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layout: Box block_margins_collapsed_with_children member of BoxFragment (#36474)

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This reduces the size of `BoxFragment` by around 20 bytes.

Testing: This just changes the layout of a data structure, so is
covered by existing WPT tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>
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Martin Robinson 2025-04-12 10:52:30 +02:00 • committed by GitHub
parent 3c4ec17180
commit a4a308e434
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7 changed files with 29 additions and 42 deletions
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7
components/layout_2020/flexbox/layout.rs
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@ -256,8 +256,6 @@ impl FlexLineItem<'_> {
size: item_used_size,
},
);
let margin = flex_context.sides_to_flow_relative(item_margin);
let collapsed_margin = CollapsedBlockMargins::from_margin(&margin);
if let Some(item_baseline) = self.layout_result.baseline_relative_to_margin_box.as_ref() {
let item_baseline = *item_baseline + item_content_cross_start_position -
@ -294,9 +292,10 @@ impl FlexLineItem<'_> {
flex_context
.sides_to_flow_relative(self.item.border)
.to_physical(container_writing_mode),
margin.to_physical(container_writing_mode),
flex_context
.sides_to_flow_relative(item_margin)
.to_physical(container_writing_mode),
None, /* clearance */
collapsed_margin,
);
// If this flex item establishes a containing block for absolutely-positioned