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Diffstat (limited to '')
| -rw-r--r-- | tests/ui/impl-trait/in-trait/specialization-broken.stderr | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/in-trait/specialization-broken.stderr b/tests/ui/impl-trait/in-trait/specialization-broken.stderr new file mode 100644 index 000000000..dc621d6b8 --- /dev/null +++ b/tests/ui/impl-trait/in-trait/specialization-broken.stderr @@ -0,0 +1,31 @@ +error[E0053]: method `bar` has an incompatible type for trait + --> $DIR/specialization-broken.rs:16:22 + | +LL | default impl<U> Foo for U + | - this type parameter +... +LL | fn bar(&self) -> U { + | ^ + | | + | expected associated type, found type parameter `U` + | help: change the output type to match the trait: `impl Sized` + | +note: type in trait + --> $DIR/specialization-broken.rs:9:22 + | +LL | fn bar(&self) -> impl Sized; + | ^^^^^^^^^^ + = note: expected signature `fn(&U) -> impl Sized` + found signature `fn(&U) -> U` + +error: method with return-position `impl Trait` in trait cannot be specialized + --> $DIR/specialization-broken.rs:16:5 + | +LL | fn bar(&self) -> U { + | ^^^^^^^^^^^^^^^^^^ + | + = note: specialization behaves in inconsistent and surprising ways with `#![feature(return_position_impl_trait_in_trait)]`, and for now is disallowed + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0053`. |