зеркало из https://github.com/mozilla/gecko-dev.git
52 строки
2.1 KiB
Rust
52 строки
2.1 KiB
Rust
// Copyright (c) 2018 Nuxi (https://nuxi.nl/) and contributors.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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// SUCH DAMAGE.
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// Appease Rust's tidy.
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// ignore-license
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#[cfg(feature = "bitflags")]
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#[macro_use]
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extern crate bitflags;
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// Minimal implementation of bitflags! in case we can't depend on the bitflags
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// crate. Only implements `bits()` and a `from_bits_truncate()` that doesn't
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// actually truncate.
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#[cfg(not(feature = "bitflags"))]
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macro_rules! bitflags {
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(
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$(#[$attr:meta])*
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pub struct $name:ident: $type:ty {
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$($(#[$const_attr:meta])* const $const:ident = $val:expr;)*
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}
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) => {
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$(#[$attr])*
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#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
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pub struct $name { bits: $type }
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impl $name {
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$($(#[$const_attr])* pub const $const: $name = $name{ bits: $val };)*
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pub fn bits(&self) -> $type { self.bits }
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pub fn from_bits_truncate(bits: $type) -> Self { $name{ bits } }
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}
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}
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}
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