rust/tests/ui/issues/issue-91489.rs
2023-01-11 09:32:08 +00:00

41 lines
782 B
Rust

// 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()
}