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Clean up Node::ReplaceChild

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This commit is contained in:
David Zbarsky 2015-07-26 17:56:49 -04:00
parent 705c95dedb
commit cbd9695c73
1 changed files with 61 additions and 67 deletions
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128
components/script/dom/node.rs
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@ -2148,74 +2148,68 @@ impl<'a> NodeMethods for &'a Node {
NodeTypeId::CharacterData(CharacterDataTypeId::Text) if self.is_document() =>
return Err(HierarchyRequest),
NodeTypeId::DocumentType if !self.is_document() => return Err(HierarchyRequest),
NodeTypeId::DocumentFragment |
NodeTypeId::DocumentType |
NodeTypeId::Element(..) |
NodeTypeId::CharacterData(..) => (),
NodeTypeId::Document => return Err(HierarchyRequest)
NodeTypeId::Document => return Err(HierarchyRequest),
_ => ()
}
// Step 6.
match self.type_id {
NodeTypeId::Document => {
match node.type_id() {
// Step 6.1
NodeTypeId::DocumentFragment => {
// Step 6.1.1(b)
if node.children()
.any(|c| c.r().is_text())
{
return Err(HierarchyRequest);
}
match node.child_elements().count() {
0 => (),
// Step 6.1.2
1 => {
if self.child_elements()
.any(|c| NodeCast::from_ref(c.r()) != child) {
return Err(HierarchyRequest);
}
if child.following_siblings()
.any(|child| child.r().is_doctype()) {
return Err(HierarchyRequest);
}
},
// Step 6.1.1(a)
_ => return Err(HierarchyRequest)
}
},
// Step 6.2
NodeTypeId::Element(..) => {
if self.child_elements()
.any(|c| NodeCast::from_ref(c.r()) != child) {
return Err(HierarchyRequest);
}
if child.following_siblings()
.any(|child| child.r().is_doctype())
{
return Err(HierarchyRequest);
}
},
// Step 6.3
NodeTypeId::DocumentType => {
if self.children()
.any(|c| c.r().is_doctype() &&
c.r() != child)
{
return Err(HierarchyRequest);
}
if self.children()
.take_while(|c| c.r() != child)
.any(|c| c.r().is_element())
{
return Err(HierarchyRequest);
}
},
NodeTypeId::CharacterData(..) => (),
NodeTypeId::Document => unreachable!()
}
},
_ => ()
if self.is_document() {
match node.type_id() {
// Step 6.1
NodeTypeId::DocumentFragment => {
// Step 6.1.1(b)
if node.children()
.any(|c| c.is_text())
{
return Err(HierarchyRequest);
}
match node.child_elements().count() {
0 => (),
// Step 6.1.2
1 => {
if self.child_elements()
.any(|c| NodeCast::from_ref(c.r()) != child) {
return Err(HierarchyRequest);
}
if child.following_siblings()
.any(|child| child.is_doctype()) {
return Err(HierarchyRequest);
}
},
// Step 6.1.1(a)
_ => return Err(HierarchyRequest)
}
},
// Step 6.2
NodeTypeId::Element(..) => {
if self.child_elements()
.any(|c| NodeCast::from_ref(c.r()) != child) {
return Err(HierarchyRequest);
}
if child.following_siblings()
.any(|child| child.is_doctype())
{
return Err(HierarchyRequest);
}
},
// Step 6.3
NodeTypeId::DocumentType => {
if self.children()
.any(|c| c.is_doctype() &&
c.r() != child)
{
return Err(HierarchyRequest);
}
if self.children()
.take_while(|c| c.r() != child)
.any(|c| c.is_element())
{
return Err(HierarchyRequest);
}
},
NodeTypeId::CharacterData(..) => (),
NodeTypeId::Document => unreachable!()
}
}
// Ok if not caught by previous error checks.
@ -2224,8 +2218,8 @@ impl<'a> NodeMethods for &'a Node {
}
// Step 7-8.
let child_next_sibling = child.next_sibling.get().map(Root::from_rooted);
let node_next_sibling = node.next_sibling.get().map(Root::from_rooted);
let child_next_sibling = child.GetNextSibling();
let node_next_sibling = node.GetNextSibling();
let reference_child = if child_next_sibling.r() == Some(node) {
node_next_sibling.r()
} else {