perldoc > Class::Virtually::Abstract

📖 NAME

Class::Virtually::Abstract - Compile-time enforcement of Class::Virtual

🚀 Quick Reference

📋 SYNOPSIS

      package My::Virtual::Idaho;
      use base qw(Class::Virtually::Abstract);

      __PACKAGE__->virtual_methods(qw(new foo bar this that));


      package My::Private::Idaho;
      use base qw(My::Virtual::Idaho);

      sub new { ... }
      sub foo { ... }
      sub bar { ... }
      sub this { ... }
      # oops, forgot to implement that()!!  Whatever will happen?!


      # Meanwhile, in another piece of code!
      # KA-BLAM!  My::Private::Idaho fails to compile because it didn't
      # fully implement My::Virtual::Idaho.
      use My::Private::Idaho;

📖 DESCRIPTION

This subclass of Class::Virtual provides compile-time enforcement. That means subclasses of your virtual class are required to implement all virtual methods or else it will not compile.

🐛 BUGS and CAVEATS

• 🐛 Because this relies on import() it is important that your classes are used instead of required. This is a problem, and I'm trying to figure a way around it.
• 🐛 Also, if a subclass defines its own import() routine (I've done it) Class::Virtually::Abstract's compile-time checking is defeated. Got to think of a better way to do this besides import().

👤 AUTHOR

Original idea and code from Ben Tilly's AbstractClass
http://www.perlmonks.org/index.pl?node_id=44300&lastnode_id=45341

Embraced and Extended by Michael G Schwern <schwern AT pobox.com>

📚 SEE ALSO

Class::Virtual