//
// Copyright (C) 2007 United States Government as represented by the
// Administrator of the National Aeronautics and Space Administration
// (NASA). All Rights Reserved.
//
// This software is distributed under the NASA Open Source Agreement
// (NOSA), version 1.3. The NOSA has been approved by the Open Source
// Initiative. See the file NOSA-1.3-JPF at the top of the distribution
// directory tree for the complete NOSA document.
//
// THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
// KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
// LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
// SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
// A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
// THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
// DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//
package gov.nasa.jpf.vm.choice;
import java.io.PrintWriter;
import java.util.List;
import java.util.ListIterator;
import gov.nasa.jpf.util.Invocation;
import gov.nasa.jpf.vm.ChoiceGenerator;
import gov.nasa.jpf.vm.ChoiceGeneratorBase;
/**
* ChoiceGenerator that represents method calls
*/
public class InvocationCG extends ChoiceGeneratorBase<Invocation> {
protected List<Invocation> invokes;
protected Invocation cur;
protected ListIterator<Invocation> it;
public InvocationCG (String id, List<Invocation> invokes){
super(id);
this.invokes = invokes;
it = invokes.listIterator();
}
@Override
public void advance () {
cur = it.next();
}
@Override
public Class<Invocation> getChoiceType () {
return Invocation.class;
}
@Override
public Invocation getNextChoice () {
return cur;
}
@Override
public int getProcessedNumberOfChoices () {
return it.nextIndex();
}
@Override
public int getTotalNumberOfChoices () {
return invokes.size();
}
@Override
public boolean hasMoreChoices () {
return it.hasNext();
}
@Override
public ChoiceGenerator<Invocation> randomize () {
// <2do>
return this;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder(getClass().getName());
sb.append(" [");
int n = invokes.size();
for (int i=0; i<n; i++) {
if (i > 0) sb.append(',');
Invocation inv = invokes.get(i);
if (inv == cur) {
sb.append(MARKER);
}
sb.append(inv);
}
sb.append(']');
return sb.toString();
}
public void printOn (PrintWriter pw) {
pw.print(toString());
}
@Override
public void reset () {
cur = null;
it = invokes.listIterator();
isDone = false;
}
}