1Moose::Meta::TypeConstrUasienrt:C:oUnntiroinb(u3t)ed PerMlooDsoec:u:mMeenttaa:t:iToynpeConstraint::Union(3)
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NAME

6       Moose::Meta::TypeConstraint::Union - A union of Moose type constraints
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VERSION

9       version 2.2011
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DESCRIPTION

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

17       "Moose::Meta::TypeConstraint::Union" is a subclass of
18       Moose::Meta::TypeConstraint.
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METHODS

21   Moose::Meta::TypeConstraint::Union->new(%options)
22       This creates a new class type constraint based on the given %options.
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24       It takes the same options as its parent. It also requires an additional
25       option, "type_constraints". This is an array reference containing the
26       Moose::Meta::TypeConstraint objects that are the members of the union
27       type. The "name" option defaults to the names all of these member types
28       sorted and then joined by a pipe (|).
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30       The constructor sets the implementation of the constraint so that is
31       simply calls "check" on the newly created object.
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33       Finally, the constructor also makes sure that the object's "coercion"
34       attribute is a Moose::Meta::TypeCoercion::Union object.
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36   $constraint->type_constraints
37       This returns the array reference of "type_constraints" provided to the
38       constructor.
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40   $constraint->parent
41       This returns the nearest common ancestor of all the components of the
42       union.
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44   $constraint->check($value)
45   $constraint->validate($value)
46       These two methods simply call the relevant method on each of the member
47       type constraints in the union. If any type accepts the value, the value
48       is valid.
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50       With "validate" the error message returned includes all of the error
51       messages returned by the member type constraints.
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53   $constraint->equals($type_name_or_object)
54       A type is considered equal if it is also a union type, and the two
55       unions have the same member types.
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57   $constraint->find_type_for($value)
58       This returns the first member type constraint for which "check($value)"
59       is true, allowing you to determine which of the Union's member type
60       constraints a given value matches.
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62   $constraint->is_a_type_of($type_name_or_object)
63       This returns true if all of the member type constraints return true for
64       the "is_a_type_of" method.
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66   $constraint->is_subtype_of
67       This returns true if all of the member type constraints return true for
68       the "is_subtype_of" method.
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70   $constraint->create_child_type(%options)
71       This returns a new Moose::Meta::TypeConstraint object with the type as
72       its parent.
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BUGS

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

78       ·   Stevan Little <stevan.little@iinteractive.com>
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80       ·   Dave Rolsky <autarch@urth.org>
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82       ·   Jesse Luehrs <doy@tozt.net>
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84       ·   Shawn M Moore <code@sartak.org>
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86       ·   יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
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88       ·   Karen Etheridge <ether@cpan.org>
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90       ·   Florian Ragwitz <rafl@debian.org>
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92       ·   Hans Dieter Pearcey <hdp@weftsoar.net>
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94       ·   Chris Prather <chris@prather.org>
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96       ·   Matt S Trout <mst@shadowcat.co.uk>
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99       This software is copyright (c) 2006 by Infinity Interactive, Inc.
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101       This is free software; you can redistribute it and/or modify it under
102       the same terms as the Perl 5 programming language system itself.
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106perl v5.28.0                      2018-05-M1o6ose::Meta::TypeConstraint::Union(3)
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