ConditionalEvaluator.java

package com.drawbridge.jsengine.ast;

import java.util.ArrayList;
import java.util.LinkedList;

import com.drawbridge.jsengine.JsEngine;
import com.drawbridge.jsengine.Scope;
import com.drawbridge.jsengine.jsobjects.ExecutionException;
import com.drawbridge.jsengine.jsobjects.JSBoolean;
import com.drawbridge.jsengine.jsobjects.JSType;
import com.google.caja.parser.js.AbstractStatement;
import com.google.caja.parser.js.Conditional;

//TODO Finish implementing conditionals
public class ConditionalEvaluator extends Evaluator
{
	ArrayList<Evaluator> evals = new ArrayList<Evaluator>();
	ArrayList<AbstractStatement> ops = new ArrayList<AbstractStatement>();

	
	Scope mNewScope;
	Conditional mConditional;
	
	
	public ConditionalEvaluator(Evaluator parent, Scope scope, Conditional conditional) {
		super(parent,scope, conditional.getFilePosition());
		mConditional = conditional;
		// First statement is the if statement
		mChildren.add(Evaluator.getEvaluator(this, scope, conditional.children().get(0)));
		
		// Everything else is executable if that's true
		mNewScope = new Scope(JsEngine.getInstance(), scope);
		scope.addChild(mNewScope);
		for(int i = 1; i < conditional.children().size(); i++){
			ops.add((AbstractStatement) conditional.children().get(i));
			Evaluator eval = Evaluator.getEvaluator(this, mNewScope, conditional.children().get(i));
			evals.add(eval);
		}
	}

	@Override
	public JSType evaluate() throws EvaluatorException, ExecutionException
	{
		JSBoolean result = (JSBoolean) mChildren.get(0).evaluate();
		if(result.mVal){
			for(int i = 0; i < evals.size(); i++){
				evals.get(i).evaluate();
			}
		}
		return null;
	}

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

}