Function AddNegateNode

NULLC/Callbacks.cpp:785–811

Function that creates unary operation node that changes sign of value

// Function that creates unary operation node that changes sign of value
void AddNegateNode(const char* pos)
{
	CodeInfo::lastKnownStartPos = pos;
	if(AddFunctionCallNode(pos, "-", 1, true))
		return;

	// If the last node is a number, we can just change sign of constant
	if(CodeInfo::nodeList.back()->nodeType == typeNodeNumber && CodeInfo::nodeList.back()->typeInfo != typeBool)
	{
		TypeInfo *aType = CodeInfo::nodeList.back()->typeInfo;
		NodeZeroOP* Rd = NULL;
		if(aType == typeDouble || aType == typeFloat)
			Rd = new NodeNumber(-static_cast<NodeNumber*>(CodeInfo::nodeList.back())->GetDouble(), aType);
		else if(aType == typeLong)
			Rd = new NodeNumber(-static_cast<NodeNumber*>(CodeInfo::nodeList.back())->GetLong(), aType);
		else if(aType == typeInt || aType == typeShort || aType == typeChar)
			Rd = new NodeNumber(-static_cast<NodeNumber*>(CodeInfo::nodeList.back())->GetInteger(), aType);
		else
			ThrowError(pos, "addNegNode() ERROR: unknown type %s", aType->name);

		CodeInfo::nodeList.pop_back();
		CodeInfo::nodeList.push_back(Rd);
	}else{
		// Otherwise, just create node
		CodeInfo::nodeList.push_back(new NodeUnaryOp(cmdNeg));
	}
}

// Function that creates unary operation node for logical NOT
void AddLogNotNode(const char* pos)