fart/parser/nodes.cc

#include <stdlib.h>

#include <vector>
#include <iostream>

#include "nodes.h"

using namespace std;

void Node::addChildren(NodeRef other)
{
    if (other.isNull())
        return;

    for (vector<NodeRef>::const_iterator it = other->m_children.begin();
         it != other->m_children.end();
         it++)
    {
        addChild(*it);
    }
}

Node::~Node()
{
}

double BinOpNode::getNumber()
{
    double o = one->getNumber();
    double t = two->getNumber();
    switch (m_op)
    {
        case '*':
            return o * t;
        case '/':
            return o / t;
        case '+':
            return o + t;
        case '-':
            return o - t;
        default:
            cerr << "Error: BinOpNode created with op '" << m_op << "'" << endl;
            exit(-3);
    }
}

int BoolExpressionNode::getInteger()
{
    double o, t;
    if (m_op != '!')
    {
        o = one->getNumber();
        t = two->getNumber();
    }
    switch (m_op)
    {
        case '<':
            return o < t;
        case '>':
            return o > t;
        case '=':
            return o == t;
        case 'n':
            return o != t;
        case '!':
            return ! one->getInteger();
        case 'T':
            return 1;
    }
    return 0;
}