What's New in Rust 1.40

Jon and Ben review the changes introduced in Rust 1.40.

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• [@00:52] - #[non_exhaustive] structs, enums, and variants
• [@12:31] - Macro and attribute improvements
  • StackOverflow: How do I create a function-like procedural macro?
• [@24:33] - Borrow check migration warnings are hard errors in Rust 2015
• [@25:21] - More const fns in the standard library
  • const-hack issue label
  • Rustacean Station: Compile-Time Evaluation, Interpreted Rust, and UB Sanitizing: Talking to Oliver Scherer about Miri
• [@28:31] - The todo! macro
• [@34:28] - slice::repeat
• [@35:09] - mem::take
• [@36:55] - BTreeMap::get_key_value and HashMap::get_key_value
  • Ivan Dubrov: Tricking the HashMap
• [@40:24] - Standardized functions for converting floating-point types to byte arrays of specific endianness
  • Proposed Rust RFC: Standard lazy types
  • Rust PR: Stabilize the matches! macro
• [@45:55] - Cargo tweaks

Intro Theme: Aerocity

Audio Editing: Jeremy Jung

Hosting Infrastructure: Jon Gjengset

Show Notes: Ben Striegel

Hosts: Jon Gjengset and Ben Striegel