bjoernager/rust
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Move trait bound modifiers into hir::PolyTraitRef

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This commit is contained in:
Michael Goulet 2024-10-13 09:16:03 -04:00
parent f6648f252a
commit 7500e09b8b
32 changed files with 102 additions and 100 deletions
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43
compiler/rustc_ast_lowering/src/lib.rs
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@ -1225,7 +1225,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
itctx,
TraitBoundModifiers::NONE,
);
let bound = (bound, hir::TraitBoundModifier::None);
let bounds = this.arena.alloc_from_iter([bound]);
let lifetime_bound = this.elided_dyn_bound(t.span);
(bounds, lifetime_bound)
@ -1328,8 +1327,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
// const trait bounds in trait object types.
GenericBound::Trait(ty, modifiers) => {
let trait_ref = this.lower_poly_trait_ref(ty, itctx, *modifiers);
let polarity = this.lower_trait_bound_modifiers(*modifiers);
Some((trait_ref, polarity))
Some(trait_ref)
}
GenericBound::Outlives(lifetime) => {
if lifetime_bound.is_none() {
@ -1958,21 +1956,15 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
span_ext: DUMMY_SP,
});
hir::GenericBound::Trait(
hir::PolyTraitRef {
bound_generic_params: &[],
trait_ref: hir::TraitRef {
path: self.make_lang_item_path(
trait_lang_item,
opaque_ty_span,
Some(bound_args),
),
hir_ref_id: self.next_id(),
},
span: opaque_ty_span,
hir::GenericBound::Trait(hir::PolyTraitRef {
bound_generic_params: &[],
modifiers: hir::TraitBoundModifier::None,
trait_ref: hir::TraitRef {
path: self.make_lang_item_path(trait_lang_item, opaque_ty_span, Some(bound_args)),
hir_ref_id: self.next_id(),
},
hir::TraitBoundModifier::None,
)
span: opaque_ty_span,
})
}
#[instrument(level = "trace", skip(self))]
@ -1982,10 +1974,9 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
itctx: ImplTraitContext,
) -> hir::GenericBound<'hir> {
match tpb {
GenericBound::Trait(p, modifiers) => hir::GenericBound::Trait(
self.lower_poly_trait_ref(p, itctx, *modifiers),
self.lower_trait_bound_modifiers(*modifiers),
),
GenericBound::Trait(p, modifiers) => {
hir::GenericBound::Trait(self.lower_poly_trait_ref(p, itctx, *modifiers))
}
GenericBound::Outlives(lifetime) => {
hir::GenericBound::Outlives(self.lower_lifetime(lifetime))
}
@ -2194,7 +2185,13 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
let bound_generic_params =
self.lower_lifetime_binder(p.trait_ref.ref_id, &p.bound_generic_params);
let trait_ref = self.lower_trait_ref(modifiers, &p.trait_ref, itctx);
hir::PolyTraitRef { bound_generic_params, trait_ref, span: self.lower_span(p.span) }
let modifiers = self.lower_trait_bound_modifiers(modifiers);
hir::PolyTraitRef {
bound_generic_params,
modifiers,
trait_ref,
span: self.lower_span(p.span),
}
}
fn lower_mt(&mut self, mt: &MutTy, itctx: ImplTraitContext) -> hir::MutTy<'hir> {
@ -2634,10 +2631,10 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
Res::Def(DefKind::Trait | DefKind::TraitAlias, _) => {
let principal = hir::PolyTraitRef {
bound_generic_params: &[],
modifiers: hir::TraitBoundModifier::None,
trait_ref: hir::TraitRef { path, hir_ref_id: hir_id },
span: self.lower_span(span),
};
let principal = (principal, hir::TraitBoundModifier::None);
// The original ID is taken by the `PolyTraitRef`,
// so the `Ty` itself needs a different one.