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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`.
50 lines
1.5 KiB
Rust
50 lines
1.5 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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use dom::bindings::codegen::Bindings::HTMLHeadingElementBinding;
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use dom::bindings::root::DomRoot;
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use dom::document::Document;
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use dom::htmlelement::HTMLElement;
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use dom::node::Node;
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use dom_struct::dom_struct;
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use html5ever::{LocalName, Prefix};
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#[derive(JSTraceable, MallocSizeOf)]
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pub enum HeadingLevel {
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Heading1,
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Heading2,
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Heading3,
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Heading4,
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Heading5,
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Heading6,
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}
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#[dom_struct]
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pub struct HTMLHeadingElement {
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htmlelement: HTMLElement,
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level: HeadingLevel,
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}
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impl HTMLHeadingElement {
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fn new_inherited(local_name: LocalName,
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prefix: Option<Prefix>,
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document: &Document,
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level: HeadingLevel) -> HTMLHeadingElement {
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HTMLHeadingElement {
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htmlelement:
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HTMLElement::new_inherited(local_name, prefix, document),
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level: level,
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(local_name: LocalName,
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prefix: Option<Prefix>,
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document: &Document,
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level: HeadingLevel) -> DomRoot<HTMLHeadingElement> {
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Node::reflect_node(Box::new(HTMLHeadingElement::new_inherited(local_name, prefix, document, level)),
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document,
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HTMLHeadingElementBinding::Wrap)
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}
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}
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