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| author | Takayuki Maeda <takoyaki0316@gmail.com> | 2022-08-24 14:09:55 +0900 |
|---|---|---|
| committer | Takayuki Maeda <takoyaki0316@gmail.com> | 2022-08-24 14:09:55 +0900 |
| commit | 56f9e29d2a372771251a06189a23442e336567cf (patch) | |
| tree | d41a112446a7d921b87e737505ce6f317c37ca79 | |
| parent | 87991d5f5d72d6baca490141cb890211ba2f3843 (diff) | |
| download | rust-56f9e29d2a372771251a06189a23442e336567cf.tar.gz rust-56f9e29d2a372771251a06189a23442e336567cf.zip | |
add a missing test case for impl generic mismatch
| -rw-r--r-- | src/test/ui/impl-trait/impl-generic-mismatch.rs | 9 | ||||
| -rw-r--r-- | src/test/ui/impl-trait/impl-generic-mismatch.stderr | 18 |
2 files changed, 25 insertions, 2 deletions
diff --git a/src/test/ui/impl-trait/impl-generic-mismatch.rs b/src/test/ui/impl-trait/impl-generic-mismatch.rs index ba678bb032d..fb8bde0d081 100644 --- a/src/test/ui/impl-trait/impl-generic-mismatch.rs +++ b/src/test/ui/impl-trait/impl-generic-mismatch.rs @@ -18,6 +18,15 @@ impl Bar for () { //~^ Error method `bar` has incompatible signature for trait } +trait Baz { + fn baz<U: Debug, T: Debug>(&self, _: &U, _: &T); +} + +impl Baz for () { + fn baz<T: Debug>(&self, _: &impl Debug, _: &T) { } + //~^ Error method `baz` has incompatible signature for trait +} + // With non-local trait (#49841): use std::hash::{Hash, Hasher}; diff --git a/src/test/ui/impl-trait/impl-generic-mismatch.stderr b/src/test/ui/impl-trait/impl-generic-mismatch.stderr index 489afd7615f..542f02d7ec5 100644 --- a/src/test/ui/impl-trait/impl-generic-mismatch.stderr +++ b/src/test/ui/impl-trait/impl-generic-mismatch.stderr @@ -27,8 +27,22 @@ help: try changing the `impl Trait` argument to a generic parameter LL | fn bar<U: Debug>(&self, _: &U) { } | ++++++++++ ~ +error[E0643]: method `baz` has incompatible signature for trait + --> $DIR/impl-generic-mismatch.rs:26:33 + | +LL | fn baz<U: Debug, T: Debug>(&self, _: &U, _: &T); + | - declaration in trait here +... +LL | fn baz<T: Debug>(&self, _: &impl Debug, _: &T) { } + | ^^^^^^^^^^ expected generic parameter, found `impl Trait` + | +help: try changing the `impl Trait` argument to a generic parameter + | +LL | fn baz<U: Debug, T: Debug>(&self, _: &T, _: &T) { } + | ~~~~~~~~~~~~~~~~~~~~ ~ + error[E0643]: method `hash` has incompatible signature for trait - --> $DIR/impl-generic-mismatch.rs:28:33 + --> $DIR/impl-generic-mismatch.rs:37:33 | LL | fn hash(&self, hasher: &mut impl Hasher) {} | ^^^^^^^^^^^ expected generic parameter, found `impl Trait` @@ -38,6 +52,6 @@ LL | fn hash(&self, hasher: &mut impl Hasher) {} LL | fn hash<H: Hasher>(&self, state: &mut H); | - declaration in trait here -error: aborting due to 3 previous errors +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0643`. |