Add built local::lib

[catagits/Gitalist.git] / local-lib5 / lib / perl5 / i486-linux-gnu-thread-multi / metaclass.pm

diff --git a/local-lib5/lib/perl5/i486-linux-gnu-thread-multi/metaclass.pm b/local-lib5/lib/perl5/i486-linux-gnu-thread-multi/metaclass.pm
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+
+package metaclass;
+
+use strict;
+use warnings;
+
+use Carp         'confess';
+use Scalar::Util 'blessed';
+
+our $VERSION   = '0.95';
+$VERSION = eval $VERSION;
+our $AUTHORITY = 'cpan:STEVAN';
+
+use Class::MOP;
+
+sub import {
+    my ( $class, @args ) = @_;
+
+    unshift @args, "metaclass" if @args % 2 == 1;
+    my %options = @args;
+
+    my $metaclass = delete $options{metaclass};
+
+    unless ( defined $metaclass ) {
+        $metaclass = "Class::MOP::Class";
+    } else {
+        Class::MOP::load_class($metaclass);
+    }
+
+    ($metaclass->isa('Class::MOP::Class'))
+        || confess "The metaclass ($metaclass) must be derived from Class::MOP::Class";
+
+    # make sure the custom metaclasses get loaded
+    foreach my $key (grep { /_(?:meta)?class$/ } keys %options) {
+        unless ( ref( my $class = $options{$key} ) ) {
+            Class::MOP::load_class($class)
+        }
+    }
+
+    my $package = caller();
+
+    # create a meta object so we can install &meta
+    my $meta = $metaclass->initialize($package => %options);
+    $meta->add_method('meta' => sub {
+        # we must re-initialize so that it
+        # works as expected in subclasses,
+        # since metaclass instances are
+        # singletons, this is not really a
+        # big deal anyway.
+        $metaclass->initialize((blessed($_[0]) || $_[0]) => %options)
+    });
+}
+
+1;
+
+__END__
+
+=pod
+
+=head1 NAME
+
+metaclass - a pragma for installing and using Class::MOP metaclasses
+
+=head1 SYNOPSIS
+
+  package MyClass;
+
+  # use Class::MOP::Class
+  use metaclass;
+
+  # ... or use a custom metaclass
+  use metaclass 'MyMetaClass';
+
+  # ... or use a custom metaclass
+  # and custom attribute and method
+  # metaclasses
+  use metaclass 'MyMetaClass' => (
+      'attribute_metaclass' => 'MyAttributeMetaClass',
+      'method_metaclass'    => 'MyMethodMetaClass',
+  );
+
+  # ... or just specify custom attribute
+  # and method classes, and Class::MOP::Class
+  # is the assumed metaclass
+  use metaclass (
+      'attribute_metaclass' => 'MyAttributeMetaClass',
+      'method_metaclass'    => 'MyMethodMetaClass',
+  );
+
+=head1 DESCRIPTION
+
+This is a pragma to make it easier to use a specific metaclass
+and a set of custom attribute and method metaclasses. It also
+installs a C<meta> method to your class as well.
+
+=head1 AUTHORS
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2006-2009 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut