I can see from my original node that I (once again) was not terribly clear. The intent of this idea was to ensure that I had a general purpose module that I could point to any namespace and it would recursively travel through the directories (via File::Find or File::Find::Rule) and prepare those subroutines as I outlined above. Thus, I wouldn't have to change code in any of the classes found.

Further, by just adopting the syntax you listed in Re: The costs of packages, I think I might get exporting to work, also. What follows is a mish-mash of pseudo-code and Perl:

package Class::WhenNeeded;
use File::Find;

sub import {
    my ($class, $top_package, $no_top_level) = @_;
    my @dirs = map { find_top_level_dir($_, $top_package) } @INC;
    foreach my $dir (@dirs) {
        find({
            wanted     => \&create_package_sub($no_top_level),
            preprocess => \&perl_packages,
        }, $dir);
    }
}

sub create_package_sub {   
    my $strip_top_level = shift;
    my $module       = make_module_name($File::Find::name, $strip_top_
+level);
    my $call_pack    = (caller(1))[1];
    if (defined &{$module}) {
        require Carp;
        Carp::croak "Function $module already defined";
    }
    *{$module} = sub {
        undef *{$module};
        eval <<"        END_EVAL";
        package $call_pack;
        use $module; # export goes to calling package?
        END_EVAL

        if ($@) {
            require Carp;
            Carp::croak "Could not load module: $module";
        }
        return $module;
    }
}

[download]

Hopefully that clears things up.

Cheers,
Ovid

New address of my CGI Course.

In reply to Re: Re: DWIM: autoloading classes by Ovid
in thread DWIM: autoloading classes by Ovid

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