bool RegExpObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor, bool shouldThrow)
{
if (propertyName == exec->propertyNames().lastIndex) {
RegExpObject* regExp = asRegExpObject(object);
if (descriptor.configurablePresent() && descriptor.configurable())
return reject(exec, shouldThrow, "Attempting to change configurable attribute of unconfigurable property.");
if (descriptor.enumerablePresent() && descriptor.enumerable())
return reject(exec, shouldThrow, "Attempting to change enumerable attribute of unconfigurable property.");
if (descriptor.isAccessorDescriptor())
return reject(exec, shouldThrow, "Attempting to change access mechanism for an unconfigurable property.");
if (!regExp->m_lastIndexIsWritable) {
if (descriptor.writablePresent() && descriptor.writable())
return reject(exec, shouldThrow, "Attempting to change writable attribute of unconfigurable property.");
if (!sameValue(exec, regExp->getLastIndex(), descriptor.value()))
return reject(exec, shouldThrow, "Attempting to change value of a readonly property.");
return true;
}
if (descriptor.writablePresent() && !descriptor.writable())
regExp->m_lastIndexIsWritable = false;
if (descriptor.value())
regExp->setLastIndex(exec, descriptor.value(), false);
return true;
}
return Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow);
}
bool RegExpObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (propertyName == vm.propertyNames->lastIndex) {
RegExpObject* regExp = asRegExpObject(object);
if (descriptor.configurablePresent() && descriptor.configurable())
return typeError(exec, scope, shouldThrow, ASCIILiteral(UnconfigurablePropertyChangeConfigurabilityError));
if (descriptor.enumerablePresent() && descriptor.enumerable())
return typeError(exec, scope, shouldThrow, ASCIILiteral(UnconfigurablePropertyChangeEnumerabilityError));
if (descriptor.isAccessorDescriptor())
return typeError(exec, scope, shouldThrow, ASCIILiteral(UnconfigurablePropertyChangeAccessMechanismError));
if (!regExp->m_lastIndexIsWritable) {
if (descriptor.writablePresent() && descriptor.writable())
return typeError(exec, scope, shouldThrow, ASCIILiteral(UnconfigurablePropertyChangeWritabilityError));
if (!sameValue(exec, regExp->getLastIndex(), descriptor.value()))
return typeError(exec, scope, shouldThrow, ASCIILiteral(ReadonlyPropertyChangeError));
return true;
}
if (descriptor.value()) {
regExp->setLastIndex(exec, descriptor.value(), false);
RETURN_IF_EXCEPTION(scope, false);
}
if (descriptor.writablePresent() && !descriptor.writable())
regExp->m_lastIndexIsWritable = false;
return true;
}
scope.release();
return Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow);
}
bool RegExpObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
if (propertyName == exec->propertyNames().lastIndex) {
RegExpObject* regExp = asRegExpObject(object);
slot.setValue(regExp, regExp->getLastIndex());
return true;
}
return getStaticValueSlot<RegExpObject, JSObject>(exec, ExecState::regExpTable(exec), jsCast<RegExpObject*>(object), propertyName, slot);
}
bool RegExpObject::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
if (propertyName == exec->propertyNames().lastIndex) {
RegExpObject* regExp = asRegExpObject(object);
descriptor.setDescriptor(regExp->getLastIndex(), regExp->m_lastIndexIsWritable ? DontDelete | DontEnum : DontDelete | DontEnum | ReadOnly);
return true;
}
return getStaticValueDescriptor<RegExpObject, JSObject>(exec, ExecState::regExpTable(exec), jsCast<RegExpObject*>(object), propertyName, descriptor);
}
bool RegExpObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
if (propertyName == exec->propertyNames().lastIndex) {
RegExpObject* regExp = asRegExpObject(object);
unsigned attributes = regExp->m_lastIndexIsWritable ? DontDelete | DontEnum : DontDelete | DontEnum | ReadOnly;
slot.setValue(regExp, attributes, regExp->getLastIndex());
return true;
}
return Base::getOwnPropertySlot(object, exec, propertyName, slot);
}
