]> git.proxmox.com Git - rustc.git/blame - src/test/auxiliary/go_trait.rs
Imported Upstream version 1.9.0+dfsg1
[rustc.git] / src / test / auxiliary / go_trait.rs
CommitLineData
1a4d82fc
JJ
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
54a0048b
SL
11#![feature(specialization)]
12
1a4d82fc
JJ
13// Common code used for tests that model the Fn/FnMut/FnOnce hierarchy.
14
15pub trait Go {
c34b1796 16 fn go(&self, arg: isize);
1a4d82fc
JJ
17}
18
c34b1796 19pub fn go<G:Go>(this: &G, arg: isize) {
1a4d82fc
JJ
20 this.go(arg)
21}
22
23pub trait GoMut {
c34b1796 24 fn go_mut(&mut self, arg: isize);
1a4d82fc
JJ
25}
26
c34b1796 27pub fn go_mut<G:GoMut>(this: &mut G, arg: isize) {
1a4d82fc
JJ
28 this.go_mut(arg)
29}
30
31pub trait GoOnce {
c34b1796 32 fn go_once(self, arg: isize);
1a4d82fc
JJ
33}
34
c34b1796 35pub fn go_once<G:GoOnce>(this: G, arg: isize) {
1a4d82fc
JJ
36 this.go_once(arg)
37}
38
39impl<G> GoMut for G
40 where G : Go
41{
54a0048b 42 default fn go_mut(&mut self, arg: isize) {
1a4d82fc
JJ
43 go(&*self, arg)
44 }
45}
46
47impl<G> GoOnce for G
48 where G : GoMut
49{
54a0048b 50 default fn go_once(mut self, arg: isize) {
1a4d82fc
JJ
51 go_mut(&mut self, arg)
52 }
53}