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auto merge of #4245 : Ms2ger/servo/lazy-getters, r=Manishearth

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bors-servo 2014-12-05 03:46:07 -07:00
commit 66d4acef8d
3 changed files with 40 additions and 64 deletions
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11
components/script/dom/bindings/js.rs
View file

@ -248,6 +248,17 @@ impl<T: Reflectable> MutNullableJS<T> {
pub unsafe fn get_inner(&self) -> Option<JS<T>> {
self.ptr.get()
}
pub fn or_init(&self, cb: || -> Temporary<T>) -> Temporary<T> {
match self.get() {
Some(inner) => inner,
None => {
let inner = cb();
self.assign(Some(inner));
inner
},
}
}
}
impl<T: Reflectable> JS<T> {

54
components/script/dom/document.rs
View file

@ -483,10 +483,7 @@ impl<'a> PrivateDocumentHelpers for JSRef<'a, Document> {
impl<'a> DocumentMethods for JSRef<'a, Document> {
// http://dom.spec.whatwg.org/#dom-document-implementation
fn Implementation(self) -> Temporary<DOMImplementation> {
if self.implementation.get().is_none() {
self.implementation.assign(Some(DOMImplementation::new(self)));
}
self.implementation.get().unwrap()
self.implementation.or_init(|| DOMImplementation::new(self))
}
// http://dom.spec.whatwg.org/#dom-document-url
@ -874,23 +871,21 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
}
fn Images(self) -> Temporary<HTMLCollection> {
if self.images.get().is_none() {
self.images.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box ImagesFilter;
self.images.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.images.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Embeds(self) -> Temporary<HTMLCollection> {
if self.embeds.get().is_none() {
self.embeds.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box EmbedsFilter;
self.embeds.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.embeds.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Plugins(self) -> Temporary<HTMLCollection> {
@ -898,54 +893,49 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
}
fn Links(self) -> Temporary<HTMLCollection> {
if self.links.get().is_none() {
self.links.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box LinksFilter;
self.links.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.links.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Forms(self) -> Temporary<HTMLCollection> {
if self.forms.get().is_none() {
self.forms.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box FormsFilter;
self.forms.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.forms.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Scripts(self) -> Temporary<HTMLCollection> {
if self.scripts.get().is_none() {
self.scripts.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box ScriptsFilter;
self.scripts.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.scripts.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Anchors(self) -> Temporary<HTMLCollection> {
if self.anchors.get().is_none() {
self.anchors.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box AnchorsFilter;
self.anchors.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.anchors.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Applets(self) -> Temporary<HTMLCollection> {
// FIXME: This should be return OBJECT elements containing applets.
if self.applets.get().is_none() {
self.applets.or_init(|| {
let window = self.window.root();
let root = NodeCast::from_ref(self);
let filter = box AppletsFilter;
self.applets.assign(Some(HTMLCollection::create(*window, root, filter)));
}
self.applets.get().unwrap()
HTMLCollection::create(*window, root, filter)
})
}
fn Location(self) -> Temporary<Location> {

39
components/script/dom/window.rs
View file

@ -10,7 +10,7 @@ use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
use dom::bindings::codegen::InheritTypes::EventTargetCast;
use dom::bindings::error::{Fallible, InvalidCharacter};
use dom::bindings::global;
use dom::bindings::js::{MutNullableJS, JSRef, Temporary, OptionalSettable};
use dom::bindings::js::{MutNullableJS, JSRef, Temporary};
use dom::bindings::utils::{Reflectable, Reflector};
use dom::browsercontext::BrowserContext;
use dom::console::Console;
@ -207,36 +207,19 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
}
fn Location(self) -> Temporary<Location> {
if self.location.get().is_none() {
let page = self.page.clone();
let location = Location::new(self, page);
self.location.assign(Some(location));
}
self.location.get().unwrap()
self.location.or_init(|| Location::new(self, self.page.clone()))
}
fn SessionStorage(self) -> Temporary<Storage> {
if self.session_storage.get().is_none() {
let session_storage = Storage::new(&global::Window(self));
self.session_storage.assign(Some(session_storage));
}
self.session_storage.get().unwrap()
self.session_storage.or_init(|| Storage::new(&global::Window(self)))
}
fn Console(self) -> Temporary<Console> {
if self.console.get().is_none() {
let console = Console::new(global::Window(self));
self.console.assign(Some(console));
}
self.console.get().unwrap()
self.console.or_init(|| Console::new(global::Window(self)))
}
fn Navigator(self) -> Temporary<Navigator> {
if self.navigator.get().is_none() {
let navigator = Navigator::new(self);
self.navigator.assign(Some(navigator));
}
self.navigator.get().unwrap()
self.navigator.or_init(|| Navigator::new(self))
}
fn SetTimeout(self, _cx: *mut JSContext, callback: Function, timeout: i32, args: Vec<JSVal>) -> i32 {
@ -284,11 +267,7 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
}
fn Performance(self) -> Temporary<Performance> {
if self.performance.get().is_none() {
let performance = Performance::new(self);
self.performance.assign(Some(performance));
}
self.performance.get().unwrap()
self.performance.or_init(|| Performance::new(self))
}
event_handler!(click, GetOnclick, SetOnclick)
@ -297,11 +276,7 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
error_event_handler!(error, GetOnerror, SetOnerror)
fn Screen(self) -> Temporary<Screen> {
if self.screen.get().is_none() {
let screen = Screen::new(self);
self.screen.assign(Some(screen));
}
self.screen.get().unwrap()
self.screen.or_init(|| Screen::new(self))
}
fn Debug(self, message: DOMString) {