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layout: Promote absolute positioning, floatedness, and clearance into

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flags to avoid virtual calls.

These were showing up really high in the maze solver profile.
This commit is contained in:
Patrick Walton 2014-10-28 15:38:18 -07:00
parent c20bb66aef
commit 587cf98209
7 changed files with 156 additions and 133 deletions
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9
components/layout/construct.rs
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@ -336,9 +336,8 @@ impl<'a> FlowConstructor<'a> {
// remain. In that case the inline flow will compute its ascent and descent to be zero.
let fragments = TextRunScanner::new().scan_for_runs(self.layout_context.font_context(),
fragments);
let mut inline_flow_ref = FlowRef::new(box InlineFlow::from_fragments((*node).clone(),
fragments));
let mut inline_flow_ref =
FlowRef::new(box InlineFlow::from_fragments(fragments, node.style().writing_mode));
// Add all the inline-block fragments as children of the inline flow.
for inline_block_flow in inline_block_flows.iter() {
@ -530,7 +529,7 @@ impl<'a> FlowConstructor<'a> {
// Set up the absolute descendants.
let is_positioned = flow.as_block().is_positioned();
let is_absolutely_positioned = flow.as_block().is_absolutely_positioned();
let is_absolutely_positioned = flow::base(&*flow).flags.is_absolutely_positioned();
if is_positioned {
// This is the containing block for all the absolute descendants.
flow.set_absolute_descendants(abs_descendants);
@ -845,7 +844,7 @@ impl<'a> FlowConstructor<'a> {
wrapper_flow.finish();
let is_positioned = wrapper_flow.as_block().is_positioned();
let is_fixed_positioned = wrapper_flow.as_block().is_fixed();
let is_absolutely_positioned = wrapper_flow.as_block().is_absolutely_positioned();
let is_absolutely_positioned = flow::base(&*wrapper_flow).flags.is_absolutely_positioned();
if is_positioned {
// This is the containing block for all the absolute descendants.
wrapper_flow.set_absolute_descendants(abs_descendants);