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Fix confusing push_or_mutate API

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This fixes a bug when recalculating border collapsing for an existing table
now. The bug was caused by using `push_or_mutate` which has no effect if there
is already a value at the specified index.

The fix switches incorrect `push_or_mutate` calls to use `push_or_set`
instead. It also renames `push_or_mutate` to `get_mut_or_push` which I think
is a less-confusing name for this method.
This commit is contained in:
Matt Brubeck 2016-02-29 13:05:46 -08:00
parent 4bcdbe6d56
commit 4dc9d8b1c5
2 changed files with 11 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

7
components/layout/table_row.rs
View file

@ -823,7 +823,8 @@ fn perform_inline_direction_border_collapse_for_row(
child_table_cell: &mut TableCellFlow,
iterator: &mut Peekable<Enumerate<MutFlowListIterator>>,
preliminary_collapsed_borders: &mut CollapsedBordersForRow) {
let inline_collapsed_border = preliminary_collapsed_borders.inline.push_or_mutate(
println!(" perform_inline_direction_border_collapse_for_row");
let inline_collapsed_border = preliminary_collapsed_borders.inline.push_or_set(
child_index + 1,
CollapsedBorder::inline_end(&*child_table_cell.block_flow.fragment.style,
CollapsedBorderProvenance::FromPreviousTableCell));
@ -838,9 +839,9 @@ fn perform_inline_direction_border_collapse_for_row(
let block_start_border =
CollapsedBorder::block_start(&*child_table_cell.block_flow.fragment.style,
CollapsedBorderProvenance::FromNextTableCell);
preliminary_collapsed_borders.block_start.push_or_mutate(child_index, block_start_border);
preliminary_collapsed_borders.block_start.push_or_set(child_index, block_start_border);
let block_end_border =
CollapsedBorder::block_end(&*child_table_cell.block_flow.fragment.style,
CollapsedBorderProvenance::FromPreviousTableCell);
preliminary_collapsed_borders.block_end.push_or_mutate(child_index, block_end_border);
preliminary_collapsed_borders.block_end.push_or_set(child_index, block_end_border);
}