mirror of https://github.com/rust-lang/rust
27 lines
561 B
Rust
27 lines
561 B
Rust
// ICE regression relating to unconstrained lifetimes in implied
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// bounds. See #110161.
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//@ compile-flags: --crate-type=lib
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trait LtTrait {
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type Ty;
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}
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// erroneous `Ty` impl
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impl LtTrait for () {
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//~^ ERROR not all trait items implemented, missing: `Ty` [E0046]
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}
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// `'lt` is not constrained by the erroneous `Ty`
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impl<'lt, T> LtTrait for Box<T>
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where
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T: LtTrait<Ty = &'lt ()>,
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{
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type Ty = &'lt ();
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}
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// unconstrained lifetime appears in implied bounds
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fn test(_: <Box<()> as LtTrait>::Ty) {}
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fn test2<'x>(_: &'x <Box<()> as LtTrait>::Ty) {}
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