I have developed a source filter for perl based on the UFC program for linux, it doesnt appear to have any bugs in it, other than when the script that calls it is run it does nothing. An example of a script that is compiled is below. 
#!/usr/bin/perl
use NWLoader;
6563636060604b6e4b0f45344862271900030a2204456e5e43350272111e4b534f7048
+6f445a0b6643411

[download]

the uncompiled version is: 
 
#!/usr/bin/perl
use NWLoader;

$user_id = $ARGV[0];
$customer_dir = $ARGV[1];
$domain_name = $ARGV[2];
$archive = $ARGV[3];
$newer_option = $ARGV[4];
chdir "$customer_dir/$domain_name";
system "tar czv --exclude='archives' $newer_option *";
exit 0;

[download]

when we try to run this we get nothing, if given the right variables it should create a tar backup file, but it doesnt do anything. the filter consists of a perl module that loads a C filter. The code of the Perl Module is below. 
 
package NWLoader;
require 5.002 ;
require DynaLoader;
require Exporter;
use Carp ;
use strict;
use vars qw($VERSION @ISA @EXPORT) ;

@ISA = qw(Exporter DynaLoader);
@EXPORT = qw( filter_add );
$VERSION = "0.01" ;

sub filter_add
{
   my $obj = 0 ;

    #Did we get a code reference?
   my $coderef = (ref $obj eq 'CODE') ;

    #If the parameter isn't already a reference, make it one.
   $obj = \$obj unless ref $obj ;

   $obj = bless ($obj, (caller)[0]);

    #finish off the installation of the filter in C.
   NWLoader::real_import($obj,(caller)[0],"");
}

sub import
{
filter_add( );
 }

bootstrap NWLoader $VERSION;

1;

__END__

[download]

Now the question is, is there a way to place something in here or another filter after this filter that will during development allow us to see what is actually being passed to the perl compiler?

In reply to Method to test output of Perl Source filter? by aventix

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