NAME
MooseX::Clone::Meta::Attribute::Trait::StorableClone - The attribute trait for deeply cloning attributes using Storable
VERSION
version 0.06
SYNOPSIS
# see MooseX::Clone
has foo => (
traits => [qw(StorableClone)],
isa => "Something",
);
my $clone = $object->clone; # $clone->foo will equal Storable::dclone($object->foo)
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 Right™ 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 toclone_object_value
and setstied_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 andclone_only_objects
is false.
AUTHOR
יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2008 by יובל קוג'מן (Yuval Kogman).
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.