ControlOperationEvaluator.java

package com.drawbridge.jsengine.ast;

import java.util.LinkedList;

import com.drawbridge.jsengine.Scope;
import com.drawbridge.jsengine.jsobjects.JSType;
import com.google.caja.parser.js.ControlOperation;
import com.google.caja.parser.js.OperatorType;

public class ControlOperationEvaluator extends Evaluator
{
	OperatorType	opType;
	Evaluator		result1;
	Evaluator		result2;

	// Child 0 - if statement
	// Child 1 - result true
	// Child 2 - result false

	public ControlOperationEvaluator(Evaluator parent, Scope scope, ControlOperation controlOperation) {
		super(parent, scope, controlOperation.getFilePosition());
		opType = controlOperation.getOperator().getType();
		// May have to add new scope here
		mChildren.add(Evaluator.getEvaluator(this, scope, controlOperation.children().get(0)));
		mChildren.add(Evaluator.getEvaluator(this, scope, controlOperation.children().get(1)));
		mChildren.add(Evaluator.getEvaluator(this, scope, controlOperation.children().get(2)));
	}

	@Override
	public JSType evaluate() throws EvaluatorException
	{
		throw new EvaluatorException("Unsupported Functionality:" + "Control Operation");
		// JSBoolean conditional = (JSBoolean) mChildren.get(0).evaluate();
		// if(conditional.mVal)
		// return mChildren.get(1).evaluate();
		// else
		// return mChildren.get(2).evaluate();
	}

	@Override
	public LinkedList<com.drawbridge.vl.blocks.Block> getBlocks()
	{
		return new LinkedList<com.drawbridge.vl.blocks.Block>();
	}

	@Override
	public boolean compare(Evaluator e)
	{
		if (!e.getClass().equals(getClass()))
			return false;

		if (mChildren.size() != e.mChildren.size())
			return false;

		for (int i = 0; i < mChildren.size(); i++)
		{
			if (!mChildren.get(i).compare(e.mChildren.get(i)))
				return false;
		}

		if (e.getFilePosition().equals(getFilePosition()))
			return true;
		else
			return false;
	}

}