diff options
Diffstat (limited to 'tests/ui/issues/issue-91489.rs')
-rw-r--r-- | tests/ui/issues/issue-91489.rs | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-91489.rs b/tests/ui/issues/issue-91489.rs new file mode 100644 index 000000000..f028a4a3c --- /dev/null +++ b/tests/ui/issues/issue-91489.rs @@ -0,0 +1,40 @@ +// check-pass + +// regression test for #91489 + +use std::borrow::Borrow; +use std::borrow::Cow; + +pub struct VariantType {} +pub struct VariantTy {} + +impl Borrow<VariantTy> for VariantType { + fn borrow(&self) -> &VariantTy { + unimplemented!() + } +} + +impl ToOwned for VariantTy { + type Owned = VariantType; + fn to_owned(&self) -> VariantType { + unimplemented!() + } +} + +impl VariantTy { + pub fn as_str(&self) -> () {} +} + +// the presence of this was causing all attempts to call `as_str` on +// `Cow<'_, VariantTy>, including in itself, to not find the method +static _TYP: () = { + let _ = || { + // should be found + Cow::Borrowed(&VariantTy {}).as_str(); + }; +}; + +fn main() { + // should be found + Cow::Borrowed(&VariantTy {}).as_str() +} |