/******************************************************************************* * Copyright (c) 2009-2013 CWI * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * * Jurgen J. Vinju - Jurgen.Vinju@cwi.nl - CWI * * Emilie Balland - (CWI) *******************************************************************************/ package org.rascalmpl.interpreter.matching; import org.rascalmpl.interpreter.IEvaluatorContext; import org.rascalmpl.value.type.TypeFactory; public abstract class AbstractBooleanResult implements IBooleanResult { protected boolean initialized = false; protected boolean hasNext = true; protected final TypeFactory tf = TypeFactory.getInstance(); protected final IEvaluatorContext ctx; public AbstractBooleanResult(IEvaluatorContext ctx){ super(); this.ctx = ctx; } public void init() { this.initialized = true; this.hasNext = true; } public boolean hasNext() { return initialized && hasNext; } abstract public boolean next(); }