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package Web::Components::Role; |
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use namespace::autoclean; |
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use Web::Components::Util qw( deref ); |
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use Web::ComposableRequest::Constants qw( TRUE ); |
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use Unexpected::Types qw( HashRef NonEmptySimpleStr |
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NonNumericSimpleStr Object ); |
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use Moo::Role; |
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has 'components' => is => 'ro', isa => HashRef, default => sub { {} }, |
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weak_ref => TRUE; |
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has 'config' => is => 'ro', isa => Object | HashRef, required => TRUE; |
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has 'encoding' => is => 'lazy', isa => NonEmptySimpleStr, |
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builder => sub { deref $_[ 0 ]->config, 'encoding' }; |
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has 'log' => is => 'ro', isa => Object, required => TRUE; |
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has 'moniker' => is => 'ro', isa => NonNumericSimpleStr, required => TRUE; |
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around 'BUILDARGS' => sub { |
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my ($orig, $self, @args) = @_; my $attr = $orig->( $self, @args ); my $app; |
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(exists $attr->{application} and $app = $attr->{application}) |
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or return $attr; |
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$app->can( 'config' ) and $attr->{config} //= $app->config; |
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$app->can( 'log' ) and $attr->{log } //= $app->log; |
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return $attr; |
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}; |
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1; |
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__END__ |
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=pod |
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=encoding utf-8 |
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=head1 Name |
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Web::Components::Role - Attributes used when instantiating a Web::Components object |
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=head1 Synopsis |
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use Moo; |
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with 'Web::Components::Role'; |
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=head1 Description |
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Attributes used when instantiating a Web::Components object |
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=head1 Configuration and Environment |
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Defines the following attributes; |
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=over 3 |
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=item C<components> |
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A hash reference of component object references. This is not fully populated |
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until all of the components have been loaded. It can be used by components to |
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discover other dependant components |
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=item C<config> |
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A required object or hash reference |
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=item C<encoding> |
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A non empty simple string that defaults to the value of the configuration |
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attribute of the same name. Used to set input and output decoding / encoding |
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=item C<log> |
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A required object reference of type C<Logger>. The log object should support |
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the C<log> call as well as the usual log level calls |
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=item C<moniker> |
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A required non numeric simple string. This is the component name. It is used |
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to uniquely identify a component in the component collections held by the role |
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L<Web::Components::Loader> |
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=back |
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=head1 Subroutines/Methods |
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=head2 C<BUILDARGS> |
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If supplied with an object reference called C<application> the C<config> and |
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C<log> attribute values will be set from it if they are otherwise undefined |
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=head1 Diagnostics |
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None |
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=head1 Dependencies |
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=over 3 |
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=item L<Moo> |
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=item L<Web::ComposableRequest> |
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=item L<Unexpected> |
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=back |
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=head1 Incompatibilities |
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There are no known incompatibilities in this module |
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=head1 Bugs and Limitations |
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There are no known bugs in this module. Please report problems to |
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http://rt.cpan.org/NoAuth/Bugs.html?Dist=Web-Components. |
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Patches are welcome |
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=head1 Acknowledgements |
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Larry Wall - For the Perl programming language |
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=head1 Author |
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Peter Flanigan, C<< <pjfl@cpan.org> >> |
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=head1 License and Copyright |
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Copyright (c) 2017 Peter Flanigan. All rights reserved |
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. See L<perlartistic> |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE |
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=cut |
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# Local Variables: |
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# mode: perl |
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# tab-width: 3 |
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# End: |
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# vim: expandtab shiftwidth=3: |