@Override
protected void popFromFrame(ExecutionStackFrame frame) {
if (currentFrame.invocationDepth == 0) {
frames.remove(frames.size() - 1);
if (frames.isEmpty()) {
currentFrame = null;
ExecutionPath.removeExecutionContext(Key.INSTANCE);
} else {
currentFrame = frames.get(frames.size() - 1);
}
} else {
currentFrame.invocationDepth--;
}
}
void changeMode(Mode newMode) {
if (currentFrame == null) {
if (newMode == DEFAULT_MODE) {
return;
}
ExecutionPath.installExecutionContext(Key.INSTANCE, this);
} else {
if (currentFrame.mode == newMode) {
return;
}
if (currentFrame.invocationDepth == 0) {
currentFrame.mode = newMode;
return;
}
}
Frame frame = new Frame(newMode);
frames.add(frame);
currentFrame = frame;
}