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Pass around event types as Atoms instead of Strings

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`Event` internally stores the `type` as an `Atom`, and we're `String`s
everywhere, which can cause unnecessary allocations to occur since
they'll end up as `Atom`s anyways.
This commit is contained in:
Corey Farwell 2015-12-10 22:06:05 -05:00
parent 996c0a60b8
commit 4accaf50b2
25 changed files with 156 additions and 135 deletions
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36
components/script/dom/event.rs
View file

@ -83,11 +83,11 @@ impl Event {
}
pub fn new(global: GlobalRef,
type_: DOMString,
type_: Atom,
bubbles: EventBubbles,
cancelable: EventCancelable) -> Root<Event> {
let event = Event::new_uninitialized(global);
event.InitEvent(type_, bubbles == EventBubbles::Bubbles, cancelable == EventCancelable::Cancelable);
event.init_event(type_, bubbles == EventBubbles::Bubbles, cancelable == EventCancelable::Cancelable);
event
}
@ -96,7 +96,23 @@ impl Event {
init: &EventBinding::EventInit) -> Fallible<Root<Event>> {
let bubbles = if init.bubbles { EventBubbles::Bubbles } else { EventBubbles::DoesNotBubble };
let cancelable = if init.cancelable { EventCancelable::Cancelable } else { EventCancelable::NotCancelable };
Ok(Event::new(global, type_, bubbles, cancelable))
Ok(Event::new(global, Atom::from(&*type_), bubbles, cancelable))
}
pub fn init_event(&self, type_: Atom, bubbles: bool, cancelable: bool) {
if self.dispatching.get() {
return;
}
self.initialized.set(true);
self.stop_propagation.set(false);
self.stop_immediate.set(false);
self.canceled.set(false);
self.trusted.set(false);
self.target.set(None);
*self.type_.borrow_mut() = type_;
self.bubbles.set(bubbles);
self.cancelable.set(cancelable);
}
#[inline]
@ -224,19 +240,7 @@ impl EventMethods for Event {
type_: DOMString,
bubbles: bool,
cancelable: bool) {
if self.dispatching.get() {
return;
}
self.initialized.set(true);
self.stop_propagation.set(false);
self.stop_immediate.set(false);
self.canceled.set(false);
self.trusted.set(false);
self.target.set(None);
*self.type_.borrow_mut() = Atom::from(&*type_);
self.bubbles.set(bubbles);
self.cancelable.set(cancelable);
self.init_event(Atom::from(&*type_), bubbles, cancelable)
}
// https://dom.spec.whatwg.org/#dom-event-istrusted