X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMooseX%2FSingleton.pm;h=bde50659ef803c3841af03a4e19a32959de4194c;hb=b1882d9b6ec47b18a97dadb6e1326305d890c806;hp=c8c41235d5baa8d77ef2fb785c0624ef8ea3d6f9;hpb=109b110b1d5969c8ae2ec7a5e5d86066f895d828;p=gitmo%2FMooseX-Singleton.git

diff --git a/lib/MooseX/Singleton.pm b/lib/MooseX/Singleton.pm
index c8c4123..bde5065 100644
--- a/lib/MooseX/Singleton.pm
+++ b/lib/MooseX/Singleton.pm
@@ -1,20 +1,115 @@
 package MooseX::Singleton;
-use Moose;
+
+use Moose 0.82 ();
+use Moose::Exporter;
 use MooseX::Singleton::Object;
 use MooseX::Singleton::Meta::Class;
 
-our $VERSION = 0.02;
-
-sub import {
-    my $caller = caller;
-
-    Moose::init_meta($caller, 'MooseX::Singleton::Object', 'MooseX::Singleton::Meta::Class');
+our $VERSION = '0.19';
+$VERSION = eval $VERSION;
 
-    Moose->import({into => $caller});
-    strict->import;
-    warnings->import;
+Moose::Exporter->setup_import_methods( also => 'Moose' );
 
+sub init_meta {
+    shift;
+    Moose->init_meta(
+        @_,
+        base_class => 'MooseX::Singleton::Object',
+        metaclass  => 'MooseX::Singleton::Meta::Class',
+    );
 }
 
 1;
 
+__END__
+
+=pod
+
+=head1 NAME
+
+MooseX::Singleton - turn your Moose class into a singleton
+
+=head1 VERSION
+
+Version 0.18, released 24 May 08
+
+=head1 SYNOPSIS
+
+    package MyApp;
+    use MooseX::Singleton;
+
+    has env => (
+        is      => 'rw',
+        isa     => 'HashRef[Str]',
+        default => sub { \%ENV },
+    );
+
+    package main;
+
+    delete MyApp->env->{PATH};
+    my $instance = MyApp->instance;
+    my $same = MyApp->instance;
+
+=head1 DESCRIPTION
+
+A singleton is a class that has only one instance in an application.
+C<MooseX::Singleton> lets you easily upgrade (or downgrade, as it were) your
+L<Moose> class to a singleton.
+
+All you should need to do to transform your class is to change C<use Moose> to
+C<use MooseX::Singleton>. This module uses a new class metaclass and instance
+metaclass, so if you're doing metamagic you may not be able to use this.
+
+C<MooseX::Singleton> gives your class an C<instance> method that can be used to
+get a handle on the singleton. It's actually just an alias for C<new>.
+
+Alternatively, C<< YourPackage->method >> should just work. This includes
+accessors.
+
+If you need to reset your class's singleton object for some reason (e.g.
+tests), you can call C<< YourPackage->_clear_instance >>.
+
+=head1 TODO
+
+=over
+
+=item Always more tests and doc
+
+=item Fix speed boost
+
+C<instance> invokes C<new> every time C<< Package->method >> is called, which
+incurs a nontrivial runtime cost. I've implemented a short-circuit for this
+case, which does eliminate nearly all of the runtime cost. However, it's ugly
+and should be fixed in a more elegant way.
+
+=back
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no 
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHORS
+
+Shawn M Moore E<lt>sartak@gmail.comE<gt>
+
+Dave Rolsky E<lt>autarch@urth.orgE<gt>
+
+=head1 SOME CODE STOLEN FROM
+
+Anders Nor Berle E<lt>debolaz@gmail.comE<gt>
+
+=head1 AND PATCHES FROM
+
+Ricardo SIGNES E<lt>rjbs@cpan.orgE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2007, 2008 Infinity Interactive
+
+This program is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.
+
+=cut
+