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Simplify checking for GeneratorKind::Async

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Adds a helper method around `generator_kind` that makes matching async constructs simpler.
This commit is contained in:
Arpad Borsos 2022-11-26 21:33:12 +01:00
parent 8a09420ac4
commit 2db0dc3297
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GPG key ID: FC7BCA77824B3298
5 changed files with 10 additions and 22 deletions
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7
compiler/rustc_borrowck/src/diagnostics/region_errors.rs
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@ -514,12 +514,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
span: *span,
ty_err: match output_ty.kind() {
ty::Closure(_, _) => FnMutReturnTypeErr::ReturnClosure { span: *span },
ty::Generator(def, ..)
if matches!(
self.infcx.tcx.generator_kind(def),
Some(hir::GeneratorKind::Async(_))
) =>
{
ty::Generator(def, ..) if self.infcx.tcx.generator_is_async(*def) => {
FnMutReturnTypeErr::ReturnAsyncBlock { span: *span }
}
_ => FnMutReturnTypeErr::ReturnRef { span: *span },