1MooseX::Clone::Meta::AtUtsreirbuCtoenM:to:roTisrbeauXit:te::dC:lCPolenorenl:e:(DM3oepctmua)m:e:nAttattriiobnute::Trait::Clone(3pm)
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6 MooseX::Clone::Meta::Attribute::Trait::Clone - The attribute trait for
7 deeply cloning attributes
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10 version 0.06
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13 # see MooseX::Clone
14
15 has foo => (
16 traits => [qw(Clone)],
17 isa => "Something",
18 );
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20 $object->clone; # will recursively call $object->foo->clone and set the value properly
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23 This meta attribute trait provides a "clone_value" method, in the
24 spirit of "get_value" and "set_value". This allows clone methods such
25 as the one in MooseX::Clone to make use of this per-attribute cloning
26 behavior.
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29 Deriving this role for your own cloning purposes is encouraged.
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31 This will allow your fine grained cloning semantics to interact with
32 MooseX::Clone in the RightX way.
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35 clone_only_objects
36 Whether or not Data::Visitor should be used to clone arbitrary
37 structures. Objects found in these structures will be cloned using
38 clone_object_value.
39
40 If true then non object values will be copied over in shallow
41 cloning semantics (shared reference).
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43 Defaults to false (all reference will be cloned).
44
45 clone_visitor_config
46 A hash ref used to construct "clone_visitor". Defaults to the empty
47 ref.
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49 This can be used to alter the cloning behavior for non object
50 values.
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52 clone_visitor
53 The Data::Visitor::Callback object that will be used to clone.
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55 It has an "object" handler that delegates to "clone_object_value"
56 and sets "tied_as_objects" to true in order to deeply clone tied
57 structures while retaining magic.
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59 Only used if "clone_only_objects" is false and the value of the
60 attribute is not an object.
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63 clone_value $target, $proto, %args
64 Clones the value the attribute encapsulates from $proto into
65 $target.
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67 clone_value_data $value, %args
68 Does the actual cloning of the value data by delegating to a
69 "clone" method on the object if any.
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71 If the object does not support a "clone" method an error is thrown.
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73 If the value is not an object then it will not be cloned.
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75 In the future support for deep cloning of simple refs will be added
76 too.
77
78 clone_object_value $object, %args
79 This is the actual workhorse of "clone_value_data".
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81 clone_any_value $value, %args
82 Uses "clone_visitor" to clone all non object values.
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84 Called from "clone_value_data" if the value is not an object and
85 "clone_only_objects" is false.
86
88 XXXX XXX'XX (Yuval Kogman) <nothingmuch@woobling.org>
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91 This software is copyright (c) 2008 by XXXX XXX'XX (Yuval Kogman).
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93 This is free software; you can redistribute it and/or modify it under
94 the same terms as the Perl 5 programming language system itself.
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98perl v5.28.1 Moose2X0:1:5C-l0o5n-e2:3:Meta::Attribute::Trait::Clone(3pm)