32 lines
1.1 KiB
Rust
32 lines
1.1 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test that `<F as Foo<'a>>::Type: 'b`, where `trait Foo<'a> { Type:
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// 'a; }`, does not require that `F: 'b`.
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#![feature(rustc_attrs)]
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#![allow(dead_code)]
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trait SomeTrait<'a> {
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type Type: 'a;
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}
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impl<'a: 'c, 'c, T> SomeTrait<'a> for &'c T where T: SomeTrait<'a> {
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type Type = <T as SomeTrait<'a>>::Type;
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~
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// |
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// Note that this type must outlive 'a, due to the trait
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// definition. If we fall back to OutlivesProjectionComponents
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// here, then we would require that `T:'a`, which is too strong.
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}
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#[rustc_error]
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fn main() { } //~ ERROR compilation successful
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