void
CheckHeapTracer::onChild(const JS::GCCellPtr& thing)
{
Cell* cell = thing.asCell();
if (visited.lookup(cell))
return;
if (!visited.put(cell)) {
oom = true;
return;
}
if (!IsGCThingValidAfterMovingGC(cell)) {
failures++;
fprintf(stderr, "Stale pointer %p\n", cell);
const char* name = contextName();
for (int index = parentIndex; index != -1; index = stack[index].parentIndex) {
const WorkItem& parent = stack[index];
cell = parent.thing.asCell();
fprintf(stderr, " from %s %p %s edge\n",
GCTraceKindToAscii(cell->getTraceKind()), cell, name);
name = parent.name;
}
fprintf(stderr, " from root %s\n", name);
return;
}
WorkItem item(thing, contextName(), parentIndex);
if (!stack.append(item))
oom = true;
}