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src/test/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs
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#![feature(nll)] | ||
// compile-pass | ||
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// rust-lang/rust#32382: Borrow checker used to complain about | ||
// `foobar_3` in the `impl` below, presumably due to some interaction | ||
// between the use of a lifetime in the associated type and the use of | ||
// the overloaded operator[]. This regression test ensures that we do | ||
// not resume complaining about it in the future. | ||
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use std::marker::PhantomData; | ||
use std::ops::Index; | ||
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pub trait Context: Clone { | ||
type Container: ?Sized; | ||
fn foobar_1( container: &Self::Container ) -> &str; | ||
fn foobar_2( container: &Self::Container ) -> &str; | ||
fn foobar_3( container: &Self::Container ) -> &str; | ||
} | ||
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#[derive(Clone)] | ||
struct Foobar<'a> { | ||
phantom: PhantomData<&'a ()> | ||
} | ||
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impl<'a> Context for Foobar<'a> { | ||
type Container = [&'a str]; | ||
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fn foobar_1<'r>( container: &'r [&'a str] ) -> &'r str { | ||
container[0] | ||
} | ||
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fn foobar_2<'r>( container: &'r Self::Container ) -> &'r str { | ||
container.index( 0 ) | ||
} | ||
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fn foobar_3<'r>( container: &'r Self::Container ) -> &'r str { | ||
container[0] | ||
} | ||
} | ||
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fn main() { } |