1Sub::HandlesVia::DeclarUes(e3r)Contributed Perl DocumentSautbi:o:nHandlesVia::Declare(3)
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6 Sub::HandlesVia::Declare - declare delegations at compile-time
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9 use Sub::HandlesVia::Declare( $attr, $via => %delegations );
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11 This is roughly equivalent to the following:
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13 use Sub::HandlesVia qw(delegations);
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15 BEGIN {
16 delegations(
17 attribute => $attr,
18 handles_via => $via,
19 handles => \%delegations,
20 );
21 };
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23 Except it doesn't import the "delegations" function into your
24 namespace.
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27 Useful for Object::Pad and kind of nice for Class::Tiny. Basically any
28 class builder than does its stuff at compile time.
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30 Object::Pad
31 use Object::Pad;
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33 class Kitchen {
34 has @foods;
35 use Sub::HandlesVia::Declare '@foods', Array => (
36 all_foods => 'all',
37 add_food => 'push',
38 );
39 }
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41 If an attribute begins with a '@' or '%', $via can be omitted.
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43 use Object::Pad;
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45 class Kitchen {
46 has @foods;
47 use Sub::HandlesVia::Declare '@foods', (
48 all_foods => 'all',
49 add_food => 'push',
50 );
51 }
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53 Class::Tiny
54 package Kitchen;
55 use Class::Tiny {
56 foods => sub { [] },
57 drinks => sub { [ 'water' ] },
58 };
59 use Sub::HandlesVia::Declare 'foods', Array => (
60 all_foods => 'all',
61 add_food => 'push',
62 );
63 use Sub::HandlesVia::Declare 'drinks', Array => (
64 all_drinks => 'all',
65 add_drink => 'push',
66 );
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69 Please report any bugs to
70 <https://github.com/tobyink/p5-sub-handlesvia/issues>.
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73 Sub::HandlesVia.
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76 Toby Inkster <tobyink@cpan.org>.
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79 This software is copyright (c) 2022 by Toby Inkster.
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81 This is free software; you can redistribute it and/or modify it under
82 the same terms as the Perl 5 programming language system itself.
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85 THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
86 WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
87 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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91perl v5.36.0 2022-12-17 Sub::HandlesVia::Declare(3)