rust/compiler/rustc_mir_build
dianne 0eb3b110f0 lower deref patterns on boxes using built-in derefs
This allows deref patterns to move out of boxes.

Implementation-wise, I've opted to put the information of whether a
deref pattern uses a built-in deref or a method call in the THIR. It'd
be a bit less code to check `.is_box()` everywhere, but I think this way
feels more robust (and we don't have a `mutability` field in the THIR
that we ignore when the smart pointer's a box). I'm not sure about the
naming (or using `ByRef`), though.
2025-04-24 14:25:27 -07:00
..