rust/src/test/compile-fail/regions-early-bound-error.rs

// 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, isize>>(g1: G, b: &'b isize) -> &'b isize {
    g1.get()
    //~^ ERROR cannot infer an appropriate lifetime for automatic coercion due to
    //~| ERROR mismatched types
    //~| expected `&'b isize`
    //~| found `&'a isize`
    //~| lifetime mismatch
}

fn main() {
}