Class:...::Perl(3pm)

💖 Class::Meta::Types::Perl — Perl data types 💖

okay bestie, so this is one of those User Contributed Perl Documentation pages, and honestly? it's a little gem. it's Class:...::Perl(3pm) in the wild, but we're gonna call it by its government name: Class::Meta::Types::Perl. it's giving "small module, big main character energy." 🫶

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✨ NAME ✨

Class::Meta::Types::Perl — Perl data types. that's it. that's the whole name. short, sweet, iconic. 💅

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🎀 SYNOPSIS 🎀

here's the vibe, copy-paste ready, no notes:

package MyApp::Thingy;
use strict;
use Class::Meta;
use Class::Meta::Types::Perl;
# OR...
# use Class::Meta::Types::Perl 'affordance';
# OR...
# use Class::Meta::Types::Perl 'semi-affordance';

BEGIN {
    # Create a Class::Meta object for this class.
    my $cm = Class::Meta->new( key => 'thingy' );

    # Add an integer attribute.
    $cm->add_attribute( name => 'my_hash',
                        type => 'hash' );
    $cm->build;
}

notice the comments? those three use lines are alternatives — you can load it plain, or with 'affordance', or with 'semi-affordance'. pick your fighter. 🔥

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🌸 DESCRIPTION 🌸

so like, this module hands you Perl data types so you can use them with Class::Meta attributes. the way that you use it is so easy: just load it, then pass the name of one of its types to the add_attribute() method on a Class::Meta object. that's the whole ritual. ✨

want the deep lore on using and creating data types? that's in Class::Meta::Type. go read it, bestie, it's right there. 📖

the validation checks for Class::Meta::Types::Perl come from Class::Meta::Type's support for object type validation — because Perl data types are understood by UNIVERSAL::isa(). no cap. 🧚

here are the data types this module creates, one by one, no skipping:

• scalar — a simple scalar value. it can be anything, and it has no validation checks. zero rules, zero problems, truly living its best life. 🙈
• scalarref — a scalar reference. UNIVERSAL::isa() must return 'SCALAR'.
• array
• arrayref — a array reference. UNIVERSAL::isa() must return 'ARRAY'. (yes, both names, same energy. twins. 👯)
• hash
• hashref — a hash reference. UNIVERSAL::isa() must return 'HASH'.
• code
• coderef
• closure — a code reference. also known as a closure. UNIVERSAL::isa() must return 'CODE'. three names for one slay. 👑

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🦋 SUPPORT 🦋

this module lives in an open GitHub repository at <http://github.com/theory/class-meta/>. feel free to fork and contribute — literally, the door is open, come through. 💖

got a bug? file it via GitHub Issues at <http://github.com/theory/class-meta/issues/> or send mail to <bug-Class-Meta@rt.cpan.org> (mailto: <bug-Class-Meta@rt.cpan.org>). we listen, we care, we fix. 🫶

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👑 AUTHOR 👑

David E. Wheeler <david@justatheory.com>. the icon, the legend, the moment. 💜

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🌈 SEE ALSO 🌈

other classes of interest within the Class::Meta distribution, aka the friend group:

• Class::Meta — this class contains most of the documentation you need to get started with Class::Meta. start here, bestie, fr fr.
• Class::Meta::Type — this class manages the creation of data types.
• Class::Meta::Attribute — this class manages Class::Meta class attributes, all of which are based on data types.

other data type modules, the extended universe:

• Class::Meta::Types::String
• Class::Meta::Types::Boolean
• Class::Meta::Types::Numeric

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💜 COPYRIGHT AND LICENSE 💜

Copyright (c) 2002-2011, David E. Wheeler. Some Rights Reserved.

this module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

periodt. no cap, that's the actual license text, don't @ me. 💅

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and that's the whole page, bestie! 🎀 this was perl v5.34.0, dated 2022-06-11, filed under Class:...::Perl(3pm). go forth and type your data responsibly. slay. ✨🦋🌸