C++ (Cpp) UObject::HasAllFlags Examples

Example #1

File: ObjectMemoryAnalyzer.cpp Project: RandomDeveloperM/UE4_Hairworks

void FObjectMemoryAnalyzer::AnalyzeObjects( UClass* InBaseClass )
{
	if (InBaseClass == NULL)
	{
		InBaseClass = UObject::StaticClass();
	}

	uint32 ExclusionFlags = (AnalyzeFlags&EAnalyzeFlags::IncludeDefaultObjects)==0 ? (RF_ClassDefaultObject|RF_ArchetypeObject) : 0;
	// Determine root objects
	for( FObjectIterator It(InBaseClass, false, (EObjectFlags)ExclusionFlags); It; ++It )
	{
		UObject* Object	= *It;

		if (!(AnalyzeFlags&EAnalyzeFlags::IncludeDefaultObjects) && Object->IsDefaultSubobject()) { continue; };

		FObjectMemoryUsage& Annotation = MemUsageAnnotations.GetAnnotationRef(Object);

		if ( Object->HasAllFlags(RF_Standalone) )
		{
			Annotation.Flags |= FObjectMemoryUsage::EObjFlags::IsRoot;
		}
		ProcessSubObjRecursive(Object, Object);
	}

	// mark 'loose' objets as root objects as well
	for( FObjectIterator It(InBaseClass, false, (EObjectFlags)ExclusionFlags); It; ++It )
	{
		UObject* Object	= *It;

		if (!(AnalyzeFlags&EAnalyzeFlags::IncludeDefaultObjects) && Object->IsDefaultSubobject()) { continue; };
	
		FObjectMemoryUsage& Annotation = MemUsageAnnotations.GetAnnotationRef(Object);
			
		if (!Annotation.IsRoot() && !Annotation.IsReferencedByRoot() && !Annotation.IsReferencedByNonRoot())
		{
			Annotation.Flags |= FObjectMemoryUsage::EObjFlags::IsRoot;
		}
	}

	for( FObjectIterator It(InBaseClass, false, (EObjectFlags)ExclusionFlags); It; ++It )
	{
		UObject* Object	= *It;
		
		if (!(AnalyzeFlags&EAnalyzeFlags::IncludeDefaultObjects) && Object->IsDefaultSubobject()) { continue; };

		FObjectMemoryUsage& Annotation = MemUsageAnnotations.GetAnnotationRef(Object);
		
		SIZE_T InclusiveSize = CalculateSizeRecursive(Object);
		Annotation.InclusiveMemoryUsage = InclusiveSize;
	}
}