51 lines
1.8 KiB
Rust
51 lines
1.8 KiB
Rust
// Copyright 2015 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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// Utility macros for implementing PartialEq on slice-like types
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#![doc(hidden)]
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#[macro_export]
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macro_rules! __impl_slice_eq1 {
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($Lhs: ty, $Rhs: ty) => {
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<'a, 'b, A, B> PartialEq<$Rhs> for $Lhs where A: PartialEq<B> {
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#[inline]
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fn eq(&self, other: &$Rhs) -> bool { &self[..] == &other[..] }
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#[inline]
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fn ne(&self, other: &$Rhs) -> bool { &self[..] != &other[..] }
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}
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}
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}
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#[macro_export]
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macro_rules! __impl_slice_eq2 {
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($Lhs: ty, $Rhs: ty) => {
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__impl_slice_eq2! { $Lhs, $Rhs, Sized }
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};
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($Lhs: ty, $Rhs: ty, $Bound: ident) => {
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<'a, 'b, A: $Bound, B> PartialEq<$Rhs> for $Lhs where A: PartialEq<B> {
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#[inline]
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fn eq(&self, other: &$Rhs) -> bool { &self[..] == &other[..] }
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#[inline]
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fn ne(&self, other: &$Rhs) -> bool { &self[..] != &other[..] }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<'a, 'b, A: $Bound, B> PartialEq<$Lhs> for $Rhs where B: PartialEq<A> {
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#[inline]
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fn eq(&self, other: &$Lhs) -> bool { &self[..] == &other[..] }
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#[inline]
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fn ne(&self, other: &$Lhs) -> bool { &self[..] != &other[..] }
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}
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}
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}
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