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package MooseX::DeclareX::Plugin::singleton; |
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BEGIN { |
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$MooseX::DeclareX::Plugin::singleton::AUTHORITY = 'cpan:TOBYINK'; |
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$MooseX::DeclareX::Plugin::singleton::VERSION = '0.003'; |
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} |
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use Moose; |
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with 'MooseX::DeclareX::Plugin'; |
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use MooseX::Declare 0 (); |
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use Moose::Util (); |
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use MooseX::Singleton::Role::Object 0 (); |
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sub _callback |
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{ |
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my $caller = shift; |
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Moose::Util::MetaRole::apply_metaroles( |
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for => $caller, |
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class_metaroles => { |
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class => ['MooseX::Singleton::Role::Meta::Class'], |
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instance => ['MooseX::Singleton::Role::Meta::Instance'], |
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constructor => ['MooseX::Singleton::Role::Meta::Method::Constructor'], |
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}, |
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); |
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Moose::Util::MetaRole::apply_base_class_roles( |
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for => $caller, |
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roles => ['MooseX::Singleton::Role::Object'], |
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); |
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} |
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sub plugin_setup |
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{ |
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my ($class, $kw) = @_; |
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if ($kw->isa('MooseX::DeclareX::Keyword::class')) |
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{ |
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$kw->register_feature(singleton => sub { |
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my ($self, $ctx, $package) = @_; |
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$ctx->add_early_cleanup_code_parts( |
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"MooseX::DeclareX::Plugin::singleton::_callback(q[$package])" |
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); |
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}); |
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} |
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} |
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1; |
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__END__ |
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=head1 NAME |
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MooseX::DeclareX::Plugin::singleton - shiny syntax for MooseX::Singleton |
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=head1 SYNOPSIS |
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class Logger is singleton |
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{ |
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method log ($str) { |
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...; |
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} |
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} |
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Logger->instance->log("here we are!"); |
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=head1 DESCRIPTION |
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This distribution extends MooseX::DeclareX with a new plugin: |
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=over |
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=item C<< is singleton >> |
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Marks a class as a singleton, providing C<< instance >> and C<< initialize >> |
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methods as per L<MooseX::Singleton>. |
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=back |
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=head1 BUGS |
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83
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B<Known issue:> you may occasionally get errors about inlining the constructor. |
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Please report any bugs to |
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L<http://rt.cpan.org/Dist/Display.html?Queue=MooseX-DeclareX-Plugin-singleton>. |
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=head1 SEE ALSO |
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90
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L<MooseX::DeclareX>, L<MooseX::Singleton>. |
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=head1 AUTHOR |
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94
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Toby Inkster E<lt>tobyink@cpan.orgE<gt>. |
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=head1 COPYRIGHT AND LICENCE |
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This software is copyright (c) 2012 by Toby Inkster. |
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100
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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103
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=head1 DISCLAIMER OF WARRANTIES |
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THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED |
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WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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