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1 | // Copyright 2012 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. | |
4 | // | |
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. | |
10 | ||
11 | // Check that we correctly infer that b and c must be region | |
12 | // parameterized because they reference a which requires a region. | |
13 | ||
14 | type a<'self> = &'self int; | |
15 | type b<'self> = @a<'self>; | |
16 | ||
17 | struct c<'self> { | |
18 | f: @b<'self> | |
19 | } | |
20 | ||
970d7e83 | 21 | trait set_f<'self> { |
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22 | fn set_f_ok(&self, b: @b<'self>); |
23 | fn set_f_bad(&self, b: @b); | |
24 | } | |
25 | ||
970d7e83 | 26 | impl<'self> set_f<'self> for c<'self> { |
223e47cc LB |
27 | fn set_f_ok(&self, b: @b<'self>) { |
28 | self.f = b; | |
29 | } | |
30 | ||
31 | fn set_f_bad(&self, b: @b) { | |
32 | self.f = b; //~ ERROR mismatched types: expected `@@&'self int` but found `@@&int` | |
33 | } | |
34 | } | |
35 | ||
36 | fn main() {} |