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Add some tests

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This commit is contained in:
Michael Goulet
2024-01-25 17:43:35 +00:00
parent 881b6b5149
commit 37184e86ea
24 changed files with 402 additions and 9 deletions
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16
compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
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@@ -371,9 +371,19 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
obligation: &PolyTraitObligation<'tcx>,
candidates: &mut SelectionCandidateSet<'tcx>,
) {
if let Some(closure_kind) = obligation.self_ty().skip_binder().to_opt_closure_kind()
&& let Some(goal_kind) =
obligation.predicate.skip_binder().trait_ref.args.type_at(1).to_opt_closure_kind()
let self_ty = obligation.self_ty().skip_binder();
let target_kind_ty = obligation.predicate.skip_binder().trait_ref.args.type_at(1);
// `to_opt_closure_kind` is kind of ICEy when it sees non-int types.
if !(self_ty.is_integral() || self_ty.is_ty_var()) {
return;
}
if !(target_kind_ty.is_integral() || self_ty.is_ty_var()) {
return;
}
if let Some(closure_kind) = self_ty.to_opt_closure_kind()
&& let Some(goal_kind) = target_kind_ty.to_opt_closure_kind()
{
if closure_kind.extends(goal_kind) {
candidates.vec.push(AsyncFnKindHelperCandidate);