mirror of https://github.com/rust-lang/rust
28 lines
625 B
Rust
28 lines
625 B
Rust
// Check projection of an associated type out of a higher-ranked
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// trait-bound in the context of a function body.
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pub trait Foo<T> {
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type A;
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fn get(&self, t: T) -> Self::A;
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}
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fn foo<'a, I : for<'x> Foo<&'x isize>>(
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x: <I as Foo<&'a isize>>::A)
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{
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let y: I::A = x;
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}
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fn bar<'a, 'b, I : for<'x> Foo<&'x isize>>(
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x: <I as Foo<&'a isize>>::A,
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y: <I as Foo<&'b isize>>::A,
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cond: bool)
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{
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// x and y here have two distinct lifetimes:
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let z: I::A = if cond { x } else { y };
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//~^ ERROR lifetime may not live long enough
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//~| ERROR lifetime may not live long enough
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}
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pub fn main() {}
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