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Fix capturing duplicated lifetimes via parent
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32 changes: 32 additions & 0 deletions
32
tests/ui/impl-trait/precise-capturing/capture-parent-arg.rs
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Original file line number | Diff line number | Diff line change |
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#![feature(precise_capturing)] | ||
//~^ WARN the feature `precise_capturing` is incomplete | ||
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trait Tr { | ||
type Assoc; | ||
} | ||
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struct W<'a>(&'a ()); | ||
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impl Tr for W<'_> { | ||
type Assoc = (); | ||
} | ||
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impl<'a> W<'a> { | ||
fn good1() -> impl use<'a> Into<<W<'a> as Tr>::Assoc> {} | ||
} | ||
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impl<'a> W<'a> { | ||
fn good2() -> impl use<'a> Into<<Self as Tr>::Assoc> {} | ||
} | ||
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impl<'a> W<'a> { | ||
fn bad1() -> impl use<> Into<<W<'a> as Tr>::Assoc> {} | ||
//~^ ERROR `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list | ||
} | ||
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impl<'a> W<'a> { | ||
//~^ ERROR `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list | ||
fn bad2() -> impl use<> Into<<Self as Tr>::Assoc> {} | ||
} | ||
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fn main() {} |
28 changes: 28 additions & 0 deletions
28
tests/ui/impl-trait/precise-capturing/capture-parent-arg.stderr
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warning: the feature `precise_capturing` is incomplete and may not be safe to use and/or cause compiler crashes | ||
--> $DIR/capture-parent-arg.rs:1:12 | ||
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LL | #![feature(precise_capturing)] | ||
| ^^^^^^^^^^^^^^^^^ | ||
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= note: see issue #123432 <https://github.com/rust-lang/rust/issues/123432> for more information | ||
= note: `#[warn(incomplete_features)]` on by default | ||
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error: `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list | ||
--> $DIR/capture-parent-arg.rs:23:37 | ||
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LL | impl<'a> W<'a> { | ||
| -- this lifetime parameter is captured | ||
LL | fn bad1() -> impl use<> Into<<W<'a> as Tr>::Assoc> {} | ||
| -------------------^^---------------- lifetime captured due to being mentioned in the bounds of the `impl Trait` | ||
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error: `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list | ||
--> $DIR/capture-parent-arg.rs:27:6 | ||
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LL | impl<'a> W<'a> { | ||
| ^^ | ||
LL | | ||
LL | fn bad2() -> impl use<> Into<<Self as Tr>::Assoc> {} | ||
| ------------------------------------ lifetime captured due to being mentioned in the bounds of the `impl Trait` | ||
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error: aborting due to 2 previous errors; 1 warning emitted | ||
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