604af3f6c0
These `where` clauses are accepted everywhere generics are currently accepted and desugar during type collection to the type parameter bounds we have today. A new keyword, `where`, has been added. Therefore, this is a breaking change. Change uses of `where` to other identifiers. [breaking-change]
31 lines
943 B
Rust
31 lines
943 B
Rust
// 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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pub trait Equal {
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fn equal(&self, other: &Self) -> bool;
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fn equals<T,U>(&self, this: &T, that: &T, x: &U, y: &U) -> bool
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where T: Eq, U: Eq;
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}
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impl<T> Equal for T where T: Eq {
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fn equal(&self, other: &T) -> bool {
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self == other
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}
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fn equals<U,X>(&self, this: &U, other: &U, x: &X, y: &X) -> bool
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where U: Eq, X: Eq {
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this == other && x == y
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}
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}
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pub fn equal<T>(x: &T, y: &T) -> bool where T: Eq {
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x == y
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}
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