e009: Composing a Rustic tune
Getting into the nitty-gritty with Rust's traits.
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Show Notes
Notes
Last time, we looked at generics and traits at a high level. This time, we dig deeper on traits, looking specifically at std::iter::Iterator as an example of a powerful trait that can be composed across types, and then at how we might compose multiple traits on a single type.
We also talk about the syntax for traits, the use of marker traits, some of the things you can’t presently do with traits, and even just a smidge about the future of traits in Rust. All that in less than 20 minutes!
You’ll find today’s source example fairly interesting, I think: it’s just one type, but it uses almost every concept discussed on the show today!
Links
- Nick Cameron: “Thoughts on Rust in 2016”
- “Upcoming breakage starting in Rust 1.7, from RFCs 1214 and 136”
- The Rust Book:
- Traits
- Trait objects (dynamic dispatch)
- The Rust reference:
- RFC: impl specialization
- Aaron Turon: “Specialize to reuse”
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