1 // Copyright 2018 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
14 fn foo(&'a self) -> Self::Bar;
17 impl<'a, 'b, T: 'a> Foo<'a> for &'b T {
19 fn foo(&'a self) -> &'a T {
24 pub fn uncallable<T, F>(x: T, f: F)
25 where T: for<'a> Foo<'a>,
26 F: for<'a> Fn(<T as Foo<'a>>::Bar)
31 pub fn catalyst(x: &i32) {
35 pub fn broken<F: Fn(&i32)>(x: &i32, f: F) {
36 uncallable(x, |y| f(y));