//
// 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.jvm.bytecode;
import cmu.conditional.Conditional;
import java.util.function.Function;
import cmu.conditional.One;
import de.fosd.typechef.featureexpr.FeatureExpr;
import gov.nasa.jpf.vm.ArrayIndexOutOfBoundsExecutiveException;
import gov.nasa.jpf.vm.BooleanArrayFields;
import gov.nasa.jpf.vm.ByteArrayFields;
import gov.nasa.jpf.vm.ElementInfo;
import gov.nasa.jpf.vm.Fields;
import gov.nasa.jpf.vm.StackFrame;
/**
* Store into byte or boolean array
* ..., arrayref, index, value => ...
*/
public class BASTORE extends ArrayStoreInstruction {
Conditional<Byte> value;
protected void popValue(FeatureExpr ctx, StackFrame frame){
value = frame.pop(ctx).mapr(new Function<Integer, Conditional<Byte>>() {
@Override
public Conditional<Byte> apply(Integer y) {
return One.valueOf(y.byteValue());
}
});
}
protected void setField (FeatureExpr ctx, ElementInfo ei, int index) throws ArrayIndexOutOfBoundsExecutiveException {
ei.checkArrayBounds(ctx, index);
Fields f = ei.getFields();
if (f instanceof ByteArrayFields){
ei.setByteElement(ctx, index, value);
} else if (f instanceof BooleanArrayFields){
ei.setBooleanElement(ctx, index, value.mapr(new Function<Byte, Conditional<Boolean>>() {
@Override
public Conditional<Boolean> apply(Byte v) {
return v != 0 ? One.TRUE : One.FALSE;
}
}));
}
}
public int getByteCode () {
return 0x54;
}
public void accept(InstructionVisitor insVisitor) {
insVisitor.visit(this);
}
public byte getValue(){
return value.getValue();
}
}