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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`.
105 lines
3.2 KiB
Rust
105 lines
3.2 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 http://mozilla.org/MPL/2.0/. */
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//! Generic types for CSS values related to effects.
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use std::fmt;
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use style_traits::values::{SequenceWriter, ToCss};
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#[cfg(feature = "gecko")]
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use values::specified::url::SpecifiedUrl;
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/// A generic value for a single `box-shadow`.
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#[derive(Animate, Clone, Debug, MallocSizeOf, PartialEq)]
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#[derive(ToAnimatedValue, ToAnimatedZero)]
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pub struct BoxShadow<Color, SizeLength, BlurShapeLength, ShapeLength> {
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/// The base shadow.
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pub base: SimpleShadow<Color, SizeLength, BlurShapeLength>,
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/// The spread radius.
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pub spread: ShapeLength,
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/// Whether this is an inset box shadow.
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#[animation(constant)]
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pub inset: bool,
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}
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/// A generic value for a single `filter`.
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#[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
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#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToAnimatedValue, ToComputedValue, ToCss)]
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pub enum Filter<Angle, Factor, Length, DropShadow> {
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/// `blur(<length>)`
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#[css(function)]
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Blur(Length),
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/// `brightness(<factor>)`
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#[css(function)]
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Brightness(Factor),
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/// `contrast(<factor>)`
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#[css(function)]
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Contrast(Factor),
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/// `grayscale(<factor>)`
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#[css(function)]
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Grayscale(Factor),
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/// `hue-rotate(<angle>)`
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#[css(function)]
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HueRotate(Angle),
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/// `invert(<factor>)`
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#[css(function)]
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Invert(Factor),
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/// `opacity(<factor>)`
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#[css(function)]
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Opacity(Factor),
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/// `saturate(<factor>)`
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#[css(function)]
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Saturate(Factor),
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/// `sepia(<factor>)`
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#[css(function)]
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Sepia(Factor),
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/// `drop-shadow(...)`
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#[css(function)]
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DropShadow(DropShadow),
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/// `<url>`
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#[cfg(feature = "gecko")]
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Url(SpecifiedUrl),
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}
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/// A generic value for the `drop-shadow()` filter and the `text-shadow` property.
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///
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/// Contrary to the canonical order from the spec, the color is serialised
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/// first, like in Gecko and Webkit.
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#[derive(Animate, Clone, ComputeSquaredDistance, Debug)]
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#[derive(MallocSizeOf, PartialEq, ToAnimatedValue, ToAnimatedZero, ToCss)]
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pub struct SimpleShadow<Color, SizeLength, ShapeLength> {
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/// Color.
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pub color: Color,
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/// Horizontal radius.
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pub horizontal: SizeLength,
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/// Vertical radius.
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pub vertical: SizeLength,
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/// Blur radius.
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pub blur: ShapeLength,
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}
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impl<Color, SizeLength, BlurShapeLength, ShapeLength> ToCss for BoxShadow<Color,
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SizeLength,
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BlurShapeLength,
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ShapeLength>
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where
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Color: ToCss,
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SizeLength: ToCss,
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BlurShapeLength: ToCss,
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ShapeLength: ToCss,
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{
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fn to_css<W>(&self, dest: &mut W) -> fmt::Result
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where
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W: fmt::Write,
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{
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{
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let mut writer = SequenceWriter::new(&mut *dest, " ");
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writer.item(&self.base)?;
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writer.item(&self.spread)?;
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}
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if self.inset {
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dest.write_str(" inset")?;
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}
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Ok(())
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}
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}
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