bjoernager/rust
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Don't check unnecessarily that impl trait is RPIT

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This commit is contained in:
Michael Goulet 2023-07-31 18:13:48 +00:00
parent b321edd1b2
commit 9295817bad
4 changed files with 53 additions and 31 deletions
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4
compiler/rustc_infer/src/infer/error_reporting/mod.rs
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@ -2567,15 +2567,13 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
None,
);
if let Some(infer::RelateParamBound(_, t, _)) = origin {
let return_impl_trait =
self.tcx.return_type_impl_trait(generic_param_scope).is_some();
let t = self.resolve_vars_if_possible(t);
match t.kind() {
// We've got:
// fn get_later<G, T>(g: G, dest: &mut T) -> impl FnOnce() + '_
// suggest:
// fn get_later<'a, G: 'a, T>(g: G, dest: &mut T) -> impl FnOnce() + '_ + 'a
ty::Closure(..) | ty::Alias(ty::Opaque, ..) if return_impl_trait => {
ty::Closure(..) | ty::Alias(ty::Opaque, ..) => {
new_binding_suggestion(&mut err, type_param_span);
}
_ => {