servo/components/script/dom/htmlmediaelement.rs
Patrick Walton 8c210e1a27 script: Make PartialEq on element type IDs generate a lot less code.
This makes the difference between selector matching scaling on the ARM
Cortex-A9 and not, because the auto-derived `PartialEq` implementation
blows out the 32KB I-cache. With this change, there is a 2x improvement
in selector matching over sequential when using all 8 cores. (More work
needs to be done; this is a start.)
2015-06-12 15:00:02 -07:00

58 lines
1.7 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::js::{JSRef};
use dom::bindings::codegen::InheritTypes::HTMLMediaElementDerived;
use dom::document::Document;
use dom::eventtarget::{EventTarget, EventTargetTypeId};
use dom::element::ElementTypeId;
use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
use dom::node::NodeTypeId;
use util::str::DOMString;
#[dom_struct]
pub struct HTMLMediaElement {
htmlelement: HTMLElement,
}
impl HTMLMediaElementDerived for EventTarget {
fn is_htmlmediaelement(&self) -> bool {
match *self.type_id() {
EventTargetTypeId::Node(
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLMediaElement(_)))) => true,
_ => false
}
}
}
impl HTMLMediaElement {
pub fn new_inherited(type_id: HTMLMediaElementTypeId, tag_name: DOMString,
prefix: Option<DOMString>, document: JSRef<Document>)
-> HTMLMediaElement {
HTMLMediaElement {
htmlelement:
HTMLElement::new_inherited(HTMLElementTypeId::HTMLMediaElement(type_id), tag_name, prefix, document)
}
}
#[inline]
pub fn htmlelement<'a>(&'a self) -> &'a HTMLElement {
&self.htmlelement
}
}
#[derive(Copy, Clone, Debug)]
#[jstraceable]
pub enum HTMLMediaElementTypeId {
HTMLAudioElement = 0,
HTMLVideoElement = 1,
}
impl PartialEq for HTMLMediaElementTypeId {
#[inline]
fn eq(&self, other: &HTMLMediaElementTypeId) -> bool {
(*self as u8) == (*other as u8)
}
}