Structure* Structure::despecifyFunctionTransition(JSGlobalData& globalData, Structure* structure, PropertyName replaceFunction)
{
ASSERT(structure->m_specificFunctionThrashCount < maxSpecificFunctionThrashCount);
Structure* transition = create(globalData, structure);
++transition->m_specificFunctionThrashCount;
// Don't set m_offset, as one can not transition to this.
structure->materializePropertyMapIfNecessary(globalData);
transition->m_propertyTable = structure->copyPropertyTableForPinning(globalData, transition);
transition->pin();
if (transition->m_specificFunctionThrashCount == maxSpecificFunctionThrashCount)
transition->despecifyAllFunctions(globalData);
else {
bool removed = transition->despecifyFunction(globalData, replaceFunction);
ASSERT_UNUSED(removed, removed);
}
return transition;
}
Structure* Structure::despecifyFunctionTransition(JSGlobalData& globalData, Structure* structure, PropertyName replaceFunction)
{
ASSERT(structure->m_specificFunctionThrashCount < maxSpecificFunctionThrashCount);
Structure* transition = create(globalData, structure);
++transition->m_specificFunctionThrashCount;
structure->materializePropertyMapIfNecessary(globalData);
transition->propertyTable().set(globalData, transition, structure->copyPropertyTableForPinning(globalData, transition));
transition->m_offset = structure->m_offset;
transition->pin();
if (transition->m_specificFunctionThrashCount == maxSpecificFunctionThrashCount)
transition->despecifyAllFunctions(globalData);
else {
bool removed = transition->despecifyFunction(globalData, replaceFunction);
ASSERT_UNUSED(removed, removed);
}
transition->checkOffsetConsistency();
return transition;
}