moose::meta::typecoercion::union(3) [osx man page]

Moose::Meta::TypeCoercion::Union(3)			User Contributed Perl Documentation		       Moose::Meta::TypeCoercion::Union(3)

NAME

       Moose::Meta::TypeCoercion::Union - The Moose Type Coercion metaclass for Unions

VERSION

       version 2.0604

DESCRIPTION

       This is a subclass of Moose::Meta::TypeCoercion that is used for Moose::Meta::TypeConstraint::Union objects.  =head1 METHODS

       $coercion->has_coercion_for_type
	   This method always returns false.

       $coercion->add_type_coercions
	   This method always throws an error. You cannot add coercions to a union type coercion.

       $coercion->coerce($value)
	   This method will coerce by trying the coercions for each type in the union.

BUGS

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

AUTHOR

       Moose is maintained by the Moose Cabal, along with the help of many contributors. See "CABAL" in Moose and "CONTRIBUTORS" in Moose for
       details.

COPYRIGHT AND LICENSE

       This software is copyright (c) 2012 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 v5.16.2							    2012-09-19				       Moose::Meta::TypeCoercion::Union(3)

Moose::Meta::TypeCoercion(3pm)				User Contributed Perl Documentation			    Moose::Meta::TypeCoercion(3pm)

NAME

       Moose::Meta::TypeCoercion - The Moose Type Coercion metaclass

VERSION

       version 2.0603

DESCRIPTION

       A type coercion object is basically a mapping of one or more type constraints and the associated coercions subroutines.

       It's unlikely that you will need to instantiate an object of this class directly, as it's part of the deep internals of Moose.

METHODS

       Moose::Meta::TypeCoercion->new(%options)
	   Creates a new type coercion object, based on the options provided.

	   o	   type_constraint

		   This is the Moose::Meta::TypeConstraint object for the type that is being coerced to.

       $coercion->type_coercion_map
	   This returns the map of type constraints to coercions as an array reference. The values of the array alternate between type names and
	   subroutine references which implement the coercion.

	   The value is an array reference because coercions are tried in the order they are added.

       $coercion->type_constraint
	   This returns the Moose::Meta::TypeConstraint that was passed to the constructor.

       $coercion->has_coercion_for_type($type_name)
	   Returns true if the coercion can coerce the named type.

       $coercion->add_type_coercions( $type_name => $sub, ... )
	   This method takes a list of type names and subroutine references. If the coercion already has a mapping for a given type, it throws an
	   exception.

	   Coercions are actually

       $coercion->coerce($value)
	   This method takes a value and applies the first valid coercion it finds.

	   This means that if the value could belong to more than type in the coercion object, the first coercion added is used.

       Moose::Meta::TypeCoercion->meta
	   This will return a Class::MOP::Class instance for this class.

BUGS

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

AUTHOR

       Moose is maintained by the Moose Cabal, along with the help of many contributors. See "CABAL" in Moose and "CONTRIBUTORS" in Moose for
       details.

COPYRIGHT AND LICENSE

       This software is copyright (c) 2012 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 v5.14.2							    2012-06-28					    Moose::Meta::TypeCoercion(3pm)