C++ ensureMsgf函数代码示例

void UGameplayCueManager::UpdatePreallocation(UWorld* World)
{
	FPreallocationInfo& Info = GetPreallocationInfo(World);

	if (Info.ClassesNeedingPreallocation.Num() > 0)
	{
		AGameplayCueNotify_Actor* CDO = Info.ClassesNeedingPreallocation.Last();
		TArray<AGameplayCueNotify_Actor*>& PreallocatedList = Info.PreallocatedInstances.FindOrAdd(CDO->GetClass());

		AGameplayCueNotify_Actor* PrespawnedInstance = Cast<AGameplayCueNotify_Actor>(World->SpawnActor(CDO->GetClass()));
		ensureMsgf(PrespawnedInstance, TEXT("Failed to prespawn GC notify for: %s"), *GetNameSafe(CDO));
		ensureMsgf(PrespawnedInstance->IsPendingKill() == false, TEXT("Newly spawned GC is PendingKILL: %s"), *GetNameSafe(CDO));
		if (PrespawnedInstance)
		{
			if (LogGameplayCueActorSpawning)
			{
				ABILITY_LOG(Warning, TEXT("Prespawning GC %s"), *GetNameSafe(CDO));
			}

			PrespawnedInstance->bInRecycleQueue = true;
			PreallocatedList.Push(PrespawnedInstance);
			PrespawnedInstance->SetActorHiddenInGame(true);

			if (PreallocatedList.Num() >= CDO->NumPreallocatedInstances)
			{
				Info.ClassesNeedingPreallocation.Pop(false);
			}
		}
	}
}

void UEdGraphPin::MakeLinkTo(UEdGraphPin* ToPin)
{
	Modify();

	if (ToPin != NULL)
	{
		ToPin->Modify();

		// Make sure we don't already link to it
		if (!LinkedTo.Contains(ToPin))
		{
			UEdGraphNode* MyNode = GetOwningNode();

			// Check that the other pin does not link to us
			ensureMsgf(!ToPin->LinkedTo.Contains(this), *GetLinkInfoString( LOCTEXT("MakeLinkTo", "MakeLinkTo").ToString(), LOCTEXT("IsLinked", "is linked with pin").ToString(), ToPin));			    
			ensureMsgf(MyNode->GetOuter() == ToPin->GetOwningNode()->GetOuter(), *GetLinkInfoString( LOCTEXT("MakeLinkTo", "MakeLinkTo").ToString(), LOCTEXT("OuterMismatch", "has a different outer than pin").ToString(), ToPin)); // Ensure both pins belong to the same graph

			// Add to both lists
			LinkedTo.Add(ToPin);
			ToPin->LinkedTo.Add(this);

			GraphPinHelpers::EnableAllConnectedNodes(MyNode);
			GraphPinHelpers::EnableAllConnectedNodes(ToPin->GetOwningNode());
		}
	}
}

void FComponentSpacePoseLink::EvaluateComponentSpace(FComponentSpacePoseContext& Output)
{
#if DO_CHECK
	checkf( !bProcessed, TEXT( "EvaluateComponentSpace already in progress, circular link for AnimInstance [%s] Blueprint [%s]" ), \
		*Output.AnimInstanceProxy->GetAnimInstanceName(), *GetFullNameSafe(IAnimClassInterface::GetActualAnimClass(Output.AnimInstanceProxy->GetAnimClassInterface())));
	TGuardValue<bool> CircularGuard(bProcessed, true);
#endif

#if ENABLE_ANIMGRAPH_TRAVERSAL_DEBUG
	checkf(InitializationCounter.IsSynchronizedWith(Output.AnimInstanceProxy->GetInitializationCounter()), TEXT("Calling EvaluateComponentSpace without initialization!"));
	checkf(CachedBonesCounter.IsSynchronizedWith(Output.AnimInstanceProxy->GetCachedBonesCounter()), TEXT("Calling EvaluateComponentSpace without CachedBones!"));
	checkf(UpdateCounter.IsSynchronizedWith(Output.AnimInstanceProxy->GetUpdateCounter()), TEXT("Calling EvaluateComponentSpace without Update for this node!"));
	EvaluationCounter.SynchronizeWith(Output.AnimInstanceProxy->GetEvaluationCounter());
#endif

	if (LinkedNode != NULL)
	{
		LinkedNode->EvaluateComponentSpace(Output);

#if WITH_EDITOR
		Output.AnimInstanceProxy->RegisterWatchedPose(Output.Pose, LinkID);
#endif
	}
	else
	{
		//@TODO: Warning here?
		Output.ResetToRefPose();
	}

	// Detect non valid output
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
	if (Output.ContainsNaN())
	{
		// Show bone transform with some useful debug info
		for (const FTransform& Bone : Output.Pose.GetPose().GetBones())
		{
			if (Bone.ContainsNaN())
			{
				ensureMsgf(!Bone.ContainsNaN(), TEXT("Bone transform contains NaN from AnimInstance:[%s] Node:[%s] Value:[%s]")
					, *Output.AnimInstanceProxy->GetAnimInstanceName(), LinkedNode ? *LinkedNode->StaticStruct()->GetName() : TEXT("NULL"), *Bone.ToString());
			}
		}
	}

	if (!Output.IsNormalized())
	{
		// Show bone transform with some useful debug info
		for (const FTransform& Bone : Output.Pose.GetPose().GetBones())
		{
			if (!Bone.IsRotationNormalized())
			{
				ensureMsgf(Bone.IsRotationNormalized(), TEXT("Bone Rotation not normalized from AnimInstance:[%s] Node:[%s] Value:[%s]")
					, *Output.AnimInstanceProxy->GetAnimInstanceName(), LinkedNode ? *LinkedNode->StaticStruct()->GetName() : TEXT("NULL"), *Bone.ToString());
			}
		}
	}
#endif
}

void FPrimitiveSceneInfo::GatherLightingAttachmentGroupPrimitives(TArray<FPrimitiveSceneInfo*, SceneRenderingAllocator>& OutChildSceneInfos)
{
#if ENABLE_NAN_DIAGNOSTIC
	// local function that returns full name of object
	auto GetObjectName = [](const UPrimitiveComponent* InPrimitive)->FString
	{
		return (InPrimitive) ? InPrimitive->GetFullName() : FString(TEXT("Unknown Object"));
	};

	// verify that the current object has a valid bbox before adding it
	const float& BoundsRadius = this->Proxy->GetBounds().SphereRadius;
	if (ensureMsgf(!FMath::IsNaN(BoundsRadius) && FMath::IsFinite(BoundsRadius),
		TEXT("%s had an ill-formed bbox and was skipped during shadow setup, contact DavidH."), *GetObjectName(this->ComponentForDebuggingOnly)))
	{
		OutChildSceneInfos.Add(this);
	}
	else
	{
		// return, leaving the TArray empty
		return;
	}

#else 
	// add self at the head of this queue
	OutChildSceneInfos.Add(this);
#endif

	if (!LightingAttachmentRoot.IsValid() && Proxy->LightAttachmentsAsGroup())
	{
		const FAttachmentGroupSceneInfo* AttachmentGroup = Scene->AttachmentGroups.Find(PrimitiveComponentId);

		if (AttachmentGroup)
		{
			
			for (int32 ChildIndex = 0, ChildIndexMax = AttachmentGroup->Primitives.Num(); ChildIndex < ChildIndexMax; ChildIndex++)
			{
				FPrimitiveSceneInfo* ShadowChild = AttachmentGroup->Primitives[ChildIndex];
#if ENABLE_NAN_DIAGNOSTIC
				// Only enqueue objects with valid bounds using the normality of the SphereRaduis as criteria.

				const float& ShadowChildBoundsRadius = ShadowChild->Proxy->GetBounds().SphereRadius;

				if (ensureMsgf(!FMath::IsNaN(ShadowChildBoundsRadius) && FMath::IsFinite(ShadowChildBoundsRadius),
					TEXT("%s had an ill-formed bbox and was skipped during shadow setup, contact DavidH."), *GetObjectName(ShadowChild->ComponentForDebuggingOnly)))
				{
					checkSlow(!OutChildSceneInfos.Contains(ShadowChild))
				    OutChildSceneInfos.Add(ShadowChild);
				}
#else
				// enqueue all objects.
				checkSlow(!OutChildSceneInfos.Contains(ShadowChild))
			    OutChildSceneInfos.Add(ShadowChild);
#endif
			}
		}
	}
}

void UActorComponent::PostInitProperties()
{
	Super::PostInitProperties();

	AActor* Owner = GetOwner();
	ensureMsgf(Owner == NULL || Owner == GetOuter(), TEXT("Component %s is owned by %s by has an Outer of %s."), *GetName(), *Owner->GetName(), *GetOuter()->GetName());
}

//------------------------------------------------------------------------------
bool UBlueprintBoundEventNodeSpawner::IsBindingCompatible(UObject const* BindingCandidate) const
{
	bool bMatchesNodeType = false;
	if (NodeClass->IsChildOf<UK2Node_ComponentBoundEvent>())
	{
		UObjectProperty const* BindingProperty = Cast<UObjectProperty>(BindingCandidate);
		bMatchesNodeType = (BindingProperty != nullptr);
	}
	else if (NodeClass->IsChildOf<UK2Node_ActorBoundEvent>())
	{
		bMatchesNodeType = BindingCandidate->IsA<AActor>();
	}

	const UMulticastDelegateProperty* Delegate = GetEventDelegate();

	if ( !ensureMsgf(!FBlueprintNodeSpawnerUtils::IsStaleFieldAction(this), 
			TEXT("Invalid BlueprintBoundEventNodeSpawner (for %s). Was the action database properly updated when this class was compiled?"), 
			*Delegate->GetOwnerClass()->GetName()))
	{
		return false;
	}

	UClass* DelegateOwner = Delegate->GetOwnerClass()->GetAuthoritativeClass();
	UClass* BindingClass  = FBlueprintNodeSpawnerUtils::GetBindingClass(BindingCandidate)->GetAuthoritativeClass();

	return bMatchesNodeType && BindingClass->IsChildOf(DelegateOwner) && !FObjectEditorUtils::IsVariableCategoryHiddenFromClass(Delegate, BindingClass);
}

void UAnimSequenceBase::RefreshCacheData()
{
#if WITH_EDITOR
	SortNotifies();

	for (int32 TrackIndex=0; TrackIndex<AnimNotifyTracks.Num(); ++TrackIndex)
	{
		AnimNotifyTracks[TrackIndex].Notifies.Empty();
	}

	for (int32 NotifyIndex = 0; NotifyIndex<Notifies.Num(); ++NotifyIndex)
	{
		int32 TrackIndex = Notifies[NotifyIndex].TrackIndex;
		if (AnimNotifyTracks.IsValidIndex(TrackIndex))
		{
			AnimNotifyTracks[TrackIndex].Notifies.Add(&Notifies[NotifyIndex]);
		}
		else
		{
			// this notifyindex isn't valid, delete
			// this should not happen, but if it doesn, find best place to add
			ensureMsgf(0, TEXT("AnimNotifyTrack: Wrong indices found"));
			AnimNotifyTracks[0].Notifies.Add(&Notifies[NotifyIndex]);
		}
	}

	// notification broadcast
	OnNotifyChanged.Broadcast();
#endif //WITH_EDITOR
}

void FSlateRHIResourceManager::CreateTextures( const TArray< const FSlateBrush* >& Resources )
{
	DECLARE_SCOPE_CYCLE_COUNTER(TEXT("Loading Slate Textures"), STAT_Slate, STATGROUP_LoadTime);

	TMap<FName,FNewTextureInfo> TextureInfoMap;

	const uint32 Stride = GPixelFormats[PF_R8G8B8A8].BlockBytes;
	for( int32 ResourceIndex = 0; ResourceIndex < Resources.Num(); ++ResourceIndex )
	{
		const FSlateBrush& Brush = *Resources[ResourceIndex];
		const FName TextureName = Brush.GetResourceName();
		if( TextureName != NAME_None && !Brush.HasUObject() && !Brush.IsDynamicallyLoaded() && !ResourceMap.Contains(TextureName) )
		{
			// Find the texture or add it if it doesnt exist (only load the texture once)
			FNewTextureInfo& Info = TextureInfoMap.FindOrAdd( TextureName );
	
			Info.bSrgb = (Brush.ImageType != ESlateBrushImageType::Linear);

			// Only atlas the texture if none of the brushes that use it tile it and the image is srgb
		
			Info.bShouldAtlas &= ( Brush.Tiling == ESlateBrushTileType::NoTile && Info.bSrgb && AtlasSize > 0 );

			// Texture has been loaded if the texture data is valid
			if( !Info.TextureData.IsValid() )
			{
				uint32 Width = 0;
				uint32 Height = 0;
				TArray<uint8> RawData;
				bool bSucceeded = LoadTexture( Brush, Width, Height, RawData );

				Info.TextureData = MakeShareable( new FSlateTextureData( Width, Height, Stride, RawData ) );

				const bool bTooLargeForAtlas = (Width >= 256 || Height >= 256 || Width >= AtlasSize || Height >= AtlasSize );

				Info.bShouldAtlas &= !bTooLargeForAtlas;

				if( !bSucceeded || !ensureMsgf( Info.TextureData->GetRawBytes().Num() > 0, TEXT("Slate resource: (%s) contains no data"), *TextureName.ToString() ) )
				{
					TextureInfoMap.Remove( TextureName );
				}
			}
		}
	}

	// Sort textures by size.  The largest textures are atlased first which creates a more compact atlas
	TextureInfoMap.ValueSort( FCompareFNewTextureInfoByTextureSize() );

	for( TMap<FName,FNewTextureInfo>::TConstIterator It(TextureInfoMap); It; ++It )
	{
		const FNewTextureInfo& Info = It.Value();
		FName TextureName = It.Key();
		FString NameStr = TextureName.ToString();

		checkSlow( TextureName != NAME_None );

		FSlateShaderResourceProxy* NewTexture = GenerateTextureResource( Info );

		ResourceMap.Add( TextureName, NewTexture );
	}
}

FPinConnectionResponse UEdGraphSchema::MovePinLinks(UEdGraphPin& MoveFromPin, UEdGraphPin& MoveToPin, bool bIsIntermediateMove) const
{
#if WITH_EDITOR
	ensureMsgf(bIsIntermediateMove || !MoveToPin.GetOwningNode()->GetGraph()->HasAnyFlags(RF_Transient),
		TEXT("When moving to an Intermediate pin, use FKismetCompilerContext::MovePinLinksToIntermediate() instead of UEdGraphSchema::MovePinLinks()"));
#endif // #if WITH_EDITOR

	FPinConnectionResponse FinalResponse = FPinConnectionResponse(CONNECT_RESPONSE_MAKE, TEXT(""));
	// First copy the current set of links
	TArray<UEdGraphPin*> CurrentLinks = MoveFromPin.LinkedTo;
	// Then break all links at pin we are moving from
	MoveFromPin.BreakAllPinLinks();
	// Try and make each new connection
	for (int32 i=0; i<CurrentLinks.Num(); i++)
	{
		UEdGraphPin* NewLink = CurrentLinks[i];
		FPinConnectionResponse Response = CanCreateConnection(&MoveToPin, NewLink);
		if(Response.CanSafeConnect())
		{
			MoveToPin.MakeLinkTo(NewLink);
		}
		else
		{
			FinalResponse = Response;
		}
	}
	// Move over the default values
	MoveToPin.DefaultValue = MoveFromPin.DefaultValue;
	MoveToPin.DefaultObject = MoveFromPin.DefaultObject;
	MoveToPin.DefaultTextValue = MoveFromPin.DefaultTextValue;
	return FinalResponse;
}

bool UObjectBaseUtility::IsA( const UClass* SomeBase ) const
{
	UE_CLOG(!SomeBase, LogObj, Fatal, TEXT("IsA(NULL) cannot yield meaningful results"));

	#if UCLASS_FAST_ISA_IMPL & 1
		bool bOldResult = false;
		for ( UClass* TempClass=GetClass(); TempClass; TempClass=TempClass->GetSuperClass() )
		{
			if ( TempClass == SomeBase )
			{
				bOldResult = true;
				break;
			}
		}
	#endif

	#if UCLASS_FAST_ISA_IMPL & 2
		bool bNewResult = GetClass()->IsAUsingFastTree(*SomeBase);
	#endif

	#if (UCLASS_FAST_ISA_IMPL & 1) && (UCLASS_FAST_ISA_IMPL & 2)
		ensureMsgf(bOldResult == bNewResult, TEXT("New cast code failed"));
	#endif

	#if UCLASS_FAST_ISA_IMPL & 1
		return bOldResult;
	#else
		return bNewResult;
	#endif
}

const TCHAR* ELoadingPhase::ToString( const ELoadingPhase::Type Value )
{
	switch( Value )
	{
	case Default:
		return TEXT( "Default" );

	case PostDefault:
		return TEXT( "PostDefault" );

	case PreDefault:
		return TEXT( "PreDefault" );

	case PostConfigInit:
		return TEXT( "PostConfigInit" );
			
	case PreLoadingScreen:
		return TEXT( "PreLoadingScreen" );

	case PostEngineInit:
		return TEXT( "PostEngineInit" );

	default:
		ensureMsgf( false, TEXT( "Unrecognized ELoadingPhase value: %i" ), Value );
		return NULL;
	}
}

int32 TLinkerImportPlaceholder<UFunction>::ResolvePropertyReferences(UFunction* ReplacementFunc)
{
	int32 ReplacementCount = 0;
	UFunction* PlaceholderFunc = CastChecked<UFunction>(GetPlaceholderAsUObject());

	for (UProperty* Property : ReferencingProperties)
	{
		if (UDelegateProperty* DelegateProperty = Cast<UDelegateProperty>(Property))
		{
			if (DelegateProperty->SignatureFunction == PlaceholderFunc)
			{
				DelegateProperty->SignatureFunction = ReplacementFunc;
				++ReplacementCount;
			}
		}
		else if (UMulticastDelegateProperty* MulticastDelegateProperty = Cast<UMulticastDelegateProperty>(Property))
		{
			if (MulticastDelegateProperty->SignatureFunction == PlaceholderFunc)
			{
				MulticastDelegateProperty->SignatureFunction = ReplacementFunc;
				++ReplacementCount;
			}
		}
		else
		{
			ensureMsgf(false, TEXT("Unhandled property type: %s"), *Property->GetClass()->GetName());
		}
	}

	ReferencingProperties.Empty();
	return ReplacementCount;
}

void FBlueprintNativeCodeGenModule::GenerateStubs()
{
	TSet<TAssetPtr<UBlueprint>> AlreadyGenerated;
	while (AlreadyGenerated.Num() < StubsRequiredByGeneratedCode.Num())
	{
		const int32 OldGeneratedNum = AlreadyGenerated.Num();
		for (TAssetPtr<UBlueprint>& BPPtr : StubsRequiredByGeneratedCode)
		{
			bool bAlreadyGenerated = false;
			AlreadyGenerated.Add(BPPtr, &bAlreadyGenerated);
			if (bAlreadyGenerated)
			{
				continue;
			}

			ensureMsgf(AllPotentialStubs.Contains(BPPtr), TEXT("A required blueprint doesn't generate stub: %s"), *BPPtr.ToString());
			for (auto& PlatformName : TargetPlatformNames)
			{
				GenerateSingleStub(BPPtr.LoadSynchronous(), *PlatformName);
			}
		}

		if (!ensure(OldGeneratedNum != AlreadyGenerated.Num()))
		{
			break;
		}
	}

	UE_LOG(LogBlueprintCodeGen, Log, TEXT("GenerateStubs - all unconverted bp: %d, generated wrapers: %d"), AllPotentialStubs.Num(), StubsRequiredByGeneratedCode.Num());
}

void FLevelSequenceObjectReferenceMap::CreateBinding(const FGuid& ObjectId, const FLevelSequenceObjectReference& ObjectReference)
{
	if (ensureMsgf(ObjectReference.IsValid(), TEXT("Invalid object reference specifed for binding")))
	{
		Map.FindOrAdd(ObjectId) = ObjectReference;
	}
}

FMovieSceneSequenceInstance::~FMovieSceneSequenceInstance()
{
	for (auto& Pair : SpawnedObjects)
	{
		ensureMsgf(!Pair.Value.Get(), TEXT("Sequence instance is being destroyed but still has spawned objects"));
	}
}