38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
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// Copyright 2014 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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#![feature(default_type_params)]
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#[deriving(PartialEq)]
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struct Bar;
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struct Baz;
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struct Foo;
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struct Fu;
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impl PartialEq for Baz { fn eq(&self, _: &Baz) -> bool { true } }
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impl PartialEq<Fu> for Foo { fn eq(&self, _: &Fu) -> bool { true } }
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impl PartialEq<Foo> for Fu { fn eq(&self, _: &Foo) -> bool { true } }
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impl PartialEq<Bar> for Foo { fn eq(&self, _: &Bar) -> bool { false } }
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impl PartialEq<Foo> for Bar { fn eq(&self, _: &Foo) -> bool { false } }
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fn main() {
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assert!(Bar != Foo);
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assert!(Foo != Bar);
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assert!(Bar == Bar);
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assert!(Baz == Baz);
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assert!(Foo == Fu);
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assert!(Fu == Foo);
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}
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