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LibJS: Allow cells to mark null pointers

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This simplifies the cell visiting functions by letting them not worry
about the pointers they pass to the visitor being null.
This commit is contained in:
Andreas Kling 2020-04-16 16:07:50 +02:00
parent 1f4e3dd073
commit 1b391d78ae
5 changed files with 16 additions and 13 deletions
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7
Libraries/LibJS/Heap/Heap.cpp
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@ -188,7 +188,7 @@ class MarkingVisitor final : public Cell::Visitor {
public:
MarkingVisitor() {}
virtual void visit(Cell* cell)
virtual void visit_impl(Cell* cell)
{
if (cell->is_marked())
return;
@ -206,11 +206,8 @@ void Heap::mark_live_cells(const HashTable<Cell*>& roots)
dbg() << "mark_live_cells:";
#endif
MarkingVisitor visitor;
for (auto* root : roots) {
if (!root)
continue;
for (auto* root : roots)
visitor.visit(root);
}
}
void Heap::sweep_dead_cells()