Moose::Meta::TypeConstraint::UnUser3Contributed Perl DocumMoose::Meta::TypeConstraint::Union(3pm)



NAME
       Moose::Meta::TypeConstraint::Union - A union of Moose type constraints

VERSION
       version 2.1213

DESCRIPTION
       This metaclass represents a union of type constraints. A union takes multiple type
       constraints, and is true if any one of its member constraints is true.

INHERITANCE
       "Moose::Meta::TypeConstraint::Union" is a subclass of Moose::Meta::TypeConstraint.

       Moose::Meta::TypeConstraint::Union->new(%options)
           This creates a new class type constraint based on the given %options.

           It takes the same options as its parent. It also requires an additional option,
           "type_constraints". This is an array reference containing the
           Moose::Meta::TypeConstraint objects that are the members of the union type. The "name"
           option defaults to the names all of these member types sorted and then joined by a
           pipe (|).

           The constructor sets the implementation of the constraint so that is simply calls
           "check" on the newly created object.

           Finally, the constructor also makes sure that the object's "coercion" attribute is a
           Moose::Meta::TypeCoercion::Union object.

       $constraint->type_constraints
           This returns the array reference of "type_constraints" provided to the constructor.

       $constraint->parent
           This returns the nearest common ancestor of all the components of the union.

       $constraint->check($value)
       $constraint->validate($value)
           These two methods simply call the relevant method on each of the member type
           constraints in the union. If any type accepts the value, the value is valid.

           With "validate" the error message returned includes all of the error messages returned
           by the member type constraints.

       $constraint->equals($type_name_or_object)
           A type is considered equal if it is also a union type, and the two unions have the
           same member types.

       $constraint->find_type_for($value)
           This returns the first member type constraint for which "check($value)" is true,
           allowing you to determine which of the Union's member type constraints a given value
           matches.

       $constraint->is_a_type_of($type_name_or_object)
           This returns true if all of the member type constraints return true for the
           "is_a_type_of" method.

       $constraint->is_subtype_of
           This returns true if all of the member type constraints return true for the
           "is_a_subtype_of" method.

       $constraint->create_child_type(%options)
           This returns a new Moose::Meta::TypeConstraint object with the type as its parent.

BUGS
       See "BUGS" in Moose for details on reporting bugs.

AUTHORS
       ·   Stevan Little <stevan.little AT iinteractive.com>

       ·   Dave Rolsky <autarch AT urth.org>

       ·   Jesse Luehrs <doy AT tozt.net>

       ·   Shawn M Moore <code AT sartak.org>

       ·   XXXX XXX'XX (Yuval Kogman) <nothingmuch AT woobling.org>

       ·   Karen Etheridge <ether AT cpan.org>

       ·   Florian Ragwitz <rafl AT debian.org>

       ·   Hans Dieter Pearcey <hdp AT weftsoar.net>

       ·   Chris Prather <chris AT prather.org>

       ·   Matt S Trout <mst AT shadowcat.uk>

COPYRIGHT AND LICENSE
       This software is copyright (c) 2006 by Infinity Interactive, Inc..

       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 v5.20.1                                2014-09-25    Moose::Meta::TypeConstraint::Union(3pm)