bjoernager/rust
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simplify and future-proof needs_normalization

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This commit is contained in:
lcnr 2024-07-10 14:45:07 +02:00
parent 0fdfb61795
commit e00fd781c9
3 changed files with 10 additions and 13 deletions
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13
compiler/rustc_trait_selection/src/traits/normalize.rs
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@ -109,16 +109,13 @@ pub(super) fn needs_normalization<'tcx, T: TypeVisitable<TyCtxt<'tcx>>>(
value: &T,
reveal: Reveal,
) -> bool {
// This mirrors `ty::TypeFlags::HAS_ALIASES` except that we take `Reveal` into account.
let mut flags = ty::TypeFlags::HAS_TY_PROJECTION
| ty::TypeFlags::HAS_TY_WEAK
| ty::TypeFlags::HAS_TY_INHERENT
| ty::TypeFlags::HAS_CT_PROJECTION;
let mut flags = ty::TypeFlags::HAS_ALIAS;
// Opaques are treated as rigid with `Reveal::UserFacing`,
// so we can ignore those.
match reveal {
Reveal::UserFacing => {}
Reveal::All => flags |= ty::TypeFlags::HAS_TY_OPAQUE,
Reveal::UserFacing => flags.remove(ty::TypeFlags::HAS_TY_OPAQUE),
Reveal::All => {}
}
value.has_type_flags(flags)