mirror of
https://github.com/servo/servo.git
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b1031d68c7
* Move webgl_channel into a shared crate * Add license header * Rename channle types and simplify module * Move module to base
46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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#![deny(unsafe_code)]
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//! A crate to hold very common types in Servo.
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//!
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//! You should almost never need to add a data type to this crate. Instead look for
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//! a more shared crate that has fewer dependents.
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use serde::{Deserialize, Serialize};
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pub mod generic_channel;
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pub mod id;
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pub mod print_tree;
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use webrender_api::Epoch as WebRenderEpoch;
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/// A struct for denoting the age of messages; prevents race conditions.
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#[derive(Clone, Copy, Debug, Deserialize, Eq, Hash, Ord, PartialEq, PartialOrd, Serialize)]
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pub struct Epoch(pub u32);
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impl Epoch {
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pub fn next(&mut self) {
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self.0 += 1;
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}
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}
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impl From<Epoch> for WebRenderEpoch {
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fn from(val: Epoch) -> Self {
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WebRenderEpoch(val.0)
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}
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}
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pub trait WebRenderEpochToU16 {
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fn as_u16(&self) -> u16;
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}
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impl WebRenderEpochToU16 for WebRenderEpoch {
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/// The value of this [`Epoch`] as a u16 value. Note that if this Epoch's
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/// value is more than u16::MAX, then the return value will be modulo
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/// u16::MAX.
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fn as_u16(&self) -> u16 {
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(self.0 % u16::MAX as u32) as u16
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}
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}
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