MooseX::Clone::Meta::Attribute::Trait::Clone(3pm)	User Contributed Perl Documentation	 MooseX::Clone::Meta::Attribute::Trait::Clone(3pm)

NAME

       MooseX::Clone::Meta::Attribute::Trait::Clone - The Moose::Meta::Attribute trait for deeply cloning attributes.

SYNOPSIS

	   # see MooseX::Clone

	   has foo => (
	       traits => [qw(Clone)],
	       isa => "Something",
	   );

	   $object->clone; # will recursively call $object->foo->clone and set the value properly

DESCRIPTION

       This meta attribute trait provides a "clone_value" method, in the spirit of "get_value" and "set_value". This allows clone methods such as
       the one in MooseX::Clone to make use of this per-attribute cloning behavior.

DERIVATION

       Deriving this role for your own cloning purposes is encouraged.

       This will allow your fine grained cloning semantics to interact with MooseX::Clone in the RightX way.

ATTRIBUTES

       clone_only_objects
	   Whether or not Data::Visitor should be used to clone arbitrary structures.  Objects found in these structures will be cloned using
	   clone_object_value.

	   If true then non object values will be copied over in shallow cloning semantics (shared reference).

	   Defaults to false (all reference will be cloned).

       clone_visitor_config
	   A hash ref used to construct "clone_visitor". Defaults to the empty ref.

	   This can be used to alter the cloning behavior for non object values.

       clone_visitor
	   The Data::Visitor::Callback object that will be used to clone.

	   It has an "object" handler that delegates to "clone_object_value" and sets "tied_as_objects" to true in order to deeply clone tied
	   structures while retaining magic.

	   Only used if "clone_only_objects" is false and the value of the attribute is not an object.

METHODS

       clone_value $target, $proto, %args
	   Clones the value the attribute encapsulates from $proto into $target.

       clone_value_data $value, %args
	   Does the actual cloning of the value data by delegating to a "clone" method on the object if any.

	   If the object does not support a "clone" method an error is thrown.

	   If the value is not an object then it will not be cloned.

	   In the future support for deep cloning of simple refs will be added too.

       clone_object_value $object, %args
	   This is the actual workhorse of "clone_value_data".

       clone_any_value $value, %args
	   Uses "clone_visitor" to clone all non object values.

	   Called from "clone_value_data" if the value is not an object and "clone_only_objects" is false.

perl v5.10.1							    2010-01-01			 MooseX::Clone::Meta::Attribute::Trait::Clone(3pm)