std::shared_ptr<ExpressionNode> DivisionNode::evaluate(Environment* e)
{
std::shared_ptr<ExpressionNode> left = a->evaluate(e);
std::shared_ptr<ExpressionNode> right = b->evaluate(e);
ConstantNode* cLeft = dynamic_cast<ConstantNode*>(&*left);
ConstantNode* cRight = dynamic_cast<ConstantNode*>(&*right);
if (cLeft != 0 && cRight != 0) {
IntegerNode* iLeft = dynamic_cast<IntegerNode*>(cLeft);
IntegerNode* iRight = dynamic_cast<IntegerNode*>(cRight);
RealNode* rLeft = dynamic_cast<RealNode*>(cLeft);
RealNode* rRight = dynamic_cast<RealNode*>(cRight);
if (iLeft != 0 && iRight != 0) {
return shared_from_this();
}
if (iLeft != 0 && rRight != 0) {
return std::make_shared<RealNode>
(iLeft->getValue() / rRight->getValue());
}
if (rLeft != 0 && iRight != 0) {
return std::make_shared<RealNode>
(rLeft->getValue() / iRight->getValue());
}
if (rLeft != 0 && rRight != 0) {
return std::make_shared<RealNode>
(rLeft->getValue() / rRight->getValue());
}
return 0;
} else {
return std::make_shared<DivisionNode>(left, right);
}
}
std::shared_ptr<ExpressionNode> MultiplicationNode::evaluate(Environment* e)
{
std::shared_ptr<ExpressionNode> left = a->evaluate(e);
std::shared_ptr<ExpressionNode> right = b->evaluate(e);
ConstantNode* cLeft = dynamic_cast<ConstantNode*>(&*left);
ConstantNode* cRight = dynamic_cast<ConstantNode*>(&*right);
if (cLeft != 0 && cRight != 0) {
IntegerNode* iLeft = dynamic_cast<IntegerNode*>(cLeft);
IntegerNode* iRight = dynamic_cast<IntegerNode*>(cRight);
RealNode* rLeft = dynamic_cast<RealNode*>(cLeft);
RealNode* rRight = dynamic_cast<RealNode*>(cRight);
if (iLeft != 0 && iRight != 0) {
return std::make_shared<IntegerNode>
(iLeft->getValue() * iRight->getValue());
}
if (iLeft != 0 && rRight != 0) {
return std::make_shared<RealNode>
(iLeft->getValue() * rRight->getValue());
}
if (rLeft != 0 && iRight != 0) {
return std::make_shared<RealNode>
(rLeft->getValue() * iRight->getValue());
}
if (rLeft != 0 && rRight != 0) {
return std::make_shared<RealNode>
(rLeft->getValue() * rRight->getValue());
}
return 0;
} else {
IntegerNode* iLeft = dynamic_cast<IntegerNode*>(cLeft);
IntegerNode* iRight = dynamic_cast<IntegerNode*>(cRight);
if (iLeft != 0 && iLeft->getValue() == 1) {
return right;
}
if (iLeft != 0 && iLeft->getValue() == 0) {
return std::make_shared<IntegerNode>(0);
}
if (iRight != 0 && iRight->getValue() == 1) {
return left;
}
if (iRight != 0 && iRight->getValue() == 0) {
return std::make_shared<IntegerNode>(0);
}
return std::make_shared<MultiplicationNode>(left, right);
}
}
/**
* Transform a RealNode to a XML node.
*
* @param node A settings tree node representing a real node.
* @param parent The parent node of the XML document.
*/
Void XmlSettingsTree::settingsTreeToXml( RealNode& node, TiXmlNode& parent ) {
TiXmlElement* element = new TiXmlElement( XMLSETTINGSTREE_REAL_ELEMENT );
TiXmlText* text = new TiXmlText( TextUtils::doubleToString( node.getValue(), 14 ).c_str() );
element->LinkEndChild( text );
parent.LinkEndChild( element );
}
