//
// Copyright (C) 2010 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;
import cmu.conditional.Conditional;
import java.util.function.Function;
import cmu.conditional.One;
import de.fosd.typechef.featureexpr.FeatureExpr;
import gov.nasa.jpf.JPFException;
/**
* fieldinfo for slots holding booleans
*/
public class BooleanFieldInfo extends SingleSlotFieldInfo {
boolean init=false;
public BooleanFieldInfo (String name, int modifiers) {
super(name, "Z", modifiers);
}
public void setConstantValue(Object constValue){
if (constValue instanceof Integer){
cv = constValue;
init = ((Integer)constValue).intValue() == 1;
} else {
throw new JPFException("illegal boolean ConstValue=" + constValue);
}
}
public void initialize (FeatureExpr ctx, ElementInfo ei, ThreadInfo ti) {
ei.getFields().setBooleanValue(ctx, storageOffset, One.valueOf(init));
}
public boolean isBooleanField() {
return true;
}
public Object getValueObject (Fields f){
Conditional<Integer> i = f.getIntValue(storageOffset);
return i.mapr(new Function<Integer, Conditional<Boolean>>() {
@Override
public Conditional<Boolean> apply(Integer i) {
return One.valueOf(Boolean.valueOf(i != 0));
}
});
}
public String valueToString (Fields f) {
boolean b = f.getBooleanValue(storageOffset).getValue();
return Boolean.toString(b);
}
}