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