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1a4d82fc | 1 | // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
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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 | ||
0531ce1d | 11 | // Tests that default impls do not have to supply all items but regular impls do. |
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12 | |
13 | #![feature(specialization)] | |
14 | ||
15 | trait Foo { | |
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16 | fn foo_one(&self) -> &'static str; |
17 | fn foo_two(&self) -> &'static str; | |
b039eaaf | 18 | } |
85aaf69f | 19 | |
0531ce1d | 20 | struct MyStruct; |
b039eaaf | 21 | |
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22 | default impl<T> Foo for T { |
23 | fn foo_one(&self) -> &'static str { | |
24 | "generic" | |
7cac9316 | 25 | } |
b039eaaf | 26 | } |
223e47cc | 27 | |
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28 | impl Foo for MyStruct {} |
29 | //~^ ERROR not all trait items implemented, missing: `foo_two` [E0046] | |
7cac9316 | 30 | |
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31 | fn main() { |
32 | println!("{}", MyStruct.foo_one()); | |
c34b1796 | 33 | } |