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Remove TLayoutNode::first_child.

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It is replaced by the TNode implementation for LayoutNode and an inherent
implementation for ThreadSafeLayoutNode.
This commit is contained in:
Ms2ger 2015-06-21 17:16:18 +02:00
parent dc167ca343
commit 50d4084e9a
1 changed files with 16 additions and 31 deletions
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47
components/layout/wrapper.rs
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@ -83,9 +83,6 @@ pub trait TLayoutNode {
/// Returns the interior of this node as a `LayoutJS`. This is highly unsafe for layout to
/// call and as such is marked `unsafe`.
unsafe fn get_jsmanaged<'a>(&'a self) -> &'a LayoutJS<Node>;
/// Returns the first child of this node.
fn first_child(&self) -> Option<Self>;
}
/// A wrapper so that layout can access only the methods that it should have access to. Layout must
@ -117,12 +114,6 @@ impl<'ln> TLayoutNode for LayoutNode<'ln> {
unsafe fn get_jsmanaged<'a>(&'a self) -> &'a LayoutJS<Node> {
&self.node
}
fn first_child(&self) -> Option<LayoutNode<'ln>> {
unsafe {
self.get_jsmanaged().first_child_ref().map(|node| self.new_with_this_lifetime(&node))
}
}
}
impl<'ln> LayoutNode<'ln> {
@ -176,14 +167,8 @@ impl<'ln> LayoutNode<'ln> {
/// Returns an iterator over this node's children.
pub fn children(self) -> LayoutNodeChildrenIterator<'ln> {
// FIXME(zwarich): Remove this when UFCS lands and there is a better way
// of disambiguating methods.
fn first_child<T: TLayoutNode>(this: T) -> Option<T> {
this.first_child()
}
LayoutNodeChildrenIterator {
current: first_child(self),
current: self.first_child(),
}
}
@ -216,7 +201,7 @@ impl<'ln> LayoutNode<'ln> {
}
pub fn has_children(self) -> bool {
TLayoutNode::first_child(&self).is_some()
self.first_child().is_some()
}
/// While doing a reflow, the node at the root has no parent, as far as we're
@ -630,20 +615,6 @@ impl<'ln> TLayoutNode for ThreadSafeLayoutNode<'ln> {
unsafe fn get_jsmanaged<'a>(&'a self) -> &'a LayoutJS<Node> {
self.node.get_jsmanaged()
}
fn first_child(&self) -> Option<ThreadSafeLayoutNode<'ln>> {
if self.pseudo != PseudoElementType::Normal {
return None
}
if self.has_before_pseudo() {
return Some(self.with_pseudo(PseudoElementType::Before(self.get_before_display())));
}
unsafe {
self.get_jsmanaged().first_child_ref().map(|node| self.new_with_this_lifetime(&node))
}
}
}
impl<'ln> ThreadSafeLayoutNode<'ln> {
@ -682,6 +653,20 @@ impl<'ln> ThreadSafeLayoutNode<'ln> {
self.node.flow_debug_id()
}
fn first_child(&self) -> Option<ThreadSafeLayoutNode<'ln>> {
if self.pseudo != PseudoElementType::Normal {
return None
}
if self.has_before_pseudo() {
return Some(self.with_pseudo(PseudoElementType::Before(self.get_before_display())));
}
unsafe {
self.get_jsmanaged().first_child_ref().map(|node| self.new_with_this_lifetime(&node))
}
}
/// Returns the next sibling of this node. Unsafe and private because this can lead to races.
unsafe fn next_sibling(&self) -> Option<ThreadSafeLayoutNode<'ln>> {
if self.pseudo.is_before() {