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Try to avoid crashing in HTML5 parser cycle collection

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This commit is contained in:
Henri Sivonen 2009-06-24 13:38:11 +03:00
parent d88f6b6525
commit b01c3bdb49
1 changed files with 11 additions and 7 deletions
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4
content/html/parser/src/nsHtml5TreeBuilderCppSupplement.h
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@ -556,13 +556,16 @@ nsHtml5TreeBuilder::DoTraverse(nsCycleCollectionTraversalCallback &cb)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(formPointer); NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(formPointer);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(headPointer); NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(headPointer);
if (stack) {
for (PRInt32 i = 0; i <= currentPtr; i++) { for (PRInt32 i = 0; i <= currentPtr; i++) {
#ifdef DEBUG_CC #ifdef DEBUG_CC
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "stack[i]"); NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "stack[i]");
#endif #endif
cb.NoteNativeChild(stack[i], &NS_CYCLE_COLLECTION_NAME(nsHtml5StackNode)); cb.NoteNativeChild(stack[i], &NS_CYCLE_COLLECTION_NAME(nsHtml5StackNode));
} }
}
if (listOfActiveFormattingElements) {
for (PRInt32 i = 0; i <= listPtr; i++) { for (PRInt32 i = 0; i <= listPtr; i++) {
if (listOfActiveFormattingElements[i]) { if (listOfActiveFormattingElements[i]) {
#ifdef DEBUG_CC #ifdef DEBUG_CC
@ -571,6 +574,7 @@ nsHtml5TreeBuilder::DoTraverse(nsCycleCollectionTraversalCallback &cb)
cb.NoteNativeChild(listOfActiveFormattingElements[i], &NS_CYCLE_COLLECTION_NAME(nsHtml5StackNode)); cb.NoteNativeChild(listOfActiveFormattingElements[i], &NS_CYCLE_COLLECTION_NAME(nsHtml5StackNode));
} }
} }
}
const nsHtml5TreeOperation* start = mOpQueue.Elements(); const nsHtml5TreeOperation* start = mOpQueue.Elements();
const nsHtml5TreeOperation* end = start + mOpQueue.Length(); const nsHtml5TreeOperation* end = start + mOpQueue.Length();