aminya / dispatch.m Goto Github PK

>> foo(true,2)
Index exceeds the number of array elements (1).

Error in dispatch>isa_ (line 73)
        varisa(i) = isa2(var{i},type{i});

Error in dispatch>ismethod (line 42)
        out = isa_(var, numOrType);

Error in dispatch (line 24)
        if ismethod(var, methodTable{i,2})

Error in foo (line 3)
    out = dispatch(varargin,...

Though it works if I remove the dispatch to the "Person" class in the methodTable. I believe this happens because of the effective weak-typed use of numOrType in ismethod.

On a side note I think you probably could enable multiple outputs by just making use of varargout and collecting from the specialized implementation everything as [varargout{1:nargout}]. This was the initial patch I was targeting, but the fundamental design issue (in my view) with collision between dispatch on number of (numeric-only) and on non-numeric types has made me desist. Nevertheless I find the idea of building an "julia-like" ergonomic interface for multiple dispatch via isa quite interesting, I might return on this when I have time: matlab has all the needed functionality for that, just a painful API. Thanks for the idea :)