rust/compiler/rustc_middle
David Wood 86ab2b60cd
hir_analysis: add {Meta,Pointee}Sized bounds
Opting-out of `Sized` with `?Sized` is now equivalent to adding a
`MetaSized` bound, and adding a `MetaSized` or `PointeeSized` bound
is equivalent to removing the default `Sized` bound - this commit
implements this change in `rustc_hir_analysis::hir_ty_lowering`.

`MetaSized` is also added as a supertrait of all traits, as this is
necessary to preserve backwards compatibility.

Unfortunately, non-global where clauses being preferred over item bounds
(where `PointeeSized` bounds would be proven) - which can result in
errors when a `PointeeSized` supertrait/bound/predicate is added to some
items. Rather than `PointeeSized` being a bound on everything, it can
be the absence of a bound on everything, as `?Sized` was.
2025-06-16 23:04:33 +00:00
..
src hir_analysis: add {Meta,Pointee}Sized bounds 2025-06-16 23:04:33 +00:00
Cargo.toml Revert "Use workspace lints for crates in compiler/ #138084" 2025-03-10 18:12:47 +08:00
messages.ftl AsyncDrop implementation using shim codegen of async_drop_in_place::{closure}, scoped async drop added. 2025-04-28 16:23:13 +07:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

For more information about how rustc works, see the rustc dev guide.