CPAN::Meta::Prereqs5.16 man page on Darwin

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CPAN::Meta::Prereqs(3)User Contributed Perl DocumentatioCPAN::Meta::Prereqs(3)

NAME
       CPAN::Meta::Prereqs - a set of distribution prerequisites by phase and
       type

VERSION
       version 2.120921

DESCRIPTION
       A CPAN::Meta::Prereqs object represents the prerequisites for a CPAN
       distribution or one of its optional features.  Each set of prereqs is
       organized by phase and type, as described in CPAN::Meta::Prereqs.

METHODS
   new
	 my $prereq = CPAN::Meta::Prereqs->new( \%prereq_spec );

       This method returns a new set of Prereqs.  The input should look like
       the contents of the "prereqs" field described in CPAN::Meta::Spec,
       meaning something more or less like this:

	 my $prereq = CPAN::Meta::Prereqs->new({
	   runtime => {
	     requires => {
	       'Some::Module' => '1.234',
	       ...,
	     },
	     ...,
	   },
	   ...,
	 });

       You can also construct an empty set of prereqs with:

	 my $prereqs = CPAN::Meta::Prereqs->new;

       This empty set of prereqs is useful for accumulating new prereqs before
       finally dumping the whole set into a structure or string.

   requirements_for
	 my $requirements = $prereqs->requirements_for( $phase, $type );

       This method returns a CPAN::Meta::Requirements object for the given
       phase/type combination.	If no prerequisites are registered for that
       combination, a new CPAN::Meta::Requirements object will be returned,
       and it may be added to as needed.

       If $phase or $type are undefined or otherwise invalid, an exception
       will be raised.

   with_merged_prereqs
	 my $new_prereqs = $prereqs->with_merged_prereqs( $other_prereqs );

	 my $new_prereqs = $prereqs->with_merged_prereqs( \@other_prereqs );

       This method returns a new CPAN::Meta::Prereqs objects in which all the
       other prerequisites given are merged into the current set.  This is
       primarily provided for combining a distribution's core prereqs with the
       prereqs of one of its optional features.

       The new prereqs object has no ties to the originals, and altering it
       further will not alter them.

   as_string_hash
       This method returns a hashref containing structures suitable for
       dumping into a distmeta data structure.	It is made up of hashes and
       strings, only; there will be no Prereqs, CPAN::Meta::Requirements, or
       "version" objects inside it.

   is_finalized
       This method returns true if the set of prereqs has been marked
       "finalized," and cannot be altered.

   finalize
       Calling "finalize" on a Prereqs object will close it for further
       modification.  Attempting to make any changes that would actually alter
       the prereqs will result in an exception being thrown.

   clone
	 my $cloned_prereqs = $prereqs->clone;

       This method returns a Prereqs object that is identical to the original
       object, but can be altered without affecting the original object.
       Finalization does not survive cloning, meaning that you may clone a
       finalized set of prereqs and then modify the clone.

BUGS
       Please report any bugs or feature using the CPAN Request Tracker.  Bugs
       can be submitted through the web interface at
       http://rt.cpan.org/Dist/Display.html?Queue=CPAN-Meta
       <http://rt.cpan.org/Dist/Display.html?Queue=CPAN-Meta>

       When submitting a bug or request, please include a test-file or a patch
       to an existing test-file that illustrates the bug or desired feature.

AUTHORS
       ·   David Golden <dagolden@cpan.org>

       ·   Ricardo Signes <rjbs@cpan.org>

COPYRIGHT AND LICENSE
       This software is copyright (c) 2010 by David Golden and Ricardo Signes.

       This is free software; you can redistribute it and/or modify it under
       the same terms as the Perl 5 programming language system itself.

perl v5.16.2			  2012-04-01		CPAN::Meta::Prereqs(3)
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