Re: Procedural and object oriented interface in Perl/XS

[dave_the_m]

Perl doesn't make any distinction between a function call and a method call (except that which function to call is resolved at run-time). $x->foo($y,$z) just calls foo($x,$y,$z),and Class->foo($y,$z) just calls foo('Class',$y,$z).

So if you want your function (be it perl or XS code) to tell the difference, you need to make the function be called in a slightly different way to make a distinction

Dave.

[stewa02]

Well the difference is: the method call gives the instance of the object as the only argument, the function call a number (For cos: $instance->cos; or MyModule::Math::cos(42);) and thats what I try to do with sv_isobject(). But this dows not work and I don't see my error.

[dave_the_m]

But this dows not work

Can you be much more specific please. In which way does it not work? Under what circumstances does it not work? Have you single-stepped that XS function under a debuggger? At what point does the behaviour deviate from what you expect? Etc.

Dave.