Re: Is there a $xxx to specify the current function name ?

David Benjamin-bdavid02 <Benjamin.David@xxxxxxxxxxxx> writes:

> I would like to use a $xxx to access the function/method name that this type 
> map is used in.
> 
> IF this were called $name I could use this as follows:
> 
> 
> %typemap(in) const uString & {
> 
>   printf ("Currently in %s ", uString ($name) );
> 
> }
> 
> This would be used for diagnostic purposes primarily.
> I could not find such a feature. Does this exist ?

>From Typemaps.html:

  8.5.1 "in" typemap
  The "in" typemap is used to convert function arguments from the target 
language to C. For example:
  
  %typemap(in) int {
     $1 = PyInt_AsLong($input);
  }
  
  The following special variables are available:
  
  $input            - Input object holding value to be converted.
  $symname          - Name of function/method being wrapped

However, this doesn't really do what I expected it to do. For example,
the following typemap:

  %typemap(in) XMLCh * {
    if (SvPOK($input)||SvIOK($input)||SvNOK($input)) {
      $1 = Perl2XMLString($input);
    } else {
      croak("Type error in argument 2 of $symname, Expected perl-string.");
      XSRETURN(1);
    }
  }

produces this in the output file:

     if (SvPOK(ST(2))||SvIOK(ST(2))||SvNOK(ST(2))) {
         arg3 = Perl2XMLString(ST(2));
     } else {
         croak("Type error in argument 2 of XMLErrorReporter_error, Expected 
perl-string.");
         XSRETURN(1);
     }

I would have liked $symname to read XMLErrorReporter::error, since
that's the method I'm wrapping, and not XMLErrorReporter_error. This
creates a fair amount of confusion when users see this type of error.

Even better, I'd like it to be fully qualified with the module
namespace, so XML::Xerces::XMLErrorReporter::error ... but I digress.

Or, perhaps one of the typemap gurus will (hopefully) show why I'm silly...

Cheers,
jas.
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