Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/vm/choice/BreakGenerator.java @ 28:7be90179bb3b
Provided support for double colon operator used for lamabda expressions. Fixed a bug related to generating names for funcation object classes (by supporting double colon operator, a new stragety needed to generate unique names for function objects. To achive that the bootstrap ids are incorporated into names). Finally modified the method that retrieves the SAM from functional interfaces.
author | nastaran <nastaran.shafiei@gmail.com> |
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date | Thu, 25 Jun 2015 13:20:50 -0700 |
parents | fdc263e5806b |
children |
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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.vm.choice; import gov.nasa.jpf.vm.ChoiceGenerator; import gov.nasa.jpf.vm.ChoiceGeneratorBase; import gov.nasa.jpf.vm.ThreadChoiceGenerator; import gov.nasa.jpf.vm.ThreadInfo; import java.io.PrintWriter; /** * a pseudo CG that is used to break transitions. It can be used to break and * just reschedule the current thread, or to indicate an end state * (e.g. for System.exit()) */ public class BreakGenerator extends ChoiceGeneratorBase<ThreadInfo> implements ThreadChoiceGenerator { protected ThreadInfo ti; protected int state = -1; protected boolean isTerminator; public BreakGenerator (String id, ThreadInfo ti, boolean isTerminator) { super(id); this.ti = ti; this.isTerminator = isTerminator; } @Override public ThreadInfo getNextChoice () { assert !isTerminator : "illegal operation on terminal BreakGenerator"; return (state == 0) ? ti : null; } @Override public ThreadInfo getChoice (int idx){ if (idx == 0){ return ti; } else { throw new IllegalArgumentException("choice index out of range: " + idx); } } @Override public void printOn (PrintWriter pw) { pw.println("BreakGenerator {" + ti.getName() + "}"); } @Override public void advance () { assert !isTerminator : "illegal operation on terminal BreakGenerator"; state++; } @Override public int getProcessedNumberOfChoices () { return (state >= 0) ? 1 : 0; } @Override public int getTotalNumberOfChoices () { return 1; } @Override public boolean hasMoreChoices () { if (isTerminator){ return false; } return (state < 0); } @Override public void reset () { state = -1; isDone = false; } @Override public boolean contains (ThreadInfo ti){ return this.ti == ti; } @Override public Class<ThreadInfo> getChoiceType() { return ThreadInfo.class; } @Override public ChoiceGenerator<ThreadInfo> randomize() { return this; } @Override public boolean isSchedulingPoint(){ return true; // that's the whole point of having a BreakGenerator } }