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Remove macro hygiene from hello world slide (#2908)

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Nicole L
2025-09-18 17:22:15 -07:00
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parent b222e4fa34
commit 3eae5be59e
1 changed files with 4 additions and 4 deletions
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8
src/types-and-values/hello-world.md
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@@ -19,7 +19,7 @@ What you see:
- The `main` function is the entry point of the program. - The `main` function is the entry point of the program.
- Blocks are delimited by curly braces like in C and C++. - Blocks are delimited by curly braces like in C and C++.
- Statements end with `;`. - Statements end with `;`.
- Rust has hygienic macros, `println!` is an example of this. - `println` is a macro, indicated by the `!` in the invocation.
- Rust strings are UTF-8 encoded and can contain any Unicode character. - Rust strings are UTF-8 encoded and can contain any Unicode character.
<details> <details>
@@ -37,9 +37,9 @@ Key points:
- Rust uses macros for situations where you want to have a variable number of - Rust uses macros for situations where you want to have a variable number of
arguments (no function [overloading](../control-flow-basics/functions.md)). arguments (no function [overloading](../control-flow-basics/functions.md)).
- Macros being 'hygienic' means they don't accidentally capture identifiers from - `println!` is a macro because it needs to handle an arbitrary number of
the scope they are used in. Rust macros are actually only arguments based on the format string, which can't be done with a regular
[partially hygienic](https://veykril.github.io/tlborm/decl-macros/minutiae/hygiene.html). function. Otherwise it can be treated like a regular function.
- Rust is multi-paradigm. For example, it has powerful - Rust is multi-paradigm. For example, it has powerful
[object-oriented programming features](https://doc.rust-lang.org/book/ch17-00-oop.html), [object-oriented programming features](https://doc.rust-lang.org/book/ch17-00-oop.html),