62 lines
1.2 KiB
Rust
62 lines
1.2 KiB
Rust
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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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trait Base: Base2 + Base3{
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fn foo(&self) -> ~str;
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}
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trait Base2: Base3{
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fn baz(&self) -> ~str;
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}
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trait Base3{
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fn root(&self) -> ~str;
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}
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trait Super: Base{
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fn bar(&self) -> ~str;
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}
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struct X;
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impl Base for X {
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fn foo(&self) -> ~str{
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~"base foo"
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}
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}
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impl Base2 for X {
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fn baz(&self) -> ~str{
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~"base2 baz"
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}
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}
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impl Base3 for X {
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fn root(&self) -> ~str{
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~"base3 root"
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}
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}
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impl Super for X {
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fn bar(&self) -> ~str{
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~"super bar"
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}
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}
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pub fn main() {
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let n = X;
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let s = &n as &Super;
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assert_eq!(s.bar(),~"super bar");
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assert_eq!(s.foo(),~"base foo");
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assert_eq!(s.baz(),~"base2 baz");
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assert_eq!(s.root(),~"base3 root");
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}
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