(I've never written XS, so take me with a grain of salt.)

When dealing with this kind of thing in C, we'd use a macro #define to make our lives easier. So, I could see something like: 

#define CALL_COUNT_ITEMS_IF( type ) \
if (sv_derived_from(ST(0), type)) { \
      RETVAL=THIS->countItemsIn( \
        *(type *) SvIV((SV*)SvRV(ST(0))) \
      ); \
    }

int
MyClass::countItemsIn (...)
  CODE:
    CALL_COUNT_ITEMS_IF( 'MyList' );
    CALL_COUNT_ITEMS_IF( 'MyHash' );
  OUTPUT:
    RETVAL

[download]

Again, I have no idea if XS provides for a pre-processor or not. Hope this helps!

------
We are the carpenters and bricklayers of the Information Age.

Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

I shouldn't have to say this, but any code, unless otherwise stated, is untested

In reply to Re: Terrible Trouble With Typemaps (XS Question) by dragonchild
in thread Terrible Trouble With Typemaps (XS Question) by Molt

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