diff options
Diffstat (limited to 'src/test/ui/impl-trait/recursive-type-alias-impl-trait-declaration-too-subtle.rs')
-rw-r--r-- | src/test/ui/impl-trait/recursive-type-alias-impl-trait-declaration-too-subtle.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/recursive-type-alias-impl-trait-declaration-too-subtle.rs b/src/test/ui/impl-trait/recursive-type-alias-impl-trait-declaration-too-subtle.rs new file mode 100644 index 000000000..df7966f00 --- /dev/null +++ b/src/test/ui/impl-trait/recursive-type-alias-impl-trait-declaration-too-subtle.rs @@ -0,0 +1,28 @@ +#![feature(type_alias_impl_trait)] + +mod a { + type Foo = impl PartialEq<(Foo, i32)>; + + struct Bar; + + impl PartialEq<(Bar, i32)> for Bar { + fn eq(&self, _other: &(Foo, i32)) -> bool { + true + } + } +} + +mod b { + type Foo = impl PartialEq<(Foo, i32)>; + + struct Bar; + + impl PartialEq<(Foo, i32)> for Bar { + //~^ ERROR cannot implement trait on type alias impl trait + fn eq(&self, _other: &(Bar, i32)) -> bool { + true + } + } +} + +fn main() {} |