BooleanLiteralEvaluator.java

package com.drawbridge.jsengine.ast;

import java.util.LinkedList;

import com.drawbridge.jsengine.Scope;
import com.drawbridge.jsengine.jsobjects.JSBoolean;
import com.drawbridge.jsengine.jsobjects.JSType;
import com.drawbridge.vl.blocks.BlockPrimitive;
import com.google.caja.parser.js.BooleanLiteral;

public class BooleanLiteralEvaluator extends Evaluator
{

	boolean	value;

	public BooleanLiteralEvaluator(Evaluator parent, Scope scope, BooleanLiteral bLiteral) {
		super(parent, scope, bLiteral.getFilePosition());
		value = bLiteral.getValue();
	}

	@Override
	public JSType evaluate() throws EvaluatorException
	{
		return new JSBoolean(value);
	}

	@Override
	public LinkedList<com.drawbridge.vl.blocks.Block> getBlocks()
	{
		LinkedList<com.drawbridge.vl.blocks.Block> result = new LinkedList<com.drawbridge.vl.blocks.Block>();
		result.add(new BlockPrimitive(getFilePosition(), this, value ? "true" : "false"));
		return result;
	}

	@Override
	public boolean compare(Evaluator e)
	{
		if (!e.getClass().equals(getClass()))
			return false;
		BooleanLiteralEvaluator ble = (BooleanLiteralEvaluator) e;
		if (value == ble.value && e.getFilePosition().equals(getFilePosition()))
			return true;
		else
			return false;
	}

}