bool StringObject::getOwnPropertySlot(JSObject* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
StringObject* thisObject = jsCast<StringObject*>(cell);
if (thisObject->internalValue()->getStringPropertySlot(exec, propertyName, slot))
return true;
return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
bool StringObject::getOwnPropertySlot(JSCell* cell, ExecState* exec, unsigned propertyName, PropertySlot& slot)
{
StringObject* thisObject = static_cast<StringObject*>(cell);
if (thisObject->internalValue()->getStringPropertySlot(exec, propertyName, slot))
return true;
return JSObject::getOwnPropertySlot(thisObject, exec, Identifier::from(exec, propertyName), slot);
}
bool StringObject::getOwnPropertySlotByIndex(JSObject* object, ExecState* exec, unsigned propertyName, PropertySlot& slot)
{
StringObject* thisObject = jsCast<StringObject*>(object);
if (thisObject->internalValue()->getStringPropertySlot(exec, propertyName, slot))
return true;
return JSObject::getOwnPropertySlot(thisObject, exec, Identifier::from(exec, propertyName), slot);
}
bool StringObject::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
StringObject* thisObject = jsCast<StringObject*>(object);
if (thisObject->internalValue()->getStringPropertyDescriptor(exec, propertyName, descriptor))
return true;
return JSObject::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
}
bool StringObject::deletePropertyByIndex(JSCell* cell, ExecState* exec, unsigned i)
{
StringObject* thisObject = jsCast<StringObject*>(cell);
if (thisObject->internalValue()->canGetIndex(i))
return false;
return JSObject::deletePropertyByIndex(thisObject, exec, i);
}
bool StringObject::putByIndex(JSCell* cell, ExecState* exec, unsigned propertyName, JSValue value, bool shouldThrow)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
StringObject* thisObject = jsCast<StringObject*>(cell);
if (thisObject->internalValue()->canGetIndex(propertyName))
return typeError(exec, scope, shouldThrow, ASCIILiteral(ReadonlyPropertyWriteError));
return JSObject::putByIndex(cell, exec, propertyName, value, shouldThrow);
}
bool StringObject::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName)
{
StringObject* thisObject = jsCast<StringObject*>(cell);
if (propertyName == exec->propertyNames().length)
return false;
Optional<uint32_t> index = parseIndex(propertyName);
if (index && thisObject->internalValue()->canGetIndex(index.value()))
return false;
return JSObject::deleteProperty(thisObject, exec, propertyName);
}
void StringObject::putByIndex(JSCell* cell, ExecState* exec, unsigned propertyName, JSValue value, bool shouldThrow)
{
StringObject* thisObject = jsCast<StringObject*>(cell);
if (thisObject->internalValue()->canGetIndex(propertyName)) {
if (shouldThrow)
throwTypeError(exec, StrictModeReadonlyPropertyWriteError);
return;
}
JSObject::putByIndex(cell, exec, propertyName, value, shouldThrow);
}
void StringObject::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
StringObject* thisObject = jsCast<StringObject*>(object);
int size = thisObject->internalValue()->length();
for (int i = 0; i < size; ++i)
propertyNames.add(Identifier(exec, String::number(i)));
if (mode == IncludeDontEnumProperties)
propertyNames.add(exec->propertyNames().length);
return JSObject::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}
bool StringObject::deleteProperty(JSCell* cell, ExecState* exec, const Identifier& propertyName)
{
StringObject* thisObject = static_cast<StringObject*>(cell);
if (propertyName == exec->propertyNames().length)
return false;
bool isStrictUInt32;
unsigned i = propertyName.toUInt32(isStrictUInt32);
if (isStrictUInt32 && thisObject->internalValue()->canGetIndex(i))
return false;
return JSObject::deleteProperty(thisObject, exec, propertyName);
}
bool StringObject::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName)
{
StringObject* thisObject = jsCast<StringObject*>(cell);
if (propertyName == exec->propertyNames().length)
return false;
unsigned i = propertyName.asIndex();
if (thisObject->internalValue()->canGetIndex(i)) {
ASSERT(i != PropertyName::NotAnIndex); // No need for an explicit check, the above test would always fail!
return false;
}
return JSObject::deleteProperty(thisObject, exec, propertyName);
}
bool StringObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor, bool throwException)
{
StringObject* thisObject = jsCast<StringObject*>(object);
if (propertyName == exec->propertyNames().length) {
if (!object->isExtensible()) {
if (throwException)
throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to define property on object that is not extensible.")));
return false;
}
if (descriptor.configurablePresent() && descriptor.configurable()) {
if (throwException)
throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to configurable attribute of unconfigurable property.")));
return false;
}
if (descriptor.enumerablePresent() && descriptor.enumerable()) {
if (throwException)
throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change enumerable attribute of unconfigurable property.")));
return false;
}
if (descriptor.isAccessorDescriptor()) {
if (throwException)
throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change access mechanism for an unconfigurable property.")));
return false;
}
if (descriptor.writablePresent() && descriptor.writable()) {
if (throwException)
throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change writable attribute of unconfigurable property.")));
return false;
}
if (!descriptor.value())
return true;
if (propertyName == exec->propertyNames().length && sameValue(exec, descriptor.value(), jsNumber(thisObject->internalValue()->length())))
return true;
if (throwException)
throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change value of a readonly property.")));
return false;
}
return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);
}