docs: @Override
      public final ParserActionSet getActionSet(int currentState,
  	    Construction construction) {
  	if (construction == null) {
  	    return ParserActionSet.getErrorSet();
  	}
  	Map<Construction, ParserActionSet> actions = table.get(currentState);
  	if (actions == null) {
  	    return ParserActionSet.getErrorSet();
  	}
  	ParserActionSet set = new ParserActionSet();
  	addExactActions(construction, set, actions);
  	addNonExcactActions(construction, set, actions);
  	return set;
      }