BOOL NullTypeHandlerBase::DeleteProperty(DynamicObject* instance, PropertyId propertyId, PropertyOperationFlags flags)
{
// Check numeric propertyId only if objectArray is available
ScriptContext* scriptContext = instance->GetScriptContext();
uint32 indexVal;
if (instance->HasObjectArray() && scriptContext->IsNumericPropertyId(propertyId, &indexVal))
{
return DynamicTypeHandler::DeleteItem(instance, indexVal, flags);
}
return true;
}
PropertyQueryFlags HeapArgumentsObject::HasPropertyQuery(PropertyId id, _Inout_opt_ PropertyValueInfo* info)
{
ScriptContext *scriptContext = GetScriptContext();
// Try to get a numbered property that maps to an actual argument.
uint32 index;
if (scriptContext->IsNumericPropertyId(id, &index) && index < this->HeapArgumentsObject::GetNumberOfArguments())
{
return HeapArgumentsObject::HasItemQuery(index);
}
return DynamicObject::HasPropertyQuery(id, info);
}
BOOL NullTypeHandlerBase::GetProperty(DynamicObject* instance, Var originalInstance, PropertyId propertyId, Var* value, PropertyValueInfo* info, ScriptContext* requestContext)
{
// Check numeric propertyId only if objectArray is available
uint32 indexVal;
ScriptContext* scriptContext = instance->GetScriptContext();
if (instance->HasObjectArray() && scriptContext->IsNumericPropertyId(propertyId, &indexVal))
{
return DynamicTypeHandler::GetItem(instance, originalInstance, indexVal, value, requestContext);
}
*value = requestContext->GetMissingPropertyResult();
return false;
}
BOOL NullTypeHandlerBase::HasProperty(DynamicObject* instance, PropertyId propertyId, __out_opt bool *noRedecl)
{
// Check numeric propertyId only if objectArray is available
uint32 indexVal;
ScriptContext* scriptContext = instance->GetScriptContext();
if (noRedecl != nullptr)
{
*noRedecl = false;
}
if (instance->HasObjectArray() && scriptContext->IsNumericPropertyId(propertyId, &indexVal))
{
return DynamicTypeHandler::HasItem(instance, indexVal);
}
return false;
}
BOOL HeapArgumentsObject::SetProperty(PropertyId propertyId, Var value, PropertyOperationFlags flags, PropertyValueInfo* info)
{
// Try to set a numbered property that maps to an actual argument.
ScriptContext *scriptContext = GetScriptContext();
uint32 index;
if (scriptContext->IsNumericPropertyId(propertyId, &index) && index < this->HeapArgumentsObject::GetNumberOfArguments())
{
if (this->SetItemAt(index, value))
{
return true;
}
}
// TODO: In strict mode, "callee" and "caller" cannot be set.
// length is also set in the dynamic object
return DynamicObject::SetProperty(propertyId, value, flags, info);
}
PropertyQueryFlags HeapArgumentsObject::GetPropertyQuery(Var originalInstance, PropertyId propertyId, Var* value, PropertyValueInfo* info, ScriptContext* requestContext)
{
ScriptContext *scriptContext = GetScriptContext();
// Try to get a numbered property that maps to an actual argument.
uint32 index;
if (scriptContext->IsNumericPropertyId(propertyId, &index) && index < this->HeapArgumentsObject::GetNumberOfArguments())
{
if (this->GetItemAt(index, value, requestContext))
{
return PropertyQueryFlags::Property_Found;
}
}
if (JavascriptConversion::PropertyQueryFlagsToBoolean(DynamicObject::GetPropertyQuery(originalInstance, propertyId, value, info, requestContext)))
{
// Property has been pre-set and not deleted. Use it.
return PropertyQueryFlags::Property_Found;
}
*value = requestContext->GetMissingPropertyResult();
return PropertyQueryFlags::Property_NotFound;
}
