1MooseX::CoercePerAttribUusteer(3C)ontributed Perl DocumeMnotoasteiXo:n:CoercePerAttribute(3)
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NAME

6       MooseX::CoercePerAttribute - Define Coercions per attribute!
7

SYNOPSIS

9           use MooseX::CoercePerAttribute;
10
11           has foo => (isa => 'Str', is => 'ro', coerce => 1);
12           has bar => (
13               traits  => [CoercePerAttribute],
14               isa     => Bar,
15               is      => 'ro',
16               coerce  => [
17                   Str => sub {
18                       my ($value, $options);
19                       ...
20                   },
21                   Int => sub {
22                       my ($value, $options);
23                       ...
24                   },
25               ],
26           );
27
28           use Moose::Util::Types;
29
30           has baz => (
31               traits  => [CoercePerAttribute],
32               isa     => Baz,
33               is      => 'ro',
34               coerce  => [
35                   sub {
36                       coerce $_[0], from Str, via {}
37                       }]
38               );
39

DESCRIPTION

41       MooseX::CoercePerAttribute is a simple Moose Trait to allow you to
42       define inline coercions per attribute.
43
44       This module allows for coercions to be declared on a per attribute
45       bases. Accepting either an array of  Code refs of the coercion to be
46       run or an HashRef of various arguments to create a coercion routine
47       from.
48

USAGE

50       This trait allows you to declare a type coercion inline for an
51       attribute. The Role will create an __ANON__ sub TypeConstraint object
52       of the TypeConstraint in the attributes isa parameter. The type
53       coercion can be supplied in one of two methods. The coercion should be
54       supplied to the Moose Attribute coerce parameter.
55
56       1. The recomended usage is to supply a arrayref list declaring the
57       types to coerce from and a subref to be executed in pairs.
58           coerce => [$Fromtype1 => sub {}, $Fromtype2 => sub {}]
59
60       2. Alternatively you can supply and arrayref of coercion coderefs.
61       These should be in the same format as defined in
62       Moose::Util::TypeConstraints and will be passed the __ANON__ subtype as
63       its first argument. If you use this method then you will need to use
64       Moose::Util::TypeConstraints in you module.
65           coerce => [sub {coerce $_[0], from Str, via sub {} }]
66
67       NB: Moose handles its coercions as an array of possible coercions. This
68       means that it will use the first coercion in the list that matches the
69       criteria. In earlier versions of this module the coercions were
70       supplied as a HASHREF. This behaviour is deprecated and will be removed
71       in later versions as it creates an uncertainty over the order of usage.
72

AUTHOR

74       Mike Francis <ungrim97@gmail.com>
75

77       Copyright 2013- Mike Francis
78

LICENSE

80       This library is free software; you can redistribute it and/or modify it
81       under the same terms as Perl itself.
82

SUPPORT

84       You can find documentation for this module with the perldoc command.
85
86           perldoc MooseX::CoercePerAttribute
87
88       You can also look for information at:
89
90       •   RT: CPAN's request tracker (report bugs here)
91
92           <http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-CoercePerAttribute>
93
94       •   Meta CPAN
95
96           <https://metacpan.org/module/MooseX::CoercePerAttribute>
97
98       •   Search CPAN
99
100           <http://search.cpan.org/dist/MooseX-CoercePerAttribute/>
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104perl v5.34.0                      2021-07-22     MooseX::CoercePerAttribute(3)
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