mirror of
https://github.com/google/comprehensive-rust.git
synced 2024-12-04 11:39:42 +02:00
ba28dd2d4c
* Parse Markdown to support translation. This upgrades from just splitting Markdown files on double-newlines, to using a Markdown parser to break them into more appropriate chunks. The upshot is that code samples are all in one message, lists are bundled together, and generally it should be easier to translate. * [WIP] helper to update po files for new translation * process synthetic input file-by-file * review comments * remove temporary code * fix msgfmt lints
17281 lines
566 KiB
Plaintext
17281 lines
566 KiB
Plaintext
msgid ""
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msgstr ""
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"Project-Id-Version: Comprehensive Rust 🦀\n"
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"POT-Creation-Date: \n"
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"PO-Revision-Date: \n"
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"Last-Translator: \n"
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"Language-Team: \n"
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"Language: pt_BR\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=UTF-8\n"
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"Content-Transfer-Encoding: 8bit\n"
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"Plural-Forms: nplurals=2; plural=(n > 1);\n"
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"X-Generator: Poedit 3.2.2\n"
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#: src/SUMMARY.md:3
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msgid "Welcome to Comprehensive Rust 🦀"
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msgstr "Bem-vindo ao Comprehensive Rust 🦀"
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#: src/SUMMARY.md:4
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msgid "Running the Course"
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msgstr "Executando o Curso"
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#: src/SUMMARY.md:5
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msgid "Course Structure"
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msgstr "Estrutura do curso"
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#: src/SUMMARY.md:6
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msgid "Keyboard Shortcuts"
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msgstr "Atalhos do teclado"
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#: src/SUMMARY.md:7
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msgid "Using Cargo"
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msgstr "Usando Cargo"
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#: src/SUMMARY.md:8
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msgid "Rust Ecosystem"
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msgstr "Ecossistema de rust"
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#: src/SUMMARY.md:9
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msgid "Code Samples"
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msgstr "Amostras de código"
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#: src/SUMMARY.md:10
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msgid "Running Cargo Locally"
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msgstr "Executando Cargo Localmente"
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#: src/SUMMARY.md:13
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msgid "Day 1: Morning"
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msgstr "Dia 1: Manhã"
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#: src/SUMMARY.md:17 src/SUMMARY.md:73 src/SUMMARY.md:126 src/SUMMARY.md:182
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msgid "Welcome"
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msgstr "Bem-vindo"
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#: src/SUMMARY.md:18
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msgid "What is Rust?"
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msgstr "O que é Rust?"
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#: src/SUMMARY.md:19
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msgid "Hello World!"
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msgstr "Olá Mundo!"
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#: src/SUMMARY.md:20
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msgid "Small Example"
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msgstr "Pequeno Exemplo"
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#: src/SUMMARY.md:21
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msgid "Why Rust?"
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msgstr "Por que Rust?"
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#: src/SUMMARY.md:22
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msgid "Compile Time Guarantees"
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msgstr "Garantias em tempo de compilação"
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#: src/SUMMARY.md:23
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msgid "Runtime Guarantees"
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msgstr "Garantias de tempo de execução"
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#: src/SUMMARY.md:24
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msgid "Modern Features"
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msgstr "Recursos modernos"
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#: src/SUMMARY.md:25
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msgid "Basic Syntax"
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msgstr "Sintaxe Básica"
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#: src/SUMMARY.md:26
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msgid "Scalar Types"
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msgstr "Tipos escalares"
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#: src/SUMMARY.md:27
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msgid "Compound Types"
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msgstr "Tipos de compostos"
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#: src/SUMMARY.md:28
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msgid "References"
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msgstr "Referências"
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#: src/SUMMARY.md:29
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msgid "Dangling References"
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msgstr "Referências pendentes"
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#: src/SUMMARY.md:30
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msgid "Slices"
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msgstr "Slices"
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#: src/SUMMARY.md:31
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msgid "String vs str"
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msgstr "String vs str"
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#: src/SUMMARY.md:32
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msgid "Functions"
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msgstr "Funções"
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#: src/SUMMARY.md:33 src/SUMMARY.md:80
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msgid "Methods"
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msgstr "Métodos"
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#: src/SUMMARY.md:34
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msgid "Overloading"
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msgstr "Sobrecargo"
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#: src/SUMMARY.md:35 src/SUMMARY.md:64 src/SUMMARY.md:88 src/SUMMARY.md:117 src/SUMMARY.md:146 src/SUMMARY.md:174
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#: src/SUMMARY.md:197 src/SUMMARY.md:224
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msgid "Exercises"
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msgstr "Exercícios"
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#: src/SUMMARY.md:36
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msgid "Implicit Conversions"
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msgstr "Conversões implícitas"
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#: src/SUMMARY.md:37
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msgid "Arrays and for Loops"
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msgstr "Arrays e for Loops"
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#: src/SUMMARY.md:39
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msgid "Day 1: Afternoon"
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msgstr "Dia 1: Tarde"
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#: src/SUMMARY.md:41
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msgid "Variables"
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msgstr "Variáveis"
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#: src/SUMMARY.md:42
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msgid "Type Inference"
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msgstr "Inferência de tipo"
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#: src/SUMMARY.md:43
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msgid "static & const"
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msgstr "static & const"
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#: src/SUMMARY.md:44
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msgid "Scopes and Shadowing"
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msgstr "Escopos e Sombra"
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#: src/SUMMARY.md:45
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msgid "Memory Management"
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msgstr "Gerenciamento de memória"
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#: src/SUMMARY.md:46
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msgid "Stack vs Heap"
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msgstr "Pilha vs Heap"
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#: src/SUMMARY.md:47
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msgid "Stack Memory"
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msgstr "Memória de Pilha"
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#: src/SUMMARY.md:48
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msgid "Manual Memory Management"
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msgstr "Gerenciamento Manual de Memória"
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#: src/SUMMARY.md:49
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msgid "Scope-Based Memory Management"
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msgstr "Gerenciamento de memória baseado em escopo"
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#: src/SUMMARY.md:50
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msgid "Garbage Collection"
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msgstr "Garbage Collection (Coleta de lixo)"
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#: src/SUMMARY.md:51
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msgid "Rust Memory Management"
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msgstr "Gerenciamento de Memória Rust"
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#: src/SUMMARY.md:52
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msgid "Comparison"
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msgstr "Comparação"
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#: src/SUMMARY.md:53
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msgid "Ownership"
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msgstr "Ownership"
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#: src/SUMMARY.md:54
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msgid "Move Semantics"
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msgstr "Mover semântica"
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#: src/SUMMARY.md:55
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msgid "Moved Strings in Rust"
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msgstr "Strings movidas em Rust"
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#: src/SUMMARY.md:56
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msgid "Double Frees in Modern C++"
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msgstr "Liberações duplas em C++ moderno"
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#: src/SUMMARY.md:57
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msgid "Moves in Function Calls"
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msgstr "Movimentos em Chamadas de Função"
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#: src/SUMMARY.md:58
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msgid "Copying and Cloning"
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msgstr "Copiar e clonar"
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#: src/SUMMARY.md:59
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msgid "Borrowing"
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msgstr "Empréstimo"
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#: src/SUMMARY.md:60
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msgid "Shared and Unique Borrows"
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msgstr "Empréstimos Compartilhados e Únicos"
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#: src/SUMMARY.md:61
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msgid "Lifetimes"
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msgstr "Tempos de vida (Lifetimes)"
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#: src/SUMMARY.md:62
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msgid "Lifetimes in Function Calls"
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msgstr "Tempos de vida (Lifetimes) em chamadas de função"
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#: src/SUMMARY.md:63
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msgid "Lifetimes in Data Structures"
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msgstr "Tempos de vida em estruturas de dados"
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#: src/SUMMARY.md:65
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msgid "Designing a Library"
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msgstr "Projetando uma biblioteca"
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#: src/SUMMARY.md:66
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msgid "Iterators and Ownership"
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msgstr "Iteradores e Ownership"
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#: src/SUMMARY.md:69
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msgid "Day 2: Morning"
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msgstr "Dia 2: Manhã"
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#: src/SUMMARY.md:74
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msgid "Structs"
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msgstr "Structs"
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#: src/SUMMARY.md:75
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msgid "Tuple Structs"
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msgstr "Structs Tuplas"
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#: src/SUMMARY.md:76
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msgid "Field Shorthand Syntax"
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msgstr "Sintaxe abreviada de campos"
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#: src/SUMMARY.md:77
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msgid "Enums"
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msgstr "Enums"
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#: src/SUMMARY.md:78
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msgid "Variant Payloads"
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msgstr "Cargos úteis variantes"
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#: src/SUMMARY.md:79
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msgid "Enum Sizes"
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msgstr "Tamanhos de Enum"
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#: src/SUMMARY.md:81
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msgid "Method Receiver"
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msgstr "Receptor do método"
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#: src/SUMMARY.md:82 src/SUMMARY.md:157 src/SUMMARY.md:192
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msgid "Example"
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msgstr "Exemplo"
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#: src/SUMMARY.md:83
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msgid "Pattern Matching"
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msgstr "Correspondência de padrões"
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#: src/SUMMARY.md:84
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msgid "Destructuring Enums"
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msgstr "Desestruturando Enums"
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#: src/SUMMARY.md:85
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msgid "Destructuring Structs"
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msgstr "Structs Destruidoras"
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#: src/SUMMARY.md:86
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msgid "Destructuring Arrays"
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msgstr "Desestruturando Arrays"
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#: src/SUMMARY.md:87
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msgid "Match Guards"
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msgstr "Guardas de Match"
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#: src/SUMMARY.md:89
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msgid "Health Statistics"
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msgstr "Estatísticas de saúde"
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#: src/SUMMARY.md:90
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msgid "Points and Polygons"
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msgstr "Points e polígonos"
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#: src/SUMMARY.md:92
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msgid "Day 2: Afternoon"
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msgstr "Dia 2: Tarde"
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#: src/SUMMARY.md:94
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msgid "Control Flow"
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msgstr "Controle de fluxo"
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#: src/SUMMARY.md:95
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msgid "Blocks"
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msgstr "Blocos"
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#: src/SUMMARY.md:96
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msgid "if expressions"
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msgstr "if expressões"
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#: src/SUMMARY.md:97
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msgid "if let expressions"
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msgstr "if let expressões"
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#: src/SUMMARY.md:98
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msgid "while expressions"
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msgstr "enquanto expressões"
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#: src/SUMMARY.md:99
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msgid "while let expressions"
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msgstr "while let expressões"
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#: src/SUMMARY.md:100
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msgid "for expressions"
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msgstr "for expressões"
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#: src/SUMMARY.md:101
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msgid "loop expressions"
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msgstr "expressões de loop"
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#: src/SUMMARY.md:102
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msgid "match expressions"
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msgstr "expressões de match"
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#: src/SUMMARY.md:103
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msgid "break & continue"
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msgstr "break e continue"
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#: src/SUMMARY.md:104
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msgid "Standard Library"
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msgstr "Biblioteca padrão"
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#: src/SUMMARY.md:105
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msgid "Option and Result"
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msgstr "Option e Result"
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#: src/SUMMARY.md:106
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msgid "String"
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msgstr "String"
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#: src/SUMMARY.md:107
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msgid "Vec"
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msgstr "Vec"
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#: src/SUMMARY.md:108
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msgid "HashMap"
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msgstr "HashMap"
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#: src/SUMMARY.md:109
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msgid "Box"
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msgstr "Box"
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#: src/SUMMARY.md:110
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msgid "Recursive Data Types"
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msgstr "Tipos de dados recursivos"
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#: src/SUMMARY.md:111
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msgid "Niche Optimization"
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msgstr "Otimização de Nicho"
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#: src/SUMMARY.md:112
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msgid "Rc"
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msgstr "Rc"
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#: src/SUMMARY.md:113
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msgid "Modules"
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msgstr "Módulos"
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#: src/SUMMARY.md:114
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msgid "Visibility"
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msgstr "Visibilage"
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#: src/SUMMARY.md:115
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msgid "Paths"
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msgstr "Caminhos"
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#: src/SUMMARY.md:116
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msgid "Filesystem Hierarchy"
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msgstr "Hierarquia do sistema de arquivos"
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#: src/SUMMARY.md:118
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msgid "Luhn Algorithm"
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msgstr "Algoritmo de LuhnName"
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#: src/SUMMARY.md:119
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msgid "Strings and Iterators"
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msgstr "Strings e iteradores"
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#: src/SUMMARY.md:122
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msgid "Day 3: Morning"
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msgstr "Dia 3: Manhã"
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#: src/SUMMARY.md:127
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msgid "Traits"
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msgstr "Traits"
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#: src/SUMMARY.md:128
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msgid "Deriving Traits"
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msgstr "Traits derivados"
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#: src/SUMMARY.md:129
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msgid "Default Methods"
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msgstr "Métodos padrão"
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#: src/SUMMARY.md:130
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msgid "Important Traits"
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msgstr "Traits importantes"
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#: src/SUMMARY.md:131
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msgid "Iterator"
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msgstr "Iterator"
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#: src/SUMMARY.md:132
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msgid "FromIterator"
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msgstr "FromIterator"
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#: src/SUMMARY.md:133
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msgid "From and Into"
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msgstr "From e Into"
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#: src/SUMMARY.md:134
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msgid "Read and Write"
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msgstr "Read e Write"
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#: src/SUMMARY.md:135
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msgid "Add, Mul, ..."
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msgstr "Add, Mul, ..."
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#: src/SUMMARY.md:136
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msgid "Drop"
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msgstr "Drop"
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#: src/SUMMARY.md:137
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msgid "Default"
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msgstr "Métodos padrão"
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#: src/SUMMARY.md:138
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msgid "Generics"
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msgstr "Genéricos"
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#: src/SUMMARY.md:139
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msgid "Generic Data Types"
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msgstr "Tipos de dados genéricos"
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#: src/SUMMARY.md:140
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msgid "Generic Methods"
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msgstr "Métodos Genéricos"
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#: src/SUMMARY.md:141
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msgid "Trait Bounds"
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msgstr "Limites de trait"
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#: src/SUMMARY.md:142
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msgid "impl Trait"
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msgstr "impl Trait"
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#: src/SUMMARY.md:143
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msgid "Closures"
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msgstr "fechamentos"
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#: src/SUMMARY.md:144
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msgid "Monomorphization"
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msgstr "Monomorfização"
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#: src/SUMMARY.md:145
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msgid "Trait Objects"
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msgstr "Objetos de Trait"
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#: src/SUMMARY.md:147
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msgid "A Simple GUI Library"
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msgstr "Uma biblioteca GUI simples"
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#: src/SUMMARY.md:149
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msgid "Day 3: Afternoon"
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msgstr "Dia 3: Tarde"
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#: src/SUMMARY.md:151
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msgid "Error Handling"
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msgstr "Manipulação de erros"
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#: src/SUMMARY.md:152
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msgid "Panics"
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msgstr "Pânico"
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#: src/SUMMARY.md:153
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msgid "Catching Stack Unwinding"
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msgstr "Capturando pilha desenrolando"
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#: src/SUMMARY.md:154
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msgid "Structured Error Handling"
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msgstr "Tratamento de Erros Estruturado"
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#: src/SUMMARY.md:155
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msgid "Propagating Errors with ?"
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msgstr "Propagando erros com ?"
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#: src/SUMMARY.md:156
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msgid "Converting Error Types"
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msgstr "Convertendo Tipos de Erro"
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#: src/SUMMARY.md:158
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msgid "Deriving Error Enums"
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msgstr "Derivando Enums de erro"
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#: src/SUMMARY.md:159
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msgid "Dynamic Error Types"
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msgstr "Tipos de erros dinâmicos"
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#: src/SUMMARY.md:160
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msgid "Adding Context to Errors"
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msgstr "Adicionando Contexto aos Erros"
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#: src/SUMMARY.md:161
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msgid "Testing"
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msgstr "tests"
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#: src/SUMMARY.md:162
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msgid "Unit Tests"
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msgstr "tests de unage"
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#: src/SUMMARY.md:163
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msgid "Test Modules"
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msgstr "Módulos de teste"
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#: src/SUMMARY.md:164
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msgid "Documentation Tests"
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msgstr "tests de Documentação"
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#: src/SUMMARY.md:165
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msgid "Integration Tests"
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msgstr "tests de Integração"
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#: src/SUMMARY.md:166
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msgid "Unsafe Rust"
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msgstr "Unsafe Rust"
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#: src/SUMMARY.md:167
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msgid "Dereferencing Raw Pointers"
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msgstr "Desreferenciando ponteiros brutos"
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#: src/SUMMARY.md:168
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msgid "Mutable Static Variables"
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msgstr "Variáveis estáticas mutáveis"
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#: src/SUMMARY.md:169
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msgid "Unions"
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msgstr "Sindicatos"
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#: src/SUMMARY.md:170
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msgid "Calling Unsafe Functions"
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msgstr "Chamando Funções Inseguras"
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#: src/SUMMARY.md:171
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msgid "Writing Unsafe Functions"
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msgstr "Escrevendo Funções Inseguras"
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#: src/SUMMARY.md:172
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msgid "Extern Functions"
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msgstr "Funções Externas"
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#: src/SUMMARY.md:173
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msgid "Implementing Unsafe Traits"
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msgstr "Implementando Traits Inseguros"
|
|
|
|
#: src/SUMMARY.md:175
|
|
msgid "Safe FFI Wrapper"
|
|
msgstr "Invólucro FFI seguro"
|
|
|
|
#: src/SUMMARY.md:178
|
|
msgid "Day 4: Morning"
|
|
msgstr "Dia 4: Manhã"
|
|
|
|
#: src/SUMMARY.md:183
|
|
msgid "Concurrency"
|
|
msgstr "Simultaneage"
|
|
|
|
#: src/SUMMARY.md:184
|
|
msgid "Threads"
|
|
msgstr "Tópicos"
|
|
|
|
#: src/SUMMARY.md:185
|
|
msgid "Scoped Threads"
|
|
msgstr "Tópicos com Escopo"
|
|
|
|
#: src/SUMMARY.md:186
|
|
msgid "Channels"
|
|
msgstr "Channels"
|
|
|
|
#: src/SUMMARY.md:187
|
|
msgid "Unbounded Channels"
|
|
msgstr "Channels Ilimitados"
|
|
|
|
#: src/SUMMARY.md:188
|
|
msgid "Bounded Channels"
|
|
msgstr "Channels Delimitados"
|
|
|
|
#: src/SUMMARY.md:189
|
|
msgid "Shared State"
|
|
msgstr "Estado Compartilhado"
|
|
|
|
#: src/SUMMARY.md:190
|
|
msgid "Arc"
|
|
msgstr "Arc"
|
|
|
|
#: src/SUMMARY.md:191
|
|
msgid "Mutex"
|
|
msgstr "Mutex"
|
|
|
|
#: src/SUMMARY.md:193
|
|
msgid "Send and Sync"
|
|
msgstr "Send e Sync"
|
|
|
|
#: src/SUMMARY.md:193
|
|
msgid "Send"
|
|
msgstr "Send"
|
|
|
|
#: src/SUMMARY.md:193
|
|
msgid "Sync"
|
|
msgstr "Sync"
|
|
|
|
#: src/SUMMARY.md:196
|
|
msgid "Examples"
|
|
msgstr "Exemplos"
|
|
|
|
#: src/SUMMARY.md:198
|
|
msgid "Dining Philosophers"
|
|
msgstr "Jantar com philosophers"
|
|
|
|
#: src/SUMMARY.md:199
|
|
msgid "Multi-threaded Link Checker"
|
|
msgstr "Verificador de links multiencadeados"
|
|
|
|
#: src/SUMMARY.md:201
|
|
msgid "Day 4: Afternoon"
|
|
msgstr "Dia 4: Tarde"
|
|
|
|
#: src/SUMMARY.md:205
|
|
msgid "Android"
|
|
msgstr "Android"
|
|
|
|
#: src/SUMMARY.md:206
|
|
msgid "Setup"
|
|
msgstr "Configurar"
|
|
|
|
#: src/SUMMARY.md:207
|
|
msgid "Build Rules"
|
|
msgstr "Regras de construção"
|
|
|
|
#: src/SUMMARY.md:208
|
|
msgid "Binary"
|
|
msgstr "Binário"
|
|
|
|
#: src/SUMMARY.md:209
|
|
msgid "Library"
|
|
msgstr "Biblioteca"
|
|
|
|
#: src/SUMMARY.md:210
|
|
msgid "AIDL"
|
|
msgstr "AIDL"
|
|
|
|
#: src/SUMMARY.md:211
|
|
msgid "Interface"
|
|
msgstr "Interface"
|
|
|
|
#: src/SUMMARY.md:212
|
|
msgid "Implementation"
|
|
msgstr "Implementação"
|
|
|
|
#: src/SUMMARY.md:213
|
|
msgid "Server"
|
|
msgstr "Servidor"
|
|
|
|
#: src/SUMMARY.md:214
|
|
msgid "Deploy"
|
|
msgstr "Implantar"
|
|
|
|
#: src/SUMMARY.md:215
|
|
msgid "Client"
|
|
msgstr "Cliente"
|
|
|
|
#: src/SUMMARY.md:216
|
|
msgid "Changing API"
|
|
msgstr "Alterando API"
|
|
|
|
#: src/SUMMARY.md:217
|
|
msgid "Logging"
|
|
msgstr "Exploração madeireira"
|
|
|
|
#: src/SUMMARY.md:218
|
|
msgid "Interoperability"
|
|
msgstr "Interoperabilage"
|
|
|
|
#: src/SUMMARY.md:219
|
|
msgid "With C"
|
|
msgstr "Com C"
|
|
|
|
#: src/SUMMARY.md:220
|
|
msgid "Calling C with Bindgen"
|
|
msgstr "Chamando C com Bindgen"
|
|
|
|
#: src/SUMMARY.md:221
|
|
msgid "Calling Rust from C"
|
|
msgstr "Chamando Rust de C"
|
|
|
|
#: src/SUMMARY.md:222
|
|
msgid "With C++"
|
|
msgstr "Com C++"
|
|
|
|
#: src/SUMMARY.md:223
|
|
msgid "With Java"
|
|
msgstr "Com Java"
|
|
|
|
#: src/SUMMARY.md:226
|
|
msgid "Final Words"
|
|
msgstr "Palavras Finais"
|
|
|
|
#: src/SUMMARY.md:228
|
|
msgid "Thanks!"
|
|
msgstr "Obrigado!"
|
|
|
|
#: src/SUMMARY.md:229
|
|
msgid "Other Resources"
|
|
msgstr "Outros recursos"
|
|
|
|
#: src/SUMMARY.md:230
|
|
msgid "Credits"
|
|
msgstr "Créditos"
|
|
|
|
#: src/SUMMARY.md:234
|
|
msgid "Solutions"
|
|
msgstr "Soluções"
|
|
|
|
#: src/SUMMARY.md:239
|
|
msgid "Day 1 Morning"
|
|
msgstr "Dia 1 Manhã"
|
|
|
|
#: src/SUMMARY.md:240
|
|
msgid "Day 1 Afternoon"
|
|
msgstr "Dia 1 Tarde"
|
|
|
|
#: src/SUMMARY.md:241
|
|
msgid "Day 2 Morning"
|
|
msgstr "Dia 2 Manhã"
|
|
|
|
#: src/SUMMARY.md:242
|
|
msgid "Day 2 Afternoon"
|
|
msgstr "Dia 2 Tarde"
|
|
|
|
#: src/SUMMARY.md:243
|
|
msgid "Day 3 Morning"
|
|
msgstr "Dia 3 Manhã"
|
|
|
|
#: src/SUMMARY.md:244
|
|
msgid "Day 3 Afternoon"
|
|
msgstr "Dia 3 Tarde"
|
|
|
|
#: src/SUMMARY.md:245
|
|
msgid "Day 4 Morning"
|
|
msgstr "Dia 4 Manhã"
|
|
|
|
#: src/welcome.md:1
|
|
msgid "# Welcome to Comprehensive Rust 🦀"
|
|
msgstr "# Bem-vindo ao Comprehensive Rust 🦀"
|
|
|
|
#: src/welcome.md:3
|
|
msgid ""
|
|
"This is a four day Rust course developed by the Android team. The course covers\n"
|
|
"the full spectrum of Rust, from basic syntax to advanced topics like generics\n"
|
|
"and error handling. It also includes Android-specific content on the last day."
|
|
msgstr ""
|
|
"Este é um curso de Rust de quatro dias desenvolvido pela equipe do Android. O curso abrange\n"
|
|
"o espectro completo de Rust, desde a sintaxe básica até tópicos avançados como 'generics'\n"
|
|
"e tratamento de erros. Também inclui conteúdo específico para Android no último dia."
|
|
|
|
#: src/welcome.md:7
|
|
msgid ""
|
|
"The goal of the course is to teach you Rust. We assume you don't know anything\n"
|
|
"about Rust and hope to:"
|
|
msgstr ""
|
|
"O objetivo do curso é ensinar Rust a você. Nós assumimos que você não sabe nada\n"
|
|
"sobre Rust e esperamos:"
|
|
|
|
#: src/welcome.md:10
|
|
msgid ""
|
|
"* Give you a comprehensive understanding of the Rust syntax and language.\n"
|
|
"* Enable you to modify existing programs and write new programs in Rust.\n"
|
|
"* Show you common Rust idioms."
|
|
msgstr ""
|
|
"* Dar a você uma compreensão abrangente da sintaxe e linguagem de Rust.\n"
|
|
"* Permitir que você modifique programas existentes e escreva novos programas em Rust.\n"
|
|
"* Demonstrar expressões idiomáticas comuns de Rust."
|
|
|
|
#: src/welcome.md:14
|
|
msgid "On Day 4, we will cover Android-specific things such as:"
|
|
msgstr "No Dia 4, abordaremos assuntos específicos do Android, como:"
|
|
|
|
#: src/welcome.md:16
|
|
msgid ""
|
|
"* Building Android components in Rust.\n"
|
|
"* AIDL servers and clients.\n"
|
|
"* Interoperability with C, C++, and Java."
|
|
msgstr ""
|
|
"* Construindo componentes Android em Rust.\n"
|
|
"* Servidores e clientes AIDL.\n"
|
|
"* Interoperabilidade com C, C++ e Java."
|
|
|
|
#: src/welcome.md:20
|
|
msgid ""
|
|
"It is important to note that this course does not cover Android **application** \n"
|
|
"development in Rust, and that the Android-specific parts are specifically about\n"
|
|
"writing code for Android itself, the operating system. "
|
|
msgstr ""
|
|
"É importante observar que este curso não cobre o desenvolvimento de **aplicativos** para Android\n"
|
|
"em Rust, e que as partes específicas do Android são relacionadas a\n"
|
|
"escrever código para o sistema operacional Android."
|
|
|
|
#: src/welcome.md:24
|
|
msgid "## Non-Goals"
|
|
msgstr "## Fora do escopo"
|
|
|
|
#: src/welcome.md:26
|
|
msgid ""
|
|
"Rust is a large language and we won't be able to cover all of it in a few days.\n"
|
|
"Some non-goals of this course are:"
|
|
msgstr ""
|
|
"Rust é uma linguagem extensa e não conseguiremos cobrir tudo em poucos dias.\n"
|
|
"Alguns assuntos que não são objetivos deste curso são:"
|
|
|
|
#: src/welcome.md:29
|
|
msgid ""
|
|
"* Learn how to use async Rust --- we'll only mention async Rust when\n"
|
|
" covering traditional concurrency primitives. Please see [Asynchronous\n"
|
|
" Programming in Rust](https://rust-lang.github.io/async-book/) instead for\n"
|
|
" details on this topic.\n"
|
|
"* Learn how to develop macros, please see [Chapter 19.5 in the Rust\n"
|
|
" Book](https://doc.rust-lang.org/book/ch19-06-macros.html) and [Rust by\n"
|
|
" Example](https://doc.rust-lang.org/rust-by-example/macros.html) instead."
|
|
msgstr ""
|
|
"* Uso de async Rust --- só mencionaremos o async Rust quando\n"
|
|
" cobrirmos primitivas de concorrência tradicionais. Consulte [Assíncrono\n"
|
|
" Programação em Rust](https://rust-lang.github.io/async-book/) para mais\n"
|
|
" detalhes sobre este tema.\n"
|
|
"* Desenvolvimento de macros, consulte [Capítulo 19.5 no Rust\n"
|
|
" Book](https://doc.rust-lang.org/book/ch19-06-macros.html) e [Rust by\n"
|
|
" Example](https://doc.rust-lang.org/rust-by-example/macros.html) em vez disso."
|
|
|
|
#: src/welcome.md:37
|
|
msgid "## Assumptions"
|
|
msgstr "## Suposições"
|
|
|
|
#: src/welcome.md:39
|
|
msgid ""
|
|
"The course assumes that you already know how to program. Rust is a statically\n"
|
|
"typed language and we will sometimes make comparisons with C and C++ to better\n"
|
|
"explain or contrast the Rust approach."
|
|
msgstr ""
|
|
"O curso pressupõe que você já saiba programar. Rust é uma linguagem de tipagem estática\n"
|
|
"e às vezes comparamos com C e C++ para melhor\n"
|
|
"explicar ou contrastar a abordagem Rust."
|
|
|
|
#: src/welcome.md:43
|
|
msgid ""
|
|
"If you know how to program in a dynamically typed language such as Python or\n"
|
|
"JavaScript, then you will be able to follow along just fine too."
|
|
msgstr ""
|
|
"Se você sabe programar em uma linguagem de tipagem dinâmica, como Python ou\n"
|
|
"JavaScript, então você também será capaz de acompanhar."
|
|
|
|
#: src/welcome.md:46 src/cargo/rust-ecosystem.md:19 src/cargo/code-samples.md:22 src/cargo/running-locally.md:68
|
|
#: src/welcome-day-1.md:14 src/welcome-day-1/what-is-rust.md:19 src/hello-world.md:20 src/hello-world/small-example.md:21
|
|
#: src/why-rust.md:9 src/why-rust/compile-time.md:14 src/why-rust/runtime.md:8 src/why-rust/modern.md:19
|
|
#: src/basic-syntax/compound-types.md:28 src/basic-syntax/slices.md:18 src/basic-syntax/string-slices.md:25
|
|
#: src/basic-syntax/functions.md:33 src/basic-syntax/functions-interlude.md:25 src/exercises/day-1/morning.md:9
|
|
#: src/exercises/day-1/for-loops.md:90 src/basic-syntax/variables.md:15 src/basic-syntax/type-inference.md:24
|
|
#: src/basic-syntax/static-and-const.md:46 src/basic-syntax/scopes-shadowing.md:23 src/memory-management/stack.md:26
|
|
#: src/memory-management/rust.md:12 src/ownership/move-semantics.md:20 src/ownership/moves-function-calls.md:18
|
|
#: src/ownership/copy-clone.md:33 src/ownership/borrowing.md:25 src/ownership/shared-unique-borrows.md:23
|
|
#: src/ownership/lifetimes-function-calls.md:27 src/ownership/lifetimes-data-structures.md:23
|
|
#: src/exercises/day-1/afternoon.md:9 src/structs/tuple-structs.md:35 src/structs/field-shorthand.md:25
|
|
#: src/enums/variant-payloads.md:33 src/methods.md:28 src/pattern-matching/destructuring-enums.md:33
|
|
#: src/pattern-matching/destructuring-arrays.md:18 src/pattern-matching/match-guards.md:20 src/exercises/day-2/morning.md:9
|
|
#: src/exercises/day-2/points-polygons.md:115 src/control-flow/blocks.md:40 src/control-flow/if-expressions.md:29
|
|
#: src/control-flow/if-let-expressions.md:19 src/control-flow/while-let-expressions.md:25 src/std/option-result.md:16
|
|
#: src/std/string.md:28 src/std/vec.md:35 src/std/hashmap.md:36 src/std/box.md:32 src/std/rc.md:29 src/modules.md:26
|
|
#: src/modules/visibility.md:37 src/exercises/day-2/afternoon.md:5 src/traits.md:39 src/traits/iterator.md:30
|
|
#: src/traits/from-iterator.md:15 src/traits/operators.md:24 src/traits/drop.md:32 src/traits/default.md:38
|
|
#: src/generics/methods.md:23 src/generics/trait-bounds.md:33 src/generics/impl-trait.md:22 src/generics/closures.md:23
|
|
#: src/exercises/day-3/morning.md:5 src/error-handling/result.md:25 src/error-handling/try-operator.md:48
|
|
#: src/error-handling/converting-error-types-example.md:48 src/error-handling/deriving-error-enums.md:37
|
|
#: src/error-handling/dynamic-errors.md:34 src/error-handling/error-contexts.md:33 src/unsafe.md:26
|
|
#: src/unsafe/raw-pointers.md:24 src/unsafe/mutable-static-variables.md:30 src/unsafe/unions.md:19
|
|
#: src/unsafe/writing-unsafe-functions.md:31 src/unsafe/extern-functions.md:19 src/unsafe/unsafe-traits.md:28
|
|
#: src/exercises/day-3/afternoon.md:5 src/concurrency/threads.md:28 src/concurrency/channels.md:25
|
|
#: src/concurrency/shared_state/arc.md:27 src/concurrency/shared_state/example.md:21 src/concurrency/send-sync.md:18
|
|
#: src/concurrency/send-sync/sync.md:12 src/exercises/day-4/morning.md:10 src/android/interoperability/with-c/rust.md:81
|
|
#: src/exercises/day-4/afternoon.md:10
|
|
msgid "<details>"
|
|
msgstr "<details>"
|
|
|
|
#: src/welcome.md:48
|
|
msgid ""
|
|
"This is an example of a _speaker note_. We will use these to add additional\n"
|
|
"information to the slides. This could be key points which the instructor should\n"
|
|
"cover as well as answers to typical questions which come up in class."
|
|
msgstr ""
|
|
"Este é um exemplo de _nota do instrutor_. Nós os usaremos para adicionar\n"
|
|
"informações aos slides. Estes podem ser pontos chave em que o instrutor deve\n"
|
|
"cobrir respostas à perguntas típicas que surgem em sala de aula."
|
|
|
|
#: src/welcome.md:52 src/cargo/rust-ecosystem.md:67 src/cargo/code-samples.md:35 src/cargo/running-locally.md:74
|
|
#: src/welcome-day-1.md:42 src/welcome-day-1/what-is-rust.md:29 src/hello-world.md:36 src/hello-world/small-example.md:44
|
|
#: src/why-rust.md:24 src/why-rust/compile-time.md:35 src/why-rust/runtime.md:22 src/why-rust/modern.md:66
|
|
#: src/basic-syntax/compound-types.md:62 src/basic-syntax/references.md:28 src/basic-syntax/slices.md:36
|
|
#: src/basic-syntax/functions.md:54 src/exercises/day-1/morning.md:28 src/exercises/day-1/for-loops.md:95
|
|
#: src/basic-syntax/variables.md:20 src/basic-syntax/type-inference.md:48 src/basic-syntax/static-and-const.md:52
|
|
#: src/basic-syntax/scopes-shadowing.md:39 src/memory-management/stack.md:49 src/memory-management/rust.md:18
|
|
#: src/ownership/move-semantics.md:26 src/ownership/moves-function-calls.md:26 src/ownership/borrowing.md:51
|
|
#: src/ownership/shared-unique-borrows.md:29 src/ownership/lifetimes-function-calls.md:60 src/exercises/day-1/afternoon.md:15
|
|
#: src/exercises/day-1/book-library.md:103 src/structs.md:41 src/enums/variant-payloads.md:41 src/enums/sizes.md:136
|
|
#: src/methods/example.md:53 src/pattern-matching/destructuring-enums.md:39 src/exercises/day-2/morning.md:15
|
|
#: src/exercises/day-2/points-polygons.md:125 src/control-flow/if-let-expressions.md:26 src/control-flow/for-expressions.md:29
|
|
#: src/control-flow/loop-expressions.md:27 src/std.md:31 src/std/option-result.md:25 src/std/string.md:34 src/std/vec.md:49
|
|
#: src/std/hashmap.md:40 src/std/rc.md:66 src/modules.md:32 src/modules/visibility.md:48 src/exercises/day-2/afternoon.md:11
|
|
#: src/traits.md:54 src/traits/from-iterator.md:26 src/traits/operators.md:38 src/traits/drop.md:42 src/traits/default.md:47
|
|
#: src/generics/methods.md:31 src/generics/closures.md:38 src/exercises/day-3/morning.md:11
|
|
#: src/error-handling/try-operator.md:55 src/error-handling/converting-error-types-example.md:60
|
|
#: src/error-handling/deriving-error-enums.md:45 src/error-handling/dynamic-errors.md:41
|
|
#: src/error-handling/error-contexts.md:42 src/unsafe.md:32 src/unsafe/raw-pointers.md:42
|
|
#: src/unsafe/mutable-static-variables.md:35 src/unsafe/unions.md:28 src/unsafe/writing-unsafe-functions.md:38
|
|
#: src/unsafe/extern-functions.md:28 src/unsafe/unsafe-traits.md:37 src/exercises/day-3/afternoon.md:11
|
|
#: src/concurrency/threads.md:45 src/concurrency/channels.md:32 src/concurrency/shared_state/arc.md:38
|
|
#: src/concurrency/shared_state/example.md:60 src/concurrency/send-sync/sync.md:18 src/exercises/day-4/morning.md:16
|
|
#: src/android/interoperability/with-c/rust.md:86 src/exercises/day-4/afternoon.md:15
|
|
msgid "</details>"
|
|
msgstr "</details>"
|
|
|
|
#: src/running-the-course.md:1
|
|
msgid "# Running the Course"
|
|
msgstr "# Executando o Curso"
|
|
|
|
#: src/running-the-course.md:3 src/running-the-course/course-structure.md:3
|
|
msgid "> This page is for the course instructor."
|
|
msgstr "> Esta página é para o instrutor do curso."
|
|
|
|
#: src/running-the-course.md:5
|
|
msgid ""
|
|
"Here is a bit of background information about how we've been running the course\n"
|
|
"internally at Google."
|
|
msgstr ""
|
|
"Aqui estão algumas informações básicas sobre como estamos conduzindo o curso\n"
|
|
"internamente no Google."
|
|
|
|
#: src/running-the-course.md:8
|
|
msgid "To run the course, you need to:"
|
|
msgstr "Para executar o curso, você precisa:"
|
|
|
|
#: src/running-the-course.md:10
|
|
msgid ""
|
|
"1. Make yourself familiar with the course material. We've included speaker notes\n"
|
|
" on some of the pages to help highlight the key points (please help us by\n"
|
|
" contributing more speaker notes!). You should make sure to open the speaker\n"
|
|
" notes in a popup (click the link with a little arrow next to \"Speaker\n"
|
|
" Notes\"). This way you have a clean screen to present to the class."
|
|
msgstr ""
|
|
"1. Familiarize-se com o material do curso. Incluímos notas do instrutor\n"
|
|
" em algumas das páginas para ajudar a destacar os pontos chave (por favor, ajude-nos\n"
|
|
" contribuindo com mais notas do instrutor!). Você deve certificar-se de abrir as notas\n"
|
|
" do instrutor em um pop-up (clique no link com uma pequena seta ao lado de \"Speaker\n"
|
|
" Notes\"). Dessa forma, você tem uma tela limpa para apresentar à turma."
|
|
|
|
#: src/running-the-course.md:16
|
|
msgid ""
|
|
"2. Decide on the dates. Since the course is large, we recommend that you\n"
|
|
" schedule the four days over two weeks. Course participants have said that\n"
|
|
" they find it helpful to have a gap in the course since it helps them process\n"
|
|
" all the information we give them."
|
|
msgstr ""
|
|
"2. Decida as datas. Como o curso é grande, recomendamos que você\n"
|
|
" agende os quatro dias em duas semanas. Os participantes do curso disseram que\n"
|
|
" eles acham útil ter uma pausa no curso, pois os ajuda a processar\n"
|
|
" todas as informações que lhes damos."
|
|
|
|
#: src/running-the-course.md:21
|
|
msgid ""
|
|
"3. Find a room large enough for your in-person participants. We recommend a\n"
|
|
" class size of 15-20 people. That's small enough that people are comfortable\n"
|
|
" asking questions --- it's also small enough that one instructor will have\n"
|
|
" time to answer the questions."
|
|
msgstr ""
|
|
"3. Encontre uma sala suficientemente grande para seus participantes presenciais. Recomendamos\n"
|
|
" turmas de 15 a 20 pessoas. Isso é suficientemente pequeno para que as pessoas se sintam confortáveis\n"
|
|
" em fazer perguntas --- e para que um instrutor tenha\n"
|
|
" tempo para responder às perguntas."
|
|
|
|
#: src/running-the-course.md:26
|
|
msgid ""
|
|
"4. On the day of your course, show up to the room a little early to set things\n"
|
|
" up. We recommend presenting directly using `mdbook serve` running on your\n"
|
|
" laptop (see the [installation instructions][5]). This ensures optimal performance with no lag as you change pages.\n"
|
|
" Using your laptop will also allow you to fix typos as you or the course\n"
|
|
" participants spot them."
|
|
msgstr ""
|
|
"4. No dia do seu curso, chegue um pouco mais cedo na sala para acertar as coisas.\n"
|
|
" Recomendamos apresentar diretamente usando `mdbook serve` rodando em seu\n"
|
|
" laptop. Isso garante um desempenho ideal sem atrasos quando você muda de página.\n"
|
|
" Usar seu laptop também permitirá que você corrija erros de digitação enquanto você ou\n"
|
|
" os participantes os identificam."
|
|
|
|
#: src/running-the-course.md:32
|
|
msgid ""
|
|
"5. Let people solve the exercises by themselves or in small groups. Make sure to\n"
|
|
" ask people if they're stuck or if there is anything you can help with. When\n"
|
|
" you see that several people have the same problem, call it out to the class\n"
|
|
" and offer a solution, e.g., by showing people where to find the relevant\n"
|
|
" information in the standard library."
|
|
msgstr ""
|
|
"5. Deixe as pessoas resolverem os exercícios sozinhas ou em pequenos grupos. Tenha certeza de\n"
|
|
" perguntar às pessoas se elas estão com dificuldades ou se há algo em que você possa ajudar. Quando\n"
|
|
" você vê que várias pessoas têm o mesmo problema, chame a turma\n"
|
|
" e oferecer uma solução, por exemplo, mostrando às pessoas onde encontrar as informações relevantes\n"
|
|
" na biblioteca padrão."
|
|
|
|
#: src/running-the-course.md:38
|
|
msgid ""
|
|
"6. If you don't skip the Android specific parts on Day 4, you will need an [AOSP\n"
|
|
" checkout][1]. Make a checkout of the [course repository][2] on the same\n"
|
|
" machine and move the `src/android/` directory into the root of your AOSP\n"
|
|
" checkout. This will ensure that the Android build system sees the\n"
|
|
" `Android.bp` files in `src/android/`."
|
|
msgstr ""
|
|
"6. Se você não pular as partes específicas do Android no Dia 4, precisará de um [checkout\n"
|
|
" do AOSP][1]. Faça um checkout do [repositório do curso][2] no mesmo\n"
|
|
" computador e mova o diretório `src/android/` para a raiz do seu checkout doAOSP.\n"
|
|
" Isso garantirá que o sistema de compilação do Android veja os\n"
|
|
" arquivos `Android.bp` em `src/android/`."
|
|
|
|
#: src/running-the-course.md:44
|
|
msgid ""
|
|
" Ensure that `adb sync` works with your emulator or real device and pre-build\n"
|
|
" all Android examples using `src/android/build_all.sh`. Read the script to see\n"
|
|
" the commands it runs and make sure they work when you run them by hand."
|
|
msgstr ""
|
|
" Certifique-se de que `adb sync` funcione com seu emulador ou dispositivo real e pré-compile\n"
|
|
" todos os exemplos do Android usando `src/android/build_all.sh`. Leia o roteiro para ver\n"
|
|
" os comandos executados e verifique se eles funcionam quando você os executa manualmente."
|
|
|
|
#: src/running-the-course.md:48
|
|
msgid ""
|
|
"That is all, good luck running the course! We hope it will be as much fun for\n"
|
|
"you as it has been for us!"
|
|
msgstr ""
|
|
"Isso é tudo, boa sorte no curso! Esperamos que seja tão divertido para\n"
|
|
"você como tem sido para nós!"
|
|
|
|
#: src/running-the-course.md:51
|
|
msgid ""
|
|
"Please [provide feedback][3] afterwards so that we can keep improving the\n"
|
|
"course. We would love to hear what worked well for you and what can be made\n"
|
|
"better. Your students are also very welcome to [send us feedback][4]!"
|
|
msgstr ""
|
|
"Por favor, [forneça feedback][3] depois para que possamos continuar melhorando o\n"
|
|
"curso. Adoraríamos saber o que funcionou bem para você e o que pode ser melhorado.\n"
|
|
" Seus alunos também são muito bem-vindos para [nos enviar feedback][4]!"
|
|
|
|
#: src/running-the-course.md:55
|
|
msgid ""
|
|
"[1]: https://source.android.com/docs/setup/download/downloading\n"
|
|
"[2]: https://github.com/google/comprehensive-rust\n"
|
|
"[3]: https://github.com/google/comprehensive-rust/discussions/86\n"
|
|
"[4]: https://github.com/google/comprehensive-rust/discussions/100\n"
|
|
"[5]: https://github.com/google/comprehensive-rust#building"
|
|
msgstr ""
|
|
"[1]: https://source.android.com/docs/setup/download/downloading\n"
|
|
"[2]: https://github.com/google/comprehensive-rust\n"
|
|
"[3]: https://github.com/google/comprehensive-rust/discussions/86\n"
|
|
"[4]: https://github.com/google/comprehensive-rust/discussions/100"
|
|
|
|
#: src/running-the-course/course-structure.md:1
|
|
msgid "# Course Structure"
|
|
msgstr "# Estrutura do curso"
|
|
|
|
#: src/running-the-course/course-structure.md:5
|
|
msgid "The course is fast paced and covers a lot of ground:"
|
|
msgstr "O curso é rápido e muito abrangente:"
|
|
|
|
#: src/running-the-course/course-structure.md:7
|
|
msgid ""
|
|
"* Day 1: Basic Rust, ownership and the borrow checker.\n"
|
|
"* Day 2: Compound data types, pattern matching, the standard library.\n"
|
|
"* Day 3: Traits and generics, error handling, testing, unsafe Rust.\n"
|
|
"* Day 4: Concurrency in Rust and interoperability with other languages"
|
|
msgstr ""
|
|
"* Dia 1: Rust básico, ownership e verificador de empréstimo.\n"
|
|
"* Dia 2: Tipos de dados compostos, correspondência de padrões, a biblioteca padrão.\n"
|
|
"* Dia 3: Traits e generics, tratamento de erros, testes, Rust inseguro.\n"
|
|
"* Dia 4: Concorrência em Rust e interoperabilidade com outras linguagens"
|
|
|
|
#: src/running-the-course/course-structure.md:12
|
|
msgid ""
|
|
"> **Exercise for Day 4:** Do you interface with some C/C++ code in your project\n"
|
|
"> which we could attempt to move to Rust? The fewer dependencies the better.\n"
|
|
"> Parsing code would be ideal."
|
|
msgstr ""
|
|
"> **Exercício para o dia 4:** Você faz interface com algum código C/C++ em seu projeto\n"
|
|
"> que poderíamos tentar mover para Rust? Quanto menos dependências, melhor.\n"
|
|
"> Analisar o código seria o ideal."
|
|
|
|
#: src/running-the-course/course-structure.md:16
|
|
msgid "## Format"
|
|
msgstr "## Formato"
|
|
|
|
#: src/running-the-course/course-structure.md:18
|
|
msgid ""
|
|
"The course is meant to be very interactive and we recommend letting the\n"
|
|
"questions drive the exploration of Rust!"
|
|
msgstr ""
|
|
"O curso pretende ser muito interativo e recomendamos deixar as\n"
|
|
"perguntas conduzirem a exploração de Rust!"
|
|
|
|
#: src/running-the-course/keyboard-shortcuts.md:1
|
|
msgid "# Keyboard Shortcuts"
|
|
msgstr "# Atalhos do teclado"
|
|
|
|
#: src/running-the-course/keyboard-shortcuts.md:3
|
|
msgid "There are several useful keyboard shortcuts in mdBook:"
|
|
msgstr "Existem vários atalhos de teclado úteis no mdBook:"
|
|
|
|
#: src/running-the-course/keyboard-shortcuts.md:5
|
|
msgid ""
|
|
"* <kbd>Arrow-Left</kbd>: Navigate to the previous page.\n"
|
|
"* <kbd>Arrow-Right</kbd>: Navigate to the next page.\n"
|
|
"* <kbd>Ctrl + Enter</kbd>: Execute the code sample that has focus.\n"
|
|
"* <kbd>s</kbd>: Activate the search bar."
|
|
msgstr ""
|
|
"* <kbd>Seta para a esquerda</kbd>: Navega para a página anterior.\n"
|
|
"* <kbd>Seta para a direita</kbd>: Navega para a próxima página.\n"
|
|
"* <kbd>Ctrl + Enter</kbd>: Executa o exemplo de código que tem o foco.\n"
|
|
"* <kbd>s</kbd>: ativa a barra de pesquisa."
|
|
|
|
#: src/cargo.md:1
|
|
msgid "# Using Cargo"
|
|
msgstr "# Usando cargo"
|
|
|
|
#: src/cargo.md:3
|
|
msgid ""
|
|
"When you start reading about Rust, you will soon meet [Cargo](https://doc.rust-lang.org/cargo/), the standard tool\n"
|
|
"used in the Rust ecosystem to build and run Rust applications. Here we want to\n"
|
|
"give a brief overview of what Cargo is and how it fits into the wider ecosystem\n"
|
|
"and how it fits into this training."
|
|
msgstr ""
|
|
"Quando você começar a ler sobre Rust, logo conhecerá o [Cargo](https://doc.rust-lang.org/cargo/), a ferramenta padrão\n"
|
|
"usada no ecossistema Rust para criar e executar aplicativos Rust. Aqui nós queremos\n"
|
|
"dar uma breve visão geral do que é o Cargo e como ele se encaixa no ecossistema mais amplo\n"
|
|
"e como ele se encaixa neste treinamento."
|
|
|
|
#: src/cargo.md:8
|
|
msgid "## Installation"
|
|
msgstr "## Instalação"
|
|
|
|
#: src/cargo.md:10
|
|
msgid "### Rustup (Recommended)"
|
|
msgstr "### Rustup (Recomendado)"
|
|
|
|
#: src/cargo.md:12
|
|
msgid ""
|
|
"You can follow the instructions to install cargo and rust compiler, among other standard ecosystem tools with the [rustup]"
|
|
"[3] tool, which is maintained by the Rust Foundation."
|
|
msgstr ""
|
|
"Você pode seguir as instruções para instalar o cargo e o compilador de Rust, entre outras ferramentas padrão do ecossistema "
|
|
"com a ferramenta [rustup][3], que é mantida pela Rust Foundation."
|
|
|
|
#: src/cargo.md:14
|
|
msgid ""
|
|
"Along with cargo and rustc, Rustup will install itself as a command line utility that you can use to install/switch "
|
|
"toolchains, setup cross compilation, etc."
|
|
msgstr ""
|
|
"Juntamente com cargo e rustc, o Rustup se instalará como um utilitário de linha de comando que você pode usar para instalar/"
|
|
"alternar ferramentas, configurar compilação cruzada, etc."
|
|
|
|
#: src/cargo.md:16
|
|
msgid "### Package Managers"
|
|
msgstr "### Gerenciadores de pacotes"
|
|
|
|
#: src/cargo.md:18
|
|
msgid "#### Debian"
|
|
msgstr "#### Debian"
|
|
|
|
#: src/cargo.md:20
|
|
msgid "On Debian/Ubuntu, you can install Cargo, the Rust source and the [Rust formatter][6] with"
|
|
msgstr "No Debian/Ubuntu, você pode instalar o Cargo e o fonte Rust com"
|
|
|
|
#: src/cargo.md:22
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ sudo apt install cargo rust-src rustfmt\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ sudo apt install cargo rust-src\n"
|
|
"```"
|
|
|
|
#: src/cargo.md:26
|
|
msgid ""
|
|
"This will allow [rust-analyzer][1] to jump to the definitions. We suggest using\n"
|
|
"[VS Code][2] to edit the code (but any LSP compatible editor works)."
|
|
msgstr ""
|
|
"Isso permitirá que o [rust-analyzer][1] localize as definições. Sugerimos usar o\n"
|
|
"[VS Code][2] para editar o código (mas qualquer editor compatível com LSP funciona)."
|
|
|
|
#: src/cargo.md:29
|
|
msgid ""
|
|
"Some folks also like to use the [JetBrains][4] family of IDEs, which do their own analysis but have their own tradeoffs. If "
|
|
"you prefer them, you can install the [Rust Plugin][5]. Please take note that as of January 2023 debugging only works on the "
|
|
"CLion version of the JetBrains IDEA suite."
|
|
msgstr ""
|
|
"Algumas Persons também gostam de usar a família de IDEs [JetBrains][4], que fazem suas próprias análises, mas têm suas "
|
|
"próprias vantagens e desvantagens. Se você preferir, pode instalar o [Plugin Rust][5]. Observe que, a partir de Janeiro de "
|
|
"2023, a depuração funciona apenas na versão CLion do pacote JetBrains IDEA."
|
|
|
|
#: src/cargo.md:31
|
|
msgid ""
|
|
"[1]: https://rust-analyzer.github.io/\n"
|
|
"[2]: https://code.visualstudio.com/\n"
|
|
"[3]: https://rustup.rs/\n"
|
|
"[4]: https://www.jetbrains.com/clion/\n"
|
|
"[5]: https://www.jetbrains.com/rust/\n"
|
|
"[6]: https://github.com/rust-lang/rustfmt"
|
|
msgstr ""
|
|
"[1]: https://rust-analyzer.github.io/\n"
|
|
"[2]: https://code.visualstudio.com/\n"
|
|
"[3]: https://rustup.rs/\n"
|
|
"[4]: https://www.jetbrains.com/clion/\n"
|
|
"[5]: https://www.jetbrains.com/rust/"
|
|
|
|
#: src/cargo/rust-ecosystem.md:1
|
|
msgid "# The Rust Ecosystem"
|
|
msgstr "# O ecossistema da rust"
|
|
|
|
#: src/cargo/rust-ecosystem.md:3
|
|
msgid "The Rust ecosystem consists of a number of tools, of which the main ones are:"
|
|
msgstr "O ecossistema Rust consiste em várias ferramentas, das quais as principais são:"
|
|
|
|
#: src/cargo/rust-ecosystem.md:5
|
|
msgid ""
|
|
"* `rustc`: the Rust compiler which turns `.rs` files into binaries and other\n"
|
|
" intermediate formats."
|
|
msgstr ""
|
|
"* `rustc`: o compilador Rust que transforma arquivos `.rs` em binários e outros\n"
|
|
" formatos intermediários[^rustc]."
|
|
|
|
#: src/cargo/rust-ecosystem.md:8
|
|
msgid ""
|
|
"* `cargo`: the Rust dependency manager and build tool. Cargo knows how to\n"
|
|
" download dependencies hosted on <https://crates.io> and it will pass them to\n"
|
|
" `rustc` when building your project. Cargo also comes with a built-in test\n"
|
|
" runner which is used to execute unit tests."
|
|
msgstr ""
|
|
"* `cargo`: o gerenciador de dependências Rust e a ferramenta de compilação. O Cargo sabe como\n"
|
|
" baixar as dependências hospedadas em <https://crates.io> e as passará para\n"
|
|
" o `rustc` ao compilar o seu projeto. O Cargo também vem com um executor de testes\n"
|
|
" embutido que é usado para executar testes unitários."
|
|
|
|
#: src/cargo/rust-ecosystem.md:13
|
|
msgid ""
|
|
"* `rustup`: the Rust toolchain installer and updater. This tool is used to\n"
|
|
" install and update `rustc` and `cargo` when new versions of Rust is released.\n"
|
|
" In addition, `rustup` can also download documentation for the standard\n"
|
|
" library. You can have multiple versions of Rust installed at once and `rustup`\n"
|
|
" will let you switch between them as needed."
|
|
msgstr ""
|
|
"* `rustup`: o instalador e atualizador do toolchain do Rust. Esta ferramenta é utilizada para\n"
|
|
" instalar e atualizar o `rustc` e o `cargo` quando novas versões do Rust forem lançadas.\n"
|
|
" Além disso, `rustup` também pode baixar documentação da biblioteca\n"
|
|
" padrão. Você pode ter várias versões do Rust instaladas ao mesmo tempo e `rustup`\n"
|
|
" permitirá que você alterne entre eles conforme necessário."
|
|
|
|
#: src/cargo/rust-ecosystem.md:21 src/hello-world.md:25 src/hello-world/small-example.md:27 src/why-rust/runtime.md:10
|
|
#: src/why-rust/modern.md:21 src/basic-syntax/compound-types.md:30 src/error-handling/try-operator.md:50
|
|
#: src/error-handling/converting-error-types-example.md:50 src/concurrency/threads.md:30
|
|
msgid "Key points:"
|
|
msgstr "Pontos chave:"
|
|
|
|
#: src/cargo/rust-ecosystem.md:23
|
|
msgid ""
|
|
"* Rust has a rapid release schedule with a new release coming out\n"
|
|
" every six weeks. New releases maintain backwards compatibility with\n"
|
|
" old releases --- plus they enable new functionality."
|
|
msgstr ""
|
|
"* Rust tem um rápido cronograma de lançamento com um novo lançamento saindo\n"
|
|
" a cada seis semanas. Novos lançamentos mantêm compatibilidade com versões anteriores\n"
|
|
" --- além disso, eles permitem novas funcionalidades."
|
|
|
|
#: src/cargo/rust-ecosystem.md:27
|
|
msgid "* There are three release channels: \"stable\", \"beta\", and \"nightly\"."
|
|
msgstr "* Existem três canais de lançamento: \"stable\", \"beta\" e \"nightly\"."
|
|
|
|
#: src/cargo/rust-ecosystem.md:29
|
|
msgid ""
|
|
"* New features are being tested on \"nightly\", \"beta\" is what becomes\n"
|
|
" \"stable\" every six weeks."
|
|
msgstr ""
|
|
"* Novos recursos estão sendo testados em \"nightly\", \"beta\" é o que se torna\n"
|
|
" \"estável\" a cada seis semanas."
|
|
|
|
#: src/cargo/rust-ecosystem.md:32
|
|
msgid ""
|
|
"* Rust also has [editions]: the current edition is Rust 2021. Previous\n"
|
|
" editions were Rust 2015 and Rust 2018."
|
|
msgstr ""
|
|
"* Rust também tem [edições]: a edição atual é Rust 2021. Edições\n"
|
|
" anteriores foram Rust 2015 e Rust 2018."
|
|
|
|
#: src/cargo/rust-ecosystem.md:35
|
|
msgid ""
|
|
" * The editions are allowed to make backwards incompatible changes to\n"
|
|
" the language."
|
|
msgstr ""
|
|
" * As edições podem fazer alterações incompatíveis com versões anteriores\n"
|
|
" da linguagem."
|
|
|
|
#: src/cargo/rust-ecosystem.md:38
|
|
msgid ""
|
|
" * To prevent breaking code, editions are opt-in: you select the\n"
|
|
" edition for your crate via the `Cargo.toml` file."
|
|
msgstr ""
|
|
" * Para evitar rupturas, as edições são opcionais: você seleciona a\n"
|
|
" edição para o seu crate através do arquivo `Cargo.toml`."
|
|
|
|
#: src/cargo/rust-ecosystem.md:41
|
|
msgid ""
|
|
" * To avoid splitting the ecosystem, Rust compilers can mix code\n"
|
|
" written for different editions."
|
|
msgstr ""
|
|
" * Para evitar a divisão do ecossistema, os compiladores Rust podem misturar código\n"
|
|
" escrito para diferentes edições."
|
|
|
|
#: src/cargo/rust-ecosystem.md:44
|
|
msgid " * Mention that it is quite rare to ever use the compiler directly not through `cargo` (most users never do)."
|
|
msgstr ""
|
|
" * Mencione que é muito raro usar o compilador diretamente, não através do `cargo` (a maioria dos usuários nunca o faz)."
|
|
|
|
#: src/cargo/rust-ecosystem.md:46
|
|
msgid ""
|
|
" * It might be worth alluding that Cargo itself is an extremely powerful and comprehensive tool. It is capable of many "
|
|
"advanced features including but not limited to: \n"
|
|
" * Project/package structure\n"
|
|
" * [workspaces]\n"
|
|
" * Dev Dependencies and Runtime Dependency management/caching\n"
|
|
" * [build scripting]\n"
|
|
" * [global installation]\n"
|
|
" * It is also extensible with sub command plugins as well (such as [cargo clippy]).\n"
|
|
" * Read more from the [official Cargo Book]"
|
|
msgstr ""
|
|
" * Pode valer a pena mencionar que o Cargo é uma ferramenta extremamente poderosa e abrangente. Ele é capaz de muitos "
|
|
"recursos avançados, incluindo, entre outros:\n"
|
|
" * Estrutura do projeto/pacote\n"
|
|
" * [workspaces]\n"
|
|
" * Gerenciamento de Dependências de desenvolvimento e dependências de tempo de execução/cache\n"
|
|
" * [scripts de compilação]\n"
|
|
" * [instalação global]\n"
|
|
" * Também é extensível com plugins de subcomando (como [cargo clippy]).\n"
|
|
" * Leia mais no [livro oficial do Cargo]"
|
|
|
|
#: src/cargo/rust-ecosystem.md:55
|
|
msgid "[editions]: https://doc.rust-lang.org/edition-guide/"
|
|
msgstr "[edições]: https://doc.rust-lang.org/edition-guide/"
|
|
|
|
#: src/cargo/rust-ecosystem.md:57
|
|
msgid "[workspaces]: https://doc.rust-lang.org/cargo/reference/workspaces.html"
|
|
msgstr "[workspaces]: https://doc.rust-lang.org/cargo/reference/workspaces.html"
|
|
|
|
#: src/cargo/rust-ecosystem.md:59
|
|
msgid "[build scripting]: https://doc.rust-lang.org/cargo/reference/build-scripts.html"
|
|
msgstr "[scripts de compilação]: https://doc.rust-lang.org/cargo/reference/build-scripts.html"
|
|
|
|
#: src/cargo/rust-ecosystem.md:61
|
|
msgid "[global installation]: https://doc.rust-lang.org/cargo/commands/cargo-install.html"
|
|
msgstr "[instalação global]: https://doc.rust-lang.org/cargo/commands/cargo-install.html"
|
|
|
|
#: src/cargo/rust-ecosystem.md:63
|
|
msgid "[cargo clippy]: https://github.com/rust-lang/rust-clippy"
|
|
msgstr "[cargo clippy]: https://github.com/rust-lang/rust-clippy"
|
|
|
|
#: src/cargo/rust-ecosystem.md:65
|
|
msgid "[official Cargo Book]: https://doc.rust-lang.org/cargo/"
|
|
msgstr "[livro oficial do Cargo]: https://doc.rust-lang.org/cargo/"
|
|
|
|
#: src/cargo/code-samples.md:1
|
|
msgid "# Code Samples in This Training"
|
|
msgstr "# Exemplos de código neste treinamento"
|
|
|
|
#: src/cargo/code-samples.md:3
|
|
msgid ""
|
|
"For this training, we will mostly explore the Rust language through examples\n"
|
|
"which can be executed through your browser. This makes the setup much easier and\n"
|
|
"ensures a consistent experience for everyone."
|
|
msgstr ""
|
|
"Para este treinamento, exploraremos principalmente a linguagem Rust por meio de exemplos\n"
|
|
"que podem ser executados através do seu navegador. Isso torna a instalação muito mais fácil e\n"
|
|
"garante uma experiência consistente para todos."
|
|
|
|
#: src/cargo/code-samples.md:7
|
|
msgid ""
|
|
"Installing Cargo is still encouraged: it will make it easier for you to do the\n"
|
|
"exercises. On the last day, we will do a larger exercise which shows you how to\n"
|
|
"work with dependencies and for that you need Cargo."
|
|
msgstr ""
|
|
"A instalação do Cargo ainda assim é incentivada: será mais fácil para você fazer os\n"
|
|
"exercícios. No último dia, faremos um exercício maior que mostra como\n"
|
|
"trabalhar com dependências e para isso você precisa do Cargo."
|
|
|
|
#: src/cargo/code-samples.md:11
|
|
msgid "The code blocks in this course are fully interactive:"
|
|
msgstr "Os blocos de código neste curso são totalmente interativos:"
|
|
|
|
#: src/cargo/code-samples.md:13
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" println!(\"Edit me!\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" println!(\"Edite-me!\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/cargo/code-samples.md:19
|
|
msgid ""
|
|
"You can use <kbd>Ctrl + Enter</kbd> to execute the code when focus is in the\n"
|
|
"text box."
|
|
msgstr ""
|
|
"Você pode usar <kbd>Ctrl + Enter</kbd> para executar o código quando o foco estiver na\n"
|
|
"caixa de texto."
|
|
|
|
#: src/cargo/code-samples.md:24
|
|
msgid ""
|
|
"Most code samples are editable like shown above. A few code samples\n"
|
|
"are not editable for various reasons:"
|
|
msgstr ""
|
|
"A maioria dos exemplos de código são editáveis, como mostrado acima. Alguns exemplos de código\n"
|
|
"não são editáveis por vários motivos:"
|
|
|
|
#: src/cargo/code-samples.md:27
|
|
msgid ""
|
|
"* The embedded playgrounds cannot execute unit tests. Copy-paste the\n"
|
|
" code and open it in the real Playground to demonstrate unit tests."
|
|
msgstr ""
|
|
"* Os playgrounds incorporados não podem executar testes de unitários. Copie e cole o\n"
|
|
" código e abra-o no Playground real para demonstrar os testes unitários."
|
|
|
|
#: src/cargo/code-samples.md:30
|
|
msgid ""
|
|
"* The embedded playgrounds lose their state the moment you navigate\n"
|
|
" away from the page! This is the reason that the students should\n"
|
|
" solve the exercises using a local Rust installation or via the\n"
|
|
" Playground."
|
|
msgstr ""
|
|
"* Os playgrounds embutidos perdem seu estado no momento em que você navega\n"
|
|
" fora da página! Esta é a razão pela qual os alunos devem\n"
|
|
" resolver os exercícios usando uma instalação Rust local ou via\n"
|
|
" Playground."
|
|
|
|
#: src/cargo/running-locally.md:1
|
|
msgid "# Running Code Locally with Cargo"
|
|
msgstr "# Executando código localmente com o Cargo"
|
|
|
|
#: src/cargo/running-locally.md:3
|
|
msgid ""
|
|
"If you want to experiment with the code on your own system, then you will need\n"
|
|
"to first install Rust. Do this by following the [instructions in the Rust\n"
|
|
"Book][1]. This should give you a working `rustc` and `cargo`. At the time of\n"
|
|
"writing, the latest stable Rust release has these version numbers:"
|
|
msgstr ""
|
|
"Se você quiser experimentar o código em seu próprio sistema, precisará\n"
|
|
"primeiro instalar o Rust. Faça isso seguindo as [instruções][1].\n"
|
|
"Isso deve fornecer o `rustc` e o `cargo` funcionando. Ao escrever\n"
|
|
"Este curso, a última versão estável do Rust é:"
|
|
|
|
#: src/cargo/running-locally.md:8
|
|
msgid ""
|
|
"```shell\n"
|
|
"% rustc --version\n"
|
|
"rustc 1.61.0 (fe5b13d68 2022-05-18)\n"
|
|
"% cargo --version\n"
|
|
"cargo 1.61.0 (a028ae4 2022-04-29)\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"% rustc --version\n"
|
|
"rust 1.61.0 (fe5b13d68 2022-05-18)\n"
|
|
"% cargo --version\n"
|
|
"cargo 1.61.0 (a028ae4 2022-04-29)\n"
|
|
"```"
|
|
|
|
#: src/cargo/running-locally.md:15
|
|
msgid ""
|
|
"With this is in place, then follow these steps to build a Rust binary from one\n"
|
|
"of the examples in this training:"
|
|
msgstr ""
|
|
"Com isso finalizado, siga estas etapas para criar um binário Rust a partir de um\n"
|
|
"dos exemplos neste treinamento:"
|
|
|
|
#: src/cargo/running-locally.md:18
|
|
msgid "1. Click the \"Copy to clipboard\" button on the example you want to copy."
|
|
msgstr "1. Clique no botão \"Copiar para a área de transferência\" no exemplo que deseja copiar."
|
|
|
|
#: src/cargo/running-locally.md:20
|
|
msgid "2. Use `cargo new exercise` to create a new `exercise/` directory for your code:"
|
|
msgstr "2. Use `cargo new exercise` para criar um novo diretório `exercise/` para o seu código:"
|
|
|
|
#: src/cargo/running-locally.md:22
|
|
msgid ""
|
|
" ```shell\n"
|
|
" $ cargo new exercise\n"
|
|
" Created binary (application) `exercise` package\n"
|
|
" ```"
|
|
msgstr ""
|
|
|
|
#: src/cargo/running-locally.md:27
|
|
msgid "3. Navigate into `exercise/` and use `cargo run` to build and run your binary:"
|
|
msgstr "3. Navegue até `exercise/` e use `cargo run` para compilar e executar seu binário:"
|
|
|
|
#: src/cargo/running-locally.md:29
|
|
msgid ""
|
|
" ```shell\n"
|
|
" $ cd exercise\n"
|
|
" $ cargo run\n"
|
|
" Compiling exercise v0.1.0 (/home/mgeisler/tmp/exercise)\n"
|
|
" Finished dev [unoptimized + debuginfo] target(s) in 0.75s\n"
|
|
" Running `target/debug/exercise`\n"
|
|
" Hello, world!\n"
|
|
" ```"
|
|
msgstr ""
|
|
|
|
#: src/cargo/running-locally.md:38
|
|
msgid ""
|
|
"4. Replace the boiler-plate code in `src/main.rs` with your own code. For\n"
|
|
" example, using the example on the previous page, make `src/main.rs` look like"
|
|
msgstr ""
|
|
"4. Substitua o código de exemplo em `src/main.rs` pelo seu próprio código. Por\n"
|
|
" exemplo, usando o código da página anterior, faça `src/main.rs` parecer"
|
|
|
|
#: src/cargo/running-locally.md:41
|
|
msgid ""
|
|
" ```rust\n"
|
|
" fn main() {\n"
|
|
" println!(\"Edit me!\");\n"
|
|
" }\n"
|
|
" ```"
|
|
msgstr ""
|
|
|
|
#: src/cargo/running-locally.md:47
|
|
msgid "5. Use `cargo run` to build and run your updated binary:"
|
|
msgstr "5. Use `cargo run` para compilar e executar seu binário atualizado:"
|
|
|
|
#: src/cargo/running-locally.md:49
|
|
msgid ""
|
|
" ```shell\n"
|
|
" $ cargo run\n"
|
|
" Compiling exercise v0.1.0 (/home/mgeisler/tmp/exercise)\n"
|
|
" Finished dev [unoptimized + debuginfo] target(s) in 0.24s\n"
|
|
" Running `target/debug/exercise`\n"
|
|
" Edit me!\n"
|
|
" ```"
|
|
msgstr ""
|
|
|
|
#: src/cargo/running-locally.md:57
|
|
msgid ""
|
|
"6. Use `cargo check` to quickly check your project for errors, use `cargo build`\n"
|
|
" to compile it without running it. You will find the output in `target/debug/`\n"
|
|
" for a normal debug build. Use `cargo build --release` to produce an optimized\n"
|
|
" release build in `target/release/`."
|
|
msgstr ""
|
|
"6. Use `cargo check` para verificar rapidamente se há erros em seu projeto, use `cargo build`\n"
|
|
" para compilá-lo sem executá-lo. Você encontrará a saída em `target/debug/`\n"
|
|
" para uma compilação de depuração. Use `cargo build --release` para produzir um binário\n"
|
|
" otimizado em `target/release/`."
|
|
|
|
#: src/cargo/running-locally.md:62
|
|
msgid ""
|
|
"7. You can add dependencies for your project by editing `Cargo.toml`. When you\n"
|
|
" run `cargo` commands, it will automatically download and compile missing\n"
|
|
" dependencies for you."
|
|
msgstr ""
|
|
"7. Você pode adicionar dependências ao seu projeto editando `Cargo.toml`. Quando você\n"
|
|
" executar os comandos `cargo`, ele irá baixar e compilar automaticamente\n"
|
|
" dependências para você."
|
|
|
|
#: src/cargo/running-locally.md:66
|
|
msgid "[1]: https://doc.rust-lang.org/book/ch01-01-installation.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/book/ch01-01-installation.html"
|
|
|
|
#: src/cargo/running-locally.md:70
|
|
msgid ""
|
|
"Try to encourage the class participants to install Cargo and use a\n"
|
|
"local editor. It will make their life easier since they will have a\n"
|
|
"normal development environment."
|
|
msgstr ""
|
|
"Tente encorajar os participantes do curso a instalar o Cargo e usar um\n"
|
|
"editor local. Isso facilitará a vida deles, pois eles terão um\n"
|
|
"ambiente normal de desenvolvimento."
|
|
|
|
#: src/welcome-day-1.md:1
|
|
msgid "# Welcome to Day 1"
|
|
msgstr "# Bem-vindo ao Dia 1"
|
|
|
|
#: src/welcome-day-1.md:3
|
|
msgid ""
|
|
"This is the first day of Comprehensive Rust. We will cover a lot of ground\n"
|
|
"today:"
|
|
msgstr ""
|
|
"Este é o primeiro dia do Comprehensive Rust. Nós cobriremos muitos pontos\n"
|
|
"hoje:"
|
|
|
|
#: src/welcome-day-1.md:6
|
|
msgid ""
|
|
"* Basic Rust syntax: variables, scalar and compound types, enums, structs,\n"
|
|
" references, functions, and methods."
|
|
msgstr ""
|
|
"* Sintaxe básica do Rust: variáveis, tipos escalares e compostos, enums, structs,\n"
|
|
" referências, funções e métodos."
|
|
|
|
#: src/welcome-day-1.md:9
|
|
msgid ""
|
|
"* Memory management: stack vs heap, manual memory management, scope-based memory\n"
|
|
" management, and garbage collection."
|
|
msgstr ""
|
|
"* Gerenciamento de memória: stack versus heap, gerenciamento manual de memória, gerenciamento de memória\n"
|
|
" baseada em escopo e garbage collection (coleta de lixo)."
|
|
|
|
#: src/welcome-day-1.md:12
|
|
msgid "* Ownership: move semantics, copying and cloning, borrowing, and lifetimes."
|
|
msgstr "* Ownership: semântica de movimento, cópia e clonagem, empréstimo e tempos de vida."
|
|
|
|
#: src/welcome-day-1.md:16
|
|
msgid "Please remind the students that:"
|
|
msgstr "Lembre aos alunos que:"
|
|
|
|
#: src/welcome-day-1.md:18
|
|
msgid ""
|
|
"* They should ask questions when they get them, don't save them to the end.\n"
|
|
"* The class is meant to be interactive and discussions are very much encouraged!\n"
|
|
" * As an instructor, you should try to keep the discussions relevant, i.e.,\n"
|
|
" keep the related to how Rust does things vs some other language. It can be\n"
|
|
" hard to find the right balance, but err on the side of allowing discussions\n"
|
|
" since they engage people much more than one-way communication.\n"
|
|
"* The questions will likely mean that we talk about things ahead of the slides.\n"
|
|
" * This is perfectly okay! Repetition is an important part of learning. Remember\n"
|
|
" that the slides are just a support and you are free to skip them as you\n"
|
|
" like."
|
|
msgstr ""
|
|
"* Eles devem fazer perguntas na hora, não as guarde para o fim.\n"
|
|
"* A aula é para ser interativa e as discussões são muito encorajadas!\n"
|
|
" * Como instrutor, você deve tentar manter as discussões relevantes, ou seja,\n"
|
|
" mantenha o que é relacionado a como Rust faz as coisas versus alguma outra linguagem. Pode ser\n"
|
|
" difícil encontrar o equilíbrio certo, mas erra ao permitir discussões\n"
|
|
" uma vez que envolvem as pessoas muito mais do que uma comunicação unidirecional.\n"
|
|
"* As perguntas provavelmente parecerão que estamos falando sobre as coisas antes dos slides.\n"
|
|
" * Isso está perfeitamente OK! A repetição é uma parte importante do aprendizado. Lembre-se\n"
|
|
" que os slides são apenas um suporte e você está livre para ignorá-los quando\n"
|
|
" Quiser."
|
|
|
|
#: src/welcome-day-1.md:29
|
|
msgid ""
|
|
"The idea for the first day is to show _just enough_ of Rust to be able to speak\n"
|
|
"about the famous borrow checker. The way Rust handles memory is a major feature\n"
|
|
"and we should show students this right away."
|
|
msgstr ""
|
|
"A ideia para o primeiro dia é mostrar _apenas o suficiente_ de Rust para poder falar\n"
|
|
"sobre o famoso verificador de empréstimos. A maneira como o Rust lida com a memória é uma característica importante\n"
|
|
"e devemos mostrar isso aos alunos imediatamente."
|
|
|
|
#: src/welcome-day-1.md:33
|
|
msgid ""
|
|
"If you're teaching this in a classroom, this is a good place to go over the\n"
|
|
"schedule. We suggest splitting the day into two parts (following the slides):"
|
|
msgstr ""
|
|
"Se você estiver ensinando isso em uma sala de aula, este é um bom lugar para repassar\n"
|
|
"o cronograma. Sugerimos dividir o dia em duas partes (seguindo os slides):"
|
|
|
|
#: src/welcome-day-1.md:36
|
|
msgid ""
|
|
"* Morning: 9:00 to 12:00,\n"
|
|
"* Afternoon: 13:00 to 16:00."
|
|
msgstr ""
|
|
"* Manhã: 9h às 12h,\n"
|
|
"* Tarde: 13h às 16h."
|
|
|
|
#: src/welcome-day-1.md:39
|
|
msgid ""
|
|
"You can of course adjust this as necessary. Please make sure to include breaks,\n"
|
|
"we recommend a break every hour!"
|
|
msgstr ""
|
|
"É claro que você pode ajustar isso conforme necessário. Certifique-se de incluir pausas,\n"
|
|
" Recomendamos uma pausa a cada hora!"
|
|
|
|
#: src/welcome-day-1/what-is-rust.md:1
|
|
msgid "# What is Rust?"
|
|
msgstr "# O que é Rust?"
|
|
|
|
#: src/welcome-day-1/what-is-rust.md:3
|
|
msgid "Rust is a new programming language which had its [1.0 release in 2015][1]:"
|
|
msgstr "Rust é uma nova linguagem de programação que teve sua versão 1.0 lançada em 2015:"
|
|
|
|
#: src/welcome-day-1/what-is-rust.md:5
|
|
msgid ""
|
|
"* Rust is a statically compiled language in a similar role as C++\n"
|
|
" * `rustc` uses LLVM as its backend.\n"
|
|
"* Rust supports many [platforms and\n"
|
|
" architectures](https://doc.rust-lang.org/nightly/rustc/platform-support.html):\n"
|
|
" * x86, ARM, WebAssembly, ...\n"
|
|
" * Linux, Mac, Windows, ...\n"
|
|
"* Rust is used for a wide range of devices:\n"
|
|
" * firmware and boot loaders,\n"
|
|
" * smart displays,\n"
|
|
" * mobile phones,\n"
|
|
" * desktops,\n"
|
|
" * servers."
|
|
msgstr ""
|
|
"* Rust é uma linguagem compilada estaticamente e tem um papel semelhante ao C++\n"
|
|
" * `rustc` usa o LLVM como back-end.\n"
|
|
"* Rust suporta muitas [plataformas e\n"
|
|
" arquiteturas](https://doc.rust-lang.org/nightly/rustc/platform-support.html):\n"
|
|
" * x86, ARM, WebAssembly, ...\n"
|
|
" * Linux, Mac, Windows, ...\n"
|
|
"* Rust é usado em uma ampla gama de dispositivos:\n"
|
|
" * firmware e carregadores de boot,\n"
|
|
" * monitores inteligentes,\n"
|
|
" * celulares,\n"
|
|
" * desktops,\n"
|
|
" * servidores."
|
|
|
|
#: src/welcome-day-1/what-is-rust.md:21
|
|
msgid "Rust fits in the same area as C++:"
|
|
msgstr "Rust se encaixa na mesma área que C++:"
|
|
|
|
#: src/welcome-day-1/what-is-rust.md:23
|
|
msgid ""
|
|
"* High flexibility.\n"
|
|
"* High level of control.\n"
|
|
"* Can be scaled down to very constrained devices like mobile phones.\n"
|
|
"* Has no runtime or garbage collection.\n"
|
|
"* Focuses on reliability and safety without sacrificing performance."
|
|
msgstr ""
|
|
"* Alta flexibilidade.\n"
|
|
"* Alto nível de controle.\n"
|
|
"* Pode ser reduzido para dispositivos com menos poder computacional, como telefones celulares.\n"
|
|
"* Não tem runtime ou garbage collection.\n"
|
|
"* Concentra-se na confiabilidade e segurança sem sacrificar o desempenho."
|
|
|
|
#: src/welcome-day-1/what-is-rust.md:31
|
|
msgid "[1]: https://blog.rust-lang.org/2015/05/15/Rust-1.0.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/sync/struct.Arc.html"
|
|
|
|
#: src/hello-world.md:1
|
|
msgid "# Hello World!"
|
|
msgstr "# Olá Mundo!"
|
|
|
|
#: src/hello-world.md:3
|
|
msgid ""
|
|
"Let us jump into the simplest possible Rust program, a classic Hello World\n"
|
|
"program:"
|
|
msgstr "Vamos pular para o programa em Rust mais simples possível, um clássico Hello World:"
|
|
|
|
#: src/hello-world.md:6
|
|
msgid ""
|
|
"```rust\n"
|
|
"fn main() {\n"
|
|
" println!(\"Hello 🌍!\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/hello-world.md:12
|
|
msgid "What you see:"
|
|
msgstr "O que você vê:"
|
|
|
|
#: src/hello-world.md:14
|
|
msgid ""
|
|
"* Functions are introduced with `fn`.\n"
|
|
"* Blocks are delimited by curly braces like in C and C++.\n"
|
|
"* The `main` function is the entry point of the program.\n"
|
|
"* Rust has hygienic macros, `println!` is an example of this.\n"
|
|
"* Rust strings are UTF-8 encoded and can contain any Unicode character."
|
|
msgstr ""
|
|
"* Funções são introduzidas com `fn`.\n"
|
|
"* Os blocos são delimitados por chaves como em C e C++.\n"
|
|
"* A função `main` é o ponto de entrada do programa.\n"
|
|
"* Rust tem macros, `println!` é um exemplo disso.\n"
|
|
"* As strings Rust são codificadas em UTF-8 e podem conter qualquer caractere Unicode."
|
|
|
|
#: src/hello-world.md:22
|
|
msgid ""
|
|
"This slide tries to make the students comfortable with Rust code. They will see\n"
|
|
"a ton of it over the next four days so we start small with something familiar."
|
|
msgstr ""
|
|
"Este slide tenta deixar os alunos familiarizados com o código em Rust. Eles vão ver\n"
|
|
"uma tonelada nos próximos quatro dias, então começamos pequeno e com algo familiar."
|
|
|
|
#: src/hello-world.md:27
|
|
msgid ""
|
|
"* Rust is very much like other languages in the C/C++/Java tradition. It is\n"
|
|
" imperative (not functional) and it doesn't try to reinvent things unless\n"
|
|
" absolutely necessary."
|
|
msgstr ""
|
|
"* Rust é muito parecido com outras linguagens na tradição do C/C++/Java. É\n"
|
|
" imperativo (não funcional) e não tenta reinventar as coisas a menos que\n"
|
|
" absolutamente necessário."
|
|
|
|
#: src/hello-world.md:31
|
|
msgid "* Rust is modern with full support for things like Unicode."
|
|
msgstr "* Rust é moderno com amplo suporte para coisas como Unicode."
|
|
|
|
#: src/hello-world.md:33
|
|
msgid ""
|
|
"* Rust uses macros for situations where you want to have a variable number of\n"
|
|
" arguments (no function [overloading](basic-syntax/functions-interlude.md))."
|
|
msgstr ""
|
|
"* Rust usa macros para situações em que você deseja ter um número variável de\n"
|
|
" argumentos (sem [overloading](sintaxe-básica/funções-interlude.md) de funções)."
|
|
|
|
#: src/hello-world/small-example.md:1
|
|
msgid "# Small Example"
|
|
msgstr "# Pequeno Exemplo"
|
|
|
|
#: src/hello-world/small-example.md:3
|
|
msgid "Here is a small example program in Rust:"
|
|
msgstr "Aqui está um pequeno programa de exemplo em Rust:"
|
|
|
|
#: src/hello-world/small-example.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() { // Program entry point\n"
|
|
" let mut x: i32 = 6; // Mutable variable binding\n"
|
|
" print!(\"{x}\"); // Macro for printing, like printf\n"
|
|
" while x != 1 { // No parenthesis around expression\n"
|
|
" if x % 2 == 0 { // Math like in other languages\n"
|
|
" x = x / 2;\n"
|
|
" } else {\n"
|
|
" x = 3 * x + 1;\n"
|
|
" }\n"
|
|
" print!(\" -> {x}\");\n"
|
|
" }\n"
|
|
" println!();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"fn main() { // Ponto de entrada do programa\n"
|
|
" let mut x: i32 = 6; // Atribuição de uma variável mutável\n"
|
|
" print!(\"{x}\"); // Macro para escrever na tela, como printf\n"
|
|
" while x != 1 { // Sem parênteses ao redor de expressões\n"
|
|
" if x % 2 == 0 { // Matemática como em outras linguagens\n"
|
|
" x = x / 2;\n"
|
|
" } else {\n"
|
|
" x = 3 * x + 1;\n"
|
|
" }\n"
|
|
" print!(\" -> {x}\");\n"
|
|
" }\n"
|
|
" println!();\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/hello-world/small-example.md:23
|
|
msgid ""
|
|
"The code implements the Collatz conjecture: it is believed that the loop will\n"
|
|
"always end, but this is not yet proved. Edit the code and play with different\n"
|
|
"inputs."
|
|
msgstr ""
|
|
"O código implementa a conjectura de Collatz: acredita-se que o loop\n"
|
|
"sempre termina, mas isso ainda não está provado. Edite o código e tente diferentes\n"
|
|
"entradas."
|
|
|
|
#: src/hello-world/small-example.md:29
|
|
msgid ""
|
|
"* Explain that all variables are statically typed. Try removing `i32` to trigger\n"
|
|
" type inference. Try with `i8` instead and trigger a runtime integer overflow."
|
|
msgstr ""
|
|
"* Explique que todas as variáveis são estaticamente tipadas. Tente remover `i32` para acionar a\n"
|
|
" inferência de tipo. Em vez disso, tente com `i8` e dispare um estouro de número inteiro em tempo de execução."
|
|
|
|
#: src/hello-world/small-example.md:32
|
|
msgid "* Change `let mut x` to `let x`, discuss the compiler error."
|
|
msgstr "* Altere `let mut x` para `let x`, discuta o erro do compilador."
|
|
|
|
#: src/hello-world/small-example.md:34
|
|
msgid ""
|
|
"* Show how `print!` gives a compilation error if the arguments don't match the\n"
|
|
" format string."
|
|
msgstr ""
|
|
"* Mostre como `print!` gera um erro de compilação se os argumentos não combinam com a\n"
|
|
" sequência de formato."
|
|
|
|
#: src/hello-world/small-example.md:37
|
|
msgid ""
|
|
"* Show how you need to use `{}` as a placeholder if you want to print an\n"
|
|
" expression which is more complex than just a single variable."
|
|
msgstr ""
|
|
"* Mostre como você precisa usar `{}` como espaço reservado se quiser imprimir uma\n"
|
|
" expressão que é mais complexa do que apenas uma única variável."
|
|
|
|
#: src/hello-world/small-example.md:40
|
|
msgid ""
|
|
"* Show the students the standard library, show them how to search for `std::fmt`\n"
|
|
" which has the rules of the formatting mini-language. It's important that the\n"
|
|
" students become familiar with searching in the standard library."
|
|
msgstr ""
|
|
"* Mostre aos alunos a biblioteca padrão, mostre como pesquisar `std::fmt`, \n"
|
|
" que possui as regras da mini-linguagem de formatação. É importante que\n"
|
|
" os alunos se familiarizem com pesquisas na biblioteca padrão."
|
|
|
|
#: src/why-rust.md:1
|
|
msgid "# Why Rust?"
|
|
msgstr "# Por que Rust?"
|
|
|
|
#: src/why-rust.md:3
|
|
msgid "Some unique selling points of Rust:"
|
|
msgstr "Alguns pontos exclusivos do Rust:"
|
|
|
|
#: src/why-rust.md:5
|
|
msgid ""
|
|
"* Compile time memory safety.\n"
|
|
"* Lack of undefined runtime behavior.\n"
|
|
"* Modern language features."
|
|
msgstr ""
|
|
"* Segurança de memória em tempo de compilação.\n"
|
|
"* Sem comportamento indefinido em tempo de execução.\n"
|
|
"* Recursos de linguagem de programação modernas."
|
|
|
|
#: src/why-rust.md:11
|
|
msgid ""
|
|
"Make sure to ask the class which languages they have experience with. Depending\n"
|
|
"on the answer you can highlight different features of Rust:"
|
|
msgstr ""
|
|
"Certifique-se de perguntar à classe com quais linguagens de programação eles têm experiência. Dependendo\n"
|
|
"da resposta você pode destacar diferentes características do Rust:"
|
|
|
|
#: src/why-rust.md:14
|
|
msgid ""
|
|
"* Experience with C or C++: Rust eliminates a whole class of _runtime errors_\n"
|
|
" via the borrow checker. You get performance like in C and C++, but you don't\n"
|
|
" have the memory unsafety issues. In addition, you get a modern language with\n"
|
|
" constructs like pattern matching and built-in dependency management."
|
|
msgstr ""
|
|
"* Experiência com C ou C++: Rust elimina toda uma classe de _erros de tempo de execução_\n"
|
|
" através do verificador de empréstimo. Você obtém desempenho como em C e C++, mas não\n"
|
|
" tem problemas de insegurança de memória. Além disso, você obtém uma linguagem moderna com\n"
|
|
" construções como correspondência de padrões e gerenciamento de dependências integrado."
|
|
|
|
#: src/why-rust.md:19
|
|
msgid ""
|
|
"* Experience with Java, Go, Python, JavaScript...: You get the same memory safety\n"
|
|
" as in those languages, plus a similar high-level language feeling. In addition\n"
|
|
" you get fast and predictable performance like C and C++ (no garbage collector)\n"
|
|
" as well as access to low-level hardware (should you need it)"
|
|
msgstr ""
|
|
"* Experiência com Java, Go, Python, JavaScript...: Você obtém a mesma segurança de memória\n"
|
|
" como nessas linguagens, além de um sentimento semelhante ao de linguagem de alto nível. Além disso\n"
|
|
" você obtém desempenho rápido e previsível como C e C++ (sem coletor de lixo)\n"
|
|
" bem como acesso a hardware de baixo nível (caso você precise)"
|
|
|
|
#: src/why-rust/compile-time.md:1
|
|
msgid "# Compile Time Guarantees"
|
|
msgstr "# Garantias de tempo de compilação"
|
|
|
|
#: src/why-rust/compile-time.md:3
|
|
msgid "Static memory management at compile time:"
|
|
msgstr "Gerenciamento de memória estática em tempo de compilação:"
|
|
|
|
#: src/why-rust/compile-time.md:5
|
|
msgid ""
|
|
"* No uninitialized variables.\n"
|
|
"* No memory leaks (_mostly_, see notes).\n"
|
|
"* No double-frees.\n"
|
|
"* No use-after-free.\n"
|
|
"* No `NULL` pointers.\n"
|
|
"* No forgotten locked mutexes.\n"
|
|
"* No data races between threads.\n"
|
|
"* No iterator invalidation."
|
|
msgstr ""
|
|
"* Nenhuma variável não inicializada.\n"
|
|
"* Sem vazamentos de memória (_quase_, veja as notas).\n"
|
|
"* Sem double-free.\n"
|
|
"* Sem 'user-afer-free'.\n"
|
|
"* Sem ponteiros `NULL`.\n"
|
|
"* Sem mutexes bloqueados esquecidos.\n"
|
|
"* Sem condições de corridas threads.\n"
|
|
"* Nenhuma invalidação de iteradores."
|
|
|
|
#: src/why-rust/compile-time.md:16
|
|
msgid ""
|
|
"It is possible to produce memory leaks in (safe) Rust. Some examples\n"
|
|
"are:"
|
|
msgstr ""
|
|
"É possível produzir vazamentos de memória no Rust seguro. Alguns exemplos\n"
|
|
"são:"
|
|
|
|
#: src/why-rust/compile-time.md:19
|
|
msgid ""
|
|
"* You can for use [`Box::leak`] to leak a pointer. A use of this could\n"
|
|
" be to get runtime-initialized and runtime-sized static variables\n"
|
|
"* You can use [`std::mem::forget`] to make the compiler \"forget\" about\n"
|
|
" a value (meaning the destructor is never run).\n"
|
|
"* You can also accidentally create a [reference cycle] with `Rc` or\n"
|
|
" `Arc`.\n"
|
|
"* In fact, some will consider infinitely populating a collection a memory\n"
|
|
" leak and Rust does not protect from those."
|
|
msgstr ""
|
|
"* Você pode usar [`Box::leak`] para vazar um ponteiro. Um uso disso poderia\n"
|
|
" ser para obter variáveis estáticas inicializadas e dimensionadas em tempo de execução\n"
|
|
"* Você pode usar [`std::mem::forget`] para fazer o compilador \"esquecer\" sobre\n"
|
|
" um valor (o que significa que o destrutor nunca é executado).\n"
|
|
"* Você também pode criar acidentalmente um [referência cíclica] com `Rc` ou\n"
|
|
" `Arc`.\n"
|
|
"* Na verdade, alguns considerarão preencher infinitamente uma coleção\n"
|
|
" como vazamento de memória e Rust não protege disso."
|
|
|
|
#: src/why-rust/compile-time.md:28
|
|
msgid ""
|
|
"For the purpose of this course, \"No memory leaks\" should be understood\n"
|
|
"as \"Pretty much no *accidental* memory leaks\"."
|
|
msgstr ""
|
|
"Para o propósito deste curso, \"Sem vazamentos de memória\" deve ser entendido\n"
|
|
"como \"Praticamente sem vazamentos de memória *acidentais*\"."
|
|
|
|
#: src/why-rust/compile-time.md:31
|
|
msgid ""
|
|
"[`Box::leak`]: https://doc.rust-lang.org/std/boxed/struct.Box.html#method.leak\n"
|
|
"[`std::mem::forget`]: https://doc.rust-lang.org/std/mem/fn.forget.html\n"
|
|
"[reference cycle]: https://doc.rust-lang.org/book/ch15-06-reference-cycles.html"
|
|
msgstr ""
|
|
"[`Box::leak`]: https://doc.rust-lang.org/std/boxed/struct.Box.html#method.leak\n"
|
|
"[`std::mem::forget`]: https://doc.rust-lang.org/std/mem/fn.forget.html\n"
|
|
"[referência cíclica]: https://doc.rust-lang.org/book/ch15-06-reference-cycles.html"
|
|
|
|
#: src/why-rust/runtime.md:1
|
|
msgid "# Runtime Guarantees"
|
|
msgstr "# Garantias de tempo de execução"
|
|
|
|
#: src/why-rust/runtime.md:3
|
|
msgid "No undefined behavior at runtime:"
|
|
msgstr "Nenhum comportamento indefinido em tempo de execução:"
|
|
|
|
#: src/why-rust/runtime.md:5
|
|
msgid ""
|
|
"* Array access is bounds checked.\n"
|
|
"* Integer overflow is defined."
|
|
msgstr ""
|
|
"* O acesso à arrays tem limites verificados.\n"
|
|
"* Estouro de números inteiros é definido."
|
|
|
|
#: src/why-rust/runtime.md:12
|
|
msgid ""
|
|
"* Integer overflow is defined via a compile-time flag. The options are\n"
|
|
" either a panic (a controlled crash of the program) or wrap-around\n"
|
|
" semantics. By default, you get panics in debug mode (`cargo build`)\n"
|
|
" and wrap-around in release mode (`cargo build --release`)."
|
|
msgstr ""
|
|
"* O estouro de números inteiros é definido por meio de um sinalizador de tempo de compilação. As opções são\n"
|
|
" ou um pânico (uma falha controlada do programa) ou semântica\n"
|
|
" wrap-around. Por padrão, você obtém pânico no modo de depuração (`cargo build`)\n"
|
|
" e wrap-around no modo de produção (`cargo build --release`)."
|
|
|
|
#: src/why-rust/runtime.md:17
|
|
msgid ""
|
|
"* Bounds checking cannot be disabled with a compiler flag. It can also\n"
|
|
" not be disabled directly with the `unsafe` keyword. However,\n"
|
|
" `unsafe` allows you to call functions such as `slice::get_unchecked`\n"
|
|
" which does not do bounds checking."
|
|
msgstr ""
|
|
"* A verificação de limites não pode ser desativada com um sinalizador de compilador. Também não\n"
|
|
" pode ser desativado diretamente com a palavra-chave `unsafe`. No entanto,\n"
|
|
" `unsafe` permite que você chame funções como `slice::get_unchecked`\n"
|
|
" que não faz verificação de limites."
|
|
|
|
#: src/why-rust/modern.md:1
|
|
msgid "# Modern Features"
|
|
msgstr "# Recursos modernos"
|
|
|
|
#: src/why-rust/modern.md:3
|
|
msgid "Rust is built with all the experience gained in the last 40 years."
|
|
msgstr "O Rust é construído com toda a experiência adquirida nos últimos 40 anos."
|
|
|
|
#: src/why-rust/modern.md:5
|
|
msgid "## Language Features"
|
|
msgstr "## Características da linguagem"
|
|
|
|
#: src/why-rust/modern.md:7
|
|
msgid ""
|
|
"* Enums and pattern matching.\n"
|
|
"* Generics.\n"
|
|
"* No overhead FFI.\n"
|
|
"* Zero-cost abstractions."
|
|
msgstr ""
|
|
"* Enums e correspondência de padrões.\n"
|
|
"* Generics.\n"
|
|
"* FFI sem overhead.\n"
|
|
"* Abstrações de custo zero."
|
|
|
|
#: src/why-rust/modern.md:12
|
|
msgid "## Tooling"
|
|
msgstr "## Ferramentas"
|
|
|
|
#: src/why-rust/modern.md:14
|
|
msgid ""
|
|
"* Great compiler errors.\n"
|
|
"* Built-in dependency manager.\n"
|
|
"* Built-in support for testing.\n"
|
|
"* Excellent Language Server Protocol support."
|
|
msgstr ""
|
|
"* Excelentes mensagens de erro do compilador.\n"
|
|
"* Gerenciador de dependências integrado.\n"
|
|
"* Suporte integrado para testes.\n"
|
|
"* Excelente suporte ao protocolo de servidor de linguagem (LSP)."
|
|
|
|
#: src/why-rust/modern.md:23
|
|
msgid ""
|
|
"* Zero-cost abstractions, similar to C++, means that you don't have to 'pay'\n"
|
|
" for higher-level programming constructs with memory or CPU. For example,\n"
|
|
" writing a loop using `for` should result in roughly the same low level\n"
|
|
" instructions as using the `.iter().fold()` construct."
|
|
msgstr ""
|
|
"* Abstrações de custo zero, semelhantes ao C++, significa que você não precisa 'pagar'\n"
|
|
" com memória ou CPU por construções de programação de alto nível. Por exemplo,\n"
|
|
" escrever um loop usando `for` deve resultar aproximadamente nos mesmas instruções\n"
|
|
" de baixo nível como ao usar a construção `.iter().fold()`."
|
|
|
|
#: src/why-rust/modern.md:28
|
|
msgid ""
|
|
"* It may be worth mentioning that Rust enums are 'Algebraic Data Types', also\n"
|
|
" known as 'sum types', which allow the type system to express things like\n"
|
|
" `Option<T>` and `Result<T, E>`."
|
|
msgstr ""
|
|
"* Pode valer a pena mencionar que enums em Rust também são 'tipos de dados algébricos', também\n"
|
|
" conhecidos como 'tipos de soma', os quais permitem que o sistema de tipos expresse coisas como\n"
|
|
" `Option<T>` e `Result<T, E>`."
|
|
|
|
#: src/why-rust/modern.md:32
|
|
msgid ""
|
|
"* Remind people to read the errors --- many developers have gotten used to\n"
|
|
" ignore lengthy compiler output. The Rust compiler is significantly more\n"
|
|
" talkative than other compilers. It will often provide you with _actionable_\n"
|
|
" feedback, ready to copy-paste into your code."
|
|
msgstr ""
|
|
"* Lembre as pessoas de lerem os erros --- muitos desenvolvedores se acostumaram\n"
|
|
" a ignorar as longas saída do compilador. O compilador Rust é significativamente mais\n"
|
|
" verboso do que outros compiladores. Muitas vezes, ele fornecerá a você feedback\n"
|
|
" _utilizável_, pronto para copiar e colar em seu código."
|
|
|
|
#: src/why-rust/modern.md:37
|
|
msgid ""
|
|
"* The Rust standard library is small compared to languages like Java, Python,\n"
|
|
" and Go. Rust does not come with several things you might consider standard and\n"
|
|
" essential:"
|
|
msgstr ""
|
|
"* A biblioteca padrão do Rust é pequena comparada a linguagens como Java, Python,\n"
|
|
" e Go. Rust não vem com várias coisas que você pode considerar padrão e\n"
|
|
" essencial:"
|
|
|
|
#: src/why-rust/modern.md:41
|
|
msgid ""
|
|
" * a random number generator, but see [rand].\n"
|
|
" * support for SSL or TLS, but see [rusttls].\n"
|
|
" * support for JSON, but see [serde_json]."
|
|
msgstr ""
|
|
" * um gerador de números aleatórios, mas veja [rand].\n"
|
|
" * suporte para SSL ou TLS, mas consulte [rusttls].\n"
|
|
" * suporte para JSON, mas consulte [serde_json]."
|
|
|
|
#: src/why-rust/modern.md:45
|
|
msgid ""
|
|
" The reasoning behind this is that functionality in the standard library cannot\n"
|
|
" go away, so it has to be very stable. For the examples above, the Rust\n"
|
|
" community is still working on finding the best solution --- and perhaps there\n"
|
|
" isn't a single \"best solution\" for some of these things."
|
|
msgstr ""
|
|
" O raciocínio por trás disso é que a funcionalidades na biblioteca padrão não podem\n"
|
|
" ser descartadas, portanto têm que ser muito estáveis. Para os exemplos acima, a comunidade\n"
|
|
" Rust ainda está trabalhando para encontrar a melhor solução --- e talvez não\n"
|
|
" haja uma única \"melhor solução\" para algumas dessas coisas."
|
|
|
|
#: src/why-rust/modern.md:50
|
|
msgid ""
|
|
" Rust comes with a built-in package manager in the form of Cargo and this makes\n"
|
|
" it trivial to download and compile third-party crates. A consequence of this\n"
|
|
" is that the standard library can be smaller."
|
|
msgstr ""
|
|
" O Rust vem com um gerenciador de pacotes embutido na forma de Cargo e isso torna\n"
|
|
" trivial baixar e compilar crates de terceiros. Uma consequência disso\n"
|
|
" é que a biblioteca padrão pode ser menor."
|
|
|
|
#: src/why-rust/modern.md:54
|
|
msgid ""
|
|
" Discovering good third-party crates can be a problem. Sites like\n"
|
|
" <https://lib.rs/> help with this by letting you compare health metrics for\n"
|
|
" crates to find a good and trusted one.\n"
|
|
" \n"
|
|
"* [rust-analyzer] is a well supported LSP implementation used in major\n"
|
|
" IDEs and text editors."
|
|
msgstr ""
|
|
" Descobrir bons crates de terceiros pode ser um problema. Sites como\n"
|
|
" <https://lib.rs/> ajudam com isso, permitindo que você compare métricas para\n"
|
|
" para encontrar um crate bom e confiável.\n"
|
|
" \n"
|
|
"* [rust-analyzer] é uma implementação LSP bem suportada usada em grandes\n"
|
|
" IDEs e editores de texto."
|
|
|
|
#: src/why-rust/modern.md:61
|
|
msgid ""
|
|
"[rand]: https://docs.rs/rand/\n"
|
|
"[rusttls]: https://docs.rs/rustls/\n"
|
|
"[serde_json]: https://docs.rs/serde_json/\n"
|
|
"[rust-analyzer]: https://rust-analyzer.github.io/"
|
|
msgstr ""
|
|
"[rand]: https://docs.rs/rand/\n"
|
|
"[rusttls]: https://docs.rs/rustls/\n"
|
|
"[serde_json]: https://docs.rs/serde_json/\n"
|
|
"[rust-analyzer]: https://rust-analyzer.github.io/"
|
|
|
|
#: src/basic-syntax.md:1
|
|
msgid "# Basic Syntax"
|
|
msgstr "# Sintaxe Básica"
|
|
|
|
#: src/basic-syntax.md:3
|
|
msgid "Much of the Rust syntax will be familiar to you from C, C++ or Java:"
|
|
msgstr "Grande parte da sintaxe do Rust será familiar para você em C ou C++:"
|
|
|
|
#: src/basic-syntax.md:5
|
|
msgid ""
|
|
"* Blocks and scopes are delimited by curly braces.\n"
|
|
"* Line comments are started with `//`, block comments are delimited by `/* ...\n"
|
|
" */`.\n"
|
|
"* Keywords like `if` and `while` work the same.\n"
|
|
"* Variable assignment is done with `=`, comparison is done with `==`."
|
|
msgstr ""
|
|
"* Blocos e escopos são delimitados por chaves.\n"
|
|
"* Comentários de linha são iniciados com `//`, comentários de bloco são delimitados por `/* ...\n"
|
|
" */`.\n"
|
|
"* Palavras-chave como `if` e `while` funcionam da mesma forma.\n"
|
|
"* A atribuição de variáveis é feita com `=`, a comparação é feita com `==`."
|
|
|
|
#: src/basic-syntax/scalar-types.md:1
|
|
msgid "# Scalar Types"
|
|
msgstr "# Tipos escalares"
|
|
|
|
#: src/basic-syntax/scalar-types.md:3
|
|
msgid ""
|
|
"| | Types | Literals |\n"
|
|
"|------------------------|--------------------------------------------|-------------------------------|\n"
|
|
"| Signed integers | `i8`, `i16`, `i32`, `i64`, `i128`, `isize` | `-10`, `0`, `1_000`, `123i64` |\n"
|
|
"| Unsigned integers | `u8`, `u16`, `u32`, `u64`, `u128`, `usize` | `0`, `123`, `10u16` |\n"
|
|
"| Floating point numbers | `f32`, `f64` | `3.14`, `-10.0e20`, `2f32` |\n"
|
|
"| Strings | `&str` | `\"foo\"`, `r#\"\\\\\"#` |\n"
|
|
"| Unicode scalar values | `char` | `'a'`, `'α'`, `'∞'` |\n"
|
|
"| Byte strings | `&[u8]` | `b\"abc\"`, `br#\" \" \"#` |\n"
|
|
"| Booleans | `bool` | `true`, `false` |"
|
|
msgstr ""
|
|
"| | Tipos | Literais |\n"
|
|
"|---------------------------|--------------------------------------------|-------------------------------|\n"
|
|
"| Inteiro sinalizado | `i8`, `i16`, `i32`, `i64`, `i128`, `isize` | `-10`, `0`, `1_000`, `123i64` |\n"
|
|
"| Inteiro não sinalizado | `u8`, `u16`, `u32`, `u64`, `u128`, `usize` | `0`, `123`, `10u16` |\n"
|
|
"| Ponto flutuante | `f32`, `f64` | `3.14`, `-10.0e20`, `2f32` |\n"
|
|
"| Strings | `&str` | `\"foo\"`, `r#\"\\\\\"#` |\n"
|
|
"| Valores Unicode escalares | `char` | `'a'`, `'α'`, `'∞'` |\n"
|
|
"| Byte strings | `&[u8]` | `b\"abc\"`, `br#\" \" \"#` |\n"
|
|
"| Booleanos | `bool` | `true`, `false` |"
|
|
|
|
#: src/basic-syntax/scalar-types.md:13
|
|
msgid "The types have widths as follows:"
|
|
msgstr "Os tipos têm tamanhos como se segue:"
|
|
|
|
#: src/basic-syntax/scalar-types.md:15
|
|
msgid ""
|
|
"* `iN`, `uN`, and `fN` are _N_ bits wide,\n"
|
|
"* `isize` and `usize` are the width of a pointer,\n"
|
|
"* `char` is 32 bit wide,\n"
|
|
"* `bool` is 8 bit wide."
|
|
msgstr ""
|
|
"* `iN`, `uN` e `fN` são _N_ bits,\n"
|
|
"* `isize` e `usize` são o tamanho de um ponteiro,\n"
|
|
"* `char` tem 32 bits,\n"
|
|
"* `bool` tem 8 bits."
|
|
|
|
#: src/basic-syntax/compound-types.md:1
|
|
msgid "# Compound Types"
|
|
msgstr "# Tipos compostos"
|
|
|
|
#: src/basic-syntax/compound-types.md:3
|
|
msgid ""
|
|
"| | Types | Literals |\n"
|
|
"|--------|-------------------------------|-----------------------------------|\n"
|
|
"| Arrays | `[T; N]` | `[20, 30, 40]`, `[0; 3]` |\n"
|
|
"| Tuples | `()`, `(T,)`, `(T1, T2)`, ... | `()`, `('x',)`, `('x', 1.2)`, ... |"
|
|
msgstr ""
|
|
"| | Tipos | Literais |\n"
|
|
"|--------|-------------------------------|-----------------------------------|\n"
|
|
"| Arrays | `[T; N]` | `[20, 30, 40]`, `[0; 3]` |\n"
|
|
"| Tuplas | `()`, `(T,)`, `(T1, T2)`, ... | `()`, `('x',)`, `('x', 1.2)`, ... |"
|
|
|
|
#: src/basic-syntax/compound-types.md:8
|
|
msgid "Array assignment and access:"
|
|
msgstr "Atribuição e acesso a arrays:"
|
|
|
|
#: src/basic-syntax/compound-types.md:10
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut a: [i8; 10] = [42; 10];\n"
|
|
" a[5] = 0;\n"
|
|
" println!(\"a: {:?}\", a);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut a: [i8; 10] = [42; 10];\n"
|
|
" a[5] = 0;\n"
|
|
" println!(\"a: {:?}\", a);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/basic-syntax/compound-types.md:18
|
|
msgid "Tuple assignment and access:"
|
|
msgstr "Atribuição e acesso a tuplas:"
|
|
|
|
#: src/basic-syntax/compound-types.md:20
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let t: (i8, bool) = (7, true);\n"
|
|
" println!(\"1st index: {}\", t.0);\n"
|
|
" println!(\"2nd index: {}\", t.1);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/compound-types.md:32
|
|
msgid "Arrays:"
|
|
msgstr "Arrays:"
|
|
|
|
#: src/basic-syntax/compound-types.md:34
|
|
msgid ""
|
|
"* Arrays have elements of the same type, `T`, and length, `N`, which is a compile-time constant.\n"
|
|
" Note that the length of the array is *part of its type*, which means that `[u8; 3]` and\n"
|
|
" `[u8; 4]` are considered two different types."
|
|
msgstr ""
|
|
"* Arrays possuem elementos do mesmo tipo, `T`, e comprimento, `N`, que é uma constante de tempo de compilação.\n"
|
|
" Observe que o comprimento do array é *parte de seu tipo*, o que significa que `[u8; 3]` e\n"
|
|
" `[u8; 4]` são considerados dois tipos diferentes."
|
|
|
|
#: src/basic-syntax/compound-types.md:38
|
|
msgid "* We can use literals to assign values to arrays."
|
|
msgstr "* Podemos usar literais para atribuir valores a arrays."
|
|
|
|
#: src/basic-syntax/compound-types.md:40
|
|
msgid ""
|
|
"* In the main function, the print statement asks for the debug implementation with the `?` format\n"
|
|
" parameter: `{}` gives the default output, `{:?}` gives the debug output. We\n"
|
|
" could also have used `{a}` and `{a:?}` without specifying the value after the\n"
|
|
" format string."
|
|
msgstr ""
|
|
"* Na função `main`, a instrução print solicita a implementação de depuração com um `?` no\n"
|
|
" formatador: `{}` fornece a saída padrão, `{:?}` fornece a saída de depuração. Nós\n"
|
|
" também poderíamos ter usado `{a}` e `{a:?}` sem especificar o valor após a\n"
|
|
" sequência de formatadores."
|
|
|
|
#: src/basic-syntax/compound-types.md:45
|
|
msgid "* Adding `#`, eg `{a:#?}`, invokes a \"pretty printing\" format, which can be easier to read."
|
|
msgstr "* Adicionando `#`, por exemplo `{a:#?}`, chama um formatado de \"impressão bonita\", que pode ser mais fácil de ler."
|
|
|
|
#: src/basic-syntax/compound-types.md:47
|
|
msgid "Tuples:"
|
|
msgstr "Tuplas:"
|
|
|
|
#: src/basic-syntax/compound-types.md:49
|
|
msgid "* Like arrays, tuples have a fixed length."
|
|
msgstr "* Assim como os arrays, as tuplas têm um comprimento fixo."
|
|
|
|
#: src/basic-syntax/compound-types.md:51
|
|
msgid "* Tuples group together values of different types into a compound type."
|
|
msgstr "* As tuplas agrupam valores de tipos diferentes em um tipo composto."
|
|
|
|
#: src/basic-syntax/compound-types.md:53
|
|
msgid "* Fields of a tuple can be accessed by the period and the index of the value, e.g. `t.0`, `t.1`."
|
|
msgstr "* Os campos de uma tupla podem ser acessados pelo 'ponto' e pelo índice do valor, por exemplo `t.0`, `t.1`."
|
|
|
|
#: src/basic-syntax/compound-types.md:55
|
|
msgid ""
|
|
"* The empty tuple `()` is also known as the \"unit type\". It is both a type, and\n"
|
|
" the only valid value of that type - that is to say both the type and its value\n"
|
|
" are expressed as `()`. It is used to indicate, for example, that a function or\n"
|
|
" expression has no return value, as we'll see in a future slide. \n"
|
|
" * You can think of it as `void` that can be familiar to you from other \n"
|
|
" programming languages."
|
|
msgstr ""
|
|
"* A tupla vazia `()` também é conhecida como \"tipo unitário\". É um tipo e\n"
|
|
" o único valor válido desse tipo - ou seja, o tipo e seu valor\n"
|
|
" são expressos como `()`. É usado para indicar, por exemplo, que uma função ou\n"
|
|
" uma expressão não tem valor de retorno, como veremos em um próximo slide.\n"
|
|
" * Você pode pensar nisso como um 'vazio' que pode ser familiar para você de outras\n"
|
|
" linguagens de programação."
|
|
|
|
#: src/basic-syntax/references.md:1
|
|
msgid "# References"
|
|
msgstr "# Referências"
|
|
|
|
#: src/basic-syntax/references.md:3
|
|
msgid "Like C++, Rust has references:"
|
|
msgstr "Como C++, Rust tem referências:"
|
|
|
|
#: src/basic-syntax/references.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut x: i32 = 10;\n"
|
|
" let ref_x: &mut i32 = &mut x;\n"
|
|
" *ref_x = 20;\n"
|
|
" println!(\"x: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/references.md:14
|
|
msgid "Some notes:"
|
|
msgstr "Algumas notas:"
|
|
|
|
#: src/basic-syntax/references.md:16
|
|
msgid ""
|
|
"* We must dereference `ref_x` when assigning to it, similar to C and C++ pointers.\n"
|
|
"* Rust will auto-dereference in some cases, in particular when invoking\n"
|
|
" methods (try `ref_x.count_ones()`).\n"
|
|
"* References that are declared as `mut` can be bound to different values over their lifetime."
|
|
msgstr ""
|
|
"* Devemos desreferenciar `ref_x` ao atribuir um valor, semelhante à ponteiros em C e C++.\n"
|
|
"* Rust desreferenciará automaticamente em alguns casos, em particular ao invocar\n"
|
|
" métodos (tente `ref_x.count_ones()`).\n"
|
|
"* As referências que são declaradas como `mut` podem ser vinculadas a diferentes valores ao longo de seu tempo de vida."
|
|
|
|
#: src/basic-syntax/references.md:21
|
|
msgid ""
|
|
"<details>\n"
|
|
"Key points:"
|
|
msgstr ""
|
|
"<details>\n"
|
|
"Pontos chave:"
|
|
|
|
#: src/basic-syntax/references.md:24
|
|
msgid ""
|
|
"* Be sure to note the difference between `let mut ref_x: &i32` and `let ref_x:\n"
|
|
" &mut i32`. The first one represents a mutable reference which can be bound to\n"
|
|
" different values, while the second represents a reference to a mutable value."
|
|
msgstr ""
|
|
"* Certifique-se de observar a diferença entre `let mut ref_x: &i32` e `let ref_x:\n"
|
|
" &mut i32`. O primeiro representa uma referência mutável que pode ser ligada a\n"
|
|
" diferentes valores, enquanto o segundo representa uma referência a um valor mutável."
|
|
|
|
#: src/basic-syntax/references-dangling.md:1
|
|
msgid "# Dangling References"
|
|
msgstr "# Referências pendentes"
|
|
|
|
#: src/basic-syntax/references-dangling.md:3
|
|
msgid "Rust will statically forbid dangling references:"
|
|
msgstr "Rust estaticamente proibirá referências pendentes:"
|
|
|
|
#: src/basic-syntax/references-dangling.md:5
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let ref_x: &i32;\n"
|
|
" {\n"
|
|
" let x: i32 = 10;\n"
|
|
" ref_x = &x;\n"
|
|
" }\n"
|
|
" println!(\"ref_x: {ref_x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/references-dangling.md:16
|
|
msgid ""
|
|
"* A reference is said to \"borrow\" the value it refers to.\n"
|
|
"* Rust is tracking the lifetimes of all references to ensure they live long\n"
|
|
" enough.\n"
|
|
"* We will talk more about borrowing when we get to ownership."
|
|
msgstr ""
|
|
"* Diz-se que uma referência \"pega emprestado\" o valor a que se refere.\n"
|
|
"* Rust está rastreando os tempos de vida de todas as referências para garantir que elas durem\n"
|
|
" o suficiente.\n"
|
|
"* Falaremos mais sobre empréstimos quando chegarmos à ownership."
|
|
|
|
#: src/basic-syntax/slices.md:1
|
|
msgid "# Slices"
|
|
msgstr "# Slices"
|
|
|
|
#: src/basic-syntax/slices.md:3
|
|
msgid "A slice gives you a view into a larger collection:"
|
|
msgstr "Uma slice oferece uma visão de uma coleção maior:"
|
|
|
|
#: src/basic-syntax/slices.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let a: [i32; 6] = [10, 20, 30, 40, 50, 60];\n"
|
|
" println!(\"a: {a:?}\");"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/slices.md:10
|
|
msgid ""
|
|
" let s: &[i32] = &a[2..4];\n"
|
|
" println!(\"s: {s:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/slices.md:15
|
|
msgid ""
|
|
"* Slices borrow data from the sliced type.\n"
|
|
"* Question: What happens if you modify `a[3]`?"
|
|
msgstr ""
|
|
"* As slices pegam dados emprestados.\n"
|
|
"* Pergunta: O que acontece se você modificar `a[3]`?"
|
|
|
|
#: src/basic-syntax/slices.md:20
|
|
msgid "* We create a slice by borrowing `a` and specifying the starting and ending indexes in brackets."
|
|
msgstr "* Criamos uma slice pegando emprestado `a` e especificando os índices inicial e final entre colchetes."
|
|
|
|
#: src/basic-syntax/slices.md:22
|
|
msgid ""
|
|
"* If the slice starts at index 0, Rust's range syntax allows us to drop the starting index, meaning that `&a[0..a.len()]` "
|
|
"and `&a[..a.len()]` are identical.\n"
|
|
" \n"
|
|
"* The same is true for the last index, so `&a[2..a.len()]` and `&a[2..]` are identical."
|
|
msgstr ""
|
|
"* Se a slice começa no índice 0, a sintaxe de intervalo do Rust nos permite descartar o índice inicial, o que significa que "
|
|
"`&a[0..a.len()]` e `&a[..a.len()]` são idênticos .\n"
|
|
" \n"
|
|
"* O mesmo vale para o último índice, então `&a[2..a.len()]` e `&a[2..]` são idênticos."
|
|
|
|
#: src/basic-syntax/slices.md:26
|
|
msgid "* To easily create a slice of the full array, we can therefore use `&a[..]`."
|
|
msgstr "* Para criar facilmente uma slice do array completo, podemos usar `&a[..]`."
|
|
|
|
#: src/basic-syntax/slices.md:28
|
|
msgid ""
|
|
"* `s` is a reference to a slice of `i32`s. Notice that the type of `s` (`&[i32]`) no longer mentions the array length. This "
|
|
"allows us to perform computation on slices of different sizes.\n"
|
|
" \n"
|
|
"* Slices always borrow from another object. In this example, `a` has to remain 'alive' (in scope) for at least as long as "
|
|
"our slice. \n"
|
|
" \n"
|
|
"* The question about modifying `a[3]` can spark an interesting discussion, but the answer is that for memory safety "
|
|
"reasons\n"
|
|
" you cannot do it through `a` after you created a slice, but you can read the data from both `a` and `s` safely. \n"
|
|
" More details will be explained in the borrow checker section."
|
|
msgstr ""
|
|
"* `s` é uma referência a uma slice de `i32`s. Observe que o tipo de `s` (`&[i32]`) não menciona mais o tamanho do array. "
|
|
"Isso nos permite realizar cálculos em slices de tamanhos diferentes.\n"
|
|
" \n"
|
|
"* As slices sempre pegam emprestado de outro objeto. Neste exemplo, `a` deve permanecer 'vivo' (no escopo) por pelo menos "
|
|
"tanto tempo quanto nossa slice.\n"
|
|
" \n"
|
|
"* A questão sobre a modificação de `a[3]` pode gerar uma discussão interessante, mas a resposta é por motivos de segurança "
|
|
"de memória\n"
|
|
" você não pode fazer isso por meio de `a` depois de criar uma slice, mas pode ler os dados de `a` e `s` com segurança.\n"
|
|
" Mais detalhes serão explicados na seção do verificador de empréstimo."
|
|
|
|
#: src/basic-syntax/string-slices.md:1
|
|
msgid "# `String` vs `str`"
|
|
msgstr "# `String` vs `str`"
|
|
|
|
#: src/basic-syntax/string-slices.md:3
|
|
msgid "We can now understand the two string types in Rust:"
|
|
msgstr "Agora podemos entender os dois tipos de strings em Rust:"
|
|
|
|
#: src/basic-syntax/string-slices.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let s1: &str = \"World\";\n"
|
|
" println!(\"s1: {s1}\");"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/string-slices.md:10
|
|
msgid ""
|
|
" let mut s2: String = String::from(\"Hello \");\n"
|
|
" println!(\"s2: {s2}\");\n"
|
|
" s2.push_str(s1);\n"
|
|
" println!(\"s2: {s2}\");\n"
|
|
" \n"
|
|
" let s3: &str = &s2[6..];\n"
|
|
" println!(\"s3: {s3}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/string-slices.md:20
|
|
msgid "Rust terminology:"
|
|
msgstr "Terminologia do Rust:"
|
|
|
|
#: src/basic-syntax/string-slices.md:22
|
|
msgid ""
|
|
"* `&str` an immutable reference to a string slice.\n"
|
|
"* `String` a mutable string buffer."
|
|
msgstr ""
|
|
"* `&str` é uma referência imutável para uma slice de string.\n"
|
|
"* `String` é um buffer de string mutável."
|
|
|
|
#: src/basic-syntax/string-slices.md:27
|
|
msgid ""
|
|
"* `&str` introduces a string slice, which is an immutable reference to UTF-8 encoded string data \n"
|
|
" stored in a block of memory. String literals (`\"Hello\"`), are stored in the program's binary."
|
|
msgstr ""
|
|
"* `&str` introduz uma slice de string, que é uma referência imutável para dados de string codificados em UTF-8\n"
|
|
" armazenados em um bloco de memória. String literais (`\"Hello\"`), são armazenados no binário do programa."
|
|
|
|
#: src/basic-syntax/string-slices.md:30
|
|
msgid ""
|
|
"* Rust's `String` type is a wrapper around a vector of bytes. As with a `Vec<T>`, it is owned.\n"
|
|
" \n"
|
|
"* As with many other types `String::from()` creates a string from a string literal; `String::new()` \n"
|
|
" creates a new empty string, to which string data can be added using the `push()` and `push_str()` methods."
|
|
msgstr ""
|
|
"* O tipo `String` do Rust é um wrapper em torno de um vetor de bytes. Tal como acontece com um `Vec<T>`, ele é um valor.\n"
|
|
" \n"
|
|
"* Assim como muitos outros tipos, `String::from()` cria uma string a partir de uma string literal; `String::new()`\n"
|
|
" cria uma nova string vazia, na qual os dados da string podem ser adicionados usando os métodos `push()` e `push_str()`."
|
|
|
|
#: src/basic-syntax/string-slices.md:35
|
|
msgid ""
|
|
"* The `format!()` macro is a convenient way to generate an owned string from dynamic values. It \n"
|
|
" accepts the same format specification as `println!()`.\n"
|
|
" \n"
|
|
"* You can borrow `&str` slices from `String` via `&` and optionally range selection.\n"
|
|
" \n"
|
|
"* For C++ programmers: think of `&str` as `const char*` from C++, but the one that always points \n"
|
|
" to a valid string in memory. Rust `String` is a rough equivalent of `std::string` from C++ \n"
|
|
" (main difference: it can only contain UTF-8 encoded bytes and will never use a small-string optimization).\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* A macro `format!()` é uma maneira conveniente de gerar uma string a partir de valores dinâmicos. Isto\n"
|
|
" aceita os mesmos formatadores que `println!()`.\n"
|
|
" \n"
|
|
"* Você pode emprestar slices `&str` de `String` via `&` e, opcionalmente, selecionar um intervalo.\n"
|
|
" \n"
|
|
"* Para programadores C++: pense em `&str` como `const char*` de C++, mas que sempre aponta\n"
|
|
" para uma string válida na memória. Em Rust, `String` é um equivalente aproximado de `std::string` de C++\n"
|
|
" (principal diferença: ele só pode conter bytes codificados em UTF-8 e nunca usará uma otimização de string pequena).\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/basic-syntax/functions.md:1
|
|
msgid "# Functions"
|
|
msgstr "# Funções"
|
|
|
|
#: src/basic-syntax/functions.md:3
|
|
msgid "A Rust version of the famous [FizzBuzz](https://en.wikipedia.org/wiki/Fizz_buzz) interview question:"
|
|
msgstr "Uma versão em Rust da famosa pergunta de entrevistas [FizzBuzz](https://en.wikipedia.org/wiki/Fizz_buzz):"
|
|
|
|
#: src/basic-syntax/functions.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" fizzbuzz_to(20); // Defined below, no forward declaration needed\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" fizzbuzz_to(20); // Definido abaixo, nenhuma declaração prévia é necessária\n"
|
|
"}"
|
|
|
|
#: src/basic-syntax/functions.md:10
|
|
msgid ""
|
|
"fn is_divisible_by(lhs: u32, rhs: u32) -> bool {\n"
|
|
" if rhs == 0 {\n"
|
|
" return false; // Corner case, early return\n"
|
|
" }\n"
|
|
" lhs % rhs == 0 // The last expression in a block is the return value\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn is_divisible_by(lhs: u32, rhs: u32) -> bool {\n"
|
|
" if rhs == 0 {\n"
|
|
" return false; // Caso especial, retorne antes\n"
|
|
" }\n"
|
|
" lhs % rhs == 0 // A última expressão em um bloco é o valor de retorno\n"
|
|
"}"
|
|
|
|
#: src/basic-syntax/functions.md:17
|
|
msgid ""
|
|
"fn fizzbuzz(n: u32) -> () { // No return value means returning the unit type `()`\n"
|
|
" match (is_divisible_by(n, 3), is_divisible_by(n, 5)) {\n"
|
|
" (true, true) => println!(\"fizzbuzz\"),\n"
|
|
" (true, false) => println!(\"fizz\"),\n"
|
|
" (false, true) => println!(\"buzz\"),\n"
|
|
" (false, false) => println!(\"{n}\"),\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn fizzbuzz(n: u32) -> () { // // Nenhum valor de retorno significa retornar o tipo `()`\n"
|
|
" match (is_divisible_by(n, 3), is_divisible_by(n, 5)) {\n"
|
|
" (true, true) => println!(\"fizzbuzz\"),\n"
|
|
" (true, false) => println!(\"fizz\"),\n"
|
|
" (false, true) => println!(\"buzz\"),\n"
|
|
" (false, false) => println!(\"{n}\"),\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/basic-syntax/functions.md:26
|
|
msgid ""
|
|
"fn fizzbuzz_to(n: u32) { // `-> ()` is normally omitted\n"
|
|
" for i in 1..=n {\n"
|
|
" fizzbuzz(i);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn fizzbuzz_to(n: u32) { // `-> ()` normalmente é omitido\n"
|
|
" for i in 1..=n {\n"
|
|
" fizzbuzz(i);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/basic-syntax/functions.md:35
|
|
msgid ""
|
|
"* We refer in `main` to a function written below. Neither forward declarations nor headers are necessary. \n"
|
|
"* Declaration parameters are followed by a type (the reverse of some programming languages), then a return type.\n"
|
|
"* The last expression in a function body (or any block) becomes the return value. Simply omit the `;` at the end of the "
|
|
"expression.\n"
|
|
"* Some functions have no return value, and return the 'unit type', `()`. The compiler will infer this if the `-> ()` return "
|
|
"type is omitted.\n"
|
|
"* The range expression in the `for` loop in `fizzbuzz_to()` contains `=n`, which causes it to include the upper bound.\n"
|
|
"* The `match` expression in `fizzbuzz()` is doing a lot of work. It is expanded below to show what is happening."
|
|
msgstr ""
|
|
"* Nos referimos em `main` a uma função escrita abaixo. Nem declarações prévias e nem cabeçalhos são necessários.\n"
|
|
"* Os parâmetros de declaração são seguidos por um tipo (o inverso de algumas linguagens de programação) e, em seguida, um "
|
|
"tipo de retorno.\n"
|
|
"* A última expressão em um corpo de uma função (ou qualquer bloco) torna-se o valor de retorno. Simplesmente omita o `;` no "
|
|
"final da expressão.\n"
|
|
"* Algumas funções não têm valor de retorno e retornam o 'tipo unitário', `()`. O compilador inferirá isso se o tipo de "
|
|
"retorno `-> ()` for omitido.\n"
|
|
"* A expressão de intervalo no loop `for` em `fizzbuzz_to()` contém `=n`, o que faz com que inclua o limite superior.\n"
|
|
"* A expressão `match` em `fizzbuzz()` faz muita coisa. Ela será expandida abaixo para mostrar o que está acontecendo."
|
|
|
|
#: src/basic-syntax/functions.md:42
|
|
msgid " (Type annotations added for clarity, but they can be elided.)"
|
|
msgstr " (As anotações de tipo foram adicionadas para maior clareza, mas podem ser omitidas.)"
|
|
|
|
#: src/basic-syntax/functions.md:44
|
|
msgid ""
|
|
" ```rust,ignore\n"
|
|
" let by_3: bool = is_divisible_by(n, 3);\n"
|
|
" let by_5: bool = is_divisible_by(n, 5);\n"
|
|
" let by_35: (bool, bool) = (by_3, by_5);\n"
|
|
" match by_35 {\n"
|
|
" // ...\n"
|
|
" ```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/functions.md:52
|
|
msgid " "
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/methods.md:1 src/methods.md:1
|
|
msgid "# Methods"
|
|
msgstr "# Métodos"
|
|
|
|
#: src/basic-syntax/methods.md:3
|
|
msgid ""
|
|
"Rust has methods, they are simply functions that are associated with a particular type. The\n"
|
|
"first argument of a method is an instance of the type it is associated with:"
|
|
msgstr ""
|
|
"Rust tem métodos, eles são simplesmente funções associadas a um tipo específico. O\n"
|
|
"primeiro argumento de um método é uma instância do tipo ao qual está associado:"
|
|
|
|
#: src/basic-syntax/methods.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"struct Rectangle {\n"
|
|
" width: u32,\n"
|
|
" height: u32,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"struct Rectangle {\n"
|
|
" width: u32,\n"
|
|
" height: u32,\n"
|
|
"}"
|
|
|
|
#: src/basic-syntax/methods.md:12
|
|
msgid ""
|
|
"impl Rectangle {\n"
|
|
" fn area(&self) -> u32 {\n"
|
|
" self.width * self.height\n"
|
|
" }"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/methods.md:17
|
|
msgid ""
|
|
" fn inc_width(&mut self, delta: u32) {\n"
|
|
" self.width += delta;\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/methods.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut rect = Rectangle { width: 10, height: 5 };\n"
|
|
" println!(\"old area: {}\", rect.area());\n"
|
|
" rect.inc_width(5);\n"
|
|
" println!(\"new area: {}\", rect.area());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/methods.md:30
|
|
msgid "* We will look much more at methods in today's exercise and in tomorrow's class."
|
|
msgstr "* Veremos muito mais sobre métodos no exercício de hoje e na aula de amanhã."
|
|
|
|
#: src/basic-syntax/functions-interlude.md:1
|
|
msgid "# Function Overloading"
|
|
msgstr "# Sobrecarga de funções"
|
|
|
|
#: src/basic-syntax/functions-interlude.md:3
|
|
msgid "Overloading is not supported:"
|
|
msgstr "A sobrecarga não é suportada:"
|
|
|
|
#: src/basic-syntax/functions-interlude.md:5
|
|
msgid ""
|
|
"* Each function has a single implementation:\n"
|
|
" * Always takes a fixed number of parameters.\n"
|
|
" * Always takes a single set of parameter types.\n"
|
|
"* Default values are not supported:\n"
|
|
" * All call sites have the same number of arguments.\n"
|
|
" * Macros are sometimes used as an alternative."
|
|
msgstr ""
|
|
"* Cada função tem uma única implementação:\n"
|
|
" * Sempre tem um número fixo de parâmetros.\n"
|
|
" * Sempre usa um único conjunto de tipos de parâmetros.\n"
|
|
"* Valores padrão não são suportados:\n"
|
|
" * Todos as chamadas têm o mesmo número de argumentos.\n"
|
|
" * Às vezes macros são usadas como alternativa."
|
|
|
|
#: src/basic-syntax/functions-interlude.md:12
|
|
msgid "However, function parameters can be generic:"
|
|
msgstr "No entanto, os parâmetros da função podem ser genéricos:"
|
|
|
|
#: src/basic-syntax/functions-interlude.md:14
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn pick_one<T>(a: T, b: T) -> T {\n"
|
|
" if std::process::id() % 2 == 0 { a } else { b }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/functions-interlude.md:19
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" println!(\"coin toss: {}\", pick_one(\"heads\", \"tails\"));\n"
|
|
" println!(\"cash prize: {}\", pick_one(500, 1000));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/functions-interlude.md:27
|
|
msgid ""
|
|
"* When using generics, the standard library's `Into<T>` can provide a kind of limited\n"
|
|
" polymorphism on argument types. We will see more details in a later section."
|
|
msgstr ""
|
|
"* Ao usar generics, o `Into<T>` da biblioteca padrão pode fornecer um tipo polimorfismo\n"
|
|
" limitado nos tipos do argumento. Veremos mais detalhes em uma seção posterior."
|
|
|
|
#: src/basic-syntax/functions-interlude.md:30
|
|
msgid "</defails>"
|
|
msgstr "</defails>"
|
|
|
|
#: src/exercises/day-1/morning.md:1
|
|
msgid "# Day 1: Morning Exercises"
|
|
msgstr "# Dia 1: Exercícios matinais"
|
|
|
|
#: src/exercises/day-1/morning.md:3
|
|
msgid "In these exercises, we will explore two parts of Rust:"
|
|
msgstr "Nestes exercícios, exploraremos duas partes do Rust:"
|
|
|
|
#: src/exercises/day-1/morning.md:5
|
|
msgid "* Implicit conversions between types."
|
|
msgstr "* Conversões implícitas entre tipos."
|
|
|
|
#: src/exercises/day-1/morning.md:7
|
|
msgid "* Arrays and `for` loops."
|
|
msgstr "* Arrays e loops `for`."
|
|
|
|
#: src/exercises/day-1/morning.md:11
|
|
msgid "A few things to consider while solving the exercises:"
|
|
msgstr "Algumas coisas a considerar ao resolver os exercícios:"
|
|
|
|
#: src/exercises/day-1/morning.md:13
|
|
msgid ""
|
|
"* Use a local Rust installation, if possible. This way you can get\n"
|
|
" auto-completion in your editor. See the page about [Using Cargo] for details\n"
|
|
" on installing Rust."
|
|
msgstr ""
|
|
"* Se possível, use uma instalação local do Rust. Desta forma, você pode obter\n"
|
|
" preenchimento automático em seu editor. Veja a página sobre [Utilização do Cargo] para detalhes\n"
|
|
" sobre instalação do Rust."
|
|
|
|
#: src/exercises/day-1/morning.md:17
|
|
msgid "* Alternatively, use the Rust Playground."
|
|
msgstr "* Como alternativa, use o Rust Playground."
|
|
|
|
#: src/exercises/day-1/morning.md:19
|
|
msgid ""
|
|
"The code snippets are not editable on purpose: the inline code snippets lose\n"
|
|
"their state if you navigate away from the page."
|
|
msgstr ""
|
|
"Os trechos de código não são editáveis de propósito: os trechos de código embutidos perdem\n"
|
|
"seu estado se você sair da página."
|
|
|
|
#: src/exercises/day-1/morning.md:22 src/exercises/day-1/afternoon.md:11 src/exercises/day-2/morning.md:11
|
|
#: src/exercises/day-2/afternoon.md:7 src/exercises/day-3/morning.md:7 src/exercises/day-4/morning.md:12
|
|
msgid "After looking at the exercises, you can look at the [solutions] provided."
|
|
msgstr "Depois de ver os exercícios, você pode ver as [soluções] fornecidas."
|
|
|
|
#: src/exercises/day-1/morning.md:24 src/exercises/day-2/morning.md:13 src/exercises/day-3/morning.md:9
|
|
#: src/exercises/day-4/morning.md:14
|
|
msgid "[solutions]: solutions-morning.md"
|
|
msgstr "[soluções]:solutions-morning.md"
|
|
|
|
#: src/exercises/day-1/morning.md:26
|
|
msgid "[Using Cargo]: ../../cargo.md"
|
|
msgstr "[Utilização do Cargo]: ../../cargo.md"
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:1
|
|
msgid "# Implicit Conversions"
|
|
msgstr "# Conversões implícitas"
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:3
|
|
msgid ""
|
|
"Rust will not automatically apply _implicit conversions_ between types ([unlike\n"
|
|
"C++][3]). You can see this in a program like this:"
|
|
msgstr ""
|
|
"Rust não aplicará automaticamente _conversões implícitas_ entre os tipos ([ao contrário\n"
|
|
"De C++][3]). Você pode ver isso em um programa como este:"
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:6
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn multiply(x: i16, y: i16) -> i16 {\n"
|
|
" x * y\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:11
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let x: i8 = 15;\n"
|
|
" let y: i16 = 1000;"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:15
|
|
msgid ""
|
|
" println!(\"{x} * {y} = {}\", multiply(x, y));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:19
|
|
msgid ""
|
|
"The Rust integer types all implement the [`From<T>`][1] and [`Into<T>`][2]\n"
|
|
"traits to let us convert between them. The `From<T>` trait has a single `from()`\n"
|
|
"method and similarly, the `Into<T>` trait has a single `into()` method.\n"
|
|
"Implementing these traits is how a type expresses that it can be converted into\n"
|
|
"another type."
|
|
msgstr ""
|
|
"Todos os tipos inteiro do Rust implementam os traits [`From<T>`][1] e [`Into<T>`][2]\n"
|
|
"para nos deixar converter entre eles. Os traits `From<T>` tem um único `from()`\n"
|
|
"e da mesma forma, o trait `Into<T>` tem um único método `into()`.\n"
|
|
"A implementação dessas características é como um tipo expressa que pode ser convertido em\n"
|
|
"outro tipo."
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:25
|
|
msgid ""
|
|
"The standard library has an implementation of `From<i8> for i16`, which means\n"
|
|
"that we can convert a variable `x` of type `i8` to an `i16` by calling \n"
|
|
"`i16::from(x)`. Or, simpler, with `x.into()`, because `From<i8> for i16`\n"
|
|
"implementation automatically create an implementation of `Into<i16> for i8`."
|
|
msgstr ""
|
|
"A biblioteca padrão tem uma implementação de `From<i8> for i16`, o que significa\n"
|
|
"que podemos converter uma variável `x` do tipo `i8` para um `i16` chamando\n"
|
|
"`i16::from(x)`. Ou, mais simples, com `x.into()`, porque a implementação `From<i8> for i16`\n"
|
|
"cria automaticamente uma implementação de `Into<i16> for i8`."
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:30
|
|
msgid ""
|
|
"The same applies for your own `From` implementations for your own types, so it is\n"
|
|
"sufficient to only implement `From` to get a respective `Into` implementation automatically."
|
|
msgstr ""
|
|
"O mesmo se aplica a suas próprias implementações de `From` para seus tipos, então é\n"
|
|
"suficiente implementar apenas `From` para obter uma respectiva implementação `Into` automaticamente."
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:33
|
|
msgid "1. Execute the above program and look at the compiler error."
|
|
msgstr "1. Execute o programa acima e observe o erro do compilador."
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:35
|
|
msgid "2. Update the code above to use `into()` to do the conversion."
|
|
msgstr "2. Atualize o código acima para usar `into()` para fazer a conversão."
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:37
|
|
msgid ""
|
|
"3. Change the types of `x` and `y` to other things (such as `f32`, `bool`,\n"
|
|
" `i128`) to see which types you can convert to which other types. Try\n"
|
|
" converting small types to big types and the other way around. Check the\n"
|
|
" [standard library documentation][1] to see if `From<T>` is implemented for\n"
|
|
" the pairs you check."
|
|
msgstr ""
|
|
"3. Mude os tipos de `x` e `y` para outros tipos (como `f32`, `bool`,\n"
|
|
" `i128`) para ver quais tipos você pode converter para quais outros tipos. Experimente\n"
|
|
" converter tipos pequenos em tipos grandes e vice-versa. Verifique a\n"
|
|
" [documentação da biblioteca padrão][1] para ver se `From<T>` está implementado para\n"
|
|
" os pares que você verifica."
|
|
|
|
#: src/exercises/day-1/implicit-conversions.md:43
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/convert/trait.From.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/convert/trait.Into.html\n"
|
|
"[3]: https://en.cppreference.com/w/cpp/language/implicit_conversion"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/convert/trait.From.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/convert/trait.Into.html\n"
|
|
"[3]: https://en.cppreference.com/w/cpp/language/implicit_conversion"
|
|
|
|
#: src/exercises/day-1/for-loops.md:1
|
|
msgid "# Arrays and `for` Loops"
|
|
msgstr "# Arrays e loops `for`"
|
|
|
|
#: src/exercises/day-1/for-loops.md:3
|
|
msgid "We saw that an array can be declared like this:"
|
|
msgstr "Vimos que um array pode ser declarado assim:"
|
|
|
|
#: src/exercises/day-1/for-loops.md:5
|
|
msgid ""
|
|
"```rust\n"
|
|
"let array = [10, 20, 30];\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:9
|
|
msgid "You can print such an array by asking for its debug representation with `{:?}`:"
|
|
msgstr "Você pode imprimir tal array solicitando sua representação de depuração com `{:?}`:"
|
|
|
|
#: src/exercises/day-1/for-loops.md:11
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let array = [10, 20, 30];\n"
|
|
" println!(\"array: {array:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:18
|
|
msgid ""
|
|
"Rust lets you iterate over things like arrays and ranges using the `for`\n"
|
|
"keyword:"
|
|
msgstr ""
|
|
"Rust permite iterar em coisas como arrays e intervalos usando um `for`\n"
|
|
":"
|
|
|
|
#: src/exercises/day-1/for-loops.md:21
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let array = [10, 20, 30];\n"
|
|
" print!(\"Iterating over array:\");\n"
|
|
" for n in array {\n"
|
|
" print!(\" {n}\");\n"
|
|
" }\n"
|
|
" println!();"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:30
|
|
msgid ""
|
|
" print!(\"Iterating over range:\");\n"
|
|
" for i in 0..3 {\n"
|
|
" print!(\" {}\", array[i]);\n"
|
|
" }\n"
|
|
" println!();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:38
|
|
msgid ""
|
|
"Use the above to write a function `pretty_print` which pretty-print a matrix and\n"
|
|
"a function `transpose` which will transpose a matrix (turn rows into columns):"
|
|
msgstr ""
|
|
"Use o exercício acima para escrever uma função `pretty_print` que imprime um array e\n"
|
|
"uma função `transpose` que irá transpor um array (transformar linhas em colunas):"
|
|
|
|
#: src/exercises/day-1/for-loops.md:41
|
|
msgid ""
|
|
"```bob\n"
|
|
" ⎛⎡1 2 3⎤⎞ ⎡1 4 7⎤\n"
|
|
"\"transpose\"⎜⎢4 5 6⎥⎟ \"==\"⎢2 5 8⎥\n"
|
|
" ⎝⎣7 8 9⎦⎠ ⎣3 6 9⎦\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:47
|
|
msgid "Hard-code both functions to operate on 3 × 3 matrices."
|
|
msgstr "Limite ambas as funções a operar em arrays 3 × 3."
|
|
|
|
#: src/exercises/day-1/for-loops.md:49
|
|
msgid ""
|
|
"Copy the code below to <https://play.rust-lang.org/> and implement the\n"
|
|
"functions:"
|
|
msgstr ""
|
|
"Copie o código abaixo para <https://play.rust-lang.org/> e implemente as\n"
|
|
"funções:"
|
|
|
|
#: src/exercises/day-1/for-loops.md:52 src/exercises/day-1/book-library.md:20 src/exercises/day-2/health-statistics.md:13
|
|
msgid ""
|
|
"```rust,should_panic\n"
|
|
"// TODO: remove this when you're done with your implementation.\n"
|
|
"#![allow(unused_variables, dead_code)]"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:56
|
|
msgid ""
|
|
"fn transpose(matrix: [[i32; 3]; 3]) -> [[i32; 3]; 3] {\n"
|
|
" unimplemented!()\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:60
|
|
msgid ""
|
|
"fn pretty_print(matrix: &[[i32; 3]; 3]) {\n"
|
|
" unimplemented!()\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:64
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let matrix = [\n"
|
|
" [101, 102, 103], // <-- the comment makes rustfmt add a newline\n"
|
|
" [201, 202, 203],\n"
|
|
" [301, 302, 303],\n"
|
|
" ];"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let matrix = [\n"
|
|
" [101, 102, 103], // <-- o comentário faz com que o rustfmt adicione uma nova linha\n"
|
|
" [201, 202, 203],\n"
|
|
" [301, 302, 303],\n"
|
|
" ];"
|
|
|
|
#: src/exercises/day-1/for-loops.md:71 src/exercises/day-1/solutions-morning.md:70
|
|
msgid ""
|
|
" println!(\"matrix:\");\n"
|
|
" pretty_print(&matrix);"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:74
|
|
msgid ""
|
|
" let transposed = transpose(matrix);\n"
|
|
" println!(\"transposed:\");\n"
|
|
" pretty_print(&transposed);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/for-loops.md:80
|
|
msgid "## Bonus Question"
|
|
msgstr "## Pergunta Bônus"
|
|
|
|
#: src/exercises/day-1/for-loops.md:82
|
|
msgid ""
|
|
"Could you use `&[i32]` slices instead of hard-coded 3 × 3 matrices for your\n"
|
|
"argument and return types? Something like `&[&[i32]]` for a two-dimensional\n"
|
|
"slice-of-slices. Why or why not?"
|
|
msgstr ""
|
|
"Você poderia usar slices `&[i32]` em vez de Arrays 3 × 3 estáticos para o seu\n"
|
|
"argumentos e tipos de retorno? Algo como `&[&[i32]]` para um slice-de-slices\n"
|
|
"bidimensional. Por que ou por que não?"
|
|
|
|
#: src/exercises/day-1/for-loops.md:87
|
|
msgid ""
|
|
"See the [`ndarray` crate](https://docs.rs/ndarray/) for a production quality\n"
|
|
"implementation."
|
|
msgstr ""
|
|
"Veja o crate [`ndarray`](https://docs.rs/ndarray/) para uma implementação de produção\n"
|
|
"."
|
|
|
|
#: src/exercises/day-1/for-loops.md:92
|
|
msgid ""
|
|
"The solution and the answer to the bonus section are available in the \n"
|
|
"[Solution](solutions-morning.md#arrays-and-for-loops) section."
|
|
msgstr ""
|
|
"A solução e a resposta para a seção de bônus estão disponíveis no\n"
|
|
"Seção [Solution](solutions-morning.md#arrays-and-for-loops)."
|
|
|
|
#: src/basic-syntax/variables.md:1
|
|
msgid "# Variables"
|
|
msgstr "# Variáveis"
|
|
|
|
#: src/basic-syntax/variables.md:3
|
|
msgid ""
|
|
"Rust provides type safety via static typing. Variable bindings are immutable by\n"
|
|
"default:"
|
|
msgstr ""
|
|
"Rust fornece segurança de tipo por meio de tipagem estática. Variáveis são imutáveis por\n"
|
|
"padrão:"
|
|
|
|
#: src/basic-syntax/variables.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let x: i32 = 10;\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" // x = 20;\n"
|
|
" // println!(\"x: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/variables.md:17
|
|
msgid ""
|
|
"* Due to type inference the `i32` is optional. We will gradually show the types less and less as the course progresses.\n"
|
|
"* Note that since `println!` is a macro, `x` is not moved, even using the function like syntax of `println!(\"x: {}\", x)`"
|
|
msgstr ""
|
|
"* Devido à inferência de tipos, o `i32` é opcional. Gradualmente mostraremos os tipos cada vez menos à medida que o curso "
|
|
"progride.\n"
|
|
"* Observe que como `println!` é uma macro, `x` não é movido, mesmo usando uma sintaxe parecida com a de uma função `println!"
|
|
"(\"x: {}\", x)`"
|
|
|
|
#: src/basic-syntax/type-inference.md:1
|
|
msgid "# Type Inference"
|
|
msgstr "# Inferência do tipo"
|
|
|
|
#: src/basic-syntax/type-inference.md:3
|
|
msgid "Rust will look at how the variable is _used_ to determine the type:"
|
|
msgstr "Rust verá como a variável é _usada_ para determinar o tipo:"
|
|
|
|
#: src/basic-syntax/type-inference.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn takes_u32(x: u32) {\n"
|
|
" println!(\"u32: {x}\");\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/type-inference.md:10
|
|
msgid ""
|
|
"fn takes_i8(y: i8) {\n"
|
|
" println!(\"i8: {y}\");\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/type-inference.md:14
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let x = 10;\n"
|
|
" let y = 20;"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/type-inference.md:18
|
|
msgid ""
|
|
" takes_u32(x);\n"
|
|
" takes_i8(y);\n"
|
|
" // takes_u32(y);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/type-inference.md:26
|
|
msgid ""
|
|
"This slide demonstrates how the Rust compiler infers types based on constraints given by variable declarations and usages.\n"
|
|
msgstr ""
|
|
"Este slide demonstra como o compilador Rust infere tipos com base em restrições dadas por declarações e usos de variáveis.\n"
|
|
|
|
msgid ""
|
|
"It is very important to emphasize that variables declared like this are not of some sort of dynamic \"any type\" that can\n"
|
|
"hold any data. The machine code generated by such declaration is identical to the explicit declaration of a type.\n"
|
|
"The compiler does the job for us and helps us to write a more concise code."
|
|
msgstr ""
|
|
"É muito importante enfatizar que variáveis declaradas assim não são de um tipo dinâmico \"qualquer tipo\" que possa\n"
|
|
"armazenar quaisquer dados. O código de máquina gerado por tal declaração é idêntico à declaração explícita de um tipo.\n"
|
|
"O compilador faz o trabalho para nós e nos ajuda a escrever um código mais conciso."
|
|
|
|
#: src/basic-syntax/type-inference.md:32
|
|
msgid ""
|
|
"The following code tells the compiler to copy into a certain generic container without the code ever explicitly specifying "
|
|
"the contained type, using `_` as a placeholder:"
|
|
msgstr ""
|
|
"O código a seguir informa ao compilador para copiar para um determinado contêiner genérico sem que o código especifique "
|
|
"explicitamente o tipo contido, usando `_` como placeholder:"
|
|
|
|
#: src/basic-syntax/type-inference.md:34
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut v = Vec::new();\n"
|
|
" v.push((10, false));\n"
|
|
" v.push((20, true));\n"
|
|
" println!(\"v: {v:?}\");"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/type-inference.md:41
|
|
msgid ""
|
|
" let vv = v.iter().collect::<std::collections::HashSet<_>>();\n"
|
|
" println!(\"vv: {vv:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/type-inference.md:46
|
|
msgid ""
|
|
"[`collect`](https://doc.rust-lang.org/stable/std/iter/trait.Iterator.html#method.collect) relies on `FromIterator`, which "
|
|
"[`HashSet`](https://doc.rust-lang.org/std/iter/trait.FromIterator.html) implements."
|
|
msgstr ""
|
|
"[`collect`](https://doc.rust-lang.org/stable/std/iter/trait.Iterator.html#method.collect) depende de `FromIterator`, que "
|
|
"[`HashSet`](https:/ /doc.rust-lang.org/std/iter/trait.FromIterator.html) implementa."
|
|
|
|
#: src/basic-syntax/static-and-const.md:1
|
|
msgid "# Static and Constant Variables"
|
|
msgstr "# Variáveis Estáticas e Constantes"
|
|
|
|
#: src/basic-syntax/static-and-const.md:3
|
|
msgid "Global state is managed with static and constant variables."
|
|
msgstr "O estado global é gerenciado com variáveis estáticas e constantes."
|
|
|
|
#: src/basic-syntax/static-and-const.md:5
|
|
msgid "## `const`"
|
|
msgstr "## `const`"
|
|
|
|
#: src/basic-syntax/static-and-const.md:7
|
|
msgid "You can declare compile-time constants:"
|
|
msgstr "Você pode declarar constantes de tempo de compilação:"
|
|
|
|
#: src/basic-syntax/static-and-const.md:9
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"const DIGEST_SIZE: usize = 3;\n"
|
|
"const ZERO: Option<u8> = Some(42);"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/static-and-const.md:13
|
|
msgid ""
|
|
"fn compute_digest(text: &str) -> [u8; DIGEST_SIZE] {\n"
|
|
" let mut digest = [ZERO.unwrap_or(0); DIGEST_SIZE];\n"
|
|
" for (idx, &b) in text.as_bytes().iter().enumerate() {\n"
|
|
" digest[idx % DIGEST_SIZE] = digest[idx % DIGEST_SIZE].wrapping_add(b);\n"
|
|
" }\n"
|
|
" digest\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/static-and-const.md:21
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let digest = compute_digest(\"Hello\");\n"
|
|
" println!(\"Digest: {digest:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/static-and-const.md:27
|
|
msgid "According the the [Rust RFC Book][1] these are inlined upon use."
|
|
msgstr "De acordo com o [Rust RFC Book] [1], eles são expandidos no próprio local (inline) após o uso."
|
|
|
|
#: src/basic-syntax/static-and-const.md:29
|
|
msgid "## `static`"
|
|
msgstr "## `static`"
|
|
|
|
#: src/basic-syntax/static-and-const.md:31
|
|
msgid "You can also declare static variables:"
|
|
msgstr "Você também pode declarar variáveis estáticas:"
|
|
|
|
#: src/basic-syntax/static-and-const.md:33
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"static BANNER: &str = \"Welcome to RustOS 3.14\";"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"static BANNER: &str = \"Bem-vindo ao RustOS 3.14\";"
|
|
|
|
#: src/basic-syntax/static-and-const.md:36
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" println!(\"{BANNER}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/static-and-const.md:41
|
|
msgid ""
|
|
"As noted in the [Rust RFC Book][1], these are not inlined upon use and have an actual associated memory location. This is "
|
|
"useful for unsafe and embedded code, and the variable lives through the entirety of the program execution."
|
|
msgstr ""
|
|
"Conforme observado no [Rust RFC Book][1], `static` e `const` não são expandidos em linha (inlined) quando utilizados uso e "
|
|
"possuem um local de memória real associado. Isso é útil para código inseguro e embarcado, e a variável sobrevive durante "
|
|
"toda a execução do programa."
|
|
|
|
#: src/basic-syntax/static-and-const.md:44
|
|
msgid "We will look at mutating static data in the [chapter on Unsafe Rust](../unsafe.md)."
|
|
msgstr "Veremos a mutação de dados estáticos no [capítulo sobre Unsafe Rust](../unsafe.md)."
|
|
|
|
#: src/basic-syntax/static-and-const.md:48
|
|
msgid ""
|
|
"* Mention that `const` behaves semantically similar to C++'s `constexpr`.\n"
|
|
"* `static`, on the other hand, is much more similar to a `const` or mutable global variable in C++.\n"
|
|
"* It isn't super common that one would need a runtime evaluated constant, but it is helpful and safer than using a static."
|
|
msgstr ""
|
|
"* Mencione que `const` se comporta semanticamente similar ao `constexpr` de C++.\n"
|
|
"* `static`, por outro lado, é muito mais parecido com um `const` ou variável global mutável em C++.\n"
|
|
"* Não é muito comum que alguém precise de uma constante avaliada em tempo de execução, mas é útil e mais seguro do que usar "
|
|
"uma estática."
|
|
|
|
#: src/basic-syntax/static-and-const.md:54
|
|
msgid "[1]: https://rust-lang.github.io/rfcs/0246-const-vs-static.html"
|
|
msgstr "[1]: https://rust-lang.github.io/rfcs/0246-const-vs-static.html"
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:1
|
|
msgid "# Scopes and Shadowing"
|
|
msgstr "# Escopos e Sobreposição"
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:3
|
|
msgid ""
|
|
"You can shadow variables, both those from outer scopes and variables from the\n"
|
|
"same scope:"
|
|
msgstr ""
|
|
"Você pode sobrepor (shadow) variáveis, tanto aquelas de escopos externos quanto variáveis do\n"
|
|
"mesmo escopo:"
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let a = 10;\n"
|
|
" println!(\"before: {a}\");"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:11
|
|
msgid ""
|
|
" {\n"
|
|
" let a = \"hello\";\n"
|
|
" println!(\"inner scope: {a}\");"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:15
|
|
msgid ""
|
|
" let a = true;\n"
|
|
" println!(\"shadowed in inner scope: {a}\");\n"
|
|
" }"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:19
|
|
msgid ""
|
|
" println!(\"after: {a}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:25
|
|
msgid ""
|
|
"* Definition: Shadowing is different from mutation, because after shadowing both variable's memory locations exist at the "
|
|
"same time. Both are available under the same name, depending where you use it in the code. \n"
|
|
"* A shadowing variable can have a different type. \n"
|
|
"* Shadowing looks obscure at first, but is convenient for holding on to values after `.unwrap()`.\n"
|
|
"* The following code demonstrates why the compiler can't simply reuse memory locations when shadowing an immutable variable "
|
|
"in a scope, even if the type does not change."
|
|
msgstr ""
|
|
"* Definição: A sobreposição é diferente da mutação, porque após a sobreposição, os locais de memória de ambas as variáveis "
|
|
"existem ao mesmo tempo. Ambos estão disponíveis com o mesmo nome, dependendo de onde você os usa no código.\n"
|
|
"* Uma variável sobreposta pode ter um tipo diferente.\n"
|
|
"* A sobreposição parece obscura a princípio, mas é conveniente para manter os valores após `.unwrap()`.\n"
|
|
"* O código a seguir demonstra por que o compilador não pode simplesmente reutilizar locais de memória ao sobrepor uma "
|
|
"variável imutável em um escopo, mesmo que o tipo não seja alterado."
|
|
|
|
#: src/basic-syntax/scopes-shadowing.md:30
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let a = 1;\n"
|
|
" let b = &a;\n"
|
|
" let a = a + 1;\n"
|
|
" println!(\"{a} {b}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management.md:1
|
|
msgid "# Memory Management"
|
|
msgstr "# Gerenciamento de memória"
|
|
|
|
#: src/memory-management.md:3
|
|
msgid "Traditionally, languages have fallen into two broad categories:"
|
|
msgstr "Tradicionalmente, as linguagens se dividem em duas grandes categorias:"
|
|
|
|
#: src/memory-management.md:5
|
|
msgid ""
|
|
"* Full control via manual memory management: C, C++, Pascal, ...\n"
|
|
"* Full safety via automatic memory management at runtime: Java, Python, Go, Haskell, ..."
|
|
msgstr ""
|
|
"* Controle total através gerenciamento manual de memória: C, C++, Pascal, ...\n"
|
|
"* Segurança total através do gerenciamento automático de memória em tempo de execução: Java, Python, Go, Haskell, ..."
|
|
|
|
#: src/memory-management.md:8
|
|
msgid "Rust offers a new mix:"
|
|
msgstr "Rust oferece uma nova mistura:"
|
|
|
|
#: src/memory-management.md:10
|
|
msgid ""
|
|
"> Full control *and* safety via compile time enforcement of correct memory\n"
|
|
"> management."
|
|
msgstr ""
|
|
"> Controle total *e* segurança por imposição do correto gerenciamento de memória em tempo de\n"
|
|
"> compilação."
|
|
|
|
#: src/memory-management.md:13
|
|
msgid "It does this with an explicit ownership concept."
|
|
msgstr "Ele faz isso com um conceito de ownership explícito."
|
|
|
|
#: src/memory-management.md:15
|
|
msgid "First, let's refresh how memory management works."
|
|
msgstr "Primeiro, vamos rever como o gerenciamento de memória funciona."
|
|
|
|
#: src/memory-management/stack-vs-heap.md:1
|
|
msgid "# The Stack vs The Heap"
|
|
msgstr "# O Stack vs O Heap"
|
|
|
|
#: src/memory-management/stack-vs-heap.md:3
|
|
msgid ""
|
|
"* Stack: Continuous area of memory for local variables.\n"
|
|
" * Values have fixed sizes known at compile time.\n"
|
|
" * Extremely fast: just move a stack pointer.\n"
|
|
" * Easy to manage: follows function calls.\n"
|
|
" * Great memory locality."
|
|
msgstr ""
|
|
"* Stack: Área contínua de memória para variáveis locais.\n"
|
|
" * Os valores têm tamanhos fixos conhecidos em tempo de compilação.\n"
|
|
" * Extremamente rápido: basta mover um ponteiro do stack.\n"
|
|
" * Fácil de gerenciar: segue chamadas de função.\n"
|
|
" * Ótima localização na memória."
|
|
|
|
#: src/memory-management/stack-vs-heap.md:9
|
|
msgid ""
|
|
"* Heap: Storage of values outside of function calls.\n"
|
|
" * Values have dynamic sizes determined at runtime.\n"
|
|
" * Slightly slower than the stack: some book-keeping needed.\n"
|
|
" * No guarantee of memory locality."
|
|
msgstr ""
|
|
"* Heap: Armazenamento de valores fora das chamadas de função.\n"
|
|
" * Os valores têm tamanhos dinâmicos determinados em tempo de execução.\n"
|
|
" * Ligeiramente mais lento que o stack: é necessária alguma contabilidade.\n"
|
|
" * Sem garantia de localização na memória."
|
|
|
|
#: src/memory-management/stack.md:1
|
|
msgid "# Stack Memory"
|
|
msgstr "# Memória de Pilha (stack Memory)"
|
|
|
|
#: src/memory-management/stack.md:3
|
|
msgid ""
|
|
"Creating a `String` puts fixed-sized data on the stack and dynamically sized\n"
|
|
"data on the heap:"
|
|
msgstr ""
|
|
"A criação de uma `String` coloca dados de tamanho fixo no stack e dados dimensionados dinamicamente\n"
|
|
"no heap:"
|
|
|
|
#: src/memory-management/stack.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let s1 = String::from(\"Hello\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/stack.md:12
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": s1 : : :\n"
|
|
": +-----------+-------+ : : +----+----+----+----+----+ :\n"
|
|
": | ptr | o---+---+-----+-->| H | e | l | l | o | :\n"
|
|
": | len | 5 | : : +----+----+----+----+----+ :\n"
|
|
": | capacity | 5 | : : :\n"
|
|
": +-----------+-------+ : : :\n"
|
|
": : `- - - - - - - - - - - - - - - -'\n"
|
|
"`- - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/stack.md:28
|
|
msgid ""
|
|
"* Mention that a `String` is backed by a `Vec`, so it has a capacity and length and can grow if mutable via reallocation on "
|
|
"the heap."
|
|
msgstr ""
|
|
"* Mencione que um `String` é baseada em um `Vec`, então ele tem capacidade e comprimento e pode crescer se for mutável por "
|
|
"meio de realocação no heap."
|
|
|
|
#: src/memory-management/stack.md:30
|
|
msgid ""
|
|
"* If students ask about it, you can mention that the underlying memory is heap allocated using the [System Allocator] and "
|
|
"custom allocators can be implemented using the [Allocator API]"
|
|
msgstr ""
|
|
"* Se os alunos perguntarem sobre isso, você pode mencionar que a memória do heap é alocada usando o [System Allocator] e "
|
|
"alocadores personalizados podem ser implementados usando a [Allocator API]"
|
|
|
|
#: src/memory-management/stack.md:32
|
|
msgid "* We can inspect the memory layout with `unsafe` code. However, you should point out that this is rightfully unsafe!"
|
|
msgstr "* Pode-se inspecionar o layout de memória com `unsafe` code. Entretanto, deve-se salientar que isto é inseguro!"
|
|
|
|
#: src/memory-management/stack.md:34
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut s1 = String::from(\"Hello\");\n"
|
|
" s1.push(' ');\n"
|
|
" s1.push_str(\"world\");\n"
|
|
" // DON'T DO THIS AT HOME! For educational purposes only.\n"
|
|
" // String provides no guarantees about its layout, so this could lead to\n"
|
|
" // undefined behavior.\n"
|
|
" unsafe {\n"
|
|
" let (capacity, ptr, len): (usize, usize, usize) = std::mem::transmute(s1);\n"
|
|
" println!(\"ptr = {ptr:#x}, len = {len}, capacity = {capacity}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/stack.md:51
|
|
msgid ""
|
|
"[System Allocator]: https://doc.rust-lang.org/std/alloc/struct.System.html\n"
|
|
"[Allocator API]: https://doc.rust-lang.org/std/alloc/index.html"
|
|
msgstr ""
|
|
"[System Allocator]: https://doc.rust-lang.org/std/alloc/struct.System.html\n"
|
|
"[Allocator API]: https://doc.rust-lang.org/std/alloc/index.html"
|
|
|
|
#: src/memory-management/manual.md:1
|
|
msgid "# Manual Memory Management"
|
|
msgstr "# Gerenciamento manual de memória"
|
|
|
|
#: src/memory-management/manual.md:3
|
|
msgid "You allocate and deallocate heap memory yourself."
|
|
msgstr "Você mesmo aloca e desaloca memória no heap."
|
|
|
|
#: src/memory-management/manual.md:5
|
|
msgid "If not done with care, this can lead to crashes, bugs, security vulnerabilities, and memory leaks."
|
|
msgstr ""
|
|
"Se não for feito com cuidado, isso pode levar a travamentos, bugs, vulnerabilidades de segurança e vazamentos de memória."
|
|
|
|
#: src/memory-management/manual.md:7
|
|
msgid "## C Example"
|
|
msgstr "## Exemplo em C"
|
|
|
|
#: src/memory-management/manual.md:9
|
|
msgid "You must call `free` on every pointer you allocate with `malloc`:"
|
|
msgstr "Você deve chamar `free` em cada ponteiro que alocar com `malloc`:"
|
|
|
|
#: src/memory-management/manual.md:11
|
|
msgid ""
|
|
"```c\n"
|
|
"void foo(size_t n) {\n"
|
|
" int* int_array = (int*)malloc(n * sizeof(int));\n"
|
|
" //\n"
|
|
" // ... lots of code\n"
|
|
" //\n"
|
|
" free(int_array);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/manual.md:21
|
|
msgid ""
|
|
"Memory is leaked if the function returns early between `malloc` and `free`: the\n"
|
|
"pointer is lost and we cannot deallocate the memory."
|
|
msgstr ""
|
|
"A memória vaza se a função retornar mais cedo entre `malloc` e `free`: o\n"
|
|
"ponteiro é perdido e não podemos desalocar a memória."
|
|
|
|
#: src/memory-management/scope-based.md:1
|
|
msgid "# Scope-Based Memory Management"
|
|
msgstr "# Gerenciamento de memória baseado em escopo"
|
|
|
|
#: src/memory-management/scope-based.md:3
|
|
msgid "Constructors and destructors let you hook into the lifetime of an object."
|
|
msgstr "Construtores e destruidores permitem que a tempo de vida de um objeto seja rastreado."
|
|
|
|
#: src/memory-management/scope-based.md:5
|
|
msgid ""
|
|
"By wrapping a pointer in an object, you can free memory when the object is\n"
|
|
"destroyed. The compiler guarantees that this happens, even if an exception is\n"
|
|
"raised."
|
|
msgstr ""
|
|
"Ao envolver um ponteiro em um objeto, você pode liberar memória quando o objeto é\n"
|
|
"destruído. O compilador garante que isso aconteça, mesmo que uma exceção seja\n"
|
|
"criada."
|
|
|
|
#: src/memory-management/scope-based.md:9
|
|
msgid ""
|
|
"This is often called _resource acquisition is initialization_ (RAII) and gives\n"
|
|
"you smart pointers."
|
|
msgstr ""
|
|
"Isso geralmente é chamado de _aquisição de recursos é inicialização_ (resource acquisition is initialization, RAII) e "
|
|
"fornece\n"
|
|
"ponteiros inteligentes."
|
|
|
|
#: src/memory-management/scope-based.md:12
|
|
msgid "## C++ Example"
|
|
msgstr "## Exemplo em C++"
|
|
|
|
#: src/memory-management/scope-based.md:14
|
|
msgid ""
|
|
"```c++\n"
|
|
"void say_hello(std::unique_ptr<Person> person) {\n"
|
|
" std::cout << \"Hello \" << person->name << std::endl;\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/scope-based.md:20
|
|
msgid ""
|
|
"* The `std::unique_ptr` object is allocated on the stack, and points to\n"
|
|
" memory allocated on the heap.\n"
|
|
"* At the end of `say_hello`, the `std::unique_ptr` destructor will run.\n"
|
|
"* The destructor frees the `Person` object it points to."
|
|
msgstr ""
|
|
"* O objeto `std::unique_ptr` é alocado no stack e aponta para\n"
|
|
" memória alocada no heap.\n"
|
|
"* No final de `say_hello`, o destrutor `std::unique_ptr` será executado.\n"
|
|
"* O destrutor libera o objeto `Person` para o qual ele aponta."
|
|
|
|
#: src/memory-management/scope-based.md:25
|
|
msgid "Special move constructors are used when passing ownership to a function:"
|
|
msgstr "Construtores de movimentos especiais são usados ao passar a \"ownership\" para uma função:"
|
|
|
|
#: src/memory-management/scope-based.md:27
|
|
msgid ""
|
|
"```c++\n"
|
|
"std::unique_ptr<Person> person = find_person(\"Carla\");\n"
|
|
"say_hello(std::move(person));\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/garbage-collection.md:1
|
|
msgid "# Automatic Memory Management"
|
|
msgstr "# Gerenciamento Automático de Memória"
|
|
|
|
#: src/memory-management/garbage-collection.md:3
|
|
msgid ""
|
|
"An alternative to manual and scope-based memory management is automatic memory\n"
|
|
"management:"
|
|
msgstr ""
|
|
"Uma alternativa ao gerenciamento de memória manual e baseado em escopo é o gerenciamento automático\n"
|
|
"de memória:"
|
|
|
|
#: src/memory-management/garbage-collection.md:6
|
|
msgid ""
|
|
"* The programmer never allocates or deallocates memory explicitly.\n"
|
|
"* A garbage collector finds unused memory and deallocates it for the programmer."
|
|
msgstr ""
|
|
"* O programador nunca aloca ou desaloca memória explicitamente.\n"
|
|
"* Um \"coletor de lixo\" (garbage collector) encontra memória não utilizada e a desaloca para o programador."
|
|
|
|
#: src/memory-management/garbage-collection.md:9
|
|
msgid "## Java Example"
|
|
msgstr "## Exemplo em Java"
|
|
|
|
#: src/memory-management/garbage-collection.md:11
|
|
msgid "The `person` object is not deallocated after `sayHello` returns:"
|
|
msgstr "O objeto `person` não é desalocado depois que `sayHello` retorna:"
|
|
|
|
#: src/memory-management/garbage-collection.md:13
|
|
msgid ""
|
|
"```java\n"
|
|
"void sayHello(Person person) {\n"
|
|
" System.out.println(\"Hello \" + person.getName());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/memory-management/rust.md:1
|
|
msgid "# Memory Management in Rust"
|
|
msgstr "# Gerenciamento de memória em Rust"
|
|
|
|
#: src/memory-management/rust.md:3
|
|
msgid "Memory management in Rust is a mix:"
|
|
msgstr "O gerenciamento de memória no Rust é uma mistura:"
|
|
|
|
#: src/memory-management/rust.md:5
|
|
msgid ""
|
|
"* Safe and correct like Java, but without a garbage collector.\n"
|
|
"* Depending on which abstraction (or combination of abstractions) you choose, can be a single unique pointer, reference "
|
|
"counted, or atomically reference counted.\n"
|
|
"* Scope-based like C++, but the compiler enforces full adherence.\n"
|
|
"* A Rust user can choose the right abstraction for the situation, some even have no cost at runtime like C."
|
|
msgstr ""
|
|
"* Seguro e correto como Java, mas sem coletor de lixo.\n"
|
|
"* Dependendo de qual abstração (ou combinação de abstrações) você escolher, pode ser um simples ponteiro único, referência "
|
|
"contada ou referência atomicamente contada.\n"
|
|
"* Baseado em escopo como C++, mas o compilador impõe adesão total.\n"
|
|
"* Um usuário do Rust pode escolher a abstração certa para a situação, algumas até sem custo em tempo de execução como C."
|
|
|
|
#: src/memory-management/rust.md:10
|
|
msgid "It achieves this by modeling _ownership_ explicitly."
|
|
msgstr "Ele consegue isso modelando _ownership_ explicitamente."
|
|
|
|
#: src/memory-management/rust.md:14
|
|
msgid ""
|
|
"* If asked how at this point, you can mention that in Rust this is usually handled by RAII wrapper types such as [Box], "
|
|
"[Vec], [Rc], or [Arc]. These encapsulate ownership and memory allocation via various means, and prevent the potential "
|
|
"errors in C."
|
|
msgstr ""
|
|
"* Neste ponto, se perguntado como, você pode mencionar que em Rust isso geralmente é tratado por wrappers RAII como [Box], "
|
|
"[Vec], [Rc] ou [Arc]. Eles encapsulam a ownership e a alocação de memória por vários meios e evitam possíveis erros em C."
|
|
|
|
#: src/memory-management/rust.md:16
|
|
msgid "* You may be asked about destructors here, the [Drop] trait is the Rust equivalent."
|
|
msgstr "* Você pode ser questionado sobre destruidores aqui, o trait [Drop] é o equivalente ao Rust."
|
|
|
|
#: src/memory-management/rust.md:20
|
|
msgid ""
|
|
"[Box]: https://doc.rust-lang.org/std/boxed/struct.Box.html\n"
|
|
"[Vec]: https://doc.rust-lang.org/std/vec/struct.Vec.html\n"
|
|
"[Rc]: https://doc.rust-lang.org/std/rc/struct.Rc.html\n"
|
|
"[Arc]: https://doc.rust-lang.org/std/sync/struct.Arc.html\n"
|
|
"[Drop]: https://doc.rust-lang.org/std/ops/trait.Drop.html"
|
|
msgstr ""
|
|
"[Box]: https://doc.rust-lang.org/std/boxed/struct.Box.html\n"
|
|
"[Vec]: https://doc.rust-lang.org/std/vec/struct.Vec.html\n"
|
|
"[Rc]: https://doc.rust-lang.org/std/rc/struct.Rc.html\n"
|
|
"[Arc]: https://doc.rust-lang.org/std/sync/struct.Arc.html\n"
|
|
"[Drop]: https://doc.rust-lang.org/std/ops/trait.Drop.html"
|
|
|
|
#: src/memory-management/comparison.md:1
|
|
msgid "# Comparison"
|
|
msgstr "# Comparação"
|
|
|
|
#: src/memory-management/comparison.md:3
|
|
msgid "Here is a rough comparison of the memory management techniques."
|
|
msgstr "Aqui está uma comparação aproximada das técnicas de gerenciamento de memória."
|
|
|
|
#: src/memory-management/comparison.md:5
|
|
msgid "## Pros of Different Memory Management Techniques"
|
|
msgstr "## Vantagens de diferentes técnicas de gerenciamento de memória"
|
|
|
|
#: src/memory-management/comparison.md:7
|
|
msgid ""
|
|
"* Manual like C:\n"
|
|
" * No runtime overhead.\n"
|
|
"* Automatic like Java:\n"
|
|
" * Fully automatic.\n"
|
|
" * Safe and correct.\n"
|
|
"* Scope-based like C++:\n"
|
|
" * Partially automatic.\n"
|
|
" * No runtime overhead.\n"
|
|
"* Compiler-enforced scope-based like Rust:\n"
|
|
" * Enforced by compiler.\n"
|
|
" * No runtime overhead.\n"
|
|
" * Safe and correct."
|
|
msgstr ""
|
|
"* Manual como C:\n"
|
|
" * Nenhuma sobrecarga em tempo de execução.\n"
|
|
"* Automático como Java:\n"
|
|
" * Totalmente automatizado.\n"
|
|
" * Seguro e correto.\n"
|
|
"* Baseado em escopo como C++:\n"
|
|
" * Parcialmente automático.\n"
|
|
" * Nenhuma sobrecargo de tempo de execução.\n"
|
|
"* Baseado em escopo aplicado pelo compilador como Rust:\n"
|
|
" * Aplicado pelo compilador.\n"
|
|
" * Nenhuma sobrecarga em tempo de execução.\n"
|
|
" * Seguro e correto."
|
|
|
|
#: src/memory-management/comparison.md:20
|
|
msgid "## Cons of Different Memory Management Techniques"
|
|
msgstr "## Desvantagens de diferentes técnicas de gerenciamento de memória"
|
|
|
|
#: src/memory-management/comparison.md:22
|
|
msgid ""
|
|
"* Manual like C:\n"
|
|
" * Use-after-free.\n"
|
|
" * Double-frees.\n"
|
|
" * Memory leaks.\n"
|
|
"* Automatic like Java:\n"
|
|
" * Garbage collection pauses.\n"
|
|
" * Destructor delays.\n"
|
|
"* Scope-based like C++:\n"
|
|
" * Complex, opt-in by programmer.\n"
|
|
" * Potential for use-after-free.\n"
|
|
"* Compiler-enforced and scope-based like Rust:\n"
|
|
" * Some upfront complexity.\n"
|
|
" * Can reject valid programs."
|
|
msgstr ""
|
|
"* Manual como C:\n"
|
|
" * Use-after-free.\n"
|
|
" * Liberações duplas (double-free).\n"
|
|
" * Vazamento de memória.\n"
|
|
"* Automático como Java:\n"
|
|
" * Pausa para coleta de lixo.\n"
|
|
" * Atrasos na execução de destrutores.\n"
|
|
"* Baseado em escopo como C++:\n"
|
|
" * Complexo, o programador deve optar em utilizá-las.\n"
|
|
" * Potencial para uso pós-livre (user-after-free).\n"
|
|
"* Obrigado pelo compilador e baseado em escopo como Rust:\n"
|
|
" * Alguma complexidade inicial.\n"
|
|
" * Pode rejeitar programas válidos."
|
|
|
|
#: src/ownership.md:1
|
|
msgid "# Ownership"
|
|
msgstr "# Ownership"
|
|
|
|
#: src/ownership.md:3
|
|
msgid ""
|
|
"All variable bindings have a _scope_ where they are valid and it is an error to\n"
|
|
"use a variable outside its scope:"
|
|
msgstr ""
|
|
"Todas as associações de variáveis têm um _escopo_ onde são válidas e é um erro\n"
|
|
"usar uma variável fora de seu escopo:"
|
|
|
|
#: src/ownership.md:6
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"struct Point(i32, i32);"
|
|
msgstr ""
|
|
|
|
#: src/ownership.md:9
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" {\n"
|
|
" let p = Point(3, 4);\n"
|
|
" println!(\"x: {}\", p.0);\n"
|
|
" }\n"
|
|
" println!(\"y: {}\", p.1);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership.md:18
|
|
msgid ""
|
|
"* At the end of the scope, the variable is _dropped_ and the data is freed.\n"
|
|
"* A destructor can run here to free up resources.\n"
|
|
"* We say that the variable _owns_ the value."
|
|
msgstr ""
|
|
"* No final do escopo, a variável é _dropada_ e os dados são liberados.\n"
|
|
"* Um destrutor pode ser executado aqui para liberar recursos.\n"
|
|
"* Dizemos que a variável _possui_ (é dona) o valor."
|
|
|
|
#: src/ownership/move-semantics.md:1
|
|
msgid "# Move Semantics"
|
|
msgstr "# Semântica de mover (move)"
|
|
|
|
#: src/ownership/move-semantics.md:3
|
|
msgid "An assignment will transfer ownership between variables:"
|
|
msgstr "Uma atribuição transferirá a ownership entre variáveis:"
|
|
|
|
#: src/ownership/move-semantics.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let s1: String = String::from(\"Hello!\");\n"
|
|
" let s2: String = s1;\n"
|
|
" println!(\"s2: {s2}\");\n"
|
|
" // println!(\"s1: {s1}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/move-semantics.md:14
|
|
msgid ""
|
|
"* The assignment of `s1` to `s2` transfers ownership.\n"
|
|
"* The data was _moved_ from `s1` and `s1` is no longer accessible.\n"
|
|
"* When `s1` goes out of scope, nothing happens: it has no ownership.\n"
|
|
"* When `s2` goes out of scope, the string data is freed.\n"
|
|
"* There is always _exactly_ one variable binding which owns a value."
|
|
msgstr ""
|
|
"* A atribuição de `s1` a `s2` transfere a ownership.\n"
|
|
"* Os dados foram _movidos_ de `s1` e `s1` não estão mais acessíveis.\n"
|
|
"* Quando `s1` sai do escopo, nada acontece: ele não tem ownership.\n"
|
|
"* Quando `s2` sai do escopo, os dados da string são liberados.\n"
|
|
"* Há sempre _exatamente_ uma associação de variável que possui um valor."
|
|
|
|
#: src/ownership/move-semantics.md:22
|
|
msgid ""
|
|
"* Mention that this is the opposite of the defaults in C++, which copies by value unless you use `std::move` (and the move "
|
|
"constructor is defined!)."
|
|
msgstr ""
|
|
"* Mencione que isso é o oposto dos padrões em C++, que copia por valor, a menos que você use `std::move` (e o construtor de "
|
|
"movimento esteja definido!)."
|
|
|
|
#: src/ownership/move-semantics.md:24
|
|
msgid "* In Rust, you clones are explicit (by using `clone`)."
|
|
msgstr "* No Rust, clones são explícitos (usando `clone`)."
|
|
|
|
#: src/ownership/moved-strings-rust.md:1
|
|
msgid "# Moved Strings in Rust"
|
|
msgstr "# Strings movidas em Rust"
|
|
|
|
#: src/ownership/moved-strings-rust.md:3
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let s1: String = String::from(\"Rust\");\n"
|
|
" let s2: String = s1;\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/moved-strings-rust.md:10
|
|
msgid ""
|
|
"* The heap data from `s1` is reused for `s2`.\n"
|
|
"* When `s1` goes out of scope, nothing happens (it has been moved from)."
|
|
msgstr ""
|
|
"* Os dados no heap de `s1` são reutilizados para `s2`.\n"
|
|
"* Quando `s1` sai do escopo, nada acontece (foi movido de)."
|
|
|
|
#: src/ownership/moved-strings-rust.md:13
|
|
msgid "Before move to `s2`:"
|
|
msgstr "Antes de mover para `s2`:"
|
|
|
|
#: src/ownership/moved-strings-rust.md:15
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": s1 : : :\n"
|
|
": +-----------+-------+ : : +----+----+----+----+ :\n"
|
|
": | ptr | o---+---+-----+-->| R | u | s | t | :\n"
|
|
": | len | 4 | : : +----+----+----+----+ :\n"
|
|
": | capacity | 4 | : : :\n"
|
|
": +-----------+-------+ : : :\n"
|
|
": : `- - - - - - - - - - - - - -'\n"
|
|
": :\n"
|
|
"`- - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/moved-strings-rust.md:30
|
|
msgid "After move to `s2`:"
|
|
msgstr "Depois de mover para `s2`:"
|
|
|
|
#: src/ownership/moved-strings-rust.md:32
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": s1 \"(inaccessible)\" : : :\n"
|
|
": +-----------+-------+ : : +----+----+----+----+ :\n"
|
|
": | ptr | o---+---+--+--+-->| R | u | s | t | :\n"
|
|
": | len | 4 | : | : +----+----+----+----+ :\n"
|
|
": | capacity | 4 | : | : :\n"
|
|
": +-----------+-------+ : | : :\n"
|
|
": : | `- - - - - - - - - - - - - -'\n"
|
|
": s2 : |\n"
|
|
": +-----------+-------+ : |\n"
|
|
": | ptr | o---+---+--'\n"
|
|
": | len | 4 | :\n"
|
|
": | capacity | 4 | :\n"
|
|
": +-----------+-------+ :\n"
|
|
": :\n"
|
|
"`- - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:1
|
|
msgid "# Double Frees in Modern C++"
|
|
msgstr "# Liberações duplas (double-free) em C++ moderno"
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:3
|
|
msgid "Modern C++ solves this differently:"
|
|
msgstr "O C++ moderno resolve isso de maneira diferente:"
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:5
|
|
msgid ""
|
|
"```c++\n"
|
|
"std::string s1 = \"Cpp\";\n"
|
|
"std::string s2 = s1; // Duplicate the data in s1.\n"
|
|
"```"
|
|
msgstr ""
|
|
"```c++\n"
|
|
"std::string s1 = \"Cpp\";\n"
|
|
"std::string s2 = s1; // Duplica os dados em s1.\n"
|
|
"```"
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:10
|
|
msgid ""
|
|
"* The heap data from `s1` is duplicated and `s2` gets its own independent copy.\n"
|
|
"* When `s1` and `s2` go out of scope, they each free their own memory."
|
|
msgstr ""
|
|
"* Os dados de `s1` no heap são duplicados e `s2` obtém sua própria cópia independente.\n"
|
|
"* Quando `s1` e `s2` saem do escopo, cada um libera sua própria memória."
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:13
|
|
msgid "Before copy-assignment:"
|
|
msgstr "Antes da atribuição por cópias:"
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:16
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": s1 : : :\n"
|
|
": +-----------+-------+ : : +----+----+----+ :\n"
|
|
": | ptr | o---+---+--+--+-->| C | p | p | :\n"
|
|
": | len | 3 | : : +----+----+----+ :\n"
|
|
": | capacity | 3 | : : :\n"
|
|
": +-----------+-------+ : : :\n"
|
|
": : `- - - - - - - - - - - -'\n"
|
|
"`- - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:30
|
|
msgid "After copy-assignment:"
|
|
msgstr "Após atribuição por cópia:"
|
|
|
|
#: src/ownership/double-free-modern-cpp.md:32
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": s1 : : :\n"
|
|
": +-----------+-------+ : : +----+----+----+ :\n"
|
|
": | ptr | o---+---+--+--+-->| C | p | p | :\n"
|
|
": | len | 3 | : : +----+----+----+ :\n"
|
|
": | capacity | 3 | : : :\n"
|
|
": +-----------+-------+ : : :\n"
|
|
": : : :\n"
|
|
": s2 : : :\n"
|
|
": +-----------+-------+ : : +----+----+----+ :\n"
|
|
": | ptr | o---+---+-----+-->| C | p | p | :\n"
|
|
": | len | 3 | : : +----+----+----+ :\n"
|
|
": | capacity | 3 | : : :\n"
|
|
": +-----------+-------+ : : :\n"
|
|
": : `- - - - - - - - - - - -'\n"
|
|
"`- - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/moves-function-calls.md:1
|
|
msgid "# Moves in Function Calls"
|
|
msgstr "# Movimentos em chamadas de Função"
|
|
|
|
#: src/ownership/moves-function-calls.md:3
|
|
msgid ""
|
|
"When you pass a value to a function, the value is assigned to the function\n"
|
|
"parameter. This transfers ownership:"
|
|
msgstr ""
|
|
"Quando você passa um valor para uma função, o valor é atribuído ao parâmetro\n"
|
|
"da função. Isso transfere a ownership:"
|
|
|
|
#: src/ownership/moves-function-calls.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn say_hello(name: String) {\n"
|
|
" println!(\"Hello {name}\")\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/ownership/moves-function-calls.md:11
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let name = String::from(\"Alice\");\n"
|
|
" say_hello(name);\n"
|
|
" // say_hello(name);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/ownership/moves-function-calls.md:20
|
|
msgid ""
|
|
"* With the first call to `say_hello`, `main` gives up ownership of `name`. Afterwards, `name` cannot be used anymore within "
|
|
"`main`.\n"
|
|
"* The heap memory allocated for `name` will be freed at the end of the `say_hello` function.\n"
|
|
"* `main` can retain ownership if it passes `name` as a reference (`&name`) and if `say_hello` accepts a reference as a "
|
|
"parameter.\n"
|
|
"* Alternatively, `main` can pass a clone of `name` in the first call (`name.clone()`).\n"
|
|
"* Rust makes it harder than C++ to inadvertently create copies by making move semantics the default, and by forcing "
|
|
"programmers to make clones explicit."
|
|
msgstr ""
|
|
"* Com a primeira chamada para `say_hello`, `main` desiste da ownership de `name`. Depois disso, `name` não pode mais ser "
|
|
"usado dentro de `main`.\n"
|
|
"* A memória heap alocada para `name` será liberada no final da função `say_hello`.\n"
|
|
"* `main` pode manter a ownership se passar `name` como uma referência (`&name`) e se `say_hello` aceitar uma referência "
|
|
"como um parâmetro.\n"
|
|
"* Alternativamente, `main` pode passar um clone de `name` na primeira chamada (`name.clone()`).\n"
|
|
"* Rust torna mais difícil do que C++ criar cópias inadvertidamente, tornando a semântica de movimento o padrão e forçando "
|
|
"os programadores a tornar os clones explícitos."
|
|
|
|
#: src/ownership/copy-clone.md:1
|
|
msgid "# Copying and Cloning"
|
|
msgstr "# Copiar e clonar"
|
|
|
|
#: src/ownership/copy-clone.md:3
|
|
msgid "While move semantics are the default, certain types are copied by default:"
|
|
msgstr "Embora a semântica de movimento seja o padrão, certos tipos são copiados por padrão:"
|
|
|
|
#: src/ownership/copy-clone.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let x = 42;\n"
|
|
" let y = x;\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" println!(\"y: {y}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let x = 42;\n"
|
|
" let y = x;\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" println!(\"y: {y}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/ownership/copy-clone.md:14
|
|
msgid "These types implement the `Copy` trait."
|
|
msgstr "Esses tipos implementam o recurso `Copy`."
|
|
|
|
#: src/ownership/copy-clone.md:16
|
|
msgid "You can opt-in your own types to use copy semantics:"
|
|
msgstr "Você pode ativar seus próprios tipos para usar a semântica de cópia:"
|
|
|
|
#: src/ownership/copy-clone.md:18
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Copy, Clone, Debug)]\n"
|
|
"struct Point(i32, i32);"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[derive(Copy, Clone, Debug)]\n"
|
|
"struct Point(i32, i32);"
|
|
|
|
#: src/ownership/copy-clone.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p1 = Point(3, 4);\n"
|
|
" let p2 = p1;\n"
|
|
" println!(\"p1: {p1:?}\");\n"
|
|
" println!(\"p2: {p2:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p1 = Point(3, 4);\n"
|
|
" let p2 = p1;\n"
|
|
" println!(\"p1: {p1:?}\");\n"
|
|
" println!(\"p2: {p2:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/ownership/copy-clone.md:30
|
|
msgid ""
|
|
"* After the assignment, both `p1` and `p2` own their own data.\n"
|
|
"* We can also use `p1.clone()` to explicitly copy the data."
|
|
msgstr ""
|
|
"* Após a atribuição, tanto `p1` quanto `p2` possuem seus próprios dados.\n"
|
|
"* Também podemos usar `p1.clone()` para copiar explicitamente os dados."
|
|
|
|
#: src/ownership/copy-clone.md:35
|
|
msgid "Copying and cloning are not the same thing:"
|
|
msgstr "Copiar e clonar não são a mesma coisa:"
|
|
|
|
#: src/ownership/copy-clone.md:37
|
|
msgid ""
|
|
"* Copying refers to bitwise copies of memory regions and does not work on arbitrary objects.\n"
|
|
"* Copying does not allow for custom logic (unlike copy constructors in C++).\n"
|
|
"* Cloning is a more general operation and also allows for custom behavior by implementing the `Clone` trait.\n"
|
|
"* Copying does not work on types that implement the `Drop` trait."
|
|
msgstr ""
|
|
"* A cópia refere-se a cópias bit a bit de regiões de memória e não funciona em objetos arbitrários.\n"
|
|
"* A cópia não permite lógica personalizada (ao contrário dos construtores de cópia em C++).\n"
|
|
"* A clonagem é uma operação mais geral e também permite um comportamento personalizado implementando a trait `Clone`.\n"
|
|
"* A cópia não funciona em tipos que implementam a característica `Drop`."
|
|
|
|
#: src/ownership/copy-clone.md:42 src/ownership/lifetimes-function-calls.md:29
|
|
msgid "In the above example, try the following:"
|
|
msgstr "No exemplo acima, tente o seguinte:"
|
|
|
|
#: src/ownership/copy-clone.md:44
|
|
msgid ""
|
|
"* Add a `String` field to `struct Point`. It will not compile because `String` is not a `Copy` type.\n"
|
|
"* Remove `Copy` from the `derive` attribute. The compiler error is now in the `println!` for `p1`.\n"
|
|
"* Show that it works if you clone `p1` instead."
|
|
msgstr ""
|
|
"* Adicione um campo `String` ao `struct Point`. Não irá compilar porque `String` não é um tipo `Copy`.\n"
|
|
"* Remova `Copy` do atributo `derive`. O erro do compilador agora está no `println!` para `p1`.\n"
|
|
"* Mostre que funciona se você clonar `p1` em vez disso."
|
|
|
|
#: src/ownership/copy-clone.md:48
|
|
msgid ""
|
|
"If students ask about `derive`, it is sufficient to say that this is a way to generate code in Rust\n"
|
|
"at compile time. In this case the default implementations of `Copy` and `Clone` traits are generated.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"Se os alunos perguntarem sobre `derive`, basta dizer que esta é uma forma de gerar código em Rust\n"
|
|
"em tempo de compilação. Nesse caso, as implementações padrão dos traits `Copy` e `Clone` são geradas.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/ownership/borrowing.md:1
|
|
msgid "# Borrowing"
|
|
msgstr "# Empréstimo"
|
|
|
|
#: src/ownership/borrowing.md:3
|
|
msgid ""
|
|
"Instead of transferring ownership when calling a function, you can let a\n"
|
|
"function _borrow_ the value:"
|
|
msgstr ""
|
|
"Em vez de transferir a ownership ao chamar uma função, você pode permitir que um\n"
|
|
"função _emprestar_ o valor:"
|
|
|
|
#: src/ownership/borrowing.md:6 src/ownership/lifetimes-function-calls.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Point(i32, i32);"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Point(i32, i32);"
|
|
|
|
#: src/ownership/borrowing.md:10
|
|
msgid ""
|
|
"fn add(p1: &Point, p2: &Point) -> Point {\n"
|
|
" Point(p1.0 + p2.0, p1.1 + p2.1)\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn add(p1: &Point, p2: &Point) -> Point {\n"
|
|
" Point(p1.0 + p2.0, p1.1 + p2.1)\n"
|
|
"}"
|
|
|
|
#: src/ownership/borrowing.md:14
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p1 = Point(3, 4);\n"
|
|
" let p2 = Point(10, 20);\n"
|
|
" let p3 = add(&p1, &p2);\n"
|
|
" println!(\"{p1:?} + {p2:?} = {p3:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p1 = Point(3, 4);\n"
|
|
" let p2 = Point(10, 20);\n"
|
|
" let p3 = add(&p1, &p2);\n"
|
|
" println!(\"{p1:?} + {p2:?} = {p3:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/ownership/borrowing.md:22
|
|
msgid ""
|
|
"* The `add` function _borrows_ two points and returns a new point.\n"
|
|
"* The caller retains ownership of the inputs."
|
|
msgstr ""
|
|
"* A função `add` _pega emprestado_ dois Points e retorna um novo Point.\n"
|
|
"* O chamador mantém a ownership das entradas."
|
|
|
|
#: src/ownership/borrowing.md:27
|
|
msgid ""
|
|
"Notes on stack returns:\n"
|
|
msgstr ""
|
|
"Notas sobre retornos de pilha:\n"
|
|
|
|
msgid ""
|
|
"* Demonstrate that the return from `add` is cheap because the compiler can eliminate the copy operation. Change the above "
|
|
"code to print stack addresses and run it on the [Playground]. In the \"DEBUG\" optimization level, the addresses should "
|
|
"change, while the stay the same when changing to the \"RELEASE\" setting:"
|
|
msgstr ""
|
|
"* Demonstre que o retorno de `add` é barato porque o compilador pode eliminar a operação de cópia. Altere o código acima "
|
|
"para imprimir endereços de pilha e execute-o no [Playground]. No nível de otimização \"DEBUG\", os endereços devem mudar, "
|
|
"enquanto os permanecem os mesmos ao mudar para a configuração \"RELEASE\":"
|
|
|
|
#: src/ownership/borrowing.md:40
|
|
msgid ""
|
|
"* The Rust compiler can do return value optimization (RVO).\n"
|
|
"* In C++, copy elision has to be defined in the language specification because constructors can have side effects. In Rust, "
|
|
"this is not an issue at all. If RVO did not happen, Rust will always performs a simple and efficient `memcpy` copy."
|
|
msgstr ""
|
|
"* O compilador Rust pode fazer otimização de valor de retorno (RVO).\n"
|
|
"* Em C++, a elisão de cópia deve ser definida na especificação da linguagem porque os construtores podem ter efeitos "
|
|
"colaterais. Em Rust, isso não é um problema. Se o RVO não aconteceu, o Rust sempre executará uma cópia `memcpy` simples e "
|
|
"eficiente."
|
|
|
|
#: src/ownership/borrowing.md:53
|
|
msgid "[Playground]: https://play.rust-lang.org/"
|
|
msgstr "[Playground]: https://play.rust-lang.org/"
|
|
|
|
#: src/ownership/shared-unique-borrows.md:1
|
|
msgid "# Shared and Unique Borrows"
|
|
msgstr "# Empréstimos compartilhados e exclusivos"
|
|
|
|
#: src/ownership/shared-unique-borrows.md:3
|
|
msgid "Rust puts constraints on the ways you can borrow values:"
|
|
msgstr "O Rust coloca restrições nas formas como você pode emprestar valores:"
|
|
|
|
#: src/ownership/shared-unique-borrows.md:5
|
|
msgid ""
|
|
"* You can have one or more `&T` values at any given time, _or_\n"
|
|
"* You can have exactly one `&mut T` value."
|
|
msgstr ""
|
|
"* Você pode ter um ou mais valores `&T` a qualquer momento, _ou_\n"
|
|
"* Você pode ter exatamente um valor `&mut T`."
|
|
|
|
#: src/ownership/shared-unique-borrows.md:8
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let mut a: i32 = 10;\n"
|
|
" let b: &i32 = &a;"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let mut a: i32 = 10;\n"
|
|
" let b: &i32 = &a;"
|
|
|
|
#: src/ownership/shared-unique-borrows.md:13
|
|
msgid ""
|
|
" {\n"
|
|
" let c: &mut i32 = &mut a;\n"
|
|
" *c = 20;\n"
|
|
" }"
|
|
msgstr ""
|
|
" {\n"
|
|
" let c: &mut i32 = &mut a;\n"
|
|
" *c = 20;\n"
|
|
" }"
|
|
|
|
#: src/ownership/shared-unique-borrows.md:18 src/std/rc.md:13
|
|
msgid ""
|
|
" println!(\"a: {a}\");\n"
|
|
" println!(\"b: {b}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" println!(\"a: {a}\");\n"
|
|
" println!(\"b: {b}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/ownership/shared-unique-borrows.md:25
|
|
msgid ""
|
|
"* The above code does not compile because `a` is borrowed as mutable (through `c`) and as immutable (through `b`) at the "
|
|
"same time.\n"
|
|
"* Move the `println!` statement for `b` before the scope that introduces `c` to make the code compile.\n"
|
|
"* After that change, the compiler realizes that `b` is only ever used before the new mutable borrow of `a` through `c`. "
|
|
"This is a feature of the borrow checker called \"non-lexical lifetimes\"."
|
|
msgstr ""
|
|
"* O código acima não compila porque `a` é emprestado como mutável (através de `c`) e como imutável (através de `b`) ao "
|
|
"mesmo tempo.\n"
|
|
"* Mova a instrução `println!` para `b` antes do escopo que introduz `c` para fazer o código compilar.\n"
|
|
"* Após essa alteração, o compilador percebe que `b` só é usado antes do novo empréstimo mutável de `a` a `c`. Este é um "
|
|
"recurso do verificador de empréstimo chamado \"tempo de vida não lexical\"."
|
|
|
|
#: src/ownership/lifetimes.md:1
|
|
msgid "# Lifetimes"
|
|
msgstr "# Tempos de vida"
|
|
|
|
#: src/ownership/lifetimes.md:3
|
|
msgid "A borrowed value has a _lifetime_:"
|
|
msgstr "Um valor emprestado tem um _lifetime_:"
|
|
|
|
#: src/ownership/lifetimes.md:5
|
|
msgid ""
|
|
"* The lifetime can be elided: `add(p1: &Point, p2: &Point) -> Point`.\n"
|
|
"* Lifetimes can also be explicit: `&'a Point`, `&'document str`.\n"
|
|
"* Read `&'a Point` as \"a borrowed `Point` which is valid for at least the\n"
|
|
" lifetime `a`\".\n"
|
|
"* Lifetimes are always inferred by the compiler: you cannot assign a lifetime\n"
|
|
" yourself.\n"
|
|
" * Lifetime annotations create constraints; the compiler verifies that there is\n"
|
|
" a valid solution."
|
|
msgstr ""
|
|
"* O tempo de vida pode ser excluído: `add(p1: &Point, p2: &Point) -> Point`.\n"
|
|
"* Tempos de vida também podem ser explícitos: `&'a Point`, `&'document str`.\n"
|
|
"* Leia `&'um Point` como \"um `Point` emprestado que é válido por pelo menos o\n"
|
|
" tempo de vida `a`\".\n"
|
|
"* Os tempos de vida são sempre inferidos pelo compilador: você não pode atribuir um tempo de vida\n"
|
|
" você mesmo.\n"
|
|
" * As anotações vitalícias criam restrições; o compilador verifica se há\n"
|
|
" uma solução válida."
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:1
|
|
msgid "# Lifetimes in Function Calls"
|
|
msgstr "# Tempos de vida em Chamadas de Função"
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:3
|
|
msgid "In addition to borrowing its arguments, a function can return a borrowed value:"
|
|
msgstr "Além de emprestar seus argumentos, uma função pode retornar um valor emprestado:"
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:9
|
|
msgid ""
|
|
"fn left_most<'a>(p1: &'a Point, p2: &'a Point) -> &'a Point {\n"
|
|
" if p1.0 < p2.0 { p1 } else { p2 }\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn left_most<'a>(p1: &'a Point, p2: &'a Point) -> &'a Point {\n"
|
|
" if p1.0 < p2.0 { p1 } else { p2 }\n"
|
|
"}"
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:13
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p1: Point = Point(10, 10);\n"
|
|
" let p2: Point = Point(20, 20);\n"
|
|
" let p3: &Point = left_most(&p1, &p2);\n"
|
|
" println!(\"left-most point: {:?}\", p3);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p1: Point = Point(10, 10);\n"
|
|
" let p2: Point = Point(20, 20);\n"
|
|
" let p3: &Point = left_most(&p1, &p2);\n"
|
|
" println!(\"Point mais à esquerda: {:?}\", p3);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:21
|
|
msgid ""
|
|
"* `'a` is a generic parameter, it is inferred by the compiler.\n"
|
|
"* Lifetimes start with `'` and `'a` is a typical default name.\n"
|
|
"* Read `&'a Point` as \"a borrowed `Point` which is valid for at least the\n"
|
|
" lifetime `a`\".\n"
|
|
" * The _at least_ part is important when parameters are in different scopes."
|
|
msgstr ""
|
|
"* `'a` é um parâmetro genérico, é inferido pelo compilador.\n"
|
|
"* Os tempos de vida começam com `'` e `'a` é um name padrão típico.\n"
|
|
"* Leia `&'um Point` como \"um `Point` emprestado que é válido por pelo menos o\n"
|
|
" tempo de vida `a`\".\n"
|
|
" * A parte _pelo menos_ é importante quando os parâmetros estão em escopos diferentes."
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:31
|
|
msgid ""
|
|
"* Move the declaration of `p2` and `p3` into a a new scope (`{ ... }`), resulting in the following code:\n"
|
|
" ```rust,ignore\n"
|
|
" #[derive(Debug)]\n"
|
|
" struct Point(i32, i32);"
|
|
msgstr ""
|
|
"* Mova a declaração de `p2` e `p3` para um novo escopo (`{ ... }`), resultando no seguinte código:\n"
|
|
" ```rust, ignore\n"
|
|
" #[derive(Debug)]\n"
|
|
" struct Point(i32, i32);"
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:36
|
|
msgid ""
|
|
" fn left_most<'a>(p1: &'a Point, p2: &'a Point) -> &'a Point {\n"
|
|
" if p1.0 < p2.0 { p1 } else { p2 }\n"
|
|
" }"
|
|
msgstr ""
|
|
" fn left_most<'a>(p1: &'a Point, p2: &'a Point) -> &'a Point {\n"
|
|
" if p1.0 < p2.0 { p1 } else { p2 }\n"
|
|
" }"
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:40
|
|
msgid ""
|
|
" fn main() {\n"
|
|
" let p1: Point = Point(10, 10);\n"
|
|
" let p3: &Point;\n"
|
|
" {\n"
|
|
" let p2: Point = Point(20, 20);\n"
|
|
" p3 = left_most(&p1, &p2);\n"
|
|
" }\n"
|
|
" println!(\"left-most point: {:?}\", p3);\n"
|
|
" }\n"
|
|
" ```\n"
|
|
" Note how this does not compile since `p3` outlives `p2`."
|
|
msgstr ""
|
|
" fn main() {\n"
|
|
" let p1: Point = Point(10, 10);\n"
|
|
" let p3: &Point;\n"
|
|
" {\n"
|
|
" let p2: Point = Point(20, 20);\n"
|
|
" p3 = left_most(&p1, &p2);\n"
|
|
" }\n"
|
|
" println!(\"left-most point: {:?}\", p3);\n"
|
|
" }\n"
|
|
" ```\n"
|
|
" Observe como isso não compila, pois `p3` sobrevive a `p2`."
|
|
|
|
#: src/ownership/lifetimes-function-calls.md:52
|
|
msgid ""
|
|
"* Reset the workspace and change the function signature to `fn left_most<'a, 'b>(p1: &'a Point, p2: &'a Point) -> &'b "
|
|
"Point`. This will not compile because the relationship between the lifetimes `'a` and `'b` is unclear.\n"
|
|
"* Another way to explain it:\n"
|
|
" * Two references to two values are borrowed by a function and the function returns\n"
|
|
" another reference.\n"
|
|
" * It must have come from one of those two inputs (or from a global variable).\n"
|
|
" * Which one is it? The compiler needs to to know, so at the call site the returned reference is not used\n"
|
|
" for longer than a variable from where the reference came from."
|
|
msgstr ""
|
|
"* Redefina o espaço de trabalho e altere a assinatura da função para `fn left_most<'a, 'b>(p1: &'a Point, p2: &'a Point) -> "
|
|
"&'b Point`. Isso não será compilado porque a relação entre os tempos de vida `'a` e `'b` não é clara.\n"
|
|
"* Outra forma de explicar:\n"
|
|
" * Duas referências a dois valores são emprestadas por uma função e a função retorna\n"
|
|
" outra referência.\n"
|
|
" * Deve ter vindo de uma dessas duas entradas (ou de uma variável global).\n"
|
|
" * Qual é? O compilador precisa saber, portanto, no local da chamada, a referência retornada não é usada\n"
|
|
" por mais tempo do que uma variável de onde veio a referência."
|
|
|
|
#: src/ownership/lifetimes-data-structures.md:1
|
|
msgid "# Lifetimes in Data Structures"
|
|
msgstr "# Tempos de vida em Structs de dados"
|
|
|
|
#: src/ownership/lifetimes-data-structures.md:3
|
|
msgid "If a data type stores borrowed data, it must be annotated with a lifetime:"
|
|
msgstr "Se um tipo de dados armazena dados emprestados, ele deve ser anotado com um tempo de vida:"
|
|
|
|
#: src/ownership/lifetimes-data-structures.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Highlight<'doc>(&'doc str);"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Highlight<'doc>(&'doc str);"
|
|
|
|
#: src/ownership/lifetimes-data-structures.md:9
|
|
msgid ""
|
|
"fn erase(text: String) {\n"
|
|
" println!(\"Bye {text}!\");\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn erase(texto: String) {\n"
|
|
" println!(\"Tchau {texto}!\");\n"
|
|
"}"
|
|
|
|
#: src/ownership/lifetimes-data-structures.md:13
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let text = String::from(\"The quick brown fox jumps over the lazy dog.\");\n"
|
|
" let fox = Highlight(&text[4..19]);\n"
|
|
" let dog = Highlight(&text[35..43]);\n"
|
|
" // erase(text);\n"
|
|
" println!(\"{fox:?}\");\n"
|
|
" println!(\"{dog:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let text = String::from(\"The quick brown fox jumps over the lazy dog.\");\n"
|
|
" let fox = Highlight(&text[4..19]);\n"
|
|
" let dog = Highlight(&text[35..43]);\n"
|
|
" // erase(texto);\n"
|
|
" println!(\"{fox:?}\");\n"
|
|
" println!(\"{dog:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/ownership/lifetimes-data-structures.md:25
|
|
msgid ""
|
|
"* In the above example, the annotation on `Highlight` enforces that the data underlying the contained `&str` lives at least "
|
|
"as long as any instance of `Highlight` that uses that data.\n"
|
|
"* If `text` is consumed before the end of the lifetime of `fox` (or `dog`), the borrow checker throws an error.\n"
|
|
"* Types with borrowed data force users to hold on to the original data. This can be useful for creating lightweight views, "
|
|
"but it generally makes them somewhat harder to use.\n"
|
|
"* When possible, make data structures own their data directly.\n"
|
|
"* Some structs with multiple references inside can have more than one lifetime annotation. This can be necessary if there "
|
|
"is a need to describe lifetime relationships between the references themselves, in addition to the lifetime of the struct "
|
|
"itself. Those are very advanced use cases.\n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* No exemplo acima, a anotação em `Highlight` impõe que os dados subjacentes ao `&str` contido vivam pelo menos tanto "
|
|
"quanto qualquer instância de `Highlight` que usa esses dados.\n"
|
|
"* Se `text` for consumido antes do final do tempo de vida de `fox` (ou `dog`), o verificador de empréstimo lançará um "
|
|
"erro.\n"
|
|
"* Tipos com dados emprestados forçam os usuários a manter os dados originais. Isso pode ser útil para criar exibições "
|
|
"leves, mas geralmente as torna um pouco mais difíceis de usar.\n"
|
|
"* Quando possível, faça com que as Structs de dados possuam seus dados diretamente.\n"
|
|
"* Algumas Structs com várias referências internas podem ter mais de uma anotação vitalícia. Isso pode ser necessário se "
|
|
"houver necessage de descrever relacionamentos de tempo de vida entre as próprias referências, além do tempo de vida da "
|
|
"própria estrutura. Esses são casos de uso muito avançados.\n"
|
|
"</details>"
|
|
|
|
#: src/exercises/day-1/afternoon.md:1
|
|
msgid "# Day 1: Afternoon Exercises"
|
|
msgstr "# Dia 1: Exercícios da Tarde"
|
|
|
|
#: src/exercises/day-1/afternoon.md:3
|
|
msgid "We will look at two things:"
|
|
msgstr "Veremos duas coisas:"
|
|
|
|
#: src/exercises/day-1/afternoon.md:5
|
|
msgid "* A small book library,"
|
|
msgstr "* Uma pequena biblioteca de livros,"
|
|
|
|
#: src/exercises/day-1/afternoon.md:7
|
|
msgid "* Iterators and ownership (hard)."
|
|
msgstr "* Iteradores e ownership (difícil)."
|
|
|
|
#: src/exercises/day-1/afternoon.md:13 src/exercises/day-2/afternoon.md:9
|
|
msgid "[solutions]: solutions-afternoon.md"
|
|
msgstr "[soluções]: soluções-tarde.md"
|
|
|
|
#: src/exercises/day-1/book-library.md:1
|
|
msgid "# Designing a Library"
|
|
msgstr "# Projetando uma biblioteca"
|
|
|
|
#: src/exercises/day-1/book-library.md:3
|
|
msgid ""
|
|
"We will learn much more about structs and the `Vec<T>` type tomorrow. For now,\n"
|
|
"you just need to know part of its API:"
|
|
msgstr ""
|
|
"Aprenderemos muito mais sobre structs e o tipo `Vec<T>` amanhã. Por agora,\n"
|
|
"você só precisa conhecer parte de sua API:"
|
|
|
|
#: src/exercises/day-1/book-library.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut vec = vec![10, 20];\n"
|
|
" vec.push(30);\n"
|
|
" println!(\"middle value: {}\", vec[vec.len() / 2]);\n"
|
|
" for item in vec.iter() {\n"
|
|
" println!(\"item: {item}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut vec = vec![10, 20];\n"
|
|
" vec.push(30);\n"
|
|
" println!(\"valor do meio: {}\", vec[vec.len() / 2]);\n"
|
|
" for item in vec.iter() {\n"
|
|
" println!(\"item: {item}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/book-library.md:17
|
|
msgid ""
|
|
"Use this to create a library application. Copy the code below to\n"
|
|
"<https://play.rust-lang.org/> and update the types to make it compile:"
|
|
msgstr ""
|
|
"Use isso para criar um aplicativo de biblioteca. Copie o código abaixo para\n"
|
|
"<https://play.rust-lang.org/> e atualize os tipos para compilar:"
|
|
|
|
#: src/exercises/day-1/book-library.md:24
|
|
msgid ""
|
|
"struct Library {\n"
|
|
" books: Vec<Book>,\n"
|
|
"}"
|
|
msgstr ""
|
|
"struct Library {\n"
|
|
" books: Vec<Book>,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/book-library.md:28 src/exercises/day-1/solutions-afternoon.md:27
|
|
#, fuzzy
|
|
msgid ""
|
|
"struct Book {\n"
|
|
" title: String,\n"
|
|
" year: u16,\n"
|
|
"}"
|
|
msgstr ""
|
|
"struct Book {\n"
|
|
" título: String,\n"
|
|
" year: u16,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/book-library.md:33 src/exercises/day-1/solutions-afternoon.md:32
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl Book {\n"
|
|
" // This is a constructor, used below.\n"
|
|
" fn new(title: &str, year: u16) -> Book {\n"
|
|
" Book {\n"
|
|
" title: String::from(title),\n"
|
|
" year,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Book {\n"
|
|
" // Este é um construtor, usado abaixo.\n"
|
|
" fn new(title: &str, ano: u16) -> Book {\n"
|
|
" Book {\n"
|
|
" title: String::from(title),\n"
|
|
" year,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/book-library.md:43
|
|
msgid ""
|
|
"// This makes it possible to print Book values with {}.\n"
|
|
"impl std::fmt::Display for Book {\n"
|
|
" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {\n"
|
|
" write!(f, \"{} ({})\", self.title, self.year)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"// Isso torna possível imprimir valores de livro com {}.\n"
|
|
"impl std::fmt::Display for Book {\n"
|
|
" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {\n"
|
|
" write!(f, \"{} ({})\", self.title, self.year)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/book-library.md:50
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl Library {\n"
|
|
" fn new() -> Library {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl Library {\n"
|
|
" fn new() -> Library {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/book-library.md:55
|
|
msgid ""
|
|
" //fn len(self) -> usize {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
msgstr ""
|
|
" //fn len(self) -> usize {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
|
|
#: src/exercises/day-1/book-library.md:59
|
|
msgid ""
|
|
" //fn is_empty(self) -> bool {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
msgstr ""
|
|
" //fn is_empty(self) -> bool {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
|
|
#: src/exercises/day-1/book-library.md:63
|
|
msgid ""
|
|
" //fn add_book(self, book: Book) {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
msgstr ""
|
|
" //fn add_book(self, book: Book) {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
|
|
#: src/exercises/day-1/book-library.md:67
|
|
msgid ""
|
|
" //fn print_books(self) {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
msgstr ""
|
|
" //fn print_books(self) {\n"
|
|
" // unimplemented!()\n"
|
|
" //}"
|
|
|
|
#: src/exercises/day-1/book-library.md:71
|
|
msgid ""
|
|
" //fn oldest_book(self) -> Option<&Book> {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
"}"
|
|
msgstr ""
|
|
" //fn oldest_book(self) -> Option<&Book> {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/book-library.md:76
|
|
msgid ""
|
|
"// This shows the desired behavior. Uncomment the code below and\n"
|
|
"// implement the missing methods. You will need to update the\n"
|
|
"// method signatures, including the \"self\" parameter! You may\n"
|
|
"// also need to update the variable bindings within main.\n"
|
|
"fn main() {\n"
|
|
" let library = Library::new();"
|
|
msgstr ""
|
|
"// Isso mostra o comportamento desejado. Descomente o código abaixo e\n"
|
|
"// implementa os métodos ausentes. Você precisará atualizar o\n"
|
|
"// assinaturas de método, incluindo o parâmetro \"self\"! Você pode\n"
|
|
"// também precisa atualizar as ligações de variáveis dentro de main.\n"
|
|
"fn main() {\n"
|
|
" let library = Library::new();"
|
|
|
|
#: src/exercises/day-1/book-library.md:83
|
|
#, fuzzy
|
|
msgid ""
|
|
" //println!(\"Our library is empty: {}\", library.is_empty());\n"
|
|
" //\n"
|
|
" //library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" //library.add_book(Book::new(\"Alice's Adventures in Wonderland\", 1865));\n"
|
|
" //\n"
|
|
" //library.print_books();\n"
|
|
" //\n"
|
|
" //match library.oldest_book() {\n"
|
|
" // Some(book) => println!(\"My oldest book is {book}\"),\n"
|
|
" // None => println!(\"My library is empty!\"),\n"
|
|
" //}\n"
|
|
" //\n"
|
|
" //println!(\"Our library has {} books\", library.len());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" //println!(\"Nossa biblioteca está vazia: {}\", library.is_empty());\n"
|
|
" //\n"
|
|
" //library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" //library.add_book(Book::new(\"Alice's Adventures in Wonderland\", 1865));\n"
|
|
" //\n"
|
|
" //library.print_books();\n"
|
|
" //\n"
|
|
" //corresponde à library.oldest_book() {\n"
|
|
" // Some(book) => println!(\"Meu livro mais antigo é {book}\"),\n"
|
|
" // None => println!(\"Minha biblioteca está vazia!\"),\n"
|
|
" //}\n"
|
|
" //\n"
|
|
" //println!(\"Nossa biblioteca tem {} livros\", library.len());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/book-library.md:99
|
|
msgid ""
|
|
"[Solution](solutions-afternoon.md#designing-a-library)"
|
|
msgstr ""
|
|
"[Solution](solutions-afternoon.md#designing-a-library)"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:1
|
|
msgid "# Iterators and Ownership"
|
|
msgstr "# Iteradores e ownership"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:3
|
|
msgid ""
|
|
"The ownership model of Rust affects many APIs. An example of this is the\n"
|
|
"[`Iterator`](https://doc.rust-lang.org/std/iter/trait.Iterator.html) and\n"
|
|
"[`IntoIterator`](https://doc.rust-lang.org/std/iter/trait.IntoIterator.html)\n"
|
|
"traits."
|
|
msgstr ""
|
|
"O modelo de ownership do Rust afeta muitas APIs. Um exemplo disso é o\n"
|
|
"[`Iterator`](https://doc.rust-lang.org/std/iter/trait.Iterator.html) e\n"
|
|
"[`IntoIterator`](https://doc.rust-lang.org/std/iter/trait.IntoIterator.html)\n"
|
|
"características."
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:8
|
|
msgid "## `Iterator`"
|
|
msgstr "## `Iterador`"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:10
|
|
msgid ""
|
|
"Traits are like interfaces: they describe behavior (methods) for a type. The\n"
|
|
"`Iterator` trait simply says that you can call `next` until you get `None` back:"
|
|
msgstr ""
|
|
"Os traits são como interfaces: eles descrevem o comportamento (métodos) para um tipo. o\n"
|
|
"O trait `Iterator` simplesmente diz que você pode chamar `next` até obter `None` de volta:"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:13
|
|
msgid ""
|
|
"```rust\n"
|
|
"pub trait Iterator {\n"
|
|
" type Item;\n"
|
|
" fn next(&mut self) -> Option<Self::Item>;\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"pub trait Iterator {\n"
|
|
" type Item;\n"
|
|
" fn next(&mut self) -> Option<Self::Item>;\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:20
|
|
msgid "You use this trait like this:"
|
|
msgstr "Você usa esse trait assim:"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:22
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<i8> = vec![10, 20, 30];\n"
|
|
" let mut iter = v.iter();"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<i8> = vec![10, 20, 30];\n"
|
|
" let mut iter = v.iter();"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:27
|
|
msgid ""
|
|
" println!(\"v[0]: {:?}\", iter.next());\n"
|
|
" println!(\"v[1]: {:?}\", iter.next());\n"
|
|
" println!(\"v[2]: {:?}\", iter.next());\n"
|
|
" println!(\"No more items: {:?}\", iter.next());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" println!(\"v[0]: {:?}\", iter.next());\n"
|
|
" println!(\"v[1]: {:?}\", iter.next());\n"
|
|
" println!(\"v[2]: {:?}\", iter.next());\n"
|
|
" println!(\"Sem mais itens: {:?}\", iter.next());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:34
|
|
msgid "What is the type returned by the iterator? Test your answer here:"
|
|
msgstr "Qual é o tipo retornado pelo iterador? Teste sua resposta aqui:"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:36
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<i8> = vec![10, 20, 30];\n"
|
|
" let mut iter = v.iter();"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<i8> = vec![10, 20, 30];\n"
|
|
" let mut iter = v.iter();"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:41 src/exercises/day-1/iterators-and-ownership.md:78
|
|
msgid ""
|
|
" let v0: Option<..> = iter.next();\n"
|
|
" println!(\"v0: {v0:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" let v0: Option<..> = iter.next();\n"
|
|
" println!(\"v0: {v0:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:46
|
|
msgid "Why is this type used?"
|
|
msgstr "Por que esse tipo?"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:48
|
|
msgid "## `IntoIterator`"
|
|
msgstr "## `IntoIterator`"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:50
|
|
msgid ""
|
|
"The `Iterator` trait tells you how to _iterate_ once you have created an\n"
|
|
"iterator. The related trait `IntoIterator` tells you how to create the iterator:"
|
|
msgstr ""
|
|
"O trait `Iterator` informa como _iterar_ depois de criar um\n"
|
|
"iterador. A característica relacionada `IntoIterator` informa como criar o iterador:"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:53
|
|
msgid ""
|
|
"```rust\n"
|
|
"pub trait IntoIterator {\n"
|
|
" type Item;\n"
|
|
" type IntoIter: Iterator<Item = Self::Item>;"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"pub trait IntoIterator {\n"
|
|
" type Item;\n"
|
|
" type IntoIter: Iterator<Item = Self::Item>;"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:58
|
|
msgid ""
|
|
" fn into_iter(self) -> Self::IntoIter;\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" fn into_iter(self) -> Self::IntoIter;\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:62
|
|
msgid ""
|
|
"The syntax here means that every implementation of `IntoIterator` must\n"
|
|
"declare two types:"
|
|
msgstr ""
|
|
"A sintaxe aqui significa que toda implementação de `IntoIterator` deve\n"
|
|
"declarar dois tipos:"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:65
|
|
msgid ""
|
|
"* `Item`: the type we iterate over, such as `i8`,\n"
|
|
"* `IntoIter`: the `Iterator` type returned by the `into_iter` method."
|
|
msgstr ""
|
|
"* `Item`: o tipo sobre o qual iteramos, como `i8`,\n"
|
|
"* `IntoIter`: o tipo `Iterator` retornado pelo método `into_iter`."
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:68
|
|
msgid ""
|
|
"Note that `IntoIter` and `Item` are linked: the iterator must have the same\n"
|
|
"`Item` type, which means that it returns `Option<Item>`"
|
|
msgstr ""
|
|
"Observe que `IntoIter` e `Item` estão vinculados: o iterador deve ter o mesmo\n"
|
|
"Tipo `Item`, o que significa que ele retorna `Option<Item>`"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:71
|
|
msgid "Like before, what is the type returned by the iterator?"
|
|
msgstr "Como antes, qual é o tipo retornado pelo iterador?"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:73
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<String> = vec![String::from(\"foo\"), String::from(\"bar\")];\n"
|
|
" let mut iter = v.into_iter();"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<String> = vec![String::from(\"foo\"), String::from(\"bar\")];\n"
|
|
" let mut iter = v.into_iter();"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:83
|
|
msgid "## `for` Loops"
|
|
msgstr "## `for` Loops"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:85
|
|
msgid ""
|
|
"Now that we know both `Iterator` and `IntoIterator`, we can build `for` loops.\n"
|
|
"They call `into_iter()` on an expression and iterates over the resulting\n"
|
|
"iterator:"
|
|
msgstr ""
|
|
"Agora que conhecemos `Iterator` e `IntoIterator`, podemos construir loops `for`.\n"
|
|
"Eles chamam `into_iter()` em uma expressão e itera sobre o resultado\n"
|
|
"iterador:"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:89
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<String> = vec![String::from(\"foo\"), String::from(\"bar\")];"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let v: Vec<String> = vec![String::from(\"foo\"), String::from(\"bar\")];"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:93
|
|
msgid ""
|
|
" for word in &v {\n"
|
|
" println!(\"word: {word}\");\n"
|
|
" }"
|
|
msgstr ""
|
|
" for word in &v {\n"
|
|
" println!(\"word: {word}\");\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:97
|
|
msgid ""
|
|
" for word in v {\n"
|
|
" println!(\"word: {word}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" for word in v {\n"
|
|
" println!(\"word: {word}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:103
|
|
msgid "What is the type of `word` in each loop?"
|
|
msgstr "Qual é o tipo de `palavra` em cada loop?"
|
|
|
|
#: src/exercises/day-1/iterators-and-ownership.md:105
|
|
msgid ""
|
|
"Experiment with the code above and then consult the documentation for [`impl\n"
|
|
"IntoIterator for\n"
|
|
"&Vec<T>`](https://doc.rust-lang.org/std/vec/struct.Vec.html#impl-IntoIterator-for-%26%27a%20Vec%3CT%2C%20A%3E)\n"
|
|
"and [`impl IntoIterator for\n"
|
|
"Vec<T>`](https://doc.rust-lang.org/std/vec/struct.Vec.html#impl-IntoIterator-for-Vec%3CT%2C%20A%3E)\n"
|
|
"to check your answers."
|
|
msgstr ""
|
|
"Experimente o código acima e depois consulte a documentação para [`impl\n"
|
|
"IntoIterator para\n"
|
|
"&Vec<T>`](https://doc.rust-lang.org/std/vec/struct.Vec.html#impl-IntoIterator-for-%26%27a%20Vec%3CT%2C%20A%3E)\n"
|
|
"e [`impl IntoIterator para\n"
|
|
"Vec<T>`](https://doc.rust-lang.org/std/vec/struct.Vec.html#impl-IntoIterator-for-Vec%3CT%2C%20A%3E)\n"
|
|
"para verificar suas respostas."
|
|
|
|
#: src/welcome-day-2.md:1
|
|
msgid "# Welcome to Day 2"
|
|
msgstr "# Bem-vindo ao Dia 2"
|
|
|
|
#: src/welcome-day-2.md:3
|
|
msgid "Now that we have seen a fair amount of Rust, we will continue with:"
|
|
msgstr "Agora que vimos uma boa quantage de Rust, continuaremos com:"
|
|
|
|
#: src/welcome-day-2.md:5
|
|
msgid "* Structs, enums, methods."
|
|
msgstr "* Structs, enums, métodos."
|
|
|
|
#: src/welcome-day-2.md:7
|
|
msgid "* Pattern matching: destructuring enums, structs, and arrays."
|
|
msgstr "* Correspondência de padrões: desestruturando enums, structs e arrays."
|
|
|
|
#: src/welcome-day-2.md:9
|
|
msgid ""
|
|
"* Control flow constructs: `if`, `if let`, `while`, `while let`, `break`, and\n"
|
|
" `continue`."
|
|
msgstr ""
|
|
"* Construções de fluxo de controle: `if`, `if let`, `while`, `while let`, `break` e\n"
|
|
" `continue`."
|
|
|
|
#: src/welcome-day-2.md:12
|
|
msgid ""
|
|
"* The Standard Library: `String`, `Option` and `Result`, `Vec`, `HashMap`, `Rc`\n"
|
|
" and `Arc`."
|
|
msgstr ""
|
|
"* A Biblioteca Padrão: `String`, `Option` e `Result`, `Vec`, `HashMap`, `Rc`\n"
|
|
" e 'Arc'."
|
|
|
|
#: src/welcome-day-2.md:15
|
|
msgid "* Modules: visibility, paths, and filesystem hierarchy."
|
|
msgstr "* Módulos: visibilage, caminhos e hierarquia do sistema de arquivos."
|
|
|
|
#: src/structs.md:1
|
|
msgid "# Structs"
|
|
msgstr "# Structs"
|
|
|
|
#: src/structs.md:3
|
|
msgid "Like C and C++, Rust has support for custom structs:"
|
|
msgstr "Como C e C++, Rust tem suporte para structs personalizados:"
|
|
|
|
#: src/structs.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"struct Person {\n"
|
|
" name: String,\n"
|
|
" age: u8,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"struct Person {\n"
|
|
" name: String,\n"
|
|
" age: u8,\n"
|
|
"}"
|
|
|
|
#: src/structs.md:11
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut peter = Person {\n"
|
|
" name: String::from(\"Peter\"),\n"
|
|
" age: 27,\n"
|
|
" };\n"
|
|
" println!(\"{} is {} years old\", peter.name, peter.age);\n"
|
|
" \n"
|
|
" peter.age = 28;\n"
|
|
" println!(\"{} is {} years old\", peter.name, peter.age);\n"
|
|
" \n"
|
|
" let jackie = Person {\n"
|
|
" name: String::from(\"Jackie\"),\n"
|
|
" ..peter\n"
|
|
" };\n"
|
|
" println!(\"{} is {} years old\", jackie.name, jackie.age);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut pedro = Person {\n"
|
|
" name: String::from(\"Pedro\"),\n"
|
|
" age: 27,\n"
|
|
" };\n"
|
|
" println!(\"{} is {} years old\", pedro.name, pedro.age);\n"
|
|
" \n"
|
|
" pedro.age = 28;\n"
|
|
" println!(\"{} is {} years old\", pedro.name, pedro.age);\n"
|
|
" \n"
|
|
" let jackie = Person {\n"
|
|
" name: String::from(\"Jackie\"),\n"
|
|
" ..pedro\n"
|
|
" };\n"
|
|
" println!(\"{} is {} years old\", jackie.name, jackie.age);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/structs.md:29
|
|
msgid ""
|
|
"Key Points: "
|
|
msgstr ""
|
|
"Points chave:"
|
|
|
|
#: src/structs.md:32
|
|
msgid ""
|
|
"* Structs work like in C or C++.\n"
|
|
" * Like in C++, and unlike in C, no typedef is needed to define a type.\n"
|
|
" * Unlike in C++, there is no inheritance between structs.\n"
|
|
"* Methods are defined in an `impl` block, which we will see in following slides.\n"
|
|
"* This may be a good time to let people know there are different types of structs. \n"
|
|
" * Zero-sized structs `e.g., struct Foo;` might be used when implementing a trait on some type but don't have any data "
|
|
"that you want to store in the value itself. \n"
|
|
" * The next slide will introduce Tuple structs, used when the field names are not important.\n"
|
|
"* The syntax `..peter` allows us to copy the majority of the fields from the old struct without having to explicitly type "
|
|
"it all out. It must always be the last element."
|
|
msgstr ""
|
|
"* Structs funcionam como em C ou C++.\n"
|
|
" * Como em C++, e ao contrário de C, nenhum typedef é necessário para definir um tipo.\n"
|
|
" * Ao contrário do C++, não há herança entre structs.\n"
|
|
"* Os métodos são definidos em um bloco `impl`, que veremos nos próximos slides.\n"
|
|
"* Este pode ser um bom momento para que as Persons saibam que existem diferentes tipos de structs.\n"
|
|
" * Structs de tamanho zero `por exemplo, struct Foo;` podem ser usadas ao implementar uma característica em algum tipo, "
|
|
"mas não possuem nenhum dado que você deseja armazenar no próprio valor.\n"
|
|
" * O próximo slide apresentará as Structs Tuple."
|
|
|
|
#: src/structs/tuple-structs.md:1
|
|
msgid "# Tuple Structs"
|
|
msgstr "# Structs Tuplas"
|
|
|
|
#: src/structs/tuple-structs.md:3
|
|
msgid "If the field names are unimportant, you can use a tuple struct:"
|
|
msgstr "Se os names dos campos não forem importantes, você pode usar uma estrutura de tupla:"
|
|
|
|
#: src/structs/tuple-structs.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"struct Point(i32, i32);"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"struct Point(i32, i32);"
|
|
|
|
#: src/structs/tuple-structs.md:8
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p = Point(17, 23);\n"
|
|
" println!(\"({}, {})\", p.0, p.1);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p = Point(17, 23);\n"
|
|
" println!(\"({}, {})\", p.0, p.1);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/structs/tuple-structs.md:14
|
|
msgid "This is often used for single-field wrappers (called newtypes):"
|
|
msgstr "Isso geralmente é usado para wrappers de campo único (chamados newtypes):"
|
|
|
|
#: src/structs/tuple-structs.md:16
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"struct PoundOfForce(f64);\n"
|
|
"struct Newtons(f64);"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"struct PoundOfForce(f64);\n"
|
|
"struct Newtons(f64);"
|
|
|
|
#: src/structs/tuple-structs.md:20
|
|
msgid ""
|
|
"fn compute_thruster_force() -> PoundOfForce {\n"
|
|
" todo!(\"Ask a rocket scientist at NASA\")\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn compute_thruster_force() -> PoundOfForce {\n"
|
|
" todo!(\"Pergunte a um cientista de foguetes da NASA\")\n"
|
|
"}"
|
|
|
|
#: src/structs/tuple-structs.md:24
|
|
msgid ""
|
|
"fn set_thruster_force(force: Newtons) {\n"
|
|
" // ...\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn set_thruster_force(force: Newtons) {\n"
|
|
" // ...\n"
|
|
"}"
|
|
|
|
#: src/structs/tuple-structs.md:28
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let force = compute_thruster_force();\n"
|
|
" set_thruster_force(force);\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let force = compute_thruster_force();\n"
|
|
" ift_thruster_force(force);\n"
|
|
"}"
|
|
|
|
#: src/structs/tuple-structs.md:33 src/traits/default.md:36 src/generics/trait-objects.md:86
|
|
msgid "```"
|
|
msgstr "```"
|
|
|
|
#: src/structs/tuple-structs.md:37
|
|
msgid ""
|
|
"Newtypes are a great way to encode additional information about the value in a primitive type, for example:\n"
|
|
msgstr ""
|
|
"Newtypes são uma ótima maneira de codificar informações adicionais sobre o valor em um tipo primitivo, por exemplo:\n"
|
|
|
|
msgid ""
|
|
" * The number is measured in some units: `Newtons` in the example above.\n"
|
|
" * The value passed some validation when it was created, so you no longer have to validate it again at every use: "
|
|
"'PhoneNumber(String)` or `OddNumber(u32)`.\n"
|
|
msgstr ""
|
|
" * O número é medido em algumas unages: `Newtons` no exemplo acima.\n"
|
|
" * O valor passou por alguma validação quando foi criado, então você não precisa mais validá-lo novamente a cada uso: "
|
|
"'PhoneNumber(String)` ou `OddNumber(u32)`.\n"
|
|
|
|
#: src/structs/field-shorthand.md:1
|
|
msgid "# Field Shorthand Syntax"
|
|
msgstr "# Sintaxe abreviada de campo"
|
|
|
|
#: src/structs/field-shorthand.md:3
|
|
msgid ""
|
|
"If you already have variables with the right names, then you can create the\n"
|
|
"struct using a shorthand:"
|
|
msgstr ""
|
|
"Se você já tiver variáveis com os names corretos, poderá criar o\n"
|
|
"struct usando uma abreviação:"
|
|
|
|
#: src/structs/field-shorthand.md:6 src/methods.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Person {\n"
|
|
" name: String,\n"
|
|
" age: u8,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Person {\n"
|
|
" name: String,\n"
|
|
" age: u8,\n"
|
|
"}"
|
|
|
|
#: src/structs/field-shorthand.md:13
|
|
msgid ""
|
|
"impl Person {\n"
|
|
" fn new(name: String, age: u8) -> Person {\n"
|
|
" Person { name, age }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Person {\n"
|
|
" fn new(name: String, age: u8) -> Person {\n"
|
|
" Person { name, age }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/structs/field-shorthand.md:19
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let peter = Person::new(String::from(\"Peter\"), 27);\n"
|
|
" println!(\"{peter:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let peter = Person::new(String::from(\"Peter\"), 27);\n"
|
|
" println!(\"{peter:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/structs/field-shorthand.md:27
|
|
msgid "The `new` function could be written using `Self` as a type, as it is interchangeable with the struct type name"
|
|
msgstr "A função `new` pode ser escrita usando `Self` como um tipo, já que é intercambiável com o name do tipo struct"
|
|
|
|
#: src/structs/field-shorthand.md:29
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"impl Person {\n"
|
|
" fn new(name: String, age: u8) -> Self {\n"
|
|
" Self { name, age }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"impl Person {\n"
|
|
" fn new(name: String, age: u8) -> Self {\n"
|
|
" Self { name, age }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/enums.md:1
|
|
msgid "# Enums"
|
|
msgstr "# Enums"
|
|
|
|
#: src/enums.md:3
|
|
msgid ""
|
|
"The `enum` keyword allows the creation of a type which has a few\n"
|
|
"different variants:"
|
|
msgstr ""
|
|
"A palavra-chave `enum` permite a criação de um tipo que possui alguns\n"
|
|
"diferentes variantes:"
|
|
|
|
#: src/enums.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn generate_random_number() -> i32 {\n"
|
|
" 4 // Chosen by fair dice roll. Guaranteed to be random.\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn generate_random_number() -> i32 {\n"
|
|
" 4 // Escolhido por jogada de dados justa. Garantido para ser aleatório.\n"
|
|
"}"
|
|
|
|
#: src/enums.md:11
|
|
msgid ""
|
|
"#[derive(Debug)]\n"
|
|
"enum CoinFlip {\n"
|
|
" Heads,\n"
|
|
" Tails,\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[derive(Debug)]\n"
|
|
"enum CoinFlip {\n"
|
|
" Heads,\n"
|
|
" Tails,\n"
|
|
"}"
|
|
|
|
#: src/enums.md:17
|
|
msgid ""
|
|
"fn flip_coin() -> CoinFlip {\n"
|
|
" let random_number = generate_random_number();\n"
|
|
" if random_number % 2 == 0 {\n"
|
|
" return CoinFlip::Heads;\n"
|
|
" } else {\n"
|
|
" return CoinFlip::Tails;\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn flip_coin() -> CoinFlip {\n"
|
|
" let random_number = generate_random_number();\n"
|
|
" if random_number % 2 == 0 {\n"
|
|
" return CoinFlip::Heads;\n"
|
|
" } else {\n"
|
|
" return CoinFlip::Tails;\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/enums.md:26
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" println!(\"You got: {:?}\", flip_coin());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" println!(\"You got: {:?}\", flip_coin());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/enums.md:31
|
|
msgid ""
|
|
"Key Points:"
|
|
msgstr ""
|
|
"Points chave:"
|
|
|
|
#: src/enums.md:35
|
|
msgid ""
|
|
"* Enumerations allow you to collect a set of values under one type\n"
|
|
"* This page offers an enum type `CoinFlip` with two variants `Heads` and `Tail`. You might note the namespace when using "
|
|
"variants.\n"
|
|
"* This might be a good time to compare Structs and Enums:\n"
|
|
" * In both, you can have a simple version without fields (unit struct) or one with different types of fields (variant "
|
|
"payloads). \n"
|
|
" * In both, associated functions are defined within an `impl` block.\n"
|
|
" * You could even implement the different variants of an enum with separate structs but then they wouldn't be the same "
|
|
"type as they would if they were all defined in an enum. \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* As enumerações permitem que você colete um conjunto de valores em um tipo\n"
|
|
"* Esta página oferece um tipo de Enum `CoinFlip` com duas variantes `Heads` e `Tail`. Você pode observar o namespace ao "
|
|
"usar variantes.\n"
|
|
"* Este pode ser um bom momento para comparar Structs e Enums:\n"
|
|
" * Em ambos, você pode ter uma versão simples sem campos (unit struct) ou uma com diferentes tipos de campos (variant "
|
|
"payloads).\n"
|
|
" * Em ambos, as funções associadas são definidas dentro de um bloco `impl`.\n"
|
|
" * Você pode até mesmo implementar as diferentes variantes de uma Enum com Structs separadas, mas elas não seriam do mesmo "
|
|
"tipo que seriam se todas fossem definidas em uma Enum.\n"
|
|
"</details>"
|
|
|
|
#: src/enums/variant-payloads.md:1
|
|
msgid "# Variant Payloads"
|
|
msgstr "# cargos úteis variantes"
|
|
|
|
#: src/enums/variant-payloads.md:3
|
|
msgid ""
|
|
"You can define richer enums where the variants carry data. You can then use the\n"
|
|
"`match` statement to extract the data from each variant:"
|
|
msgstr ""
|
|
"Você pode definir enums mais ricos onde as variantes carregam dados. Você pode então usar o\n"
|
|
"instrução `match` para extrair os dados de cada variante:"
|
|
|
|
#: src/enums/variant-payloads.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"enum WebEvent {\n"
|
|
" PageLoad, // Variant without payload\n"
|
|
" KeyPress(char), // Tuple struct variant\n"
|
|
" Click { x: i64, y: i64 }, // Full struct variant\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"enum WebEvent {\n"
|
|
" PageLoad, // Variante sem payload\n"
|
|
" KeyPress(char), // Variante da estrutura da tupla\n"
|
|
" Click { x: i64, y: i64 }, // Variante de struct completa\n"
|
|
"}"
|
|
|
|
#: src/enums/variant-payloads.md:13
|
|
msgid ""
|
|
"#[rustfmt::skip]\n"
|
|
"fn inspect(event: WebEvent) {\n"
|
|
" match event {\n"
|
|
" WebEvent::PageLoad => println!(\"page loaded\"),\n"
|
|
" WebEvent::KeyPress(c) => println!(\"pressed '{c}'\"),\n"
|
|
" WebEvent::Click { x, y } => println!(\"clicked at x={x}, y={y}\"),\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[rustfmt::pular]\n"
|
|
"fn inspect(event: WebEvent) {\n"
|
|
" match event{\n"
|
|
" WebEvent::PageLoad => println!(\"página carregada\"),\n"
|
|
" WebEvent::KeyPress(c) => println!(\"pressionou '{c}'\"),\n"
|
|
" WebEvent::Click { x, y } => println!(\"clicou em x={x}, y={y}\"),\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/enums/variant-payloads.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let load = WebEvent::PageLoad;\n"
|
|
" let press = WebEvent::KeyPress('x');\n"
|
|
" let click = WebEvent::Click { x: 20, y: 80 };"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let load = WebEvent::PageLoad;\n"
|
|
" let press = WebEvent::KeyPress('x');\n"
|
|
" let click = WebEvent::Click { x: 20, y: 80 };"
|
|
|
|
#: src/enums/variant-payloads.md:27
|
|
msgid ""
|
|
" inspect(load);\n"
|
|
" inspect(press);\n"
|
|
" inspect(click);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" inspect(load);\n"
|
|
" inspect(press);\n"
|
|
" inspect(click);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/enums/variant-payloads.md:35
|
|
msgid ""
|
|
"* In the above example, accessing the `char` in `KeyPress`, or `x` and `y` in `Click` only works within a `match` or an `if "
|
|
"let` statement.\n"
|
|
"* `match` and `if let` inspect a hidden discriminant field in the `enum`.\n"
|
|
"* It is possible to retrieve the discriminant by calling `std::mem::discriminant()`\n"
|
|
" * This is useful, for example, if implementing `PartialEq` for structs where comparing field values doesn't affect "
|
|
"equality.\n"
|
|
"* `WebEvent::Click { ... }` is not exactly the same as `WebEvent::Click(Click)` with a top level `struct Click { ... }`. "
|
|
"The inlined version cannot implement traits, for example."
|
|
msgstr ""
|
|
"* No exemplo acima, acessar o `char` em `KeyPress`, ou `x` e `y` em `Click` só funciona dentro de uma instrução `match`.\n"
|
|
"* `match` inspeciona um campo discriminante oculto no `enum`.\n"
|
|
"* `WebEvent::Click { ... }` não é exatamente o mesmo que `WebEvent::Click(Click)` com um `struct Click { ... }` de nível "
|
|
"superior. A versão embutida não pode implementar traits, por exemplo."
|
|
|
|
#: src/enums/sizes.md:1
|
|
msgid "# Enum Sizes"
|
|
msgstr "# Tamanhos de Enum"
|
|
|
|
#: src/enums/sizes.md:3
|
|
msgid "Rust enums are packed tightly, taking constraints due to alignment into account:"
|
|
msgstr "Rust enums são empacotados firmemente, levando em consideração as restrições devido ao alinhamento:"
|
|
|
|
#: src/enums/sizes.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::mem::{align_of, size_of};"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:8
|
|
msgid ""
|
|
"macro_rules! dbg_size {\n"
|
|
" ($t:ty) => {\n"
|
|
" println!(\"{}: size {} bytes, align: {} bytes\",\n"
|
|
" stringify!($t), size_of::<$t>(), align_of::<$t>());\n"
|
|
" };\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:15
|
|
msgid ""
|
|
"enum Foo {\n"
|
|
" A,\n"
|
|
" B,\n"
|
|
"}"
|
|
msgstr ""
|
|
"enum Foo {\n"
|
|
" A,\n"
|
|
" B,\n"
|
|
"}"
|
|
|
|
#: src/enums/sizes.md:20
|
|
msgid ""
|
|
"#[repr(u32)]\n"
|
|
"enum Bar {\n"
|
|
" A, // 0\n"
|
|
" B = 10000,\n"
|
|
" C, // 10001\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:27
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" dbg_size!(Foo);\n"
|
|
" dbg_size!(Bar);\n"
|
|
" dbg_size!(bool);\n"
|
|
" dbg_size!(Option<bool>);\n"
|
|
" dbg_size!(&i32);\n"
|
|
" dbg_size!(Option<&i32>);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:37
|
|
msgid "* See the [Rust Reference](https://doc.rust-lang.org/reference/type-layout.html)."
|
|
msgstr "* Consulte a [Referência Rust](https://doc.rust-lang.org/reference/type-layout.html)."
|
|
|
|
#: src/enums/sizes.md:39
|
|
msgid ""
|
|
" * Internally Rust is using a field (discriminant) to keep track of the enum variant.\n"
|
|
" * `Bar` enum demonstrates that there is a way to control the discriminant value and type. If `repr` is removed, the "
|
|
"discriminant type takes 2 bytes, becuase 10001 fits 2 bytes.\n"
|
|
" * As a niche optimization an enum discriminant is merged with the pointer so that `Option<&Foo>` is the same size as "
|
|
"`&Foo`.\n"
|
|
" * `Option<bool>` is another example of tight packing.\n"
|
|
" * For [some types](https://doc.rust-lang.org/std/option/#representation), Rust guarantees that `size_of::<T>()` equals "
|
|
"`size_of::<Option<T>>()`.\n"
|
|
" * Zero-sized types allow for efficient implementation of `HashSet` using `HashMap` with `()` as the value."
|
|
msgstr ""
|
|
" * Internamente Rust está usando um campo (discriminante) para acompanhar a variante enum.\n"
|
|
" * A Enum `Bar` demonstra que existe uma maneira de controlar o valor e o tipo discriminante. Se `repr` for removido, o "
|
|
"tipo discriminante ocupa 2 bytes, porque 10001 cabe 2 bytes.\n"
|
|
" * Como uma otimização de nicho, um discriminante de Enum é mesclado com o ponteiro para que `Option<&Foo>` seja do mesmo "
|
|
"tamanho que `&Foo`.\n"
|
|
" * `Option<bool>` é outro exemplo de empacotamento compacto.\n"
|
|
" * Para [alguns tipos](https://doc.rust-lang.org/std/option/#representation), Rust garante que `size_of::<T>()` é igual a "
|
|
"`size_of::<Option<T> >()`.\n"
|
|
" * Tipos de tamanho zero permitem a implementação eficiente de `HashSet` usando `HashMap` com `()` como valor."
|
|
|
|
#: src/enums/sizes.md:49
|
|
msgid ""
|
|
"Example code if you want to show how the bitwise representation *may* look like in practice.\n"
|
|
"It's important to note that the compiler provides no guarantees regarding this representation, therefore this is totally "
|
|
"unsafe."
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:52
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::mem::transmute;"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:55 src/enums/sizes.md:94
|
|
msgid ""
|
|
"macro_rules! dbg_bits {\n"
|
|
" ($e:expr, $bit_type:ty) => {\n"
|
|
" println!(\"- {}: {:#x}\", stringify!($e), transmute::<_, $bit_type>($e));\n"
|
|
" };\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:61
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" // TOTALLY UNSAFE. Rust provides no guarantees about the bitwise\n"
|
|
" // representation of types.\n"
|
|
" unsafe {\n"
|
|
" println!(\"Bitwise representation of bool\");\n"
|
|
" dbg_bits!(false, u8);\n"
|
|
" dbg_bits!(true, u8);"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:69
|
|
msgid ""
|
|
" println!(\"Bitwise representation of Option<bool>\");\n"
|
|
" dbg_bits!(None::<bool>, u8);\n"
|
|
" dbg_bits!(Some(false), u8);\n"
|
|
" dbg_bits!(Some(true), u8);"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:74
|
|
msgid ""
|
|
" println!(\"Bitwise representation of Option<Option<bool>>\");\n"
|
|
" dbg_bits!(Some(Some(false)), u8);\n"
|
|
" dbg_bits!(Some(Some(true)), u8);\n"
|
|
" dbg_bits!(Some(None::<bool>), u8);\n"
|
|
" dbg_bits!(None::<Option<bool>>, u8);"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:80
|
|
msgid ""
|
|
" println!(\"Bitwise representation of Option<&i32>\");\n"
|
|
" dbg_bits!(None::<&i32>, usize);\n"
|
|
" dbg_bits!(Some(&0i32), usize);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:87
|
|
msgid "More complex example if you want to discuss what happens when we chain more than 256 `Option`s together."
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:89
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#![recursion_limit = \"1000\"]"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"#![recursion_limit = \"1000\"]"
|
|
|
|
#: src/enums/sizes.md:92
|
|
msgid "use std::mem::transmute;"
|
|
msgstr "use std::mem::transmute;"
|
|
|
|
#: src/enums/sizes.md:100
|
|
msgid ""
|
|
"// Macro to wrap a value in 2^n Some() where n is the number of \"@\" signs.\n"
|
|
"// Increasing the recursion limit is required to evaluate this macro.\n"
|
|
"macro_rules! many_options {\n"
|
|
" ($value:expr) => { Some($value) };\n"
|
|
" ($value:expr, @) => {\n"
|
|
" Some(Some($value))\n"
|
|
" };\n"
|
|
" ($value:expr, @ $($more:tt)+) => {\n"
|
|
" many_options!(many_options!($value, $($more)+), $($more)+)\n"
|
|
" };\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:112
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" // TOTALLY UNSAFE. Rust provides no guarantees about the bitwise\n"
|
|
" // representation of types.\n"
|
|
" unsafe {\n"
|
|
" assert_eq!(many_options!(false), Some(false));\n"
|
|
" assert_eq!(many_options!(false, @), Some(Some(false)));\n"
|
|
" assert_eq!(many_options!(false, @@), Some(Some(Some(Some(false)))));"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:120
|
|
msgid ""
|
|
" println!(\"Bitwise representation of a chain of 128 Option's.\");\n"
|
|
" dbg_bits!(many_options!(false, @@@@@@@), u8);\n"
|
|
" dbg_bits!(many_options!(true, @@@@@@@), u8);"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:124
|
|
msgid ""
|
|
" println!(\"Bitwise representation of a chain of 256 Option's.\");\n"
|
|
" dbg_bits!(many_options!(false, @@@@@@@@), u16);\n"
|
|
" dbg_bits!(many_options!(true, @@@@@@@@), u16);"
|
|
msgstr ""
|
|
|
|
#: src/enums/sizes.md:128
|
|
msgid ""
|
|
" println!(\"Bitwise representation of a chain of 257 Option's.\");\n"
|
|
" dbg_bits!(many_options!(Some(false), @@@@@@@@), u16);\n"
|
|
" dbg_bits!(many_options!(Some(true), @@@@@@@@), u16);\n"
|
|
" dbg_bits!(many_options!(None::<bool>, @@@@@@@@), u16);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/methods.md:3
|
|
msgid ""
|
|
"Rust allows you to associate functions with your new types. You do this with an\n"
|
|
"`impl` block:"
|
|
msgstr ""
|
|
"Rust permite que você associe funções aos seus novos tipos. Você faz isso com um\n"
|
|
"bloco `impl`:"
|
|
|
|
#: src/methods.md:13
|
|
msgid ""
|
|
"impl Person {\n"
|
|
" fn say_hello(&self) {\n"
|
|
" println!(\"Hello, my name is {}\", self.name);\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Person {\n"
|
|
" fn say_hello(&self) {\n"
|
|
" println!(\"Olá, meu name é {}\", self.name);\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/methods.md:19
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let peter = Person {\n"
|
|
" name: String::from(\"Peter\"),\n"
|
|
" age: 27,\n"
|
|
" };\n"
|
|
" peter.say_hello();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let peter = Person {\n"
|
|
" name: String::from(\"Peter\"),\n"
|
|
" age: 27,\n"
|
|
" };\n"
|
|
" peter.say_hello();\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/methods.md:30
|
|
msgid ""
|
|
"* It can be helpful to introduce methods by comparing them to functions.\n"
|
|
" * Methods are called on an instance of a type (such as a struct or enum), the first parameter represents the instance as "
|
|
"`self`.\n"
|
|
" * Developers may choose to use methods to take advantage of method receiver syntax and to help keep them more organized. "
|
|
"By using methods we can keep all the implementation code in one predictable place.\n"
|
|
"* Point out the use of the keyword `self`, a method receiver. \n"
|
|
" * Show that it is an abbreviated term for `self:&Self` and perhaps show how the struct name could also be used. \n"
|
|
" * Explain that `Self` is a type alias for the type the `impl` block is in and can be used elsewhere in the block.\n"
|
|
" * Note how `self` is used like other structs and dot notation can be used to refer to individual fields.\n"
|
|
" * This might be a good time to demonstrate how the `&self` differs from `self` by modifying the code and trying to run "
|
|
"say_hello twice. \n"
|
|
"* We describe the distinction between method receivers next.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* Pode ser útil introduzir métodos comparando-os com funções.\n"
|
|
" * Métodos são chamados em uma instância de um tipo (como struct ou enum), o primeiro parâmetro representa a instância "
|
|
"como `self`.\n"
|
|
" * Os desenvolvedores podem optar por usar métodos para aproveitar a sintaxe do receptor do método e ajudar a mantê-los "
|
|
"mais organizados. Usando métodos, podemos manter todo o código de implementação em um local previsível.\n"
|
|
"* Highlight o uso da palavra-chave `self`, um receptor de método.\n"
|
|
" * Mostre que é um termo abreviado para `self:&Self` e talvez mostre como o name struct também poderia ser usado.\n"
|
|
" * Explique que Self é um alias de tipo para o tipo em que o bloco `impl` está e pode ser usado em qualquer outro lugar no "
|
|
"bloco.\n"
|
|
" * Observe como self é usado como outras Structs e a notação de Point pode ser usada para se referir a campos "
|
|
"individuais.\n"
|
|
" * Este pode ser um bom momento para demonstrar como `&self` difere de `self` modificando o código e tentando executar "
|
|
"say_hello duas vezes.\n"
|
|
"* Descrevemos a distinção entre os receptores de método a seguir.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/methods/receiver.md:1
|
|
msgid "# Method Receiver"
|
|
msgstr "# Método Receptor"
|
|
|
|
#: src/methods/receiver.md:3
|
|
msgid ""
|
|
"The `&self` above indicates that the method borrows the object immutably. There\n"
|
|
"are other possible receivers for a method:"
|
|
msgstr ""
|
|
"O `&self` acima indica que o método toma emprestado o objeto imutavelmente. Lá\n"
|
|
"são outros receptores possíveis para um método:"
|
|
|
|
#: src/methods/receiver.md:6
|
|
msgid ""
|
|
"* `&self`: borrows the object from the caller using a shared and immutable\n"
|
|
" reference. The object can be used again afterwards.\n"
|
|
"* `&mut self`: borrows the object from the caller using a unique and mutable\n"
|
|
" reference. The object can be used again afterwards.\n"
|
|
"* `self`: takes ownership of the object and moves it away from the caller. The\n"
|
|
" method becomes the owner of the object. The object will be dropped (deallocated)\n"
|
|
" when the method returns, unless its ownership is explicitly\n"
|
|
" transmitted.\n"
|
|
"* `mut self`: same as above, but while the method owns the object, it can\n"
|
|
" mutate it too. Complete ownership does not automatically mean mutability.\n"
|
|
"* No receiver: this becomes a static method on the struct. Typically used to\n"
|
|
" create constructors which are called `new` by convention."
|
|
msgstr ""
|
|
"* `&self`: pega emprestado o objeto do chamador usando um compartilhado e imutável\n"
|
|
" referência. O objeto pode ser usado novamente depois.\n"
|
|
"* `&mut self`: pega emprestado o objeto do chamador usando um único e mutável\n"
|
|
" referência. O objeto pode ser usado novamente depois.\n"
|
|
"* `self`: toma posse do objeto e o afasta do chamador. o\n"
|
|
" O método se torna o proprietário do objeto. O objeto será descartado (desalocado)\n"
|
|
" quando o método retorna, a menos que sua ownership seja explicitamente\n"
|
|
" transmitido.\n"
|
|
"* `mut self`: o mesmo que acima, mas enquanto o método possui o objeto, ele pode\n"
|
|
" transformá-lo também. A ownership completa não significa automaticamente mutabilage.\n"
|
|
"* Sem receptor: isso se torna um método static na estrutura. Normalmente usado para\n"
|
|
" crie construtores que são chamados `new` por convenção."
|
|
|
|
#: src/methods/receiver.md:19
|
|
msgid ""
|
|
"Beyond variants on `self`, there are also\n"
|
|
"[special wrapper types](https://doc.rust-lang.org/reference/special-types-and-traits.html)\n"
|
|
"allowed to be receiver types, such as `Box<Self>`."
|
|
msgstr ""
|
|
"Além das variantes de `self`, também existem\n"
|
|
"[tipos especiais de wrapper](https://doc.rust-lang.org/reference/special-types-and-traits.html)\n"
|
|
"podem ser tipos de receptores, como `Box<Self>`."
|
|
|
|
#: src/methods/receiver.md:23
|
|
msgid ""
|
|
"Consider emphasizing on \"shared and immutable\" and \"unique and mutable\". These constraints always come\n"
|
|
"together in Rust due to borrow checker rules, and `self` is no exception. It won't be possible to\n"
|
|
"reference a struct from multiple locations and call a mutating (`&mut self`) method on it.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"Considere enfatizar \"compartilhado e imutável\" e \"único e mutável\". Essas restrições sempre vêm\n"
|
|
"juntos no Rust devido às regras do verificador emprestado, e `self` não é exceção. Não será possível\n"
|
|
"referenciar um struct de vários locais e chamar um método mutante (`&mut self`) nele.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/methods/example.md:1 src/concurrency/shared_state/example.md:1
|
|
msgid "# Example"
|
|
msgstr "# Exemplo"
|
|
|
|
#: src/methods/example.md:3
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Race {\n"
|
|
" name: String,\n"
|
|
" laps: Vec<i32>,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Raça {\n"
|
|
" name: String,\n"
|
|
" voltas: Vec<i32>,\n"
|
|
"}"
|
|
|
|
#: src/methods/example.md:10
|
|
msgid ""
|
|
"impl Race {\n"
|
|
" fn new(name: &str) -> Race { // No receiver, a static method\n"
|
|
" Race { name: String::from(name), laps: Vec::new() }\n"
|
|
" }"
|
|
msgstr ""
|
|
|
|
#: src/methods/example.md:15
|
|
#, fuzzy
|
|
msgid ""
|
|
" fn add_lap(&mut self, lap: i32) { // Exclusive borrowed read-write access to self\n"
|
|
" self.laps.push(lap);\n"
|
|
" }"
|
|
msgstr ""
|
|
" fn add_lap(&mut self, lap: i32) { // Acesso de leitura e gravação emprestado exclusivo para self\n"
|
|
" self.laps.push(volta);\n"
|
|
" }"
|
|
|
|
#: src/methods/example.md:19
|
|
#, fuzzy
|
|
msgid ""
|
|
" fn print_laps(&self) { // Shared and read-only borrowed access to self\n"
|
|
" println!(\"Recorded {} laps for {}:\", self.laps.len(), self.name);\n"
|
|
" for (idx, lap) in self.laps.iter().enumerate() {\n"
|
|
" println!(\"Lap {idx}: {lap} sec\");\n"
|
|
" }\n"
|
|
" }"
|
|
msgstr ""
|
|
" fn print_laps(&self) { // Acesso emprestado compartilhado e somente leitura a si mesmo\n"
|
|
" println!(\"Gravadas {} voltas para {}:\", self.laps.len(), self.name);\n"
|
|
" for (idx, lap) in self.laps.iter().enumerate() {\n"
|
|
" println!(\"Volta {idx}: {volta} seg\");\n"
|
|
" }\n"
|
|
" }"
|
|
|
|
#: src/methods/example.md:26
|
|
msgid ""
|
|
" fn finish(self) { // Exclusive ownership of self\n"
|
|
" let total = self.laps.iter().sum::<i32>();\n"
|
|
" println!(\"Race {} is finished, total lap time: {}\", self.name, total);\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" fn finish(self) { // ownership exclusiva de self\n"
|
|
" let total = self.laps.iter().sum::<i32>();\n"
|
|
" println!(\"A corrida {} terminou, tempo total da volta: {}\", self.name, total);\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/methods/example.md:32
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut race = Race::new(\"Monaco Grand Prix\");\n"
|
|
" race.add_lap(70);\n"
|
|
" race.add_lap(68);\n"
|
|
" race.print_laps();\n"
|
|
" race.add_lap(71);\n"
|
|
" race.print_laps();\n"
|
|
" race.finish();\n"
|
|
" // race.add_lap(42);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut race = Race::new(\"Grande Prêmio de Mônaco\");\n"
|
|
" corrida.add_lap(70);\n"
|
|
" corrida.add_lap(68);\n"
|
|
" corrida.print_laps();\n"
|
|
" corrida.add_lap(71);\n"
|
|
" corrida.print_laps();\n"
|
|
" race.finish();\n"
|
|
" // corrida.add_lap(42);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/methods/example.md:44
|
|
msgid ""
|
|
"* All four methods here use a different method receiver.\n"
|
|
" * You can point out how that changes what the function can do with the variable values and if/how it can be used again in "
|
|
"`main`.\n"
|
|
" * You can showcase the error that appears when trying to call `finish` twice.\n"
|
|
"* Note, that although the method receivers are different, the non-static functions are called the same way in the main "
|
|
"body. Rust enables automatic referencing and dereferencing when calling methods. Rust automatically adds in the `&`, `*`, "
|
|
"`muts` so that that object matches the method signature.\n"
|
|
"* You might point out that `print_laps` is using a vector that is iterated over. We describe vectors in more detail in the "
|
|
"afternoon. "
|
|
msgstr ""
|
|
"* Todos os quatro métodos aqui usam um receptor de método diferente.\n"
|
|
" * Você pode apontar como isso muda o que a função pode fazer com os valores das variáveis e se/como ela pode ser usada "
|
|
"novamente em `main`.\n"
|
|
" * Você pode mostrar o erro que aparece ao tentar chamar `finish` duas vezes.\n"
|
|
"* Observe que, embora os receptores do método sejam diferentes, as funções não estáticas são chamadas da mesma maneira no "
|
|
"corpo principal. Rust permite referenciar e desreferenciar automaticamente ao chamar métodos. Rust adiciona automaticamente "
|
|
"`&`, `*`, `muts` para que esse objeto corresponda à assinatura do método.\n"
|
|
"* Você pode apontar que `print_laps` está usando um vetor iterado. Descrevemos os vetores com mais detalhes à tarde."
|
|
|
|
#: src/pattern-matching.md:1
|
|
msgid "# Pattern Matching"
|
|
msgstr "# Correspondência de padrões"
|
|
|
|
#: src/pattern-matching.md:3
|
|
msgid ""
|
|
"The `match` keyword let you match a value against one or more _patterns_. The\n"
|
|
"comparisons are done from top to bottom and the first match wins."
|
|
msgstr ""
|
|
"A palavra-chave `match` permite que você corresponda um valor a um ou mais _patterns_. o\n"
|
|
"as comparações são feitas de cima para baixo e a primeira partida vence."
|
|
|
|
#: src/pattern-matching.md:6
|
|
msgid "The patterns can be simple values, similarly to `switch` in C and C++:"
|
|
msgstr "Os padrões podem ser valores simples, similarmente a `switch` em C e C++:"
|
|
|
|
#: src/pattern-matching.md:8
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let input = 'x';"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let input = 'x';"
|
|
|
|
#: src/pattern-matching.md:12
|
|
msgid ""
|
|
" match input {\n"
|
|
" 'q' => println!(\"Quitting\"),\n"
|
|
" 'a' | 's' | 'w' | 'd' => println!(\"Moving around\"),\n"
|
|
" '0'..='9' => println!(\"Number input\"),\n"
|
|
" _ => println!(\"Something else\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" match input {\n"
|
|
" 'q' => println!(\"Sair\"),\n"
|
|
" 'a' | 's' | 'w' | 'd' => println!(\"Movendo-se\"),\n"
|
|
" '0'..='9' => println!(\"Number input\"),\n"
|
|
" _ => println!(\"Algo mais\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/pattern-matching.md:21
|
|
msgid "The `_` pattern is a wildcard pattern which matches any value."
|
|
msgstr "O padrão `_` é um padrão curinga que corresponde a qualquer valor."
|
|
|
|
#: src/pattern-matching.md:23
|
|
msgid ""
|
|
"* You might point out how some specific characters are being used when in a pattern\n"
|
|
" * `|` as an `or`\n"
|
|
" * `..` can expand as much as it needs to be\n"
|
|
" * `1..=5` represents an inclusive range\n"
|
|
" * `_` is a wild card\n"
|
|
"* It can be useful to show how binding works, by for instance replacing a wildcard character with a variable, or removing "
|
|
"the quotes around `q`.\n"
|
|
"* You can demonstrate matching on a reference.\n"
|
|
"* This might be a good time to bring up the concept of irrefutable patterns, as the term can show up in error messages.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* Você pode apontar como alguns caracteres específicos estão sendo usados quando em um padrão\n"
|
|
" * `|` como um `ou`\n"
|
|
" * `..` pode expandir o quanto for necessário\n"
|
|
" * `1..=5` representa um intervalo inclusivo\n"
|
|
" * `_` é um curinga\n"
|
|
"* Pode ser útil mostrar como funciona a vinculação, por exemplo, substituindo um caractere curinga por uma variável ou "
|
|
"removendo as aspas ao redor de `q`.\n"
|
|
"* Você pode demonstrar correspondência em uma referência.\n"
|
|
"* Este pode ser um bom momento para trazer à tona o conceito de padrões irrefutáveis, já que o termo pode aparecer em "
|
|
"mensagens de erro.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:1
|
|
msgid "# Destructuring Enums"
|
|
msgstr "# Desestruturando Enums"
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:3
|
|
msgid ""
|
|
"Patterns can also be used to bind variables to parts of your values. This is how\n"
|
|
"you inspect the structure of your types. Let us start with a simple `enum` type:"
|
|
msgstr ""
|
|
"Os padrões também podem ser usados para vincular variáveis a partes de seus valores. É assim\n"
|
|
"você inspeciona a estrutura de seus tipos. Vamos começar com um tipo `enum` simples:"
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"enum Result {\n"
|
|
" Ok(i32),\n"
|
|
" Err(String),\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:12
|
|
msgid ""
|
|
"fn divide_in_two(n: i32) -> Result {\n"
|
|
" if n % 2 == 0 {\n"
|
|
" Result::Ok(n / 2)\n"
|
|
" } else {\n"
|
|
" Result::Err(format!(\"cannot divide {n} into two equal parts\"))\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn divide_in_two(n: i32) -> Result {\n"
|
|
" if n % 2 == 0 {\n"
|
|
" Result::Ok(n/2)\n"
|
|
" } else {\n"
|
|
" Result::Err(format!(\"não é possível dividir {} em duas partes iguais\", n))\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:20
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let n = 100;\n"
|
|
" match divide_in_two(n) {\n"
|
|
" Result::Ok(half) => println!(\"{n} divided in two is {half}\"),\n"
|
|
" Result::Err(msg) => println!(\"sorry, an error happened: {msg}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let n = 100;\n"
|
|
" match divide_in_two(n) {\n"
|
|
" Result::Ok(metade) => println!(\"{n} dividido em dois é {metade}\"),\n"
|
|
" Result::Err(msg) => println!(\"desculpe, ocorreu um erro: {msg}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:29
|
|
msgid ""
|
|
"Here we have used the arms to _destructure_ the `Result` value. In the first\n"
|
|
"arm, `half` is bound to the value inside the `Ok` variant. In the second arm,\n"
|
|
"`msg` is bound to the error message."
|
|
msgstr ""
|
|
"Aqui usamos os braços para _desestruturar_ o valor `Resultado`. Em primeiro\n"
|
|
"arm, `half` está vinculado ao valor dentro da variante `Ok`. No segundo braço,\n"
|
|
"`msg` está vinculado à mensagem de erro."
|
|
|
|
#: src/pattern-matching/destructuring-enums.md:35
|
|
msgid ""
|
|
"* The `if`/`else` expression is returning an enum that is later unpacked with a `match`.\n"
|
|
"* You can try adding a third variant to the enum definition and displaying the errors when running the code. Point out the "
|
|
"places where your code is now inexhaustive and how the compiler tries to give you hints."
|
|
msgstr ""
|
|
"* A expressão `if`/`else` está retornando um enum que é posteriormente descompactado com um `match`.\n"
|
|
"* Você pode tentar adicionar uma terceira variante à definição de Enum e exibir os erros ao executar o código. Aponte os "
|
|
"lugares onde seu código agora é inexaustivo e como o compilador tenta lhe dar dicas."
|
|
|
|
#: src/pattern-matching/destructuring-structs.md:1
|
|
msgid "# Destructuring Structs"
|
|
msgstr "# Desestruturando Structs"
|
|
|
|
#: src/pattern-matching/destructuring-structs.md:3
|
|
msgid "You can also destructure `structs`:"
|
|
msgstr "Você também pode desestruturar `structs`:"
|
|
|
|
#: src/pattern-matching/destructuring-structs.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"struct Foo {\n"
|
|
" x: (u32, u32),\n"
|
|
" y: u32,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"struct Foo {\n"
|
|
" x: (u32, u32),\n"
|
|
" y: u32,\n"
|
|
"}"
|
|
|
|
#: src/pattern-matching/destructuring-structs.md:11
|
|
msgid ""
|
|
"#[rustfmt::skip]\n"
|
|
"fn main() {\n"
|
|
" let foo = Foo { x: (1, 2), y: 3 };\n"
|
|
" match foo {\n"
|
|
" Foo { x: (1, b), y } => println!(\"x.0 = 1, b = {b}, y = {y}\"),\n"
|
|
" Foo { y: 2, x: i } => println!(\"y = 2, x = {i:?}\"),\n"
|
|
" Foo { y, .. } => println!(\"y = {y}, other fields were ignored\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```\n"
|
|
msgstr ""
|
|
"#[rustfmt::pular]\n"
|
|
"fn main() {\n"
|
|
" let foo = Foo { x: (1, 2), y: 3 };\n"
|
|
" match foo {\n"
|
|
" Foo { x: (1, b), y } => println!(\"x.0 = 1, b = {b}, y = {y}\"),\n"
|
|
" Foo { y: 2, x: i } => println!(\"y = 2, i = {i:?}\"),\n"
|
|
" Foo { y, .. } => println!(\"y = {y}, outros campos foram ignorados\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```\n"
|
|
|
|
#: src/pattern-matching/destructuring-structs.md:23
|
|
msgid ""
|
|
"* Change the literal values in `foo` to match with the other patterns.\n"
|
|
"* Add a new field to `Foo` and make changes to the pattern as needed.\n"
|
|
"</details>"
|
|
msgstr ""
|
|
|
|
#: src/pattern-matching/destructuring-arrays.md:1
|
|
msgid "# Destructuring Arrays"
|
|
msgstr "# Desestruturando Arrays"
|
|
|
|
#: src/pattern-matching/destructuring-arrays.md:3
|
|
msgid "You can destructure arrays, tuples, and slices by matching on their elements:"
|
|
msgstr "Você pode desestruturar arrays, tuplas e slices combinando seus elementos:"
|
|
|
|
#: src/pattern-matching/destructuring-arrays.md:5
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[rustfmt::skip]\n"
|
|
"fn main() {\n"
|
|
" let triple = [0, -2, 3];\n"
|
|
" println!(\"Tell me about {triple:?}\");\n"
|
|
" match triple {\n"
|
|
" [0, y, z] => println!(\"First is 0, y = {y}, and z = {z}\"),\n"
|
|
" [1, ..] => println!(\"First is 1 and the rest were ignored\"),\n"
|
|
" _ => println!(\"All elements were ignored\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[rustfmt::pular]\n"
|
|
"fn main() {\n"
|
|
" let triplo = [0, -2, 3];\n"
|
|
" println!(\"Fale-me sobre {triplo:?}\");\n"
|
|
" match triplo {\n"
|
|
" [0, y, z] => println!(\"Primeiro é 0, y = {y} e z = {z}\"),\n"
|
|
" [1, ..] => println!(\"Primeiro é 1 e o resto foi ignorado\"),\n"
|
|
" _ => println!(\"Todos os elementos foram ignorados\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/pattern-matching/destructuring-arrays.md:20
|
|
msgid "* Destructuring of slices of unknown length also works with patterns of fixed length."
|
|
msgstr ""
|
|
|
|
#: src/pattern-matching/destructuring-arrays.md:22
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" inspect(&[0, -2, 3]);\n"
|
|
" inspect(&[0, -2, 3, 4]);\n"
|
|
"}"
|
|
"#[rustfmt::skip]\n"
|
|
"fn inspect(slice: &[i32]) {\n"
|
|
" println!(\"Tell me about {slice:?}\");\n"
|
|
" match slice {\n"
|
|
" &[0, y, z] => println!(\"First is 0, y = {y}, and z = {z}\"),\n"
|
|
" &[1, ..] => println!(\"First is 1 and the rest were ignored\"),\n"
|
|
" _ => println!(\"All elements were ignored\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```\n"
|
|
msgstr ""
|
|
|
|
#: src/pattern-matching/destructuring-arrays.md:28
|
|
msgid ""
|
|
"* Show matching against the tail with patterns `[.., b]` and `[a@..,b]`\n"
|
|
msgstr ""
|
|
|
|
#: src/pattern-matching/match-guards.md:1
|
|
msgid "# Match Guards"
|
|
msgstr "# Guardas de jogo"
|
|
|
|
#: src/pattern-matching/match-guards.md:3
|
|
msgid ""
|
|
"When matching, you can add a _guard_ to a pattern. This is an arbitrary Boolean\n"
|
|
"expression which will be executed if the pattern matches:"
|
|
msgstr ""
|
|
"Ao match, você pode adicionar um _guard_ a um padrão. Este é um booleano arbitrário\n"
|
|
"expressão que será executada se o padrão corresponder:"
|
|
|
|
#: src/pattern-matching/match-guards.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[rustfmt::skip]\n"
|
|
"fn main() {\n"
|
|
" let pair = (2, -2);\n"
|
|
" println!(\"Tell me about {pair:?}\");\n"
|
|
" match pair {\n"
|
|
" (x, y) if x == y => println!(\"These are twins\"),\n"
|
|
" (x, y) if x + y == 0 => println!(\"Antimatter, kaboom!\"),\n"
|
|
" (x, _) if x % 2 == 1 => println!(\"The first one is odd\"),\n"
|
|
" _ => println!(\"No correlation...\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[rustfmt::pular]\n"
|
|
"fn main() {\n"
|
|
" let pair = (2, -2);\n"
|
|
" println!(\"Fale-me sobre {pair:?}\");\n"
|
|
" match pair {\n"
|
|
" (x, y) if x == y => println!(\"Estes são gêmeos\"),\n"
|
|
" (x, y) if x + y == 0 => println!(\"Antimatter, kaboom!\"),\n"
|
|
" (x, _) if x % 2 == 1 => println!(\"O primeiro é ímpar\"),\n"
|
|
" _ => println!(\"Sem correlação...\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/pattern-matching/match-guards.md:22
|
|
msgid ""
|
|
"* Match guards as a separate syntax feature are important and necessary when we wish to concisely express more complex "
|
|
"ideas than patterns alone would allow.\n"
|
|
"* They are not the same as separate `if` expression inside of the match arm. An `if` expression inside of the branch block "
|
|
"(after `=>`) happens after the match arm is selected. Failing the `if` condition inside of that block won't result in other "
|
|
"arms\n"
|
|
"of the original `match` expression being considered. \n"
|
|
"* You can use the variables defined in the pattern in your if expression.\n"
|
|
"* The condition defined in the guard applies to every expression in a pattern with an `|`.\n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* Match guards como um recurso de sintaxe separado são importantes e necessários.\n"
|
|
"* Eles não são iguais à expressão 'if' separada dentro do braço de correspondência. Uma expressão `if` dentro do bloco de "
|
|
"ramificação (depois de `=>`) acontece depois que o braço de correspondência é selecionado. A falha na condição `if` dentro "
|
|
"desse bloco não resultará em outros braços\n"
|
|
"da expressão `match` original sendo considerada.\n"
|
|
"* Você pode usar as variáveis definidas no padrão em sua expressão if.\n"
|
|
"* A condição definida na guarda se aplica a todas as expressões em um padrão com um `|`.\n"
|
|
"</details>"
|
|
|
|
#: src/exercises/day-2/morning.md:1
|
|
msgid "# Day 2: Morning Exercises"
|
|
msgstr "# Dia 2: Exercícios matinais"
|
|
|
|
#: src/exercises/day-2/morning.md:3
|
|
msgid "We will look at implementing methods in two contexts:"
|
|
msgstr "Veremos a implementação de métodos em dois contextos:"
|
|
|
|
#: src/exercises/day-2/morning.md:5
|
|
msgid "* Simple struct which tracks health statistics."
|
|
msgstr "* Estrutura simples que rastreia as estatísticas de saúde."
|
|
|
|
#: src/exercises/day-2/morning.md:7
|
|
msgid "* Multiple structs and enums for a drawing library."
|
|
msgstr "* Várias Structs e enumerações para uma biblioteca de desenho."
|
|
|
|
#: src/exercises/day-2/health-statistics.md:1
|
|
msgid "# Health Statistics"
|
|
msgstr "# Estatísticas de saúde"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:3
|
|
msgid ""
|
|
"You're working on implementing a health-monitoring system. As part of that, you\n"
|
|
"need to keep track of users' health statistics."
|
|
msgstr ""
|
|
"Você está trabalhando na implementação de um sistema de monitoramento de saúde. Como parte disso, você\n"
|
|
"precisam acompanhar as estatísticas de saúde dos usuários."
|
|
|
|
#: src/exercises/day-2/health-statistics.md:6
|
|
msgid ""
|
|
"You'll start with some stubbed functions in an `impl` block as well as a `User`\n"
|
|
"struct definition. Your goal is to implement the stubbed out methods on the\n"
|
|
"`User` `struct` defined in the `impl` block."
|
|
msgstr ""
|
|
"Você começará com algumas funções fragmentadas em um bloco `impl`, bem como em um bloco `User`\n"
|
|
"definição de struct. Seu objetivo é implementar os métodos stubbed out no\n"
|
|
"`User` `struct` definido no bloco `impl`."
|
|
|
|
#: src/exercises/day-2/health-statistics.md:10
|
|
msgid ""
|
|
"Copy the code below to <https://play.rust-lang.org/> and fill in the missing\n"
|
|
"methods:"
|
|
msgstr ""
|
|
"Copie o código abaixo para <https://play.rust-lang.org/> e preencha os campos que faltam\n"
|
|
"métodos:"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:17
|
|
msgid ""
|
|
"struct User {\n"
|
|
" name: String,\n"
|
|
" age: u32,\n"
|
|
" weight: f32,\n"
|
|
"}"
|
|
msgstr ""
|
|
"struct User {\n"
|
|
" name: String,\n"
|
|
" age: u32,\n"
|
|
" weight: f32,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:23
|
|
msgid ""
|
|
"impl User {\n"
|
|
" pub fn new(name: String, age: u32, weight: f32) -> Self {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl User {\n"
|
|
" pub fn new(name: String, age: u32, weight: f32) -> Self {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:28
|
|
msgid ""
|
|
" pub fn name(&self) -> &str {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn name(&self) -> &str {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:32
|
|
msgid ""
|
|
" pub fn age(&self) -> u32 {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn age(&self) -> u32 {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:36
|
|
msgid ""
|
|
" pub fn weight(&self) -> f32 {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn weight(&self) -> f32 {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:40
|
|
msgid ""
|
|
" pub fn set_age(&mut self, new_age: u32) {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn set_age(&mut self, new_age: u32) {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:44
|
|
msgid ""
|
|
" pub fn set_weight(&mut self, new_weight: f32) {\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" pub fn set_weight(&mut self, new_weight: f32) {\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:49
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let bob = User::new(String::from(\"Bob\"), 32, 155.2);\n"
|
|
" println!(\"I'm {} and my age is {}\", bob.name(), bob.age());\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let bob = User::new(String::from(\"Bob\"), 32, 155.2);\n"
|
|
" println!(\"Tenho {} e minha age é {}\", bob.name(), bob.age());\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:54
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_weight() {\n"
|
|
" let bob = User::new(String::from(\"Bob\"), 32, 155.2);\n"
|
|
" assert_eq!(bob.weight(), 155.2);\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_weight() {\n"
|
|
" let bob = User::new(String::from(\"Bob\"), 32, 155.2);\n"
|
|
" assert_eq!(bob.weight(), 155.2);\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/health-statistics.md:60
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_set_age() {\n"
|
|
" let mut bob = User::new(String::from(\"Bob\"), 32, 155.2);\n"
|
|
" assert_eq!(bob.age(), 32);\n"
|
|
" bob.set_age(33);\n"
|
|
" assert_eq!(bob.age(), 33);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_set_age() {\n"
|
|
" let mut bob = User::new(String::from(\"Bob\"), 32, 155.2);\n"
|
|
" assert_eq!(bob.age(), 32);\n"
|
|
" bob.set_age(33);\n"
|
|
" assert_eq!(bob.age(), 33);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:1
|
|
msgid "# Polygon Struct"
|
|
msgstr "# Estrutura do Polígono"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:3
|
|
msgid ""
|
|
"We will create a `Polygon` struct which contain some points. Copy the code below\n"
|
|
"to <https://play.rust-lang.org/> and fill in the missing methods to make the\n"
|
|
"tests pass:"
|
|
msgstr ""
|
|
"Vamos criar uma estrutura `Polygon` que contém alguns Points. Copie o código abaixo\n"
|
|
"para <https://play.rust-lang.org/> e preencha os métodos que faltam para fazer o\n"
|
|
"tests passam:"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:7 src/exercises/day-2/luhn.md:23 src/exercises/day-2/strings-iterators.md:12
|
|
msgid ""
|
|
"```rust\n"
|
|
"// TODO: remove this when you're done with your implementation.\n"
|
|
"#![allow(unused_variables, dead_code)]"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"// TODO: remova isso quando terminar sua implementação.\n"
|
|
"#![allow(unused_variables, dead_code)]"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:11
|
|
msgid ""
|
|
"pub struct Point {\n"
|
|
" // add fields\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub struct Point {\n"
|
|
" // adiciona campos\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:15
|
|
msgid ""
|
|
"impl Point {\n"
|
|
" // add methods\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Point {\n"
|
|
" // adiciona métodos\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:19
|
|
#, fuzzy
|
|
msgid ""
|
|
"pub struct Polygon {\n"
|
|
" // add fields\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub struct Polígono {\n"
|
|
" // adiciona campos\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:23
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl Polygon {\n"
|
|
" // add methods\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Polígono {\n"
|
|
" // adiciona métodos\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:27
|
|
#, fuzzy
|
|
msgid ""
|
|
"pub struct Circle {\n"
|
|
" // add fields\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub struct Círculo {\n"
|
|
" // adiciona campos\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:31
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl Circle {\n"
|
|
" // add methods\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Círculo {\n"
|
|
" // adiciona métodos\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:35
|
|
msgid ""
|
|
"pub enum Shape {\n"
|
|
" Polygon(Polygon),\n"
|
|
" Circle(Circle),\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub enum Shape {\n"
|
|
" Polygon(Polygon),\n"
|
|
" Circle(Circle),\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:40 src/testing/test-modules.md:15
|
|
msgid ""
|
|
"#[cfg(test)]\n"
|
|
"mod tests {\n"
|
|
" use super::*;"
|
|
msgstr ""
|
|
"#[cfg(test)]\n"
|
|
"mod tests {\n"
|
|
" use super::*;"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:44 src/exercises/day-2/solutions-morning.md:165
|
|
msgid ""
|
|
" fn round_two_digits(x: f64) -> f64 {\n"
|
|
" (x * 100.0).round() / 100.0\n"
|
|
" }"
|
|
msgstr ""
|
|
" fn round_two_digits(x: f64) -> f64 {\n"
|
|
" (x * 100.0).round() / 100.0\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:48 src/exercises/day-2/solutions-morning.md:169
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_point_magnitude() {\n"
|
|
" let p1 = Point::new(12, 13);\n"
|
|
" assert_eq!(round_two_digits(p1.magnitude()), 17.69);\n"
|
|
" }"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_point_magnitude() {\n"
|
|
" let p1 = Point::new(12, 13);\n"
|
|
" assert_eq!(round_two_digits(p1.magnitude()), 17,69);\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:54 src/exercises/day-2/solutions-morning.md:175
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_point_dist() {\n"
|
|
" let p1 = Point::new(10, 10);\n"
|
|
" let p2 = Point::new(14, 13);\n"
|
|
" assert_eq!(round_two_digits(p1.dist(p2)), 5.00);\n"
|
|
" }"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_point_dist() {\n"
|
|
" let p1 = Point::new(10, 10);\n"
|
|
" let p2 = Point::new(14, 13);\n"
|
|
" assert_eq!(round_two_digits(p1.dist(p2)), 5,00);\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:61 src/exercises/day-2/solutions-morning.md:182
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_point_add() {\n"
|
|
" let p1 = Point::new(16, 16);\n"
|
|
" let p2 = p1 + Point::new(-4, 3);\n"
|
|
" assert_eq!(p2, Point::new(12, 19));\n"
|
|
" }"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_point_add() {\n"
|
|
" let p1 = Point::new(16, 16);\n"
|
|
" let p2 = p1 + Point::new(-4, 3);\n"
|
|
" assert_eq!(p2, Point::new(12, 19));\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:68 src/exercises/day-2/solutions-morning.md:189
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_polygon_left_most_point() {\n"
|
|
" let p1 = Point::new(12, 13);\n"
|
|
" let p2 = Point::new(16, 16);"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_polygon_left_most_point() {\n"
|
|
" let p1 = Point::new(12, 13);\n"
|
|
" let p2 = Point::new(16, 16);"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:73 src/exercises/day-2/solutions-morning.md:194
|
|
msgid ""
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(p1);\n"
|
|
" poly.add_point(p2);\n"
|
|
" assert_eq!(poly.left_most_point(), Some(p1));\n"
|
|
" }"
|
|
msgstr ""
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(p1);\n"
|
|
" poly.add_point(p2);\n"
|
|
" assert_eq!(poly.left_most_point(), Some(p1));\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:79 src/exercises/day-2/solutions-morning.md:200
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_polygon_iter() {\n"
|
|
" let p1 = Point::new(12, 13);\n"
|
|
" let p2 = Point::new(16, 16);"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_polygon_iter() {\n"
|
|
" let p1 = Point::new(12, 13);\n"
|
|
" let p2 = Point::new(16, 16);"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:84 src/exercises/day-2/solutions-morning.md:205
|
|
msgid ""
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(p1);\n"
|
|
" poly.add_point(p2);"
|
|
msgstr ""
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(p1);\n"
|
|
" poly.add_point(p2);"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:88 src/exercises/day-2/solutions-morning.md:209
|
|
msgid ""
|
|
" let points = poly.iter().cloned().collect::<Vec<_>>();\n"
|
|
" assert_eq!(points, vec![Point::new(12, 13), Point::new(16, 16)]);\n"
|
|
" }"
|
|
msgstr ""
|
|
" let Points = poly.iter().cloned().collect::<Vec<_>>();\n"
|
|
" assert_eq!(Points, vec![Point::new(12, 13), Point::new(16, 16)]);\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:92
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_shape_perimeters() {\n"
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(Point::new(12, 13));\n"
|
|
" poly.add_point(Point::new(17, 11));\n"
|
|
" poly.add_point(Point::new(16, 16));\n"
|
|
" let shapes = vec![\n"
|
|
" Shape::from(poly),\n"
|
|
" Shape::from(Circle::new(Point::new(10, 20), 5)),\n"
|
|
" ];\n"
|
|
" let perimeters = shapes\n"
|
|
" .iter()\n"
|
|
" .map(Shape::perimeter)\n"
|
|
" .map(round_two_digits)\n"
|
|
" .collect::<Vec<_>>();\n"
|
|
" assert_eq!(perimeters, vec![15.48, 31.42]);\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_shape_perimeters() {\n"
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(Point::new(12, 13));\n"
|
|
" poly.add_point(Point::new(17, 11));\n"
|
|
" poly.add_point(Point::new(16, 16));\n"
|
|
" let shapes = vec![\n"
|
|
" Shape::de(poly),\n"
|
|
" Shape::de(Circle::new(Point::new(10, 20), 5)),\n"
|
|
" ];\n"
|
|
" let perimeters = shapes\n"
|
|
" .iter()\n"
|
|
" .map(Shape::perimeter)\n"
|
|
" .map(round_two_digits)\n"
|
|
" .collect::<Vec<_>>();\n"
|
|
" assert_eq!(perimeters, vec![15.48, 31.42]);\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:111 src/exercises/day-2/luhn.md:68
|
|
msgid ""
|
|
"#[allow(dead_code)]\n"
|
|
"fn main() {}\n"
|
|
"```"
|
|
msgstr ""
|
|
"#[allow(dead_code)]\n"
|
|
"fn main() {}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-2/points-polygons.md:117
|
|
msgid ""
|
|
"Since the method signatures are missing from the problem statements, the key part\n"
|
|
"of the exercise is to specify those correctly. Do not modify any of the tests."
|
|
msgstr ""
|
|
"Como as assinaturas do método estão faltando nas declarações do problema, a parte principal\n"
|
|
"do exercício é especificá-los corretamente."
|
|
|
|
#: src/exercises/day-2/points-polygons.md:120
|
|
msgid ""
|
|
"Other interesting parts of the exercise:\n"
|
|
msgstr ""
|
|
"Outras partes interessantes do exercício:\n"
|
|
|
|
msgid "* Derive a `Copy` trait for some structs, as in tests the methods sometimes don't borrow their arguments.\n"
|
|
"* Discover that `Add` trait must be implemented for two objects to be addable via \"+\". Note that we do not discuss "
|
|
"generics until Day 3."
|
|
msgstr ""
|
|
"* Derive um trait `Copy` para algumas Structs, já que em testes os métodos às vezes não emprestam seus argumentos.\n"
|
|
"* Descubra que o trait `Add` deve ser implementado para que dois objetos sejam adicionados via \"+\"."
|
|
|
|
#: src/control-flow.md:1
|
|
msgid "# Control Flow"
|
|
msgstr "# Controle de fluxo"
|
|
|
|
#: src/control-flow.md:3
|
|
msgid ""
|
|
"As we have seen, `if` is an expression in Rust. It is used to conditionally\n"
|
|
"evaluate one of two blocks, but the blocks can have a value which then becomes\n"
|
|
"the value of the `if` expression. Other control flow expressions work similarly\n"
|
|
"in Rust."
|
|
msgstr ""
|
|
"Como vimos, `if` é uma expressão em Rust. É usado para condicionalmente\n"
|
|
"avaliar um dos dois blocos, mas os blocos podem ter um valor que então se torna\n"
|
|
"o valor da expressão `if`. Outras expressões de fluxo de controle funcionam de forma semelhante\n"
|
|
"em rust."
|
|
|
|
#: src/control-flow/blocks.md:1
|
|
msgid "# Blocks"
|
|
msgstr "# Blocos"
|
|
|
|
#: src/control-flow/blocks.md:3
|
|
msgid ""
|
|
"A block in Rust has a value and a type: the value is the last expression of the\n"
|
|
"block:"
|
|
msgstr ""
|
|
"Um bloco em Rust tem um valor e um tipo: o valor é a última expressão do\n"
|
|
"quadra:"
|
|
|
|
#: src/control-flow/blocks.md:6
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let x = {\n"
|
|
" let y = 10;\n"
|
|
" println!(\"y: {y}\");\n"
|
|
" let z = {\n"
|
|
" let w = {\n"
|
|
" 3 + 4\n"
|
|
" };\n"
|
|
" println!(\"w: {w}\");\n"
|
|
" y * w\n"
|
|
" };\n"
|
|
" println!(\"z: {z}\");\n"
|
|
" z - y\n"
|
|
" };\n"
|
|
" println!(\"x: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let x = {\n"
|
|
" let y = 10;\n"
|
|
" println!(\"y: {y}\");\n"
|
|
" let z = {\n"
|
|
" let w = {\n"
|
|
" 3 + 4\n"
|
|
" };\n"
|
|
" println!(\"w: {w}\");\n"
|
|
" e * w\n"
|
|
" };\n"
|
|
" println!(\"z: {z}\");\n"
|
|
" z - y\n"
|
|
" };\n"
|
|
" println!(\"x: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/blocks.md:25
|
|
msgid ""
|
|
"The same rule is used for functions: the value of the function body is the\n"
|
|
"return value:"
|
|
msgstr ""
|
|
"A mesma regra é usada para funções: o valor do corpo da função é o\n"
|
|
"valor de retorno:"
|
|
|
|
#: src/control-flow/blocks.md:28
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn double(x: i32) -> i32 {\n"
|
|
" x + x\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/control-flow/blocks.md:33
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" println!(\"doubled: {}\", double(7));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/control-flow/blocks.md:38
|
|
msgid "However if the last expression ends with `;`, then the resulting value and type is `()`."
|
|
msgstr "No entanto, se a última expressão terminar com `;`, o valor e o tipo resultante serão `()`."
|
|
|
|
#: src/control-flow/blocks.md:42
|
|
msgid ""
|
|
"* The point of this slide is to show that blocks have a type and value in Rust. \n"
|
|
"* You can show how the value of the block changes by changing the last line in the block. For instance, adding/removing a "
|
|
"semicolon or using a `return`.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* O objetivo deste slide é mostrar que os blocos têm um tipo e valor em Rust.\n"
|
|
"* Você pode mostrar como o valor do bloco muda alterando a última linha do bloco. Por exemplo, adicionar/remover um Point e "
|
|
"vírgula ou usar um `return`.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/control-flow/if-expressions.md:1
|
|
msgid "# `if` expressions"
|
|
msgstr "# expressões `if`"
|
|
|
|
#: src/control-flow/if-expressions.md:3
|
|
msgid "You use `if` very similarly to how you would in other languages:"
|
|
msgstr "Você usa `if` de forma muito semelhante a como faria em outros idiomas:"
|
|
|
|
#: src/control-flow/if-expressions.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" if x % 2 == 0 {\n"
|
|
" x = x / 2;\n"
|
|
" } else {\n"
|
|
" x = 3 * x + 1;\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" if x % 2 == 0 {\n"
|
|
" x = x/2;\n"
|
|
" } else {\n"
|
|
" x = 3 * x + 1;\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/if-expressions.md:16
|
|
msgid "In addition, you can use it as an expression. This does the same as above:"
|
|
msgstr "Além disso, você pode usá-lo como uma expressão. Isso faz o mesmo que acima:"
|
|
|
|
#: src/control-flow/if-expressions.md:18
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" x = if x % 2 == 0 {\n"
|
|
" x / 2\n"
|
|
" } else {\n"
|
|
" 3 * x + 1\n"
|
|
" };\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" x = if x % 2 == 0 {\n"
|
|
" x / 2\n"
|
|
" } else {\n"
|
|
" 3 * x + 1\n"
|
|
" };\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/if-expressions.md:31
|
|
msgid ""
|
|
"Because `if` is an expression and must have a particular type, both of its branch blocks must have the same type. Consider "
|
|
"showing what happens if you add `;` after `x / 2` in the second example.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"Como `if` é uma expressão e deve ter um tipo específico, ambos os blocos de ramificação devem ter o mesmo tipo. Considere "
|
|
"mostrar o que acontece se você adicionar `;` depois de `x / 2` no segundo exemplo.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/control-flow/if-let-expressions.md:1
|
|
msgid "# `if let` expressions"
|
|
msgstr "# expressões `if let`"
|
|
|
|
#: src/control-flow/if-let-expressions.md:3
|
|
msgid "If you want to match a value against a pattern, you can use `if let`:"
|
|
msgstr "Se você deseja corresponder um valor a um padrão, pode usar `if let`:"
|
|
|
|
#: src/control-flow/if-let-expressions.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let arg = std::env::args().next();\n"
|
|
" if let Some(value) = arg {\n"
|
|
" println!(\"Program name: {value}\");\n"
|
|
" } else {\n"
|
|
" println!(\"Missing name?\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let arg = std::env::args().next();\n"
|
|
" if let Some(value) = arg {\n"
|
|
" println!(\"name do programa: {value}\");\n"
|
|
" } else {\n"
|
|
" println!(\"Falta name?\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/if-let-expressions.md:16 src/control-flow/while-let-expressions.md:21
|
|
#: src/control-flow/match-expressions.md:22
|
|
msgid ""
|
|
"See [pattern matching](../pattern-matching.md) for more details on patterns in\n"
|
|
"Rust."
|
|
msgstr ""
|
|
"Consulte [correspondência de padrões](../pattern-matching.md) para obter mais detalhes sobre padrões em\n"
|
|
"rust."
|
|
|
|
#: src/control-flow/if-let-expressions.md:21
|
|
msgid ""
|
|
"* `if let` can be more concise than `match`, e.g., when only one case is interesting. In contrast, `match` requires all "
|
|
"branches to be covered.\n"
|
|
" * For the similar use case consider demonstrating a newly stabilized [`let else`](https://github.com/rust-lang/rust/"
|
|
"pull/93628) feature.\n"
|
|
"* A common usage is handling `Some` values when working with `Option`.\n"
|
|
"* Unlike `match`, `if let` does not support guard clauses for pattern matching."
|
|
msgstr ""
|
|
"* `if let` pode ser mais conciso que `match`, por exemplo, quando apenas um caso é interessante. Em contraste, `match` "
|
|
"requer que todas as ramificações sejam cobertas.\n"
|
|
" * Para o caso de uso semelhante, considere demonstrar um recurso [`let else`](https://github.com/rust-lang/rust/"
|
|
"pull/93628) recentemente estabilizado.\n"
|
|
"* Um uso comum é lidar com valores `Some` ao trabalhar com `Option`.\n"
|
|
"* Ao contrário de `match`, `if let` não suporta cláusulas de guarda para casamento de padrões."
|
|
|
|
#: src/control-flow/while-expressions.md:1
|
|
msgid "# `while` expressions"
|
|
msgstr "# expressões `enquanto`"
|
|
|
|
#: src/control-flow/while-expressions.md:3
|
|
msgid "The `while` keyword works very similar to other languages:"
|
|
msgstr "A palavra-chave `while` funciona de maneira muito semelhante a outras linguagens:"
|
|
|
|
#: src/control-flow/while-expressions.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" while x != 1 {\n"
|
|
" x = if x % 2 == 0 {\n"
|
|
" x / 2\n"
|
|
" } else {\n"
|
|
" 3 * x + 1\n"
|
|
" };\n"
|
|
" }\n"
|
|
" println!(\"Final x: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" while x != 1 {\n"
|
|
" x = if x % 2 == 0 {\n"
|
|
" x / 2\n"
|
|
" } else {\n"
|
|
" 3 * x + 1\n"
|
|
" };\n"
|
|
" }\n"
|
|
" println!(\"X final: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/while-let-expressions.md:1
|
|
msgid "# `while let` expressions"
|
|
msgstr "# expressões `while let`"
|
|
|
|
#: src/control-flow/while-let-expressions.md:3
|
|
msgid ""
|
|
"Like with `if`, there is a `while let` variant which repeatedly tests a value\n"
|
|
"against a pattern:"
|
|
msgstr ""
|
|
"Como com `if`, há uma variante `while let` que testa repetidamente um valor\n"
|
|
"contra um padrão:"
|
|
|
|
#: src/control-flow/while-let-expressions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];\n"
|
|
" let mut iter = v.into_iter();"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];\n"
|
|
" let mut iter = v.into_iter();"
|
|
|
|
#: src/control-flow/while-let-expressions.md:11
|
|
msgid ""
|
|
" while let Some(x) = iter.next() {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" while let Some(x) = iter.next() {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/while-let-expressions.md:17
|
|
msgid ""
|
|
"Here the iterator returned by `v.iter()` will return a `Option<i32>` on every\n"
|
|
"call to `next()`. It returns `Some(x)` until it is done, after which it will\n"
|
|
"return `None`. The `while let` lets us keep iterating through all items."
|
|
msgstr ""
|
|
"Aqui o iterador retornado por `v.iter()` retornará uma `Option<i32>` em cada\n"
|
|
"chamada para `next ()`. Ele retorna `Some(x)` até que seja concluído, após o qual será\n"
|
|
"retorna 'Nenhum'. O `while let` nos permite continuar iterando por todos os itens."
|
|
|
|
#: src/control-flow/while-let-expressions.md:27
|
|
msgid ""
|
|
"* Point out that the `while let` loop will keep going as long as the value matches the pattern.\n"
|
|
"* You could rewrite the `while let` loop as an infinite loop with an if statement that breaks when there is no value to "
|
|
"unwrap for `iter.next()`. The `while let` provides syntactic sugar for the above scenario.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* Saliente que o loop `while let` continuará enquanto o valor corresponder ao padrão.\n"
|
|
"* Você pode reescrever o loop `while let` como um loop infinito com uma instrução if que quebra quando não há valor para "
|
|
"desempacotar para `iter.next()`. O `while let` fornece açúcar sintático para o cenário acima.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/control-flow/for-expressions.md:1
|
|
msgid "# `for` expressions"
|
|
msgstr "# expressões `for`"
|
|
|
|
#: src/control-flow/for-expressions.md:3
|
|
msgid ""
|
|
"The `for` expression is closely related to the `while let` expression. It will\n"
|
|
"automatically call `into_iter()` on the expression and then iterate over it:"
|
|
msgstr ""
|
|
"A expressão `for` está intimamente relacionada com a expressão `while let`. Será\n"
|
|
"chame automaticamente `into_iter()` na expressão e, em seguida, itere sobre ela:"
|
|
|
|
#: src/control-flow/for-expressions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];"
|
|
|
|
#: src/control-flow/for-expressions.md:10
|
|
msgid ""
|
|
" for x in v {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" }\n"
|
|
" \n"
|
|
" for i in (0..10).step_by(2) {\n"
|
|
" println!(\"i: {i}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" for x in v {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" }\n"
|
|
" \n"
|
|
" for i in (0..10).step_by(2) {\n"
|
|
" println!(\"i: {i}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/for-expressions.md:20
|
|
msgid "You can use `break` and `continue` here as usual."
|
|
msgstr "Você pode usar `break` e `continue` aqui como de costume."
|
|
|
|
#: src/control-flow/for-expressions.md:22
|
|
msgid ""
|
|
"* Index iteration is not a special syntax in Rust for just that case.\n"
|
|
"* `(0..10)` is a range that implements an `Iterator` trait. \n"
|
|
"* `step_by` is a method that returns another `Iterator` that skips every other element. \n"
|
|
"* Modify the elements in the vector and explain the compiler errors. Change vector `v` to be mutable and the for loop to "
|
|
"`for x in v.iter_mut()`."
|
|
msgstr ""
|
|
"* A iteração de índice não é uma sintaxe especial no Rust apenas para esse caso.\n"
|
|
"* `(0..10)` é um intervalo que implementa uma característica `Iterator`.\n"
|
|
"* `step_by` é um método que retorna outro `Iterator` que pula todos os outros elementos.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/control-flow/loop-expressions.md:1
|
|
msgid "# `loop` expressions"
|
|
msgstr "# expressões `loop`"
|
|
|
|
#: src/control-flow/loop-expressions.md:3
|
|
msgid ""
|
|
"Finally, there is a `loop` keyword which creates an endless loop. Here you must\n"
|
|
"either `break` or `return` to stop the loop:"
|
|
msgstr ""
|
|
"Finalmente, há uma palavra-chave `loop` que cria um loop infinito. Aqui você deve\n"
|
|
"`break` ou `return` para parar o loop:"
|
|
|
|
#: src/control-flow/loop-expressions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut x = 10;\n"
|
|
" loop {\n"
|
|
" x = if x % 2 == 0 {\n"
|
|
" x / 2\n"
|
|
" } else {\n"
|
|
" 3 * x + 1\n"
|
|
" };\n"
|
|
" if x == 1 {\n"
|
|
" break;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" println!(\"Final x: {x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/control-flow/loop-expressions.md:23
|
|
msgid ""
|
|
"* Break the `loop` with a value (e.g. `break 8`) and print it out."
|
|
msgstr ""
|
|
|
|
#: src/control-flow/match-expressions.md:1
|
|
msgid "# `match` expressions"
|
|
msgstr "# expressões `match`"
|
|
|
|
#: src/control-flow/match-expressions.md:3
|
|
msgid ""
|
|
"The `match` keyword is used to match a value against one or more patterns. In\n"
|
|
"that sense, it works like a series of `if let` expressions:"
|
|
msgstr ""
|
|
"A palavra-chave `match` é usada para corresponder um valor a um ou mais padrões. No\n"
|
|
"nesse sentido, funciona como uma série de expressões `if let`:"
|
|
|
|
#: src/control-flow/match-expressions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" match std::env::args().next().as_deref() {\n"
|
|
" Some(\"cat\") => println!(\"Will do cat things\"),\n"
|
|
" Some(\"ls\") => println!(\"Will ls some files\"),\n"
|
|
" Some(\"mv\") => println!(\"Let's move some files\"),\n"
|
|
" Some(\"rm\") => println!(\"Uh, dangerous!\"),\n"
|
|
" None => println!(\"Hmm, no program name?\"),\n"
|
|
" _ => println!(\"Unknown program name!\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" match std::env::args().next().as_deref() {\n"
|
|
" Some(\"gato\") => println!(\"Vai fazer coisas de gato\"),\n"
|
|
" Some(\"ls\") => println!(\"Serão alguns arquivos\"),\n"
|
|
" Some(\"mv\") => println!(\"Vamos mover alguns arquivos\"),\n"
|
|
" Some(\"rm\") => println!(\"Uh, perigoso!\"),\n"
|
|
" None => println!(\"Hmm, nenhum name de programa?\"),\n"
|
|
" _ => println!(\"name de programa desconhecido!\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/match-expressions.md:19
|
|
msgid ""
|
|
"Like `if let`, each match arm must have the same type. The type is the last\n"
|
|
"expression of the block, if any. In the example above, the type is `()`."
|
|
msgstr ""
|
|
"Como `if let`, cada braço de correspondência deve ter o mesmo tipo. O tipo é o último\n"
|
|
"expressão do bloco, se houver. No exemplo acima, o tipo é `()`."
|
|
|
|
#: src/control-flow/match-expressions.md:25
|
|
msgid ""
|
|
"* Save the match expression to a variable and print it out.\n"
|
|
"* Remove `.as_deref()` and explain the error.\n"
|
|
" * `std::env::Agrs().next` returns an `Option<&String>`, but we cannot match against `String`.\n"
|
|
" * `as_deref()` transforms an `Option<T>` to `Option<T::Target>`. In our case, this turns `Option<&String>` into "
|
|
"`Option<&str>`.\n"
|
|
" * We can now use pattern matching to match against the `&str` inside `Option`.\n"
|
|
"</details>"
|
|
msgstr ""
|
|
|
|
#: src/control-flow/break-continue.md:1
|
|
msgid "# `break` and `continue`"
|
|
msgstr "# `interromper` e `continuar`"
|
|
|
|
#: src/control-flow/break-continue.md:3
|
|
msgid ""
|
|
"If you want to exit a loop early, use `break`, if you want to immediately start\n"
|
|
"the next iteration use `continue`. Both `continue` and `break` can optionally\n"
|
|
"take a label argument which is used to break out of nested loops:"
|
|
msgstr ""
|
|
"Se você quiser sair de um loop mais cedo, use `break`, se quiser iniciar imediatamente\n"
|
|
"a próxima iteração usa `continue`. Ambos `continue` e `break` podem opcionalmente\n"
|
|
"pegue um argumento de rótulo que é usado para sair de loops aninhados:"
|
|
|
|
#: src/control-flow/break-continue.md:7
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];\n"
|
|
" let mut iter = v.into_iter();\n"
|
|
" 'outer: while let Some(x) = iter.next() {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" let mut i = 0;\n"
|
|
" while i < x {\n"
|
|
" println!(\"x: {x}, i: {i}\");\n"
|
|
" i += 1;\n"
|
|
" if i == 3 {\n"
|
|
" break 'outer;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];\n"
|
|
" let mut iter = v.into_iter();\n"
|
|
" 'outer: while let Some(x) = iter.next() {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" let mut i = 0;\n"
|
|
" while i < x {\n"
|
|
" println!(\"x: {x}, i: {i}\");\n"
|
|
" i += 1;\n"
|
|
" if i == 3 {\n"
|
|
" break 'outer;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/control-flow/break-continue.md:25
|
|
msgid "In this case we break the outer loop after 3 iterations of the inner loop."
|
|
msgstr "Neste caso, quebramos o loop externo após 3 iterações do loop interno."
|
|
|
|
#: src/std.md:1
|
|
msgid "# Standard Library"
|
|
msgstr "# Biblioteca padrão"
|
|
|
|
#: src/std.md:3
|
|
msgid ""
|
|
"Rust comes with a standard library which helps establish a set of common types\n"
|
|
"used by Rust library and programs. This way, two libraries can work together\n"
|
|
"smoothly because they both use the same `String` type."
|
|
msgstr ""
|
|
"Rust vem com uma biblioteca padrão que ajuda a estabelecer um conjunto de tipos comuns\n"
|
|
"usado pela biblioteca e programas Rust. Dessa forma, duas bibliotecas podem trabalhar juntas\n"
|
|
"sem problemas porque ambos usam o mesmo tipo `String`."
|
|
|
|
#: src/std.md:7
|
|
msgid "The common vocabulary types include:"
|
|
msgstr "Os tipos de vocabulário comuns incluem:"
|
|
|
|
#: src/std.md:9
|
|
msgid ""
|
|
"* [`Option` and `Result`](std/option-result.md) types: used for optional values\n"
|
|
" and [error handling](error-handling.md)."
|
|
msgstr ""
|
|
"* Tipos [`Option` e `Result`](std/option-result.md): usados para valores opcionais\n"
|
|
" e [manipulação de erros](manipulação de erros.md)."
|
|
|
|
#: src/std.md:12
|
|
msgid "* [`String`](std/string.md): the default string type used for owned data."
|
|
msgstr "* [`String`](std/string.md): o tipo de string padrão usado para dados de ownership."
|
|
|
|
#: src/std.md:14
|
|
msgid "* [`Vec`](std/vec.md): a standard extensible vector."
|
|
msgstr "* [`Vec`](std/vec.md): um vetor extensível padrão."
|
|
|
|
#: src/std.md:16
|
|
msgid ""
|
|
"* [`HashMap`](std/hashmap.md): a hash map type with a configurable hashing\n"
|
|
" algorithm."
|
|
msgstr ""
|
|
"* [`HashMap`](std/hashmap.md): um tipo de mapa hash com um hashing configurável\n"
|
|
" algoritmo."
|
|
|
|
#: src/std.md:19
|
|
msgid "* [`Box`](std/box.md): an owned pointer for heap-allocated data."
|
|
msgstr "* [`Box`](std/box.md): um ponteiro próprio para dados alocados em heap."
|
|
|
|
#: src/std.md:21
|
|
msgid "* [`Rc`](std/rc.md): a shared reference-counted pointer for heap-allocated data."
|
|
msgstr "* [`Rc`](std/rc.md): um ponteiro de contagem de referência compartilhado para dados alocados em heap."
|
|
|
|
#: src/std.md:23
|
|
msgid ""
|
|
" * In fact, Rust contains several layers of the Standard Library: `core`, `alloc` and `std`. \n"
|
|
" * `core` includes the most basic types and functions that don't depend on `libc`, allocator or\n"
|
|
" even the presence of an operating system. \n"
|
|
" * `alloc` includes types which require a global heap allocator, such as `Vec`, `Box` and `Arc`.\n"
|
|
" * Embedded Rust applications often only use `core`, and sometimes `alloc`."
|
|
msgstr ""
|
|
" * Na verdade, Rust contém várias camadas da Biblioteca Padrão: `core`, `alloc` e `std`.\n"
|
|
" * `core` inclui os tipos e funções mais básicos que não dependem de `libc`, alocador ou\n"
|
|
" até mesmo a presença de um sistema operacional.\n"
|
|
" * `alloc` inclui tipos que requerem um alocador de heap global, como `Vec`, `Box` e `Arc`.\n"
|
|
" * Os aplicativos Rust integrados geralmente usam apenas `core` e, às vezes, `alloc`."
|
|
|
|
#: src/std/option-result.md:1
|
|
msgid "# `Option` and `Result`"
|
|
msgstr "# `Option` e `Result`"
|
|
|
|
#: src/std/option-result.md:3
|
|
msgid "The types represent optional data:"
|
|
msgstr "Os tipos representam dados opcionais:"
|
|
|
|
#: src/std/option-result.md:5
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let numbers = vec![10, 20, 30];\n"
|
|
" let first: Option<&i8> = numbers.first();\n"
|
|
" println!(\"first: {first:?}\");"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let números = vec![10, 20, 30];\n"
|
|
" let primeiro: Option<&i8> = números.primeiro();\n"
|
|
" println!(\"primeiro: {primeiro:?}\");"
|
|
|
|
#: src/std/option-result.md:11
|
|
#, fuzzy
|
|
msgid ""
|
|
" let idx: Result<usize, usize> = numbers.binary_search(&10);\n"
|
|
" println!(\"idx: {idx:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" let idx: Result<usize, usize> = numbers.binary_search(&10);\n"
|
|
" println!(\"idx: {idx:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/std/option-result.md:18
|
|
msgid ""
|
|
"* `Option` and `Result` are widely used not just in the standard library.\n"
|
|
"* `Option<&T>` has zero space overhead compared to `&T`.\n"
|
|
"* `Result` is the standard type to implement error handling as we will see on Day 3.\n"
|
|
"* `binary_search` returns `Result<usize, usize>`.\n"
|
|
" * If found, `Result::Ok` holds the index where the element is found.\n"
|
|
" * Otherwise, `Result::Err` contains the index where such an element should be inserted."
|
|
msgstr ""
|
|
"* `Option` e `Result` são amplamente usados não apenas na biblioteca padrão.\n"
|
|
"* `Option<&T>` tem sobrecargo de espaço zero em comparação com `&T`.\n"
|
|
"* `Result` é o tipo padrão para implementar o tratamento de erros, como veremos no Dia 3.\n"
|
|
"* `binary_search` retorna `Result<usize, usize>`.\n"
|
|
" * Se encontrado, `Result::Ok` contém o índice onde o elemento foi encontrado.\n"
|
|
" * Caso contrário, `Result::Err` contém o índice onde tal elemento deve ser inserido."
|
|
|
|
#: src/std/string.md:1
|
|
msgid "# String"
|
|
msgstr "# String"
|
|
|
|
#: src/std/string.md:3
|
|
msgid "[`String`][1] is the standard heap-allocated growable UTF-8 string buffer:"
|
|
msgstr "[`String`][1] é o buffer de string UTF-8 expansível alocado por heap padrão:"
|
|
|
|
#: src/std/string.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut s1 = String::new();\n"
|
|
" s1.push_str(\"Hello\");\n"
|
|
" println!(\"s1: len = {}, capacity = {}\", s1.len(), s1.capacity());"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut s1 = String::new();\n"
|
|
" s1.push_str(\"Olá\");\n"
|
|
" println!(\"s1: len = {}, capacage = {}\", s1.len(), s1.capacity());"
|
|
|
|
#: src/std/string.md:11
|
|
msgid ""
|
|
" let mut s2 = String::with_capacity(s1.len() + 1);\n"
|
|
" s2.push_str(&s1);\n"
|
|
" s2.push('!');\n"
|
|
" println!(\"s2: len = {}, capacity = {}\", s2.len(), s2.capacity());"
|
|
msgstr ""
|
|
" let mut s2 = String::with_capacity(s1.len() + 1);\n"
|
|
" s2.push_str(&s1);\n"
|
|
" s2.push('!');\n"
|
|
" println!(\"s2: len = {}, capacage = {}\", s2.len(), s2.capacity());"
|
|
|
|
#: src/std/string.md:16
|
|
msgid ""
|
|
" let s3 = String::from(\"🇨🇭\");\n"
|
|
" println!(\"s3: len = {}, number of chars = {}\", s3.len(),\n"
|
|
" s3.chars().count());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" let s3 = String::from(\"🇨🇭\");\n"
|
|
" println!(\"s3: len = {}, número de caracteres = {}\", s3.len(),\n"
|
|
" s3.chars().count());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/std/string.md:22
|
|
msgid ""
|
|
"`String` implements [`Deref<Target = str>`][2], which means that you can call all\n"
|
|
"`str` methods on a `String`."
|
|
msgstr ""
|
|
"`String` implementa [`Deref<Target = str>`][2], o que significa que você pode chamar todos\n"
|
|
"Métodos `str` em uma `String`."
|
|
|
|
#: src/std/string.md:25
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/string/struct.String.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/string/struct.String.html#deref-methods-str"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/string/struct.String.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/string/struct.String.html#deref-methods-str"
|
|
|
|
#: src/std/string.md:30
|
|
msgid ""
|
|
"* `len` returns the size of the `String` in bytes, not its length in characters.\n"
|
|
"* `chars` returns an iterator over the actual characters.\n"
|
|
"* `String` implements `Deref<Target = str>` which transparently gives it access to `str`'s methods."
|
|
msgstr ""
|
|
"* `len` retorna o tamanho da `String` em bytes, não seu comprimento em caracteres.\n"
|
|
"* `chars` retorna um iterador sobre os caracteres reais.\n"
|
|
"* `String` implementa `Deref<Target = str>` que dá acesso transparente aos métodos de `str`."
|
|
|
|
#: src/std/vec.md:1
|
|
msgid "# `Vec`"
|
|
msgstr "# `Vec`"
|
|
|
|
#: src/std/vec.md:3
|
|
msgid "[`Vec`][1] is the standard resizable heap-allocated buffer:"
|
|
msgstr "[`Vec`][1] é o buffer redimensionável padrão alocado em heap:"
|
|
|
|
#: src/std/vec.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut v1 = Vec::new();\n"
|
|
" v1.push(42);\n"
|
|
" println!(\"v1: len = {}, capacity = {}\", v1.len(), v1.capacity());"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut v1 = Vec::new();\n"
|
|
" v1.push(42);\n"
|
|
" println!(\"v1: len = {}, capacage = {}\", v1.len(), v1.capacity());"
|
|
|
|
#: src/std/vec.md:11
|
|
#, fuzzy
|
|
msgid ""
|
|
" let mut v2 = Vec::with_capacity(v1.len() + 1);\n"
|
|
" v2.extend(v1.iter());\n"
|
|
" v2.push(9999);\n"
|
|
" println!(\"v2: len = {}, capacity = {}\", v2.len(), v2.capacity());"
|
|
msgstr ""
|
|
" let mut v2 = Vec::with_capacity(v1.len() + 1);\n"
|
|
" v2.extend(v1.iter());\n"
|
|
" v2.push(9999);\n"
|
|
" println!(\"v2: len = {}, capacage = {}\", v2.len(), v2.capacity());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/std/vec.md:16
|
|
msgid ""
|
|
" // Canonical macro to initialize a vector with elements.\n"
|
|
" let mut v3 = vec![0, 0, 1, 2, 3, 4];"
|
|
msgstr ""
|
|
|
|
#: src/std/vec.md:19
|
|
msgid ""
|
|
" // Retain only the even elements.\n"
|
|
" v3.retain(|x| x % 2 == 0);\n"
|
|
" println!(\"{v3:?}\");"
|
|
msgstr ""
|
|
|
|
#: src/std/vec.md:23
|
|
msgid ""
|
|
" // Remove consecutive duplicates.\n"
|
|
" v3.dedup();\n"
|
|
" println!(\"{v3:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/std/vec.md:29
|
|
msgid ""
|
|
"`Vec` implements [`Deref<Target = [T]>`][2], which means that you can call slice\n"
|
|
"methods on a `Vec`."
|
|
msgstr ""
|
|
"`Vec` implementa [`Deref<Target = [T]>`][2], o que significa que você pode chamar slice\n"
|
|
"métodos em um `Vec`."
|
|
|
|
#: src/std/vec.md:32
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/vec/struct.Vec.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/vec/struct.Vec.html#deref-methods-[T]"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/vec/struct.Vec.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/vec/struct.Vec.html#deref-methods-[T]"
|
|
|
|
#: src/std/vec.md:37
|
|
msgid ""
|
|
"* `Vec` is a type of collection, along with `String` and `HashMap`. The data it contains is stored\n"
|
|
" on the heap. This means the amount of data doesn't need to be known at compile time. It can grow\n"
|
|
" or shrink at runtime.\n"
|
|
"* Notice how `Vec<T>` is a generic type too, but you don't have to specify `T` explicitly. As always\n"
|
|
" with Rust type inference, the `T` was established during the first `push` call.\n"
|
|
"* `vec![...]` is a canonical macro to use instead of `Vec::new()` and it supports adding initial\n"
|
|
" elements to the vector.\n"
|
|
"* To index the vector you use `[` `]`, but they will panic if out of bounds. Alternatively, using\n"
|
|
" `get` will return an `Option`. The `pop` function will remove the last element.\n"
|
|
"* Show iterating over a vector and mutating the value:\n"
|
|
" `for e in &mut v { *e += 50; }`"
|
|
msgstr ""
|
|
"<details>\n"
|
|
" \n"
|
|
"* `Vec` é um tipo de coleção, junto com `String` e `HashMap`. Os dados que ele contém são armazenados\n"
|
|
" na pilha. Isso significa que a quantage de dados não precisa ser conhecida em tempo de compilação. pode crescer\n"
|
|
" ou encolher em tempo de execução.\n"
|
|
"* Observe como `Vec<T>` também é um tipo genérico, mas você não precisa especificar `T` explicitamente. Como sempre\n"
|
|
" com inferência de tipo Rust, o `T` foi estabelecido durante a primeira chamada `push`.\n"
|
|
"* `vec![...]` é uma macro canônica para usar em vez de `Vec::new()` e suporta adicionar iniciais\n"
|
|
" elementos ao vetor.\n"
|
|
"* Para indexar o vetor, você usa `[` `]`, mas eles entrarão em pânico se estiverem fora dos limites. Alternativamente, "
|
|
"usando\n"
|
|
" `get` retornará uma `Option`. A função `pop` removerá o último elemento.\n"
|
|
"* Mostrar iterando sobre um vetor e alterando o valor:\n"
|
|
" `for e in &mut v { *e += 50; }`"
|
|
|
|
#: src/std/hashmap.md:1
|
|
msgid "# `HashMap`"
|
|
msgstr "#`HashMap`"
|
|
|
|
#: src/std/hashmap.md:3
|
|
msgid "Standard hash map with protection against HashDoS attacks:"
|
|
msgstr "Mapa de hash padrão com proteção contra ataques HashDoS:"
|
|
|
|
#: src/std/hashmap.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::collections::HashMap;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::collections::HashMap;"
|
|
|
|
#: src/std/hashmap.md:8
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut page_counts = HashMap::new();\n"
|
|
" page_counts.insert(\"Adventures of Huckleberry Finn\".to_string(), 207);\n"
|
|
" page_counts.insert(\"Grimms' Fairy Tales\".to_string(), 751);\n"
|
|
" page_counts.insert(\"Pride and Prejudice\".to_string(), 303);"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut page_counts = HashMap::new();\n"
|
|
" page_counts.insert(\"Aventuras de Huckleberry Finn\".to_string(), 207);\n"
|
|
" page_counts.insert(\"Contos de Fadas dos Grimms\".to_string(), 751);\n"
|
|
" page_counts.insert(\"Orgulho e Preconceito\".to_string(), 303);"
|
|
|
|
#: src/std/hashmap.md:14
|
|
msgid ""
|
|
" if !page_counts.contains_key(\"Les Misérables\") {\n"
|
|
" println!(\"We know about {} books, but not Les Misérables.\",\n"
|
|
" page_counts.len());\n"
|
|
" }"
|
|
msgstr ""
|
|
" if !page_counts.contains_key(\"Os Miseráveis\") {\n"
|
|
" println!(\"Conhecemos {} livros, mas não Os Miseráveis.\",\n"
|
|
" page_counts.len());\n"
|
|
" }"
|
|
|
|
#: src/std/hashmap.md:19
|
|
#, fuzzy
|
|
msgid ""
|
|
" for book in [\"Pride and Prejudice\", \"Alice's Adventure in Wonderland\"] {\n"
|
|
" match page_counts.get(book) {\n"
|
|
" Some(count) => println!(\"{book}: {count} pages\"),\n"
|
|
" None => println!(\"{book} is unknown.\")\n"
|
|
" }\n"
|
|
" }"
|
|
msgstr ""
|
|
" for book in [\"Orgulho e Preconceito\", \"Alice no País das Maravilhas\"] {\n"
|
|
" match page_counts.get(book) {\n"
|
|
" Some(count) => println!(\"{book}: {count} páginas\"),\n"
|
|
" None => println!(\"{book} é desconhecido.\")\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/std/hashmap.md:26
|
|
msgid ""
|
|
" // Use the .entry() method to insert a value if nothing is found.\n"
|
|
" for book in [\"Pride and Prejudice\", \"Alice's Adventure in Wonderland\"] {\n"
|
|
" let page_count: &mut i32 = page_counts.entry(book.to_string()).or_insert(0);\n"
|
|
" *page_count += 1;\n"
|
|
" }"
|
|
msgstr ""
|
|
|
|
#: src/std/hashmap.md:32
|
|
msgid ""
|
|
" println!(\"{page_counts:#?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/std/hashmap.md:38
|
|
msgid "* Unlike `vec!`, there is unfortunately no standard `hashmap!` macro."
|
|
msgstr ""
|
|
|
|
#: src/std/box.md:1
|
|
msgid "# `Box`"
|
|
msgstr "# `Caixa`"
|
|
|
|
#: src/std/box.md:3
|
|
msgid "[`Box`][1] is an owned pointer to data on the heap:"
|
|
msgstr "[`Box`][1] é um ponteiro de ownership para dados no heap:"
|
|
|
|
#: src/std/box.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let five = Box::new(5);\n"
|
|
" println!(\"five: {}\", *five);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let cinco = Box::new(5);\n"
|
|
" println!(\"cinco: {}\", *cinco);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/std/box.md:13
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - -. .- - - - - - -.\n"
|
|
": : : :\n"
|
|
": five : : :\n"
|
|
": +-----+ : : +-----+ :\n"
|
|
": | o---|---+-----+-->| 5 | :\n"
|
|
": +-----+ : : +-----+ :\n"
|
|
": : : :\n"
|
|
": : : :\n"
|
|
"`- - - - - - -' `- - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
"```bob\n"
|
|
" Pilha\n"
|
|
".- - - - - - -. .- - - - - - -.\n"
|
|
": : : :\n"
|
|
": cinco : : :\n"
|
|
": +-----+ : : +-----+ :\n"
|
|
": | o---|---+-----+-->| 5 | :\n"
|
|
": +-----+ : : +-----+ :\n"
|
|
": : : :\n"
|
|
": : : :\n"
|
|
"`- - - - - - -' `- - - - - -'\n"
|
|
"```"
|
|
|
|
#: src/std/box.md:26
|
|
msgid ""
|
|
"`Box<T>` implements `Deref<Target = T>`, which means that you can [call methods\n"
|
|
"from `T` directly on a `Box<T>`][2]."
|
|
msgstr ""
|
|
"`Box<T>` implementa `Deref<Target = T>`, o que significa que você pode [chamar métodos\n"
|
|
"de `T` diretamente em um `Box<T>`][2]."
|
|
|
|
#: src/std/box.md:29
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/boxed/struct.Box.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/ops/trait.Deref.html#more-on-deref-coercion"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/boxed/struct.Box.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/ops/trait.Deref.html#more-on-deref-coercion"
|
|
|
|
#: src/std/box.md:34
|
|
msgid ""
|
|
"* `Box` is like `std::unique_ptr` in C++. \n"
|
|
"* In the above example, you can even leave out the `*` in the `println!` statement thanks to `Deref`. \n"
|
|
"* A `Box` can be useful when you:\n"
|
|
" * have a type whose size that can't be known at compile time, but the Rust compiler wants to know an exact size.\n"
|
|
" * want to transfer ownership of a large amount of data. To avoid copying large amounts of data on the stack, instead "
|
|
"store the data on the heap in a `Box` so only the pointer is moved.\n"
|
|
"</details>"
|
|
msgstr ""
|
|
|
|
#: src/std/box-recursive.md:1
|
|
msgid "# Box with Recursive Data Structures"
|
|
msgstr "# Caixa com Structs de Dados Recursivas"
|
|
|
|
#: src/std/box-recursive.md:3
|
|
msgid "Recursive data types or data types with dynamic sizes need to use a `Box`:"
|
|
msgstr "Tipos de dados recursivos ou tipos de dados com tamanhos dinâmicos precisam usar um `Box`:"
|
|
|
|
#: src/std/box-recursive.md:5 src/std/box-niche.md:3
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"enum List<T> {\n"
|
|
" Cons(T, Box<List<T>>),\n"
|
|
" Nil,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"enum List<T> {\n"
|
|
" Cons(T, Box<List<T>>),\n"
|
|
" Nil,\n"
|
|
"}"
|
|
|
|
#: src/std/box-recursive.md:12 src/std/box-niche.md:10
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let list: List<i32> = List::Cons(1, Box::new(List::Cons(2, Box::new(List::Nil))));\n"
|
|
" println!(\"{list:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/std/box-recursive.md:18
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - -. .- - - - - - - - - - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": list : : :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+------+ :\n"
|
|
": | Tag | Cons | : : .->| Tag | Cons | .->| Tag | Nil | :\n"
|
|
": | 0 | 1 | : : | | 0 | 2 | | | ////// | //// | :\n"
|
|
": | 1 | o-----+----+-----+-' | 1 | o------+-' | ////// | //// | :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+------+ :\n"
|
|
": : : :\n"
|
|
": : : :\n"
|
|
"`- - - - - - - - - - - - -' '- - - - - - - - - - - - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
"```bob\n"
|
|
" Pilha\n"
|
|
".- - - - - - - - - - - - -. .- - - - - - - - - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": Lista : : :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+ ------+ :\n"
|
|
": | Etiqueta | Contras | : : .->| Etiqueta | Contras | .->| Etiqueta | nada | :\n"
|
|
": | 0 | 1 | : : | | 0 | 2 | | | ////// | //// | :\n"
|
|
": | 1 | o-----+----+-----+-' | 1 | o------+-' | ////// | //// | :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+ ------+ :\n"
|
|
": : : :\n"
|
|
": : : :\n"
|
|
"`- - - - - - - - - - - - -' '- - - - - - - - - - - - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
|
|
#: src/std/box-recursive.md:33
|
|
msgid ""
|
|
"* If the `Box` was not used here and we attempted to embed a `List` directly into the `List`,\n"
|
|
"the compiler would not compute a fixed size of the struct in memory, it would look infinite.\n"
|
|
" \n"
|
|
"* `Box` solves this problem as it has the same size as a regular pointer and just points at the next\n"
|
|
"element of the `List` in the heap. "
|
|
msgstr ""
|
|
"Se a `Caixa` não foi usada aqui e tentamos incorporar uma `Lista` diretamente na `Lista`,\n"
|
|
"o compilador não calcularia um tamanho fixo da estrutura na memória, pareceria infinito.\n"
|
|
" \n"
|
|
"`Box` resolve esse problema, pois tem o mesmo tamanho de um ponteiro normal e apenas aponta para o próximo\n"
|
|
"elemento da `Lista` na pilha.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/std/box-recursive.md:41
|
|
msgid ""
|
|
"* Remove the `Box` in the List definition and show the compiler error. `Recursive with indirection` is a hint you might "
|
|
"want to use a Box or reference of some kind, instead of storing a value directly. \n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
|
|
#: src/std/box-niche.md:1
|
|
msgid "# Niche Optimization"
|
|
msgstr "# Otimização de Nicho"
|
|
|
|
#: src/std/box-niche.md:16
|
|
msgid ""
|
|
"A `Box` cannot be empty, so the pointer is always valid and non-`null`. This\n"
|
|
"allows the compiler to optimize the memory layout:"
|
|
msgstr ""
|
|
"Uma `Box` não pode estar vazia, então o ponteiro é sempre válido e não `nulo`. Esta\n"
|
|
"permite que o compilador otimize o layout da memória:"
|
|
|
|
#: src/std/box-niche.md:19
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - -. .- - - - - - - - - - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": list : : :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+------+ :\n"
|
|
": | 0 | 1 | : : .->| 0 | 2 | .->| ////// | //// | :\n"
|
|
": | \"1/Tag\"| o-----+----+-----+-' | \"1/Tag\"| o-----+-' | \"1/Tag\"| null | :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+------+ :\n"
|
|
": : : :\n"
|
|
": : : :\n"
|
|
"`- - - - - - - - - - - - -' '- - - - - - - - - - - - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
"```bob\n"
|
|
" Pilha\n"
|
|
".- - - - - - - - - - - - -. .- - - - - - - - - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": Lista : : :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+ ------+ :\n"
|
|
": | 0 | 1 | : : .->| 0 | 2 | .->| ////// | //// | :\n"
|
|
": | \"1/Etiqueta\"| o-----+----+-----+-' | \"1/Etiqueta\"| o-----+-' | \"1/Etiqueta\"| nulo | :\n"
|
|
": +--------+-------+ : : +--------+--------+ +--------+ ------+ :\n"
|
|
": : : :\n"
|
|
": : : :\n"
|
|
"`- - - - - - - - - - - - -' '- - - - - - - - - - - - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
|
|
#: src/std/rc.md:1
|
|
msgid "# `Rc`"
|
|
msgstr "#`Rc`"
|
|
|
|
#: src/std/rc.md:3
|
|
msgid ""
|
|
"[`Rc`][1] is a reference-counted shared pointer. Use this when you need to refer\n"
|
|
"to the same data from multiple places:"
|
|
msgstr ""
|
|
"[`Rc`][1] é um ponteiro compartilhado com contagem de referência. Use isso quando precisar consultar\n"
|
|
"aos mesmos dados de vários lugares:"
|
|
|
|
#: src/std/rc.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::rc::Rc;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::rc::Rc;"
|
|
|
|
#: src/std/rc.md:9
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut a = Rc::new(10);\n"
|
|
" let mut b = a.clone();"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut a = Rc::new(10);\n"
|
|
" let mut b = a.clone();"
|
|
|
|
#: src/std/rc.md:18
|
|
msgid ""
|
|
"* If you need to mutate the data inside an `Rc`, you will need to wrap the data in\n"
|
|
" a type such as [`Cell` or `RefCell`][2].\n"
|
|
"* See [`Arc`][3] if you are in a multi-threaded context.\n"
|
|
"* You can *downgrade* a shared pointer into a [`Weak`][4] pointer to create cycles\n"
|
|
" that will get dropped."
|
|
msgstr ""
|
|
"Se você precisar alterar os dados dentro de um `Rc`, precisará agrupar os dados em\n"
|
|
"um tipo como [`Cell` ou `RefCell`][2]. Veja [`Arc`][3] se você estiver em um multi-threaded\n"
|
|
"contexto."
|
|
|
|
#: src/std/rc.md:24
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/rc/struct.Rc.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/cell/index.html\n"
|
|
"[3]: ../concurrency/shared_state/arc.md\n"
|
|
"[4]: https://doc.rust-lang.org/std/rc/struct.Weak.html"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/rc/struct.Rc.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/cell/index.html\n"
|
|
"[3]: ../concurrency/shared_state/arc.md"
|
|
|
|
#: src/std/rc.md:31
|
|
msgid ""
|
|
"* Like C++'s `std::shared_ptr`.\n"
|
|
"* `clone` is cheap: creates a pointer to the same allocation and increases the reference count.\n"
|
|
"* `make_mut` actually clones the inner value if necessary (\"clone-on-write\") and returns a mutable reference.\n"
|
|
"* You can `downgrade()` a `Rc` into a *weakly reference-counted* object to\n"
|
|
" create cycles that will be dropped properly (likely in combination with\n"
|
|
" `RefCell`)."
|
|
msgstr ""
|
|
"* Como `std::shared_ptr` do C++.\n"
|
|
"* `clone` é barato: cria um ponteiro para a mesma alocação e aumenta a contagem de referência.\n"
|
|
"* `make_mut` realmente clona o valor interno se necessário (\"clone-on-write\") e retorna uma referência mutável."
|
|
|
|
#: src/std/rc.md:38
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::rc::{Rc, Weak};\n"
|
|
"use std::cell::RefCell;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::rc::{Rc, Weak};\n"
|
|
"use std::cell::RefCell;"
|
|
|
|
#: src/std/rc.md:42
|
|
msgid ""
|
|
"#[derive(Debug)]\n"
|
|
"struct Node {\n"
|
|
" value: i64,\n"
|
|
" parent: Option<Weak<RefCell<Node>>>,\n"
|
|
" children: Vec<Rc<RefCell<Node>>>,\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/std/rc.md:49
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut root = Rc::new(RefCell::new(Node {\n"
|
|
" value: 42,\n"
|
|
" parent: None,\n"
|
|
" children: vec![],\n"
|
|
" }));\n"
|
|
" let child = Rc::new(RefCell::new(Node {\n"
|
|
" value: 43,\n"
|
|
" children: vec![],\n"
|
|
" parent: Some(Rc::downgrade(&root))\n"
|
|
" }));\n"
|
|
" root.borrow_mut().children.push(child);"
|
|
msgstr ""
|
|
|
|
#: src/std/rc.md:62
|
|
#, fuzzy
|
|
msgid ""
|
|
" println!(\"graph: {root:#?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" println!(\"após: {a}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/modules.md:1
|
|
msgid "# Modules"
|
|
msgstr "# Módulos"
|
|
|
|
#: src/modules.md:3
|
|
msgid "We have seen how `impl` blocks let us namespace functions to a type."
|
|
msgstr "Vimos como os blocos `impl` nos permitem funções de namespace para um tipo."
|
|
|
|
#: src/modules.md:5
|
|
msgid "Similarly, `mod` lets us namespace types and functions:"
|
|
msgstr "Da mesma forma, `mod` nos permite tipos e funções de namespace:"
|
|
|
|
#: src/modules.md:7
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"mod foo {\n"
|
|
" pub fn do_something() {\n"
|
|
" println!(\"In the foo module\");\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"mod foo {\n"
|
|
" pub fn do_something() {\n"
|
|
" println!(\"No módulo foo\");\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/modules.md:14
|
|
#, fuzzy
|
|
msgid ""
|
|
"mod bar {\n"
|
|
" pub fn do_something() {\n"
|
|
" println!(\"In the bar module\");\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"barra de mods {\n"
|
|
" pub fn do_something() {\n"
|
|
" println!(\"No modulo da barra\");\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/modules.md:20
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" foo::do_something();\n"
|
|
" bar::do_something();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" foo::do_something();\n"
|
|
" bar::do_something();\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/modules.md:28
|
|
msgid ""
|
|
"* Packages provide functionality and include a `Cargo.toml` file that describes how to build a bundle of 1+ crates.\n"
|
|
"* Crates are a tree of modules, where a binary crate creates an executable and a library crate compiles to a library.\n"
|
|
"* Modules define organization, scope, and is the focus of this section."
|
|
msgstr ""
|
|
|
|
#: src/modules/visibility.md:1
|
|
msgid "# Visibility"
|
|
msgstr "# Visibilage"
|
|
|
|
#: src/modules/visibility.md:3
|
|
msgid "Modules are a privacy boundary:"
|
|
msgstr "Os módulos são um limite de privacage:"
|
|
|
|
#: src/modules/visibility.md:5
|
|
msgid ""
|
|
"* Module items are private by default (hides implementation details).\n"
|
|
"* Parent and sibling items are always visible.\n"
|
|
"* In other words, if an item is visible in module `foo`, it's visible in all the\n"
|
|
" descendants of `foo`."
|
|
msgstr ""
|
|
"* Os itens do módulo são privados por padrão (oculta detalhes de implementação).\n"
|
|
"* Os itens pai e irmão estão sempre visíveis."
|
|
|
|
#: src/modules/visibility.md:10
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"mod outer {\n"
|
|
" fn private() {\n"
|
|
" println!(\"outer::private\");\n"
|
|
" }"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"mod exterior {\n"
|
|
" fn privado() {\n"
|
|
" println!(\"externo::privado\");\n"
|
|
" }"
|
|
|
|
#: src/modules/visibility.md:16
|
|
msgid ""
|
|
" pub fn public() {\n"
|
|
" println!(\"outer::public\");\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn public() {\n"
|
|
" println!(\"externo::público\");\n"
|
|
" }"
|
|
|
|
#: src/modules/visibility.md:20
|
|
msgid ""
|
|
" mod inner {\n"
|
|
" fn private() {\n"
|
|
" println!(\"outer::inner::private\");\n"
|
|
" }"
|
|
msgstr ""
|
|
" mod interior {\n"
|
|
" fn privado() {\n"
|
|
" println!(\"externo::interno::privado\");\n"
|
|
" }"
|
|
|
|
#: src/modules/visibility.md:25
|
|
msgid ""
|
|
" pub fn public() {\n"
|
|
" println!(\"outer::inner::public\");\n"
|
|
" super::private();\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" pub fn public() {\n"
|
|
" println!(\"externo::interno::público\");\n"
|
|
" super::privado();\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/modules/visibility.md:32
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" outer::public();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" exterior::public();\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/modules/visibility.md:39
|
|
msgid "* Use the `pub` keyword to make mods public."
|
|
msgstr ""
|
|
|
|
#: src/modules/visibility.md:41
|
|
msgid "Additionally, there are advanced `pub(...)` specifiers to restrict the scope of public visibility."
|
|
msgstr ""
|
|
|
|
#: src/modules/visibility.md:43
|
|
msgid ""
|
|
"* See the [Rust Reference](https://doc.rust-lang.org/reference/visibility-and-privacy.html#pubin-path-pubcrate-pubsuper-and-"
|
|
"pubself)).\n"
|
|
"* Configuring `pub(crate)` visibility is a common pattern.\n"
|
|
"* Less commonly, you can give visibility to a specific path.\n"
|
|
"* In any case, visibility must be granted to an ancestor module (and all of its descendants)."
|
|
msgstr ""
|
|
|
|
#: src/modules/paths.md:1
|
|
msgid "# Paths"
|
|
msgstr "# caminhos"
|
|
|
|
#: src/modules/paths.md:3
|
|
msgid "Paths are resolved as follows:"
|
|
msgstr "Os caminhos são resolvidos da seguinte forma:"
|
|
|
|
#: src/modules/paths.md:5
|
|
msgid ""
|
|
"1. As a relative path:\n"
|
|
" * `foo` or `self::foo` refers to `foo` in the current module,\n"
|
|
" * `super::foo` refers to `foo` in the parent module."
|
|
msgstr ""
|
|
"1. Como caminho relativo:\n"
|
|
" * `foo` ou `self::foo` refere-se a `foo` no módulo atual,\n"
|
|
" * `super::foo` refere-se a `foo` no módulo pai."
|
|
|
|
#: src/modules/paths.md:9
|
|
msgid ""
|
|
"2. As an absolute path:\n"
|
|
" * `crate::foo` refers to `foo` in the root of the current crate,\n"
|
|
" * `bar::foo` refers to `foo` in the `bar` crate."
|
|
msgstr ""
|
|
"2. Como um caminho absoluto:\n"
|
|
" * `crate::foo` refere-se a `foo` na raiz da caixa atual,\n"
|
|
" * `bar::foo` refere-se a `foo` na caixa `bar`."
|
|
|
|
#: src/modules/filesystem.md:1
|
|
msgid "# Filesystem Hierarchy"
|
|
msgstr "# Hierarquia do sistema de arquivos"
|
|
|
|
#: src/modules/filesystem.md:3
|
|
msgid "The module content can be omitted:"
|
|
msgstr "O conteúdo do módulo pode ser omitido:"
|
|
|
|
#: src/modules/filesystem.md:5
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"mod garden;\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"jardim mod;\n"
|
|
"```"
|
|
|
|
#: src/modules/filesystem.md:9
|
|
msgid "The `garden` module content is found at:"
|
|
msgstr "O conteúdo do módulo `garden` é encontrado em:"
|
|
|
|
#: src/modules/filesystem.md:11
|
|
msgid ""
|
|
"* `src/garden.rs` (modern Rust 2018 style)\n"
|
|
"* `src/garden/mod.rs` (older Rust 2015 style)"
|
|
msgstr ""
|
|
"* `src/garden.rs` (estilo Rust 2018 moderno)\n"
|
|
"* `src/garden/mod.rs` (antigo estilo Rust 2015)"
|
|
|
|
#: src/modules/filesystem.md:14
|
|
msgid "Similarly, a `garden::vegetables` module can be found at:"
|
|
msgstr "Da mesma forma, um módulo `garden::vegetables` pode ser encontrado em:"
|
|
|
|
#: src/modules/filesystem.md:16
|
|
msgid ""
|
|
"* `src/garden/vegetables.rs` (modern Rust 2018 style)\n"
|
|
"* `src/garden/vegetables/mod.rs` (older Rust 2015 style)"
|
|
msgstr ""
|
|
"* `src/garden/vegetables.rs` (estilo Rust 2018 moderno)\n"
|
|
"* `src/garden/vegetables/mod.rs` (antigo estilo Rust 2015)"
|
|
|
|
#: src/modules/filesystem.md:19
|
|
msgid "The `crate` root is in:"
|
|
msgstr "A raiz `crate` está em:"
|
|
|
|
#: src/modules/filesystem.md:21
|
|
msgid ""
|
|
"* `src/lib.rs` (for a library crate)\n"
|
|
"* `src/main.rs` (for a binary crate)"
|
|
msgstr ""
|
|
"* `src/lib.rs` (para uma caixa de biblioteca)\n"
|
|
"* `src/main.rs` (para uma caixa binária)"
|
|
|
|
#: src/exercises/day-2/afternoon.md:1
|
|
msgid "# Day 2: Afternoon Exercises"
|
|
msgstr "# Dia 2: Exercícios da Tarde"
|
|
|
|
#: src/exercises/day-2/afternoon.md:3
|
|
msgid "The exercises for this afternoon will focus on strings and iterators."
|
|
msgstr "Os exercícios desta tarde se concentrarão em strings e iteradores."
|
|
|
|
#: src/exercises/day-2/luhn.md:1
|
|
msgid "# Luhn Algorithm"
|
|
msgstr "# Algoritmo de Luhn"
|
|
|
|
#: src/exercises/day-2/luhn.md:3
|
|
msgid ""
|
|
"The [Luhn algorithm](https://en.wikipedia.org/wiki/Luhn_algorithm) is used to\n"
|
|
"validate credit card numbers. The algorithm takes a string as input and does the\n"
|
|
"following to validate the credit card number:"
|
|
msgstr ""
|
|
"O [algoritmo Luhn](https://en.wikipedia.org/wiki/Luhn_algorithm) é usado para\n"
|
|
"validar números de cartão de crédito. O algoritmo recebe uma string como entrada e faz o\n"
|
|
"seguinte para validar o número do cartão de crédito:"
|
|
|
|
#: src/exercises/day-2/luhn.md:7
|
|
msgid "* Ignore all spaces. Reject number with less than two digits."
|
|
msgstr "* Ignore todos os espaços. Rejeitar número com menos de dois dígitos."
|
|
|
|
#: src/exercises/day-2/luhn.md:9
|
|
msgid ""
|
|
"* Moving from right to left, double every second digit: for the number `1234`,\n"
|
|
" we double `3` and `1`."
|
|
msgstr ""
|
|
"* Movendo-se da direita para a esquerda, dobre cada segundo dígito: para o número `1234`,\n"
|
|
" nós dobramos `3` e `1`."
|
|
|
|
#: src/exercises/day-2/luhn.md:12
|
|
msgid ""
|
|
"* After doubling a digit, sum the digits. So doubling `7` becomes `14` which\n"
|
|
" becomes `5`."
|
|
msgstr ""
|
|
"* Depois de dobrar um dígito, some os dígitos. Assim, duplicar `7` torna-se `14` que\n"
|
|
" torna-se '5'."
|
|
|
|
#: src/exercises/day-2/luhn.md:15
|
|
msgid "* Sum all the undoubled and doubled digits."
|
|
msgstr "* Some todos os dígitos duplicados e duplicados."
|
|
|
|
#: src/exercises/day-2/luhn.md:17
|
|
msgid "* The credit card number is valid if the sum ends with `0`."
|
|
msgstr "* O número do cartão de crédito é válido se a soma terminar em `0`."
|
|
|
|
#: src/exercises/day-2/luhn.md:19
|
|
msgid ""
|
|
"Copy the following code to <https://play.rust-lang.org/> and implement the\n"
|
|
"function:"
|
|
msgstr ""
|
|
"Copie o seguinte código para <https://play.rust-lang.org/> e implemente o\n"
|
|
"função:"
|
|
|
|
#: src/exercises/day-2/luhn.md:27
|
|
msgid ""
|
|
"pub fn luhn(cc_number: &str) -> bool {\n"
|
|
" unimplemented!()\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub fn luhn(cc_number: &str) -> bool {\n"
|
|
" unimplemented!()\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/luhn.md:31
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_non_digit_cc_number() {\n"
|
|
" assert!(!luhn(\"foo\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_non_digit_cc_number() {\n"
|
|
" assert!(!luhn(\"foo\"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/luhn.md:36 src/exercises/day-2/solutions-afternoon.md:64
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_empty_cc_number() {\n"
|
|
" assert!(!luhn(\"\"));\n"
|
|
" assert!(!luhn(\" \"));\n"
|
|
" assert!(!luhn(\" \"));\n"
|
|
" assert!(!luhn(\" \"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_empty_cc_number() {\n"
|
|
" assert!(!luhn(\"\"));\n"
|
|
" assert!(!luhn(\" \"));\n"
|
|
" assert!(!luhn(\" \"));\n"
|
|
" assert!(!luhn(\" \"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/luhn.md:44 src/exercises/day-2/solutions-afternoon.md:72
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_single_digit_cc_number() {\n"
|
|
" assert!(!luhn(\"0\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_single_digit_cc_number() {\n"
|
|
" assert!(!luhn(\"0\"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/luhn.md:49 src/exercises/day-2/solutions-afternoon.md:77
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_two_digit_cc_number() {\n"
|
|
" assert!(luhn(\" 0 0 \"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_two_digit_cc_number() {\n"
|
|
" assert!(luhn(\" 0 0 \"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/luhn.md:54 src/exercises/day-2/solutions-afternoon.md:82
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_valid_cc_number() {\n"
|
|
" assert!(luhn(\"4263 9826 4026 9299\"));\n"
|
|
" assert!(luhn(\"4539 3195 0343 6467\"));\n"
|
|
" assert!(luhn(\"7992 7398 713\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_valid_cc_number() {\n"
|
|
" assert!(luhn(\"4263 9826 4026 9299\"));\n"
|
|
" assert!(luhn(\"4539 3195 0343 6467\"));\n"
|
|
" assert!(luhn(\"7992 7398 713\"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/luhn.md:61
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_invalid_cc_number() {\n"
|
|
" assert!(!luhn(\"4223 9826 4026 9299\"));\n"
|
|
" assert!(!luhn(\"4539 3195 0343 6476\"));\n"
|
|
" assert!(!luhn(\"8273 1232 7352 0569\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_invalid_cc_number() {\n"
|
|
" assert!(!luhn(\"4223 9826 4026 9299\"));\n"
|
|
" assert!(!luhn(\"4539 3195 0343 6476\"));\n"
|
|
" assert!(!luhn(\"8273 1232 7352 0569\"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:1
|
|
msgid "# Strings and Iterators"
|
|
msgstr "# Strings e iteradores"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:3
|
|
msgid ""
|
|
"In this exercise, you are implementing a routing component of a web server. The\n"
|
|
"server is configured with a number of _path prefixes_ which are matched against\n"
|
|
"_request paths_. The path prefixes can contain a wildcard character which\n"
|
|
"matches a full segment. See the unit tests below."
|
|
msgstr ""
|
|
"Neste exercício, você está implementando um componente de roteamento de um servidor web. o\n"
|
|
"servidor está configurado com um número de _path prefixes_ que são comparados\n"
|
|
"_pedir caminhos_. Os prefixos de caminho podem conter um caractere curinga que\n"
|
|
"corresponde a um segmento completo. Veja os testes de unage abaixo."
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:8
|
|
msgid ""
|
|
"Copy the following code to <https://play.rust-lang.org/> and make the tests\n"
|
|
"pass. Try avoiding allocating a `Vec` for your intermediate results:"
|
|
msgstr ""
|
|
"Copie o seguinte código para <https://play.rust-lang.org/> e faça os testes\n"
|
|
"passar. Tente evitar alocar um `Vec` para seus resultados intermediários:"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:16
|
|
msgid ""
|
|
"pub fn prefix_matches(prefix: &str, request_path: &str) -> bool {\n"
|
|
" unimplemented!()\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub fn prefix_matches(prefix: &str, request_path: &str) -> bool {\n"
|
|
" unimplemented!()\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:20
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_matches_without_wildcard() {\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc-123\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc/books\"));"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_matches_without_wildcard() {\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc-123\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc/books\"));"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:26 src/exercises/day-2/solutions-afternoon.md:146
|
|
msgid ""
|
|
" assert!(!prefix_matches(\"/v1/publishers\", \"/v1\"));\n"
|
|
" assert!(!prefix_matches(\"/v1/publishers\", \"/v1/publishersBooks\"));\n"
|
|
" assert!(!prefix_matches(\"/v1/publishers\", \"/v1/parent/publishers\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
" assert!(!prefix_matches(\"/v1/publishers\", \"/v1\"));\n"
|
|
" assert!(!prefix_matches(\"/v1/publishers\", \"/v1/publishersBooks\"));\n"
|
|
" assert!(!prefix_matches(\"/v1/publishers\", \"/v1/parent/publishers\"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:31 src/exercises/day-2/solutions-afternoon.md:151
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_matches_with_wildcard() {\n"
|
|
" assert!(prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/books\"\n"
|
|
" ));\n"
|
|
" assert!(prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/bar/books\"\n"
|
|
" ));\n"
|
|
" assert!(prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/books/book1\"\n"
|
|
" ));"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_matches_with_wildcard() {\n"
|
|
" assert!(prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/books\"\n"
|
|
" ));\n"
|
|
" assert!(prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/bar/books\"\n"
|
|
" ));\n"
|
|
" assert!(prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/books/book1\"\n"
|
|
" ));"
|
|
|
|
#: src/exercises/day-2/strings-iterators.md:46
|
|
msgid ""
|
|
" assert!(!prefix_matches(\"/v1/publishers/*/books\", \"/v1/publishers\"));\n"
|
|
" assert!(!prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/booksByAuthor\"\n"
|
|
" ));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" assert!(!prefix_matches(\"/v1/publishers/*/books\", \"/v1/publishers\"));\n"
|
|
" assert!(!prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/booksByAuthor\"\n"
|
|
" ));\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/welcome-day-3.md:1
|
|
msgid "# Welcome to Day 3"
|
|
msgstr "# Bem-vindo ao Dia 3"
|
|
|
|
#: src/welcome-day-3.md:3
|
|
msgid "Today, we will cover some more advanced topics of Rust:"
|
|
msgstr "Hoje, abordaremos alguns tópicos mais avançados do Rust:"
|
|
|
|
#: src/welcome-day-3.md:5
|
|
msgid ""
|
|
"* Traits: deriving traits, default methods, and important standard library\n"
|
|
" traits."
|
|
msgstr ""
|
|
"* Características: características derivadas, métodos padrão e importante biblioteca padrão\n"
|
|
" características."
|
|
|
|
#: src/welcome-day-3.md:8
|
|
msgid ""
|
|
"* Generics: generic data types, generic methods, monomorphization, and trait\n"
|
|
" objects."
|
|
msgstr ""
|
|
"* Genéricos: tipos de dados genéricos, métodos genéricos, monomorfização e trait\n"
|
|
" objetos."
|
|
|
|
#: src/welcome-day-3.md:11
|
|
msgid "* Error handling: panics, `Result`, and the try operator `?`."
|
|
msgstr "* Tratamento de erros: panics, `Result` e o operador try `?`."
|
|
|
|
#: src/welcome-day-3.md:13
|
|
msgid "* Testing: unit tests, documentation tests, and integration tests."
|
|
msgstr "* Testes: tests de unage, testes de documentação e testes de integração."
|
|
|
|
#: src/welcome-day-3.md:15
|
|
msgid ""
|
|
"* Unsafe Rust: raw pointers, static variables, unsafe functions, and extern\n"
|
|
" functions."
|
|
msgstr ""
|
|
"* Rust inseguro: ponteiros brutos, variáveis estáticas, funções inseguras e funções externas\n"
|
|
" funções."
|
|
|
|
#: src/traits.md:1
|
|
msgid "# Traits"
|
|
msgstr "# Características"
|
|
|
|
#: src/traits.md:3
|
|
msgid "Rust lets you abstract over types with traits. They're similar to interfaces:"
|
|
msgstr "Rust permite abstrair tipos com características. Eles são semelhantes às interfaces:"
|
|
|
|
#: src/traits.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"trait Greet {\n"
|
|
" fn say_hello(&self);\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"trait Greet {\n"
|
|
" fn say_hello(&self);\n"
|
|
"}"
|
|
|
|
#: src/traits.md:10
|
|
#, fuzzy
|
|
msgid ""
|
|
"struct Dog {\n"
|
|
" name: String,\n"
|
|
"}"
|
|
msgstr ""
|
|
"struct Cachorro {\n"
|
|
" name: String,\n"
|
|
"}"
|
|
|
|
#: src/traits.md:14
|
|
#, fuzzy
|
|
msgid "struct Cat; // No name, cats won't respond to it anyway."
|
|
msgstr "Cat estrutura; // Sem name, os gatos não vão responder de qualquer maneira."
|
|
|
|
#: src/traits.md:16
|
|
msgid ""
|
|
"impl Greet for Dog {\n"
|
|
" fn say_hello(&self) {\n"
|
|
" println!(\"Wuf, my name is {}!\", self.name);\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Greet for Dog {\n"
|
|
" fn say_hello(&self) {\n"
|
|
" println!(\"Wuf, meu name é {}!\", self.name);\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/traits.md:22
|
|
msgid ""
|
|
"impl Greet for Cat {\n"
|
|
" fn say_hello(&self) {\n"
|
|
" println!(\"Miau!\");\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Greet for Cat {\n"
|
|
" fn say_hello(&self) {\n"
|
|
" println!(\"Miau!\");\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/traits.md:28
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let pets: Vec<Box<dyn Greet>> = vec![\n"
|
|
" Box::new(Dog { name: String::from(\"Fido\") }),\n"
|
|
" Box::new(Cat),\n"
|
|
" ];\n"
|
|
" for pet in pets {\n"
|
|
" pet.say_hello();\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let pets: Vec<Box<dyn Greet>> = vec![\n"
|
|
" Box::new(Dog { name: String::from(\"Fido\") }),\n"
|
|
" Box::new(Cat),\n"
|
|
" ];\n"
|
|
" for pet in pets {\n"
|
|
" pet.say_hello();\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/traits.md:41
|
|
msgid ""
|
|
"* Traits may specify pre-implemented (default) methods and methods that users are required to implement themselves. Methods "
|
|
"with default implementations can rely on required methods.\n"
|
|
"* Types that implement a given trait may be of different sizes. This makes it impossible to have things like `Vec<Greet>` "
|
|
"in the example above.\n"
|
|
"* `dyn Greet` is a way to tell the compiler about a dynamically sized type that implements `Greet`.\n"
|
|
"* In the example, `pets` holds Fat Pointers to objects that implement `Greet`. The Fat Pointer consists of two components, "
|
|
"a pointer to the actual object and a pointer to the virtual method table for the `Greet` implementation of that particular "
|
|
"object."
|
|
msgstr ""
|
|
"* Traits podem especificar métodos pré-implementados (padrão) e métodos que os usuários devem implementar por conta "
|
|
"própria. Os métodos com implementações padrão podem contar com os métodos necessários.\n"
|
|
"* Os tipos que implementam uma determinada característica podem ser de tamanhos diferentes. Isso torna impossível ter "
|
|
"coisas como `Vec<Greet>` no exemplo acima.\n"
|
|
"* `dyn Greet` é uma maneira de dizer ao compilador sobre um tipo de tamanho dinâmico que implementa `Greet`.\n"
|
|
"* No exemplo, `pets` mantém Fat Pointers para objetos que implementam `Greet`. O Fat Pointer consiste em dois componentes, "
|
|
"um ponteiro para o objeto real e um ponteiro para a tabela de métodos virtuais para a implementação `Greet` desse objeto em "
|
|
"particular."
|
|
|
|
#: src/traits.md:46
|
|
msgid ""
|
|
"Compare these outputs in the above example:\n"
|
|
msgstr ""
|
|
"Compare essas saídas no exemplo acima:\n"
|
|
|
|
#: src/traits/deriving-traits.md:1
|
|
msgid "# Deriving Traits"
|
|
msgstr "# traits derivados"
|
|
|
|
#: src/traits/deriving-traits.md:3
|
|
msgid "You can let the compiler derive a number of traits:"
|
|
msgstr "Você pode deixar o compilador derivar uma série de características:"
|
|
|
|
#: src/traits/deriving-traits.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug, Clone, PartialEq, Eq, Default)]\n"
|
|
"struct Player {\n"
|
|
" name: String,\n"
|
|
" strength: u8,\n"
|
|
" hit_points: u8,\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/deriving-traits.md:13
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p1 = Player::default();\n"
|
|
" let p2 = p1.clone();\n"
|
|
" println!(\"Is {:?}\\nequal to {:?}?\\nThe answer is {}!\", &p1, &p2,\n"
|
|
" if p1 == p2 { \"yes\" } else { \"no\" });\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p1 = Player::default();\n"
|
|
" let p2 = p1.clone();\n"
|
|
" println!(\"É {:?}\\negual a {:?}?\\nA resposta é {}!\", &p1, &p2,\n"
|
|
" if p1 == p2 { \"sim\" } else { \"não\" });\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/traits/default-methods.md:1
|
|
msgid "# Default Methods"
|
|
msgstr "# Métodos Padrão"
|
|
|
|
#: src/traits/default-methods.md:3
|
|
msgid "Traits can implement behavior in terms of other trait methods:"
|
|
msgstr "As características podem implementar o comportamento em termos de outros métodos de característica:"
|
|
|
|
#: src/traits/default-methods.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"trait Equals {\n"
|
|
" fn equal(&self, other: &Self) -> bool;\n"
|
|
" fn not_equal(&self, other: &Self) -> bool {\n"
|
|
" !self.equal(other)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"trait Equals {\n"
|
|
" fn equal(&self, other: &Self) -> bool;\n"
|
|
" fn not_equal(&self, other: &Self) -> bool {\n"
|
|
" !self.equal(other)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/traits/default-methods.md:13
|
|
msgid ""
|
|
"#[derive(Debug)]\n"
|
|
"struct Centimeter(i16);"
|
|
msgstr ""
|
|
"#[derive(Debug)]\n"
|
|
"struct Centimeter(i16);"
|
|
|
|
#: src/traits/default-methods.md:16
|
|
msgid ""
|
|
"impl Equals for Centimeter {\n"
|
|
" fn equal(&self, other: &Centimeter) -> bool {\n"
|
|
" self.0 == other.0\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Equals for Centimeter {\n"
|
|
" fn equal(&self, other: &Centimeter) -> bool {\n"
|
|
" self.0 == other.0\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/traits/default-methods.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let a = Centimeter(10);\n"
|
|
" let b = Centimeter(20);\n"
|
|
" println!(\"{a:?} equals {b:?}: {}\", a.equal(&b));\n"
|
|
" println!(\"{a:?} not_equals {b:?}: {}\", a.not_equal(&b));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/traits/important-traits.md:1
|
|
msgid "# Important Traits"
|
|
msgstr "# traits importantes"
|
|
|
|
#: src/traits/important-traits.md:3
|
|
msgid "We will now look at some of the most common traits of the Rust standard library:"
|
|
msgstr "Veremos agora algumas das características mais comuns da biblioteca padrão do Rust:"
|
|
|
|
#: src/traits/important-traits.md:5
|
|
msgid ""
|
|
"* [`Iterator`][1] and [`IntoIterator`][2] used in `for` loops,\n"
|
|
"* [`From`][3] and [`Into`][4] used to convert values,\n"
|
|
"* [`Read`][5] and [`Write`][6] used for IO,\n"
|
|
"* [`Add`][7], [`Mul`][8], ... used for operator overloading, and\n"
|
|
"* [`Drop`][9] used for defining destructors.\n"
|
|
"* [`Default`][10] used to construct a default instance of a type."
|
|
msgstr ""
|
|
"* [`Iterator`][1] and [`IntoIterator`][2] used in `for` loops,\n"
|
|
"* [`From`][3] and [`Into`][4] used to convert values,\n"
|
|
"* [`Read`][5] and [`Write`][6] used for IO,\n"
|
|
"* [`Add`][7], [`Mul`][8], ... used for operator overloading, and\n"
|
|
"* [`Drop`][9] used for defining destructors.\n"
|
|
"* [`Default`][10] used to construct a default instance of a type."
|
|
|
|
#: src/traits/important-traits.md:12
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/iter/trait.Iterator.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/iter/trait.IntoIterator.html\n"
|
|
"[3]: https://doc.rust-lang.org/std/convert/trait.From.html\n"
|
|
"[4]: https://doc.rust-lang.org/std/convert/trait.Into.html\n"
|
|
"[5]: https://doc.rust-lang.org/std/io/trait.Read.html\n"
|
|
"[6]: https://doc.rust-lang.org/std/io/trait.Write.html\n"
|
|
"[7]: https://doc.rust-lang.org/std/ops/trait.Add.html\n"
|
|
"[8]: https://doc.rust-lang.org/std/ops/trait.Mul.html\n"
|
|
"[9]: https://doc.rust-lang.org/std/ops/trait.Drop.html\n"
|
|
"[10]: https://doc.rust-lang.org/std/default/trait.Default.html"
|
|
msgstr ""
|
|
|
|
#: src/traits/iterator.md:1
|
|
msgid "# Iterators"
|
|
msgstr "# Iteradores"
|
|
|
|
#: src/traits/iterator.md:3
|
|
msgid "You can implement the [`Iterator`][1] trait on your own types:"
|
|
msgstr "Você pode implementar o trait `Iterator` em seus próprios tipos:"
|
|
|
|
#: src/traits/iterator.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"struct Fibonacci {\n"
|
|
" curr: u32,\n"
|
|
" next: u32,\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/iterator.md:11
|
|
msgid ""
|
|
"impl Iterator for Fibonacci {\n"
|
|
" type Item = u32;"
|
|
msgstr ""
|
|
|
|
#: src/traits/iterator.md:14
|
|
msgid ""
|
|
" fn next(&mut self) -> Option<Self::Item> {\n"
|
|
" let new_next = self.curr + self.next;\n"
|
|
" self.curr = self.next;\n"
|
|
" self.next = new_next;\n"
|
|
" Some(self.curr)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/iterator.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let fib = Fibonacci { curr: 0, next: 1 };\n"
|
|
" for (i, n) in fib.enumerate().take(5) {\n"
|
|
" println!(\"fib({i}): {n}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/traits/iterator.md:32
|
|
msgid ""
|
|
"* `IntoIterator` is the trait that makes for loops work. It is implemented by collection types such as\n"
|
|
" `Vec<T>` and references to them such as `&Vec<T>` and `&[T]`. Ranges also implement it.\n"
|
|
"* The `Iterator` trait implements many common functional programming operations over collections \n"
|
|
" (e.g. `map`, `filter`, `reduce`, etc). This is the trait where you can find all the documentation\n"
|
|
" about them. In Rust these functions should produce the code as efficient as equivalent imperative\n"
|
|
" implementations.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* `IntoIterator` é o recurso que faz com que os loops funcionem. É implementado por tipos de coleção, como\n"
|
|
" `Vec<T>` e referências a eles, como `&Vec<T>` e `&[T]`. Os intervalos também o implementam.\n"
|
|
"* O trait `Iterator` implementa muitas operações de programação funcional comuns sobre coleções\n"
|
|
" (por exemplo, `mapa`, `filtro`, `redução`, etc). Este é o trait onde você pode encontrar toda a documentação\n"
|
|
" sobre eles. Em Rust, essas funções devem produzir o código tão eficiente quanto o imperativo equivalente\n"
|
|
" implementações.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/traits/from-iterator.md:1
|
|
msgid "# FromIterator"
|
|
msgstr "# FromIterator"
|
|
|
|
#: src/traits/from-iterator.md:3
|
|
msgid "[`FromIterator`][1] lets you build a collection from an [`Iterator`][2]."
|
|
msgstr "`FromIterator` permite construir uma coleção a partir de um `Iterator`."
|
|
|
|
#: src/traits/from-iterator.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let primes = vec![2, 3, 5, 7];\n"
|
|
" let prime_squares = primes\n"
|
|
" .into_iter()\n"
|
|
" .map(|prime| prime * prime)\n"
|
|
" .collect::<Vec<_>>();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/traits/from-iterator.md:17
|
|
msgid ""
|
|
"`Iterator` implements\n"
|
|
"`fn collect<B>(self) -> B\n"
|
|
"where\n"
|
|
" B: FromIterator<Self::Item>,\n"
|
|
" Self: Sized`"
|
|
msgstr ""
|
|
|
|
#: src/traits/from-iterator.md:23
|
|
msgid ""
|
|
"There are also implementations which let you do cool things like convert an\n"
|
|
"`Iterator<Item = Result<V, E>>` into a `Result<Vec<V>, E>`."
|
|
msgstr ""
|
|
"Também existem implementações que permitem fazer coisas legais como converter um\n"
|
|
"`Iterator<Item = Result<V, E>>` em um `Result<Vec<V>, E>`."
|
|
|
|
#: src/traits/from-into.md:1
|
|
msgid "# `From` and `Into`"
|
|
msgstr "# `De` e `Into`"
|
|
|
|
#: src/traits/from-into.md:3
|
|
msgid "Types implement [`From`][1] and [`Into`][2] to facilitate type conversions:"
|
|
msgstr "Os tipos implementam `From` e `Into` para facilitar as conversões de tipo:"
|
|
|
|
#: src/traits/from-into.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let s = String::from(\"hello\");\n"
|
|
" let addr = std::net::Ipv4Addr::from([127, 0, 0, 1]);\n"
|
|
" let one = i16::from(true);\n"
|
|
" let bigger = i32::from(123i16);\n"
|
|
" println!(\"{s}, {addr}, {one}, {bigger}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/traits/from-into.md:15
|
|
#, fuzzy
|
|
msgid "[`Into`][2] is automatically implemented when [`From`][1] is implemented:"
|
|
msgstr "`Into` é implementado automaticamente quando `From` é implementado:"
|
|
|
|
#: src/traits/from-into.md:17
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let s: String = \"hello\".into();\n"
|
|
" let addr: std::net::Ipv4Addr = [127, 0, 0, 1].into();\n"
|
|
" let one: i16 = true.into();\n"
|
|
" let bigger: i32 = 123i16.into();\n"
|
|
" println!(\"{s}, {addr}, {one}, {bigger}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/traits/from-into.md:27
|
|
msgid ""
|
|
"* That's why it is common to only implement `From`, as your type will get `Into` implementation too.\n"
|
|
"* When declaring a function argument input type like \"anything that can be converted into a `String`\", the rule is "
|
|
"opposite, you should use `Into`.\n"
|
|
" Your function will accept types that implement `From` and those that _only_ implement `Into`.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* É por isso que é comum implementar apenas `From`, já que seu tipo também receberá implementação `Into`.\n"
|
|
"* Ao declarar um tipo de entrada de argumento de função como \"qualquer coisa que possa ser convertida em `String`\", a "
|
|
"regra é oposta, você deve usar `Into`.\n"
|
|
" Sua função aceitará tipos que implementam `From` e aqueles que _apenas_ implementam `Into`.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/traits/read-write.md:1
|
|
msgid "# `Read` and `Write`"
|
|
msgstr "# `Read` e `Write`"
|
|
|
|
#: src/traits/read-write.md:3
|
|
msgid "Using [`Read`][1] and [`BufRead`][2], you can abstract over `u8` sources:"
|
|
msgstr "Usando `Read` e `BufRead`, você pode abstrair as fontes `u8`:"
|
|
|
|
#: src/traits/read-write.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::io::{BufRead, BufReader, Read, Result};"
|
|
msgstr ""
|
|
|
|
#: src/traits/read-write.md:8
|
|
msgid ""
|
|
"fn count_lines<R: Read>(reader: R) -> usize {\n"
|
|
" let buf_reader = BufReader::new(reader);\n"
|
|
" buf_reader.lines().count()\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/read-write.md:13
|
|
msgid ""
|
|
"fn main() -> Result<()> {\n"
|
|
" let slice: &[u8] = b\"foo\\nbar\\nbaz\\n\";\n"
|
|
" println!(\"lines in slice: {}\", count_lines(slice));"
|
|
msgstr ""
|
|
"fn main() -> Result<()> {\n"
|
|
" let slice: &[u8] = b\"foo\\nbar\\nbaz\\n\";\n"
|
|
" println!(\"linhas na slice: {}\", count_lines(slice));"
|
|
|
|
#: src/traits/read-write.md:17
|
|
msgid ""
|
|
" let file = std::fs::File::open(std::env::current_exe()?)?;\n"
|
|
" println!(\"lines in file: {}\", count_lines(file));\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" let file = std::fs::File::open(std::env::current_exe()?)?;\n"
|
|
" println!(\"linhas no arquivo: {}\", count_lines(file));\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/traits/read-write.md:23
|
|
#, fuzzy
|
|
msgid "Similarly, [`Write`][3] lets you abstract over `u8` sinks:"
|
|
msgstr "Da mesma forma, `Write` permite abstrair sobre coletores `u8`:"
|
|
|
|
#: src/traits/read-write.md:25
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::io::{Result, Write};"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"use std::io::{Result, Write};"
|
|
|
|
#: src/traits/read-write.md:28
|
|
msgid ""
|
|
"fn log<W: Write>(writer: &mut W, msg: &str) -> Result<()> {\n"
|
|
" writer.write_all(msg.as_bytes())?;\n"
|
|
" writer.write_all(\"\\n\".as_bytes())\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/read-write.md:33
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() -> Result<()> {\n"
|
|
" let mut buffer = Vec::new();\n"
|
|
" log(&mut buffer, \"Hello\")?;\n"
|
|
" log(&mut buffer, \"World\")?;\n"
|
|
" println!(\"Logged: {:?}\", buffer);\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() -> Result<()> {\n"
|
|
" let mut buffer = Vec::new();\n"
|
|
" log(&mut buffer, \"Olá\"?);\n"
|
|
" log(&mut buffer, \"Mundo\"?);\n"
|
|
" println!(\"Logado: {:?}\", buffer);\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/traits/read-write.md:42
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/io/trait.Read.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/io/trait.BufRead.html\n"
|
|
"[3]: https://doc.rust-lang.org/std/io/trait.Write.html"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/io/trait.Read.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/io/trait.BufRead.html\n"
|
|
"[3]: https://doc.rust-lang.org/std/io/trait.Write.html"
|
|
|
|
#: src/traits/operators.md:1
|
|
msgid "# `Add`, `Mul`, ..."
|
|
msgstr "# `Adicionar`, `Mul`, ..."
|
|
|
|
#: src/traits/operators.md:3
|
|
msgid "Operator overloading is implemented via traits in [`std::ops`][1]:"
|
|
msgstr "A sobrecargo do operador é implementada por meio de características em `std::ops`:"
|
|
|
|
#: src/traits/operators.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug, Copy, Clone)]\n"
|
|
"struct Point { x: i32, y: i32 }"
|
|
msgstr ""
|
|
|
|
#: src/traits/operators.md:9 src/exercises/day-2/solutions-morning.md:46
|
|
msgid ""
|
|
"impl std::ops::Add for Point {\n"
|
|
" type Output = Self;"
|
|
msgstr ""
|
|
|
|
#: src/traits/operators.md:12
|
|
msgid ""
|
|
" fn add(self, other: Self) -> Self {\n"
|
|
" Self {x: self.x + other.x, y: self.y + other.y}\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/operators.md:17
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p1 = Point { x: 10, y: 20 };\n"
|
|
" let p2 = Point { x: 100, y: 200 };\n"
|
|
" println!(\"{:?} + {:?} = {:?}\", p1, p2, p1 + p2);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p1 = Point { x: 10, y: 20 };\n"
|
|
" let p2 = Point { x: 100, y: 200 };\n"
|
|
" println!(\"{:?} + {:?} = {:?}\", p1, p2, p1 + p2);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/traits/operators.md:26 src/traits/drop.md:34
|
|
msgid "Discussion points:"
|
|
msgstr "Points de discussão:"
|
|
|
|
#: src/traits/operators.md:28
|
|
msgid ""
|
|
"* You could implement `Add` for `&Point`. In which situations is that useful? \n"
|
|
" * Answer: `Add:add` consumes `self`. If type `T` for which you are\n"
|
|
" overloading the operator is not `Copy`, you should consider overloading\n"
|
|
" the operator for `&T` as well. This avoids unnecessary cloning on the\n"
|
|
" call site.\n"
|
|
"* Why is `Output` an associated type? Could it be made a type parameter?\n"
|
|
" * Short answer: Type parameters are controlled by the caller, but\n"
|
|
" associated types (like `Output`) are controlled by the implementor of a\n"
|
|
" trait."
|
|
msgstr ""
|
|
"* Você pode implementar `Add` para `&Point`. Em quais situações isso é útil?\n"
|
|
" * Resposta: `Add:add` consome `self`. Se digitar `T` para o qual você está\n"
|
|
" sobrecarregar o operador não é `Copy`, você deve considerar sobrecarregar\n"
|
|
" o operador para `&T` também. Isso evita a clonagem desnecessária no\n"
|
|
" local de chamada.\n"
|
|
"* Por que `Output` é um tipo associado? Poderia ser feito um parâmetro de tipo?\n"
|
|
" * Resposta curta: os parâmetros de tipo são controlados pelo chamador, mas\n"
|
|
" tipos associados (como `Output`) são controlados pelo implementador de um\n"
|
|
" característica."
|
|
|
|
#: src/traits/operators.md:40
|
|
msgid "[1]: https://doc.rust-lang.org/std/ops/index.html"
|
|
msgstr ""
|
|
|
|
#: src/traits/drop.md:1
|
|
msgid "# The `Drop` Trait"
|
|
msgstr "# A característica 'Drop'"
|
|
|
|
#: src/traits/drop.md:3
|
|
msgid "Values which implement [`Drop`][1] can specify code to run when they go out of scope:"
|
|
msgstr "Valores que implementam `Drop` podem especificar o código a ser executado quando saem do escopo:"
|
|
|
|
#: src/traits/drop.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"struct Droppable {\n"
|
|
" name: &'static str,\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/drop.md:10
|
|
msgid ""
|
|
"impl Drop for Droppable {\n"
|
|
" fn drop(&mut self) {\n"
|
|
" println!(\"Dropping {}\", self.name);\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/drop.md:16
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let a = Droppable { name: \"a\" };\n"
|
|
" {\n"
|
|
" let b = Droppable { name: \"b\" };\n"
|
|
" {\n"
|
|
" let c = Droppable { name: \"c\" };\n"
|
|
" let d = Droppable { name: \"d\" };\n"
|
|
" println!(\"Exiting block B\");\n"
|
|
" }\n"
|
|
" println!(\"Exiting block A\");\n"
|
|
" }\n"
|
|
" drop(a);\n"
|
|
" println!(\"Exiting main\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let a = Droppable { name: \"a\" };\n"
|
|
" {\n"
|
|
" let b = Droppable { name: \"b\" };\n"
|
|
" {\n"
|
|
" let c = Droppable { name: \"c\" };\n"
|
|
" let d = Droppable { name: \"d\" };\n"
|
|
" println!(\"Saindo do bloco B\");\n"
|
|
" }\n"
|
|
" println!(\"Saindo do bloco A\");\n"
|
|
" }\n"
|
|
" soltar(a);\n"
|
|
" println!(\"Saindo do main\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/traits/drop.md:36
|
|
msgid ""
|
|
"* Why does not `Drop::drop` take `self`?\n"
|
|
" * Short-answer: If it did, `std::mem::drop` would be called at the end of\n"
|
|
" the block, resulting in another call to `Drop::drop`, and a stack\n"
|
|
" overflow!\n"
|
|
"* Try replacing `drop(a)` with `a.drop()`."
|
|
msgstr ""
|
|
"* Por que `Drop::drop` não leva `self`?\n"
|
|
" * Resposta curta: Se tivesse, `std::mem::drop` seria chamado no final de\n"
|
|
" o bloco, resultando em outra chamada para `Drop::drop`, e uma pilha\n"
|
|
" transbordar!\n"
|
|
"* Tente substituir `drop(a)` por `a.drop()`."
|
|
|
|
#: src/traits/drop.md:44
|
|
msgid "[1]: https://doc.rust-lang.org/std/ops/trait.Drop.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/ops/trait.Drop.html"
|
|
|
|
#: src/traits/default.md:1
|
|
msgid "# The `Default` Trait"
|
|
msgstr "# A característica 'Drop'"
|
|
|
|
#: src/traits/default.md:3
|
|
msgid "[`Default`][1] trait provides a default implementation of a trait."
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug, Default)]\n"
|
|
"struct Derived {\n"
|
|
" x: u32,\n"
|
|
" y: String,\n"
|
|
" z: Implemented,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug, Default)]\n"
|
|
"struct Derived {\n"
|
|
" x: u32,\n"
|
|
" y: String,\n"
|
|
" z: Implemented,\n"
|
|
"}"
|
|
|
|
#: src/traits/default.md:13
|
|
msgid ""
|
|
"#[derive(Debug)]\n"
|
|
"struct Implemented(String);"
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:16
|
|
msgid ""
|
|
"impl Default for Implemented {\n"
|
|
" fn default() -> Self {\n"
|
|
" Self(\"John Smith\".into())\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let default_struct: Derived = Default::default();\n"
|
|
" println!(\"{default_struct:#?}\");"
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:26
|
|
msgid ""
|
|
" let almost_default_struct = Derived {\n"
|
|
" y: \"Y is set!\".into(),\n"
|
|
" ..Default::default()\n"
|
|
" };\n"
|
|
" println!(\"{almost_default_struct:#?}\");"
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:32
|
|
msgid ""
|
|
" let nothing: Option<Derived> = None;\n"
|
|
" println!(\"{:#?}\", nothing.unwrap_or_default());\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:40
|
|
msgid ""
|
|
" * It can be implemented directly or it can be derived via `#[derive(Default)]`.\n"
|
|
" * Derived implementation will produce an instance where all fields are set to their default values.\n"
|
|
" * This means all types in the struct must implement `Default` too.\n"
|
|
" * Standard Rust types often implement `Default` with reasonable values (e.g. `0`, `\"\"`, etc).\n"
|
|
" * The partial struct copy works nicely with default.\n"
|
|
" * Rust standard library is aware that types can implement `Default` and provides convenience methods that use it."
|
|
msgstr ""
|
|
|
|
#: src/traits/default.md:49
|
|
msgid "[1]: https://doc.rust-lang.org/std/default/trait.Default.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/marker/trait.Send.html"
|
|
|
|
#: src/generics.md:1
|
|
msgid "# Generics"
|
|
msgstr "# Genéricos"
|
|
|
|
#: src/generics.md:3
|
|
msgid ""
|
|
"Rust support generics, which lets you abstract an algorithm (such as sorting)\n"
|
|
"over the types used in the algorithm."
|
|
msgstr ""
|
|
"Rust oferece suporte a genéricos, que permitem abstrair um algoritmo (como classificação)\n"
|
|
"sobre os tipos usados no algoritmo."
|
|
|
|
#: src/generics/data-types.md:1
|
|
msgid "# Generic Data Types"
|
|
msgstr "# Tipos de dados genéricos"
|
|
|
|
#: src/generics/data-types.md:3
|
|
msgid "You can use generics to abstract over the concrete field type:"
|
|
msgstr "Você pode usar genéricos para abstrair sobre o tipo de campo concreto:"
|
|
|
|
#: src/generics/data-types.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Point<T> {\n"
|
|
" x: T,\n"
|
|
" y: T,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Point<T> {\n"
|
|
" x: T,\n"
|
|
" y: T,\n"
|
|
"}"
|
|
|
|
#: src/generics/data-types.md:12
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let integer = Point { x: 5, y: 10 };\n"
|
|
" let float = Point { x: 1.0, y: 4.0 };\n"
|
|
" println!(\"{integer:?} and {float:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let integer = Point { x: 5, y: 10 };\n"
|
|
" let float = Point { x: 1.0, y: 4.0 };\n"
|
|
" println!(\"{integer:?} e {float:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/methods.md:1
|
|
msgid "# Generic Methods"
|
|
msgstr "# Métodos Genéricos"
|
|
|
|
#: src/generics/methods.md:3
|
|
msgid "You can declare a generic type on your `impl` block:"
|
|
msgstr "Você pode declarar um tipo genérico em seu bloco `impl`:"
|
|
|
|
#: src/generics/methods.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Point<T>(T, T);"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"#[derive(Debug)]\n"
|
|
"struct Point<T>(T, T);"
|
|
|
|
#: src/generics/methods.md:9
|
|
msgid ""
|
|
"impl<T> Point<T> {\n"
|
|
" fn x(&self) -> &T {\n"
|
|
" &self.0 // + 10\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl<T> Point<T> {\n"
|
|
" fn x(&self) -> &T {\n"
|
|
" &self.0 // + 10\n"
|
|
" }"
|
|
|
|
#: src/generics/methods.md:14
|
|
msgid ""
|
|
" // fn set_x(&mut self, x: T)\n"
|
|
"}"
|
|
msgstr ""
|
|
" // fn set_x(&mut self, x: T)\n"
|
|
"}"
|
|
|
|
#: src/generics/methods.md:17
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let p = Point(5, 10);\n"
|
|
" println!(\"p.x = {}\", p.x());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let p = Point(5, 10);\n"
|
|
" println!(\"p.x = {}\", p.x());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/methods.md:25
|
|
msgid ""
|
|
"* *Q:* Why `T` is specified twice in `impl<T> Point<T> {}`? Isn't that redundant?\n"
|
|
" * This is because it is a generic implementation section for generic type. They are independently generic.\n"
|
|
" * It means these methods are defined for any `T`.\n"
|
|
" * It is possible to write `impl Point<u32> { .. }`. \n"
|
|
" * `Point` is still generic and you can use `Point<f64>`, but methods in this block will only be available for "
|
|
"`Point<u32>`."
|
|
msgstr ""
|
|
"* *P:* Por que `T` é especificado duas vezes em `impl<T> Point<T> {}`? Isso não é redundante?\n"
|
|
" * Isso ocorre porque é uma seção de implementação genérica para tipo genérico. Eles são genéricos de forma "
|
|
"independente.\n"
|
|
" * Significa que esses métodos são definidos para qualquer `T`.\n"
|
|
" * É possível escrever `Impl Point<u32> { .. }`.\n"
|
|
" * `Point` ainda é genérico e você pode usar `Point<f64>`, mas os métodos neste bloco só estarão disponíveis para "
|
|
"`Point<u32>`."
|
|
|
|
#: src/generics/trait-bounds.md:1
|
|
msgid "# Trait Bounds"
|
|
msgstr "# Limites de traits"
|
|
|
|
#: src/generics/trait-bounds.md:3
|
|
msgid ""
|
|
"When working with generics, you often want to require the types to implement\n"
|
|
"some trait, so that you can call this trait's methods."
|
|
msgstr ""
|
|
"Ao trabalhar com genéricos, muitas vezes você deseja limitar os tipos. Você consegue fazer isso\n"
|
|
"com `T:Trait` ou `impl Trait`:"
|
|
|
|
#: src/generics/trait-bounds.md:6
|
|
msgid "You can do this with `T: Trait` or `impl Trait`:"
|
|
msgstr ""
|
|
|
|
#: src/generics/trait-bounds.md:8
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn duplicate<T: Clone>(a: T) -> (T, T) {\n"
|
|
" (a.clone(), a.clone())\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn duplicado<T: Clone>(a: T) -> (T, T) {\n"
|
|
" (a.clone(), a.clone())\n"
|
|
"}"
|
|
|
|
#~ #: src/generics/trait-bounds.md:13
|
|
#~ msgid ""
|
|
#~ "// Syntactic sugar for:\n"
|
|
#~ "// fn add_42_millions<T: Into<i32>>(x: T) -> i32 {\n"
|
|
#~ "fn add_42_millions(x: impl Into<i32>) -> i32 {\n"
|
|
#~ " x.into() + 42_000_000\n"
|
|
#~ "}"
|
|
#~ msgstr ""
|
|
|
|
#: src/generics/trait-bounds.md:19
|
|
#, fuzzy
|
|
msgid "// struct NotClonable;"
|
|
msgstr "// estrutura NotClonable;"
|
|
|
|
#: src/generics/trait-bounds.md:21
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let foo = String::from(\"foo\");\n"
|
|
" let pair = duplicate(foo);\n"
|
|
" println!(\"{pair:?}\");"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let foo = String::from(\"foo\");\n"
|
|
" let par = duplicar(foo);\n"
|
|
" println!(\"{par:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#~ #: src/generics/trait-bounds.md:26
|
|
#~ msgid ""
|
|
#~ " let many = add_42_millions(42_i8);\n"
|
|
#~ " println!(\"{many}\");\n"
|
|
#~ " let many_more = add_42_millions(10_000_000);\n"
|
|
#~ " println!(\"{many_more}\");\n"
|
|
#~ "}\n"
|
|
#~ "```"
|
|
#~ msgstr ""
|
|
|
|
#: src/generics/trait-bounds.md:35
|
|
#, fuzzy
|
|
msgid ""
|
|
"Show a `where` clause, students will encounter it when reading code.\n"
|
|
" \n"
|
|
"```rust,ignore\n"
|
|
"fn duplicate<T>(a: T) -> (T, T)\n"
|
|
"where\n"
|
|
" T: Clone,\n"
|
|
"{\n"
|
|
" (a.clone(), a.clone())\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"Mostre uma cláusula `where`, os alunos a encontrarão ao ler o código.\n"
|
|
" \n"
|
|
"```rust, ignore\n"
|
|
"fn duplicado<T>(a: T) -> (T, T)\n"
|
|
"Onde\n"
|
|
" T: Clone,\n"
|
|
"{\n"
|
|
" (a.clone(), a.clone())\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/trait-bounds.md:46
|
|
msgid ""
|
|
"* It declutters the function signature if you have many parameters.\n"
|
|
"* It has additional features making it more powerful.\n"
|
|
" * If someone asks, the extra feature is that the type on the left of \":\" can be arbitrary, like `Option<T>`.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* Organiza a assinatura da função se você tiver muitos parâmetros.\n"
|
|
"* Possui recursos adicionais tornando-o mais poderoso.\n"
|
|
" * Se alguém perguntar, o recurso extra é que o tipo à esquerda de \":\" pode ser arbitrário, como `Option<T>`.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/generics/impl-trait.md:1
|
|
#, fuzzy
|
|
msgid "# `impl Trait`"
|
|
msgstr "# `Impl Trait`"
|
|
|
|
#: src/generics/impl-trait.md:3
|
|
msgid ""
|
|
"Similar to trait bounds, an `impl Trait` syntax can be used in function\n"
|
|
"arguments and return values:"
|
|
msgstr ""
|
|
"Semelhante aos limites do trait, uma sintaxe `impl Trait` pode ser usada na função\n"
|
|
"argumentos e valores de retorno:"
|
|
|
|
#: src/generics/impl-trait.md:6 src/generics/trait-objects.md:5 src/generics/trait-objects.md:28
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::fmt::Display;"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"use std::fmt::Display;"
|
|
|
|
#: src/generics/impl-trait.md:9
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn get_x(name: impl Display) -> impl Display {\n"
|
|
" format!(\"Hello {name}\")\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn get_x(name: display impl) -> display impl {\n"
|
|
" format!(\"Olá {name}\")\n"
|
|
"}"
|
|
|
|
#: src/generics/impl-trait.md:13
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let x = get_x(\"foo\");\n"
|
|
" println!(\"{x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let x = get_x(\"foo\");\n"
|
|
" println!(\"{x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/impl-trait.md:19
|
|
msgid ""
|
|
"* `impl Trait` cannot be used with the `::<>` turbo fish syntax.\n"
|
|
"* `impl Trait` allows you to work with types which you cannot name."
|
|
msgstr ""
|
|
"* `Impl Trait` não pode ser usado com a sintaxe `::<>` turbo fish.\n"
|
|
"* `Impl Trait` permite que você trabalhe com tipos que você não pode namear."
|
|
|
|
#: src/generics/impl-trait.md:24
|
|
msgid "The meaning of `impl Trait` is a bit different in the different positions."
|
|
msgstr "O significado de 'impl Trait' é um pouco diferente nas diferentes posições."
|
|
|
|
#: src/generics/impl-trait.md:26
|
|
msgid ""
|
|
"* For a parameter, `impl Trait` is like an anonymous generic parameter with a trait bound.\n"
|
|
"* For a return type, it means that the return type is some concrete type that implements the trait,\n"
|
|
" without naming the type. This can be useful when you don't want to expose the concrete type in a\n"
|
|
" public API."
|
|
msgstr ""
|
|
"* Para um parâmetro, `impl Trait` é como um parâmetro genérico anônimo com um limite de característica.\n"
|
|
"* Para um tipo de retorno, significa que o tipo de retorno é algum tipo concreto que implementa o trait,\n"
|
|
" sem namear o tipo. Isso pode ser útil quando você não deseja expor o tipo concreto em um\n"
|
|
" API pública."
|
|
|
|
#: src/generics/impl-trait.md:31
|
|
msgid ""
|
|
"This example is great, because it uses `impl Display` twice. It helps to explain that\n"
|
|
"nothing here enforces that it is _the same_ `impl Display` type. If we used a single \n"
|
|
"`T: Display`, it would enforce the constraint that input `T` and return `T` type are the same type.\n"
|
|
"It would not work for this particular function, as the type we expect as input is likely not\n"
|
|
"what `format!` returns. If we wanted to do the same via `: Display` syntax, we'd need two\n"
|
|
"independent generic parameters.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"Este exemplo é ótimo, porque usa `impl Display` duas vezes. Isso ajuda a explicar\n"
|
|
"nada aqui impõe que seja _o mesmo_ tipo `impl Display`. Se usássemos um único\n"
|
|
"`T: Display`, imporia a restrição de que o tipo `T` de entrada e o tipo `T` de retorno são do mesmo tipo.\n"
|
|
"Não funcionaria para esta função específica, pois o tipo que esperamos como entrada provavelmente não é\n"
|
|
"o que `format!` retorna. Se quiséssemos fazer o mesmo através da sintaxe `: Display`, precisaríamos de dois\n"
|
|
"parâmetros genéricos independentes.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/generics/closures.md:1
|
|
msgid "# Closures"
|
|
msgstr "# fechamentos"
|
|
|
|
#: src/generics/closures.md:3
|
|
msgid ""
|
|
"Closures or lambda expressions have types which cannot be named. However, they\n"
|
|
"implement special [`Fn`](https://doc.rust-lang.org/std/ops/trait.Fn.html),\n"
|
|
"[`FnMut`](https://doc.rust-lang.org/std/ops/trait.FnMut.html), and\n"
|
|
"[`FnOnce`](https://doc.rust-lang.org/std/ops/trait.FnOnce.html) traits:"
|
|
msgstr ""
|
|
"Closures ou expressões lambda têm tipos que não podem ser nameados. No entanto, eles\n"
|
|
"implementar especial [`Fn`](https://doc.rust-lang.org/std/ops/trait.Fn.html),\n"
|
|
"[`FnMut`](https://doc.rust-lang.org/std/ops/trait.FnMut.html) e\n"
|
|
"[`FnOnce`](https://doc.rust-lang.org/std/ops/trait.FnOnce.html) características:"
|
|
|
|
#: src/generics/closures.md:8
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn apply_with_log(func: impl FnOnce(i32) -> i32, input: i32) -> i32 {\n"
|
|
" println!(\"Calling function on {input}\");\n"
|
|
" func(input)\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"fn apply_with_log(func: impl FnOnce(i32) -> i32, input: i32) -> i32 {\n"
|
|
" println!(\"Calling function on {input}\");\n"
|
|
" func(input)\n"
|
|
"}"
|
|
|
|
#: src/generics/closures.md:14
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let add_3 = |x| x + 3;\n"
|
|
" let mul_5 = |x| x * 5;"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let add_3 = |x| x + 3;\n"
|
|
" let mul_5 = |x| x * 5;"
|
|
|
|
#: src/generics/closures.md:18
|
|
msgid ""
|
|
" println!(\"add_3: {}\", apply_with_log(add_3, 10));\n"
|
|
" println!(\"mul_5: {}\", apply_with_log(mul_5, 20));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" println!(\"add_3: {}\", apply_with_log(add_3, 10));\n"
|
|
" println!(\"mul_5: {}\", apply_with_log(mul_5, 20));\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/closures.md:25
|
|
msgid "If you have an `FnOnce`, you may only call it once. It might consume captured values."
|
|
msgstr "Se você tiver um `FnOnce`, poderá chamá-lo apenas uma vez. Pode consumir valores capturados."
|
|
|
|
#: src/generics/closures.md:27
|
|
msgid "An `FnMut` might mutate captured values, so you can call it multiple times but not concurrently."
|
|
msgstr "Um `FnMut` pode alterar os valores capturados, então você pode chamá-lo várias vezes, mas não simultaneamente."
|
|
|
|
#: src/generics/closures.md:29
|
|
msgid ""
|
|
"An `Fn` neither consumes nor mutates captured values, or perhaps captures nothing at all, so it can\n"
|
|
"be called multiple times concurrently."
|
|
msgstr ""
|
|
"Um `Fn` não consome nem muda os valores capturados, ou talvez não capture nada, então pode\n"
|
|
"ser chamado várias vezes simultaneamente."
|
|
|
|
#: src/generics/closures.md:32
|
|
msgid ""
|
|
"`FnMut` is a subtype of `FnOnce`. `Fn` is a subtype of `FnMut` and `FnOnce`. I.e. you can use an\n"
|
|
"`FnMut` wherever an `FnOnce` is called for, and you can use an `Fn` wherever an `FnMut` or `FnOnce`\n"
|
|
"is called for."
|
|
msgstr ""
|
|
"`FnMut` é um subtipo de `FnOnce`. `Fn` é um subtipo de `FnMut` e `FnOnce`. ou seja você pode usar um\n"
|
|
"`FnMut` sempre que um `FnOnce` é chamado, e você pode usar um `Fn` sempre que um `FnMut` ou `FnOnce`\n"
|
|
"é chamado."
|
|
|
|
#: src/generics/closures.md:36
|
|
msgid "`move` closures only implement `FnOnce`."
|
|
msgstr "Fechamentos `move` implementam apenas `FnOnce`."
|
|
|
|
#: src/generics/monomorphization.md:1
|
|
msgid "# Monomorphization"
|
|
msgstr "# Monomorfização"
|
|
|
|
#: src/generics/monomorphization.md:3
|
|
msgid "Generic code is turned into non-generic code based on the call sites:"
|
|
msgstr "O código genérico é transformado em código não genérico com base nos sites de chamadas:"
|
|
|
|
#: src/generics/monomorphization.md:5
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let integer = Some(5);\n"
|
|
" let float = Some(5.0);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let integer = Some(5);\n"
|
|
" let flutuar = Some(5.0);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/monomorphization.md:12
|
|
msgid "behaves as if you wrote"
|
|
msgstr "se comporta como se você tivesse escrito"
|
|
|
|
#: src/generics/monomorphization.md:14
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"enum Option_i32 {\n"
|
|
" Some(i32),\n"
|
|
" None,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"enum Option_i32 {\n"
|
|
" Some (i32),\n"
|
|
" None,\n"
|
|
"}"
|
|
|
|
#: src/generics/monomorphization.md:20
|
|
msgid ""
|
|
"enum Option_f64 {\n"
|
|
" Some(f64),\n"
|
|
" None,\n"
|
|
"}"
|
|
msgstr ""
|
|
"enum Option_f64 {\n"
|
|
" Some (f64),\n"
|
|
" None,\n"
|
|
"}"
|
|
|
|
#: src/generics/monomorphization.md:25
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let integer = Option_i32::Some(5);\n"
|
|
" let float = Option_f64::Some(5.0);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let integer = Option_i32::Some(5);\n"
|
|
" let float = Option_f64::Some(5.0);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/monomorphization.md:31
|
|
msgid ""
|
|
"This is a zero-cost abstraction: you get exactly the same result as if you had\n"
|
|
"hand-coded the data structures without the abstraction."
|
|
msgstr ""
|
|
"Esta é uma abstração de custo zero: você obtém exatamente o mesmo resultado como se tivesse\n"
|
|
"codificou manualmente as Structs de dados sem a abstração."
|
|
|
|
#: src/generics/trait-objects.md:1
|
|
msgid "# Trait Objects"
|
|
msgstr "# Objetos de característica"
|
|
|
|
#: src/generics/trait-objects.md:3
|
|
msgid "We've seen how a function can take arguments which implement a trait:"
|
|
msgstr "Vimos como uma função pode receber argumentos que implementam uma característica:"
|
|
|
|
#: src/generics/trait-objects.md:8
|
|
msgid ""
|
|
"fn print<T: Display>(x: T) {\n"
|
|
" println!(\"Your value: {x}\");\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn print<T: Display>(x: T) {\n"
|
|
" println!(\"Seu valor: {}\", x);\n"
|
|
"}"
|
|
|
|
#: src/generics/trait-objects.md:12
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" print(123);\n"
|
|
" print(\"Hello\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" imprimir(123);\n"
|
|
" imprima(\"Olá\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/trait-objects.md:18
|
|
msgid "However, how can we store a collection of mixed types which implement `Display`?"
|
|
msgstr "No entanto, como podemos armazenar uma coleção de tipos mistos que implementam `Display`?"
|
|
|
|
#: src/generics/trait-objects.md:20
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let xs = vec![123, \"Hello\"];\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"fn main() {\n"
|
|
" let xs = vec![123, \"Olá\"];\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/trait-objects.md:26
|
|
msgid "For this, we need _trait objects_:"
|
|
msgstr "Para isso, precisamos de _trait objects_:"
|
|
|
|
#: src/generics/trait-objects.md:31
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let xs: Vec<Box<dyn Display>> = vec![Box::new(123), Box::new(\"Hello\")];\n"
|
|
" for x in xs {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let xs: Vec<Box<dyn Display>> = vec![Box::new(123), Box::new(\"Hello\")];\n"
|
|
" for x in xs {\n"
|
|
" println!(\"x: {x}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/generics/trait-objects.md:39
|
|
msgid "Memory layout after allocating `xs`:"
|
|
msgstr "Layout da memória após alocar `xs`:"
|
|
|
|
#: src/generics/trait-objects.md:41
|
|
#, fuzzy
|
|
msgid ""
|
|
"```bob\n"
|
|
" Stack Heap\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": xs : : :\n"
|
|
": +-----------+-------+ : : +-----+-----+ :\n"
|
|
": | ptr | o---+---+-----+-->| o o | o o | :\n"
|
|
": | len | 2 | : : +-|-|-+-|-|-+ :\n"
|
|
": | capacity | 2 | : : | | | | +----+----+----+----+----+ :\n"
|
|
": +-----------+-------+ : : | | | '-->| H | e | l | l | o | :\n"
|
|
": : : | | | +----+----+----+----+----+ :\n"
|
|
"`- - - - - - - - - - - - - -' : | | | :\n"
|
|
" : | | | +-------------------------+ :\n"
|
|
" : | | '---->| \"<str as Display>::fmt\" | :\n"
|
|
" : | | +-------------------------+ :\n"
|
|
" : | | :\n"
|
|
" : | | +----+----+----+----+ :\n"
|
|
" : | '-->| 7b | 00 | 00 | 00 | :\n"
|
|
" : | +----+----+----+----+ :\n"
|
|
" : | :\n"
|
|
" : | +-------------------------+ :\n"
|
|
" : '---->| \"<i32 as Display>::fmt\" | :\n"
|
|
" : +-------------------------+ :\n"
|
|
" : :\n"
|
|
" : :\n"
|
|
" '- - - - - - - - - - - - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
msgstr ""
|
|
"```bob\n"
|
|
" Pilha\n"
|
|
".- - - - - - - - - - - - - -. .- - - - - - - - - - - - - - - - - - - - - - -.\n"
|
|
": : : :\n"
|
|
": xs : : :\n"
|
|
": +-----------+-------+ : : +-----+-----+ :\n"
|
|
": | ptr | o---+---+-----+-->| oo | oo | :\n"
|
|
": | len | 2 | : : +-|-|-+-|-|-+ :\n"
|
|
": | capacage | 2 | : : | | | | +----+----+----+----+----+ :\n"
|
|
": +-----------+-------+ : : | | | '-->| H | e | eu | eu | o | :\n"
|
|
": : : | | | +----+----+----+----+----+:\n"
|
|
"`- - - - - - - - - - - - - -' : | | | :\n"
|
|
" : | | | +-------------------------+ :\n"
|
|
" : | | '---->| \"<str as Display>::fmt\" | :\n"
|
|
" : | | +-------------------------+ :\n"
|
|
" : | | :\n"
|
|
" : | | +----+----+----+----+:\n"
|
|
" : | '-->| 7b | 00 | 00 | 00 | :\n"
|
|
" : | +----+----+----+----+ :\n"
|
|
" : | :\n"
|
|
" : | +-------------------------+ :\n"
|
|
" : '---->| \"<i32 como Display>::fmt\" | :\n"
|
|
" : +-------------------------+ :\n"
|
|
" : :\n"
|
|
" : :\n"
|
|
" '- - - - - - - - - - - - - - - - - - - - - - - -'\n"
|
|
"```"
|
|
|
|
#: src/generics/trait-objects.md:69
|
|
msgid ""
|
|
"Similarly, you need a trait object if you want to return different types\n"
|
|
"implementing a trait:"
|
|
msgstr ""
|
|
"Da mesma forma, você precisa de um objeto de característica se quiser retornar valores diferentes\n"
|
|
"implementando uma característica:"
|
|
|
|
#: src/generics/trait-objects.md:72
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn numbers(n: i32) -> Box<dyn Iterator<Item=i32>> {\n"
|
|
" if n > 0 {\n"
|
|
" Box::new(0..n)\n"
|
|
" } else {\n"
|
|
" Box::new((n..0).rev())\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"fn numbers(n: i32) -> Box<dyn Iterator<Item=i32>> {\n"
|
|
" if n > 0 {\n"
|
|
" Box::new(0..n)\n"
|
|
" } else {\n"
|
|
" Box::new((n..0).rev())\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/generics/trait-objects.md:81
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" println!(\"{:?}\", numbers(-5).collect::<Vec<_>>());\n"
|
|
" println!(\"{:?}\", numbers(5).collect::<Vec<_>>());\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" println!(\"{:?}\", numbers(-5).collect::<Vec<_>>());\n"
|
|
" println!(\"{:?}\", numbers(5).collect::<Vec<_>>());\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/morning.md:1
|
|
msgid "# Day 3: Morning Exercises"
|
|
msgstr "# Dia 3: Exercícios matinais"
|
|
|
|
#: src/exercises/day-3/morning.md:3
|
|
msgid "We will design a classical GUI library traits and trait objects."
|
|
msgstr "Vamos projetar uma biblioteca clássica de traits de GUI e objetos de trait."
|
|
|
|
#: src/exercises/day-3/simple-gui.md:1
|
|
msgid "# A Simple GUI Library"
|
|
msgstr "# Uma biblioteca GUI simples"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:3
|
|
msgid ""
|
|
"Let us design a classical GUI library using our new knowledge of traits and\n"
|
|
"trait objects."
|
|
msgstr ""
|
|
"Vamos projetar uma biblioteca GUI clássica usando nosso novo conhecimento de características e\n"
|
|
"objetos de traits."
|
|
|
|
#: src/exercises/day-3/simple-gui.md:6
|
|
msgid "We will have a number of widgets in our library:"
|
|
msgstr "Teremos vários widgets em nossa biblioteca:"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:8
|
|
msgid ""
|
|
"* `Window`: has a `title` and contains other widgets.\n"
|
|
"* `Button`: has a `label` and a callback function which is invoked when the\n"
|
|
" button is pressed.\n"
|
|
"* `Label`: has a `label`."
|
|
msgstr ""
|
|
"* `Janela`: tem um `título` e contém outros widgets.\n"
|
|
"* `Button`: tem um `label` e uma função de callback que é invocada quando o\n"
|
|
" botão é pressionado.\n"
|
|
"* `Label`: tem um `label`."
|
|
|
|
#: src/exercises/day-3/simple-gui.md:13
|
|
msgid "The widgets will implement a `Widget` trait, see below."
|
|
msgstr "Os widgets irão implementar uma característica `Widget`, veja abaixo."
|
|
|
|
#: src/exercises/day-3/simple-gui.md:15
|
|
msgid ""
|
|
"Copy the code below to <https://play.rust-lang.org/>, fill in the missing\n"
|
|
"`draw_into` methods so that you implement the `Widget` trait:"
|
|
msgstr ""
|
|
"Copie o código abaixo para <https://play.rust-lang.org/>, preencha os campos que faltam\n"
|
|
"métodos `draw_into` para que você implemente o trait `Widget`:"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:18 src/exercises/day-3/safe-ffi-wrapper.md:25
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,should_panic\n"
|
|
"// TODO: remove this when you're done with your implementation.\n"
|
|
"#![allow(unused_imports, unused_variables, dead_code)]"
|
|
msgstr ""
|
|
"```rust,should_panic\n"
|
|
"// TODO: remova isso quando terminar sua implementação.\n"
|
|
"#![allow(unused_imports, used_variables, dead_code)]"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:22
|
|
msgid ""
|
|
"pub trait Widget {\n"
|
|
" /// Natural width of `self`.\n"
|
|
" fn width(&self) -> usize;"
|
|
msgstr ""
|
|
"pub trait Widget {\n"
|
|
" /// Largura natural de `self`.\n"
|
|
" fn width(&self) -> usize;"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:26 src/exercises/day-3/solutions-morning.md:27
|
|
msgid ""
|
|
" /// Draw the widget into a buffer.\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write);"
|
|
msgstr ""
|
|
" /// Desenha o widget em um buffer.\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write);"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:29 src/exercises/day-3/solutions-morning.md:30
|
|
#, fuzzy
|
|
msgid ""
|
|
" /// Draw the widget on standard output.\n"
|
|
" fn draw(&self) {\n"
|
|
" let mut buffer = String::new();\n"
|
|
" self.draw_into(&mut buffer);\n"
|
|
" println!(\"{buffer}\");\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" /// Desenha o widget na saída padrão.\n"
|
|
" fn desenhar(&self) {\n"
|
|
" let buffer mudo = String::new();\n"
|
|
" self.draw_into(&mut buffer);\n"
|
|
" println!(\"{}\", &buffer);\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:37 src/exercises/day-3/solutions-morning.md:38
|
|
msgid ""
|
|
"pub struct Label {\n"
|
|
" label: String,\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub struct Label {\n"
|
|
" label: String,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:41 src/exercises/day-3/solutions-morning.md:42
|
|
msgid ""
|
|
"impl Label {\n"
|
|
" fn new(label: &str) -> Label {\n"
|
|
" Label {\n"
|
|
" label: label.to_owned(),\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Label {\n"
|
|
" fn new(label: &str) -> Label {\n"
|
|
" Label {\n"
|
|
" label: label.to_owned(),\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:49 src/exercises/day-3/solutions-morning.md:50
|
|
msgid ""
|
|
"pub struct Button {\n"
|
|
" label: Label,\n"
|
|
" callback: Box<dyn FnMut()>,\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub struct Button {\n"
|
|
" label: Label,\n"
|
|
" callback: Box<dyn FnMut()>,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:54 src/exercises/day-3/solutions-morning.md:55
|
|
msgid ""
|
|
"impl Button {\n"
|
|
" fn new(label: &str, callback: Box<dyn FnMut()>) -> Button {\n"
|
|
" Button {\n"
|
|
" label: Label::new(label),\n"
|
|
" callback,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Button {\n"
|
|
" fn new(label: &str, callback: Box<dyn FnMut()>) -> Button {\n"
|
|
" Button {\n"
|
|
" label: Label::new(label),\n"
|
|
" callback,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:63 src/exercises/day-3/solutions-morning.md:64
|
|
msgid ""
|
|
"pub struct Window {\n"
|
|
" title: String,\n"
|
|
" widgets: Vec<Box<dyn Widget>>,\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub struct Window {\n"
|
|
" title: String,\n"
|
|
" widgets: Vec<Box<dyn Widget>>,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:68 src/exercises/day-3/solutions-morning.md:69
|
|
msgid ""
|
|
"impl Window {\n"
|
|
" fn new(title: &str) -> Window {\n"
|
|
" Window {\n"
|
|
" title: title.to_owned(),\n"
|
|
" widgets: Vec::new(),\n"
|
|
" }\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl Window {\n"
|
|
" fn new(title: &str) -> Window {\n"
|
|
" Window {\n"
|
|
" title: title.to_owned(),\n"
|
|
" widgets: Vec::new(),\n"
|
|
" }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:76 src/exercises/day-3/solutions-morning.md:77
|
|
msgid ""
|
|
" fn add_widget(&mut self, widget: Box<dyn Widget>) {\n"
|
|
" self.widgets.push(widget);\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" fn add_widget(&mut self, widget: Box<dyn Widget>) {\n"
|
|
" self.widgets.push(widget);\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:82
|
|
msgid ""
|
|
"impl Widget for Label {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl Widget for Label {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:87 src/exercises/day-3/simple-gui.md:97 src/exercises/day-3/simple-gui.md:107
|
|
msgid ""
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:92
|
|
msgid ""
|
|
"impl Widget for Button {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl Widget for Button {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:102
|
|
msgid ""
|
|
"impl Widget for Window {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl Widget for Window {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" unimplemented!()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:112
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut window = Window::new(\"Rust GUI Demo 1.23\");\n"
|
|
" window.add_widget(Box::new(Label::new(\"This is a small text GUI demo.\")));\n"
|
|
" window.add_widget(Box::new(Button::new(\n"
|
|
" \"Click me!\",\n"
|
|
" Box::new(|| println!(\"You clicked the button!\")),\n"
|
|
" )));\n"
|
|
" window.draw();\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut window = Window::new(\"Rust GUI Demo 1.23\");\n"
|
|
" window.add_widget(Box::new(Label::new(\"Esta é uma pequena demonstração de GUI de texto.\")));\n"
|
|
" window.add_widget(Caixa::new(Botão::new(\n"
|
|
" \"Clique em mim!\",\n"
|
|
" Box::new(|| println!(\"Você clicou no botão!\")),\n"
|
|
" )));\n"
|
|
" window.draw();\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:123
|
|
msgid "The output of the above program can be something simple like this:"
|
|
msgstr "A saída do programa acima pode ser algo simples como isto:"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:125
|
|
msgid ""
|
|
"```text\n"
|
|
"========\n"
|
|
"Rust GUI Demo 1.23\n"
|
|
"========"
|
|
msgstr ""
|
|
"```texto\n"
|
|
"========\n"
|
|
"Demonstração da GUI do Rust 1.23\n"
|
|
"========"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:130
|
|
msgid "This is a small text GUI demo."
|
|
msgstr "Esta é uma pequena demonstração de GUI de texto."
|
|
|
|
#: src/exercises/day-3/simple-gui.md:132
|
|
msgid ""
|
|
"| Click me! |\n"
|
|
"```"
|
|
msgstr ""
|
|
"| Clique em mim! |\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:135
|
|
msgid ""
|
|
"If you want to draw aligned text, you can use the\n"
|
|
"[fill/alignment](https://doc.rust-lang.org/std/fmt/index.html#fillalignment)\n"
|
|
"formatting operators. In particular, notice how you can pad with different\n"
|
|
"characters (here a `'/'`) and how you can control alignment:"
|
|
msgstr ""
|
|
"Se você quiser desenhar texto alinhado, você pode usar o\n"
|
|
"[fill/alignment](https://doc.rust-lang.org/std/fmt/index.html#fillalignment)\n"
|
|
"operadores de formatação. Em particular, observe como você pode preencher com diferentes\n"
|
|
"caracteres (aqui um `'/'`) e como você pode controlar o alinhamento:"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:140
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let width = 10;\n"
|
|
" println!(\"left aligned: |{:/<width$}|\", \"foo\");\n"
|
|
" println!(\"centered: |{:/^width$}|\", \"foo\");\n"
|
|
" println!(\"right aligned: |{:/>width$}|\", \"foo\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let width = 10;\n"
|
|
" println!(\"alinhado à esquerda: |{:/<width$}|\", \"foo\");\n"
|
|
" println!(\"centralizado: |{:/^width$}|\", \"foo\");\n"
|
|
" println!(\"alinhado a direita: |{:/>width$}|\", \"foo\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:149
|
|
msgid "Using such alignment tricks, you can for example produce output like this:"
|
|
msgstr "Usando esses truques de alinhamento, você pode, por exemplo, produzir uma saída como esta:"
|
|
|
|
#: src/exercises/day-3/simple-gui.md:151
|
|
msgid ""
|
|
"```text\n"
|
|
"+--------------------------------+\n"
|
|
"| Rust GUI Demo 1.23 |\n"
|
|
"+================================+\n"
|
|
"| This is a small text GUI demo. |\n"
|
|
"| +-----------+ |\n"
|
|
"| | Click me! | |\n"
|
|
"| +-----------+ |\n"
|
|
"+--------------------------------+\n"
|
|
"```"
|
|
msgstr ""
|
|
"```texto\n"
|
|
"+--------------------------------+\n"
|
|
"| Rust GUI Demonstração 1.23 |\n"
|
|
"+==================================+\n"
|
|
"| Esta é uma pequena demonstração de GUI de texto. |\n"
|
|
"| +-----------+ |\n"
|
|
"| | Clique em mim! | |\n"
|
|
"| +-----------+ |\n"
|
|
"+--------------------------------+\n"
|
|
"```"
|
|
|
|
#: src/error-handling.md:1
|
|
msgid "# Error Handling"
|
|
msgstr "# Manipulação de erros"
|
|
|
|
#: src/error-handling.md:3
|
|
msgid "Error handling in Rust is done using explicit control flow:"
|
|
msgstr "O tratamento de erros no Rust é feito usando o fluxo de controle explícito:"
|
|
|
|
#: src/error-handling.md:5
|
|
msgid ""
|
|
"* Functions that can have errors list this in their return type,\n"
|
|
"* There are no exceptions."
|
|
msgstr ""
|
|
"* As funções que podem ter erros listam isso em seu tipo de retorno,\n"
|
|
"* Não há exceções."
|
|
|
|
#: src/error-handling/panics.md:1
|
|
msgid "# Panics"
|
|
msgstr "# Pânico"
|
|
|
|
#: src/error-handling/panics.md:3
|
|
msgid "Rust will trigger a panic if a fatal error happens at runtime:"
|
|
msgstr "O Rust acionará um pânico se um erro fatal ocorrer em tempo de execução:"
|
|
|
|
#: src/error-handling/panics.md:5
|
|
msgid ""
|
|
"```rust,editable,should_panic\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];\n"
|
|
" println!(\"v[100]: {}\", v[100]);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,editable,should_panic\n"
|
|
"fn main() {\n"
|
|
" let v = vec![10, 20, 30];\n"
|
|
" println!(\"v[100]: {}\", v[100]);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/panics.md:12
|
|
msgid ""
|
|
"* Panics are for unrecoverable and unexpected errors.\n"
|
|
" * Panics are symptoms of bugs in the program.\n"
|
|
"* Use non-panicking APIs (such as `Vec::get`) if crashing is not acceptable."
|
|
msgstr ""
|
|
"* Panics são para erros irrecuperáveis e inesperados.\n"
|
|
" * Pânicos são sintomas de bugs no programa.\n"
|
|
"* Use APIs sem pânico (como `Vec::get`) se travar não for aceitável."
|
|
|
|
#: src/error-handling/panic-unwind.md:1
|
|
msgid "# Catching the Stack Unwinding"
|
|
msgstr "# Pegando a pilha desenrolando"
|
|
|
|
#: src/error-handling/panic-unwind.md:3
|
|
msgid "By default, a panic will cause the stack to unwind. The unwinding can be caught:"
|
|
msgstr "Por padrão, um pânico fará com que a pilha se desenrole. O desenrolamento pode ser capturado:"
|
|
|
|
#: src/error-handling/panic-unwind.md:5
|
|
msgid ""
|
|
"```rust\n"
|
|
"use std::panic;"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"use std::panic;"
|
|
|
|
#: src/error-handling/panic-unwind.md:8
|
|
msgid ""
|
|
"let result = panic::catch_unwind(|| {\n"
|
|
" println!(\"hello!\");\n"
|
|
"});\n"
|
|
"assert!(result.is_ok());"
|
|
msgstr ""
|
|
"let result = panic::catch_unwind(|| {\n"
|
|
" println!(\"Olá!\");\n"
|
|
"});\n"
|
|
"assert!(result.is_ok());"
|
|
|
|
#: src/error-handling/panic-unwind.md:13
|
|
#, fuzzy
|
|
msgid ""
|
|
"let result = panic::catch_unwind(|| {\n"
|
|
" panic!(\"oh no!\");\n"
|
|
"});\n"
|
|
"assert!(result.is_err());\n"
|
|
"```"
|
|
msgstr ""
|
|
"let result = panic::catch_unwind(|| {\n"
|
|
" pânico!(\"oh não!\");\n"
|
|
"});\n"
|
|
"assert!(result.is_err());\n"
|
|
"```"
|
|
|
|
#: src/error-handling/panic-unwind.md:19
|
|
msgid ""
|
|
"* This can be useful in servers which should keep running even if a single\n"
|
|
" request crashes.\n"
|
|
"* This does not work if `panic = 'abort'` is set in your `Cargo.toml`."
|
|
msgstr ""
|
|
"* Isso pode ser útil em servidores que devem continuar rodando mesmo se um único\n"
|
|
" pedido falha.\n"
|
|
"* Isso não funciona se `panic = 'abort'` estiver definido em seu `Cargo.toml`."
|
|
|
|
#: src/error-handling/result.md:1
|
|
msgid "# Structured Error Handling with `Result`"
|
|
msgstr "# Tratamento de erro estruturado com `Result`"
|
|
|
|
#: src/error-handling/result.md:3
|
|
msgid ""
|
|
"We have already seen the `Result` enum. This is used pervasively when errors are\n"
|
|
"expected as part of normal operation:"
|
|
msgstr ""
|
|
"Já vimos a Enum `Result`. Isso é usado amplamente quando os erros são\n"
|
|
"esperado como parte da operação normal:"
|
|
|
|
#: src/error-handling/result.md:6
|
|
msgid ""
|
|
"```rust\n"
|
|
"use std::fs::File;\n"
|
|
"use std::io::Read;"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"use std::fs::File;\n"
|
|
"use std::io::Read;"
|
|
|
|
#: src/error-handling/result.md:10
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let file = File::open(\"diary.txt\");\n"
|
|
" match file {\n"
|
|
" Ok(mut file) => {\n"
|
|
" let mut contents = String::new();\n"
|
|
" file.read_to_string(&mut contents);\n"
|
|
" println!(\"Dear diary: {contents}\");\n"
|
|
" },\n"
|
|
" Err(err) => {\n"
|
|
" println!(\"The diary could not be opened: {err}\");\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let file = File::open(\"diary.txt\");\n"
|
|
" match file {\n"
|
|
" Ok(mut file) => {\n"
|
|
" let mut contents = String::new();\n"
|
|
" file.read_to_string(&mut contents);\n"
|
|
" println!(\"Querido diário: {contents}\");\n"
|
|
" },\n"
|
|
" Err(err) => {\n"
|
|
" println!(\"Não foi possível abrir o diário: {err}\");\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/result.md:27
|
|
msgid ""
|
|
" * As with `Option`, the successful value sits inside of `Result`, forcing the developer to\n"
|
|
" explicitly extract it. This encourages error checking. In the case where an error should never happen,\n"
|
|
" `unwrap()` or `expect()` can be called, and this is a signal of the developer intent too. \n"
|
|
" * `Result` documentation is a recommended read. Not during the course, but it is worth mentioning. \n"
|
|
" It contains a lot of convenience methods and functions that help functional-style programming. \n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
" * Como em `Option`, o valor bem-sucedido fica dentro de `Result`, forçando o desenvolvedor a\n"
|
|
" extraí-lo explicitamente. Isso encoraja a verificação de erros. No caso em que um erro nunca deve acontecer,\n"
|
|
" `unwrap()` ou `expect()` podem ser chamados, e isso também é um sinal da intenção do desenvolvedor.\n"
|
|
" * A documentação do `Resultado` é uma leitura recomendada. Não durante o curso, mas vale a pena mencionar.\n"
|
|
" Ele contém muitos métodos e funções de conveniência que ajudam na programação de estilo funcional.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/error-handling/try-operator.md:1
|
|
msgid "# Propagating Errors with `?`"
|
|
msgstr "# Propagando erros com `?`"
|
|
|
|
#: src/error-handling/try-operator.md:3
|
|
msgid ""
|
|
"The try-operator `?` is used to return errors to the caller. It lets you turn\n"
|
|
"the common"
|
|
msgstr ""
|
|
"O operador try `?` é usado para retornar erros ao chamador. Ele permite que você vire\n"
|
|
"o comum"
|
|
|
|
#: src/error-handling/try-operator.md:6
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"match some_expression {\n"
|
|
" Ok(value) => value,\n"
|
|
" Err(err) => return Err(err),\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"match some_expression {\n"
|
|
" Ok(value) => value,\n"
|
|
" Err(err) => return Err(err),\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/try-operator.md:13
|
|
msgid "into the much simpler"
|
|
msgstr "no muito mais simples"
|
|
|
|
#: src/error-handling/try-operator.md:15
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"some_expression?\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"some_expression?\n"
|
|
"```"
|
|
|
|
#: src/error-handling/try-operator.md:19
|
|
msgid "We can use this to simplify our error handing code:"
|
|
msgstr "Podemos usar isso para simplificar nosso código de tratamento de erros:"
|
|
|
|
#: src/error-handling/try-operator.md:21
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::fs;\n"
|
|
"use std::io::{self, Read};"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"use std::fs;\n"
|
|
"use std::io::{self, Read};"
|
|
|
|
#: src/error-handling/try-operator.md:25
|
|
msgid ""
|
|
"fn read_username(path: &str) -> Result<String, io::Error> {\n"
|
|
" let username_file_result = fs::File::open(path);"
|
|
msgstr ""
|
|
"fn read_username(path: &str) -> Result<String, io::Error> {\n"
|
|
" let username_file_result = fs::File::open(path);"
|
|
|
|
#: src/error-handling/try-operator.md:28
|
|
msgid ""
|
|
" let mut username_file = match username_file_result {\n"
|
|
" Ok(file) => file,\n"
|
|
" Err(e) => return Err(e),\n"
|
|
" };"
|
|
msgstr ""
|
|
" let mut username_file = match username_file_result {\n"
|
|
" Ok(file) => file,\n"
|
|
" Err(e) => return Err(e),\n"
|
|
" };"
|
|
|
|
#: src/error-handling/try-operator.md:33
|
|
msgid " let mut username = String::new();"
|
|
msgstr ""
|
|
|
|
#: src/error-handling/try-operator.md:35
|
|
msgid ""
|
|
" match username_file.read_to_string(&mut username) {\n"
|
|
" Ok(_) => Ok(username),\n"
|
|
" Err(e) => Err(e),\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/error-handling/try-operator.md:41
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"alice\").unwrap();\n"
|
|
" let username = read_username(\"config.dat\");\n"
|
|
" println!(\"username or error: {username:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/error-handling/try-operator.md:52 src/error-handling/converting-error-types-example.md:52
|
|
msgid ""
|
|
"* The `username` variable can be either `Ok(string)` or `Err(error)`.\n"
|
|
"* Use the `fs::write` call to test out the different scenarios: no file, empty file, file with username."
|
|
msgstr ""
|
|
"* A variável `username` pode ser `Ok(string)` ou `Err(error)`.\n"
|
|
"* Use a chamada `fs::write` para testar os diferentes cenários: nenhum arquivo, arquivo vazio, arquivo com name de usuário."
|
|
|
|
#: src/error-handling/converting-error-types.md:1 src/error-handling/converting-error-types-example.md:1
|
|
msgid "# Converting Error Types"
|
|
msgstr "# Convertendo Tipos de Erro"
|
|
|
|
#: src/error-handling/converting-error-types.md:3
|
|
msgid "The effective expansion of `?` is a little more complicated than previously indicated:"
|
|
msgstr "A expansão efetiva de `?` é um pouco mais complicada do que indicado anteriormente:"
|
|
|
|
#: src/error-handling/converting-error-types.md:5
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"expression?\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,ignore\n"
|
|
"expression?\n"
|
|
"```"
|
|
|
|
#: src/error-handling/converting-error-types.md:9
|
|
msgid "works the same as"
|
|
msgstr "funciona da mesma forma que"
|
|
|
|
#: src/error-handling/converting-error-types.md:11
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"match expression {\n"
|
|
" Ok(value) => value,\n"
|
|
" Err(err) => return Err(From::from(err)),\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust,ignore\n"
|
|
"match expression {\n"
|
|
" Ok(value) => value,\n"
|
|
" Err(err) => return Err(From::from(err)),\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/converting-error-types.md:18
|
|
msgid ""
|
|
"The `From::from` call here means we attempt to convert the error type to the\n"
|
|
"type returned by the function:"
|
|
msgstr ""
|
|
"A chamada `From::from` aqui significa que tentamos converter o tipo de erro para o\n"
|
|
"tipo retornado pela função:"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:3
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::error::Error;\n"
|
|
"use std::fmt::{self, Display, Formatter};\n"
|
|
"use std::fs::{self, File};\n"
|
|
"use std::io::{self, Read};"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::error::Error;\n"
|
|
"use std::fmt::{self, Display, Formatter};\n"
|
|
"use std::fs::{self, File};\n"
|
|
"use std::io::{self, Read};"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:9
|
|
msgid ""
|
|
"#[derive(Debug)]\n"
|
|
"enum ReadUsernameError {\n"
|
|
" IoError(io::Error),\n"
|
|
" EmptyUsername(String),\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[derive(Debug)]\n"
|
|
"enum ReadUsernameError {\n"
|
|
" IoError(io::Error),\n"
|
|
" EmptyUsername(String),\n"
|
|
"}"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:15
|
|
msgid "impl Error for ReadUsernameError {}"
|
|
msgstr "impl Error for ReadUsernameError {}"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:17
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl Display for ReadUsernameError {\n"
|
|
" fn fmt(&self, f: &mut Formatter) -> fmt::Result {\n"
|
|
" match self {\n"
|
|
" Self::IoError(e) => write!(f, \"IO error: {}\", e),\n"
|
|
" Self::EmptyUsername(filename) => write!(f, \"Found no username in {}\", filename),\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"exibição impl para ReadUsernameError {\n"
|
|
" fn fmt(&self, f: &mut Formatter) -> fmt::Result {\n"
|
|
" match self {\n"
|
|
" Self::IoError(e) => write!(f, \"IO error: {}\", e),\n"
|
|
" Self::EmptyUsername(filename) => write!(f, \"Não foi encontrado name de usuário em {}\", filename),\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:26
|
|
msgid ""
|
|
"impl From<io::Error> for ReadUsernameError {\n"
|
|
" fn from(err: io::Error) -> ReadUsernameError {\n"
|
|
" ReadUsernameError::IoError(err)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl From<io::Error> for ReadUsernameError {\n"
|
|
" fn from(err: io::Error) -> ReadUsernameError {\n"
|
|
" ReadUsernameError::IoError(err)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:32
|
|
msgid ""
|
|
"fn read_username(path: &str) -> Result<String, ReadUsernameError> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" File::open(path)?.read_to_string(&mut username)?;\n"
|
|
" if username.is_empty() {\n"
|
|
" return Err(ReadUsernameError::EmptyUsername(String::from(path)));\n"
|
|
" }\n"
|
|
" Ok(username)\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/error-handling/converting-error-types-example.md:41
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"\").unwrap();\n"
|
|
" let username = read_username(\"config.dat\");\n"
|
|
" println!(\"username or error: {username:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"\").unwrap();\n"
|
|
" let username = read_username(\"config.dat\");\n"
|
|
" println!(\"name de usuário ou erro: {name de usuário:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/converting-error-types-example.md:55
|
|
msgid ""
|
|
"It is good practice for all error types to implement `std::error::Error`, which requires `Debug` and\n"
|
|
"`Display`. It's generally helpful for them to implement `Clone` and `Eq` too where possible, to make\n"
|
|
"life easier for tests and consumers of your library. In this case we can't easily do so, because\n"
|
|
"`io::Error` doesn't implement them."
|
|
msgstr ""
|
|
"É uma boa prática para todos os tipos de erro implementar `std::error::Error`, que requer `Debug` e\n"
|
|
"`Mostrar`. Geralmente é útil para eles implementar `Clone` e `Eq` também quando possível, para fazer\n"
|
|
"vida mais fácil para testes e consumidores de sua biblioteca. Neste caso, não podemos fazê-lo facilmente, porque\n"
|
|
"`io::Error` não os implementa."
|
|
|
|
#: src/error-handling/deriving-error-enums.md:1
|
|
msgid "# Deriving Error Enums"
|
|
msgstr "# Derivando enumerações de erro"
|
|
|
|
#: src/error-handling/deriving-error-enums.md:3
|
|
msgid ""
|
|
"The [thiserror](https://docs.rs/thiserror/) crate is a popular way to create an\n"
|
|
"error enum like we did on the previous page:"
|
|
msgstr ""
|
|
"A caixa [thiserror](https://docs.rs/thiserror/) é uma maneira popular de criar um\n"
|
|
"error enum como fizemos na página anterior:"
|
|
|
|
#: src/error-handling/deriving-error-enums.md:6
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::{fs, io};\n"
|
|
"use std::io::Read;\n"
|
|
"use thiserror::Error;"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::{fs, io};\n"
|
|
"use std::io::Read;\n"
|
|
"use thiserror::Error;"
|
|
|
|
#: src/error-handling/deriving-error-enums.md:11
|
|
#, fuzzy
|
|
msgid ""
|
|
"#[derive(Debug, Error)]\n"
|
|
"enum ReadUsernameError {\n"
|
|
" #[error(\"Could not read: {0}\")]\n"
|
|
" IoError(#[from] io::Error),\n"
|
|
" #[error(\"Found no username in {0}\")]\n"
|
|
" EmptyUsername(String),\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[derive(Debug, Error)]\n"
|
|
"enum ReadUsernameError {\n"
|
|
" #[error(\"Não foi possível ler: {0}\")]\n"
|
|
" IoError(#[from] io::Error),\n"
|
|
" #[error(\"Não foi encontrado name de usuário em {0}\")]\n"
|
|
" name de usuário vazio(String),\n"
|
|
"}"
|
|
|
|
#: src/error-handling/deriving-error-enums.md:19
|
|
msgid ""
|
|
"fn read_username(path: &str) -> Result<String, ReadUsernameError> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" fs::File::open(path)?.read_to_string(&mut username)?;\n"
|
|
" if username.is_empty() {\n"
|
|
" return Err(ReadUsernameError::EmptyUsername(String::from(path)));\n"
|
|
" }\n"
|
|
" Ok(username)\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn read_username(path: &str) -> Result<String, ReadUsernameError> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" fs::File::open(path)?.read_to_string(&mut username)?;\n"
|
|
" if username.is_empty() {\n"
|
|
" return Err(ReadUsernameError::EmptyUsername(String::from(path)));\n"
|
|
" }\n"
|
|
" Ok(username)\n"
|
|
"}"
|
|
|
|
#: src/error-handling/deriving-error-enums.md:28 src/error-handling/dynamic-errors.md:25
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"\").unwrap();\n"
|
|
" match read_username(\"config.dat\") {\n"
|
|
" Ok(username) => println!(\"Username: {username}\"),\n"
|
|
" Err(err) => println!(\"Error: {err}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"\").unwrap();\n"
|
|
" match read_username(\"config.dat\") {\n"
|
|
" Ok(name de usuário) => println!(\"name de usuário: {name de usuário}\"),\n"
|
|
" Err(err) => println!(\"Erro: {err}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/deriving-error-enums.md:39
|
|
msgid ""
|
|
"`thiserror`'s derive macro automatically implements `std::error::Error`, and optionally `Display`\n"
|
|
"(if the `#[error(...)]` attributes are provided) and `From` (if the `#[from]` attribute is added).\n"
|
|
"It also works for structs."
|
|
msgstr ""
|
|
"A macro derivação do `thiserror` implementa automaticamente `std::error::Error`, e opcionalmente `Display`\n"
|
|
"(se os atributos `#[error(...)]` forem fornecidos) e `From` (se o atributo `#[from]` for adicionado).\n"
|
|
"Também funciona para structs."
|
|
|
|
#: src/error-handling/deriving-error-enums.md:43
|
|
msgid "It doesn't affect your public API, which makes it good for libraries."
|
|
msgstr "Não afeta sua API pública, o que a torna boa para bibliotecas."
|
|
|
|
#: src/error-handling/dynamic-errors.md:1
|
|
msgid "# Dynamic Error Types"
|
|
msgstr "# Tipos de erros dinâmicos"
|
|
|
|
#: src/error-handling/dynamic-errors.md:3
|
|
msgid ""
|
|
"Sometimes we want to allow any type of error to be returned without writing our own enum covering\n"
|
|
"all the different possibilities. `std::error::Error` makes this easy."
|
|
msgstr ""
|
|
"Às vezes, queremos permitir que qualquer tipo de erro seja retornado sem escrever nossa própria cobertura de Enum\n"
|
|
"todas as diferentes possibilages. `std::error::Error` torna isso fácil."
|
|
|
|
#: src/error-handling/dynamic-errors.md:6
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::fs::{self, File};\n"
|
|
"use std::io::Read;\n"
|
|
"use thiserror::Error;\n"
|
|
"use std::error::Error;"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::fs::{self, File};\n"
|
|
"use std::io::Read;\n"
|
|
"use thiserror::Error;\n"
|
|
"use std::error::Error;"
|
|
|
|
#: src/error-handling/dynamic-errors.md:12
|
|
msgid ""
|
|
"#[derive(Clone, Debug, Eq, Error, PartialEq)]\n"
|
|
"#[error(\"Found no username in {0}\")]\n"
|
|
"struct EmptyUsernameError(String);"
|
|
msgstr ""
|
|
"#[derive(Clone, Debug, Eq, Error, PartialEq)]\n"
|
|
"#[error(\"Found no username in {0}\")]\n"
|
|
"struct EmptyUsernameError(String);"
|
|
|
|
#: src/error-handling/dynamic-errors.md:16
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn read_username(path: &str) -> Result<String, Box<dyn Error>> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" File::open(path)?.read_to_string(&mut username)?;\n"
|
|
" if username.is_empty() {\n"
|
|
" return Err(EmptyUsernameError(String::from(path)).into());\n"
|
|
" }\n"
|
|
" Ok(username)\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn read_username(path: &str) -> Result<String, Box<dyn Error>> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" File::open(path)?.read_to_string(&mut name de usuário)?;\n"
|
|
" if name de usuário.is_empty() {\n"
|
|
" return Err(EmptyUsernameError(String::from(path)).into());\n"
|
|
" }\n"
|
|
" Ok (name de usuário)\n"
|
|
"}"
|
|
|
|
#: src/error-handling/dynamic-errors.md:36
|
|
msgid ""
|
|
"This saves on code, but gives up the ability to cleanly handle different error cases differently in\n"
|
|
"the program. As such it's generally not a good idea to use `Box<dyn Error>` in the public API of a\n"
|
|
"library, but it can be a good option in a program where you just want to display the error message\n"
|
|
"somewhere."
|
|
msgstr ""
|
|
"Isso economiza código, mas abre mão da capacage de lidar com diferentes casos de erro de maneira diferente em\n"
|
|
"o programa. Como tal, geralmente não é uma boa ideia usar `Box<dyn Error>` na API pública de um\n"
|
|
"biblioteca, mas pode ser uma boa Option em um programa onde você deseja apenas exibir a mensagem de erro\n"
|
|
"algum lugar."
|
|
|
|
#: src/error-handling/error-contexts.md:1
|
|
msgid "# Adding Context to Errors"
|
|
msgstr "# Adicionando contexto aos erros"
|
|
|
|
#: src/error-handling/error-contexts.md:3
|
|
msgid ""
|
|
"The widely used [anyhow](https://docs.rs/anyhow/) crate can help you add\n"
|
|
"contextual information to your errors and allows you to have fewer\n"
|
|
"custom error types:"
|
|
msgstr ""
|
|
"A caixa de [anyhow](https://docs.rs/anyhow/) amplamente usada pode ajudá-lo a adicionar\n"
|
|
"informações contextuais aos seus erros e permite que você tenha menos\n"
|
|
"tipos de erro personalizados:"
|
|
|
|
#: src/error-handling/error-contexts.md:7
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::{fs, io};\n"
|
|
"use std::io::Read;\n"
|
|
"use anyhow::{Context, Result, bail};"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::{fs, io};\n"
|
|
"use std::io::Read;\n"
|
|
"use anyhow::{Context, Result, bail};"
|
|
|
|
#: src/error-handling/error-contexts.md:12
|
|
msgid ""
|
|
"fn read_username(path: &str) -> Result<String> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" fs::File::open(path)\n"
|
|
" .context(format!(\"Failed to open {path}\"))?\n"
|
|
" .read_to_string(&mut username)\n"
|
|
" .context(\"Failed to read\")?;\n"
|
|
" if username.is_empty() {\n"
|
|
" bail!(\"Found no username in {path}\");\n"
|
|
" }\n"
|
|
" Ok(username)\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn read_username(path: &str) -> Result<String> {\n"
|
|
" let mut username = String::with_capacity(100);\n"
|
|
" fs::File::open(path)\n"
|
|
" .context(format!(\"Falha ao abrir {path}\"))?\n"
|
|
" .read_to_string(&mut username)\n"
|
|
" .context(\"Falha ao ler\"?);\n"
|
|
" if username.is_empty() {\n"
|
|
" bail!(\"Não foi encontrado nenhum name de usuário em {path}\");\n"
|
|
" }\n"
|
|
" Ok (username)\n"
|
|
"}"
|
|
|
|
#: src/error-handling/error-contexts.md:24
|
|
#, fuzzy
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"\").unwrap();\n"
|
|
" match read_username(\"config.dat\") {\n"
|
|
" Ok(username) => println!(\"Username: {username}\"),\n"
|
|
" Err(err) => println!(\"Error: {err:?}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" //fs::write(\"config.dat\", \"\").unwrap();\n"
|
|
" match read_username(\"config.dat\") {\n"
|
|
" Ok(name de usuário) => println!(\"name de usuário: {name de usuário}\"),\n"
|
|
" Err(err) => println!(\"Erro: {err:?}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/error-handling/error-contexts.md:35
|
|
msgid ""
|
|
"* `anyhow::Result<V>` is a type alias for `Result<V, anyhow::Error>`.\n"
|
|
"* `anyhow::Error` is essentially a wrapper around `Box<dyn Error>`. As such it's again generally not\n"
|
|
" a good choice for the public API of a library, but is widely used in applications.\n"
|
|
"* Actual error type inside of it can be extracted for examination if necessary.\n"
|
|
"* Functionality provided by `anyhow::Result<T>` may be familiar to Go developers, as it provides\n"
|
|
" similar usage patterns and ergonomics to `(T, error)` from Go."
|
|
msgstr ""
|
|
"* `anyhow::Result<V>` é um apelido de tipo para `Result<V, anyhow::Error>`.\n"
|
|
"* `anyhow::Error` é essencialmente um wrapper em torno de `Box<dyn Error>`. Como tal, geralmente não é\n"
|
|
" uma boa escolha para a API pública de uma biblioteca, mas é amplamente utilizada em aplicações.\n"
|
|
"* O tipo de erro real dentro dele pode ser extraído para exame, se necessário.\n"
|
|
"* A funcionalage fornecida por `anyhow::Result<T>` pode ser familiar para desenvolvedores Go, pois fornece\n"
|
|
" padrões de uso e ergonomia semelhantes a `(T, error)` do Go."
|
|
|
|
#: src/testing.md:1
|
|
msgid "# Testing"
|
|
msgstr "# Teste"
|
|
|
|
#: src/testing.md:3
|
|
msgid "Rust and Cargo come with a simple unit test framework:"
|
|
msgstr "Rust e Cargo vêm com uma estrutura de teste de unage simples:"
|
|
|
|
#: src/testing.md:5
|
|
msgid "* Unit tests are supported throughout your code."
|
|
msgstr "* Os testes de unage são suportados em todo o seu código."
|
|
|
|
#: src/testing.md:7
|
|
msgid "* Integration tests are supported via the `tests/` directory."
|
|
msgstr "* Testes de integração são suportados através do diretório `tests/`."
|
|
|
|
#: src/testing/unit-tests.md:1
|
|
msgid "# Unit Tests"
|
|
msgstr "# Testes de unage"
|
|
|
|
#: src/testing/unit-tests.md:3
|
|
msgid "Mark unit tests with `#[test]`:"
|
|
msgstr "Marque os testes de unage com `#[test]`:"
|
|
|
|
#: src/testing/unit-tests.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn first_word(text: &str) -> &str {\n"
|
|
" match text.find(' ') {\n"
|
|
" Some(idx) => &text[..idx],\n"
|
|
" None => &text,\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"fn first_word(text: &str) -> &str {\n"
|
|
" match text.find(' ') {\n"
|
|
" Some(idx) => &text[..idx],\n"
|
|
" None => &text,\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/testing/unit-tests.md:13
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_empty() {\n"
|
|
" assert_eq!(first_word(\"\"), \"\");\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn teste_vazio() {\n"
|
|
" assert_eq!(first_word(\"\"), \"\");\n"
|
|
"}"
|
|
|
|
#: src/testing/unit-tests.md:18
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_single_word() {\n"
|
|
" assert_eq!(first_word(\"Hello\"), \"Hello\");\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_single_word() {\n"
|
|
" assert_eq!(first_word(\"Olá\"), \"Olá\");\n"
|
|
"}"
|
|
|
|
#: src/testing/unit-tests.md:23
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_multiple_words() {\n"
|
|
" assert_eq!(first_word(\"Hello World\"), \"Hello\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_multiple_words() {\n"
|
|
" assert_eq!(first_word(\"Olá Mundo\"), \"Olá\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/testing/unit-tests.md:29
|
|
msgid "Use `cargo test` to find and run the unit tests."
|
|
msgstr "Use `cargo test` para encontrar e executar os testes de unage."
|
|
|
|
#: src/testing/test-modules.md:1
|
|
msgid "# Test Modules"
|
|
msgstr "# Módulos de teste"
|
|
|
|
#: src/testing/test-modules.md:3
|
|
msgid ""
|
|
"Unit tests are often put in a nested module (run tests on the\n"
|
|
"[Playground](https://play.rust-lang.org/)):"
|
|
msgstr ""
|
|
"Os testes de unage geralmente são colocados em um módulo aninhado (executar testes no\n"
|
|
"[Playground](https://play.rust-lang.org/)):"
|
|
|
|
#: src/testing/test-modules.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn helper(a: &str, b: &str) -> String {\n"
|
|
" format!(\"{a} {b}\")\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn helper(a: &str, b: &str) -> String {\n"
|
|
" format!(\"{a} {b}\")\n"
|
|
"}"
|
|
|
|
#: src/testing/test-modules.md:11
|
|
msgid ""
|
|
"pub fn main() {\n"
|
|
" println!(\"{}\", helper(\"Hello\", \"World\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"pub fn main() {\n"
|
|
" println!(\"{}\", helper(\"Olá\", \"Mundo\"));\n"
|
|
"}"
|
|
|
|
#: src/testing/test-modules.md:19
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_helper() {\n"
|
|
" assert_eq!(helper(\"foo\", \"bar\"), \"foo bar\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_helper() {\n"
|
|
" assert_eq!(helper(\"foo\", \"bar\"), \"foo bar\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/testing/test-modules.md:26
|
|
msgid ""
|
|
"* This lets you unit test private helpers.\n"
|
|
"* The `#[cfg(test)]` attribute is only active when you run `cargo test`."
|
|
msgstr ""
|
|
"* Isso permite que você teste unages auxiliares privadas.\n"
|
|
"* O atributo `#[cfg(test)]` só fica ativo quando você executa `cargo test`."
|
|
|
|
#: src/testing/doc-tests.md:1
|
|
msgid "# Documentation Tests"
|
|
msgstr "# Testes de Documentação"
|
|
|
|
#: src/testing/doc-tests.md:3
|
|
msgid "Rust has built-in support for documentation tests:"
|
|
msgstr "Rust tem suporte embutido para testes de documentação:"
|
|
|
|
#: src/testing/doc-tests.md:5
|
|
msgid ""
|
|
"```rust\n"
|
|
"/// Shortens a string to the given length.\n"
|
|
"///\n"
|
|
"/// ```\n"
|
|
"/// use playground::shorten_string;\n"
|
|
"/// assert_eq!(shorten_string(\"Hello World\", 5), \"Hello\");\n"
|
|
"/// assert_eq!(shorten_string(\"Hello World\", 20), \"Hello World\");\n"
|
|
"/// ```\n"
|
|
"pub fn shorten_string(s: &str, length: usize) -> &str {\n"
|
|
" &s[..std::cmp::min(length, s.len())]\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"/// Encurta uma string para o comprimento especificado.\n"
|
|
"///\n"
|
|
"/// ```\n"
|
|
"/// use playground::shorten_string;\n"
|
|
"/// assert_eq!(shorten_string(\"Hello World\", 5), \"Hello\");\n"
|
|
"/// assert_eq!(shorten_string(\"Olá Mundo\", 20), \"Olá Mundo\");\n"
|
|
"/// ```\n"
|
|
"pub fn short_string(s: &str, comprimento: usize) -> &str {\n"
|
|
" &s[..std::cmp::min(comprimento, s.len())]\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/testing/doc-tests.md:18
|
|
msgid ""
|
|
"* Code blocks in `///` comments are automatically seen as Rust code.\n"
|
|
"* The code will be compiled and executed as part of `cargo test`.\n"
|
|
"* Test the above code on the [Rust Playground](https://play.rust-lang.org/?"
|
|
"version=stable&mode=debug&edition=2021&gist=3ce2ad13ea1302f6572cb15cd96becf0)."
|
|
msgstr ""
|
|
"* Blocos de código em comentários `///` são vistos automaticamente como código Rust.\n"
|
|
"* O código será compilado e executado como parte do `teste de cargo`.\n"
|
|
"* Teste o código acima no [Rust Playground](https://play.rust-lang.org/?"
|
|
"version=stable&mode=debug&edition=2021&gist=3ce2ad13ea1302f6572cb15cd96becf0)."
|
|
|
|
#: src/testing/integration-tests.md:1
|
|
msgid "# Integration Tests"
|
|
msgstr "# Testes de Integração"
|
|
|
|
#: src/testing/integration-tests.md:3
|
|
msgid "If you want to test your library as a client, use an integration test."
|
|
msgstr "Se quiser testar sua biblioteca como cliente, use um teste de integração."
|
|
|
|
#: src/testing/integration-tests.md:5
|
|
msgid "Create a `.rs` file under `tests/`:"
|
|
msgstr "Crie um arquivo `.rs` em `tests/`:"
|
|
|
|
#: src/testing/integration-tests.md:7
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"use my_library::init;"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"use minha_biblioteca::init;"
|
|
|
|
#: src/testing/integration-tests.md:10
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_init() {\n"
|
|
" assert!(init().is_ok());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_init() {\n"
|
|
" assert!(init().is_ok());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/testing/integration-tests.md:16
|
|
msgid "These tests only have access to the public API of your crate."
|
|
msgstr "Esses testes só têm acesso à API pública da sua caixa."
|
|
|
|
#: src/unsafe.md:1
|
|
msgid "# Unsafe Rust"
|
|
msgstr "# rust insegura"
|
|
|
|
#: src/unsafe.md:3
|
|
msgid "The Rust language has two parts:"
|
|
msgstr "A linguagem Rust tem duas partes:"
|
|
|
|
#: src/unsafe.md:5
|
|
msgid ""
|
|
"* **Safe Rust:** memory safe, no undefined behavior possible.\n"
|
|
"* **Unsafe Rust:** can trigger undefined behavior if preconditions are violated."
|
|
msgstr ""
|
|
"* **Safe Rust:** memória segura, nenhum comportamento indefinido é possível.\n"
|
|
"* **Insafe Rust:** pode desencadear um comportamento indefinido se as pré-condições forem violadas."
|
|
|
|
#: src/unsafe.md:8
|
|
msgid ""
|
|
"We will be seeing mostly safe Rust in this course, but it's important to know\n"
|
|
"what Unsafe Rust is."
|
|
msgstr ""
|
|
"Veremos principalmente Rust seguro neste curso, mas é importante saber\n"
|
|
"o que é rust insegura."
|
|
|
|
#: src/unsafe.md:11
|
|
msgid ""
|
|
"Unsafe code is usually small and isolated, and its correctness should be carefully\n"
|
|
"documented. It is usually wrapped in a safe abstraction layer."
|
|
msgstr ""
|
|
"Código inseguro é geralmente pequeno e isolado, e sua correção deve ser cuidadosamente\n"
|
|
"documentado. Geralmente é envolto em uma camada de abstração segura."
|
|
|
|
#: src/unsafe.md:14
|
|
msgid "Unsafe Rust gives you access to five new capabilities:"
|
|
msgstr "O Unsafe Rust oferece acesso a cinco novos recursos:"
|
|
|
|
#: src/unsafe.md:16
|
|
msgid ""
|
|
"* Dereference raw pointers.\n"
|
|
"* Access or modify mutable static variables.\n"
|
|
"* Access `union` fields.\n"
|
|
"* Call `unsafe` functions, including `extern` functions.\n"
|
|
"* Implement `unsafe` traits."
|
|
msgstr ""
|
|
"* Dereference ponteiros brutos.\n"
|
|
"* Acesse ou modifique variáveis estáticas mutáveis.\n"
|
|
"* Acesse os campos `união`.\n"
|
|
"* Chamar funções `inseguras`, incluindo funções `externas`.\n"
|
|
"* Implementar traits `inseguros`."
|
|
|
|
#: src/unsafe.md:22
|
|
msgid ""
|
|
"We will briefly cover unsafe capabilities next. For full details, please see\n"
|
|
"[Chapter 19.1 in the Rust Book](https://doc.rust-lang.org/book/ch19-01-unsafe-rust.html)\n"
|
|
"and the [Rustonomicon](https://doc.rust-lang.org/nomicon/)."
|
|
msgstr ""
|
|
"A seguir, abordaremos brevemente os recursos inseguros. Para detalhes completos, consulte\n"
|
|
"[Capítulo 19.1 no Rust Book](https://doc.rust-lang.org/book/ch19-01-unsafe-rust.html)\n"
|
|
"e o [Rustonomicon](https://doc.rust-lang.org/nomicon/)."
|
|
|
|
#: src/unsafe.md:28
|
|
msgid ""
|
|
"Unsafe Rust does not mean the code is incorrect. It means that developers have\n"
|
|
"turned off the compiler safety features and have to write correct code by\n"
|
|
"themselves. It means the compiler no longer enforces Rust's memory-safety rules."
|
|
msgstr ""
|
|
"Rust inseguro não significa que o código está incorreto. Isso significa que os desenvolvedores têm\n"
|
|
"desligou os recursos de segurança do compilador e tem que escrever o código correto\n"
|
|
"eles mesmos. Isso significa que o compilador não impõe mais as regras de segurança de memória do Rust."
|
|
|
|
#: src/unsafe/raw-pointers.md:1
|
|
msgid "# Dereferencing Raw Pointers"
|
|
msgstr "# Desreferenciando ponteiros brutos"
|
|
|
|
#: src/unsafe/raw-pointers.md:3
|
|
msgid "Creating pointers is safe, but dereferencing them requires `unsafe`:"
|
|
msgstr "Criar ponteiros é seguro, mas desreferenciá-los requer `unsafe`:"
|
|
|
|
#: src/unsafe/raw-pointers.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let mut num = 5;"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let mut num = 5;"
|
|
|
|
#: src/unsafe/raw-pointers.md:9
|
|
msgid ""
|
|
" let r1 = &mut num as *mut i32;\n"
|
|
" let r2 = &num as *const i32;"
|
|
msgstr ""
|
|
" let r1 = &mut num as *mut i32;\n"
|
|
" let r2 = &num as *const i32;"
|
|
|
|
#: src/unsafe/raw-pointers.md:12
|
|
msgid ""
|
|
" // Safe because r1 and r2 were obtained from references and so are guaranteed to be non-null and\n"
|
|
" // properly aligned, the objects underlying the references from which they were obtained are\n"
|
|
" // live throughout the whole unsafe block, and they are not accessed either through the\n"
|
|
" // references or concurrently through any other pointers.\n"
|
|
" unsafe {\n"
|
|
" println!(\"r1 is: {}\", *r1);\n"
|
|
" *r1 = 10;\n"
|
|
" println!(\"r2 is: {}\", *r2);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" // Seguro porque r1 e r2 foram obtidos de referências e, portanto, são garantidos como não nulos e\n"
|
|
" // devidamente alinhados, os objetos subjacentes às referências das quais foram obtidos são\n"
|
|
" // vivem em todo o bloco inseguro e não são acessados nem por meio do\n"
|
|
" // referências ou simultaneamente por meio de quaisquer outros ponteiros.\n"
|
|
" unsafe {\n"
|
|
" println!(\"r1 é: {}\", *r1);\n"
|
|
" *r1 = 10;\n"
|
|
" println!(\"r2 é: {}\", *r2);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/raw-pointers.md:26
|
|
msgid ""
|
|
"It is good practice (and required by the Android Rust style guide) to write a comment for each\n"
|
|
"`unsafe` block explaining how the code inside it satisfies the safety requirements of the unsafe\n"
|
|
"operations it is doing."
|
|
msgstr ""
|
|
"É uma boa prática (e exigida pelo guia de estilo do Android Rust) escrever um comentário para cada\n"
|
|
"Bloco `inseguro` explicando como o código dentro dele satisfaz os requisitos de segurança do inseguro\n"
|
|
"operações que está fazendo."
|
|
|
|
#: src/unsafe/raw-pointers.md:30
|
|
msgid ""
|
|
"In the case of pointer dereferences, this means that the pointers must be\n"
|
|
"[_valid_](https://doc.rust-lang.org/std/ptr/index.html#safety), i.e.:"
|
|
msgstr ""
|
|
"No caso de desreferência de ponteiro, isso significa que os ponteiros devem ser\n"
|
|
"[_valid_](https://doc.rust-lang.org/std/ptr/index.html#safety), ou seja:"
|
|
|
|
#: src/unsafe/raw-pointers.md:33
|
|
msgid ""
|
|
" * The pointer must be non-null.\n"
|
|
" * The pointer must be _dereferenceable_ (within the bounds of a single allocated object).\n"
|
|
" * The object must not have been deallocated.\n"
|
|
" * There must not be concurrent accesses to the same location.\n"
|
|
" * If the pointer was obtained by casting a reference, the underlying object must be live and no\n"
|
|
" reference may be used to access the memory."
|
|
msgstr ""
|
|
" * O ponteiro deve ser não nulo.\n"
|
|
" * O ponteiro deve ser _desreferenciável_ (dentro dos limites de um único objeto alocado).\n"
|
|
" * O objeto não deve ter sido desalocado.\n"
|
|
" * Não deve haver acessos simultâneos ao mesmo local.\n"
|
|
" * Se o ponteiro foi obtido lançando uma referência, o objeto subjacente deve estar ativo e não\n"
|
|
" referência pode ser usada para acessar a memória."
|
|
|
|
#: src/unsafe/raw-pointers.md:40
|
|
msgid "In most cases the pointer must also be properly aligned."
|
|
msgstr "Na maioria dos casos, o ponteiro também deve estar alinhado corretamente."
|
|
|
|
#: src/unsafe/mutable-static-variables.md:1
|
|
msgid "# Mutable Static Variables"
|
|
msgstr "# Variáveis estáticas mutáveis"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:3
|
|
msgid "It is safe to read an immutable static variable:"
|
|
msgstr "É seguro ler uma variável estática imutável:"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"static HELLO_WORLD: &str = \"Hello, world!\";"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"static HELLO_WORLD: &str = \"Olá, mundo!\";"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:8
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" println!(\"HELLO_WORLD: {HELLO_WORLD}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/unsafe/mutable-static-variables.md:13
|
|
msgid ""
|
|
"However, since data races can occur, it is unsafe to read and write mutable\n"
|
|
"static variables:"
|
|
msgstr ""
|
|
"No entanto, como podem ocorrer corridas de dados, não é seguro ler e gravar dados mutáveis\n"
|
|
"variáveis estáticas:"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:16
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"static mut COUNTER: u32 = 0;"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"static mut CONTADOR: u32 = 0;"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:19
|
|
msgid ""
|
|
"fn add_to_counter(inc: u32) {\n"
|
|
" unsafe { COUNTER += inc; } // Potential data race!\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn add_to_counter(inc: u32) {\n"
|
|
" unsafe { CONTADOR += inc; } // Potencial corrida de dados!\n"
|
|
"}"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:23
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" add_to_counter(42);"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" add_to_counter(42);"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:26
|
|
msgid ""
|
|
" unsafe { println!(\"COUNTER: {COUNTER}\"); } // Potential data race!\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" unsafe { println!(\"CONTADOR: {}\", CONTADOR); } // Potencial corrida de dados!\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/mutable-static-variables.md:32
|
|
msgid ""
|
|
"Using a mutable static is generally a bad idea, but there are some cases where it might make sense\n"
|
|
"in low-level `no_std` code, such as implementing a heap allocator or working with some C APIs."
|
|
msgstr ""
|
|
"Usar uma estática mutável geralmente é uma má ideia, mas há alguns casos em que pode fazer sentido\n"
|
|
"em código `no_std` de baixo nível, como implementar um alocador de heap ou trabalhar com algumas APIs C."
|
|
|
|
#: src/unsafe/unions.md:1
|
|
msgid "# Unions"
|
|
msgstr "# Sindicatos"
|
|
|
|
#: src/unsafe/unions.md:3
|
|
msgid "Unions are like enums, but you need to track the active field yourself:"
|
|
msgstr "As uniões são como enums, mas você mesmo precisa rastrear o campo ativo:"
|
|
|
|
#: src/unsafe/unions.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"#[repr(C)]\n"
|
|
"union MyUnion {\n"
|
|
" i: u8,\n"
|
|
" b: bool,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"#[repr(C)]\n"
|
|
"union MyUnion {\n"
|
|
" i: u8,\n"
|
|
" b: bool,\n"
|
|
"}"
|
|
|
|
#: src/unsafe/unions.md:12
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let u = MyUnion { i: 42 };\n"
|
|
" println!(\"int: {}\", unsafe { u.i });\n"
|
|
" println!(\"bool: {}\", unsafe { u.b }); // Undefined behavior!\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let u = MyUnion { i: 42 };\n"
|
|
" println!(\"int: {}\", unsafe { u.i });\n"
|
|
" println!(\"bool: {}\", unsafe { u.b }); // Undefined behavior!\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/unions.md:21
|
|
msgid ""
|
|
"Unions are very rarely needed in Rust as you can usually use an enum. They are occasionally needed\n"
|
|
"for interacting with C library APIs."
|
|
msgstr ""
|
|
"As uniões raramente são necessárias no Rust, pois geralmente você pode usar um enum. Eles são ocasionalmente necessários\n"
|
|
"para interagir com as APIs da biblioteca C."
|
|
|
|
#: src/unsafe/unions.md:24
|
|
msgid ""
|
|
"If you just want to reinterpret bytes as a different type, you probably want\n"
|
|
"[`std::mem::transmute`](https://doc.rust-lang.org/stable/std/mem/fn.transmute.html) or a safe\n"
|
|
"wrapper such as the [`zerocopy`](https://crates.io/crates/zerocopy) crate."
|
|
msgstr ""
|
|
"Se você deseja apenas reinterpretar os bytes como um tipo diferente, provavelmente deseja\n"
|
|
"[`std::mem::transmute`](https://doc.rust-lang.org/stable/std/mem/fn.transmute.html) ou um cofre\n"
|
|
"wrapper como a caixa [`zerocopy`](https://crates.io/crates/zerocopy)."
|
|
|
|
#: src/unsafe/calling-unsafe-functions.md:1
|
|
msgid "# Calling Unsafe Functions"
|
|
msgstr "# Chamando funções inseguras"
|
|
|
|
#: src/unsafe/calling-unsafe-functions.md:3
|
|
msgid ""
|
|
"A function or method can be marked `unsafe` if it has extra preconditions you\n"
|
|
"must uphold to avoid undefined behaviour:"
|
|
msgstr ""
|
|
"Uma função ou método pode ser marcado como 'inseguro' se tiver pré-condições extras que você\n"
|
|
"deve respeitar para evitar comportamentos indefinidos:"
|
|
|
|
#: src/unsafe/calling-unsafe-functions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let emojis = \"🗻∈🌏\";"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"fn main() {\n"
|
|
" let emojis = \"🗻∈🌏\";"
|
|
|
|
#: src/unsafe/calling-unsafe-functions.md:10
|
|
msgid ""
|
|
" // Safe because the indices are in the correct order, within the bounds of\n"
|
|
" // the string slice, and lie on UTF-8 sequence boundaries.\n"
|
|
" unsafe {\n"
|
|
" println!(\"{}\", emojis.get_unchecked(0..4));\n"
|
|
" println!(\"{}\", emojis.get_unchecked(4..7));\n"
|
|
" println!(\"{}\", emojis.get_unchecked(7..11));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" // Seguro porque os índices estão na ordem correta, dentro dos limites de\n"
|
|
" // a slice da string e fica nos limites da sequência UTF-8.\n"
|
|
" unsafe {\n"
|
|
" println!(\"{}\", emojis.get_unchecked(0..4));\n"
|
|
" println!(\"{}\", emojis.get_unchecked(4..7));\n"
|
|
" println!(\"{}\", emojis.get_unchecked(7..11));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:1
|
|
msgid "# Writing Unsafe Functions"
|
|
msgstr "# Escrevendo Funções Inseguras"
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:3
|
|
msgid ""
|
|
"You can mark your own functions as `unsafe` if they require particular conditions to avoid undefined\n"
|
|
"behaviour."
|
|
msgstr ""
|
|
"Você pode marcar suas próprias funções como `inseguras` se elas exigirem condições específicas para evitar\n"
|
|
"comportamento."
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"/// Swaps the values pointed to by the given pointers.\n"
|
|
"///\n"
|
|
"/// # Safety\n"
|
|
"///\n"
|
|
"/// The pointers must be valid and properly aligned.\n"
|
|
"unsafe fn swap(a: *mut u8, b: *mut u8) {\n"
|
|
" let temp = *a;\n"
|
|
" *a = *b;\n"
|
|
" *b = temp;\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"/// Swaps the values pointed to by the given pointers.\n"
|
|
"///\n"
|
|
"/// # Safety\n"
|
|
"///\n"
|
|
"/// The pointers must be valid and properly aligned.\n"
|
|
"unsafe fn swap(a: *mut u8, b: *mut u8) {\n"
|
|
" let temp = *a;\n"
|
|
" *a = *b;\n"
|
|
" *b = temp;\n"
|
|
"}"
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:18
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut a = 42;\n"
|
|
" let mut b = 66;"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut a = 42;\n"
|
|
" let mut b = 66;"
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:22
|
|
msgid ""
|
|
" // Safe because ...\n"
|
|
" unsafe {\n"
|
|
" swap(&mut a, &mut b);\n"
|
|
" }"
|
|
msgstr ""
|
|
" // Safe because ...\n"
|
|
" unsafe {\n"
|
|
" swap(&mut a, &mut b);\n"
|
|
" }"
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:27
|
|
msgid ""
|
|
" println!(\"a = {}, b = {}\", a, b);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" println!(\"a = {}, b = {}\", a, b);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:33
|
|
msgid "We wouldn't actually use pointers for this because it can be done safely with references."
|
|
msgstr "Na verdade, não usaríamos ponteiros para isso porque isso pode ser feito com segurança com referências."
|
|
|
|
#: src/unsafe/writing-unsafe-functions.md:35
|
|
msgid ""
|
|
"Note that unsafe code is allowed within an unsafe function without an `unsafe` block. We can\n"
|
|
"prohibit this with `#[deny(unsafe_op_in_unsafe_fn)]`. Try adding it and see what happens."
|
|
msgstr ""
|
|
"Observe que o código inseguro é permitido dentro de uma função insegura sem um bloco `unsafe`. Pudermos\n"
|
|
"proibir isso com `#[deny(unsafe_op_in_unsafe_fn)]`. Tente adicioná-lo e veja o que acontece."
|
|
|
|
#: src/unsafe/extern-functions.md:1
|
|
msgid "# Calling External Code"
|
|
msgstr "# Chamando Código Externo"
|
|
|
|
#: src/unsafe/extern-functions.md:3
|
|
msgid ""
|
|
"Functions from other languages might violate the guarantees of Rust. Calling\n"
|
|
"them is thus unsafe:"
|
|
msgstr ""
|
|
"Funções de outras linguagens podem violar as garantias do Rust. Chamando\n"
|
|
"eles é, portanto, inseguro:"
|
|
|
|
#: src/unsafe/extern-functions.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"extern \"C\" {\n"
|
|
" fn abs(input: i32) -> i32;\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/unsafe/extern-functions.md:11
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" unsafe {\n"
|
|
" // Undefined behavior if abs misbehaves.\n"
|
|
" println!(\"Absolute value of -3 according to C: {}\", abs(-3));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" unsafe {\n"
|
|
" // Comportamento indefinido se o abs se comportar mal.\n"
|
|
" println!(\"Valor absoluto de -3 de acordo com C: {}\", abs(-3));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/extern-functions.md:21
|
|
msgid ""
|
|
"This is usually only a problem for extern functions which do things with pointers which might\n"
|
|
"violate Rust's memory model, but in general any C function might have undefined behaviour under any\n"
|
|
"arbitrary circumstances."
|
|
msgstr ""
|
|
"Isso geralmente é apenas um problema para funções externas que fazem coisas com ponteiros que podem\n"
|
|
"violam o modelo de memória do Rust, mas em geral qualquer função C pode ter comportamento indefinido sob qualquer\n"
|
|
"circunstâncias arbitrárias."
|
|
|
|
#: src/unsafe/extern-functions.md:25
|
|
msgid ""
|
|
"The `\"C\"` in this example is the ABI;\n"
|
|
"[other ABIs are available too](https://doc.rust-lang.org/reference/items/external-blocks.html)."
|
|
msgstr ""
|
|
"O `\"C\"` neste exemplo é o ABI;\n"
|
|
"[outros ABIs também estão disponíveis](https://doc.rust-lang.org/reference/items/external-blocks.html)."
|
|
|
|
#: src/unsafe/unsafe-traits.md:1
|
|
msgid "# Implementing Unsafe Traits"
|
|
msgstr "# Implementando traits Inseguros"
|
|
|
|
#: src/unsafe/unsafe-traits.md:3
|
|
msgid ""
|
|
"Like with functions, you can mark a trait as `unsafe` if the implementation must guarantee\n"
|
|
"particular conditions to avoid undefined behaviour."
|
|
msgstr ""
|
|
"Assim como nas funções, você pode marcar uma característica como `insegura` se a implementação deve garantir\n"
|
|
"condições particulares para evitar comportamento indefinido."
|
|
|
|
#: src/unsafe/unsafe-traits.md:6
|
|
msgid ""
|
|
"For example, the `zerocopy` crate has an unsafe trait that looks\n"
|
|
"[something like this](https://docs.rs/zerocopy/latest/zerocopy/trait.AsBytes.html):"
|
|
msgstr ""
|
|
"Por exemplo, a caixa `zerocopy` tem uma característica insegura que parece\n"
|
|
"[algo assim](https://docs.rs/zerocopy/latest/zerocopy/trait.AsBytes.html):"
|
|
|
|
#: src/unsafe/unsafe-traits.md:9
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::mem::size_of_val;\n"
|
|
"use std::slice;"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"use std::mem::size_of_val;\n"
|
|
"use std::slice;"
|
|
|
|
#: src/unsafe/unsafe-traits.md:13
|
|
#, fuzzy
|
|
msgid ""
|
|
"/// ...\n"
|
|
"/// # Safety\n"
|
|
"/// The type must have a defined representation and no padding.\n"
|
|
"pub unsafe trait AsBytes {\n"
|
|
" fn as_bytes(&self) -> &[u8] {\n"
|
|
" unsafe {\n"
|
|
" slice::from_raw_parts(self as *const Self as *const u8, size_of_val(self))\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"/// ...\n"
|
|
"/// # Segurança\n"
|
|
"/// O tipo deve ter uma representação definida e nenhum preenchimento.\n"
|
|
"Pub trait unsafe AsBytes {\n"
|
|
" fn as_bytes(&self) -> &[u8] {\n"
|
|
" unsafe {\n"
|
|
" slice::from_raw_parts(self as *const Self as *const u8, size_of_val(self))\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/unsafe/unsafe-traits.md:24
|
|
#, fuzzy
|
|
msgid ""
|
|
"// Safe because u32 has a defined representation and no padding.\n"
|
|
"unsafe impl AsBytes for u32 {}\n"
|
|
"```"
|
|
msgstr ""
|
|
"// Seguro porque u32 tem uma representação definida e nenhum preenchimento.\n"
|
|
"impl unsafe AsBytes para u32 {}\n"
|
|
"```"
|
|
|
|
#: src/unsafe/unsafe-traits.md:30
|
|
msgid ""
|
|
"There should be a `# Safety` section on the Rustdoc for the trait explaining the requirements for\n"
|
|
"the trait to be safely implemented."
|
|
msgstr ""
|
|
"Deve haver uma seção `# Safety` no Rustdoc para a característica explicando os requisitos para\n"
|
|
"a característica a ser implementada com segurança."
|
|
|
|
#: src/unsafe/unsafe-traits.md:33
|
|
msgid "The actual safety section for `AsBytes` is rather longer and more complicated."
|
|
msgstr "A seção de segurança real para `AsBytes` é bem mais longa e complicada."
|
|
|
|
#: src/unsafe/unsafe-traits.md:35
|
|
msgid "The built-in `Send` and `Sync` traits are unsafe."
|
|
msgstr "As características incorporadas `Send` e `Sync` não são seguras."
|
|
|
|
#: src/exercises/day-3/afternoon.md:1
|
|
msgid "# Day 3: Afternoon Exercises"
|
|
msgstr "# Dia 3: Exercícios da Tarde"
|
|
|
|
#: src/exercises/day-3/afternoon.md:3
|
|
msgid "Let us build a safe wrapper for reading directory content!"
|
|
msgstr "Vamos construir um wrapper seguro para ler o conteúdo do diretório!"
|
|
|
|
#: src/exercises/day-3/afternoon.md:7
|
|
msgid "After looking at the exercise, you can look at the [solution] provided."
|
|
msgstr "Depois de ver o exercício, você pode ver a [Solution] fornecida."
|
|
|
|
#: src/exercises/day-3/afternoon.md:9
|
|
msgid "[solution]: solutions-afternoon.md"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:1
|
|
msgid "# Safe FFI Wrapper"
|
|
msgstr "# Invólucro FFI seguro"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:3
|
|
msgid ""
|
|
"Rust has great support for calling functions through a _foreign function\n"
|
|
"interface_ (FFI). We will use this to build a safe wrapper for the `libc`\n"
|
|
"functions you would use from C to read the filenames of a directory."
|
|
msgstr ""
|
|
"Rust tem ótimo suporte para chamar funções por meio de uma função _foreign\n"
|
|
"interface_ (FFI). Usaremos isso para construir um wrapper seguro para a `libc`\n"
|
|
"funções que você usaria de C para ler os names de arquivo de um diretório."
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:7
|
|
msgid "You will want to consult the manual pages:"
|
|
msgstr "Você vai querer consultar as páginas de manual:"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:9
|
|
msgid ""
|
|
"* [`opendir(3)`](https://man7.org/linux/man-pages/man3/opendir.3.html)\n"
|
|
"* [`readdir(3)`](https://man7.org/linux/man-pages/man3/readdir.3.html)\n"
|
|
"* [`closedir(3)`](https://man7.org/linux/man-pages/man3/closedir.3.html)"
|
|
msgstr ""
|
|
"* [`opendir(3)`](https://man7.org/linux/man-pages/man3/opendir.3.html)\n"
|
|
"* [`readdir(3)`](https://man7.org/linux/man-pages/man3/readdir.3.html)\n"
|
|
"* [`closedir(3)`](https://man7.org/linux/man-pages/man3/closedir.3.html)"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:13
|
|
msgid ""
|
|
"You will also want to browse the [`std::ffi`] module, particular for [`CStr`]\n"
|
|
"and [`CString`] types which are used to hold NUL-terminated strings coming from\n"
|
|
"C. The [Nomicon] also has a very useful chapter about FFI."
|
|
msgstr ""
|
|
"Você também deve procurar o módulo [`std::ffi`], especialmente para [`CStr`]\n"
|
|
"e tipos [`CString`] que são usados para armazenar strings terminadas em NUL vindas de\n"
|
|
"C. O [Nomicon] também tem um capítulo muito útil sobre FFI."
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:17
|
|
msgid ""
|
|
"[`std::ffi`]: https://doc.rust-lang.org/std/ffi/\n"
|
|
"[`CStr`]: https://doc.rust-lang.org/std/ffi/struct.CStr.html\n"
|
|
"[`CString`]: https://doc.rust-lang.org/std/ffi/struct.CString.html\n"
|
|
"[Nomicon]: https://doc.rust-lang.org/nomicon/ffi.html"
|
|
msgstr ""
|
|
"[`std::ffi`]: https://doc.rust-lang.org/std/ffi/\n"
|
|
"[`CStr`]: https://doc.rust-lang.org/std/ffi/struct.CStr.html\n"
|
|
"[`CString`]: https://doc.rust-lang.org/std/ffi/struct.CString.html\n"
|
|
"[Nomicon]: https://doc.rust-lang.org/nomicon/ffi.html"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:22
|
|
msgid ""
|
|
"Copy the code below to <https://play.rust-lang.org/> and fill in the missing\n"
|
|
"functions and methods:"
|
|
msgstr ""
|
|
"Copie o código abaixo para <https://play.rust-lang.org/> e preencha os campos que faltam\n"
|
|
"funções e métodos:"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:29
|
|
msgid ""
|
|
"mod ffi {\n"
|
|
" use std::os::raw::{c_char, c_int, c_long, c_ulong, c_ushort};"
|
|
msgstr ""
|
|
"mod ffi {\n"
|
|
" use std::os::raw::{c_char, c_int, c_long, c_ulong, c_ushort};"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:32 src/exercises/day-3/solutions-afternoon.md:26
|
|
msgid ""
|
|
" // Opaque type. See https://doc.rust-lang.org/nomicon/ffi.html.\n"
|
|
" #[repr(C)]\n"
|
|
" pub struct DIR {\n"
|
|
" _data: [u8; 0],\n"
|
|
" _marker: core::marker::PhantomData<(*mut u8, core::marker::PhantomPinned)>,\n"
|
|
" }"
|
|
msgstr ""
|
|
" // Tipo opaco. Consulte https://doc.rust-lang.org/nomicon/ffi.html.\n"
|
|
" #[repr(C)]\n"
|
|
" pub struct DIR {\n"
|
|
" _dados: [u8; 0],\n"
|
|
" _marker: core::marker::PhantomData<(*mut u8, core::marker::PhantomPinned)>,\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:39 src/exercises/day-3/solutions-afternoon.md:33
|
|
msgid ""
|
|
" // Layout as per readdir(3) and definitions in /usr/include/x86_64-linux-gnu.\n"
|
|
" #[repr(C)]\n"
|
|
" pub struct dirent {\n"
|
|
" pub d_ino: c_long,\n"
|
|
" pub d_off: c_ulong,\n"
|
|
" pub d_reclen: c_ushort,\n"
|
|
" pub d_type: c_char,\n"
|
|
" pub d_name: [c_char; 256],\n"
|
|
" }"
|
|
msgstr ""
|
|
" // Layout as per readdir(3) and definitions in /usr/include/x86_64-linux-gnu.\n"
|
|
" #[repr(C)]\n"
|
|
" pub struct dirent {\n"
|
|
" pub d_ino: c_long,\n"
|
|
" pub d_off: c_ulong,\n"
|
|
" pub d_reclen: c_ushort,\n"
|
|
" pub d_type: c_char,\n"
|
|
" pub d_name: [c_char; 256],\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:49 src/exercises/day-3/solutions-afternoon.md:43
|
|
msgid ""
|
|
" extern \"C\" {\n"
|
|
" pub fn opendir(s: *const c_char) -> *mut DIR;\n"
|
|
" pub fn readdir(s: *mut DIR) -> *const dirent;\n"
|
|
" pub fn closedir(s: *mut DIR) -> c_int;\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" extern \"C\" {\n"
|
|
" pub fn opendir(s: *const c_char) -> *mut DIR;\n"
|
|
" pub fn readdir(s: *mut DIR) -> *const dirent;\n"
|
|
" pub fn closedir(s: *mut DIR) -> c_int;\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:56 src/exercises/day-3/solutions-afternoon.md:50
|
|
msgid ""
|
|
"use std::ffi::{CStr, CString, OsStr, OsString};\n"
|
|
"use std::os::unix::ffi::OsStrExt;"
|
|
msgstr ""
|
|
"use std::ffi::{CStr, CString, OsStr, OsString};\n"
|
|
"use std::os::unix::ffi::OsStrExt;"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:59
|
|
msgid ""
|
|
"#[derive(Debug)]\n"
|
|
"struct DirectoryIterator {\n"
|
|
" path: CString,\n"
|
|
" dir: *mut ffi::DIR,\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[derive(Debug)]\n"
|
|
"struct DirectoryIterator {\n"
|
|
" path: CString,\n"
|
|
" dir: *mut ffi::DIR,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:65
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl DirectoryIterator {\n"
|
|
" fn new(path: &str) -> Result<DirectoryIterator, String> {\n"
|
|
" // Call opendir and return a Ok value if that worked,\n"
|
|
" // otherwise return Err with a message.\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl DirectoryIterator {\n"
|
|
" fn new(path: &str) -> Result<DirectoryIterator, String> {\n"
|
|
" // Chame opendir e retorne um valor Ok se funcionou,\n"
|
|
" // caso contrário, retorna Err com uma mensagem.\n"
|
|
" não implementado!()\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:73
|
|
#, fuzzy
|
|
msgid ""
|
|
"impl Iterator for DirectoryIterator {\n"
|
|
" type Item = OsString;\n"
|
|
" fn next(&mut self) -> Option<OsString> {\n"
|
|
" // Keep calling readdir until we get a NULL pointer back.\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Iterator para DirectoryIterator {\n"
|
|
" tipo Item = OsString;\n"
|
|
" fn next(&mut self) -> Option<OsString> {\n"
|
|
" // Continue chamando readdir até obtermos um ponteiro NULL de volta.\n"
|
|
" não implementado!()\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:81
|
|
msgid ""
|
|
"impl Drop for DirectoryIterator {\n"
|
|
" fn drop(&mut self) {\n"
|
|
" // Call closedir as needed.\n"
|
|
" unimplemented!()\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-3/safe-ffi-wrapper.md:88
|
|
msgid ""
|
|
"fn main() -> Result<(), String> {\n"
|
|
" let iter = DirectoryIterator::new(\".\")?;\n"
|
|
" println!(\"files: {:#?}\", iter.collect::<Vec<_>>());\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/welcome-day-4.md:1
|
|
msgid "# Welcome to Day 4"
|
|
msgstr "# Bem-vindo ao Dia 4"
|
|
|
|
#: src/welcome-day-4.md:3
|
|
msgid "Today we will look at two main topics:"
|
|
msgstr "Hoje veremos dois tópicos principais:"
|
|
|
|
#: src/welcome-day-4.md:5
|
|
msgid "* Concurrency: threads, channels, shared state, `Send` and `Sync`."
|
|
msgstr "* Simultaneage: threads, canais, estado compartilhado, `Send` e `Sync`."
|
|
|
|
#: src/welcome-day-4.md:7
|
|
msgid ""
|
|
"* Android: building binaries and libraries, using AIDL, logging, and\n"
|
|
" interoperability with C, C++, and Java."
|
|
msgstr ""
|
|
"* Android: construindo binários e bibliotecas, usando AIDL, log e\n"
|
|
" interoperabilage com C, C++ e Java."
|
|
|
|
#: src/welcome-day-4.md:10
|
|
msgid ""
|
|
"> We will attempt to call Rust from one of your own projects today. So try to\n"
|
|
"> find a little corner of your code base where we can move some lines of code to\n"
|
|
"> Rust. The fewer dependencies and \"exotic\" types the better. Something that\n"
|
|
"> parses some raw bytes would be ideal."
|
|
msgstr ""
|
|
"> Tentaremos chamar Rust de um de seus próprios projetos hoje. Então tente\n"
|
|
"> encontre um pequeno canto da sua base de código onde podemos mover algumas linhas de código para\n"
|
|
"> rust. Quanto menos dependências e tipos \"exóticos\", melhor. Algo que\n"
|
|
"> analisa alguns bytes brutos seria o ideal."
|
|
|
|
#: src/concurrency.md:1
|
|
msgid "# Fearless Concurrency"
|
|
msgstr "# Simultaneage sem medo"
|
|
|
|
#: src/concurrency.md:3
|
|
msgid ""
|
|
"Rust has full support for concurrency using OS threads with mutexes and\n"
|
|
"channels."
|
|
msgstr ""
|
|
"Rust tem suporte total para simultaneage usando threads do SO com mutexes e\n"
|
|
"canais."
|
|
|
|
#: src/concurrency.md:6
|
|
msgid ""
|
|
"The Rust type system plays an important role in making many concurrency bugs\n"
|
|
"compile time bugs. This is often referred to as _fearless concurrency_ since you\n"
|
|
"can rely on the compiler to ensure correctness at runtime."
|
|
msgstr ""
|
|
"O sistema de tipo Rust desempenha um papel importante na criação de muitos bugs de simultaneage\n"
|
|
"erros de tempo de compilação. Isso geralmente é chamado de _simultaneage sem medo_, pois você\n"
|
|
"pode confiar no compilador para garantir a exatidão no tempo de execução."
|
|
|
|
#: src/concurrency/threads.md:1
|
|
msgid "# Threads"
|
|
msgstr "# Tópicos"
|
|
|
|
#: src/concurrency/threads.md:3
|
|
msgid "Rust threads work similarly to threads in other languages:"
|
|
msgstr "Os encadeamentos Rust funcionam de maneira semelhante aos encadeamentos em outras linguagens:"
|
|
|
|
#: src/concurrency/threads.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::thread;\n"
|
|
"use std::time::Duration;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::thread;\n"
|
|
"use std::time::Duration;"
|
|
|
|
#: src/concurrency/threads.md:9
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" thread::spawn(|| {\n"
|
|
" for i in 1..10 {\n"
|
|
" println!(\"Count in thread: {i}!\");\n"
|
|
" thread::sleep(Duration::from_millis(5));\n"
|
|
" }\n"
|
|
" });"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/threads.md:17
|
|
msgid ""
|
|
" for i in 1..5 {\n"
|
|
" println!(\"Main thread: {i}\");\n"
|
|
" thread::sleep(Duration::from_millis(5));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/threads.md:24
|
|
msgid ""
|
|
"* Threads are all daemon threads, the main thread does not wait for them.\n"
|
|
"* Thread panics are independent of each other.\n"
|
|
" * Panics can carry a payload, which can be unpacked with `downcast_ref`."
|
|
msgstr ""
|
|
"* Threads são todos threads daemon, o thread principal não espera por eles.\n"
|
|
"* Thread panics são independentes uns dos outros.\n"
|
|
" * Os pânicos podem carregar uma cargo útil, que pode ser descompactada com `downcast_ref`."
|
|
|
|
#: src/concurrency/threads.md:32
|
|
msgid ""
|
|
"* Notice that the thread is stopped before it reaches 10 — the main thread is\n"
|
|
" not waiting."
|
|
msgstr ""
|
|
"* Observe que o thread é interrompido antes de atingir 10 — o thread principal é\n"
|
|
" não esperando."
|
|
|
|
#: src/concurrency/threads.md:35
|
|
msgid ""
|
|
"* Use `let handle = thread::spawn(...)` and later `handle.join()` to wait for\n"
|
|
" the thread to finish."
|
|
msgstr ""
|
|
"* Use `let handle = thread::spawn(...)` e posteriormente `handle.join()` para aguardar\n"
|
|
" o fio para terminar."
|
|
|
|
#: src/concurrency/threads.md:38
|
|
msgid "* Trigger a panic in the thread, notice how this doesn't affect `main`."
|
|
msgstr "* Acionar um pânico no tópico, observe como isso não afeta `main`."
|
|
|
|
#: src/concurrency/threads.md:40
|
|
msgid ""
|
|
"* Use the `Result` return value from `handle.join()` to get access to the panic\n"
|
|
" payload. This is a good time to talk about [`Any`]."
|
|
msgstr ""
|
|
"* Use o valor de retorno `Result` de `handle.join()` para obter acesso ao pânico\n"
|
|
" payload. Este é um bom momento para falar sobre [`Any`]."
|
|
|
|
#: src/concurrency/threads.md:43
|
|
msgid "[`Any`]: https://doc.rust-lang.org/std/any/index.html"
|
|
msgstr "[`Qualquer`]: https://doc.rust-lang.org/std/any/index.html"
|
|
|
|
#: src/concurrency/scoped-threads.md:1
|
|
msgid "# Scoped Threads"
|
|
msgstr "# Tópicos com Escopo"
|
|
|
|
#: src/concurrency/scoped-threads.md:3
|
|
msgid "Normal threads cannot borrow from their environment:"
|
|
msgstr "Threads normais não podem pedir emprestado de seu ambiente:"
|
|
|
|
#: src/concurrency/scoped-threads.md:5
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::thread;"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::thread;"
|
|
|
|
#: src/concurrency/scoped-threads.md:8 src/concurrency/scoped-threads.md:22
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let s = String::from(\"Hello\");"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let s = String::from(\"Olá\");"
|
|
|
|
#: src/concurrency/scoped-threads.md:11
|
|
msgid ""
|
|
" thread::spawn(|| {\n"
|
|
" println!(\"Length: {}\", s.len());\n"
|
|
" });\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/scoped-threads.md:17
|
|
msgid "However, you can use a [scoped thread][1] for this:"
|
|
msgstr "No entanto, você pode usar um [tópico com escopo] [1] para isso:"
|
|
|
|
#: src/concurrency/scoped-threads.md:19
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::thread;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::thread;"
|
|
|
|
#: src/concurrency/scoped-threads.md:25
|
|
msgid ""
|
|
" thread::scope(|scope| {\n"
|
|
" scope.spawn(|| {\n"
|
|
" println!(\"Length: {}\", s.len());\n"
|
|
" });\n"
|
|
" });\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" thread::scope(|scope| {\n"
|
|
" scope.spawn(|| {\n"
|
|
" println!(\"Length: {}\", s.len());\n"
|
|
" });\n"
|
|
" });\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/concurrency/scoped-threads.md:33
|
|
msgid "[1]: https://doc.rust-lang.org/std/thread/fn.scope.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/thread/fn.scope.html"
|
|
|
|
#: src/concurrency/scoped-threads.md:35
|
|
msgid ""
|
|
"* The reason for that is that when the `thread::scope` function completes, all the threads are guaranteed to be joined, so "
|
|
"they can return borrowed data.\n"
|
|
"* Normal Rust borrowing rules apply: you can either borrow mutably by one thread, or immutably by any number of threads.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* A razão para isso é que, quando a função `thread::scope` for concluída, todas as threads serão unidas, para que possam "
|
|
"retornar dados emprestados.\n"
|
|
"* Aplicam-se as regras normais de empréstimo do Rust: você pode emprestar mutável por um encadeamento ou imutavelmente por "
|
|
"qualquer número de encadeamentos.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/concurrency/channels.md:1
|
|
msgid "# Channels"
|
|
msgstr "# Canais"
|
|
|
|
#: src/concurrency/channels.md:3
|
|
msgid ""
|
|
"Rust channels have two parts: a `Sender<T>` and a `Receiver<T>`. The two parts\n"
|
|
"are connected via the channel, but you only see the end-points."
|
|
msgstr ""
|
|
"Os canais Rust têm duas partes: um `Sender<T>` e um `Receiver<T>`. as duas partes\n"
|
|
"estão conectados através do canal, mas você só vê os Points finais."
|
|
|
|
#: src/concurrency/channels.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::sync::mpsc;\n"
|
|
"use std::thread;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::sync::mpsc;\n"
|
|
"use std::thread;"
|
|
|
|
#: src/concurrency/channels.md:10 src/concurrency/channels/unbounded.md:10
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let (tx, rx) = mpsc::channel();"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let (tx, rx) = mpsc::channel();"
|
|
|
|
#: src/concurrency/channels.md:13
|
|
msgid ""
|
|
" tx.send(10).unwrap();\n"
|
|
" tx.send(20).unwrap();"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/channels.md:16
|
|
msgid ""
|
|
" println!(\"Received: {:?}\", rx.recv());\n"
|
|
" println!(\"Received: {:?}\", rx.recv());"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/channels.md:19
|
|
msgid ""
|
|
" let tx2 = tx.clone();\n"
|
|
" tx2.send(30).unwrap();\n"
|
|
" println!(\"Received: {:?}\", rx.recv());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/channels.md:27
|
|
msgid ""
|
|
"* `mpsc` stands for Multi-Producer, Single-Consumer. `Sender` and `SyncSender` implement `Clone` (so\n"
|
|
" you can make multiple producers) but `Receiver` does not.\n"
|
|
"* `send()` and `recv()` return `Result`. If they return `Err`, it means the counterpart `Sender` or\n"
|
|
" `Receiver` is dropped and the channel is closed."
|
|
msgstr ""
|
|
"* `mpsc` significa Multi-Produtor, Único-Consumidor. `Sender` e `SyncSender` implementam `Clone` (então\n"
|
|
" você pode criar vários produtores), mas `Receiver` não.\n"
|
|
"* `send()` e `recv()` retornam `Result`. Se retornarem `Err`, significa a contraparte `Sender` ou\n"
|
|
" `Receiver` é descartado e o canal é fechado."
|
|
|
|
#: src/concurrency/channels/unbounded.md:1
|
|
msgid "# Unbounded Channels"
|
|
msgstr "# canais ilimitados"
|
|
|
|
#: src/concurrency/channels/unbounded.md:3
|
|
msgid "You get an unbounded and asynchronous channel with `mpsc::channel()`:"
|
|
msgstr "Você obtém um canal ilimitado e assíncrono com `mpsc::channel()`:"
|
|
|
|
#: src/concurrency/channels/unbounded.md:5 src/concurrency/channels/bounded.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::sync::mpsc;\n"
|
|
"use std::thread;\n"
|
|
"use std::time::Duration;"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"use std::sync::mpsc;\n"
|
|
"use std::thread;\n"
|
|
"use std::time::Duration;"
|
|
|
|
#: src/concurrency/channels/unbounded.md:13 src/concurrency/channels/bounded.md:13
|
|
msgid ""
|
|
" thread::spawn(move || {\n"
|
|
" let thread_id = thread::current().id();\n"
|
|
" for i in 1..10 {\n"
|
|
" tx.send(format!(\"Message {i}\")).unwrap();\n"
|
|
" println!(\"{thread_id:?}: sent Message {i}\");\n"
|
|
" }\n"
|
|
" println!(\"{thread_id:?}: done\");\n"
|
|
" });\n"
|
|
" thread::sleep(Duration::from_millis(100));"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/channels/unbounded.md:23
|
|
msgid ""
|
|
" for msg in rx.iter() {\n"
|
|
" println!(\"Main: got {}\", msg);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
|
|
#: src/concurrency/channels/bounded.md:1
|
|
msgid "# Bounded Channels"
|
|
msgstr "# Canais Delimitados"
|
|
|
|
#: src/concurrency/channels/bounded.md:3
|
|
msgid "Bounded and synchronous channels make `send` block the current thread:"
|
|
msgstr "Canais limitados e síncronos fazem `send` bloquear o thread atual:"
|
|
|
|
#: src/concurrency/channels/bounded.md:10
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let (tx, rx) = mpsc::sync_channel(3);"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let (tx, rx) = mpsc::sync_channel(3);"
|
|
|
|
#: src/concurrency/channels/bounded.md:23
|
|
#, fuzzy
|
|
msgid ""
|
|
" for msg in rx.iter() {\n"
|
|
" println!(\"Main: got {msg}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" for msg em rx.iter() {\n"
|
|
" println!(\"Main: obteve {}\", msg);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/concurrency/shared_state.md:1
|
|
msgid "# Shared State"
|
|
msgstr "# Estado Compartilhado"
|
|
|
|
#: src/concurrency/shared_state.md:3
|
|
msgid ""
|
|
"Rust uses the type system to enforce synchronization of shared data. This is\n"
|
|
"primarily done via two types:"
|
|
msgstr ""
|
|
"Rust usa o sistema de tipos para impor a sincronização de dados compartilhados. Isso é\n"
|
|
"feito principalmente através de dois tipos:"
|
|
|
|
#: src/concurrency/shared_state.md:6
|
|
msgid ""
|
|
"* [`Arc<T>`][1], atomic reference counted `T`: handles sharing between threads and\n"
|
|
" takes care to deallocate `T` when the last reference is dropped,\n"
|
|
"* [`Mutex<T>`][2]: ensures mutually exclusive access to the `T` value."
|
|
msgstr ""
|
|
"* [`Arc<T>`][1], referência atômica contada `T`: manipula o compartilhamento entre threads e\n"
|
|
" toma o cuidado de desalocar `T` quando a última referência é descartada,\n"
|
|
"* [`Mutex<T>`][2]: garante acesso mutuamente exclusivo ao valor `T`."
|
|
|
|
#: src/concurrency/shared_state.md:10
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/sync/struct.Arc.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/sync/struct.Mutex.html"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/sync/struct.Arc.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/sync/struct.Mutex.html"
|
|
|
|
#: src/concurrency/shared_state/arc.md:1
|
|
msgid "# `Arc`"
|
|
msgstr "# `Arc`"
|
|
|
|
#: src/concurrency/shared_state/arc.md:3
|
|
msgid "[`Arc<T>`][1] allows shared read-only access via its `clone` method:"
|
|
msgstr "[`Arc<T>`][1] permite acesso somente leitura compartilhado por meio de seu método `clone`:"
|
|
|
|
#: src/concurrency/shared_state/arc.md:5
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::thread;\n"
|
|
"use std::sync::Arc;"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"use std::thread;\n"
|
|
"use std::sync::Arc;"
|
|
|
|
#: src/concurrency/shared_state/arc.md:9
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let v = Arc::new(vec![10, 20, 30]);\n"
|
|
" let mut handles = Vec::new();\n"
|
|
" for _ in 1..5 {\n"
|
|
" let v = v.clone();\n"
|
|
" handles.push(thread::spawn(move || {\n"
|
|
" let thread_id = thread::current().id();\n"
|
|
" println!(\"{thread_id:?}: {v:?}\");\n"
|
|
" }));\n"
|
|
" }"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let v = Arc::new(vec![10, 20, 30]);\n"
|
|
" let mut handles = Vec::new();\n"
|
|
" for _ in 1..5 {\n"
|
|
" let v = v.clone();\n"
|
|
" handles.push(thread::spawn(move || {\n"
|
|
" let thread_id = thread::current().id();\n"
|
|
" println!(\"{thread_id:?}: {v:?}\");\n"
|
|
" }));\n"
|
|
" }"
|
|
|
|
#: src/concurrency/shared_state/arc.md:20
|
|
msgid ""
|
|
" handles.into_iter().for_each(|h| h.join().unwrap());\n"
|
|
" println!(\"v: {v:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" handles.into_iter().for_each(|h| h.join().unwrap());\n"
|
|
" println!(\"v: {v:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/concurrency/shared_state/arc.md:25
|
|
msgid "[1]: https://doc.rust-lang.org/std/sync/struct.Arc.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/sync/struct.Arc.html"
|
|
|
|
#: src/concurrency/shared_state/arc.md:29
|
|
msgid ""
|
|
"* `Arc` stands for \"Atomic Reference Counted\", a thread safe version of `Rc` that uses atomic\n"
|
|
" operations.\n"
|
|
"* `Arc<T>` implements `Clone` whether or not `T` does. It implements `Send` and `Sync` iff `T`\n"
|
|
" implements them both.\n"
|
|
"* `Arc::clone()` has the cost of atomic operations that get executed, but after that the use of the\n"
|
|
" `T` is free.\n"
|
|
"* Beware of reference cycles, `Arc` does not use a garbage collector to detect them.\n"
|
|
" * `std::sync::Weak` can help."
|
|
msgstr ""
|
|
"* `Arc` significa \"Atomic Reference Counted\", uma versão thread-safe de `Rc` que usa dados atômicos\n"
|
|
" operações.\n"
|
|
"* `Arc<T>` implementa `Clone` quer `T` o faça ou não. Ele implementa `Send` e `Sync` iff `T`\n"
|
|
" implementa os dois.\n"
|
|
"* `Arc::clone()` tem o custo de operações atômicas que são executadas, mas depois disso o uso do\n"
|
|
" `T` é gratuito.\n"
|
|
"* Cuidado com os ciclos de referência, `Arc` não usa um coletor de lixo para detectá-los.\n"
|
|
" * `std::sync::Weak` pode ajudar."
|
|
|
|
#: src/concurrency/shared_state/mutex.md:1
|
|
msgid "# `Mutex`"
|
|
msgstr "# `Mutex`"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:3
|
|
msgid ""
|
|
"[`Mutex<T>`][1] ensures mutual exclusion _and_ allows mutable access to `T`\n"
|
|
"behind a read-only interface:"
|
|
msgstr ""
|
|
"[`Mutex<T>`][1] garante exclusão mútua _e_ permite acesso mutável a `T`\n"
|
|
"por trás de uma interface somente leitura:"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:6
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"use std::sync::Mutex;"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"use std::sync::Mutex;"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:9
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let v: Mutex<Vec<i32>> = Mutex::new(vec![10, 20, 30]);\n"
|
|
" println!(\"v: {:?}\", v.lock().unwrap());"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let v: Mutex<Vec<i32>> = Mutex::new(vec![10, 20, 30]);\n"
|
|
" println!(\"v: {:?}\", v.lock().unwrap());"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:13
|
|
msgid ""
|
|
" {\n"
|
|
" let v: &Mutex<Vec<i32>> = &v;\n"
|
|
" let mut guard = v.lock().unwrap();\n"
|
|
" guard.push(40);\n"
|
|
" }"
|
|
msgstr ""
|
|
" {\n"
|
|
" let v: &Mutex<Vec<i32>> = &v;\n"
|
|
" let mut guard = v.lock().unwrap();\n"
|
|
" guard.push(40);\n"
|
|
" }"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:19
|
|
msgid ""
|
|
" println!(\"v: {:?}\", v.lock().unwrap());\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" println!(\"v: {:?}\", v.lock().unwrap());\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:23
|
|
msgid ""
|
|
"Notice how we have a [`impl<T: Send> Sync for Mutex<T>`][2] blanket\n"
|
|
"implementation."
|
|
msgstr ""
|
|
"Observe como temos um cobertor [`impl<T: Send> Sync for Mutex<T>`][2]\n"
|
|
"implementação."
|
|
|
|
#: src/concurrency/shared_state/mutex.md:26
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/sync/struct.Mutex.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/sync/struct.Mutex.html#impl-Sync-for-Mutex%3CT%3E\n"
|
|
"[3]: https://doc.rust-lang.org/std/sync/struct.Arc.html"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/sync/struct.Mutex.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/sync/struct.Mutex.html#impl-Sync-for-Mutex%3CT%3E\n"
|
|
"[3]: https://doc.rust-lang.org/std/sync/struct.Arc.html"
|
|
|
|
#: src/concurrency/shared_state/mutex.md:30
|
|
msgid ""
|
|
"* `Mutex` in Rust looks like a collection with just one element - the protected data.\n"
|
|
" * It is not possible to forget to acquire the mutex before accessing the protected data.\n"
|
|
"* You can get an `&mut T` from an `&Mutex<T>` by taking the lock. The `MutexGuard` ensures that the\n"
|
|
" `&mut T` doesn't outlive the lock being held.\n"
|
|
"* `Mutex<T>` implements both `Send` and `Sync` iff `T` implements `Send`.\n"
|
|
"* A read-write lock counterpart - `RwLock`.\n"
|
|
"* Why does `lock()` return a `Result`? \n"
|
|
" * If the thread that held the `Mutex` panicked, the `Mutex` becomes \"poisoned\" to signal that\n"
|
|
" the data it protected might be in an inconsistent state. Calling `lock()` on a poisoned mutex\n"
|
|
" fails with a [`PoisonError`]. You can call `into_inner()` on the error to recover the data\n"
|
|
" regardless."
|
|
msgstr ""
|
|
"* `Mutex` em Rust parece uma coleção com apenas um elemento - os dados protegidos.\n"
|
|
" * Não é possível esquecer de adquirir o mutex antes de acessar os dados protegidos.\n"
|
|
"* Você pode obter um `&mut T` de um `&Mutex<T>` pegando o bloqueio. O `MutexGuard` garante que o\n"
|
|
" `&mut T` não sobrevive ao bloqueio sendo mantido.\n"
|
|
"* `Mutex<T>` implementa `Send` e `Sync` se `T` implementa `Send`.\n"
|
|
"* Uma contraparte de bloqueio de leitura e gravação - `RwLock`.\n"
|
|
"* Por que `lock()` retorna um `Result`?\n"
|
|
" * Se o thread que manteve o `Mutex` entrou em pânico, o `Mutex` torna-se \"envenenado\" para sinalizar que\n"
|
|
" os dados protegidos podem estar em um estado inconsistente. Chamando `lock ()` em um mutex envenenado\n"
|
|
" falha com um [`PoisonError`]. Você pode chamar `into_inner()` no erro para recuperar os dados\n"
|
|
" independentemente."
|
|
|
|
#: src/concurrency/shared_state/mutex.md:44
|
|
msgid ""
|
|
"[`PoisonError`]: https://doc.rust-lang.org/std/sync/struct.PoisonError.html \n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"[`PoisonError`]: https://doc.rust-lang.org/std/sync/struct.PoisonError.html\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/concurrency/shared_state/example.md:3
|
|
msgid "Let us see `Arc` and `Mutex` in action:"
|
|
msgstr "Vamos ver `Arc` e `Mutex` em ação:"
|
|
|
|
#: src/concurrency/shared_state/example.md:5
|
|
msgid ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::thread;\n"
|
|
"// use std::sync::{Arc, Mutex};"
|
|
msgstr ""
|
|
"```rust,editable,compile_fail\n"
|
|
"use std::thread;\n"
|
|
"// usa std::sync::{Arc, Mutex};"
|
|
|
|
#: src/concurrency/shared_state/example.md:9
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let mut v = vec![10, 20, 30];\n"
|
|
" let handle = thread::spawn(|| {\n"
|
|
" v.push(10);\n"
|
|
" });\n"
|
|
" v.push(1000);"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let mut v = vec![10, 20, 30];\n"
|
|
" let handle = thread::spawn(|| {\n"
|
|
" v.push(10);\n"
|
|
" });\n"
|
|
" v.push(1000);"
|
|
|
|
#: src/concurrency/shared_state/example.md:16
|
|
msgid ""
|
|
" handle.join().unwrap();\n"
|
|
" println!(\"v: {v:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" handle.join().unwrap();\n"
|
|
" println!(\"v: {v:?}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/concurrency/shared_state/example.md:23
|
|
msgid ""
|
|
"Possible solution:\n"
|
|
msgstr ""
|
|
"Solução possível:\n"
|
|
|
|
#: src/concurrency/shared_state/example.md:29
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v = Arc::new(Mutex::new(vec![10, 20, 30]));"
|
|
msgstr ""
|
|
"```rust,editable\n"
|
|
"fn main() {\n"
|
|
" let v = Arc::new(Mutex::new(vec![10, 20, 30]));"
|
|
|
|
#: src/concurrency/shared_state/example.md:32
|
|
msgid ""
|
|
" let v2 = v.clone();\n"
|
|
" let handle = thread::spawn(move || {\n"
|
|
" let mut v2 = v2.lock().unwrap();\n"
|
|
" v2.push(10);\n"
|
|
" });"
|
|
msgstr ""
|
|
" let v2 = v.clone();\n"
|
|
" let handle = thread::spawn(move || {\n"
|
|
" let mut v2 = v2.lock().unwrap();\n"
|
|
" v2.push(10);\n"
|
|
" });"
|
|
|
|
#: src/concurrency/shared_state/example.md:38
|
|
msgid ""
|
|
" {\n"
|
|
" let mut v = v.lock().unwrap();\n"
|
|
" v.push(1000);\n"
|
|
" }"
|
|
msgstr ""
|
|
" {\n"
|
|
" let mut v = v.lock().unwrap();\n"
|
|
" v.push(1000);\n"
|
|
" }"
|
|
|
|
#: src/concurrency/shared_state/example.md:43
|
|
msgid " handle.join().unwrap();"
|
|
msgstr " handle.join().unwrap();"
|
|
|
|
msgid "Notable parts:"
|
|
msgstr "Partes notáveis:"
|
|
|
|
#: src/concurrency/shared_state/example.md:54
|
|
msgid ""
|
|
"* `v` is wrapped in both `Arc` and `Mutex`, because their concerns are orthogonal.\n"
|
|
" * Wrapping a `Mutex` in an `Arc` is a common pattern to share mutable state between threads.\n"
|
|
"* `v: Arc<_>` needs to be cloned as `v2` before it can be moved into another thread. Note `move` was added to the lambda "
|
|
"signature.\n"
|
|
"* Blocks are introduced to narrow the scope of the `LockGuard` as much as possible.\n"
|
|
"* We still need to acquire the `Mutex` to print our `Vec`."
|
|
msgstr ""
|
|
"* `v` é agrupado em ambos `Arc` e `Mutex`, porque seus interesses são ortogonais.\n"
|
|
" * Envolver um `Mutex` em um `Arc` é um padrão comum para compartilhar o estado mutável entre threads.\n"
|
|
"* `v: Arc<_>` precisa ser clonado como `v2` antes que possa ser movido para outro thread. A nota `move` foi adicionada à "
|
|
"assinatura lambda.\n"
|
|
"* Os blocos são introduzidos para restringir o escopo do `LockGuard` tanto quanto possível.\n"
|
|
"* Ainda precisamos adquirir o `Mutex` para imprimir nosso `Vec`."
|
|
|
|
#: src/concurrency/send-sync.md:1
|
|
msgid "# `Send` and `Sync`"
|
|
msgstr "# `Enviar` e `Sincronizar`"
|
|
|
|
#: src/concurrency/send-sync.md:3
|
|
msgid "How does Rust know to forbid shared access across thread? The answer is in two traits:"
|
|
msgstr "Como o Rust sabe proibir o acesso compartilhado entre threads? A resposta está em duas características:"
|
|
|
|
#: src/concurrency/send-sync.md:5
|
|
msgid ""
|
|
"* [`Send`][1]: a type `T` is `Send` if it is safe to move a `T` across a thread\n"
|
|
" boundary.\n"
|
|
"* [`Sync`][2]: a type `T` is `Sync` if it is safe to move a `&T` across a thread\n"
|
|
" boundary."
|
|
msgstr ""
|
|
"* [`Send`][1]: um tipo `T` é `Send` se for seguro mover um `T` através de um thread\n"
|
|
" fronteira.\n"
|
|
"* [`Sync`][2]: um tipo `T` é `Sync` se for seguro mover um `&T` através de um thread\n"
|
|
" fronteira."
|
|
|
|
#: src/concurrency/send-sync.md:10
|
|
msgid ""
|
|
"`Send` and `Sync` are [unsafe traits][3]. The compiler will automatically derive them for your types\n"
|
|
"as long as they only contain `Send` and `Sync` types. You can also implement them manually when you\n"
|
|
"know it is valid."
|
|
msgstr ""
|
|
"`Send` e `Sync` são [características inseguras][3]. O compilador os derivará automaticamente para seus tipos\n"
|
|
"desde que contenham apenas os tipos `Send` e `Sync`. Você também pode implementá-los manualmente quando\n"
|
|
"saiba que é válido."
|
|
|
|
#: src/concurrency/send-sync.md:14
|
|
msgid ""
|
|
"[1]: https://doc.rust-lang.org/std/marker/trait.Send.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/marker/trait.Sync.html\n"
|
|
"[3]: ../unsafe/unsafe-traits.md"
|
|
msgstr ""
|
|
"[1]: https://doc.rust-lang.org/std/marker/trait.Send.html\n"
|
|
"[2]: https://doc.rust-lang.org/std/marker/trait.Sync.html\n"
|
|
"[3]: ../unsafe/unsafe-traits.md"
|
|
|
|
#: src/concurrency/send-sync.md:20
|
|
msgid ""
|
|
"* One can think of these traits as markers that the type has certain thread-safety properties.\n"
|
|
"* They can be used in the generic constraints as normal traits.\n"
|
|
" \n"
|
|
"</details>"
|
|
msgstr ""
|
|
"* Pode-se pensar nessas características como marcadores de que o tipo possui certas ownerships de segurança de "
|
|
"encadeamento.\n"
|
|
"* Eles podem ser usados nas restrições genéricas como características normais.\n"
|
|
" \n"
|
|
"</details>"
|
|
|
|
#: src/concurrency/send-sync/send.md:1
|
|
msgid "# `Send`"
|
|
msgstr "# `Enviar`"
|
|
|
|
#: src/concurrency/send-sync/send.md:3
|
|
msgid "> A type `T` is [`Send`][1] if it is safe to move a `T` value to another thread."
|
|
msgstr "> Um tipo `T` é [`Send`][1] se for seguro mover um valor `T` para outro thread."
|
|
|
|
#: src/concurrency/send-sync/send.md:5
|
|
msgid ""
|
|
"The effect of moving ownership to another thread is that _destructors_ will run\n"
|
|
"in that thread. So the question is when you can allocate a value in one thread\n"
|
|
"and deallocate it in another."
|
|
msgstr ""
|
|
"O efeito de mover a ownership para outro thread é que os _destructors_ serão executados\n"
|
|
"nesse fio. Então a questão é quando você pode alocar um valor em um thread\n"
|
|
"e desalocá-lo em outro."
|
|
|
|
#: src/concurrency/send-sync/send.md:9
|
|
msgid "[1]: https://doc.rust-lang.org/std/marker/trait.Send.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/marker/trait.Send.html"
|
|
|
|
#: src/concurrency/send-sync/sync.md:1
|
|
msgid "# `Sync`"
|
|
msgstr "# `Sincronizar`"
|
|
|
|
#: src/concurrency/send-sync/sync.md:3
|
|
msgid ""
|
|
"> A type `T` is [`Sync`][1] if it is safe to access a `T` value from multiple\n"
|
|
"> threads at the same time."
|
|
msgstr ""
|
|
"> Um tipo `T` é [`Sync`][1] se for seguro acessar um valor `T` de vários\n"
|
|
"> tópicos ao mesmo tempo."
|
|
|
|
#: src/concurrency/send-sync/sync.md:6
|
|
msgid "More precisely, the definition is:"
|
|
msgstr "Mais precisamente, a definição é:"
|
|
|
|
#: src/concurrency/send-sync/sync.md:8
|
|
msgid "> `T` is `Sync` if and only if `&T` is `Send`"
|
|
msgstr "> `T` é `Sync` se e somente se `&T` é `Send`"
|
|
|
|
#: src/concurrency/send-sync/sync.md:10
|
|
msgid "[1]: https://doc.rust-lang.org/std/marker/trait.Sync.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/marker/trait.Sync.html"
|
|
|
|
#: src/concurrency/send-sync/sync.md:14
|
|
msgid ""
|
|
"This statement is essentially a shorthand way of saying that if a type is thread-safe for shared use, it is also thread-"
|
|
"safe to pass references of it across threads."
|
|
msgstr ""
|
|
"Essa instrução é essencialmente uma maneira abreviada de dizer que, se um tipo é thread-safe para uso compartilhado, também "
|
|
"é thread-safe passar referências a ele entre threads."
|
|
|
|
#: src/concurrency/send-sync/sync.md:16
|
|
msgid ""
|
|
"This is because if a type is Sync it means that it can be shared across multiple threads without the risk of data races or "
|
|
"other synchronization issues, so it is safe to move it to another thread. A reference to the type is also safe to move to "
|
|
"another thread, because the data it references can be accessed from any thread safely."
|
|
msgstr ""
|
|
"Isso ocorre porque, se um tipo for Sync, significa que ele pode ser compartilhado entre vários encadeamentos sem o risco de "
|
|
"corridas de dados ou outros problemas de sincronização, portanto, é seguro movê-lo para outro encadeamento. Uma referência "
|
|
"ao tipo também é segura para mover para outro thread, porque os dados a que ele faz referência podem ser acessados de "
|
|
"qualquer thread com segurança."
|
|
|
|
#: src/concurrency/send-sync/examples.md:1
|
|
msgid "# Examples"
|
|
msgstr "# Exemplos"
|
|
|
|
#: src/concurrency/send-sync/examples.md:3
|
|
msgid "## `Send + Sync`"
|
|
msgstr "## `Enviar + Sincronizar`"
|
|
|
|
#: src/concurrency/send-sync/examples.md:5
|
|
msgid "Most types you come across are `Send + Sync`:"
|
|
msgstr "A maioria dos tipos que você encontra são `Enviar + Sincronizar`:"
|
|
|
|
#: src/concurrency/send-sync/examples.md:7
|
|
msgid ""
|
|
"* `i8`, `f32`, `bool`, `char`, `&str`, ...\n"
|
|
"* `(T1, T2)`, `[T; N]`, `&[T]`, `struct { x: T }`, ...\n"
|
|
"* `String`, `Option<T>`, `Vec<T>`, `Box<T>`, ...\n"
|
|
"* `Arc<T>`: Explicitly thread-safe via atomic reference count.\n"
|
|
"* `Mutex<T>`: Explicitly thread-safe via internal locking.\n"
|
|
"* `AtomicBool`, `AtomicU8`, ...: Uses special atomic instructions."
|
|
msgstr ""
|
|
"* `i8`, `f32`, `bool`, `char`, `&str`, ...\n"
|
|
"* `(T1, T2)`, `[T; N]`, `&[T]`, `struct { x: T }`, ...\n"
|
|
"* `String`, `Option<T>`, `Vec<T>`, `Box<T>`, ...\n"
|
|
"* `Arc<T>`: Explicitamente thread-safe via contagem de referência atômica.\n"
|
|
"* `Mutex<T>`: Explicitamente thread-safe via bloqueio interno.\n"
|
|
"* `AtomicBool`, `AtomicU8`, ...: Usa instruções atômicas especiais."
|
|
|
|
#: src/concurrency/send-sync/examples.md:14
|
|
msgid ""
|
|
"The generic types are typically `Send + Sync` when the type parameters are\n"
|
|
"`Send + Sync`."
|
|
msgstr ""
|
|
"Os tipos genéricos são tipicamente `Send + Sync` quando os parâmetros de tipo são\n"
|
|
"`Enviar + Sincronizar`."
|
|
|
|
#: src/concurrency/send-sync/examples.md:17
|
|
msgid "## `Send + !Sync`"
|
|
msgstr "## `Enviar + !Sync`"
|
|
|
|
#: src/concurrency/send-sync/examples.md:19
|
|
msgid ""
|
|
"These types can be moved to other threads, but they're not thread-safe.\n"
|
|
"Typically because of interior mutability:"
|
|
msgstr ""
|
|
"Esses tipos podem ser movidos para outros encadeamentos, mas não são seguros para encadeamentos.\n"
|
|
"Normalmente por causa da mutabilage interior:"
|
|
|
|
#: src/concurrency/send-sync/examples.md:22
|
|
msgid ""
|
|
"* `mpsc::Sender<T>`\n"
|
|
"* `mpsc::Receiver<T>`\n"
|
|
"* `Cell<T>`\n"
|
|
"* `RefCell<T>`"
|
|
msgstr ""
|
|
"* `mpsc::Sender<T>`\n"
|
|
"* `mpsc::Receptor<T>`\n"
|
|
"* `Célula<T>`\n"
|
|
"* `RefCell<T>`"
|
|
|
|
#: src/concurrency/send-sync/examples.md:27
|
|
msgid "## `!Send + Sync`"
|
|
msgstr "## `!Enviar + Sincronizar`"
|
|
|
|
#: src/concurrency/send-sync/examples.md:29
|
|
msgid "These types are thread-safe, but they cannot be moved to another thread:"
|
|
msgstr "Esses tipos são thread-safe, mas não podem ser movidos para outro thread:"
|
|
|
|
#: src/concurrency/send-sync/examples.md:31
|
|
msgid ""
|
|
"* `MutexGuard<T>`: Uses OS level primitives which must be deallocated on the\n"
|
|
" thread which created them."
|
|
msgstr ""
|
|
"* `MutexGuard<T>`: Usa primitivas de nível de sistema operacional que devem ser desalocadas no\n"
|
|
" discussão que os criou."
|
|
|
|
#: src/concurrency/send-sync/examples.md:34
|
|
msgid "## `!Send + !Sync`"
|
|
msgstr "## `!Enviar + !Sincronizar`"
|
|
|
|
#: src/concurrency/send-sync/examples.md:36
|
|
msgid "These types are not thread-safe and cannot be moved to other threads:"
|
|
msgstr "Esses tipos não são thread-safe e não podem ser movidos para outros threads:"
|
|
|
|
#: src/concurrency/send-sync/examples.md:38
|
|
msgid ""
|
|
"* `Rc<T>`: each `Rc<T>` has a reference to an `RcBox<T>`, which contains a\n"
|
|
" non-atomic reference count.\n"
|
|
"* `*const T`, `*mut T`: Rust assumes raw pointers may have special\n"
|
|
" concurrency considerations."
|
|
msgstr ""
|
|
"* `Rc<T>`: cada `Rc<T>` tem uma referência a um `RcBox<T>`, que contém um\n"
|
|
" contagem de referência não atômica.\n"
|
|
"* `*const T`, `*mut T`: Rust assume que ponteiros brutos podem ter\n"
|
|
" considerações de simultaneage."
|
|
|
|
#: src/exercises/day-4/morning.md:1 src/exercises/day-4/afternoon.md:1
|
|
msgid "# Exercises"
|
|
msgstr "# Exercícios"
|
|
|
|
#: src/exercises/day-4/morning.md:3
|
|
msgid "Let us practice our new concurrency skills with"
|
|
msgstr "Vamos praticar nossas novas habilages de simultaneage com"
|
|
|
|
#: src/exercises/day-4/morning.md:5
|
|
msgid "* Dining philosophers: a classic problem in concurrency."
|
|
msgstr "* Dining philosophers: um problema clássico em concorrência."
|
|
|
|
#: src/exercises/day-4/morning.md:7
|
|
msgid ""
|
|
"* Multi-threaded link checker: a larger project where you'll use Cargo to\n"
|
|
" download dependencies and then check links in parallel."
|
|
msgstr ""
|
|
"* Verificador de link multiencadeado: um projeto maior em que você usará o Cargo para\n"
|
|
" baixe as dependências e verifique os links em paralelo."
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:1
|
|
msgid "# Dining Philosophers"
|
|
msgstr "# Dining Philosophers"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:3
|
|
msgid "The dining philosophers problem is a classic problem in concurrency:"
|
|
msgstr "O problema dos philosophers jantando é um problema clássico em concorrência:"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:5
|
|
msgid ""
|
|
"> Five philosophers dine together at the same table. Each philosopher has their\n"
|
|
"> own place at the table. There is a fork between each plate. The dish served is\n"
|
|
"> a kind of spaghetti which has to be eaten with two forks. Each philosopher can\n"
|
|
"> only alternately think and eat. Moreover, a philosopher can only eat their\n"
|
|
"> spaghetti when they have both a left and right fork. Thus two forks will only\n"
|
|
"> be available when their two nearest neighbors are thinking, not eating. After\n"
|
|
"> an individual philosopher finishes eating, they will put down both forks."
|
|
msgstr ""
|
|
"> Cinco philosophers jantam juntos na mesma mesa. Cada philosopher tem sua\n"
|
|
"> próprio lugar à mesa. Há um garfo entre cada prato. O prato servido é\n"
|
|
"> uma espécie de esparguete que se come com dois garfos. Cada philosopher pode\n"
|
|
"> só pensa e come alternadamente. Além disso, um philosopher só pode comer sua\n"
|
|
"> espaguete quando eles têm garfo esquerdo e direito. Assim, dois garfos só\n"
|
|
"> estar disponível quando seus dois vizinhos mais próximos estiverem pensando, não comendo. Depois de\n"
|
|
"> um philosopher individual termina de comer, eles abaixam os dois garfos."
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:13
|
|
msgid ""
|
|
"You will need a local [Cargo installation](../../cargo/running-locally.md) for\n"
|
|
"this exercise. Copy the code below to `src/main.rs` file, fill out the blanks,\n"
|
|
"and test that `cargo run` does not deadlock:"
|
|
msgstr ""
|
|
"Você precisará de uma [instalação do Cargo] local (../../cargo/running-locally.md) para\n"
|
|
"esse exercício. Copie o código abaixo para o arquivo `src/main.rs`, preencha os espaços em branco,\n"
|
|
"e teste se `cargo run` não trava:"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:17
|
|
msgid ""
|
|
"```rust,compile_fail\n"
|
|
"use std::sync::mpsc;\n"
|
|
"use std::sync::{Arc, Mutex};\n"
|
|
"use std::thread;\n"
|
|
"use std::time::Duration;"
|
|
msgstr ""
|
|
"```rust,compile_fail\n"
|
|
"use std::sync::mpsc;\n"
|
|
"use std::sync::{Arc, Mutex};\n"
|
|
"use std::thread;\n"
|
|
"use std::time::Duration;"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:23 src/exercises/day-4/solutions-morning.md:28
|
|
msgid "struct Fork;"
|
|
msgstr "struct Fork;"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:25
|
|
msgid ""
|
|
"struct Philosopher {\n"
|
|
" name: String,\n"
|
|
" // left_fork: ...\n"
|
|
" // right_fork: ...\n"
|
|
" // thoughts: ...\n"
|
|
"}"
|
|
msgstr ""
|
|
"struct Philosopher {\n"
|
|
" name: String,\n"
|
|
" // left_fork: ...\n"
|
|
" // right_fork: ...\n"
|
|
" // thoughts: ...\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:32
|
|
msgid ""
|
|
"impl Philosopher {\n"
|
|
" fn think(&self) {\n"
|
|
" self.thoughts\n"
|
|
" .send(format!(\"Eureka! {} has a new idea!\", &self.name))\n"
|
|
" .unwrap();\n"
|
|
" }"
|
|
msgstr ""
|
|
"impl Philosopher {\n"
|
|
" fn pense(&self) {\n"
|
|
" auto.thoughts\n"
|
|
" .send(format!(\"Eureka! {} tem uma nova ideia!\", &self.name))\n"
|
|
" .desembrulhar();\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:39
|
|
msgid ""
|
|
" fn eat(&self) {\n"
|
|
" // Pick up forks...\n"
|
|
" println!(\"{} is eating...\", &self.name);\n"
|
|
" thread::sleep(Duration::from_millis(10));\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" fn come(&self) {\n"
|
|
" // Pegar garfos...\n"
|
|
" println!(\"{} está comendo...\", &self.name);\n"
|
|
" thread::sleep(Duração::from_millis(10));\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:46 src/exercises/day-4/solutions-morning.md:60
|
|
#, fuzzy
|
|
msgid ""
|
|
"static PHILOSOPHERS: &[&str] =\n"
|
|
" &[\"Socrates\", \"Plato\", \"Aristotle\", \"Thales\", \"Pythagoras\"];"
|
|
msgstr ""
|
|
"PHILOSOPHERS statics: &[&str] =\n"
|
|
" &[\"Sócrates\", \"Platão\", \"Aristóteles\", \"Tales\", \"Pitágoras\"];"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:49
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" // Create forks"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" // Cria bifurcações"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:52
|
|
msgid " // Create philosophers"
|
|
msgstr " // Criar philosophers"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:54
|
|
msgid " // Make them think and eat"
|
|
msgstr " // Faça-os pensar e comer"
|
|
|
|
#: src/exercises/day-4/dining-philosophers.md:56
|
|
msgid ""
|
|
" // Output their thoughts\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" // Saída de seus thoughts\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:1
|
|
msgid "# Multi-threaded Link Checker"
|
|
msgstr "# Verificador de links multiencadeados"
|
|
|
|
#: src/exercises/day-4/link-checker.md:3
|
|
msgid ""
|
|
"Let us use our new knowledge to create a multi-threaded link checker. It should\n"
|
|
"start at a webpage and check that links on the page are valid. It should\n"
|
|
"recursively check other pages on the same domain and keep doing this until all\n"
|
|
"pages have been validated."
|
|
msgstr ""
|
|
"Vamos usar nosso novo conhecimento para criar um verificador de links multiencadeados. Deveria\n"
|
|
"comece em uma página da web e verifique se os links na página são válidos. Deveria\n"
|
|
"verifique recursivamente outras páginas no mesmo domínio e continue fazendo isso até que todas\n"
|
|
"as páginas foram validadas."
|
|
|
|
#: src/exercises/day-4/link-checker.md:8
|
|
msgid ""
|
|
"For this, you will need an HTTP client such as [`reqwest`][1]. Create a new\n"
|
|
"Cargo project and `reqwest` it as a dependency with:"
|
|
msgstr ""
|
|
"Para isso, você precisará de um cliente HTTP como [`reqwest`][1]. Crie um novo\n"
|
|
"Cargo project e `reqwest` como uma dependência com:"
|
|
|
|
#: src/exercises/day-4/link-checker.md:11
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ cargo new link-checker\n"
|
|
"$ cd link-checker\n"
|
|
"$ cargo add --features blocking,rustls-tls reqwest\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ cargo new verificador de link\n"
|
|
"$ cd link-checker\n"
|
|
"$ cargo add --features blocking,rustls-tls reqwest\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:17
|
|
msgid ""
|
|
"> If `cargo add` fails with `error: no such subcommand`, then please edit the\n"
|
|
"> `Cargo.toml` file by hand. Add the dependencies listed below."
|
|
msgstr ""
|
|
"> Se `cargo add` falhar com `error: no such subcommand`, edite o\n"
|
|
"> Arquivo `Cargo.toml` à mão. Adicione as dependências listadas abaixo."
|
|
|
|
#: src/exercises/day-4/link-checker.md:20
|
|
msgid "You will also need a way to find links. We can use [`scraper`][2] for that:"
|
|
msgstr "Você também precisará de uma maneira de encontrar links. Podemos usar [`scraper`][2] para isso:"
|
|
|
|
#: src/exercises/day-4/link-checker.md:22
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ cargo add scraper\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ cargo adicionar raspador\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:26
|
|
msgid ""
|
|
"Finally, we'll need some way of handling errors. We use [`thiserror`][3] for\n"
|
|
"that:"
|
|
msgstr ""
|
|
"Por fim, precisaremos de alguma forma de lidar com os erros. Usamos [`thiserror`][3] para\n"
|
|
"que:"
|
|
|
|
#: src/exercises/day-4/link-checker.md:29
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ cargo add thiserror\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ cargo adicionar este erro\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:33
|
|
msgid "The `cargo add` calls will update the `Cargo.toml` file to look like this:"
|
|
msgstr "As chamadas `cargo add` irão atualizar o arquivo `Cargo.toml` para ficar assim:"
|
|
|
|
#: src/exercises/day-4/link-checker.md:35
|
|
msgid ""
|
|
"```toml\n"
|
|
"[dependencies]\n"
|
|
"reqwest = { version = \"0.11.12\", features = [\"blocking\", \"rustls-tls\"] }\n"
|
|
"scraper = \"0.13.0\"\n"
|
|
"thiserror = \"1.0.37\"\n"
|
|
"```"
|
|
msgstr ""
|
|
"```toml\n"
|
|
"[dependências]\n"
|
|
"reqwest = { version = \"0.11.12\", features = [\"blocking\", \"rustls-tls\"] }\n"
|
|
"raspador = \"0.13.0\"\n"
|
|
"este erro = \"1.0.37\"\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:42
|
|
msgid ""
|
|
"You can now download the start page. Try with a small site such as\n"
|
|
"`https://www.google.org/`."
|
|
msgstr ""
|
|
"Agora você pode baixar a página inicial. Tente com um pequeno site como\n"
|
|
"`https://www.google.org/`."
|
|
|
|
#: src/exercises/day-4/link-checker.md:45
|
|
msgid "Your `src/main.rs` file should look something like this:"
|
|
msgstr "Seu arquivo `src/main.rs` deve se parecer com isto:"
|
|
|
|
#: src/exercises/day-4/link-checker.md:47
|
|
msgid ""
|
|
"```rust,compile_fail\n"
|
|
"use reqwest::blocking::{get, Response};\n"
|
|
"use reqwest::Url;\n"
|
|
"use scraper::{Html, Selector};\n"
|
|
"use thiserror::Error;"
|
|
msgstr ""
|
|
"```rust,compile_fail\n"
|
|
"use reqwest::blocking::{get, Response};\n"
|
|
"use reqwest::Url;\n"
|
|
"use raspador::{Html, Seletor};\n"
|
|
"use este erro::Erro;"
|
|
|
|
#: src/exercises/day-4/link-checker.md:53
|
|
msgid ""
|
|
"#[derive(Error, Debug)]\n"
|
|
"enum Error {\n"
|
|
" #[error(\"request error: {0}\")]\n"
|
|
" ReqwestError(#[from] reqwest::Error),\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[derive(erro, depuração)]\n"
|
|
"Erro de Enum {\n"
|
|
" #[error(\"erro de solicitação: {0}\")]\n"
|
|
" ReqwestError(#[from] reqwest::Error),\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-4/link-checker.md:59
|
|
msgid ""
|
|
"fn extract_links(response: Response) -> Result<Vec<Url>, Error> {\n"
|
|
" let base_url = response.url().to_owned();\n"
|
|
" let document = response.text()?;\n"
|
|
" let html = Html::parse_document(&document);\n"
|
|
" let selector = Selector::parse(\"a\").unwrap();"
|
|
msgstr ""
|
|
"fn extract_links(resposta: Resposta) -> Result<Vec<Url>, Erro> {\n"
|
|
" let base_url = response.url().to_owned();\n"
|
|
" let document = response.text()?;\n"
|
|
" let html = Html::parse_document(&document);\n"
|
|
" let selector = Selector::parse(\"a\").unwrap();"
|
|
|
|
#: src/exercises/day-4/link-checker.md:65
|
|
msgid ""
|
|
" let mut valid_urls = Vec::new();\n"
|
|
" for element in html.select(&selector) {\n"
|
|
" if let Some(href) = element.value().attr(\"href\") {\n"
|
|
" match base_url.join(href) {\n"
|
|
" Ok(url) => valid_urls.push(url),\n"
|
|
" Err(err) => {\n"
|
|
" println!(\"On {base_url}: could not parse {href:?}: {err} (ignored)\",);\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }"
|
|
msgstr ""
|
|
" let mut valid_urls = Vec::new();\n"
|
|
" for elemento em html.select(&seletor) {\n"
|
|
" if let Some(href) = element.value().attr(\"href\") {\n"
|
|
" match base_url.join(href) {\n"
|
|
" Ok(url) => valid_urls.push(url),\n"
|
|
" Err(err) => {\n"
|
|
" println!(\"Em {base_url}: não foi possível analisar {href:?}: {err} (ignorado)\",);\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-4/link-checker.md:77
|
|
msgid ""
|
|
" Ok(valid_urls)\n"
|
|
"}"
|
|
msgstr ""
|
|
" Ok(valid_urls)\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-4/link-checker.md:80
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let start_url = Url::parse(\"https://www.google.org\").unwrap();\n"
|
|
" let response = get(start_url).unwrap();\n"
|
|
" match extract_links(response) {\n"
|
|
" Ok(links) => println!(\"Links: {links:#?}\"),\n"
|
|
" Err(err) => println!(\"Could not extract links: {err:#}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let start_url = Url::parse(\"https://www.google.org\").unwrap();\n"
|
|
" let response = get(start_url).unwrap();\n"
|
|
" match extract_links(resposta) {\n"
|
|
" Ok(links) => println!(\"Links: {links:#?}\"),\n"
|
|
" Err(err) => println!(\"Não foi possível extrair links: {err:#}\"),\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:90
|
|
msgid "Run the code in `src/main.rs` with"
|
|
msgstr "Execute o código em `src/main.rs` com"
|
|
|
|
#: src/exercises/day-4/link-checker.md:92
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ cargo run\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"corrida de cargo $\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/link-checker.md:96
|
|
msgid "## Tasks"
|
|
msgstr "## Tarefas"
|
|
|
|
#: src/exercises/day-4/link-checker.md:98
|
|
msgid ""
|
|
"* Use threads to check the links in parallel: send the URLs to be checked to a\n"
|
|
" channel and let a few threads check the URLs in parallel.\n"
|
|
"* Extend this to recursively extract links from all pages on the\n"
|
|
" `www.google.org` domain. Put an upper limit of 100 pages or so so that you\n"
|
|
" don't end up being blocked by the site."
|
|
msgstr ""
|
|
"* Use threads para verificar os links em paralelo: envie as URLs a serem verificadas para um\n"
|
|
" channel e deixe alguns threads verificarem as URLs em paralelo.\n"
|
|
"* Estenda isso para extrair recursivamente links de todas as páginas no\n"
|
|
" domínio `www.google.org`. Coloque um limite máximo de 100 páginas ou mais para que você\n"
|
|
" não acabe sendo bloqueado pelo site."
|
|
|
|
#: src/exercises/day-4/link-checker.md:104
|
|
msgid ""
|
|
"[1]: https://docs.rs/reqwest/\n"
|
|
"[2]: https://docs.rs/scraper/\n"
|
|
"[3]: https://docs.rs/thiserror/"
|
|
msgstr ""
|
|
"[1]: https://docs.rs/reqwest/\n"
|
|
"[2]: https://docs.rs/scraper/\n"
|
|
"[3]: https://docs.rs/thiserror/"
|
|
|
|
#: src/android.md:1
|
|
msgid "# Android"
|
|
msgstr "#Android"
|
|
|
|
#: src/android.md:3
|
|
msgid ""
|
|
"Rust is supported for native platform development on Android. This means that\n"
|
|
"you can write new operating system services in Rust, as well as extending\n"
|
|
"existing services."
|
|
msgstr ""
|
|
"Rust tem suporte para desenvolvimento de plataforma nativa no Android. Isso significa que\n"
|
|
"você pode escrever novos serviços de sistema operacional em Rust, bem como estender\n"
|
|
"serviços existentes."
|
|
|
|
#: src/android/setup.md:1
|
|
msgid "# Setup"
|
|
msgstr "# Configurar"
|
|
|
|
#: src/android/setup.md:3
|
|
msgid ""
|
|
"We will be using an Android Virtual Device to test our code. Make sure you have\n"
|
|
"access to one or create a new one with:"
|
|
msgstr ""
|
|
"Estaremos usando um dispositivo virtual Android para testar nosso código. Assegure-se de ter\n"
|
|
"acesso a um ou crie um novo com:"
|
|
|
|
#: src/android/setup.md:6
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ source build/envsetup.sh\n"
|
|
"$ lunch aosp_cf_x86_64_phone-userdebug\n"
|
|
"$ acloud create\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ source build/envsetup.sh\n"
|
|
"$ almoço aosp_cf_x86_64_phone-userdebug\n"
|
|
"$ acloud criar\n"
|
|
"```"
|
|
|
|
#: src/android/setup.md:12
|
|
msgid ""
|
|
"Please see the [Android Developer\n"
|
|
"Codelab](https://source.android.com/docs/setup/start) for details."
|
|
msgstr ""
|
|
"Consulte o [Desenvolvedor Android\n"
|
|
"Codelab](https://source.android.com/docs/setup/start) para obter detalhes."
|
|
|
|
#: src/android/build-rules.md:1
|
|
msgid "# Build Rules"
|
|
msgstr "# Regras de construção"
|
|
|
|
#: src/android/build-rules.md:3
|
|
msgid "The Android build system (Soong) supports Rust via a number of modules:"
|
|
msgstr "O sistema de compilação do Android (Soong) oferece suporte ao Rust por meio de vários módulos:"
|
|
|
|
#: src/android/build-rules.md:5
|
|
msgid ""
|
|
"| Module Type | Description |\n"
|
|
"|-------------------|----------------------------------------------------------------------------------------------------|\n"
|
|
"| `rust_binary` | Produces a Rust binary. |\n"
|
|
"| `rust_library` | Produces a Rust library, and provides both `rlib` and `dylib` variants. |\n"
|
|
"| `rust_ffi` | Produces a Rust C library usable by `cc` modules, and provides both static and shared variants. |\n"
|
|
"| `rust_proc_macro` | Produces a `proc-macro` Rust library. These are analogous to compiler plugins. |\n"
|
|
"| `rust_test` | Produces a Rust test binary that uses the standard Rust test harness. |\n"
|
|
"| `rust_fuzz` | Produces a Rust fuzz binary leveraging `libfuzzer`. |\n"
|
|
"| `rust_protobuf` | Generates source and produces a Rust library that provides an interface for a particular protobuf. |\n"
|
|
"| `rust_bindgen` | Generates source and produces a Rust library containing Rust bindings to C libraries. |"
|
|
msgstr ""
|
|
"| Tipo de módulo | Descrição |\n"
|
|
"|-------------------|---------------------------- -------------------------------------------------- "
|
|
"---------------------|\n"
|
|
"| `rust_binary` | Produz um binário Rust. |\n"
|
|
"| `rust_library` | Produz uma biblioteca Rust e fornece as variantes `rlib` e `dylib`. |\n"
|
|
"| `rust_ffi` | Produz uma biblioteca Rust C utilizável por módulos `cc` e fornece variantes estáticas e compartilhadas. |\n"
|
|
"| `rust_proc_macro` | Produz uma biblioteca Rust `proc-macro`. Estes são análogos aos plugins do compilador. |\n"
|
|
"| `rust_test` | Produz um binário de teste Rust que usa o equipamento de teste Rust padrão. |\n"
|
|
"| `rust_fuzz` | Produz um binário Rust fuzz aproveitando `libfuzzer`. |\n"
|
|
"| `rust_protobuf` | Gera o código-fonte e produz uma biblioteca Rust que fornece uma interface para um protobuf específico. "
|
|
"|\n"
|
|
"| `rust_bindgen` | Gera fonte e produz uma biblioteca Rust contendo ligações Rust para bibliotecas C. |"
|
|
|
|
#: src/android/build-rules.md:16
|
|
msgid "We will look at `rust_binary` and `rust_library` next."
|
|
msgstr "Veremos `rust_binary` e `rust_library` a seguir."
|
|
|
|
#: src/android/build-rules/binary.md:1
|
|
msgid "# Rust Binaries"
|
|
msgstr "# Binários Rust"
|
|
|
|
#: src/android/build-rules/binary.md:3
|
|
msgid ""
|
|
"Let us start with a simple application. At the root of an AOSP checkout, create\n"
|
|
"the following files:"
|
|
msgstr ""
|
|
"Vamos começar com um aplicativo simples. Na raiz de um checkout AOSP, crie\n"
|
|
"os seguintes arquivos:"
|
|
|
|
#: src/android/build-rules/binary.md:6 src/android/build-rules/library.md:13
|
|
msgid "_hello_rust/Android.bp_:"
|
|
msgstr "_hello_rust/Android.bp_:"
|
|
|
|
#: src/android/build-rules/binary.md:8
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"hello_rust\",\n"
|
|
" crate_name: \"hello_rust\",\n"
|
|
" srcs: [\"src/main.rs\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_binário {\n"
|
|
" name: \"olá_rust\",\n"
|
|
" crate_name: \"hello_rust\",\n"
|
|
" srcs: [\"src/main.rs\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/build-rules/binary.md:16 src/android/build-rules/library.md:34
|
|
msgid "_hello_rust/src/main.rs_:"
|
|
msgstr "_hello_rust/src/main.rs_:"
|
|
|
|
#: src/android/build-rules/binary.md:18
|
|
msgid ""
|
|
"```rust\n"
|
|
"//! Rust demo."
|
|
msgstr ""
|
|
"```rust\n"
|
|
"//! Demonstração de rust."
|
|
|
|
#: src/android/build-rules/binary.md:21
|
|
msgid ""
|
|
"/// Prints a greeting to standard output.\n"
|
|
"fn main() {\n"
|
|
" println!(\"Hello from Rust!\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Imprime uma saudação na saída padrão.\n"
|
|
"fn main() {\n"
|
|
" println!(\"Olá do Rust!\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/build-rules/binary.md:27
|
|
msgid "You can now build, push, and run the binary:"
|
|
msgstr "Agora você pode compilar, enviar e executar o binário:"
|
|
|
|
#: src/android/build-rules/binary.md:29
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m hello_rust\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/hello_rust /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/hello_rust\n"
|
|
"Hello from Rust!\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m olá_rust\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/hello_rust /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/hello_rust\n"
|
|
"Saudações da Rust!\n"
|
|
"```"
|
|
|
|
#: src/android/build-rules/library.md:1
|
|
msgid "# Rust Libraries"
|
|
msgstr "# Bibliotecas de rust"
|
|
|
|
#: src/android/build-rules/library.md:3
|
|
msgid "You use `rust_library` to create a new Rust library for Android."
|
|
msgstr "Você usa `rust_library` para criar uma nova biblioteca Rust para Android."
|
|
|
|
#: src/android/build-rules/library.md:5
|
|
msgid "Here we declare a dependency on two libraries:"
|
|
msgstr "Aqui declaramos uma dependência em duas bibliotecas:"
|
|
|
|
#: src/android/build-rules/library.md:7
|
|
#, fuzzy
|
|
msgid ""
|
|
"* `libgreeting`, which we define below,\n"
|
|
"* `libtextwrap`, which is a crate already vendored in\n"
|
|
" [`external/rust/crates/`][crates]."
|
|
msgstr ""
|
|
"* `libgreeting`, que definimos abaixo,\n"
|
|
"* `libtextwrap`, que é uma caixa já vendida em\n"
|
|
" [`externo/rust/caixas/`][caixas]."
|
|
|
|
#: src/android/build-rules/library.md:11
|
|
#, fuzzy
|
|
msgid "[crates]: https://cs.android.com/android/platform/superproject/+/master:external/rust/crates/"
|
|
msgstr "[caixas]: https://cs.android.com/android/platform/superproject/+/master:external/rust/crates/"
|
|
|
|
#: src/android/build-rules/library.md:15
|
|
#, fuzzy
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"hello_rust_with_dep\",\n"
|
|
" crate_name: \"hello_rust_with_dep\",\n"
|
|
" srcs: [\"src/main.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"libgreetings\",\n"
|
|
" \"libtextwrap\",\n"
|
|
" ],\n"
|
|
" prefer_rlib: true,\n"
|
|
"}"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"hello_rust_with_dep\",\n"
|
|
" crate_name: \"hello_rust_with_dep\",\n"
|
|
" srcs: [\"src/main.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"libgreetings\",\n"
|
|
" \"libtextwrap\",\n"
|
|
" ],\n"
|
|
" prefer_rlib: true,\n"
|
|
"}"
|
|
|
|
#: src/android/build-rules/library.md:27
|
|
msgid ""
|
|
"rust_library {\n"
|
|
" name: \"libgreetings\",\n"
|
|
" crate_name: \"greetings\",\n"
|
|
" srcs: [\"src/lib.rs\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"rust_library {\n"
|
|
" name: \"libgreetings\",\n"
|
|
" crate_name: \"greetings\",\n"
|
|
" srcs: [\"src/lib.rs\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/build-rules/library.md:36
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"//! Rust demo."
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"//! Demonstração de rust."
|
|
|
|
#: src/android/build-rules/library.md:39
|
|
msgid ""
|
|
"use greetings::greeting;\n"
|
|
"use textwrap::fill;"
|
|
msgstr ""
|
|
"use greetings::greeting;\n"
|
|
"use textwrap::fill;"
|
|
|
|
#: src/android/build-rules/library.md:42
|
|
msgid ""
|
|
"/// Prints a greeting to standard output.\n"
|
|
"fn main() {\n"
|
|
" println!(\"{}\", fill(&greeting(\"Bob\"), 24));\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Imprime uma saudação na saída padrão.\n"
|
|
"fn main() {\n"
|
|
" println!(\"{}\", fill(&greeting(\"Bob\"), 24));\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/build-rules/library.md:48
|
|
msgid "_hello_rust/src/lib.rs_:"
|
|
msgstr "_hello_rust/src/lib.rs_:"
|
|
|
|
#: src/android/build-rules/library.md:50
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"//! Greeting library."
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"//! Saudação biblioteca."
|
|
|
|
#: src/android/build-rules/library.md:53
|
|
msgid ""
|
|
"/// Greet `name`.\n"
|
|
"pub fn greeting(name: &str) -> String {\n"
|
|
" format!(\"Hello {name}, it is very nice to meet you!\")\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Saudação `name`.\n"
|
|
"pub fn saudação(name: &str) -> String {\n"
|
|
" format!(\"Olá {name}, prazer em conhecê-lo!\")\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/build-rules/library.md:59
|
|
msgid "You build, push, and run the binary like before:"
|
|
msgstr "Você constrói, envia e executa o binário como antes:"
|
|
|
|
#: src/android/build-rules/library.md:61
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m hello_rust_with_dep\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/hello_rust_with_dep /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/hello_rust_with_dep\n"
|
|
"Hello Bob, it is very\n"
|
|
"nice to meet you!\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m hello_rust_with_dep\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/hello_rust_with_dep /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/hello_rust_with_dep\n"
|
|
"Olá Bob, é muito\n"
|
|
"prazer em conhecê-lo!\n"
|
|
"```"
|
|
|
|
#: src/android/aidl.md:1
|
|
msgid "# AIDL"
|
|
msgstr "#AIDL"
|
|
|
|
#: src/android/aidl.md:3
|
|
msgid ""
|
|
"The [Android Interface Definition Language\n"
|
|
"(AIDL)](https://developer.android.com/guide/components/aidl) is supported in Rust:"
|
|
msgstr ""
|
|
"A [Linguagem de Definição de Interface Android\n"
|
|
"(AIDL)](https://developer.android.com/guide/components/aidl) é compatível com Rust:"
|
|
|
|
#: src/android/aidl.md:6
|
|
msgid ""
|
|
"* Rust code can call existing AIDL servers,\n"
|
|
"* You can create new AIDL servers in Rust."
|
|
msgstr ""
|
|
"* O código Rust pode chamar servidores AIDL existentes,\n"
|
|
"* Você pode criar novos servidores AIDL em Rust."
|
|
|
|
#: src/android/aidl/interface.md:1
|
|
msgid "# AIDL Interfaces"
|
|
msgstr "# Interfaces AIDL"
|
|
|
|
#: src/android/aidl/interface.md:3
|
|
msgid "You declare the API of your service using an AIDL interface:"
|
|
msgstr "Você declara a API do seu serviço usando uma interface AIDL:"
|
|
|
|
#: src/android/aidl/interface.md:5
|
|
msgid "*birthday_service/aidl/com/example/birthdayservice/IBirthdayService.aidl*:"
|
|
msgstr "*birthday_service/aidl/com/example/birthdayservice/IBirthdayService.aidl*:"
|
|
|
|
#: src/android/aidl/interface.md:7 src/android/aidl/changing.md:6
|
|
msgid ""
|
|
"```java\n"
|
|
"package com.example.birthdayservice;"
|
|
msgstr ""
|
|
"```java\n"
|
|
"package com.example.birthdayservice;"
|
|
|
|
#: src/android/aidl/interface.md:10
|
|
msgid ""
|
|
"/** Birthday service interface. */\n"
|
|
"interface IBirthdayService {\n"
|
|
" /** Generate a Happy Birthday message. */\n"
|
|
" String wishHappyBirthday(String name, int years);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/** Interface de serviço de aniversário. */\n"
|
|
"interface IBirthdayService {\n"
|
|
" /** Gera uma mensagem de feliz aniversário. */\n"
|
|
" String desejoFelizAniversário(String name, int anos);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/interface.md:17
|
|
msgid "*birthday_service/aidl/Android.bp*:"
|
|
msgstr "*aniversário_service/aidl/Android.bp*:"
|
|
|
|
#: src/android/aidl/interface.md:19
|
|
msgid ""
|
|
"```javascript\n"
|
|
"aidl_interface {\n"
|
|
" name: \"com.example.birthdayservice\",\n"
|
|
" srcs: [\"com/example/birthdayservice/*.aidl\"],\n"
|
|
" unstable: true,\n"
|
|
" backend: {\n"
|
|
" rust: { // Rust is not enabled by default\n"
|
|
" enabled: true,\n"
|
|
" },\n"
|
|
" },\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"aidl_interface {\n"
|
|
" name: \"com.example.birthdayservice\",\n"
|
|
" srcs: [\"com/example/birthdayservice/*.aidl\"],\n"
|
|
" instável: true,\n"
|
|
" Processo interno: {\n"
|
|
" rust: { // Rust não está ativado por padrão\n"
|
|
" ativado: true,\n"
|
|
" },\n"
|
|
" },\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/interface.md:32
|
|
msgid ""
|
|
"Add `vendor_available: true` if your AIDL file is used by a binary in the vendor\n"
|
|
"partition."
|
|
msgstr ""
|
|
"Adicione `vendor_available: true` se seu arquivo AIDL for usado por um binário no fornecedor\n"
|
|
"partição."
|
|
|
|
#: src/android/aidl/implementation.md:1
|
|
msgid "# Service Implementation"
|
|
msgstr "# Implementação de serviço"
|
|
|
|
#: src/android/aidl/implementation.md:3
|
|
msgid "We can now implement the AIDL service:"
|
|
msgstr "Agora podemos implementar o serviço AIDL:"
|
|
|
|
#: src/android/aidl/implementation.md:5
|
|
msgid "*birthday_service/src/lib.rs*:"
|
|
msgstr "*aniversário_serviço/src/lib.rs*:"
|
|
|
|
#: src/android/aidl/implementation.md:7
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"//! Implementation of the `IBirthdayService` AIDL interface.\n"
|
|
"use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::IBirthdayService;\n"
|
|
"use com_example_birthdayservice::binder;"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"//! Implementação da interface AIDL `IBirthdayService`.\n"
|
|
"use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::IBirthdayService;\n"
|
|
"use com_example_birthdayservice::binder;"
|
|
|
|
#: src/android/aidl/implementation.md:12
|
|
msgid ""
|
|
"/// The `IBirthdayService` implementation.\n"
|
|
"pub struct BirthdayService;"
|
|
msgstr ""
|
|
"/// A implementação `IBirthdayService`.\n"
|
|
"pub struct BirthdayService;"
|
|
|
|
#: src/android/aidl/implementation.md:15
|
|
msgid "impl binder::Interface for BirthdayService {}"
|
|
msgstr "impl binder::Interface para BirthdayService {}"
|
|
|
|
#: src/android/aidl/implementation.md:17
|
|
msgid ""
|
|
"impl IBirthdayService for BirthdayService {\n"
|
|
" fn wishHappyBirthday(&self, name: &str, years: i32) -> binder::Result<String> {\n"
|
|
" Ok(format!(\n"
|
|
" \"Happy Birthday {name}, congratulations with the {years} years!\"\n"
|
|
" ))\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"impl IBirthdayService for BirthdayService {\n"
|
|
" fn wishHappyBirthday(&self, name: &str, years: i32) -> binder::Result<String> {\n"
|
|
" Ok(format!(\n"
|
|
" \"Feliz Aniversário {name}, parabéns pelos {years} anos!\"\n"
|
|
" ))\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/implementation.md:26 src/android/aidl/server.md:28 src/android/aidl/client.md:37
|
|
msgid "*birthday_service/Android.bp*:"
|
|
msgstr "*aniversário_serviço/Android.bp*:"
|
|
|
|
#: src/android/aidl/implementation.md:28
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_library {\n"
|
|
" name: \"libbirthdayservice\",\n"
|
|
" srcs: [\"src/lib.rs\"],\n"
|
|
" crate_name: \"birthdayservice\",\n"
|
|
" rustlibs: [\n"
|
|
" \"com.example.birthdayservice-rust\",\n"
|
|
" \"libbinder_rs\",\n"
|
|
" ],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_library {\n"
|
|
" name: \"libbirthdayservice\",\n"
|
|
" srcs: [\"src/lib.rs\"],\n"
|
|
" crate_name: \"aniversário\",\n"
|
|
" rustlibs: [\n"
|
|
" \"com.example.birthdayservice-rust\",\n"
|
|
" \"libbinder_rs\",\n"
|
|
" ],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/server.md:1
|
|
msgid "# AIDL Server"
|
|
msgstr "# Servidor AIDL"
|
|
|
|
#: src/android/aidl/server.md:3
|
|
msgid "Finally, we can create a server which exposes the service:"
|
|
msgstr "Finalmente, podemos criar um servidor que exponha o serviço:"
|
|
|
|
#: src/android/aidl/server.md:5
|
|
msgid "*birthday_service/src/server.rs*:"
|
|
msgstr "*aniversário_serviço/src/servidor.rs*:"
|
|
|
|
#: src/android/aidl/server.md:7
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"//! Birthday service.\n"
|
|
"use birthdayservice::BirthdayService;\n"
|
|
"use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::BnBirthdayService;\n"
|
|
"use com_example_birthdayservice::binder;"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"//! Serviço de aniversário.\n"
|
|
"use birthdayservice::BirthdayService;\n"
|
|
"use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::BnBirthdayService;\n"
|
|
"use com_example_birthdayservice::binder;"
|
|
|
|
#: src/android/aidl/server.md:13 src/android/aidl/client.md:12
|
|
msgid "const SERVICE_IDENTIFIER: &str = \"birthdayservice\";"
|
|
msgstr "const SERVICE_IDENTIFIER: &str = \"aniversário\";"
|
|
|
|
#: src/android/aidl/server.md:15
|
|
msgid ""
|
|
"/// Entry point for birthday service.\n"
|
|
"fn main() {\n"
|
|
" let birthday_service = BirthdayService;\n"
|
|
" let birthday_service_binder = BnBirthdayService::new_binder(\n"
|
|
" birthday_service,\n"
|
|
" binder::BinderFeatures::default(),\n"
|
|
" );\n"
|
|
" binder::add_service(SERVICE_IDENTIFIER, birthday_service_binder.as_binder())\n"
|
|
" .expect(\"Failed to register service\");\n"
|
|
" binder::ProcessState::join_thread_pool()\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Point de entrada para serviço de aniversário.\n"
|
|
"fn main() {\n"
|
|
" let serviço_aniversário = ServiçoAniversário;\n"
|
|
" let birthday_service_binder = BnBirthdayService::new_binder(\n"
|
|
" aniversário_serviço,\n"
|
|
" binder::BinderFeatures::default(),\n"
|
|
" );\n"
|
|
" binder::add_service(SERVICE_IDENTIFIER, birthday_service_binder.as_binder())\n"
|
|
" .expect(\"Falha ao registrar o serviço\");\n"
|
|
" binder::ProcessState::join_thread_pool()\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/server.md:30
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"birthday_server\",\n"
|
|
" crate_name: \"birthday_server\",\n"
|
|
" srcs: [\"src/server.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"com.example.birthdayservice-rust\",\n"
|
|
" \"libbinder_rs\",\n"
|
|
" \"libbirthdayservice\",\n"
|
|
" ],\n"
|
|
" prefer_rlib: true,\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_binário {\n"
|
|
" name: \"aniversário_servidor\",\n"
|
|
" crate_name: \"aniversário_servidor\",\n"
|
|
" srcs: [\"src/servidor.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"com.example.birthdayservice-rust\",\n"
|
|
" \"libbinder_rs\",\n"
|
|
" \"libbirthdayservice\",\n"
|
|
" ],\n"
|
|
" prefere_rlib: true,\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/deploy.md:1
|
|
msgid "# Deploy"
|
|
msgstr "# Implantar"
|
|
|
|
#: src/android/aidl/deploy.md:3
|
|
msgid "We can now build, push, and start the service:"
|
|
msgstr "Agora podemos construir, enviar e iniciar o serviço:"
|
|
|
|
#: src/android/aidl/deploy.md:5
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m birthday_server\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/birthday_server /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/birthday_server\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m aniversário_servidor\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/birthday_server /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/birthday_server\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/deploy.md:11
|
|
msgid "In another terminal, check that the service runs:"
|
|
msgstr "Em outro terminal, verifique se o serviço é executado:"
|
|
|
|
#: src/android/aidl/deploy.md:13
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ adb shell service check birthdayservice\n"
|
|
"Service birthdayservice: found\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ adb shell service check birthdayservice\n"
|
|
"Serviço de aniversário: encontrado\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/deploy.md:18
|
|
msgid "You can also call the service with `service call`:"
|
|
msgstr "Você também pode chamar o serviço com `service call`:"
|
|
|
|
#: src/android/aidl/deploy.md:20
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ $ adb shell service call birthdayservice 1 s16 Bob i32 24\n"
|
|
"Result: Parcel(\n"
|
|
" 0x00000000: 00000000 00000036 00610048 00700070 '....6...H.a.p.p.'\n"
|
|
" 0x00000010: 00200079 00690042 00740072 00640068 'y. .B.i.r.t.h.d.'\n"
|
|
" 0x00000020: 00790061 00420020 0062006f 0020002c 'a.y. .B.o.b.,. .'\n"
|
|
" 0x00000030: 006f0063 0067006e 00610072 00750074 'c.o.n.g.r.a.t.u.'\n"
|
|
" 0x00000040: 0061006c 00690074 006e006f 00200073 'l.a.t.i.o.n.s. .'\n"
|
|
" 0x00000050: 00690077 00680074 00740020 00650068 'w.i.t.h. .t.h.e.'\n"
|
|
" 0x00000060: 00320020 00200034 00650079 00720061 ' .2.4. .y.e.a.r.'\n"
|
|
" 0x00000070: 00210073 00000000 's.!..... ')\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ $ adb shell service call birthdayservice 1 s16 Bob i32 24\n"
|
|
"Result: Parcel(\n"
|
|
" 0x00000000: 00000000 00000036 00610048 00700070 '....6...H.a.p.p.'\n"
|
|
" 0x00000010: 00200079 00690042 00740072 00640068 'y. .B.i.r.t.h.d.'\n"
|
|
" 0x00000020: 00790061 00420020 0062006f 0020002c 'a.y. .Prumo.,. .'\n"
|
|
" 0x00000030: 006f0063 0067006e 00610072 00750074 'c.o.n.g.r.a.t.u.'\n"
|
|
" 0x00000040: 0061006c 00690074 006e006f 00200073 'l.a.t.i.o.n.s. .'\n"
|
|
" 0x00000050: 00690077 00680074 00740020 00650068 'w.i.t.h. .a.'\n"
|
|
" 0x00000060: 00320020 00200034 00650079 00720061 ' .2.4. .y.e.a.r.'\n"
|
|
" 0x00000070: 00210073 00000000 's.!..... ')\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/client.md:1
|
|
msgid "# AIDL Client"
|
|
msgstr "# Cliente AIDL"
|
|
|
|
#: src/android/aidl/client.md:3
|
|
msgid "Finally, we can create a Rust client for our new service."
|
|
msgstr "Por fim, podemos criar um cliente Rust para nosso novo serviço."
|
|
|
|
#: src/android/aidl/client.md:5
|
|
msgid "*birthday_service/src/client.rs*:"
|
|
msgstr "*aniversário_service/src/client.rs*:"
|
|
|
|
#: src/android/aidl/client.md:7
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"//! Birthday service.\n"
|
|
"use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::IBirthdayService;\n"
|
|
"use com_example_birthdayservice::binder;"
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"//! Serviço de aniversário.\n"
|
|
"use com_example_birthdayservice::aidl::com::example::birthdayservice::IBirthdayService::IBirthdayService;\n"
|
|
"use com_example_birthdayservice::binder;"
|
|
|
|
#: src/android/aidl/client.md:14
|
|
msgid ""
|
|
"/// Connect to the BirthdayService.\n"
|
|
"pub fn connect() -> Result<binder::Strong<dyn IBirthdayService>, binder::StatusCode> {\n"
|
|
" binder::get_interface(SERVICE_IDENTIFIER)\n"
|
|
"}"
|
|
msgstr ""
|
|
"/// Conecte-se ao Serviço de Aniversário.\n"
|
|
"pub fn connect() -> Result<binder::Strong<dyn IBirthdayService>, binder::StatusCode> {\n"
|
|
" binder::get_interface(SERVICE_IDENTIFIER)\n"
|
|
"}"
|
|
|
|
#: src/android/aidl/client.md:19
|
|
msgid ""
|
|
"/// Call the birthday service.\n"
|
|
"fn main() -> Result<(), binder::Status> {\n"
|
|
" let name = std::env::args()\n"
|
|
" .nth(1)\n"
|
|
" .unwrap_or_else(|| String::from(\"Bob\"));\n"
|
|
" let years = std::env::args()\n"
|
|
" .nth(2)\n"
|
|
" .and_then(|arg| arg.parse::<i32>().ok())\n"
|
|
" .unwrap_or(42);"
|
|
msgstr ""
|
|
"/// Ligue para o serviço de aniversário.\n"
|
|
"fn main() -> Result<(), binder::Status> {\n"
|
|
" let name = std::env::args()\n"
|
|
" .nth(1)\n"
|
|
" .unwrap_or_else(|| String::from(\"Bob\"));\n"
|
|
" let years = std::env::args()\n"
|
|
" .nth(2)\n"
|
|
" .and_then(|arg| arg.parse::<i32>().ok())\n"
|
|
" .unwrap_or(42);"
|
|
|
|
#: src/android/aidl/client.md:29
|
|
msgid ""
|
|
" binder::ProcessState::start_thread_pool();\n"
|
|
" let service = connect().expect(\"Failed to connect to BirthdayService\");\n"
|
|
" let msg = service.wishHappyBirthday(&name, years)?;\n"
|
|
" println!(\"{msg}\");\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" binder::ProcessState::start_thread_pool();\n"
|
|
" let service = connect().expect(\"Falha ao conectar ao BirthdayService\");\n"
|
|
" let msg = service.wishHappyBirthday(&name, years)?;\n"
|
|
" println!(\"{msg}\");\n"
|
|
" Ok(())\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/client.md:39
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"birthday_client\",\n"
|
|
" crate_name: \"birthday_client\",\n"
|
|
" srcs: [\"src/client.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"com.example.birthdayservice-rust\",\n"
|
|
" \"libbinder_rs\",\n"
|
|
" ],\n"
|
|
" prefer_rlib: true,\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_binário {\n"
|
|
" name: \"aniversario_cliente\",\n"
|
|
" crate_name: \"aniversário_cliente\",\n"
|
|
" srcs: [\"src/client.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"com.example.birthdayservice-rust\",\n"
|
|
" \"libbinder_rs\",\n"
|
|
" ],\n"
|
|
" prefere_rlib: true,\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/client.md:52
|
|
msgid "Notice that the client does not depend on `libbirthdayservice`."
|
|
msgstr "Observe que o cliente não depende de `libbirthdayservice`."
|
|
|
|
#: src/android/aidl/client.md:54
|
|
msgid "Build, push, and run the client on your device:"
|
|
msgstr "Crie, envie e execute o cliente em seu dispositivo:"
|
|
|
|
#: src/android/aidl/client.md:56
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m birthday_client\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/birthday_client /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/birthday_client Charlie 60\n"
|
|
"Happy Birthday Charlie, congratulations with the 60 years!\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m aniversário_cliente\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/birthday_client /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/birthday_client Charlie 60\n"
|
|
"Parabéns Charlie, parabéns pelos 60 anos!\n"
|
|
"```"
|
|
|
|
#: src/android/aidl/changing.md:1
|
|
msgid "# Changing API"
|
|
msgstr "# Alterando API"
|
|
|
|
#: src/android/aidl/changing.md:3
|
|
msgid ""
|
|
"Let us extend the API with more functionality: we want to let clients specify a\n"
|
|
"list of lines for the birthday card:"
|
|
msgstr ""
|
|
"Vamos estender a API com mais funcionalage: queremos permitir que os clientes especifiquem um\n"
|
|
"lista de linhas para o cartão de aniversário:"
|
|
|
|
#: src/android/aidl/changing.md:9
|
|
msgid ""
|
|
"/** Birthday service interface. */\n"
|
|
"interface IBirthdayService {\n"
|
|
" /** Generate a Happy Birthday message. */\n"
|
|
" String wishHappyBirthday(String name, int years, in String[] text);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/** Interface de serviço de aniversário. */\n"
|
|
"interface IBirthdayService {\n"
|
|
" /** Gera uma mensagem de feliz aniversário. */\n"
|
|
" String wishHappyBirthday(String name, int years, in String[] text);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/logging.md:1
|
|
msgid "# Logging"
|
|
msgstr "# Exploração madeireira"
|
|
|
|
#: src/android/logging.md:3
|
|
msgid ""
|
|
"You should use the `log` crate to automatically log to `logcat` (on-device) or\n"
|
|
"`stdout` (on-host):"
|
|
msgstr ""
|
|
"Você deve usar a caixa `log` para logar automaticamente no `logcat` (on-device dispositivo) ou\n"
|
|
"`stdout` (on-host):"
|
|
|
|
#: src/android/logging.md:6
|
|
msgid "_hello_rust_logs/Android.bp_:"
|
|
msgstr "_hello_rust_logs/Android.bp_:"
|
|
|
|
#: src/android/logging.md:8
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"hello_rust_logs\",\n"
|
|
" crate_name: \"hello_rust_logs\",\n"
|
|
" srcs: [\"src/main.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"liblog_rust\",\n"
|
|
" \"liblogger\",\n"
|
|
" ],\n"
|
|
" prefer_rlib: true,\n"
|
|
" host_supported: true,\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_binário {\n"
|
|
" name: \"hello_rust_logs\",\n"
|
|
" crate_name: \"hello_rust_logs\",\n"
|
|
" srcs: [\"src/main.rs\"],\n"
|
|
" rustlibs: [\n"
|
|
" \"liblog_rust\",\n"
|
|
" \"blogueiro\",\n"
|
|
" ],\n"
|
|
" prefere_rlib: true,\n"
|
|
" host_supported: true,\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/logging.md:22
|
|
msgid "_hello_rust_logs/src/main.rs_:"
|
|
msgstr "_hello_rust_logs/src/main.rs_:"
|
|
|
|
#: src/android/logging.md:24
|
|
msgid ""
|
|
"```rust,ignore\n"
|
|
"//! Rust logging demo."
|
|
msgstr ""
|
|
"```rust, ignore\n"
|
|
"//! Demonstração de registro de rust."
|
|
|
|
#: src/android/logging.md:27
|
|
msgid "use log::{debug, error, info};"
|
|
msgstr "use log::{debug, error, info};"
|
|
|
|
#: src/android/logging.md:29
|
|
msgid ""
|
|
"/// Logs a greeting.\n"
|
|
"fn main() {\n"
|
|
" logger::init(\n"
|
|
" logger::Config::default()\n"
|
|
" .with_tag_on_device(\"rust\")\n"
|
|
" .with_min_level(log::Level::Trace),\n"
|
|
" );\n"
|
|
" debug!(\"Starting program.\");\n"
|
|
" info!(\"Things are going fine.\");\n"
|
|
" error!(\"Something went wrong!\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Registra uma saudação.\n"
|
|
"fn main() {\n"
|
|
" logger::init(\n"
|
|
" logger::Config::default()\n"
|
|
" .with_tag_on_device(\"rust\")\n"
|
|
" .with_min_level(log::Level::Trace),\n"
|
|
" );\n"
|
|
" debug!(\"Iniciando programa.\");\n"
|
|
" info!(\"As coisas estão indo bem.\");\n"
|
|
" erro!(\"Algo deu errado!\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/logging.md:42 src/android/interoperability/with-c/bindgen.md:98 src/android/interoperability/with-c/rust.md:73
|
|
msgid "Build, push, and run the binary on your device:"
|
|
msgstr "Crie, envie e execute o binário em seu dispositivo:"
|
|
|
|
#: src/android/logging.md:44
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m hello_rust_logs\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/hello_rust_logs /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/hello_rust_logs\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m hello_rust_logs\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/hello_rust_logs /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/hello_rust_logs\n"
|
|
"```"
|
|
|
|
#: src/android/logging.md:50
|
|
msgid "The logs show up in `adb logcat`:"
|
|
msgstr "Os logs aparecem em `adb logcat`:"
|
|
|
|
#: src/android/logging.md:52
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ adb logcat -s rust\n"
|
|
"09-08 08:38:32.454 2420 2420 D rust: hello_rust_logs: Starting program.\n"
|
|
"09-08 08:38:32.454 2420 2420 I rust: hello_rust_logs: Things are going fine.\n"
|
|
"09-08 08:38:32.454 2420 2420 E rust: hello_rust_logs: Something went wrong!\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ adb logcat -s rust\n"
|
|
"09-08 08:38:32.454 2420 2420 D rust: hello_rust_logs: Iniciando o programa.\n"
|
|
"09-08 08:38:32.454 2420 2420 I rust: hello_rust_logs: As coisas estão indo bem.\n"
|
|
"09-08 08:38:32.454 2420 2420 E rust: hello_rust_logs: Algo deu errado!\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability.md:1
|
|
msgid "# Interoperability"
|
|
msgstr "# Interoperabilage"
|
|
|
|
#: src/android/interoperability.md:3
|
|
msgid ""
|
|
"Rust has excellent support for interoperability with other languages. This means\n"
|
|
"that you can:"
|
|
msgstr ""
|
|
"Rust tem excelente suporte para interoperabilage com outras linguagens. Isso significa\n"
|
|
"isso você pode:"
|
|
|
|
#: src/android/interoperability.md:6
|
|
msgid ""
|
|
"* Call Rust functions from other languages.\n"
|
|
"* Call functions written in other languages from Rust."
|
|
msgstr ""
|
|
"* Chame funções Rust de outros idiomas.\n"
|
|
"* Chama funções escritas em outras linguagens do Rust."
|
|
|
|
#: src/android/interoperability.md:9
|
|
msgid ""
|
|
"When you call functions in a foreign language we say that you're using a\n"
|
|
"_foreign function interface_, also known as FFI."
|
|
msgstr ""
|
|
"Quando você chama funções em um idioma estrangeiro, dizemos que você está usando um\n"
|
|
"_interface de função externa_, também conhecida como FFI."
|
|
|
|
#: src/android/interoperability/with-c.md:1
|
|
msgid "# Interoperability with C"
|
|
msgstr "# Interoperabilage com C"
|
|
|
|
#: src/android/interoperability/with-c.md:3
|
|
msgid ""
|
|
"Rust has full support for linking object files with a C calling convention.\n"
|
|
"Similarly, you can export Rust functions and call them from C."
|
|
msgstr ""
|
|
"Rust tem suporte completo para vincular arquivos de objeto com uma convenção de chamada C.\n"
|
|
"Da mesma forma, você pode exportar funções Rust e chamá-las de C."
|
|
|
|
#: src/android/interoperability/with-c.md:6
|
|
msgid "You can do it by hand if you want:"
|
|
msgstr "Você pode fazer isso manualmente se quiser:"
|
|
|
|
#: src/android/interoperability/with-c.md:8
|
|
msgid ""
|
|
"```rust\n"
|
|
"extern \"C\" {\n"
|
|
" fn abs(x: i32) -> i32;\n"
|
|
"}"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"extern \"C\" {\n"
|
|
" fn abs(x: i32) -> i32;\n"
|
|
"}"
|
|
|
|
#: src/android/interoperability/with-c.md:13
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let x = -42;\n"
|
|
" let abs_x = unsafe { abs(x) };\n"
|
|
" println!(\"{x}, {abs_x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let x = -42;\n"
|
|
" let abs_x = unsafe { abs(x) };\n"
|
|
" println!(\"{x}, {abs_x}\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c.md:20
|
|
#, fuzzy
|
|
msgid ""
|
|
"We already saw this in the [Safe FFI Wrapper\n"
|
|
"exercise](../../exercises/day-3/safe-ffi-wrapper.md)."
|
|
msgstr ""
|
|
"Já vimos isso no [Safe FFI Wrapper\n"
|
|
"exercício](../../exercises/day-3/safe-ffi-wrapper.md)."
|
|
|
|
#: src/android/interoperability/with-c.md:23
|
|
msgid ""
|
|
"> This assumes full knowledge of the target platform. Not recommended for\n"
|
|
"> production."
|
|
msgstr ""
|
|
"> Isso pressupõe conhecimento total da plataforma de destino. Não recomendado para\n"
|
|
"> produção."
|
|
|
|
#: src/android/interoperability/with-c.md:26
|
|
msgid "We will look at better options next."
|
|
msgstr "Veremos opções melhores a seguir."
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:1
|
|
msgid "# Using Bindgen"
|
|
msgstr "# Usando Bingen"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:3
|
|
msgid ""
|
|
"The [bindgen](https://rust-lang.github.io/rust-bindgen/introduction.html) tool\n"
|
|
"can auto-generate bindings from a C header file."
|
|
msgstr ""
|
|
"A ferramenta [bindgen](https://rust-lang.github.io/rust-bindgen/introduction.html)\n"
|
|
"pode gerar ligações automaticamente a partir de um arquivo de cabeçalho C."
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:6
|
|
msgid "First create a small C library:"
|
|
msgstr "Primeiro crie uma pequena biblioteca C:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:8
|
|
msgid "_interoperability/bindgen/libbirthday.h_:"
|
|
msgstr "_interoperabilage/bindgen/libbirthday.h_:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:10
|
|
msgid ""
|
|
"```c\n"
|
|
"typedef struct card {\n"
|
|
" const char* name;\n"
|
|
" int years;\n"
|
|
"} card;"
|
|
msgstr ""
|
|
"```c\n"
|
|
"typedef struct card {\n"
|
|
" const char* name;\n"
|
|
" int years;\n"
|
|
"} card;"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:16
|
|
msgid ""
|
|
"void print_card(const card* card);\n"
|
|
"```"
|
|
msgstr ""
|
|
"void print_card(const card* card);\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:19
|
|
msgid "_interoperability/bindgen/libbirthday.c_:"
|
|
msgstr "_interoperabilage/bindgen/libbirthday.c_:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:21
|
|
msgid ""
|
|
"```c\n"
|
|
"#include <stdio.h>\n"
|
|
"#include \"libbirthday.h\""
|
|
msgstr ""
|
|
"```c\n"
|
|
"#include <stdio.h>\n"
|
|
"#include \"libaniversário.h\""
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:25
|
|
msgid ""
|
|
"void print_card(const card* card) {\n"
|
|
" printf(\"+--------------\\n\");\n"
|
|
" printf(\"| Happy Birthday %s!\\n\", card->name);\n"
|
|
" printf(\"| Congratulations with the %i years!\\n\", card->years);\n"
|
|
" printf(\"+--------------\\n\");\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"void print_card(const card* card) {\n"
|
|
" printf(\"+--------------\\n\");\n"
|
|
" printf(\"| Feliz Aniversário %s!\\n\", cartão->name);\n"
|
|
" printf(\"| Parabéns pelos %i anos!\\n\", card->years);\n"
|
|
" printf(\"+--------------\\n\");\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:33
|
|
msgid "Add this to your `Android.bp` file:"
|
|
msgstr "Adicione isto ao seu arquivo `Android.bp`:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:35 src/android/interoperability/with-c/bindgen.md:55
|
|
#: src/android/interoperability/with-c/bindgen.md:69 src/android/interoperability/with-c/bindgen.md:108
|
|
msgid "_interoperability/bindgen/Android.bp_:"
|
|
msgstr "_interoperabilage/bindgen/Android.bp_:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:37
|
|
msgid ""
|
|
"```javascript\n"
|
|
"cc_library {\n"
|
|
" name: \"libbirthday\",\n"
|
|
" srcs: [\"libbirthday.c\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"cc_library {\n"
|
|
" name: \"libaniversário\",\n"
|
|
" srcs: [\"libbirthday.c\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:44
|
|
msgid ""
|
|
"Create a wrapper header file for the library (not strictly needed in this\n"
|
|
"example):"
|
|
msgstr ""
|
|
"Crie um arquivo de cabeçalho wrapper para a biblioteca (não estritamente necessário neste\n"
|
|
"exemplo):"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:47
|
|
msgid "_interoperability/bindgen/libbirthday_wrapper.h_:"
|
|
msgstr "_interoperabilage/bindgen/libbirthday_wrapper.h_:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:49
|
|
msgid ""
|
|
"```c\n"
|
|
"#include \"libbirthday.h\"\n"
|
|
"```"
|
|
msgstr ""
|
|
"```c\n"
|
|
"#include \"libaniversário.h\"\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:53
|
|
msgid "You can now auto-generate the bindings:"
|
|
msgstr "Agora você pode gerar automaticamente as vinculações:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:57
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_bindgen {\n"
|
|
" name: \"libbirthday_bindgen\",\n"
|
|
" crate_name: \"birthday_bindgen\",\n"
|
|
" wrapper_src: \"libbirthday_wrapper.h\",\n"
|
|
" source_stem: \"bindings\",\n"
|
|
" static_libs: [\"libbirthday\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_bindgen {\n"
|
|
" name: \"libbirthday_bindgen\",\n"
|
|
" crate_name: \"aniversário_bindgen\",\n"
|
|
" wrapper_src: \"libbirthday_wrapper.h\",\n"
|
|
" source_stem: \"vinculações\",\n"
|
|
" static_libs: [\"libaniversário\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:67
|
|
msgid "Finally, we can use the bindings in our Rust program:"
|
|
msgstr "Finalmente, podemos usar as ligações em nosso programa Rust:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:71
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_binary {\n"
|
|
" name: \"print_birthday_card\",\n"
|
|
" srcs: [\"main.rs\"],\n"
|
|
" rustlibs: [\"libbirthday_bindgen\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_binário {\n"
|
|
" name: \"print_birthday_card\",\n"
|
|
" srcs: [\"main.rs\"],\n"
|
|
" rustlibs: [\"libbirthday_bindgen\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:79
|
|
msgid "_interoperability/bindgen/main.rs_:"
|
|
msgstr "_interoperabilage/bindgen/main.rs_:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:81
|
|
msgid ""
|
|
"```rust,compile_fail\n"
|
|
"//! Bindgen demo."
|
|
msgstr ""
|
|
"```rust,compile_fail\n"
|
|
"//! Demonstração do Bingen."
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:84
|
|
msgid "use birthday_bindgen::{card, print_card};"
|
|
msgstr "use birthday_bindgen::{card, print_card};"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:86
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let name = std::ffi::CString::new(\"Peter\").unwrap();\n"
|
|
" let card = card {\n"
|
|
" name: name.as_ptr(),\n"
|
|
" years: 42,\n"
|
|
" };\n"
|
|
" unsafe {\n"
|
|
" print_card(&card as *const card);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let name = std::ffi::CString::new(\"Peter\").unwrap();\n"
|
|
" let card = card {\n"
|
|
" name: name.as_ptr(),\n"
|
|
" years: 42,\n"
|
|
" };\n"
|
|
" unsafe {\n"
|
|
" print_card(&card as *const card);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:100
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m print_birthday_card\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/print_birthday_card /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/print_birthday_card\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m print_birthday_card\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/print_birthday_card /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/print_birthday_card\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:106
|
|
msgid "Finally, we can run auto-generated tests to ensure the bindings work:"
|
|
msgstr "Por fim, podemos executar testes gerados automaticamente para garantir que as vinculações funcionem:"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:110
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_test {\n"
|
|
" name: \"libbirthday_bindgen_test\",\n"
|
|
" srcs: [\":libbirthday_bindgen\"],\n"
|
|
" crate_name: \"libbirthday_bindgen_test\",\n"
|
|
" test_suites: [\"general-tests\"],\n"
|
|
" auto_gen_config: true,\n"
|
|
" clippy_lints: \"none\", // Generated file, skip linting\n"
|
|
" lints: \"none\",\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_test {\n"
|
|
" name: \"libbirthday_bindgen_test\",\n"
|
|
" srcs: [\":libbirthday_bindgen\"],\n"
|
|
" crate_name: \"libbirthday_bindgen_test\",\n"
|
|
" test_suites: [\"general-tests\"],\n"
|
|
" auto_gen_config: true,\n"
|
|
" clippy_lints: \"none\", // Arquivo gerado, pule o linting\n"
|
|
" lints: \"none\",\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/bindgen.md:122
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ atest libbirthday_bindgen_test\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ atest libbirthday_bindgen_test\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:1
|
|
msgid "# Calling Rust"
|
|
msgstr "# Chamando Rust"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:3
|
|
msgid "Exporting Rust functions and types to C is easy:"
|
|
msgstr "Exportar funções e tipos do Rust para C é fácil:"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:5
|
|
msgid "_interoperability/rust/libanalyze/analyze.rs_"
|
|
msgstr "_interoperabilage/rust/libanalyze/analyze.rs_"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:7
|
|
#, fuzzy
|
|
msgid ""
|
|
"```rust,editable\n"
|
|
"//! Rust FFI demo.\n"
|
|
"#![deny(improper_ctypes_definitions)]"
|
|
msgstr ""
|
|
"```rust, editable\n"
|
|
"//! Rust FFI demonstração.\n"
|
|
"#![negar(improper_ctypes_definitions)]"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:11
|
|
msgid "use std::os::raw::c_int;"
|
|
msgstr "use std::os::raw::c_int;"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:13
|
|
#, fuzzy
|
|
msgid ""
|
|
"/// Analyze the numbers.\n"
|
|
"#[no_mangle]\n"
|
|
"pub extern \"C\" fn analyze_numbers(x: c_int, y: c_int) {\n"
|
|
" if x < y {\n"
|
|
" println!(\"x ({x}) is smallest!\");\n"
|
|
" } else {\n"
|
|
" println!(\"y ({y}) is probably larger than x ({x})\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Analisar os números.\n"
|
|
"#[no_mangle]\n"
|
|
"pub extern \"C\" fn analise_números(x: c_int, y: c_int) {\n"
|
|
" if x < y {\n"
|
|
" println!(\"x ({x}) é o menor!\");\n"
|
|
" } else {\n"
|
|
" println!(\"y ({y}) é provavelmente maior que x ({x})\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:24
|
|
msgid "_interoperability/rust/libanalyze/analyze.h_"
|
|
msgstr "_interoperabilage/rust/libanalyze/analyze.h_"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:26
|
|
msgid ""
|
|
"```c\n"
|
|
"#ifndef ANALYSE_H\n"
|
|
"#define ANALYSE_H"
|
|
msgstr ""
|
|
"```c\n"
|
|
"#ifndef ANALYSE_H\n"
|
|
"#define ANALYSE_H"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:30
|
|
msgid ""
|
|
"extern \"C\" {\n"
|
|
"void analyze_numbers(int x, int y);\n"
|
|
"}"
|
|
msgstr ""
|
|
"externo \"C\" {\n"
|
|
"void analizar_números(int x, int y);\n"
|
|
"}"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:34
|
|
msgid ""
|
|
"#endif\n"
|
|
"```"
|
|
msgstr ""
|
|
"#fim se\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:37
|
|
msgid "_interoperability/rust/libanalyze/Android.bp_"
|
|
msgstr "_interoperabilage/rust/libanalyze/Android.bp_"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:39
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_ffi {\n"
|
|
" name: \"libanalyze_ffi\",\n"
|
|
" crate_name: \"analyze_ffi\",\n"
|
|
" srcs: [\"analyze.rs\"],\n"
|
|
" include_dirs: [\".\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_ffi {\n"
|
|
" name: \"libanalyze_ffi\",\n"
|
|
" crate_name: \"analyze_ffi\",\n"
|
|
" srcs: [\"analisar.rs\"],\n"
|
|
" include_dirs: [\".\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:48
|
|
msgid "We can now call this from a C binary:"
|
|
msgstr "Agora podemos chamar isso de um binário C:"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:50
|
|
msgid "_interoperability/rust/analyze/main.c_"
|
|
msgstr "_interoperabilage/rust/analisar/main.c_"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:52
|
|
msgid ""
|
|
"```c\n"
|
|
"#include \"analyze.h\""
|
|
msgstr ""
|
|
"```c\n"
|
|
"#include \"analisar.h\""
|
|
|
|
#: src/android/interoperability/with-c/rust.md:55
|
|
msgid ""
|
|
"int main() {\n"
|
|
" analyze_numbers(10, 20);\n"
|
|
" analyze_numbers(123, 123);\n"
|
|
" return 0;\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"int main() {\n"
|
|
" analyze_numbers(10, 20);\n"
|
|
" analyze_numbers(123, 123);\n"
|
|
" return 0;\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:62
|
|
msgid "_interoperability/rust/analyze/Android.bp_"
|
|
msgstr "_interoperabilage/rust/analyze/Android.bp_"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:64
|
|
msgid ""
|
|
"```javascript\n"
|
|
"cc_binary {\n"
|
|
" name: \"analyze_numbers\",\n"
|
|
" srcs: [\"main.c\"],\n"
|
|
" static_libs: [\"libanalyze_ffi\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"cc_binary {\n"
|
|
" name: \"analisar_números\",\n"
|
|
" srcs: [\"main.c\"],\n"
|
|
" static_libs: [\"libanalyze_ffi\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:75
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m analyze_numbers\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/analyze_numbers /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/analyze_numbers\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m analizar_números\n"
|
|
"$ adb push $ANDROID_PRODUCT_OUT/system/bin/analyze_numbers /data/local/tmp\n"
|
|
"$ adb shell /data/local/tmp/analyze_numbers\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/with-c/rust.md:83
|
|
msgid ""
|
|
"`#[no_mangle]` disables Rust's usual name mangling, so the exported symbol will just be the name of\n"
|
|
"the function. You can also use `#[export_name = \"some_name\"]` to specify whatever name you want."
|
|
msgstr ""
|
|
"`#[no_mangle]` desativa a alteração de name usual do Rust, então o símbolo exportado será apenas o name de\n"
|
|
"a função. Você também pode usar `#[export_name = \"some_name\"]` para especificar qualquer name que desejar."
|
|
|
|
#: src/android/interoperability/cpp.md:1
|
|
msgid "# With C++"
|
|
msgstr "# Com C++"
|
|
|
|
#: src/android/interoperability/cpp.md:3
|
|
msgid ""
|
|
"The [CXX crate][1] makes it possible to do safe interoperability between Rust\n"
|
|
"and C++."
|
|
msgstr ""
|
|
"A [caixa CXX] [1] possibilita a interoperabilage segura entre Rust\n"
|
|
"e C++."
|
|
|
|
#: src/android/interoperability/cpp.md:6
|
|
msgid "The overall approach looks like this:"
|
|
msgstr "A abordagem geral é assim:"
|
|
|
|
#: src/android/interoperability/cpp.md:8
|
|
msgid "<img src=\"cpp/overview.svg\">"
|
|
msgstr "<img src=\"cpp/overview.svg\">"
|
|
|
|
#: src/android/interoperability/cpp.md:10
|
|
msgid "See the [CXX tutorial][2] for an full example of using this."
|
|
msgstr "Veja o [tutorial CXX][2] para um exemplo completo de como usar isso."
|
|
|
|
#: src/android/interoperability/cpp.md:12
|
|
msgid ""
|
|
"[1]: https://cxx.rs/\n"
|
|
"[2]: https://cxx.rs/tutorial.html"
|
|
msgstr ""
|
|
"[1]: https://cxx.rs/\n"
|
|
"[2]: https://cxx.rs/tutorial.html"
|
|
|
|
#: src/android/interoperability/java.md:1
|
|
msgid "# Interoperability with Java"
|
|
msgstr "# Interoperabilage com Java"
|
|
|
|
#: src/android/interoperability/java.md:3
|
|
msgid ""
|
|
"Java can load shared objects via [Java Native Interface\n"
|
|
"(JNI)](https://en.wikipedia.org/wiki/Java_Native_Interface). The [`jni`\n"
|
|
"crate](https://docs.rs/jni/) allows you to create a compatible library."
|
|
msgstr ""
|
|
"Java pode carregar objetos compartilhados via [Java Native Interface\n"
|
|
"(JNI)](https://en.wikipedia.org/wiki/Java_Native_Interface). O [`jni`\n"
|
|
"crate](https://docs.rs/jni/) permite que você crie uma biblioteca compatível."
|
|
|
|
#: src/android/interoperability/java.md:7
|
|
msgid "First, we create a Rust function to export to Java:"
|
|
msgstr "Primeiro, criamos uma função Rust para exportar para Java:"
|
|
|
|
#: src/android/interoperability/java.md:9
|
|
msgid "_interoperability/java/src/lib.rs_:"
|
|
msgstr "_interoperabilage/java/src/lib.rs_:"
|
|
|
|
#: src/android/interoperability/java.md:11
|
|
msgid ""
|
|
"```rust,compile_fail\n"
|
|
"//! Rust <-> Java FFI demo."
|
|
msgstr ""
|
|
"```rust,compile_fail\n"
|
|
"//! Rust <-> Demonstração Java FFI."
|
|
|
|
#: src/android/interoperability/java.md:14
|
|
msgid ""
|
|
"use jni::objects::{JClass, JString};\n"
|
|
"use jni::sys::jstring;\n"
|
|
"use jni::JNIEnv;"
|
|
msgstr ""
|
|
"use jni::objects::{JClass, JString};\n"
|
|
"use jni::sys::jstring;\n"
|
|
"use jni::JNIEnv;"
|
|
|
|
#: src/android/interoperability/java.md:18
|
|
msgid ""
|
|
"/// HelloWorld::hello method implementation.\n"
|
|
"#[no_mangle]\n"
|
|
"pub extern \"system\" fn Java_HelloWorld_hello(\n"
|
|
" env: JNIEnv,\n"
|
|
" _class: JClass,\n"
|
|
" name: JString,\n"
|
|
") -> jstring {\n"
|
|
" let input: String = env.get_string(name).unwrap().into();\n"
|
|
" let greeting = format!(\"Hello, {input}!\");\n"
|
|
" let output = env.new_string(greeting).unwrap();\n"
|
|
" output.into_inner()\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"/// Implementação do método HelloWorld::hello.\n"
|
|
"#[no_mangle]\n"
|
|
"pub extern \"sistema\" fn Java_HelloWorld_hello(\n"
|
|
" env: JNIEnv,\n"
|
|
" _class: JClass,\n"
|
|
" name: JString,\n"
|
|
") -> jstring {\n"
|
|
" let input: String = env.get_string(name).unwrap().into();\n"
|
|
" let saudação = format!(\"Olá, {input}!\");\n"
|
|
" let output = env.new_string(greeting).unwrap();\n"
|
|
" output.into_inner()\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/java.md:32 src/android/interoperability/java.md:62
|
|
msgid "_interoperability/java/Android.bp_:"
|
|
msgstr "_interoperabilage/java/Android.bp_:"
|
|
|
|
#: src/android/interoperability/java.md:34
|
|
msgid ""
|
|
"```javascript\n"
|
|
"rust_ffi_shared {\n"
|
|
" name: \"libhello_jni\",\n"
|
|
" crate_name: \"hello_jni\",\n"
|
|
" srcs: [\"src/lib.rs\"],\n"
|
|
" rustlibs: [\"libjni\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"rust_ffi_shared {\n"
|
|
" name: \"libhello_jni\",\n"
|
|
" crate_name: \"hello_jni\",\n"
|
|
" srcs: [\"src/lib.rs\"],\n"
|
|
" rustlibs: [\"libjni\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/java.md:43
|
|
msgid "Finally, we can call this function from Java:"
|
|
msgstr "Finalmente, podemos chamar esta função do Java:"
|
|
|
|
#: src/android/interoperability/java.md:45
|
|
msgid "_interoperability/java/HelloWorld.java_:"
|
|
msgstr "_interoperabilage/java/HelloWorld.java_:"
|
|
|
|
#: src/android/interoperability/java.md:47
|
|
msgid ""
|
|
"```java\n"
|
|
"class HelloWorld {\n"
|
|
" private static native String hello(String name);"
|
|
msgstr ""
|
|
"```java\n"
|
|
"classe AlôMundo {\n"
|
|
" private static nativo String hello(String name);"
|
|
|
|
#: src/android/interoperability/java.md:51
|
|
msgid ""
|
|
" static {\n"
|
|
" System.loadLibrary(\"hello_jni\");\n"
|
|
" }"
|
|
msgstr ""
|
|
" static {\n"
|
|
" System.loadLibrary(\"hello_jni\");\n"
|
|
" }"
|
|
|
|
#: src/android/interoperability/java.md:55
|
|
msgid ""
|
|
" public static void main(String[] args) {\n"
|
|
" String output = HelloWorld.hello(\"Alice\");\n"
|
|
" System.out.println(output);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" public static void main(String[] args) {\n"
|
|
" String output = HelloWorld.hello(\"Alice\");\n"
|
|
" System.out.println(saída);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/java.md:64
|
|
msgid ""
|
|
"```javascript\n"
|
|
"java_binary {\n"
|
|
" name: \"helloworld_jni\",\n"
|
|
" srcs: [\"HelloWorld.java\"],\n"
|
|
" main_class: \"HelloWorld\",\n"
|
|
" required: [\"libhello_jni\"],\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"```javascript\n"
|
|
"java_binary {\n"
|
|
" name: \"helloworld_jni\",\n"
|
|
" srcs: [\"HelloWorld.java\"],\n"
|
|
" main_class: \"OláMundo\",\n"
|
|
" necessário: [\"libhello_jni\"],\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/android/interoperability/java.md:73
|
|
msgid "Finally, you can build, sync, and run the binary:"
|
|
msgstr "Por fim, você pode criar, sincronizar e executar o binário:"
|
|
|
|
#: src/android/interoperability/java.md:75
|
|
msgid ""
|
|
"```shell\n"
|
|
"$ m helloworld_jni\n"
|
|
"$ adb sync # requires adb root && adb remount\n"
|
|
"$ adb shell /system/bin/helloworld_jni\n"
|
|
"```"
|
|
msgstr ""
|
|
"```shell\n"
|
|
"$ m helloworld_jni\n"
|
|
"$ adb sync # requer adb root && adb remount\n"
|
|
"$ adb shell /system/bin/helloworld_jni\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-4/afternoon.md:3
|
|
msgid ""
|
|
"For the last exercise, we will look at one of the projects you work with. Let us\n"
|
|
"group up and do this together. Some suggestions:"
|
|
msgstr ""
|
|
"No último exercício, veremos um dos projetos com os quais você trabalha. let-nos\n"
|
|
"agrupe-se e faça isso juntos. Algumas sugestões:"
|
|
|
|
#: src/exercises/day-4/afternoon.md:6
|
|
msgid "* Call your AIDL service with a client written in Rust."
|
|
msgstr "* Chame seu serviço AIDL com um cliente escrito em Rust."
|
|
|
|
#: src/exercises/day-4/afternoon.md:8
|
|
msgid "* Move a function from your project to Rust and call it."
|
|
msgstr "* Mova uma função do seu projeto para o Rust e chame-a."
|
|
|
|
#: src/exercises/day-4/afternoon.md:12
|
|
msgid ""
|
|
"No solution is provided here since this is open-ended: it relies on someone in\n"
|
|
"the class having a piece of code which you can turn in to Rust on the fly."
|
|
msgstr ""
|
|
"Nenhuma solução é fornecida aqui, pois isso é aberto: depende de alguém em\n"
|
|
"a classe tendo um pedaço de código que você pode transformar em Rust em tempo real."
|
|
|
|
#: src/thanks.md:1
|
|
msgid "# Thanks!"
|
|
msgstr "# Obrigado!"
|
|
|
|
#: src/thanks.md:3
|
|
msgid ""
|
|
"_Thank you for taking Comprehensive Rust 🦀!_ We hope you enjoyed it and that it\n"
|
|
"was useful."
|
|
msgstr ""
|
|
"_Obrigado por fazer o Comprehensive Rust 🦀!_ Esperamos que tenha gostado e que\n"
|
|
"foi útil."
|
|
|
|
#: src/thanks.md:6
|
|
msgid ""
|
|
"We've had a lot of fun putting the course together. The course is not perfect,\n"
|
|
"so if you spotted any mistakes or have ideas for improvements, please get in\n"
|
|
"[contact with us on\n"
|
|
"GitHub](https://github.com/google/comprehensive-rust/discussions). We would love\n"
|
|
"to hear from you."
|
|
msgstr ""
|
|
"Nós nos divertimos muito montando o curso. O curso não é perfeito,\n"
|
|
"portanto, se você identificou algum erro ou tem ideias para melhorias, entre em\n"
|
|
"[entre em contato conosco em\n"
|
|
"GitHub](https://github.com/google/comprehensive-rust/discussions). nós adoraríamos\n"
|
|
"ouvir de você."
|
|
|
|
#: src/other-resources.md:1
|
|
msgid "# Other Rust Resources"
|
|
msgstr "# Outros recursos de rust"
|
|
|
|
#: src/other-resources.md:3
|
|
msgid ""
|
|
"The Rust community has created a wealth of high-quality and free resources\n"
|
|
"online."
|
|
msgstr ""
|
|
"A comunage Rust criou uma riqueza de recursos gratuitos e de alta qualage\n"
|
|
"on-line."
|
|
|
|
#: src/other-resources.md:6
|
|
msgid "## Official Documentation"
|
|
msgstr "## Documentação Oficial"
|
|
|
|
#: src/other-resources.md:8
|
|
msgid "The Rust project hosts many resources. These cover Rust in general:"
|
|
msgstr "O projeto Rust hospeda muitos recursos. Estes cobrem Rust em geral:"
|
|
|
|
#: src/other-resources.md:10
|
|
msgid ""
|
|
"* [The Rust Programming Language](https://doc.rust-lang.org/book/): the\n"
|
|
" canonical free book about Rust. Covers the language in detail and includes a\n"
|
|
" few projects for people to build.\n"
|
|
"* [Rust By Example](https://doc.rust-lang.org/rust-by-example/): covers the Rust\n"
|
|
" syntax via a series of examples which showcase different constructs. Sometimes\n"
|
|
" includes small exercises where you are asked to expand on the code in the\n"
|
|
" examples.\n"
|
|
"* [Rust Standard Library](https://doc.rust-lang.org/std/): full documentation of\n"
|
|
" the standard library for Rust.\n"
|
|
"* [The Rust Reference](https://doc.rust-lang.org/reference/): an incomplete book\n"
|
|
" which describes the Rust grammar and memory model."
|
|
msgstr ""
|
|
"* [A Linguagem de Programação Rust](https://doc.rust-lang.org/book/): o\n"
|
|
" livro gratuito canônico sobre Rust. Abrange o idioma em detalhes e inclui um\n"
|
|
" poucos projetos para as Persons construírem.\n"
|
|
"* [Rust By Example](https://doc.rust-lang.org/rust-by-example/): abrange o Rust\n"
|
|
" sintaxe por meio de uma série de exemplos que mostram diferentes construções. As vezes\n"
|
|
" inclui pequenos exercícios onde você é solicitado a expandir o código no\n"
|
|
" exemplos.\n"
|
|
"* [Rust Standard Library](https://doc.rust-lang.org/std/): documentação completa de\n"
|
|
" a biblioteca padrão para Rust.\n"
|
|
"* [The Rust Reference](https://doc.rust-lang.org/reference/): um livro incompleto\n"
|
|
" que descreve a gramática Rust e o modelo de memória."
|
|
|
|
#: src/other-resources.md:22
|
|
msgid "More specialized guides hosted on the official Rust site:"
|
|
msgstr "Mais guias especializados hospedados no site oficial do Rust:"
|
|
|
|
#: src/other-resources.md:24
|
|
msgid ""
|
|
"* [The Rustonomicon](https://doc.rust-lang.org/nomicon/): covers unsafe Rust,\n"
|
|
" including working with raw pointers and interfacing with other languages\n"
|
|
" (FFI).\n"
|
|
"* [Asynchronous Programming in Rust](https://rust-lang.github.io/async-book/):\n"
|
|
" covers the new asynchronous programming model which was introduced after the\n"
|
|
" Rust Book was written.\n"
|
|
"* [The Embedded Rust Book](https://doc.rust-lang.org/stable/embedded-book/): an\n"
|
|
" introduction to using Rust on embedded devices without an operating system."
|
|
msgstr ""
|
|
"* [O Rustonomicon](https://doc.rust-lang.org/nomicon/): cobre Rust inseguro,\n"
|
|
" incluindo trabalhar com ponteiros brutos e fazer interface com outros idiomas\n"
|
|
" (FFI).\n"
|
|
"* [Programação assíncrona em Rust](https://rust-lang.github.io/async-book/):\n"
|
|
" abrange o novo modelo de programação assíncrona que foi introduzido após o\n"
|
|
" Rust Book foi escrito.\n"
|
|
"* [The Embedded Rust Book](https://doc.rust-lang.org/stable/embedded-book/): um\n"
|
|
" introdução ao uso do Rust em dispositivos embarcados sem um sistema operacional."
|
|
|
|
#: src/other-resources.md:33
|
|
msgid "## Unofficial Learning Material"
|
|
msgstr "## Material de aprendizagem não oficial"
|
|
|
|
#: src/other-resources.md:35
|
|
msgid "A small selection of other guides and tutorial for Rust:"
|
|
msgstr "Uma pequena seleção de outros guias e tutoriais para Rust:"
|
|
|
|
#: src/other-resources.md:37
|
|
msgid ""
|
|
"* [Learn Rust the Dangerous Way](http://cliffle.com/p/dangerust/): covers Rust\n"
|
|
" from the perspective of low-level C programmers.\n"
|
|
"* [Rust for Embedded C\n"
|
|
" Programmers](https://docs.opentitan.org/doc/ug/rust_for_c/): covers Rust from\n"
|
|
" the perspective of developers who write firmware in C.\n"
|
|
"* [Rust for professionals](https://overexact.com/rust-for-professionals/):\n"
|
|
" covers the syntax of Rust using side-by-side comparisons with other languages\n"
|
|
" such as C, C++, Java, JavaScript, and Python.\n"
|
|
"* [Rust on Exercism](https://exercism.org/tracks/rust): 100+ exercises to help\n"
|
|
" you learn Rust.\n"
|
|
"* [Ferrous Teaching\n"
|
|
" Material](https://ferrous-systems.github.io/teaching-material/index.html): a\n"
|
|
" series of small presentations covering both basic and advanced part of the\n"
|
|
" Rust language. Other topics such as WebAssembly, and async/await are also\n"
|
|
" covered.\n"
|
|
"* [Beginner's Series to\n"
|
|
" Rust](https://docs.microsoft.com/en-us/shows/beginners-series-to-rust/) and\n"
|
|
" [Take your first steps with\n"
|
|
" Rust](https://docs.microsoft.com/en-us/learn/paths/rust-first-steps/): two\n"
|
|
" Rust guides aimed at new developers. The first is a set of 35 videos and the\n"
|
|
" second is a set of 11 modules which covers Rust syntax and basic constructs."
|
|
msgstr ""
|
|
"* [Aprenda Rust da maneira perigosa](http://cliffle.com/p/dangerust/): cobre Rust\n"
|
|
" da perspectiva de programadores C de baixo nível.\n"
|
|
"* [Rust for Embedded C\n"
|
|
" Programadores](https://docs.opentitan.org/doc/ug/rust_for_c/): cobre Rust de\n"
|
|
" a perspectiva dos desenvolvedores que escrevem firmware em C.\n"
|
|
"* [Rust para profissionais](https://overexact.com/rust-for-professionals/):\n"
|
|
" cobre a sintaxe do Rust usando comparações lado a lado com outras linguagens\n"
|
|
" como C, C++, Java, JavaScript e Python.\n"
|
|
"* [Rust on Exercism](https://exercism.org/tracks/rust): mais de 100 exercícios para ajudar\n"
|
|
" você aprende Rust.\n"
|
|
"* [Ensino Ferroso\n"
|
|
" Material](https://ferrous-systems.github.io/teaching-material/index.html): a\n"
|
|
" série de pequenas apresentações abrangendo tanto a parte básica quanto a avançada do\n"
|
|
" Linguagem de rust. Outros tópicos como WebAssembly e async/await também são\n"
|
|
" abordado.\n"
|
|
"* [Série Iniciante a\n"
|
|
" Rust](https://docs.microsoft.com/en-us/shows/beginners-series-to-rust/) e\n"
|
|
" [Dê seus primeiros passos com\n"
|
|
" Rust](https://docs.microsoft.com/en-us/learn/paths/rust-first-steps/): dois\n"
|
|
" Rust guias voltados para novos desenvolvedores. O primeiro é um conjunto de 35 vídeos e o\n"
|
|
" o segundo é um conjunto de 11 módulos que cobrem a sintaxe Rust e as construções básicas."
|
|
|
|
#: src/other-resources.md:59
|
|
msgid ""
|
|
"Please see the [Little Book of Rust Books](https://lborb.github.io/book/) for\n"
|
|
"even more Rust books."
|
|
msgstr ""
|
|
"Consulte o [Little Book of Rust Books](https://lborb.github.io/book/) para\n"
|
|
"ainda mais livros Rust."
|
|
|
|
#: src/credits.md:1
|
|
msgid "# Credits"
|
|
msgstr "# Créditos"
|
|
|
|
#: src/credits.md:3
|
|
msgid ""
|
|
"The material here builds on top of the many great sources of Rust documentation.\n"
|
|
"See the page on [other resources](other-resources.md) for a full list of useful\n"
|
|
"resources."
|
|
msgstr ""
|
|
"O material aqui se baseia em muitas fontes excelentes de documentação do Rust.\n"
|
|
"Consulte a página em [outros recursos](outros-recursos.md) para obter uma lista completa de recursos úteis\n"
|
|
"Recursos."
|
|
|
|
#: src/credits.md:7
|
|
msgid ""
|
|
"The material of Comprehensive Rust is licensed under the terms of the Apache 2.0\n"
|
|
"license, please see [`LICENSE`](../LICENSE) for details."
|
|
msgstr ""
|
|
"O material do Comprehensive Rust é licenciado sob os termos do Apache 2.0\n"
|
|
"licença, consulte [`LICENSE`](../LICENSE) para obter detalhes."
|
|
|
|
#: src/credits.md:10
|
|
msgid "## Rust by Example"
|
|
msgstr "## Rust by Example"
|
|
|
|
#: src/credits.md:12
|
|
msgid ""
|
|
"Some examples and exercises have been copied and adapted from [Rust by\n"
|
|
"Example](https://doc.rust-lang.org/rust-by-example/). Please see the\n"
|
|
"`third_party/rust-by-example/` directory for details, including the license\n"
|
|
"terms."
|
|
msgstr ""
|
|
"Alguns exemplos e exercícios foram copiados e adaptados de [Rust by\n"
|
|
"Exemplo](https://doc.rust-lang.org/rust-by-example/). por favor veja o\n"
|
|
"diretório `third_party/rust-by-example/` para detalhes, incluindo a licença\n"
|
|
"termos."
|
|
|
|
#: src/credits.md:17
|
|
msgid "## Rust on Exercism"
|
|
msgstr "## Rust on Exercism"
|
|
|
|
#: src/credits.md:19
|
|
msgid ""
|
|
"Some exercises have been copied and adapted from [Rust on\n"
|
|
"Exercism](https://exercism.org/tracks/rust). Please see the\n"
|
|
"`third_party/rust-on-exercism/` directory for details, including the license\n"
|
|
"terms."
|
|
msgstr ""
|
|
"Alguns exercícios foram copiados e adaptados de [Rust on\n"
|
|
"Exercism](https://exercism.org/tracks/rust). por favor veja o\n"
|
|
"diretório `third_party/rust-on-exercism/` para obter detalhes, incluindo a licença\n"
|
|
"termos."
|
|
|
|
#: src/credits.md:24
|
|
msgid "## CXX"
|
|
msgstr "## CXX"
|
|
|
|
#: src/credits.md:26
|
|
msgid ""
|
|
"The [Interoperability with C++](android/interoperability/cpp.md) section uses an\n"
|
|
"image from [CXX](https://cxx.rs/). Please see the `third_party/cxx/` directory\n"
|
|
"for details, including the license terms."
|
|
msgstr ""
|
|
"A seção [Interoperability with C++](android/interoperability/cpp.md) usa um\n"
|
|
"imagem de [CXX](https://cxx.rs/). Consulte o diretório `third_party/cxx/`\n"
|
|
"para obter detalhes, incluindo os termos da licença."
|
|
|
|
#: src/exercises/solutions.md:1
|
|
msgid "# Solutions"
|
|
msgstr "# Soluções"
|
|
|
|
#: src/exercises/solutions.md:3
|
|
msgid "You will find solutions to the exercises on the following pages."
|
|
msgstr "Você encontrará soluções para os exercícios nas páginas seguintes."
|
|
|
|
#: src/exercises/solutions.md:5
|
|
msgid ""
|
|
"Feel free to ask questions about the solutions [on\n"
|
|
"GitHub](https://github.com/google/comprehensive-rust/discussions). Let us know\n"
|
|
"if you have a different or better solution than what is presented here."
|
|
msgstr ""
|
|
"Sinta-se à vontade para fazer perguntas sobre as soluções [no\n"
|
|
"GitHub](https://github.com/google/comprehensive-rust/discussions). Nos informe\n"
|
|
"se você tiver uma solução diferente ou melhor do que a apresentada aqui."
|
|
|
|
#: src/exercises/solutions.md:10
|
|
msgid ""
|
|
"> **Note:** Please ignore the `// ANCHOR: label` and `// ANCHOR_END: label`\n"
|
|
"> comments you see in the solutions. They are there to make it possible to\n"
|
|
"> re-use parts of the solutions as the exercises."
|
|
msgstr ""
|
|
"> **Nota:** Ignore `// ANCHOR: label` e `// ANCHOR_END: label`\n"
|
|
"> comentários que você vê nas soluções. Eles estão lá para tornar possível\n"
|
|
"> reutilizar partes das soluções como exercícios."
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:1
|
|
msgid "# Day 1 Morning Exercises"
|
|
msgstr "# Dia 1 Exercícios matinais"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:3
|
|
msgid "## Arrays and `for` Loops"
|
|
msgstr "## Arrays e loops `for`"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:5
|
|
msgid "([back to exercise](for-loops.md))"
|
|
msgstr "([voltar ao exercício](for-loops.md))"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:7 src/exercises/day-1/solutions-afternoon.md:7
|
|
#: src/exercises/day-2/solutions-morning.md:7 src/exercises/day-2/solutions-afternoon.md:7
|
|
#: src/exercises/day-2/solutions-afternoon.md:102 src/exercises/day-3/solutions-morning.md:7
|
|
#: src/exercises/day-3/solutions-afternoon.md:7 src/exercises/day-4/solutions-morning.md:7
|
|
msgid ""
|
|
"```rust\n"
|
|
"// Copyright 2022 Google LLC\n"
|
|
"//\n"
|
|
"// Licensed under the Apache License, Version 2.0 (the \"License\");\n"
|
|
"// you may not use this file except in compliance with the License.\n"
|
|
"// You may obtain a copy of the License at\n"
|
|
"//\n"
|
|
"// http://www.apache.org/licenses/LICENSE-2.0\n"
|
|
"//\n"
|
|
"// Unless required by applicable law or agreed to in writing, software\n"
|
|
"// distributed under the License is distributed on an \"AS IS\" BASIS,\n"
|
|
"// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
|
|
"// See the License for the specific language governing permissions and\n"
|
|
"// limitations under the License."
|
|
msgstr ""
|
|
"```rust\n"
|
|
"// Copyright 2022 Google LLC\n"
|
|
"//\n"
|
|
"// Licensed under the Apache License, Version 2.0 (the \"License\");\n"
|
|
"// you may not use this file except in compliance with the License.\n"
|
|
"// You may obtain a copy of the License at\n"
|
|
"//\n"
|
|
"// http://www.apache.org/licenses/LICENSE-2.0\n"
|
|
"//\n"
|
|
"// Unless required by applicable law or agreed to in writing, software\n"
|
|
"// distributed under the License is distributed on an \"AS IS\" BASIS,\n"
|
|
"// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
|
|
"// See the License for the specific language governing permissions and\n"
|
|
"// limitations under the License."
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:22
|
|
msgid ""
|
|
"// ANCHOR: transpose\n"
|
|
"fn transpose(matrix: [[i32; 3]; 3]) -> [[i32; 3]; 3] {\n"
|
|
" // ANCHOR_END: transpose\n"
|
|
" let mut result = [[0; 3]; 3];\n"
|
|
" for i in 0..3 {\n"
|
|
" for j in 0..3 {\n"
|
|
" result[j][i] = matrix[i][j];\n"
|
|
" }\n"
|
|
" }\n"
|
|
" return result;\n"
|
|
"}"
|
|
msgstr ""
|
|
"// ANCHOR: transpose\n"
|
|
"fn transpose(matrix: [[i32; 3]; 3]) -> [[i32; 3]; 3] {\n"
|
|
" // ANCHOR_END: transpose\n"
|
|
" let mut result = [[0; 3]; 3];\n"
|
|
" for i in 0..3 {\n"
|
|
" for j in 0..3 {\n"
|
|
" result[j][i] = matrix[i][j];\n"
|
|
" }\n"
|
|
" }\n"
|
|
" return result;\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:34
|
|
msgid ""
|
|
"// ANCHOR: pretty_print\n"
|
|
"fn pretty_print(matrix: &[[i32; 3]; 3]) {\n"
|
|
" // ANCHOR_END: pretty_print\n"
|
|
" for row in matrix {\n"
|
|
" println!(\"{row:?}\");\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"// ANCHOR: pretty_print\n"
|
|
"fn pretty_print(matrix: &[[i32; 3]; 3]) {\n"
|
|
" // ANCHOR_END: pretty_print\n"
|
|
" for row in matrix {\n"
|
|
" println!(\"{row:?}\");\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:42
|
|
msgid ""
|
|
"// ANCHOR: tests\n"
|
|
"#[test]\n"
|
|
"fn test_transpose() {\n"
|
|
" let matrix = [\n"
|
|
" [101, 102, 103], //\n"
|
|
" [201, 202, 203],\n"
|
|
" [301, 302, 303],\n"
|
|
" ];\n"
|
|
" let transposed = transpose(matrix);\n"
|
|
" assert_eq!(\n"
|
|
" transposed,\n"
|
|
" [\n"
|
|
" [101, 201, 301], //\n"
|
|
" [102, 202, 302],\n"
|
|
" [103, 203, 303],\n"
|
|
" ]\n"
|
|
" );\n"
|
|
"}\n"
|
|
"// ANCHOR_END: tests"
|
|
msgstr ""
|
|
"// ANCHOR: tests\n"
|
|
"#[test]\n"
|
|
"fn test_transpose() {\n"
|
|
" let matrix = [\n"
|
|
" [101, 102, 103], //\n"
|
|
" [201, 202, 203],\n"
|
|
" [301, 302, 303],\n"
|
|
" ];\n"
|
|
" let transposed = transpose(matrix);\n"
|
|
" assert_eq!(\n"
|
|
" transposed,\n"
|
|
" [\n"
|
|
" [101, 201, 301], //\n"
|
|
" [102, 202, 302],\n"
|
|
" [103, 203, 303],\n"
|
|
" ]\n"
|
|
" );\n"
|
|
"}\n"
|
|
"// ANCHOR_END: tests"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:62
|
|
#, fuzzy
|
|
msgid ""
|
|
"// ANCHOR: main\n"
|
|
"fn main() {\n"
|
|
" let matrix = [\n"
|
|
" [101, 102, 103], // <-- the comment makes rustfmt add a newline\n"
|
|
" [201, 202, 203],\n"
|
|
" [301, 302, 303],\n"
|
|
" ];"
|
|
msgstr ""
|
|
"// ANCHOR: main\n"
|
|
"fn main() {\n"
|
|
" let array = [\n"
|
|
" [101, 102, 103], // <-- o comentário faz com que o rustfmt adicione uma nova linha\n"
|
|
" [201, 202, 203],\n"
|
|
" [301, 302, 303],\n"
|
|
" ];"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:73
|
|
#, fuzzy
|
|
msgid ""
|
|
" let transposed = transpose(matrix);\n"
|
|
" println!(\"transposed:\");\n"
|
|
" pretty_print(&transposed);\n"
|
|
"}\n"
|
|
"```\n"
|
|
msgstr ""
|
|
" let transposed = transpose(array);\n"
|
|
" println!(\"transposto:\");\n"
|
|
" pretty_print(&transposed);\n"
|
|
"}\n"
|
|
"```\n"
|
|
|
|
msgid "### Bonus question"
|
|
msgstr "### Pergunta bônus"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:80
|
|
msgid ""
|
|
"It requires more advanced concepts. It might seem that we could use a slice-of-slices (`&[&[i32]]`) as the input type to "
|
|
"transpose and thus make our function handle any size of matrix. However, this quickly breaks down: the return type cannot "
|
|
"be `&[&[i32]]` since it needs to own the data you return."
|
|
msgstr ""
|
|
"Sinceramente não funciona tão bem. Pode parecer que poderíamos usar uma slice de slices (`&[&[i32]]`) como o tipo de "
|
|
"entrada para transpose e, assim, fazer nossa função lidar com qualquer tamanho de array. No entanto, isso falha "
|
|
"rapidamente: o tipo de retorno não pode ser `&[&[i32]]`, pois ele precisa possuir os dados que você retorna."
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:82
|
|
msgid ""
|
|
"You can attempt to use something like `Vec<Vec<i32>>`, but this doesn't work out-of-the-box either: it's hard to convert "
|
|
"from `Vec<Vec<i32>>` to `&[&[i32]]` so now you cannot easily use `pretty_print` either."
|
|
msgstr ""
|
|
"Você pode tentar usar algo como `Vec<Vec<i32>>`, mas isso também não funciona muito bem: é difícil converter de "
|
|
"`Vec<Vec<i32>>` para `&[&[i32]] ` então agora você também não pode usar `pretty_print` facilmente."
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:84
|
|
msgid ""
|
|
"Once we get to traits and generics, we'll be able to use the [`std::convert::AsRef`][1] trait to abstract over anything "
|
|
"that can be referenced as a slice."
|
|
msgstr ""
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:86
|
|
msgid ""
|
|
"```rust\n"
|
|
"use std::convert::AsRef;\n"
|
|
"use std::fmt::Debug;"
|
|
msgstr ""
|
|
"```rust\n"
|
|
"use std::convert::AsRef;\n"
|
|
"use std::fmt::Debug;"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:90
|
|
msgid ""
|
|
"fn pretty_print<T, Line, Matrix>(matrix: Matrix)\n"
|
|
"where\n"
|
|
" T: Debug,\n"
|
|
" // A line references a slice of items\n"
|
|
" Line: AsRef<[T]>,\n"
|
|
" // A matrix references a slice of lines\n"
|
|
" Matrix: AsRef<[Line]>\n"
|
|
"{\n"
|
|
" for row in matrix.as_ref() {\n"
|
|
" println!(\"{:?}\", row.as_ref());\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn pretty_print<T, Line, Matrix>(matrix: Matrix)\n"
|
|
"where\n"
|
|
" T: Debug,\n"
|
|
" // A line references a slice of items\n"
|
|
" Line: AsRef<[T]>,\n"
|
|
" // A matrix references a slice of lines\n"
|
|
" Matrix: AsRef<[Line]>\n"
|
|
"{\n"
|
|
" for row in matrix.as_ref() {\n"
|
|
" println!(\"{:?}\", row.as_ref());\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:103
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" // &[&[i32]]\n"
|
|
" pretty_print(&[&[1, 2, 3], &[4, 5, 6], &[7, 8, 9]]);\n"
|
|
" // [[&str; 2]; 2]\n"
|
|
" pretty_print([[\"a\", \"b\"], [\"c\", \"d\"]]);\n"
|
|
" // Vec<Vec<i32>>\n"
|
|
" pretty_print(vec![vec![1, 2], vec![3, 4]]);\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" // &[&[i32]]\n"
|
|
" pretty_print(&[&[1, 2, 3], &[4, 5, 6], &[7, 8, 9]]);\n"
|
|
" // [[&str; 2]; 2]\n"
|
|
" pretty_print([[\"a\", \"b\"], [\"c\", \"d\"]]);\n"
|
|
" // Vec<Vec<i32>>\n"
|
|
" pretty_print(vec![vec![1, 2], vec![3, 4]]);\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:113
|
|
msgid ""
|
|
"In addition, the type itself would not enforce that the child slices are of the same length, so such variable could contain "
|
|
"an invalid matrix."
|
|
msgstr ""
|
|
"Além disso, o próprio tipo não imporia que as slices filhas tenham o mesmo comprimento, portanto, tal variável poderia "
|
|
"conter uma array inválida."
|
|
|
|
#: src/exercises/day-1/solutions-morning.md:115
|
|
msgid "[1]: https://doc.rust-lang.org/std/convert/trait.AsRef.html"
|
|
msgstr "[1]: https://doc.rust-lang.org/std/marker/trait.Send.html"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:1
|
|
msgid "# Day 1 Afternoon Exercises"
|
|
msgstr "# Dia 1 Exercícios da Tarde"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:3
|
|
msgid "## Designing a Library"
|
|
msgstr "## Projetando uma biblioteca"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:5
|
|
msgid "([back to exercise](book-library.md))"
|
|
msgstr "([voltar ao exercício](book-library.md))"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:22
|
|
msgid ""
|
|
"// ANCHOR: setup\n"
|
|
"struct Library {\n"
|
|
" books: Vec<Book>,\n"
|
|
"}"
|
|
msgstr ""
|
|
"// ANCHOR: configuração\n"
|
|
"struct Library {\n"
|
|
" books: Vec<Book>,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:42
|
|
msgid ""
|
|
"// This makes it possible to print Book values with {}.\n"
|
|
"impl std::fmt::Display for Book {\n"
|
|
" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {\n"
|
|
" write!(f, \"{} ({})\", self.title, self.year)\n"
|
|
" }\n"
|
|
"}\n"
|
|
"// ANCHOR_END: setup"
|
|
msgstr ""
|
|
"// Isso torna possível imprimir valores de livros com {}.\n"
|
|
"impl std::fmt::Display for Book {\n"
|
|
" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {\n"
|
|
" write!(f, \"{} ({})\", self.title, self.year)\n"
|
|
" }\n"
|
|
"}\n"
|
|
"// ANCHOR_END: setup"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:50
|
|
msgid ""
|
|
"// ANCHOR: Library_new\n"
|
|
"impl Library {\n"
|
|
" fn new() -> Library {\n"
|
|
" // ANCHOR_END: Library_new\n"
|
|
" Library { books: Vec::new() }\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Library_new\n"
|
|
"impl Library {\n"
|
|
" fn new() -> Library {\n"
|
|
" // ANCHOR_END: Library_new\n"
|
|
" Library { books: Vec::new() }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:57
|
|
#, fuzzy
|
|
msgid ""
|
|
" // ANCHOR: Library_len\n"
|
|
" //fn len(self) -> usize {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
" // ANCHOR_END: Library_len\n"
|
|
" fn len(&self) -> usize {\n"
|
|
" self.books.len()\n"
|
|
" }"
|
|
msgstr ""
|
|
" // ANCHOR: Library_len\n"
|
|
" //fn len(self) -> usize {\n"
|
|
" // não implementado!()\n"
|
|
" ///}\n"
|
|
" // ANCHOR_END: Library_len\n"
|
|
" fn len(&self) -> usize {\n"
|
|
" self.books.len()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:66
|
|
#, fuzzy
|
|
msgid ""
|
|
" // ANCHOR: Library_is_empty\n"
|
|
" //fn is_empty(self) -> bool {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
" // ANCHOR_END: Library_is_empty\n"
|
|
" fn is_empty(&self) -> bool {\n"
|
|
" self.books.is_empty()\n"
|
|
" }"
|
|
msgstr ""
|
|
" // ANCHOR: Library_is_empty\n"
|
|
" //fn is_empty(self) -> bool {\n"
|
|
" // não implementado!()\n"
|
|
" ///}\n"
|
|
" // ANCHOR_END: Library_is_empty\n"
|
|
" fn is_empty(&self) -> bool {\n"
|
|
" self.books.is_empty()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:75
|
|
#, fuzzy
|
|
msgid ""
|
|
" // ANCHOR: Library_add_book\n"
|
|
" //fn add_book(self, book: Book) {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
" // ANCHOR_END: Library_add_book\n"
|
|
" fn add_book(&mut self, book: Book) {\n"
|
|
" self.books.push(book)\n"
|
|
" }"
|
|
msgstr ""
|
|
" // ANCHOR: Library_add_book\n"
|
|
" //fn add_book(self, book: Book) {\n"
|
|
" // não implementado!()\n"
|
|
" ///}\n"
|
|
" // ANCHOR_END: Library_add_book\n"
|
|
" fn add_book(&mut self, book: Book) {\n"
|
|
" self.books.push(book)\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:84
|
|
#, fuzzy
|
|
msgid ""
|
|
" // ANCHOR: Library_print_books\n"
|
|
" //fn print_books(self) {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
" // ANCHOR_END: Library_print_books\n"
|
|
" fn print_books(&self) {\n"
|
|
" for book in &self.books {\n"
|
|
" println!(\"{}\", book);\n"
|
|
" }\n"
|
|
" }"
|
|
msgstr ""
|
|
" // ANCHOR: Library_print_books\n"
|
|
" //fn print_books(self) {\n"
|
|
" // não implementado!()\n"
|
|
" ///}\n"
|
|
" // ANCHOR_END: Library_print_books\n"
|
|
" fn print_books(&self) {\n"
|
|
" for book in &self.books {\n"
|
|
" println!(\"{}\", book);\n"
|
|
" }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:95
|
|
#, fuzzy
|
|
msgid ""
|
|
" // ANCHOR: Library_oldest_book\n"
|
|
" //fn oldest_book(self) -> Option<&Book> {\n"
|
|
" // unimplemented!()\n"
|
|
" //}\n"
|
|
" // ANCHOR_END: Library_oldest_book\n"
|
|
" fn oldest_book(&self) -> Option<&Book> {\n"
|
|
" self.books.iter().min_by_key(|book| book.year)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" // ANCHOR: Library_oldest_book\n"
|
|
" //fn oldest_book(self) -> Option<&Book> {\n"
|
|
" // não implementado!()\n"
|
|
" ///}\n"
|
|
" // ANCHOR_END: Library_oldest_book\n"
|
|
" fn oldest_book(&self) -> Option<&Book> {\n"
|
|
" self.books.iter().min_by_key(|book| book.year)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:105
|
|
msgid ""
|
|
"// ANCHOR: main\n"
|
|
"// This shows the desired behavior. Uncomment the code below and\n"
|
|
"// implement the missing methods. You will need to update the\n"
|
|
"// method signatures, including the \"self\" parameter! You may\n"
|
|
"// also need to update the variable bindings within main.\n"
|
|
"fn main() {\n"
|
|
" let library = Library::new();"
|
|
msgstr ""
|
|
"// ANCHOR: main\n"
|
|
"// Isso mostra o comportamento desejado. Descomente o código abaixo e\n"
|
|
"// implementa os métodos ausentes. Você precisará atualizar o\n"
|
|
"// assinaturas de método, incluindo o parâmetro \"self\"! Você pode\n"
|
|
"// também precisa atualizar as ligações de variáveis dentro de main.\n"
|
|
"fn main() {\n"
|
|
" let library = Library::new();"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:113
|
|
#, fuzzy
|
|
msgid ""
|
|
" //println!(\"Our library is empty: {}\", library.is_empty());\n"
|
|
" //\n"
|
|
" //library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" //library.add_book(Book::new(\"Alice's Adventures in Wonderland\", 1865));\n"
|
|
" //\n"
|
|
" //library.print_books();\n"
|
|
" //\n"
|
|
" //match library.oldest_book() {\n"
|
|
" // Some(book) => println!(\"My oldest book is {book}\"),\n"
|
|
" // None => println!(\"My library is empty!\"),\n"
|
|
" //}\n"
|
|
" //\n"
|
|
" //println!(\"Our library has {} books\", library.len());\n"
|
|
"}\n"
|
|
"// ANCHOR_END: main"
|
|
msgstr ""
|
|
" //println!(\"Nossa biblioteca está vazia: {}\", library.is_empty());\n"
|
|
" //\n"
|
|
" //library.add_book(Book::new(\"O Senhor dos Anéis\", 1954));\n"
|
|
" //library.add_book(Book::new(\"As Aventuras de Alice no País das Maravilhas\", 1865));\n"
|
|
" //\n"
|
|
" //library.print_books();\n"
|
|
" //\n"
|
|
" //corresponde à library.oldest_book() {\n"
|
|
" // Some(book) => println!(\"Meu livro mais antigo é {book}\"),\n"
|
|
" // None => println!(\"Minha biblioteca está vazia!\"),\n"
|
|
" ///}\n"
|
|
" //\n"
|
|
" //println!(\"Nossa biblioteca tem {} livros\", library.len());\n"
|
|
"}\n"
|
|
"// ANCHOR_END: main"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:129
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_library_len() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" assert_eq!(library.len(), 0);\n"
|
|
" assert!(library.is_empty());"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_library_len() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" assert_eq!(library.len(), 0);\n"
|
|
" assert!(library.is_empty());"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:135
|
|
msgid ""
|
|
" library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" library.add_book(Book::new(\"Alice's Adventures in Wonderland\", 1865));\n"
|
|
" assert_eq!(library.len(), 2);\n"
|
|
" assert!(!library.is_empty());\n"
|
|
"}"
|
|
msgstr ""
|
|
" library.add_book(Book::new(\"O Senhor dos Anéis\", 1954));\n"
|
|
" library.add_book(Book::new(\"As Aventuras de Alice no País das Maravilhas\", 1865));\n"
|
|
" assert_eq!(library.len(), 2);\n"
|
|
" assert!(!library.is_empty());\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:141
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_library_is_empty() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" assert!(library.is_empty());"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_library_is_empty() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" assert!(library.is_empty());"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:146
|
|
msgid ""
|
|
" library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" assert!(!library.is_empty());\n"
|
|
"}"
|
|
msgstr ""
|
|
" library.add_book(Book::new(\"O Senhor dos Anéis\", 1954));\n"
|
|
" assert!(!library.is_empty());\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:150
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_library_print_books() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" library.add_book(Book::new(\"Alice's Adventures in Wonderland\", 1865));\n"
|
|
" // We could try and capture stdout, but let us just call the\n"
|
|
" // method to start with.\n"
|
|
" library.print_books();\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_library_print_books() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" library.add_book(Book::new(\"O Senhor dos Anéis\", 1954));\n"
|
|
" library.add_book(Book::new(\"As Aventuras de Alice no País das Maravilhas\", 1865));\n"
|
|
" // Poderíamos tentar capturar stdout, mas vamos apenas chamar o\n"
|
|
" // método para começar.\n"
|
|
" library.print_books();\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:160
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_library_oldest_book() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" assert!(library.oldest_book().is_none());"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_library_oldest_book() {\n"
|
|
" let mut library = Library::new();\n"
|
|
" assert!(library.oldest_book().is_none());"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:165
|
|
msgid ""
|
|
" library.add_book(Book::new(\"Lord of the Rings\", 1954));\n"
|
|
" assert_eq!(\n"
|
|
" library.oldest_book().map(|b| b.title.as_str()),\n"
|
|
" Some(\"Lord of the Rings\")\n"
|
|
" );"
|
|
msgstr ""
|
|
" library.add_book(Book::new(\"O Senhor dos Anéis\", 1954));\n"
|
|
" assert_eq!(\n"
|
|
" library.oldest_book().map(|b| b.title.as_str()),\n"
|
|
" Some(\"O Senhor dos Anéis\")\n"
|
|
" );"
|
|
|
|
#: src/exercises/day-1/solutions-afternoon.md:171
|
|
msgid ""
|
|
" library.add_book(Book::new(\"Alice's Adventures in Wonderland\", 1865));\n"
|
|
" assert_eq!(\n"
|
|
" library.oldest_book().map(|b| b.title.as_str()),\n"
|
|
" Some(\"Alice's Adventures in Wonderland\")\n"
|
|
" );\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" library.add_book(Book::new(\"As Aventuras de Alice no País das Maravilhas\", 1865));\n"
|
|
" assert_eq!(\n"
|
|
" library.oldest_book().map(|b| b.title.as_str()),\n"
|
|
" Some(\"As Aventuras de Alice no País das Maravilhas\")\n"
|
|
" );\n"
|
|
"}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:1
|
|
msgid "# Day 2 Morning Exercises"
|
|
msgstr "# Dia 2 Exercícios matinais"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:3
|
|
msgid "## Points and Polygons"
|
|
msgstr "## Points e Polígonos"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:5
|
|
msgid "([back to exercise](points-polygons.md))"
|
|
msgstr "([voltar ao exercício](points-polygons.md))"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:22
|
|
msgid ""
|
|
"#[derive(Debug, Copy, Clone, PartialEq, Eq)]\n"
|
|
"// ANCHOR: Point\n"
|
|
"pub struct Point {\n"
|
|
" // ANCHOR_END: Point\n"
|
|
" x: i32,\n"
|
|
" y: i32,\n"
|
|
"}"
|
|
msgstr ""
|
|
"#[derive(Debug, Copy, Clone, PartialEq, Eq)]\n"
|
|
"// ANCHOR: Point\n"
|
|
"pub struct Point {\n"
|
|
" // ANCHOR_END: Point\n"
|
|
" x: i32,\n"
|
|
" y: i32,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:30
|
|
msgid ""
|
|
"// ANCHOR: Point-impl\n"
|
|
"impl Point {\n"
|
|
" // ANCHOR_END: Point-impl\n"
|
|
" pub fn new(x: i32, y: i32) -> Point {\n"
|
|
" Point { x, y }\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Point-impl\n"
|
|
"impl Point {\n"
|
|
" // ANCHOR_END: Point-impl\n"
|
|
" pub fn new(x: i32, y: i32) -> Point {\n"
|
|
" Point { x, y }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:37
|
|
msgid ""
|
|
" pub fn magnitude(self) -> f64 {\n"
|
|
" f64::from(self.x.pow(2) + self.y.pow(2)).sqrt()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn magnitude(self) -> f64 {\n"
|
|
" f64::from(self.x.pow(2) + self.y.pow(2)).sqrt()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:41
|
|
msgid ""
|
|
" pub fn dist(self, other: Point) -> f64 {\n"
|
|
" (self - other).magnitude()\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" pub fn dist(self, other: Point) -> f64 {\n"
|
|
" (self - other).magnitude()\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:49
|
|
msgid ""
|
|
" fn add(self, other: Self) -> Self::Output {\n"
|
|
" Self {\n"
|
|
" x: self.x + other.x,\n"
|
|
" y: self.y + other.y,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" fn add(self, other: Self) -> Self::Output {\n"
|
|
" Self {\n"
|
|
" x: self.x + other.x,\n"
|
|
" y: self.y + other.y,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:57
|
|
msgid ""
|
|
"impl std::ops::Sub for Point {\n"
|
|
" type Output = Self;"
|
|
msgstr ""
|
|
"impl std::ops::Sub for Point {\n"
|
|
" type Output = Self;"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:60
|
|
msgid ""
|
|
" fn sub(self, other: Self) -> Self::Output {\n"
|
|
" Self {\n"
|
|
" x: self.x - other.x,\n"
|
|
" y: self.y - other.y,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" fn sub(self, other: Self) -> Self::Output {\n"
|
|
" Self {\n"
|
|
" x: self.x - other.x,\n"
|
|
" y: self.y - other.y,\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:68
|
|
msgid ""
|
|
"// ANCHOR: Polygon\n"
|
|
"pub struct Polygon {\n"
|
|
" // ANCHOR_END: Polygon\n"
|
|
" points: Vec<Point>,\n"
|
|
"}"
|
|
msgstr ""
|
|
"// ANCHOR: Polygon\n"
|
|
"pub struct Polygon {\n"
|
|
" // ANCHOR_END: Polygon\n"
|
|
" points: Vec<Point>,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:74
|
|
msgid ""
|
|
"// ANCHOR: Polygon-impl\n"
|
|
"impl Polygon {\n"
|
|
" // ANCHOR_END: Polygon-impl\n"
|
|
" pub fn new() -> Polygon {\n"
|
|
" Polygon { points: Vec::new() }\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Polygon-impl\n"
|
|
"impl Polygon {\n"
|
|
" // ANCHOR_END: Polygon-impl\n"
|
|
" pub fn new() -> Polygon {\n"
|
|
" Polygon { points: Vec::new() }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:81
|
|
msgid ""
|
|
" pub fn add_point(&mut self, point: Point) {\n"
|
|
" self.points.push(point);\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn add_point(&mut self, point: Point) {\n"
|
|
" self.points.push(point);\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:85
|
|
msgid ""
|
|
" pub fn left_most_point(&self) -> Option<Point> {\n"
|
|
" self.points.iter().min_by_key(|p| p.x).copied()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn left_most_point(&self) -> Option<Point> {\n"
|
|
" self.points.iter().min_by_key(|p| p.x).copied()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:89
|
|
msgid ""
|
|
" pub fn iter(&self) -> impl Iterator<Item = &Point> {\n"
|
|
" self.points.iter()\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn iter(&self) -> impl Iterator<Item = &Point> {\n"
|
|
" self.points.iter()\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:93
|
|
msgid ""
|
|
" pub fn length(&self) -> f64 {\n"
|
|
" if self.points.is_empty() {\n"
|
|
" return 0.0;\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn length(&self) -> f64 {\n"
|
|
" if self.points.is_empty() {\n"
|
|
" return 0.0;\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:98
|
|
msgid ""
|
|
" let mut result = 0.0;\n"
|
|
" let mut last_point = self.points[0];\n"
|
|
" for point in &self.points[1..] {\n"
|
|
" result += last_point.dist(*point);\n"
|
|
" last_point = *point;\n"
|
|
" }\n"
|
|
" result += last_point.dist(self.points[0]);\n"
|
|
" result\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" let mut result = 0.0;\n"
|
|
" let mut last_point = self.points[0];\n"
|
|
" for point in &self.points[1..] {\n"
|
|
" result += last_point.dist(*point);\n"
|
|
" last_point = *point;\n"
|
|
" }\n"
|
|
" result += last_point.dist(self.points[0]);\n"
|
|
" result\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:109
|
|
msgid ""
|
|
"// ANCHOR: Circle\n"
|
|
"pub struct Circle {\n"
|
|
" // ANCHOR_END: Circle\n"
|
|
" center: Point,\n"
|
|
" radius: i32,\n"
|
|
"}"
|
|
msgstr ""
|
|
"// ANCHOR: Circle\n"
|
|
"pub struct Circle {\n"
|
|
" // ANCHOR_END: Circle\n"
|
|
" center: Point,\n"
|
|
" radius: i32,\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:116
|
|
#, fuzzy
|
|
msgid ""
|
|
"// ANCHOR: Circle-impl\n"
|
|
"impl Circle {\n"
|
|
" // ANCHOR_END: Circle-impl\n"
|
|
" pub fn new(center: Point, radius: i32) -> Circle {\n"
|
|
" Circle { center, radius }\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Circle-impl\n"
|
|
"impl Círculo {\n"
|
|
" // ANCHOR_END: Implantação do círculo\n"
|
|
" pub fn new(center: Point, radius: i32) -> Circle {\n"
|
|
" Círculo { centro, raio }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:123
|
|
#, fuzzy
|
|
msgid ""
|
|
" pub fn circumference(&self) -> f64 {\n"
|
|
" 2.0 * std::f64::consts::PI * f64::from(self.radius)\n"
|
|
" }"
|
|
msgstr ""
|
|
" pub fn circunferência(&self) -> f64 {\n"
|
|
" 2.0 * std::f64::consts::PI * f64::from(self.radius)\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:127
|
|
#, fuzzy
|
|
msgid ""
|
|
" pub fn dist(&self, other: &Self) -> f64 {\n"
|
|
" self.center.dist(other.center)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" pub fn dist(&self, outro: &Self) -> f64 {\n"
|
|
" self.center.dist(outro.centro)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:132
|
|
msgid ""
|
|
"// ANCHOR: Shape\n"
|
|
"pub enum Shape {\n"
|
|
" Polygon(Polygon),\n"
|
|
" Circle(Circle),\n"
|
|
"}\n"
|
|
"// ANCHOR_END: Shape"
|
|
msgstr ""
|
|
"// ANCHOR: Shape\n"
|
|
"pub enum Shape {\n"
|
|
" Polygon(Polygon),\n"
|
|
" Circle(Circle),\n"
|
|
"}\n"
|
|
"// ANCHOR_END: Shape"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:139
|
|
msgid ""
|
|
"impl From<Polygon> for Shape {\n"
|
|
" fn from(poly: Polygon) -> Self {\n"
|
|
" Shape::Polygon(poly)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl From<Polygon> for Shape {\n"
|
|
" fn from(poly: Polygon) -> Self {\n"
|
|
" Shape:: Polygon (poly)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:145
|
|
msgid ""
|
|
"impl From<Circle> for Shape {\n"
|
|
" fn from(circle: Circle) -> Self {\n"
|
|
" Shape::Circle(circle)\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl From<Circle> for Shape {\n"
|
|
" fn from(circle: Circle) -> Self {\n"
|
|
" Shape::Circle(circle)\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:151
|
|
msgid ""
|
|
"impl Shape {\n"
|
|
" pub fn perimeter(&self) -> f64 {\n"
|
|
" match self {\n"
|
|
" Shape::Polygon(poly) => poly.length(),\n"
|
|
" Shape::Circle(circle) => circle.circumference(),\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
"impl Shape {\n"
|
|
" pub fn perimeter(&self) -> f64 {\n"
|
|
" match self {\n"
|
|
" Shape::Polygon(poly) => poly.length(),\n"
|
|
" Shape::Circle(circle) => circle.circumference(),\n"
|
|
" }\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:160
|
|
msgid ""
|
|
"// ANCHOR: unit-tests\n"
|
|
"#[cfg(test)]\n"
|
|
"mod tests {\n"
|
|
" use super::*;"
|
|
msgstr ""
|
|
"// ANCHOR: unit-tests\n"
|
|
"#[cfg(test)]\n"
|
|
"mod tests {\n"
|
|
" use super::*;"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:213
|
|
msgid ""
|
|
" #[test]\n"
|
|
" fn test_shape_perimeters() {\n"
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(Point::new(12, 13));\n"
|
|
" poly.add_point(Point::new(17, 11));\n"
|
|
" poly.add_point(Point::new(16, 16));\n"
|
|
" let shapes = vec![\n"
|
|
" Shape::from(poly),\n"
|
|
" Shape::from(Circle::new(Point::new(10, 20), 5)),\n"
|
|
" ];\n"
|
|
" let perimeters = shapes\n"
|
|
" .iter()\n"
|
|
" .map(Shape::perimeter)\n"
|
|
" .map(round_two_digits)\n"
|
|
" .collect::<Vec<_>>();\n"
|
|
" assert_eq!(perimeters, vec![15.48, 31.42]);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"// ANCHOR_END: unit-tests"
|
|
msgstr ""
|
|
" #[test]\n"
|
|
" fn test_shape_perimeters() {\n"
|
|
" let mut poly = Polygon::new();\n"
|
|
" poly.add_point(Point::new(12, 13));\n"
|
|
" poly.add_point(Point::new(17, 11));\n"
|
|
" poly.add_point(Point::new(16, 16));\n"
|
|
" let shapes = vec![\n"
|
|
" Shape::from(poly),\n"
|
|
" Shape::from(Circle::new(Point::new(10, 20), 5)),\n"
|
|
" ];\n"
|
|
" let perimeters = shapes\n"
|
|
" .iter()\n"
|
|
" .map(Shape::perimeter)\n"
|
|
" .map(round_two_digits)\n"
|
|
" .collect::<Vec<_>>();\n"
|
|
" assert_eq!(perimeters, vec![15.48, 31.42]);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"// ANCHOR_END: unit-tests"
|
|
|
|
#: src/exercises/day-2/solutions-morning.md:233 src/exercises/day-2/solutions-afternoon.md:174
|
|
msgid ""
|
|
"fn main() {}\n"
|
|
"```"
|
|
msgstr ""
|
|
"#[allow(dead_code)]\n"
|
|
"fn main() {}\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:1
|
|
msgid "# Day 2 Afternoon Exercises"
|
|
msgstr "# Dia 2 Exercícios da Tarde"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:3
|
|
msgid "## Luhn Algorithm"
|
|
msgstr "## Algoritmo de Luhn"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:5
|
|
msgid "([back to exercise](luhn.md))"
|
|
msgstr "([voltar ao exercício](luhn.md))"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:22
|
|
msgid ""
|
|
"// ANCHOR: luhn\n"
|
|
"pub fn luhn(cc_number: &str) -> bool {\n"
|
|
" // ANCHOR_END: luhn\n"
|
|
" let mut digits_seen = 0;\n"
|
|
" let mut sum = 0;\n"
|
|
" for (i, ch) in cc_number.chars().rev().filter(|&ch| ch != ' ').enumerate() {\n"
|
|
" match ch.to_digit(10) {\n"
|
|
" Some(d) => {\n"
|
|
" sum += if i % 2 == 1 {\n"
|
|
" let dd = d * 2;\n"
|
|
" dd / 10 + dd % 10\n"
|
|
" } else {\n"
|
|
" d\n"
|
|
" };\n"
|
|
" digits_seen += 1;\n"
|
|
" }\n"
|
|
" None => return false,\n"
|
|
" }\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: luhn\n"
|
|
"pub fn luhn(cc_number: &str) -> bool {\n"
|
|
" // ANCHOR_END: luhn\n"
|
|
" let mut digits_seen = 0;\n"
|
|
" let mut sum = 0;\n"
|
|
" for (i, ch) in cc_number.chars().rev().filter(|&ch| ch != ' ').enumerate() {\n"
|
|
" match ch.to_digit(10) {\n"
|
|
" Some(d) => {\n"
|
|
" sum += if i % 2 == 1 {\n"
|
|
" let dd = d * 2;\n"
|
|
" dd / 10 + dd % 10\n"
|
|
" } else {\n"
|
|
" d\n"
|
|
" };\n"
|
|
" digits_seen += 1;\n"
|
|
" }\n"
|
|
" None => return false,\n"
|
|
" }\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:42
|
|
msgid ""
|
|
" if digits_seen < 2 {\n"
|
|
" return false;\n"
|
|
" }"
|
|
msgstr ""
|
|
" if digits_seen < 2 {\n"
|
|
" return false;\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:46
|
|
msgid ""
|
|
" sum % 10 == 0\n"
|
|
"}"
|
|
msgstr ""
|
|
" sum % 10 == 0\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:49
|
|
msgid ""
|
|
"fn main() {\n"
|
|
" let cc_number = \"1234 5678 1234 5670\";\n"
|
|
" println!(\n"
|
|
" \"Is {} a valid credit card number? {}\",\n"
|
|
" cc_number,\n"
|
|
" if luhn(cc_number) { \"yes\" } else { \"no\" }\n"
|
|
" );\n"
|
|
"}"
|
|
msgstr ""
|
|
"fn main() {\n"
|
|
" let cc_number = \"1234 5678 1234 5670\";\n"
|
|
" println!(\n"
|
|
" \"Is {} a valid credit card number? {}\",\n"
|
|
" cc_number,\n"
|
|
" if luhn(cc_number) { \"yes\" } else { \"no\" }\n"
|
|
" );\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:58
|
|
msgid ""
|
|
"// ANCHOR: unit-tests\n"
|
|
"#[test]\n"
|
|
"fn test_non_digit_cc_number() {\n"
|
|
" assert!(!luhn(\"foo\"));\n"
|
|
"}"
|
|
msgstr ""
|
|
"// ANCHOR: unit-tests\n"
|
|
"#[test]\n"
|
|
"fn test_non_digit_cc_number() {\n"
|
|
" assert!(!luhn(\"foo\"));\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:89
|
|
msgid ""
|
|
"#[test]\n"
|
|
"fn test_invalid_cc_number() {\n"
|
|
" assert!(!luhn(\"4223 9826 4026 9299\"));\n"
|
|
" assert!(!luhn(\"4539 3195 0343 6476\"));\n"
|
|
" assert!(!luhn(\"8273 1232 7352 0569\"));\n"
|
|
"}\n"
|
|
"// ANCHOR_END: unit-tests\n"
|
|
"```"
|
|
msgstr ""
|
|
"#[test]\n"
|
|
"fn test_invalid_cc_number() {\n"
|
|
" assert!(!luhn(\"4223 9826 4026 9299\"));\n"
|
|
" assert!(!luhn(\"4539 3195 0343 6476\"));\n"
|
|
" assert!(!luhn(\"8273 1232 7352 0569\"));\n"
|
|
"}\n"
|
|
"// ANCHOR_END: unit-tests\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:98
|
|
msgid "## Strings and Iterators"
|
|
msgstr "## Strings e iteradores"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:100
|
|
msgid "([back to exercise](strings-iterators.md))"
|
|
msgstr "([voltar ao exercício](strings-iterators.md))"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:117
|
|
msgid ""
|
|
"// ANCHOR: prefix_matches\n"
|
|
"pub fn prefix_matches(prefix: &str, request_path: &str) -> bool {\n"
|
|
" // ANCHOR_END: prefix_matches\n"
|
|
" let prefixes = prefix.split('/');\n"
|
|
" let request_paths = request_path\n"
|
|
" .split('/')\n"
|
|
" .map(|p| Some(p))\n"
|
|
" .chain(std::iter::once(None));"
|
|
msgstr ""
|
|
"// ANCHOR: prefix_matches\n"
|
|
"pub fn prefix_matches(prefix: &str, request_path: &str) -> bool {\n"
|
|
" // ANCHOR_END: prefix_matches\n"
|
|
" let prefixes = prefix.split('/');\n"
|
|
" let request_paths = request_path\n"
|
|
" .split('/')\n"
|
|
" .map(|p| Some(p))\n"
|
|
" .chain(std::iter::once(None));"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:126
|
|
msgid ""
|
|
" for (prefix, request_path) in prefixes.zip(request_paths) {\n"
|
|
" match request_path {\n"
|
|
" Some(request_path) => {\n"
|
|
" if (prefix != \"*\") && (prefix != request_path) {\n"
|
|
" return false;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" None => return false,\n"
|
|
" }\n"
|
|
" }\n"
|
|
" true\n"
|
|
"}"
|
|
msgstr ""
|
|
" for (prefix, request_path) in prefixes.zip(request_paths) {\n"
|
|
" match request_path {\n"
|
|
" Some(request_path) => {\n"
|
|
" if (prefix != \"*\") && (prefix != request_path) {\n"
|
|
" return false;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" None => return false,\n"
|
|
" }\n"
|
|
" }\n"
|
|
" true\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:139
|
|
msgid ""
|
|
"// ANCHOR: unit-tests\n"
|
|
"#[test]\n"
|
|
"fn test_matches_without_wildcard() {\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc-123\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc/books\"));"
|
|
msgstr ""
|
|
"// ANCHOR: unit-tests\n"
|
|
"#[test]\n"
|
|
"fn test_matches_without_wildcard() {\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc-123\"));\n"
|
|
" assert!(prefix_matches(\"/v1/publishers\", \"/v1/publishers/abc/books\"));"
|
|
|
|
#: src/exercises/day-2/solutions-afternoon.md:166
|
|
msgid ""
|
|
" assert!(!prefix_matches(\"/v1/publishers/*/books\", \"/v1/publishers\"));\n"
|
|
" assert!(!prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/booksByAuthor\"\n"
|
|
" ));\n"
|
|
"}\n"
|
|
"// ANCHOR_END: unit-tests"
|
|
msgstr ""
|
|
" assert!(!prefix_matches(\"/v1/publishers/*/books\", \"/v1/publishers\"));\n"
|
|
" assert!(!prefix_matches(\n"
|
|
" \"/v1/publishers/*/books\",\n"
|
|
" \"/v1/publishers/foo/booksByAuthor\"\n"
|
|
" ));\n"
|
|
"}\n"
|
|
"// ANCHOR_END: unit-tests"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:1
|
|
msgid "# Day 3 Morning Exercise"
|
|
msgstr "# Dia 3 Exercício matinal"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:3
|
|
msgid "## A Simple GUI Library"
|
|
msgstr "## Uma biblioteca GUI simples"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:5
|
|
msgid "([back to exercise](simple-gui.md))"
|
|
msgstr "([voltar ao exercício](simples-gui.md))"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:22
|
|
msgid ""
|
|
"// ANCHOR: setup\n"
|
|
"pub trait Widget {\n"
|
|
" /// Natural width of `self`.\n"
|
|
" fn width(&self) -> usize;"
|
|
msgstr ""
|
|
"// ANCHOR: setup\n"
|
|
"pub trait Widget {\n"
|
|
" /// Natural width of `self`.\n"
|
|
" fn width(&self) -> usize;"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:82
|
|
msgid "// ANCHOR_END: setup"
|
|
msgstr "// ANCHOR_END: setup"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:84
|
|
msgid ""
|
|
"// ANCHOR: Window-width\n"
|
|
"impl Widget for Window {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" // ANCHOR_END: Window-width\n"
|
|
" std::cmp::max(\n"
|
|
" self.title.chars().count(),\n"
|
|
" self.widgets.iter().map(|w| w.width()).max().unwrap_or(0),\n"
|
|
" )\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Window-width\n"
|
|
"impl Widget for Window {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" // ANCHOR_END: Window-width\n"
|
|
" std::cmp::max(\n"
|
|
" self.title.chars().count(),\n"
|
|
" self.widgets.iter().map(|w| w.width()).max().unwrap_or(0),\n"
|
|
" )\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:94
|
|
msgid ""
|
|
" // ANCHOR: Window-draw_into\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" // ANCHOR_END: Window-draw_into\n"
|
|
" let mut inner = String::new();\n"
|
|
" for widget in &self.widgets {\n"
|
|
" widget.draw_into(&mut inner);\n"
|
|
" }"
|
|
msgstr ""
|
|
" // ANCHOR: Window-draw_into\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" // ANCHOR_END: Window-draw_into\n"
|
|
" let mut inner = String::new();\n"
|
|
" for widget in &self.widgets {\n"
|
|
" widget.draw_into(&mut inner);\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:102
|
|
msgid " let window_width = self.width();"
|
|
msgstr " let window_width = self.width();"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:104
|
|
msgid ""
|
|
" // TODO: after learning about error handling, you can change\n"
|
|
" // draw_into to return Result<(), std::fmt::Error>. Then use\n"
|
|
" // the ?-operator here instead of .unwrap().\n"
|
|
" writeln!(buffer, \"+-{:-<window_width$}-+\", \"\").unwrap();\n"
|
|
" writeln!(buffer, \"| {:^window_width$} |\", &self.title).unwrap();\n"
|
|
" writeln!(buffer, \"+={:=<window_width$}=+\", \"\").unwrap();\n"
|
|
" for line in inner.lines() {\n"
|
|
" writeln!(buffer, \"| {:window_width$} |\", line).unwrap();\n"
|
|
" }\n"
|
|
" writeln!(buffer, \"+-{:-<window_width$}-+\", \"\").unwrap();\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" // TODO: depois de aprender sobre tratamento de erros, você pode alterar\n"
|
|
" // draw_into para retornar Result<(), std::fmt::Error>. Então use\n"
|
|
" // o operador ? aqui em vez de .unwrap().\n"
|
|
" writeln!(buffer, \"+-{:-<window_width$}-+\", \"\").unwrap();\n"
|
|
" writeln!(buffer, \"| {:^window_width$} |\", &self.title).unwrap();\n"
|
|
" writeln!(buffer, \"+={:=<window_width$}=+\", \"\").unwrap();\n"
|
|
" for line in inner.lines() {\n"
|
|
" writeln!(buffer, \"| {:window_width$} |\", line).unwrap();\n"
|
|
" }\n"
|
|
" writeln!(buffer, \"+-{:-<window_width$}-+\", \"\").unwrap();\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:117
|
|
msgid ""
|
|
"// ANCHOR: Button-width\n"
|
|
"impl Widget for Button {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" // ANCHOR_END: Button-width\n"
|
|
" self.label.width() + 8 // add a bit of padding\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Button-width\n"
|
|
"impl Widget for Button {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" // ANCHOR_END: Button-width\n"
|
|
" self.label.width() + 8 // add a bit of padding\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:124
|
|
msgid ""
|
|
" // ANCHOR: Button-draw_into\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" // ANCHOR_END: Button-draw_into\n"
|
|
" let width = self.width();\n"
|
|
" let mut label = String::new();\n"
|
|
" self.label.draw_into(&mut label);"
|
|
msgstr ""
|
|
" // ANCHOR: Button-draw_into\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" // ANCHOR_END: Button-draw_into\n"
|
|
" let width = self.width();\n"
|
|
" let mut label = String::new();\n"
|
|
" self.label.draw_into(&mut label);"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:131
|
|
msgid ""
|
|
" writeln!(buffer, \"+{:-<width$}+\", \"\").unwrap();\n"
|
|
" for line in label.lines() {\n"
|
|
" writeln!(buffer, \"|{:^width$}|\", &line).unwrap();\n"
|
|
" }\n"
|
|
" writeln!(buffer, \"+{:-<width$}+\", \"\").unwrap();\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" writeln!(buffer, \"+{:-<width$}+\", \"\").unwrap();\n"
|
|
" for line in label.lines() {\n"
|
|
" writeln!(buffer, \"|{:^width$}|\", &line).unwrap();\n"
|
|
" }\n"
|
|
" writeln!(buffer, \"+{:-<width$}+\", \"\").unwrap();\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:139
|
|
msgid ""
|
|
"// ANCHOR: Label-width\n"
|
|
"impl Widget for Label {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" // ANCHOR_END: Label-width\n"
|
|
" self.label\n"
|
|
" .lines()\n"
|
|
" .map(|line| line.chars().count())\n"
|
|
" .max()\n"
|
|
" .unwrap_or(0)\n"
|
|
" }"
|
|
msgstr ""
|
|
"// ANCHOR: Label-width\n"
|
|
"impl Widget for Label {\n"
|
|
" fn width(&self) -> usize {\n"
|
|
" // ANCHOR_END: Label-width\n"
|
|
" self.label\n"
|
|
" .lines()\n"
|
|
" .map(|line| line.chars().count())\n"
|
|
" .max()\n"
|
|
" .unwrap_or(0)\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:150
|
|
msgid ""
|
|
" // ANCHOR: Label-draw_into\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" // ANCHOR_END: Label-draw_into\n"
|
|
" writeln!(buffer, \"{}\", &self.label).unwrap();\n"
|
|
" }\n"
|
|
"}"
|
|
msgstr ""
|
|
" // ANCHOR: Label-draw_into\n"
|
|
" fn draw_into(&self, buffer: &mut dyn std::fmt::Write) {\n"
|
|
" // ANCHOR_END: Label-draw_into\n"
|
|
" writeln!(buffer, \"{}\", &self.label).unwrap();\n"
|
|
" }\n"
|
|
"}"
|
|
|
|
#: src/exercises/day-3/solutions-morning.md:157
|
|
#, fuzzy
|
|
msgid ""
|
|
"// ANCHOR: main\n"
|
|
"fn main() {\n"
|
|
" let mut window = Window::new(\"Rust GUI Demo 1.23\");\n"
|
|
" window.add_widget(Box::new(Label::new(\"This is a small text GUI demo.\")));\n"
|
|
" window.add_widget(Box::new(Button::new(\n"
|
|
" \"Click me!\",\n"
|
|
" Box::new(|| println!(\"You clicked the button!\")),\n"
|
|
" )));\n"
|
|
" window.draw();\n"
|
|
"}\n"
|
|
"// ANCHOR_END: main\n"
|
|
"```"
|
|
msgstr ""
|
|
"// ANCHOR: main\n"
|
|
"fn main() {\n"
|
|
" let mut window = Window::new(\"Rust GUI Demo 1.23\");\n"
|
|
" window.add_widget(Box::new(Label::new(\"Esta é uma pequena demonstração de GUI de texto.\")));\n"
|
|
" window.add_widget(Caixa::new(Botão::new(\n"
|
|
" \"Clique em mim!\",\n"
|
|
" Box::new(|| println!(\"Você clicou no botão!\")),\n"
|
|
" )));\n"
|
|
" window.draw();\n"
|
|
"}\n"
|
|
"// ANCHOR_END: main\n"
|
|
"```"
|
|
|
|
#: src/exercises/day-3/solutions-afternoon.md:1
|
|
msgid "# Day 3 Afternoon Exercises"
|
|
msgstr "# Dia 3 Exercícios da Tarde"
|
|
|
|
#: src/exercises/day-3/solutions-afternoon.md:3
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msgid "## Safe FFI Wrapper"
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msgstr "## Invólucro FFI Seguro"
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#: src/exercises/day-3/solutions-afternoon.md:5
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msgid "([back to exercise](safe-ffi-wrapper.md))"
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msgstr "([voltar ao exercício](safe-ffi-wrapper.md))"
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#: src/exercises/day-3/solutions-afternoon.md:22
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msgid ""
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"// ANCHOR: ffi\n"
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"mod ffi {\n"
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" use std::os::raw::{c_char, c_int, c_long, c_ulong, c_ushort};"
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msgstr ""
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"// ANCHOR: ffi\n"
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"mod ffi {\n"
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" use std::os::raw::{c_char, c_int, c_long, c_ulong, c_ushort};"
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#: src/exercises/day-3/solutions-afternoon.md:53
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msgid ""
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"#[derive(Debug)]\n"
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"struct DirectoryIterator {\n"
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" path: CString,\n"
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" dir: *mut ffi::DIR,\n"
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"}\n"
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"// ANCHOR_END: ffi"
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msgstr ""
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"#[derive(Debug)]\n"
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"struct DirectoryIterator {\n"
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" path: CString,\n"
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" dir: *mut ffi::DIR,\n"
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"}\n"
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"// ANCHOR_END: ffi"
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#: src/exercises/day-3/solutions-afternoon.md:60
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msgid ""
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"// ANCHOR: DirectoryIterator\n"
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"impl DirectoryIterator {\n"
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" fn new(path: &str) -> Result<DirectoryIterator, String> {\n"
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" // Call opendir and return a Ok value if that worked,\n"
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" // otherwise return Err with a message.\n"
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" // ANCHOR_END: DirectoryIterator\n"
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" let path = CString::new(path).map_err(|err| format!(\"Invalid path: {err}\"))?;\n"
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" // SAFETY: path.as_ptr() cannot be NULL.\n"
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" let dir = unsafe { ffi::opendir(path.as_ptr()) };\n"
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" if dir.is_null() {\n"
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" Err(format!(\"Could not open {:?}\", path))\n"
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" } else {\n"
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" Ok(DirectoryIterator { path, dir })\n"
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" }\n"
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" }\n"
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"}"
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msgstr ""
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"// ANCHOR: DirectoryIterator\n"
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"impl DirectoryIterator {\n"
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" fn new(path: &str) -> Result<DirectoryIterator, String> {\n"
|
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" // Call opendir and return a Ok value if that worked,\n"
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" // otherwise return Err with a message.\n"
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" // ANCHOR_END: DirectoryIterator\n"
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" let path = CString::new(path).map_err(|err| format!(\"Invalid path: {err}\"))?;\n"
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" // SAFETY: path.as_ptr() cannot be NULL.\n"
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" let dir = unsafe { ffi::opendir(path.as_ptr()) };\n"
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" if dir.is_null() {\n"
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" Err(format!(\"Could not open {:?}\", path))\n"
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" } else {\n"
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" Ok(DirectoryIterator { path, dir })\n"
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" }\n"
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" }\n"
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"}"
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#: src/exercises/day-3/solutions-afternoon.md:77
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msgid ""
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"// ANCHOR: Iterator\n"
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"impl Iterator for DirectoryIterator {\n"
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" type Item = OsString;\n"
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" fn next(&mut self) -> Option<OsString> {\n"
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" // Keep calling readdir until we get a NULL pointer back.\n"
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" // ANCHOR_END: Iterator\n"
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" // SAFETY: self.dir is never NULL.\n"
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" let dirent = unsafe { ffi::readdir(self.dir) };\n"
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" if dirent.is_null() {\n"
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" // We have reached the end of the directory.\n"
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" return None;\n"
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" }\n"
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" // SAFETY: dirent is not NULL and dirent.d_name is NUL\n"
|
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" // terminated.\n"
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" let d_name = unsafe { CStr::from_ptr((*dirent).d_name.as_ptr()) };\n"
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" let os_str = OsStr::from_bytes(d_name.to_bytes());\n"
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" Some(os_str.to_owned())\n"
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" }\n"
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"}"
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msgstr ""
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"// ANCHOR: Iterator\n"
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"impl Iterator for DirectoryIterator {\n"
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" type Item = OsString;\n"
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" fn next(&mut self) -> Option<OsString> {\n"
|
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" // Keep calling readdir until we get a NULL pointer back.\n"
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" // ANCHOR_END: Iterator\n"
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" // SAFETY: self.dir is never NULL.\n"
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" let dirent = unsafe { ffi::readdir(self.dir) };\n"
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" if dirent.is_null() {\n"
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" // We have reached the end of the directory.\n"
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" return None;\n"
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" }\n"
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" // SAFETY: dirent is not NULL and dirent.d_name is NUL\n"
|
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" // terminated.\n"
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" let d_name = unsafe { CStr::from_ptr((*dirent).d_name.as_ptr()) };\n"
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" let os_str = OsStr::from_bytes(d_name.to_bytes());\n"
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" Some(os_str.to_owned())\n"
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" }\n"
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"}"
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#: src/exercises/day-3/solutions-afternoon.md:97
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msgid ""
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"// ANCHOR: Drop\n"
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"impl Drop for DirectoryIterator {\n"
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" fn drop(&mut self) {\n"
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" // Call closedir as needed.\n"
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" // ANCHOR_END: Drop\n"
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" if !self.dir.is_null() {\n"
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" // SAFETY: self.dir is not NULL.\n"
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" if unsafe { ffi::closedir(self.dir) } != 0 {\n"
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" panic!(\"Could not close {:?}\", self.path);\n"
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" }\n"
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" }\n"
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" }\n"
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"}"
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msgstr ""
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"// ANCHOR: Drop\n"
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"impl Drop for DirectoryIterator {\n"
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" fn drop(&mut self) {\n"
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" // Call closedir as needed.\n"
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" // ANCHOR_END: Drop\n"
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" if !self.dir.is_null() {\n"
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" // SAFETY: self.dir is not NULL.\n"
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" if unsafe { ffi::closedir(self.dir) } != 0 {\n"
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" panic!(\"Could not close {:?}\", self.path);\n"
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" }\n"
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" }\n"
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" }\n"
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"}"
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#: src/exercises/day-3/solutions-afternoon.md:111
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msgid ""
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"// ANCHOR: main\n"
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"fn main() -> Result<(), String> {\n"
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" let iter = DirectoryIterator::new(\".\")?;\n"
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" println!(\"files: {:#?}\", iter.collect::<Vec<_>>());\n"
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" Ok(())\n"
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"}\n"
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"// ANCHOR_END: main\n"
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"```"
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msgstr ""
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"// ANCHOR: main\n"
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"fn main() -> Result<(), String> {\n"
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" let iter = DirectoryIterator::new(\".\")?;\n"
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" println!(\"files: {:#?}\", iter.collect::<Vec<_>>());\n"
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" Ok(())\n"
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"}\n"
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"// ANCHOR_END: main\n"
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"```"
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#: src/exercises/day-4/solutions-morning.md:1
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msgid "# Day 4 Morning Exercise"
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msgstr "# Dia 4 Exercício matinal"
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#: src/exercises/day-4/solutions-morning.md:3
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msgid "## Dining Philosophers"
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msgstr "## Jantar com Filósofos"
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#: src/exercises/day-4/solutions-morning.md:5
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msgid "([back to exercise](dining-philosophers.md))"
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msgstr "([voltar ao exercício](dining-philosophers.md))"
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#: src/exercises/day-4/solutions-morning.md:22
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msgid ""
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"// ANCHOR: Philosopher\n"
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"use std::sync::mpsc;\n"
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"use std::sync::{Arc, Mutex};\n"
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"use std::thread;\n"
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"use std::time::Duration;"
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msgstr ""
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"// ANCHOR: Philosopher\n"
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"use std::sync::mpsc;\n"
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"use std::sync::{Arc, Mutex};\n"
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"use std::thread;\n"
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"use std::time::Duration;"
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#: src/exercises/day-4/solutions-morning.md:30
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msgid ""
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"struct Philosopher {\n"
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" name: String,\n"
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" // ANCHOR_END: Philosopher\n"
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" left_fork: Arc<Mutex<Fork>>,\n"
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" right_fork: Arc<Mutex<Fork>>,\n"
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" thoughts: mpsc::SyncSender<String>,\n"
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"}"
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msgstr ""
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"struct Philosopher {\n"
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" name: String,\n"
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" // ANCHOR_END: Philosopher\n"
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" left_fork: Arc<Mutex<Fork>>,\n"
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" right_fork: Arc<Mutex<Fork>>,\n"
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" thoughts: mpsc::SyncSender<String>,\n"
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"}"
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#: src/exercises/day-4/solutions-morning.md:38
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msgid ""
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"// ANCHOR: Philosopher-think\n"
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"impl Philosopher {\n"
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" fn think(&self) {\n"
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" self.thoughts\n"
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" .send(format!(\"Eureka! {} has a new idea!\", &self.name))\n"
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" .unwrap();\n"
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" }\n"
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" // ANCHOR_END: Philosopher-think"
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msgstr ""
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"// ANCHOR: Philosopher-think\n"
|
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"impl Philosopher {\n"
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" fn think(&self) {\n"
|
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" self.thoughts\n"
|
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" .send(format!(\"Eureka! {} has a new idea!\", &self.name))\n"
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" .unwrap();\n"
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" }\n"
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" // ANCHOR_END: Philosopher-think"
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|
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#: src/exercises/day-4/solutions-morning.md:47
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msgid ""
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" // ANCHOR: Philosopher-eat\n"
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" fn eat(&self) {\n"
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" // ANCHOR_END: Philosopher-eat\n"
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" println!(\"{} is trying to eat\", &self.name);\n"
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" let left = self.left_fork.lock().unwrap();\n"
|
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" let right = self.right_fork.lock().unwrap();"
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msgstr ""
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" // ANCHOR: Philosopher-eat\n"
|
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" fn eat(&self) {\n"
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" // ANCHOR_END: Philosopher-eat\n"
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" println!(\"{} is trying to eat\", &self.name);\n"
|
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" let left = self.left_fork.lock().unwrap();\n"
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" let right = self.right_fork.lock().unwrap();"
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#: src/exercises/day-4/solutions-morning.md:54
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msgid ""
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" // ANCHOR: Philosopher-eat-end\n"
|
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" println!(\"{} is eating...\", &self.name);\n"
|
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" thread::sleep(Duration::from_millis(10));\n"
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" }\n"
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"}"
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msgstr ""
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" // ANCHOR: Philosopher-eat-end\n"
|
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" println!(\"{} is eating...\", &self.name);\n"
|
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" thread::sleep(Duration::from_millis(10));\n"
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" }\n"
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"}"
|
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|
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#: src/exercises/day-4/solutions-morning.md:63
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msgid ""
|
|
"fn main() {\n"
|
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" // ANCHOR_END: Philosopher-eat-end\n"
|
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" let (tx, rx) = mpsc::sync_channel(10);"
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msgstr ""
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"fn main() {\n"
|
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" // ANCHOR_END: Philosopher-eat-end\n"
|
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" let (tx, rx) = mpsc::sync_channel(10);"
|
|
|
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#: src/exercises/day-4/solutions-morning.md:67
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msgid ""
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|
" let forks = (0..PHILOSOPHERS.len())\n"
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|
" .map(|_| Arc::new(Mutex::new(Fork)))\n"
|
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" .collect::<Vec<_>>();"
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msgstr ""
|
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" let forks = (0..PHILOSOPHERS.len())\n"
|
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" .map(|_| Arc::new(Mutex::new(Fork)))\n"
|
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" .collect::<Vec<_>>();"
|
|
|
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#: src/exercises/day-4/solutions-morning.md:71
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msgid ""
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" for i in 0..forks.len() {\n"
|
|
" let tx = tx.clone();\n"
|
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" let mut left_fork = forks[i].clone();\n"
|
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" let mut right_fork = forks[(i + 1) % forks.len()].clone();"
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msgstr ""
|
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" for i in 0..forks.len() {\n"
|
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" let tx = tx.clone();\n"
|
|
" let mut left_fork = forks[i].clone();\n"
|
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" let mut right_fork = forks[(i + 1) % forks.len()].clone();"
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|
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#: src/exercises/day-4/solutions-morning.md:76
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msgid ""
|
|
" // To avoid a deadlock, we have to break the symmetry\n"
|
|
" // somewhere. This will swap the forks without deinitializing\n"
|
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" // either of them.\n"
|
|
" if i == forks.len() - 1 {\n"
|
|
" std::mem::swap(&mut left_fork, &mut right_fork);\n"
|
|
" }"
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msgstr ""
|
|
" // Para evitar um impasse, temos que quebrar a simetria\n"
|
|
" // algum lugar. Isso irá trocar os garfos sem desinicializar\n"
|
|
" // qualquer um deles.\n"
|
|
" if i == forks.len() - 1 {\n"
|
|
" std::mem::swap(&mut left_fork, &mut right_fork);\n"
|
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" }"
|
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|
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#: src/exercises/day-4/solutions-morning.md:83
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msgid ""
|
|
" let philosopher = Philosopher {\n"
|
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" name: PHILOSOPHERS[i].to_string(),\n"
|
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" thoughts: tx,\n"
|
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" left_fork,\n"
|
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" right_fork,\n"
|
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" };"
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msgstr ""
|
|
" let philosopher = Philosopher {\n"
|
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" name: PHILOSOPHERS[i].to_string(),\n"
|
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" thoughts: tx,\n"
|
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" left_fork,\n"
|
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" right_fork,\n"
|
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" };"
|
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|
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#: src/exercises/day-4/solutions-morning.md:90
|
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msgid ""
|
|
" thread::spawn(move || {\n"
|
|
" for _ in 0..100 {\n"
|
|
" philosopher.eat();\n"
|
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" philosopher.think();\n"
|
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" }\n"
|
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" });\n"
|
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" }"
|
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msgstr ""
|
|
" thread::spawn(move || {\n"
|
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" for _ in 0..100 {\n"
|
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" philosopher.eat();\n"
|
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" philosopher.think();\n"
|
|
" }\n"
|
|
" });\n"
|
|
" }"
|
|
|
|
#: src/exercises/day-4/solutions-morning.md:98
|
|
msgid ""
|
|
" drop(tx);\n"
|
|
" for thought in rx {\n"
|
|
" println!(\"{thought}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
|
msgstr ""
|
|
" drop(tx);\n"
|
|
" for thought in rx {\n"
|
|
" println!(\"{thought}\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"```"
|
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|
|
#~ msgid ""
|
|
#~ "* `Box` is like `std::unique_ptr` in C++.\n"
|
|
#~ "* In the above example, you can even leave out the `*` in the `println!` statement thanks to `Deref`."
|
|
#~ msgstr ""
|
|
#~ "* `Box` é como `std::unique_ptr` em C++.\n"
|
|
#~ "* No exemplo acima, você pode até deixar de fora o `*` na declaração `println!` graças a `Deref`."
|