Moose::Meta::TypeConstraint::Union - A union of Moose type constraints
version 2.2201
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.
Moose::Meta::TypeConstraint::Union is a subclass of
the Moose::Meta::TypeConstraint manpage.
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 the Moose::Meta::TypeConstraint manpage 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 the Moose::Meta::TypeCoercion::Union manpage object.
This returns the array reference of type_constraints provided to
the constructor.
This returns the nearest common ancestor of all the components of the union.
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.
A type is considered equal if it is also a union type, and the two
unions have the same member types.
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.
This returns true if all of the member type constraints return true
for the is_a_type_of method.
This returns true if all of the member type constraints return true
for the is_subtype_of method.
This returns a new the Moose::Meta::TypeConstraint manpage object with the type
as its parent.
See Moose/BUGS for details on reporting bugs.
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.
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