Guillaume Boisseau 5ff9022306 Rollup merge of #121059 - compiler-errors:extension, r=davidtwco,Nilstrieb ... Add and use a simple extension trait derive macro in the compiler Adds `#[extension]` to `rustc_macros` for implementing an extension trait. This expands an impl (with an optional visibility) into two parallel trait + impl definitions. before: ```rust pub trait Extension { fn a(); } impl Extension for () { fn a() {} } ``` to: ```rust #[extension] pub impl Extension for () { fn a() {} } ``` Opted to just implement it by hand because I couldn't figure if there was a "canonical" choice of extension trait macro in the ecosystem. It's really lightweight anyways, and can always be changed. I'm interested in adding this because I'd like to later split up the large `TypeErrCtxtExt` traits into several different files. This should make it one step easier.		2024-02-17 11:23:04 +01:00
..
src	Rollup merge of #121059 - compiler-errors:extension, r=davidtwco,Nilstrieb	2024-02-17 11:23:04 +01:00
Cargo.toml	avoid always rerunning in case of a cycle	2024-01-09 11:19:34 +01:00
messages.ftl	make better async fn kind errors	2024-02-15 15:59:35 +00:00