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Use Temporary in ChildElementIterator

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This commit is contained in:
Anthony Ramine 2015-04-06 03:40:57 +02:00
parent bf7c791e3a
commit 11b4ff9e94
2 changed files with 11 additions and 14 deletions
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2
components/script/dom/document.rs
View file

@ -927,7 +927,7 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
// http://dom.spec.whatwg.org/#dom-document-documentelement
fn GetDocumentElement(self) -> Option<Temporary<Element>> {
let node: JSRef<Node> = NodeCast::from_ref(self);
node.child_elements().next().map(Temporary::from_rooted)
node.child_elements().next()
}
// http://dom.spec.whatwg.org/#dom-document-getelementsbytagname

23
components/script/dom/node.rs
View file

@ -413,7 +413,7 @@ pub trait NodeHelpers<'a> {
fn inclusive_ancestors(self) -> AncestorIterator;
fn children(self) -> NodeChildrenIterator;
fn rev_children(self) -> ReverseChildrenIterator;
fn child_elements(self) -> ChildElementIterator<'a>;
fn child_elements(self) -> ChildElementIterator;
fn following_siblings(self) -> NodeChildrenIterator;
fn is_in_doc(self) -> bool;
fn is_inclusive_ancestor_of(self, parent: JSRef<Node>) -> bool;
@ -870,14 +870,9 @@ impl<'a> NodeHelpers<'a> for JSRef<'a, Node> {
}
}
fn child_elements(self) -> ChildElementIterator<'a> {
fn cast<'a>(n: Temporary<Node>) -> Option<JSRef<'a, Element>> {
let n = n.root();
ElementCast::to_ref(n.get_unsound_ref_forever())
}
fn child_elements(self) -> ChildElementIterator {
self.children()
.filter_map(cast as fn(_) -> _)
.filter_map(ElementCast::to_temporary as fn(_) -> _)
.peekable()
}
@ -1114,9 +1109,9 @@ impl RawLayoutNodeHelpers for Node {
// Iteration and traversal
//
pub type ChildElementIterator<'a> =
pub type ChildElementIterator =
Peekable<FilterMap<NodeChildrenIterator,
fn(Temporary<Node>) -> Option<JSRef<'a, Element>>>>;
fn(Temporary<Node>) -> Option<Temporary<Element>>>>;
pub struct NodeChildrenIterator {
current: Option<Temporary<Node>>,
@ -1946,7 +1941,9 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
0 => (),
// Step 6.1.2
1 => {
if self.child_elements().any(|c| NodeCast::from_ref(c) != child) {
if self.child_elements()
.map(|c| c.root())
.any(|c| NodeCast::from_ref(c.r()) != child) {
return Err(HierarchyRequest);
}
if child.following_siblings()
@ -1962,8 +1959,8 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
// Step 6.2
NodeTypeId::Element(..) => {
if self.child_elements()
.any(|c| NodeCast::from_ref(c) != child)
{
.map(|c| c.root())
.any(|c| NodeCast::from_ref(c.r()) != child) {
return Err(HierarchyRequest);
}
if child.following_siblings()