diff options
Diffstat (limited to 'src/test/ui/on-unimplemented/impl-substs.rs')
-rw-r--r-- | src/test/ui/on-unimplemented/impl-substs.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/on-unimplemented/impl-substs.rs b/src/test/ui/on-unimplemented/impl-substs.rs new file mode 100644 index 000000000..fe9c50ec3 --- /dev/null +++ b/src/test/ui/on-unimplemented/impl-substs.rs @@ -0,0 +1,15 @@ +#![feature(rustc_attrs)] + +trait Foo<A> { + fn foo(self); +} + +#[rustc_on_unimplemented = "an impl did not match: {A} {B} {C}"] +impl<A, B, C> Foo<A> for (A, B, C) { + fn foo(self) {} +} + +fn main() { + Foo::<usize>::foo((1i32, 1i32, 1i32)); + //~^ ERROR the trait bound `(i32, i32, i32): Foo<usize>` is not satisfied +} |