C++ UScriptStruct::IsNative方法代码示例

void FEmitDefaultValueHelper::OuterGenerate(FEmitterLocalContext& Context
	, const UProperty* Property
	, const FString& OuterPath
	, const uint8* DataContainer
	, const uint8* OptionalDefaultDataContainer
	, EPropertyAccessOperator AccessOperator
	, bool bAllowProtected)
{
	// Determine if the given property contains an instanced default subobject reference. We only get here if the values are not identical.
	auto IsInstancedSubobjectLambda = [&](int32 ArrayIndex) -> bool
	{
		if (auto ObjectProperty = Cast<UObjectProperty>(Property))
		{
			check(DataContainer);
			check(OptionalDefaultDataContainer);

			auto ObjectPropertyValue = ObjectProperty->GetObjectPropertyValue_InContainer(DataContainer, ArrayIndex);
			auto DefaultObjectPropertyValue = ObjectProperty->GetObjectPropertyValue_InContainer(OptionalDefaultDataContainer, ArrayIndex);
			if (ObjectPropertyValue && ObjectPropertyValue->IsDefaultSubobject() && DefaultObjectPropertyValue && DefaultObjectPropertyValue->IsDefaultSubobject() && ObjectPropertyValue->GetFName() == DefaultObjectPropertyValue->GetFName())
			{
				return true;
			}
		}

		return false;
	};

	if (Property->HasAnyPropertyFlags(CPF_EditorOnly | CPF_Transient))
	{
		UE_LOG(LogK2Compiler, Verbose, TEXT("FEmitDefaultValueHelper Skip EditorOnly or Transient property: %s"), *Property->GetPathName());
		return;
	}

	for (int32 ArrayIndex = 0; ArrayIndex < Property->ArrayDim; ++ArrayIndex)
	{
		if (!OptionalDefaultDataContainer
			|| (!Property->Identical_InContainer(DataContainer, OptionalDefaultDataContainer, ArrayIndex) && !IsInstancedSubobjectLambda(ArrayIndex)))
		{
			FString PathToMember;
			UBlueprintGeneratedClass* PropertyOwnerAsBPGC = Cast<UBlueprintGeneratedClass>(Property->GetOwnerClass());
			UScriptStruct* PropertyOwnerAsScriptStruct = Cast<UScriptStruct>(Property->GetOwnerStruct());
			const bool bNoexportProperty = PropertyOwnerAsScriptStruct
				&& PropertyOwnerAsScriptStruct->IsNative()
				&& (PropertyOwnerAsScriptStruct->StructFlags & STRUCT_NoExport)
				// && !PropertyOwnerAsScriptStruct->GetBoolMetaData(TEXT("BlueprintType"))
				&& ensure(EPropertyAccessOperator::Dot == AccessOperator);
			if (PropertyOwnerAsBPGC && !Context.Dependencies.WillClassBeConverted(PropertyOwnerAsBPGC))
			{
				ensure(EPropertyAccessOperator::None != AccessOperator);
				const FString OperatorStr = (EPropertyAccessOperator::Dot == AccessOperator) ? TEXT("&") : TEXT("");
				const FString ContainerStr = (EPropertyAccessOperator::None == AccessOperator) ? TEXT("this") : FString::Printf(TEXT("%s(%s)"), *OperatorStr, *OuterPath);

				PathToMember = FString::Printf(TEXT("FUnconvertedWrapper__%s(%s).GetRef__%s()"), *FEmitHelper::GetCppName(PropertyOwnerAsBPGC), *ContainerStr
					, *UnicodeToCPPIdentifier(Property->GetName(), false, nullptr));
			}
			else if (bNoexportProperty || Property->HasAnyPropertyFlags(CPF_NativeAccessSpecifierPrivate) || (!bAllowProtected && Property->HasAnyPropertyFlags(CPF_NativeAccessSpecifierProtected)))
			{
				ensure(EPropertyAccessOperator::None != AccessOperator);
				const FString OperatorStr = (EPropertyAccessOperator::Dot == AccessOperator) ? TEXT("&") : TEXT("");
				const FString ContainerStr = (EPropertyAccessOperator::None == AccessOperator) ? TEXT("this") : OuterPath;
				const FString GetPtrStr = bNoexportProperty
					? FEmitHelper::AccessInaccessiblePropertyUsingOffset(Context, Property, ContainerStr, OperatorStr, ArrayIndex)
					: FEmitHelper::AccessInaccessibleProperty(Context, Property, ContainerStr, OperatorStr, ArrayIndex, false);
				PathToMember = Context.GenerateUniqueLocalName();
				Context.AddLine(FString::Printf(TEXT("auto& %s = %s;"), *PathToMember, *GetPtrStr));
			}
			else
			{
				const FString AccessOperatorStr = (EPropertyAccessOperator::None == AccessOperator) ? TEXT("")
					: ((EPropertyAccessOperator::Pointer == AccessOperator) ? TEXT("->") : TEXT("."));
				const bool bStaticArray = (Property->ArrayDim > 1);
				const FString ArrayPost = bStaticArray ? FString::Printf(TEXT("[%d]"), ArrayIndex) : TEXT("");
				PathToMember = FString::Printf(TEXT("%s%s%s%s"), *OuterPath, *AccessOperatorStr, *FEmitHelper::GetCppName(Property), *ArrayPost);
			}
			const uint8* ValuePtr = Property->ContainerPtrToValuePtr<uint8>(DataContainer, ArrayIndex);
			const uint8* DefaultValuePtr = OptionalDefaultDataContainer ? Property->ContainerPtrToValuePtr<uint8>(OptionalDefaultDataContainer, ArrayIndex) : nullptr;
			InnerGenerate(Context, Property, PathToMember, ValuePtr, DefaultValuePtr);
		}
	}
}