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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
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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.
* Generics.
* No overhead FFI.
* Zero-cost abstractions.
## Tooling
@ -18,6 +19,15 @@ Rust is built with all the experience gained in the last 40 years.
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
ignore lengthly compiler output. The Rust compiler is significantly more
talkative than other compilers. It will often provide you with _actionable_