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Auto merge of #110806 - WaffleLapkin:unmkI, r=lcnr

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Replace `tcx.mk_trait_ref` with `TraitRef::new`

First step in implementing https://github.com/rust-lang/compiler-team/issues/616
r? `@lcnr`
This commit is contained in:
bors 2023-05-04 05:54:09 +00:00
commit 6f8c0557e0
49 changed files with 246 additions and 181 deletions
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15
compiler/rustc_trait_selection/src/traits/project.rs
View file

@ -1319,7 +1319,7 @@ fn assemble_candidate_for_impl_trait_in_trait<'cx, 'tcx>(
let trait_substs =
obligation.predicate.substs.truncate_to(tcx, tcx.generics_of(trait_def_id));
// FIXME(named-returns): Binders
let trait_predicate = ty::Binder::dummy(tcx.mk_trait_ref(trait_def_id, trait_substs));
let trait_predicate = ty::TraitRef::new(tcx, trait_def_id, trait_substs);
let _ = selcx.infcx.commit_if_ok(|_| {
match selcx.select(&obligation.with(tcx, trait_predicate)) {
@ -1682,10 +1682,8 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
if selcx.infcx.predicate_must_hold_modulo_regions(
&obligation.with(
selcx.tcx(),
ty::Binder::dummy(
selcx.tcx().at(obligation.cause.span()).mk_trait_ref(LangItem::Sized, [self_ty]),
)
.without_const(),
ty::TraitRef::from_lang_item(selcx.tcx(), LangItem::Sized, obligation.cause.span(),[self_ty])
.without_const(),
),
) =>
{
@ -1948,8 +1946,11 @@ fn confirm_builtin_candidate<'cx, 'tcx>(
)
});
if check_is_sized {
let sized_predicate = ty::Binder::dummy(
tcx.at(obligation.cause.span()).mk_trait_ref(LangItem::Sized, [self_ty]),
let sized_predicate = ty::TraitRef::from_lang_item(
tcx,
LangItem::Sized,
obligation.cause.span(),
[self_ty],
)
.without_const();
obligations.push(obligation.with(tcx, sized_predicate));