Method CastToValue

IDEHelper/Compiler/BfModuleTypeUtils.cpp:13440–15066

}

BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfType* toType, BfCastFlags castFlags, BfCastResultFlags* resultFlags)
{
	bool silentFail = ((castFlags & BfCastFlags_SilentFail) != 0);
	bool explicitCast = (castFlags & BfCastFlags_Explicit) != 0;
	bool ignoreErrors = mIgnoreErrors || ((castFlags & BfCastFlags_SilentFail) != 0);
	bool ignoreWrites = mBfIRBuilder->mIgnoreWrites;

	if (typedVal.mType == toType)
	{
		if (resultFlags != NULL)
		{
			if (typedVal.IsAddr())
				*resultFlags = (BfCastResultFlags)(*resultFlags | BfCastResultFlags_IsAddr);
			if (typedVal.mKind == BfTypedValueKind_TempAddr)
				*resultFlags = (BfCastResultFlags)(*resultFlags | BfCastResultFlags_IsTemp);
		}
		else if (typedVal.IsAddr())
			typedVal = LoadValue(typedVal);

		return typedVal.mValue;
	}

	BF_ASSERT(typedVal.mType->mContext == mContext);
	BF_ASSERT(toType->mContext == mContext);

	if ((typedVal.IsAddr()) && (!typedVal.mType->IsValueType()))
		typedVal = LoadValue(typedVal);

	//BF_ASSERT(!typedVal.IsAddr() || typedVal.mType->IsGenericParam() || typedVal.mType->IsValueType());

	// Ref X to Ref Y, X* to Y*
	{
		bool checkUnderlying = false;
		bool isRef = false;

		if (((typedVal.mType->IsRef()) && (toType->IsRef())))
		{
			isRef = true;
			auto fromRefType = (BfRefType*)typedVal.mType;
			auto toRefType = (BfRefType*)toType;
			if (fromRefType->mRefKind == toRefType->mRefKind)
				checkUnderlying = true;
			else if ((fromRefType->mRefKind == BfRefType::RefKind_Ref) && (toRefType->mRefKind == BfRefType::RefKind_Mut))
				checkUnderlying = true; // Allow a ref-to-mut implicit conversion
		}

		if ((typedVal.mType->IsPointer()) && (toType->IsPointer()))
			checkUnderlying = true;

		if (checkUnderlying)
		{
			auto fromInner = typedVal.mType->GetUnderlyingType();
			auto toInner = toType->GetUnderlyingType();

			if (fromInner == toInner)
			{
				return typedVal.mValue;
			}