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LibWeb: Allocate CSS::ComputedValues objects on the heap

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This makes them cheap to move around, since we can store them in a
NonnullOwnPtr instead of memcopying 2584(!) bytes.

Drastically reduces the chance of stack overflow while building the
layout tree for deeply nested DOMs (since tree building was putting
these things on the stack).

This change also exposed a completely unnecessary ComputedValues deep
copy in block layout.
This commit is contained in:
Andreas Kling 2024-01-27 08:38:27 +01:00
parent d89e42902e
commit ad7e6878fe
11 changed files with 40 additions and 33 deletions
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2
Userland/Libraries/LibWeb/Layout/TableWrapper.cpp
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@ -13,7 +13,7 @@ TableWrapper::TableWrapper(DOM::Document& document, DOM::Node* node, NonnullRefP
{
}
TableWrapper::TableWrapper(DOM::Document& document, DOM::Node* node, CSS::ComputedValues computed_values)
TableWrapper::TableWrapper(DOM::Document& document, DOM::Node* node, NonnullOwnPtr<CSS::ComputedValues> computed_values)
: BlockContainer(document, node, move(computed_values))
{
}