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1 | |
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2 | package Moose::Meta::Attribute::Native::Trait::Hash; |
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3 | use Moose::Role; |
4 | |
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5 | our $VERSION = '0.89_01'; |
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6 | $VERSION = eval $VERSION; |
7 | our $AUTHORITY = 'cpan:STEVAN'; |
8 | |
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9 | use Moose::Meta::Attribute::Native::MethodProvider::Hash; |
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10 | |
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11 | with 'Moose::Meta::Attribute::Native::Trait'; |
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12 | |
13 | has 'method_provider' => ( |
14 | is => 'ro', |
15 | isa => 'ClassName', |
16 | predicate => 'has_method_provider', |
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17 | default => 'Moose::Meta::Attribute::Native::MethodProvider::Hash' |
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18 | ); |
19 | |
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20 | sub _helper_type { 'HashRef' } |
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21 | |
22 | no Moose::Role; |
23 | |
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24 | 1; |
25 | |
26 | __END__ |
27 | |
28 | =pod |
29 | |
30 | =head1 NAME |
31 | |
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32 | Moose::Meta::Attribute::Native::Trait::Hash |
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33 | |
34 | =head1 SYNOPSIS |
35 | |
36 | package Stuff; |
37 | use Moose; |
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38 | |
39 | has 'options' => ( |
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40 | traits => ['Hash'], |
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41 | is => 'ro', |
42 | isa => 'HashRef[Str]', |
43 | default => sub { {} }, |
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44 | handles => { |
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45 | set_option => 'set', |
46 | get_option => 'get', |
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47 | has_no_options => 'is_empty', |
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48 | num_options => 'count', |
49 | delete_option => 'delete', |
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50 | pairs => 'kv', |
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51 | }, |
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52 | ); |
53 | |
54 | =head1 DESCRIPTION |
55 | |
56 | This module provides a Hash attribute which provides a number of |
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57 | hash-like operations. |
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58 | |
59 | =head1 PROVIDED METHODS |
60 | |
61 | These methods are implemented in |
62 | L<Moose::Meta::Attribute::Native::MethodProvider::Hash>. |
63 | |
64 | =over 4 |
65 | |
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66 | =item B<get($key, $key2, $key3...)> |
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67 | |
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68 | Returns values from the hash. |
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69 | |
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70 | In list context return a list of values in the hash for the given keys. |
71 | In scalar context returns the value for the last key specified. |
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72 | |
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73 | =item B<set($key => $value, $key2 => $value2 ...)> |
74 | |
75 | Sets the elements in the hash to the given values. |
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76 | |
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77 | =item B<delete($key)> |
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78 | |
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79 | Removes the element with the given key. |
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80 | |
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81 | =item B<keys> |
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82 | |
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83 | Returns the list of keys in the hash. |
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84 | |
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85 | =item B<exists($key)> |
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86 | |
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87 | Returns true if the given key is present in the hash. |
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88 | |
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89 | =item B<defined($key)> |
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90 | |
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91 | Returns true if the value of a given key is defined. |
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92 | |
93 | =item B<values> |
94 | |
95 | Returns the list of values in the hash. |
96 | |
97 | =item B<kv> |
98 | |
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99 | Returns the key/value pairs in the hash as an array of array references. |
100 | |
101 | for my $pair ( $object->options->pairs ) { |
102 | print "$pair->[0] = $pair->[1]\n"; |
103 | } |
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104 | |
105 | =item B<elements> |
106 | |
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107 | Returns the key/value pairs in the hash as a flattened list.. |
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108 | |
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109 | =item B<clear> |
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110 | |
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111 | Resets the hash to an empty value, like C<%hash = ()>. |
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112 | |
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113 | =item B<count> |
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114 | |
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115 | Returns the number of elements in the hash. |
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116 | |
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117 | =item B<is_empty> |
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118 | |
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119 | If the hash is populated, returns false. Otherwise, returns true. |
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120 | |
121 | =item B<accessor> |
122 | |
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123 | If passed one argument, returns the value of the specified key. If passed two |
124 | arguments, sets the value of the specified key. |
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125 | |
126 | =back |
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127 | |
128 | =head1 METHODS |
129 | |
130 | =over 4 |
131 | |
132 | =item B<meta> |
133 | |
134 | =item B<method_provider> |
135 | |
136 | =item B<has_method_provider> |
137 | |
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138 | =back |
139 | |
140 | =head1 BUGS |
141 | |
142 | All complex software has bugs lurking in it, and this module is no |
143 | exception. If you find a bug please either email me, or add the bug |
144 | to cpan-RT. |
145 | |
146 | =head1 AUTHOR |
147 | |
148 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
149 | |
150 | =head1 COPYRIGHT AND LICENSE |
151 | |
152 | Copyright 2007-2009 by Infinity Interactive, Inc. |
153 | |
154 | L<http://www.iinteractive.com> |
155 | |
156 | This library is free software; you can redistribute it and/or modify |
157 | it under the same terms as Perl itself. |
158 | |
159 | =cut |