// Copyright 2015 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.

// Test that the lifetime of the enclosing `&` is used for the object
// lifetime bound.

// pretty-expanded FIXME #23616

#![allow(dead_code)]

use std::fmt::Display;

trait Test {
    fn foo(&self) { }
}

struct Ref<'a,T:'a+?Sized> {
    r: &'a T
}

struct Ref2<'a,'b,T:'a+'b+?Sized> {
    a: &'a T,
    b: &'b T
}

struct SomeStruct<'a> {
    t: Ref<'a,Test>,
    u: Ref<'a,Test+'a>,
}

fn a<'a>(t: Ref<'a,Test>, mut ss: SomeStruct<'a>) {
    ss.t = t;
}

fn b<'a>(t: Ref<'a,Test>, mut ss: SomeStruct<'a>) {
    ss.u = t;
}

fn c<'a>(t: Ref<'a,Test+'a>, mut ss: SomeStruct<'a>) {
    ss.t = t;
}

fn d<'a>(t: Ref<'a,Test+'a>, mut ss: SomeStruct<'a>) {
    ss.u = t;
}

fn e<'a>(_: Ref<'a, Display+'static>) {}
fn g<'a, 'b>(_: Ref2<'a, 'b, Display+'static>) {}


fn main() {
    // Inside a function body, we can just infer all
    // lifetimes, to allow Ref<'tmp, Display+'static>
    // and Ref2<'tmp, 'tmp, Display+'static>.
    let x = &0 as &(Display+'static);
    let r: Ref<Display> = Ref { r: x };
    let r2: Ref2<Display> = Ref2 { a: x, b: x };
    e(r);
    g(r2);
}