blob: 5da281d93dd556737fe7055a9316c7bbf4946674 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Tests that you can use a fn lifetime parameter as part of
// the value for a type parameter in a bound.
trait GetRef<'a, T> {
fn get(&self) -> &'a T;
}
struct Box<'a, T:'a> {
t: &'a T
}
impl<'a,T:Clone> GetRef<'a,T> for Box<'a,T> {
fn get(&self) -> &'a T {
self.t
}
}
fn get<'a,'b,G:GetRef<'a, int>>(g1: G, b: &'b int) -> &'b int {
g1.get() //~ ERROR cannot infer an appropriate lifetime for automatic coercion due to
}
fn main() {
}
|
