diff options
| -rw-r--r-- | tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.rs | 16 | ||||
| -rw-r--r-- | tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr | 19 |
2 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.rs b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.rs new file mode 100644 index 00000000000..bb10701cf6f --- /dev/null +++ b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.rs @@ -0,0 +1,16 @@ +// ICE expected ReFree to map to ReEarlyBound +// issue: rust-lang/rust#108580 +//@ check-pass + +trait Foo { + fn bar(&self) -> impl Iterator<Item = impl Sized> + '_; +} + +impl Foo for () { + fn bar(&self) -> impl Iterator + '_ { + //~^ WARN impl trait in impl method signature does not match trait method signature + vec![()].into_iter() + } +} + +pub fn main() {} diff --git a/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr new file mode 100644 index 00000000000..94f068cabaa --- /dev/null +++ b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr @@ -0,0 +1,19 @@ +warning: impl trait in impl method signature does not match trait method signature + --> $DIR/expeced-refree-to-map-to-reearlybound-ice-108580.rs:10:22 + | +LL | fn bar(&self) -> impl Iterator<Item = impl Sized> + '_; + | ------------------------------------- return type from trait method defined here +... +LL | fn bar(&self) -> impl Iterator + '_ { + | ^^^^^^^^^^^^^^^^^^ + | + = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate + = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information + = note: `#[warn(refining_impl_trait_internal)]` on by default +help: replace the return type so that it matches the trait + | +LL | fn bar(&self) -> impl Iterator<Item = impl Sized> + '_ { + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +warning: 1 warning emitted + |