mirror of
https://github.com/servo/servo.git
synced 2025-06-20 15:18:58 +01:00
4506f0d30c
Servo currently uses `heapsize`, but Stylo/Gecko use `malloc_size_of`. `malloc_size_of` is better -- it handles various cases that `heapsize` does not -- so this patch changes Servo to use `malloc_size_of`. This patch makes the following changes to the `malloc_size_of` crate. - Adds `MallocSizeOf` trait implementations for numerous types, some built-in (e.g. `VecDeque`), some external and Servo-only (e.g. `string_cache`). - Makes `enclosing_size_of_op` optional, because vanilla jemalloc doesn't support that operation. - For `HashSet`/`HashMap`, falls back to a computed estimate when `enclosing_size_of_op` isn't available. - Adds an extern "C" `malloc_size_of` function that does the actual heap measurement; this is based on the same functions from the `heapsize` crate. This patch makes the following changes elsewhere. - Converts all the uses of `heapsize` to instead use `malloc_size_of`. - Disables the "heapsize"/"heap_size" feature for the external crates that provide it. - Removes the `HeapSizeOf` implementation from `hashglobe`. - Adds `ignore` annotations to a few `Rc`/`Arc`, because `malloc_size_of` doesn't derive those types, unlike `heapsize`.
37 lines
927 B
Rust
37 lines
927 B
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
//! Generic types for CSS values related to flexbox.
|
|
|
|
use values::computed::Percentage;
|
|
|
|
/// A generic value for the `flex-basis` property.
|
|
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
|
|
#[derive(Clone, Copy, Debug, PartialEq, ToComputedValue, ToCss)]
|
|
pub enum FlexBasis<LengthOrPercentage> {
|
|
/// `auto`
|
|
Auto,
|
|
/// `content`
|
|
Content,
|
|
/// `<length-percentage>`
|
|
Length(LengthOrPercentage),
|
|
}
|
|
|
|
impl<L> FlexBasis<L> {
|
|
/// Returns `auto`.
|
|
#[inline]
|
|
pub fn auto() -> Self {
|
|
FlexBasis::Auto
|
|
}
|
|
}
|
|
|
|
impl<L> FlexBasis<L>
|
|
where Percentage: Into<L>,
|
|
{
|
|
/// Returns `0%`.
|
|
#[inline]
|
|
pub fn zero_percent() -> Self {
|
|
FlexBasis::Length(Percentage(0.).into())
|
|
}
|
|
}
|