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avoid more ty::Binder:dummy

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This commit is contained in:
lcnr
2023-08-03 14:16:26 +02:00
parent c115ec11d2
commit a090b4548d
8 changed files with 29 additions and 36 deletions
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18
compiler/rustc_trait_selection/src/solve/project_goals.rs
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@@ -393,10 +393,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
None => tcx.types.unit,
Some(field_def) => {
let self_ty = field_def.ty(tcx, args);
ecx.add_goal(goal.with(
tcx,
ty::Binder::dummy(goal.predicate.with_self_ty(tcx, self_ty)),
));
ecx.add_goal(goal.with(tcx, goal.predicate.with_self_ty(tcx, self_ty)));
return ecx
.evaluate_added_goals_and_make_canonical_response(Certainty::Yes);
}
@@ -406,10 +403,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
ty::Tuple(elements) => match elements.last() {
None => tcx.types.unit,
Some(&self_ty) => {
ecx.add_goal(goal.with(
tcx,
ty::Binder::dummy(goal.predicate.with_self_ty(tcx, self_ty)),
));
ecx.add_goal(goal.with(tcx, goal.predicate.with_self_ty(tcx, self_ty)));
return ecx
.evaluate_added_goals_and_make_canonical_response(Certainty::Yes);
}
@@ -450,10 +444,10 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
Self::consider_implied_clause(
ecx,
goal,
ty::Binder::dummy(ty::ProjectionPredicate {
ty::ProjectionPredicate {
projection_ty: ecx.tcx().mk_alias_ty(goal.predicate.def_id(), [self_ty]),
term,
})
}
.to_predicate(tcx),
// Technically, we need to check that the future type is Sized,
// but that's already proven by the generator being WF.
@@ -490,12 +484,12 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
Self::consider_implied_clause(
ecx,
goal,
ty::Binder::dummy(ty::ProjectionPredicate {
ty::ProjectionPredicate {
projection_ty: ecx
.tcx()
.mk_alias_ty(goal.predicate.def_id(), [self_ty, generator.resume_ty()]),
term,
})
}
.to_predicate(tcx),
// Technically, we need to check that the future type is Sized,
// but that's already proven by the generator being WF.