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

/*
 * 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()
{
	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);
		}
	else if(oper == "&&")
		{
			so = SenchaObject(left.is_true() && right.is_true());
		}
	else if(oper == "||")
			{
				so = SenchaObject(left.is_true() || right.is_true());
			}
	return so;
}

BasicExpression::BasicExpression() : children_set(false){
	this->type= "BasicExpression";
}

BasicExpression::~BasicExpression() {

}

void BasicExpression::accept(Visitor * visitor)
{
	visitor->visit(this);
}