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Mention ADT and zero-cost abstractions among modern features

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Marko Zagar
2023-01-12 18:50:46 +01:00
parent 20601319f2
commit 7a2ffda266
1 changed files with 10 additions and 0 deletions
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src/why-rust/modern.md
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@@ -7,6 +7,7 @@ Rust is built with all the experience gained in the last 40 years.
* Enums and pattern matching. * Enums and pattern matching.
* Generics. * Generics.
* No overhead FFI. * No overhead FFI.
* Zero-cost abstractions.
## Tooling ## Tooling
@@ -18,6 +19,15 @@ Rust is built with all the experience gained in the last 40 years.
Key points: Key points:
* Zero-cost abstractions, similar to C++, means that you don't have to 'pay'
for higher-level programming constructs with memory or CPU. For example,
writing a loop using `for` should result in roughly the same low level
instructions as using the `.iter().fold()` construct.
* It may be worth mentioning that Rust enums are 'Algebraic Data Types', also
known as 'sum types', which allow the type system to express things like
`Option<T>` and `Result<T, E>`.
* Remind people to read the errors --- many developers have gotten used to * Remind people to read the errors --- many developers have gotten used to
ignore lengthly compiler output. The Rust compiler is significantly more ignore lengthly compiler output. The Rust compiler is significantly more
talkative than other compilers. It will often provide you with _actionable_ talkative than other compilers. It will often provide you with _actionable_