1MooX::Types::MooseLike(U3s)er Contributed Perl DocumentatMiooonX::Types::MooseLike(3)
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6 MooX::Types::MooseLike - some Moosish types and a type builder
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9 package MyApp::Types;
10 use MooX::Types::MooseLike;
11 use base qw(Exporter);
12 our @EXPORT_OK = ();
13
14 # Define some types
15 my $defs = [{
16 name => 'MyType',
17 test => sub { predicate($_[0]) },
18 message => sub { "$_[0] is not the type we want!" }
19 },
20 {
21 name => 'VarChar',
22 test => sub {
23 my ($value, $param) = @_;
24 length($value) <= $param;
25 },
26 message => sub { "$_[0] is too large! It should be less than or equal to $_[1]." }
27 }];
28
29 # Make the types available - this adds them to @EXPORT_OK automatically.
30 MooX::Types::MooseLike::register_types($defs, __PACKAGE__);
31
32 ...
33
34 # Somewhere in code that uses the type
35 package MyApp::Foo;
36 use Moo;
37 use MyApp::Types qw(MyType VarChar);
38
39 has attribute => (
40 is => 'ro',
41 isa => MyType,
42 );
43
44 has string => (
45 is => 'ro',
46 isa => VarChar[25]
47 );
48
50 This module provides a possibility to build your own set of Moose-like
51 types. These custom types can then be used to describe fields in Moo-
52 based classes.
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54 See MooX::Types::MooseLike::Base for a list of available base types.
55 Its source also provides an example of how to build base types, along
56 with both parameterizable and non-parameterizable.
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59 register_types
60 register_types( types, package, moose_namespace )
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62 Install the given types within the package. This makes the types
63 automatically exportable by adding them to @EXPORT_OK of the package.
64 Types are expected to be an array ref where every type is of the
65 following format:
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67 {
68 name => 'MyType',
69 test => sub { check_the_value_somehow($_[0]) },
70 message => sub { "$_[0] is not the type we want!" },
71 subtype_of => 'SomeParentType', # Optional
72 from => 'Some::Parent::CoolTypes', # Optional
73 parameterizable => sub { ... }, # Optional
74 inflate => sub { ... }, # Optional
75 }
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77 A type can be declared with a reference (subtype_of) to some previously
78 declared type. In this case the new type will inherit the behaviour of
79 the referenced type.
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81 The referenced type can come either from the same package or from a
82 third party package:
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84 MooX::Types::MooseLike::register_types([{
85 name => 'GreaterThan10',
86 subtype_of => 'Int',
87 from => 'MooX::Types::MooseLike::Base',
88 test => sub { $_[0] > 10 },
89 message => sub { 'not greater than 10' },
90 }], __PACKAGE__);
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92 MooX::Types::MooseLike::register_types([{
93 name => 'Between10And20',
94 subtype_of => 'GreaterThan10',
95 from => __PACKAGE__,
96 test => sub { $_[0] < 20 },
97 message => sub { 'not an integer between 10 and 20' },
98 }], __PACKAGE__);
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100 MooX::Types::MooseLike::register_types([{
101 name => 'Between10And30',
102 subtype_of => GreaterThan10(),
103 test => sub { $_[0] < 30 },
104 message => sub { 'not an integer between 10 and 30' },
105 }], __PACKAGE__);
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107 exception_message
108 exception_message( value, part_of_the_exception_string )
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110 Helper function to be used in a type definition:
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112 {
113 ...
114 message => sub { return exception_message($_[0], 'a HashRef' },
115 ...
116 }
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118 In the event of <value> mismatching the type constraints it produces
119 the message:
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121 "<value> is not a HashRef!"
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123 inflate_type
124 inflate_type( coderef )
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126 Inflates the type to a Moose type. Requires Moose.
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129 MooX::Types::MooseLike::Numeric - an example of building subtypes.
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131 MooX::Types::SetObject - an example of building parameterized types.
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133 MooX::Types::MooseLike::Email, MooX::Types::MooseLike::DateTime
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135 Type::Tiny - another implementation of type constraints. Compatible
136 with Moo, Moose and Mouse.
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139 mateu - Mateu X. Hunter (cpan:MATEU) <hunter@missoula.org>
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142 mst - Matt S. Trout (cpan:MSTROUT) <mst@shadowcat.co.uk>
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144 Mithaldu - Christian Walde (cpan:MITHALDU)
145 <walde.christian@googlemail.com>
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147 Matt Phillips (cpan:MATTP) <mattp@cpan.org>
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149 Arthur Axel fREW Schmidt (cpan:FREW) <frioux@gmail.com>
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151 Toby Inkster (cpan:TOBYINK) <tobyink@cpan.org>
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153 Graham Knop (cpan:HAARG) <haarg@cpan.org>
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155 Dmitry Matrosov (cpan:AMIDOS) <amidos@amidos.ru>
156
158 Copyright (c) 2011-2015 the MooX::Types::MooseLike "AUTHOR" and
159 "CONTRIBUTORS" as listed above.
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162 This library is free software and may be distributed under the same
163 terms as perl itself.
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167perl v5.32.1 2021-01-27 MooX::Types::MooseLike(3)