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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`.
46 lines
1.1 KiB
Rust
46 lines
1.1 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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//! Computed time values.
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use std::fmt;
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use style_traits::ToCss;
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use values::CSSFloat;
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/// A computed `<time>` value.
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#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, PartialOrd)]
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#[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
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pub struct Time {
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seconds: CSSFloat,
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}
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impl Time {
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/// Creates a time value from a seconds amount.
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pub fn from_seconds(seconds: CSSFloat) -> Self {
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Time {
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seconds: seconds,
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}
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}
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/// Returns `0s`.
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pub fn zero() -> Self {
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Self::from_seconds(0.0)
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}
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/// Returns the amount of seconds this time represents.
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#[inline]
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pub fn seconds(&self) -> CSSFloat {
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self.seconds
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}
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}
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impl ToCss for Time {
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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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self.seconds().to_css(dest)?;
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dest.write_str("s")
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}
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}
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