34 lines
956 B
Rust
34 lines
956 B
Rust
// 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 Foo { fn f(&self) -> int; }
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trait Bar { fn g(&self) -> int; }
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trait Baz { fn h(&self) -> int; }
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trait Quux: Foo + Bar + Baz { }
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struct A { x: int }
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impl Foo for A { fn f(&self) -> int { 10 } }
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impl Bar for A { fn g(&self) -> int { 20 } }
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impl Baz for A { fn h(&self) -> int { 30 } }
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impl Quux for A {}
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fn f<T:Quux + Foo + Bar + Baz>(a: &T) {
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assert_eq!(a.f(), 10);
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assert_eq!(a.g(), 20);
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assert_eq!(a.h(), 30);
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}
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pub fn main() {
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let a = &A { x: 3 };
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f(a);
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}
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