Structure::Structure(VM& vm, Structure* previous)
: JSCell(vm, vm.structureStructure.get())
, m_prototype(vm, this, previous->storedPrototype())
, m_classInfo(previous->m_classInfo)
, m_transitionWatchpointSet(IsWatched)
, m_offset(invalidOffset)
, m_inlineCapacity(previous->m_inlineCapacity)
, m_bitField(0)
{
setDictionaryKind(previous->dictionaryKind());
setIsPinnedPropertyTable(previous->hasBeenFlattenedBefore());
setHasGetterSetterProperties(previous->hasGetterSetterProperties());
setHasCustomGetterSetterProperties(previous->hasCustomGetterSetterProperties());
setHasReadOnlyOrGetterSetterPropertiesExcludingProto(previous->hasReadOnlyOrGetterSetterPropertiesExcludingProto());
setHasNonEnumerableProperties(previous->hasNonEnumerableProperties());
setAttributesInPrevious(0);
setPreventExtensions(previous->preventExtensions());
setDidTransition(true);
setStaticFunctionsReified(previous->staticFunctionsReified());
setHasRareData(false);
TypeInfo typeInfo = previous->typeInfo();
m_blob = StructureIDBlob(vm.heap.structureIDTable().allocateID(this), previous->indexingTypeIncludingHistory(), typeInfo);
m_outOfLineTypeFlags = typeInfo.outOfLineTypeFlags();
ASSERT(!previous->typeInfo().structureIsImmortal());
setPreviousID(vm, previous);
previous->didTransitionFromThisStructure();
if (previous->m_globalObject)
m_globalObject.set(vm, this, previous->m_globalObject.get());
ASSERT(hasReadOnlyOrGetterSetterPropertiesExcludingProto() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
ASSERT(hasGetterSetterProperties() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
}
Structure::Structure(VM& vm, JSGlobalObject* globalObject, JSValue prototype, const TypeInfo& typeInfo, const ClassInfo* classInfo, IndexingType indexingType, unsigned inlineCapacity)
: JSCell(vm, vm.structureStructure.get())
, m_blob(vm.heap.structureIDTable().allocateID(this), indexingType, typeInfo)
, m_outOfLineTypeFlags(typeInfo.outOfLineTypeFlags())
, m_globalObject(vm, this, globalObject, WriteBarrier<JSGlobalObject>::MayBeNull)
, m_prototype(vm, this, prototype)
, m_classInfo(classInfo)
, m_transitionWatchpointSet(IsWatched)
, m_offset(invalidOffset)
, m_inlineCapacity(inlineCapacity)
, m_bitField(0)
{
setDictionaryKind(NoneDictionaryKind);
setIsPinnedPropertyTable(false);
setHasGetterSetterProperties(classInfo->hasStaticSetterOrReadonlyProperties());
setHasCustomGetterSetterProperties(false);
setHasReadOnlyOrGetterSetterPropertiesExcludingProto(classInfo->hasStaticSetterOrReadonlyProperties());
setHasNonEnumerableProperties(false);
setAttributesInPrevious(0);
setPreventExtensions(false);
setDidTransition(false);
setStaticFunctionsReified(false);
setHasRareData(false);
ASSERT(inlineCapacity <= JSFinalObject::maxInlineCapacity());
ASSERT(static_cast<PropertyOffset>(inlineCapacity) < firstOutOfLineOffset);
ASSERT(!hasRareData());
ASSERT(hasReadOnlyOrGetterSetterPropertiesExcludingProto() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
ASSERT(hasGetterSetterProperties() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
}
Structure::Structure(VM& vm)
: JSCell(CreatingEarlyCell)
, m_prototype(vm, this, jsNull())
, m_classInfo(info())
, m_transitionWatchpointSet(IsWatched)
, m_offset(invalidOffset)
, m_inlineCapacity(0)
, m_bitField(0)
{
setDictionaryKind(NoneDictionaryKind);
setIsPinnedPropertyTable(false);
setHasGetterSetterProperties(m_classInfo->hasStaticSetterOrReadonlyProperties());
setHasCustomGetterSetterProperties(false);
setHasReadOnlyOrGetterSetterPropertiesExcludingProto(m_classInfo->hasStaticSetterOrReadonlyProperties());
setHasNonEnumerableProperties(false);
setAttributesInPrevious(0);
setPreventExtensions(false);
setDidTransition(false);
setStaticFunctionsReified(false);
setHasRareData(false);
TypeInfo typeInfo = TypeInfo(CellType, StructureIsImmortal);
m_blob = StructureIDBlob(vm.heap.structureIDTable().allocateID(this), 0, typeInfo);
m_outOfLineTypeFlags = typeInfo.outOfLineTypeFlags();
ASSERT(hasReadOnlyOrGetterSetterPropertiesExcludingProto() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
ASSERT(hasGetterSetterProperties() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
}
Structure::Structure(VM& vm, Structure* previous, DeferredStructureTransitionWatchpointFire* deferred)
: JSCell(vm, vm.structureStructure.get())
, m_prototype(vm, this, previous->storedPrototype())
, m_classInfo(previous->m_classInfo)
, m_transitionWatchpointSet(IsWatched)
, m_offset(invalidOffset)
, m_inlineCapacity(previous->m_inlineCapacity)
, m_bitField(0)
{
setDictionaryKind(previous->dictionaryKind());
setIsPinnedPropertyTable(previous->hasBeenFlattenedBefore());
setHasGetterSetterProperties(previous->hasGetterSetterProperties());
setHasCustomGetterSetterProperties(previous->hasCustomGetterSetterProperties());
setHasReadOnlyOrGetterSetterPropertiesExcludingProto(previous->hasReadOnlyOrGetterSetterPropertiesExcludingProto());
setIsQuickPropertyAccessAllowedForEnumeration(previous->isQuickPropertyAccessAllowedForEnumeration());
setAttributesInPrevious(0);
setDidPreventExtensions(previous->didPreventExtensions());
setDidTransition(true);
setStaticPropertiesReified(previous->staticPropertiesReified());
setHasBeenDictionary(previous->hasBeenDictionary());
TypeInfo typeInfo = previous->typeInfo();
m_blob = StructureIDBlob(vm.heap.structureIDTable().allocateID(this), previous->indexingTypeIncludingHistory(), typeInfo);
m_outOfLineTypeFlags = typeInfo.outOfLineTypeFlags();
ASSERT(!previous->typeInfo().structureIsImmortal());
setPreviousID(vm, previous);
previous->didTransitionFromThisStructure(deferred);
// Copy this bit now, in case previous was being watched.
setTransitionWatchpointIsLikelyToBeFired(previous->transitionWatchpointIsLikelyToBeFired());
if (previous->m_globalObject)
m_globalObject.set(vm, this, previous->m_globalObject.get());
ASSERT(hasReadOnlyOrGetterSetterPropertiesExcludingProto() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
ASSERT(hasGetterSetterProperties() || !m_classInfo->hasStaticSetterOrReadonlyProperties());
}
