Error while redefining subsref for object, if there are methods with no output arguments

I am trying to redefine brackets operator for my class, as written here: Code Patterns for subsref and subsasgn Methods

So, for all other subscripts except of '()' I should call buil-it function:

 varargout = subsref(obj,s)
     if ~strcmp(S(1).type, '()')
         varargout = {builtin('subsref',obj,S)};
     else
         ... % do something else
     end
 end

But when I call some methods with dot subscript, which do not return any arguments,

 myObject.push_back(3);

My builtin function returns no value for varargout and throws an error: "Too many output arguments."

Next, I have found that I should redefine numArgumentsFromSubscript method. But the problem is, when I call a method that have no return arguments, it does not call numArgumentsFromSubscript.

[Victor]

UPD: Already solved it by adding 'obj' output to every methods, even to subasgn:

 function obj = subsasgn(obj,S,inData)

instead of

 function subsasgn(obj,S,inData)

and so on.