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Diffstat (limited to 'src/test/ui/traits/issue-26339.rs')
-rw-r--r-- | src/test/ui/traits/issue-26339.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/traits/issue-26339.rs b/src/test/ui/traits/issue-26339.rs new file mode 100644 index 000000000..bedd87cc4 --- /dev/null +++ b/src/test/ui/traits/issue-26339.rs @@ -0,0 +1,31 @@ +// run-pass +// Test that the right implementation is called through a trait +// object when supertraits include multiple references to the +// same trait, with different type parameters. + +trait A: PartialEq<Foo> + PartialEq<Bar> { } + +struct Foo; +struct Bar; + +struct Aimpl; + +impl PartialEq<Foo> for Aimpl { + fn eq(&self, _rhs: &Foo) -> bool { + true + } +} + +impl PartialEq<Bar> for Aimpl { + fn eq(&self, _rhs: &Bar) -> bool { + false + } +} + +impl A for Aimpl { } + +fn main() { + let a = &Aimpl as &dyn A; + + assert!(*a == Foo); +} |