1Sub::HandlesVia::ManualU:s:eWritChoOnbtjreicbtuPtaeddS(u3Pb)e:r:lHaDnodcluemseVnitaa:t:iMoannual::WithObjectPad(3)
2
3
4

NAME

6       Sub::HandlesVia::Manual::WithObjectPad - using Sub::HandlesVia with
7       Object::Pad
8

SYNOPSIS

10        use Object::Pad;
11
12        class Kitchen {
13          has @foods;
14          use Sub::HandlesVia::Declare '@foods', Array => (
15            all_foods => 'all',
16            add_food  => 'push',
17          );
18        }
19

MANUAL

21       Sub::HandlesVia allows you to delegate methods from your class to the
22       values of your objects' attributes.
23
24       Conceptually, it allows you to define "$object->push_number($n)" to be
25       a shortcut for "$object->numbers->push($n)" except that
26       "$object->numbers" is an arrayref, so doesn't have methods you can call
27       on it like "push".
28
29       Experimental Object::Pad support is provided by Sub::HandlesVia,
30       including for array and hash fields.
31
32       Object::Pad classes are "sealed" after compile time, preventing new
33       methods from being installed at run-time. (It's actually trivially easy
34       to add them at runtime, but not using the API provided by the
35       Object::Pad MOP, so we don't do that.) This is why
36       Sub::Handles::Declare is used, as it creates delegated methods at
37       compile-time.
38
39       The first argument is the field name, including its sigil.
40
41       The second argument is the handler library. If the field name begins
42       with a '@' or '%', this is implied to be "Array"/"Hash".
43
44        use Object::Pad;
45
46        class Kitchen {
47          has @foods;
48          use Sub::HandlesVia::Declare '@foods', (
49            all_foods => 'all',
50            add_food  => 'push',
51          );
52        }
53
54       The third argument is a hash of methods to delegate.
55
56   Which Methods Can Be Delegated To?
57       The second parameter ("Array" in the synopsis) indicates which library
58       of methods should be available. Valid values include Array, Blessed,
59       Bool, Code, Counter, Hash, Number, Scalar, and String.
60
61       An arrayref can be provided, though many of the options are
62       conceptually contradictory.
63
64        use Sub::HandlesVia::Declare 'num', [ 'Number', 'Scalar' ] => (
65          ...,
66        );
67

BUGS

69       Please report any bugs to
70       <https://github.com/tobyink/p5-sub-handlesvia/issues>.
71

SEE ALSO

73       Misc advanced documentation: Sub::HandlesVia::Manual::Advanced.
74
75       Sub::HandlesVia, Sub::HandlesVia::Declare.
76
77       Documentation for delegatable methods:
78       Sub::HandlesVia::HandlerLibrary::Array,
79       Sub::HandlesVia::HandlerLibrary::Blessed,
80       Sub::HandlesVia::HandlerLibrary::Bool,
81       Sub::HandlesVia::HandlerLibrary::Code,
82       Sub::HandlesVia::HandlerLibrary::Counter,
83       Sub::HandlesVia::HandlerLibrary::Hash,
84       Sub::HandlesVia::HandlerLibrary::Number,
85       Sub::HandlesVia::HandlerLibrary::Scalar, and
86       Sub::HandlesVia::HandlerLibrary::String.
87

AUTHOR

89       Toby Inkster <tobyink@cpan.org>.
90

92       This software is copyright (c) 2022 by Toby Inkster.
93
94       This is free software; you can redistribute it and/or modify it under
95       the same terms as the Perl 5 programming language system itself.
96

DISCLAIMER OF WARRANTIES

98       THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
99       WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
100       MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
101
102
103
104perl v5.36.0                      2022S-u1b2:-:1H7andlesVia::Manual::WithObjectPad(3)
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