//
// Copyright (C) 2006 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 gov.nasa.jpf.Config;
/**
* @author cartho
*
* choose from a set of values provided in configuration as
* xxx.class = IntChoiceFromSet
* xxx.values = {1, 2, 3, 400}
* where "xxx" is the choice id.
*
* choices can then made using: getInt("xxx");
*/
public class IntChoiceFromSet extends IntChoiceFromList {
/**
* @param conf JPF configuration object
* @param id name used in choice config
*/
public IntChoiceFromSet(Config conf, String id) {
super(conf, id);
removeDuplicates();
}
/* Remove duplicate values; currently implemented as iteration
* on array to avoid heavyweight TreeSet */
private void removeDuplicates() {
int len = values.length;
for (int i = 0; i < len; i++) {
int j = i + 1;
while (j < len) {
if (values[i] - values[j] == 0) { // strange comparison to avoid unboxing
values[j] = values[len - 1];
len--;
// don't increment j as new element has been placed there and needs to be re-tested
} else {
j++;
}
}
}
if (len < values.length) {
Integer[] uniqVals = new Integer[len];
System.arraycopy(values, 0, uniqVals, 0, len);
values = uniqVals;
}
}
public IntChoiceFromSet(String id, int... val){
super(id, val);
removeDuplicates();
count = -1;
}
/** super constructor for subclasses that want to configure themselves
*
* @param id name used in choice config
*/
protected IntChoiceFromSet(String id){
super(id);
}
}