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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 = '1.15'; |
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6 | $VERSION = eval $VERSION; |
7 | our $AUTHORITY = 'cpan:STEVAN'; |
8 | |
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9 | use Moose::Meta::Method::Accessor::Native::Hash::accessor; |
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10 | use Moose::Meta::Method::Accessor::Native::Hash::clear; |
11 | use Moose::Meta::Method::Accessor::Native::Hash::count; |
12 | use Moose::Meta::Method::Accessor::Native::Hash::defined; |
13 | use Moose::Meta::Method::Accessor::Native::Hash::delete; |
14 | use Moose::Meta::Method::Accessor::Native::Hash::elements; |
15 | use Moose::Meta::Method::Accessor::Native::Hash::exists; |
16 | use Moose::Meta::Method::Accessor::Native::Hash::get; |
17 | use Moose::Meta::Method::Accessor::Native::Hash::is_empty; |
18 | use Moose::Meta::Method::Accessor::Native::Hash::keys; |
19 | use Moose::Meta::Method::Accessor::Native::Hash::kv; |
20 | use Moose::Meta::Method::Accessor::Native::Hash::set; |
21 | use Moose::Meta::Method::Accessor::Native::Hash::values; |
22 | |
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23 | with 'Moose::Meta::Attribute::Native::Trait'; |
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24 | |
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25 | sub _helper_type { 'HashRef' } |
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26 | |
27 | no Moose::Role; |
28 | |
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29 | 1; |
30 | |
31 | __END__ |
32 | |
33 | =pod |
34 | |
35 | =head1 NAME |
36 | |
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37 | Moose::Meta::Attribute::Native::Trait::Hash - Helper trait for HashRef attributes |
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38 | |
39 | =head1 SYNOPSIS |
40 | |
41 | package Stuff; |
42 | use Moose; |
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43 | |
44 | has 'options' => ( |
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45 | traits => ['Hash'], |
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46 | is => 'ro', |
47 | isa => 'HashRef[Str]', |
48 | default => sub { {} }, |
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49 | handles => { |
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50 | set_option => 'set', |
51 | get_option => 'get', |
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52 | has_no_options => 'is_empty', |
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53 | num_options => 'count', |
54 | delete_option => 'delete', |
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55 | option_pairs => 'kv', |
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56 | }, |
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57 | ); |
58 | |
59 | =head1 DESCRIPTION |
60 | |
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61 | This trait provides native delegation methods for array references. |
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62 | |
63 | =head1 PROVIDED METHODS |
64 | |
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65 | =over 4 |
66 | |
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67 | =item B<get($key, $key2, $key3...)> |
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68 | |
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69 | Returns values from the hash. |
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70 | |
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71 | In list context it returns a list of values in the hash for the given keys. In |
72 | scalar context it returns the value for the last key specified. |
73 | |
74 | This method requires at least one argument. |
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75 | |
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76 | =item B<set($key =E<gt> $value, $key2 =E<gt> $value2...)> |
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77 | |
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78 | Sets the elements in the hash to the given values. It returns the new values |
79 | set for each key, in the same order as the keys passed to the method. |
80 | |
81 | This method requires at least two arguments, and expects an even number of |
82 | arguments. |
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83 | |
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84 | =item B<delete($key, $key2, $key3...)> |
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85 | |
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86 | Removes the elements with the given keys. |
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87 | |
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88 | In list context it returns a list of values in the hash for the deleted |
89 | keys. In scalar context it returns the value for the last key specified. |
90 | |
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91 | =item B<keys> |
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92 | |
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93 | Returns the list of keys in the hash. |
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94 | |
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95 | This method does not accept any arguments. |
96 | |
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97 | =item B<exists($key)> |
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98 | |
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99 | Returns true if the given key is present in the hash. |
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100 | |
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101 | This method requires a single argument. |
102 | |
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103 | =item B<defined($key)> |
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104 | |
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105 | Returns true if the value of a given key is defined. |
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106 | |
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107 | This method requires a single argument. |
108 | |
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109 | =item B<values> |
110 | |
111 | Returns the list of values in the hash. |
112 | |
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113 | This method does not accept any arguments. |
114 | |
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115 | =item B<kv> |
116 | |
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117 | Returns the key/value pairs in the hash as an array of array references. |
118 | |
119 | for my $pair ( $object->options->pairs ) { |
120 | print "$pair->[0] = $pair->[1]\n"; |
121 | } |
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122 | |
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123 | This method does not accept any arguments. |
124 | |
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125 | =item B<elements> |
126 | |
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127 | Returns the key/value pairs in the hash as a flattened list.. |
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128 | |
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129 | This method does not accept any arguments. |
130 | |
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131 | =item B<clear> |
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132 | |
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133 | Resets the hash to an empty value, like C<%hash = ()>. |
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134 | |
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135 | This method does not accept any arguments. |
136 | |
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137 | =item B<count> |
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138 | |
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139 | Returns the number of elements in the hash. Also useful for not empty: |
140 | C<< has_options => 'count' >>. |
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141 | |
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142 | This method does not accept any arguments. |
143 | |
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144 | =item B<is_empty> |
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145 | |
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146 | If the hash is populated, returns false. Otherwise, returns true. |
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147 | |
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148 | This method does not accept any arguments. |
149 | |
150 | =item B<accessor($key)> |
151 | |
152 | =item B<accessor($key, $value)> |
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153 | |
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154 | If passed one argument, returns the value of the specified key. If passed two |
155 | arguments, sets the value of the specified key. |
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156 | |
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157 | When called as a setter, this method returns the value that was set. |
158 | |
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159 | =back |
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160 | |
161 | =head1 METHODS |
162 | |
163 | =over 4 |
164 | |
165 | =item B<meta> |
166 | |
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167 | =back |
168 | |
169 | =head1 BUGS |
170 | |
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171 | See L<Moose/BUGS> for details on reporting bugs. |
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172 | |
173 | =head1 AUTHOR |
174 | |
175 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
176 | |
177 | =head1 COPYRIGHT AND LICENSE |
178 | |
179 | Copyright 2007-2009 by Infinity Interactive, Inc. |
180 | |
181 | L<http://www.iinteractive.com> |
182 | |
183 | This library is free software; you can redistribute it and/or modify |
184 | it under the same terms as Perl itself. |
185 | |
186 | =cut |