protected StackElementLength stackElementLength;
public DecodedFieldOp(FieldOpcode fo, Context context, int index) {
super(fo, context, index);
String descriptor = context.behavior.getMethodInfo().getConstPool().getFieldrefType(getMethodRefIndex());
StackElementLength sel = ONE;
if(Descriptor.dataSize(descriptor) == 2)
sel = DOUBLE;
this.stackElementLength = sel;
this.descriptor = descriptor;
this.load = fo.getCode() == Opcode.GETFIELD || fo.getCode() == Opcode.GETSTATIC;