void handleStringGetByVal()
{
if (!m_node->arrayMode().isOutOfBounds())
return;
if (!globalObject()->stringPrototypeChainIsSane())
return;
addLazily(globalObject()->stringPrototype()->structure()->transitionWatchpointSet());
addLazily(globalObject()->objectPrototype()->structure()->transitionWatchpointSet());
}
void handle()
{
switch (m_node->op()) {
case CompareEqConstant:
case IsUndefined:
handleMasqueradesAsUndefined();
break;
case CompareEq:
if (m_node->isBinaryUseKind(ObjectUse)
|| (m_node->child1().useKind() == ObjectUse && m_node->child2().useKind() == ObjectOrOtherUse)
|| (m_node->child1().useKind() == ObjectOrOtherUse && m_node->child2().useKind() == ObjectUse))
handleMasqueradesAsUndefined();
break;
case LogicalNot:
case Branch:
switch (m_node->child1().useKind()) {
case ObjectOrOtherUse:
case UntypedUse:
handleMasqueradesAsUndefined();
break;
default:
break;
}
break;
case VarInjectionWatchpoint:
addLazily(globalObject()->varInjectionWatchpoint());
break;
default:
break;
}
}
bool DesiredWatchpoints::consider(Structure* structure)
{
if (!structure->dfgShouldWatch())
return false;
addLazily(structure->transitionWatchpointSet());
return true;
}
void handle()
{
switch (m_node->op()) {
case CompareEqConstant:
case IsUndefined:
handleMasqueradesAsUndefined();
break;
case CompareEq:
if (m_node->isBinaryUseKind(ObjectUse)
|| (m_node->child1().useKind() == ObjectUse && m_node->child2().useKind() == ObjectOrOtherUse)
|| (m_node->child1().useKind() == ObjectOrOtherUse && m_node->child2().useKind() == ObjectUse))
handleMasqueradesAsUndefined();
break;
case LogicalNot:
case Branch:
if (m_node->child1().useKind() == ObjectOrOtherUse)
handleMasqueradesAsUndefined();
break;
case GetByVal:
if (m_node->arrayMode().type() == Array::Double
&& m_node->arrayMode().isSaneChain()) {
addLazily(globalObject()->arrayPrototype()->structure()->transitionWatchpointSet());
addLazily(globalObject()->objectPrototype()->structure()->transitionWatchpointSet());
}
if (m_node->arrayMode().type() == Array::String)
handleStringGetByVal();
if (JSArrayBufferView* view = m_graph.tryGetFoldableViewForChild1(m_node))
addLazily(view);
break;
case PutByVal:
if (JSArrayBufferView* view = m_graph.tryGetFoldableViewForChild1(m_node))
addLazily(view);
break;
case StringCharAt:
handleStringGetByVal();
break;
case NewArray:
case NewArrayWithSize:
case NewArrayBuffer:
if (!globalObject()->isHavingABadTime() && !hasAnyArrayStorage(m_node->indexingType()))
addLazily(globalObject()->havingABadTimeWatchpoint());
break;
case AllocationProfileWatchpoint:
addLazily(m_node->castOperand<JSFunction*>()->allocationProfileWatchpointSet());
break;
case VarInjectionWatchpoint:
addLazily(globalObject()->varInjectionWatchpoint());
break;
case TypedArrayWatchpoint:
addLazily(m_node->typedArray());
break;
default:
break;
}
}
void handleMasqueradesAsUndefined()
{
if (m_graph.masqueradesAsUndefinedWatchpointIsStillValid(m_node->origin.semantic))
addLazily(globalObject()->masqueradesAsUndefinedWatchpoint());
}
