Method GetUnionInnerType

IDEHelper/Compiler/BfResolvedTypeUtils.cpp:1936–2047

}

BfType* BfTypeInstance::GetUnionInnerType(bool* wantSplat)
{
	if (wantSplat != NULL)
		*wantSplat = false;

	if (!mIsUnion)
		return NULL;

	BfTypeState typeState(this, mContext->mCurTypeState);
	typeState.mPopulateType = BfPopulateType_Data;
	SetAndRestoreValue<BfTypeState*> prevTypeState(mContext->mCurTypeState, &typeState);

	int unionSize = 0;
	BfType* unionInnerType = NULL;
	bool makeRaw = false;
	for (int fieldIdx = 0; fieldIdx < (int)mFieldInstances.size(); fieldIdx++)
	{
		auto fieldInstance = (BfFieldInstance*)&mFieldInstances[fieldIdx];
		auto fieldDef = fieldInstance->GetFieldDef();

		BfType* checkInnerType = NULL;

		if (fieldDef == NULL)
			continue;

		if ((fieldDef->mIsConst) && (fieldInstance->mIsEnumPayloadCase))
		{
			BF_ASSERT(mIsUnion);
			checkInnerType = fieldInstance->mResolvedType;
		}

		if (fieldInstance->mDataIdx >= 0)
		{
			checkInnerType = fieldInstance->mResolvedType;
		}

		if (checkInnerType != NULL)
		{
			SetAndRestoreValue<BfFieldDef*> prevTypeRef(mContext->mCurTypeState->mCurFieldDef, fieldDef);

			if (checkInnerType->IsDataIncomplete())
				mModule->PopulateType(checkInnerType, checkInnerType->IsValueType() ? BfPopulateType_Data : BfPopulateType_Declaration);
			if (checkInnerType->mSize > unionSize)
				unionSize = checkInnerType->mSize;

			if ((!checkInnerType->IsValuelessType()) && (checkInnerType != unionInnerType))
			{
				if (unionInnerType == NULL)
				{
					unionInnerType = checkInnerType;
				}
				else
				{
					if (checkInnerType->mSize > unionInnerType->mSize)
					{
						bool needsMemberCasting = false;
						if (!mModule->AreSplatsCompatible(checkInnerType, unionInnerType, &needsMemberCasting))
						{