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package TAP::Parser::ResultFactory;

use strict;
use vars qw($VERSION @ISA %CLASS_FOR);

use TAP::Object                  ();
use TAP::Parser::Result::Bailout ();
use TAP::Parser::Result::Comment ();
use TAP::Parser::Result::Plan    ();
use TAP::Parser::Result::Pragma  ();
use TAP::Parser::Result::Test    ();
use TAP::Parser::Result::Unknown ();
use TAP::Parser::Result::Version ();
use TAP::Parser::Result::YAML    ();

@ISA = 'TAP::Object';

##############################################################################

=head1 NAME

TAP::Parser::ResultFactory - Factory for creating TAP::Parser output objects

=head1 SYNOPSIS

  use TAP::Parser::ResultFactory;
  my $token   = {...};
  my $factory = TAP::Parser::ResultFactory->new;
  my $result  = $factory->make_result( $token );

=head1 VERSION

Version 3.28

=cut

$VERSION = '3.28';

=head2 DESCRIPTION

This is a simple factory class which returns a L<TAP::Parser::Result> subclass
representing the current bit of test data from TAP (usually a single line).
It is used primarily by L<TAP::Parser::Grammar>.  Unless you're subclassing,
you probably won't need to use this module directly.

=head2 METHODS

=head2 Class Methods

=head3 C<new>

Creates a new factory class.
I<Note:> You currently don't need to instantiate a factory in order to use it.

=head3 C<make_result>

Returns an instance the appropriate class for the test token passed in.

  my $result = TAP::Parser::ResultFactory->make_result($token);

Can also be called as an instance method.

=cut

sub make_result {
    my ( $proto, $token ) = @_;
    my $type = $token->{type};
    return $proto->class_for($type)->new($token);
}

=head3 C<class_for>

Takes one argument: C<$type>.  Returns the class for this $type, or C<croak>s
with an error.

=head3 C<register_type>

Takes two arguments: C<$type>, C<$class>

This lets you override an existing type with your own custom type, or register
a completely new type, eg:

  # create a custom result type:
  package MyResult;
  use strict;
  use vars qw(@ISA);
  @ISA = 'TAP::Parser::Result';

  # register with the factory:
  TAP::Parser::ResultFactory->register_type( 'my_type' => __PACKAGE__ );

  # use it:
  my $r = TAP::Parser::ResultFactory->( { type => 'my_type' } );

Your custom type should then be picked up automatically by the L<TAP::Parser>.

=cut

BEGIN {
    %CLASS_FOR = (
        plan    => 'TAP::Parser::Result::Plan',
        pragma  => 'TAP::Parser::Result::Pragma',
        test    => 'TAP::Parser::Result::Test',
        comment => 'TAP::Parser::Result::Comment',
        bailout => 'TAP::Parser::Result::Bailout',
        version => 'TAP::Parser::Result::Version',
        unknown => 'TAP::Parser::Result::Unknown',
        yaml    => 'TAP::Parser::Result::YAML',
    );
}

sub class_for {
    my ( $class, $type ) = @_;

    # return target class:
    return $CLASS_FOR{$type} if exists $CLASS_FOR{$type};

    # or complain:
    require Carp;
    Carp::croak("Could not determine class for result type '$type'");
}

sub register_type {
    my ( $class, $type, $rclass ) = @_;

    # register it blindly, assume they know what they're doing
    $CLASS_FOR{$type} = $rclass;
    return $class;
}

1;

=head1 SUBCLASSING

Please see L<TAP::Parser/SUBCLASSING> for a subclassing overview.

There are a few things to bear in mind when creating your own
C<ResultFactory>:

=over 4

=item 1

The factory itself is never instantiated (this I<may> change in the future).
This means that C<_initialize> is never called.

=item 2

C<TAP::Parser::Result-E<gt>new> is never called, $tokens are reblessed.
This I<will> change in a future version!

=item 3

L<TAP::Parser::Result> subclasses will register themselves with
L<TAP::Parser::ResultFactory> directly:

  package MyFooResult;
  TAP::Parser::ResultFactory->register_type( foo => __PACKAGE__ );

Of course, it's up to you to decide whether or not to ignore them.

=back

=head2 Example

  package MyResultFactory;

  use strict;
  use vars '@ISA';

  use MyResult;
  use TAP::Parser::ResultFactory;

  @ISA = qw( TAP::Parser::ResultFactory );

  # force all results to be 'MyResult'
  sub class_for {
    return 'MyResult';
  }

  1;

=head1 SEE ALSO

L<TAP::Parser>,
L<TAP::Parser::Result>,
L<TAP::Parser::Grammar>

=cut

Filemanager

Name Type Size Permission Actions
Iterator Folder 0755
Result Folder 0755
Scheduler Folder 0755
SourceHandler Folder 0755
YAMLish Folder 0755
Aggregator.pm File 9.06 KB 0644
Grammar.pm File 15.34 KB 0644
Iterator.pm File 2.98 KB 0644
IteratorFactory.pm File 7.92 KB 0644
Multiplexer.pm File 4.19 KB 0644
Result.pm File 6.05 KB 0644
ResultFactory.pm File 4.17 KB 0644
Scheduler.pm File 11.28 KB 0644
Source.pm File 9.36 KB 0644
SourceHandler.pm File 5.12 KB 0644
Utils.pm File 1.44 KB 0644