sencha-lang/Sencha-lang/AST/BasicExpression.cpp

135 lines
2.3 KiB
C++

/*
* BasicExpression.cpp
*
* Created on: Dec 5, 2012
* Author: attero
*/
#include "BasicExpression.h"
void BasicExpression::set_operator(std::string op)
{
this->oper = op;
}
void BasicExpression::set_left_operand(ASTNode * left)
{
if(!this->children_set)
{
children.push_back(left);
}
else
{
this->children[0] = left;
}
if(children.size() == 2)
children_set = true;
}
void BasicExpression::set_right_operand(ASTNode * right)
{
if(!this->children_set)
{
children.push_back(right);
}
else
{
this->children[1] = right;
}
if(children.size() == 2)
children_set = true;
}
void BasicExpression::execute()
{
//children[0]->execute();
//children[1]->execute();
std::cout << evaluate().repr() << std::endl;
}
void BasicExpression::execute_quietly()
{
evaluate();
}
SenchaObject BasicExpression::evaluate()
{
//TODO refactor it ;)
SenchaObject left = static_cast<ASTExpression *>(children[0])->evaluate();
SenchaObject right = static_cast<ASTExpression *>(children[1])->evaluate();
SenchaObject so;
if(oper == "+")
{
so = SenchaObject(left + right);
}
else if(oper == "-")
{
so = SenchaObject(left - right);
}
else if(oper == "*")
{
so = SenchaObject(left * right);
}
else if(oper == "/")
{
so = SenchaObject(left / right);
}
else if(oper == "=")
{
so = SenchaObject(right);
}
else if(oper == "==")
{
so = SenchaObject(right == left);
}
else if(oper == "!=")
{
so = SenchaObject(right != left);
}
else if(oper == ">")
{
so = SenchaObject(left > right);
}
else if(oper == ">=")
{
so = SenchaObject(left >= right);
}
else if(oper == "<=")
{
so = SenchaObject(left <= right);
}
else if(oper == "<")
{
so = SenchaObject(left < right);
}
return so;
}
BasicExpression::BasicExpression(ASTNode * parent) : children_set(false){
this->parent = parent;
this->type= "BasicExpression";
}
BasicExpression::~BasicExpression() {
}
void BasicExpression::accept(Visitor * visitor)
{
visitor->visit(this);
}
std::string BasicExpression::debug()
{
std::string debug_note = "Basic expression:\n";
debug_note += "left operand: \n";
debug_note += this->children[0]->debug();
debug_note += "\nright operand:\n" + this->children[1]->debug();
debug_note += "\nOperator: " + this->oper +"\n###\n";
return debug_note;
}