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1 | // Copyright 2014 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 prevent users from making trait objects | |
c34b1796 AL |
12 | // from traits with generic methods, unless `where Self : Sized` is |
13 | // present. | |
1a4d82fc JJ |
14 | |
15 | trait Bar { | |
16 | fn bar<T>(&self, t: T); | |
17 | } | |
18 | ||
c34b1796 AL |
19 | trait Quux { |
20 | fn bar<T>(&self, t: T) | |
21 | where Self : Sized; | |
22 | } | |
23 | ||
1a4d82fc | 24 | fn make_bar<T:Bar>(t: &T) -> &Bar { |
e9174d1e | 25 | //~^ ERROR E0038 |
1a4d82fc | 26 | //~| NOTE method `bar` has generic type parameters |
9cc50fc6 | 27 | t |
1a4d82fc JJ |
28 | } |
29 | ||
30 | fn make_bar_explicit<T:Bar>(t: &T) -> &Bar { | |
7453a54e | 31 | //~^ ERROR E0038 |
54a0048b | 32 | //~^^ NOTE method `bar` has generic type parameters |
1a4d82fc | 33 | t as &Bar |
1a4d82fc JJ |
34 | } |
35 | ||
c34b1796 AL |
36 | fn make_quux<T:Quux>(t: &T) -> &Quux { |
37 | t | |
38 | } | |
39 | ||
40 | fn make_quux_explicit<T:Quux>(t: &T) -> &Quux { | |
41 | t as &Quux | |
42 | } | |
43 | ||
1a4d82fc JJ |
44 | fn main() { |
45 | } |