How to use

getLong

method

in

com.oracle.truffle.api.frame.VirtualFrame

@Specialization(rewriteOn = FrameSlotTypeException.class)
protected long readLong(VirtualFrame virtualFrame)
    throws FrameSlotTypeException{
  return virtualFrame.getLong(getSlot());
}

@Specialization(rewriteOn = FrameSlotTypeException.class)
protected long readLong(VirtualFrame frame) throws FrameSlotTypeException {
  return frame.getLong(getSlot());
}

@Override
protected void onReturnValue(VirtualFrame frame, Object result) {
  long startTime;
  Counter parentCounter;
  try {
    startTime = frame.getLong(timeStartedSlot);
    parentCounter = (Counter) frame.getObject(parentCounterSlot);
  } catch (FrameSlotTypeException e) {
    throw new AssertionError();
  }
  long timeNano = System.nanoTime() - startTime;
  if (CompilerDirectives.inInterpreter()) {
    counter.interpretedTotalTime += timeNano;
  } else {
    counter.compiledTotalTime += timeNano;
  }
  // the condition if parentCounter is usually only for a root method null
  // after that it is always set. So it makes sense to speculate.
  if (parentNotNullProfile.profile(parentCounter != null)) {
    // do not speculate on parentCounter.compiled condition very likely to invalidate
    if (parentCounter.compiled) {
      parentCounter.compiledChildTime += timeNano;
    } else {
      parentCounter.interpretedChildTime += timeNano;
    }
  }
  profiler.activeCounter = parentCounter;
}