Rollup merge of #113164 - JohnTitor:issue-109054, r=compiler-errors
Add a regression test for #109054 Closes #109054 r? ``@compiler-errors``
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tests/ui/type-alias-impl-trait/issue-109054.rs
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tests/ui/type-alias-impl-trait/issue-109054.rs
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// edition:2021
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#![feature(type_alias_impl_trait)]
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struct CallMe;
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type ReturnType<'a> = impl std::future::Future<Output = u32> + 'a;
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type FnType = impl Fn(&u32) -> ReturnType;
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impl std::ops::Deref for CallMe {
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type Target = FnType;
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fn deref(&self) -> &Self::Target {
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fn inner(val: &u32) -> ReturnType {
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async move { *val * 2 }
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}
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&inner //~ ERROR: expected generic lifetime parameter, found `'_`
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}
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}
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fn main() {}
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tests/ui/type-alias-impl-trait/issue-109054.stderr
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tests/ui/type-alias-impl-trait/issue-109054.stderr
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error[E0792]: expected generic lifetime parameter, found `'_`
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--> $DIR/issue-109054.rs:18:9
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LL | type ReturnType<'a> = impl std::future::Future<Output = u32> + 'a;
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| -- this generic parameter must be used with a generic lifetime parameter
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...
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LL | &inner
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| ^^^^^^
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0792`.
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