1 // Copyright 2013 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.
11 // Test that free regions ordering only goes one way. That is,
12 // we have `&'a Node<'b, T>`, which implies that `'a <= 'b`,
13 // but not `'b <= 'a`. Hence returning `&self.val` (which has lifetime
14 // `'a`) where `'b` is expected yields an error.
16 // This test began its life as a test for issue #4325.
18 struct Node<'b, T:'b> {
20 next: Option<&'b Node<'b, T>>
23 impl<'b, T> Node<'b, T> {
24 fn get<'a>(&'a self) -> &'b T {
26 Some(ref next) => next.get(),
27 None => &self.val //~ ERROR cannot infer