You could probably get what you want by using a coderef in your @INC array.
#!/usr/bin/env perl -w
use strict;
use warnings 'all';
BEGIN {
push @INC, sub {
shift;
my $classfile = shift;
if( $classfile eq 'My/Missing/Module.pm' )
{
(my $classname = $classfile) =~ s/\//::/g;
$classname =~ s/\.pm$//;
my $code = <<"CODE";
package $classname;
sub hello {
return qq{Hello, \@_!\\n};
};
1;
CODE
# You have to return an open, readable filehandle:
open my $ifh, '<', \$code;
return $ifh;
}
else
{
return undef;
}# end if()
};
}
# Load up a non-existant module:
require My::Missing::Module;
print My::Missing::Module::hello("Studly");
# Output: "Hello, Studly!"
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