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17b7bc209b
The basic idea here is as follows: * Rule nodes are reference-counted, but releasing them adds them to a linked list rather than freeing them. This allows for the reuse that motivated the original GC scheme. * We get rid of the marking, and instead rely on the reference count. * Sweeping no longer requires a complicated traversal. We just pop items off the free list until it's empty. When a child is destroyed, its parent may go onto the free list. * We remove special handling for the root node, and use a regular reference-counted edge from the style set. * The free list automatically asserts that it's empty (meaning all nodes have been freed) in its destructor, which runs when the style set is destroyed. * We get rid of the list of style context roots on the style set. We still need a count though, because of the HasCachedStyleData check. |
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| .. | ||
| base | ||
| build | ||
| doc | ||
| forms | ||
| generic | ||
| inspector | ||
| ipc | ||
| mathml | ||
| media | ||
| printing | ||
| reftests | ||
| style | ||
| svg | ||
| tables | ||
| tools | ||
| xul | ||
| moz.build | ||