rust/compiler/rustc_builtin_macros
bors dd2559e08e Auto merge of #116167 - RalfJung:structural-eq, r=lcnr
remove StructuralEq trait

The documentation given for the trait is outdated: *all* function pointers implement `PartialEq` and `Eq` these days. So the `StructuralEq` trait doesn't really seem to have any reason to exist any more.

One side-effect of this PR is that we allow matching on some consts that do not implement `Eq`. However, we already allowed matching on floats and consts containing floats, so this is not new, it is just allowed in more cases now. IMO it makes no sense at all to allow float matching but also sometimes require an `Eq` instance. If we want to require `Eq` we should adjust https://github.com/rust-lang/rust/pull/115893 to check for `Eq`, and rule out float matching for good.

Fixes https://github.com/rust-lang/rust/issues/115881
2024-01-26 00:17:00 +00:00
..
src Auto merge of #116167 - RalfJung:structural-eq, r=lcnr 2024-01-26 00:17:00 +00:00
Cargo.toml Clean up rustc_*/Cargo.toml. 2023-10-30 08:46:02 +11:00
messages.ftl Keep fluent slugs in alphabetical order 2023-10-05 16:17:32 +02:00