mirror of
https://github.com/servo/servo.git
synced 2025-06-10 09:33:13 +00:00
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`.
81 lines
2.7 KiB
Rust
81 lines
2.7 KiB
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/. */
|
|
|
|
use dom::bindings::codegen::Bindings::EventBinding::EventMethods;
|
|
use dom::bindings::codegen::Bindings::PopStateEventBinding;
|
|
use dom::bindings::codegen::Bindings::PopStateEventBinding::PopStateEventMethods;
|
|
use dom::bindings::error::Fallible;
|
|
use dom::bindings::inheritance::Castable;
|
|
use dom::bindings::reflector::reflect_dom_object;
|
|
use dom::bindings::root::DomRoot;
|
|
use dom::bindings::str::DOMString;
|
|
use dom::bindings::trace::RootedTraceableBox;
|
|
use dom::event::Event;
|
|
use dom::window::Window;
|
|
use dom_struct::dom_struct;
|
|
use js::jsapi::{Heap, HandleValue, JSContext};
|
|
use js::jsval::JSVal;
|
|
use servo_atoms::Atom;
|
|
|
|
// https://html.spec.whatwg.org/multipage/#the-popstateevent-interface
|
|
#[dom_struct]
|
|
pub struct PopStateEvent {
|
|
event: Event,
|
|
#[ignore_malloc_size_of = "Defined in rust-mozjs"]
|
|
state: Heap<JSVal>,
|
|
}
|
|
|
|
impl PopStateEvent {
|
|
fn new_inherited() -> PopStateEvent {
|
|
PopStateEvent {
|
|
event: Event::new_inherited(),
|
|
state: Heap::default(),
|
|
}
|
|
}
|
|
|
|
pub fn new_uninitialized(window: &Window) -> DomRoot<PopStateEvent> {
|
|
reflect_dom_object(Box::new(PopStateEvent::new_inherited()),
|
|
window,
|
|
PopStateEventBinding::Wrap)
|
|
}
|
|
|
|
pub fn new(window: &Window,
|
|
type_: Atom,
|
|
bubbles: bool,
|
|
cancelable: bool,
|
|
state: HandleValue)
|
|
-> DomRoot<PopStateEvent> {
|
|
let ev = PopStateEvent::new_uninitialized(window);
|
|
ev.state.set(state.get());
|
|
{
|
|
let event = ev.upcast::<Event>();
|
|
event.init_event(type_, bubbles, cancelable);
|
|
}
|
|
ev
|
|
}
|
|
|
|
pub fn Constructor(window: &Window,
|
|
type_: DOMString,
|
|
init: RootedTraceableBox<PopStateEventBinding::PopStateEventInit>)
|
|
-> Fallible<DomRoot<PopStateEvent>> {
|
|
Ok(PopStateEvent::new(window,
|
|
Atom::from(type_),
|
|
init.parent.bubbles,
|
|
init.parent.cancelable,
|
|
init.state.handle()))
|
|
}
|
|
}
|
|
|
|
impl PopStateEventMethods for PopStateEvent {
|
|
#[allow(unsafe_code)]
|
|
// https://html.spec.whatwg.org/multipage/#dom-popstateevent-state
|
|
unsafe fn State(&self, _cx: *mut JSContext) -> JSVal {
|
|
self.state.get()
|
|
}
|
|
|
|
// https://dom.spec.whatwg.org/#dom-event-istrusted
|
|
fn IsTrusted(&self) -> bool {
|
|
self.event.IsTrusted()
|
|
}
|
|
}
|