Commit | Line | Data |
e3c07b19 |
1 | package Moose::AttributeHelpers::MethodProvider::ImmutableHash; |
2 | use Moose::Role; |
3 | |
4 | our $VERSION = '0.19'; |
5 | $VERSION = eval $VERSION; |
6 | our $AUTHORITY = 'cpan:STEVAN'; |
7 | |
8 | sub exists : method { |
9 | my ($attr, $reader, $writer) = @_; |
10 | return sub { CORE::exists $reader->($_[0])->{$_[1]} ? 1 : 0 }; |
11 | } |
12 | |
13 | sub defined : method { |
14 | my ($attr, $reader, $writer) = @_; |
15 | return sub { CORE::defined $reader->($_[0])->{$_[1]} ? 1 : 0 }; |
16 | } |
17 | |
18 | sub get : method { |
19 | my ($attr, $reader, $writer) = @_; |
20 | return sub { |
21 | if ( @_ == 2 ) { |
22 | $reader->($_[0])->{$_[1]} |
23 | } else { |
24 | my ( $self, @keys ) = @_; |
25 | @{ $reader->($self) }{@keys} |
26 | } |
27 | }; |
28 | } |
29 | |
30 | sub keys : method { |
31 | my ($attr, $reader, $writer) = @_; |
32 | return sub { CORE::keys %{$reader->($_[0])} }; |
33 | } |
34 | |
35 | sub values : method { |
36 | my ($attr, $reader, $writer) = @_; |
37 | return sub { CORE::values %{$reader->($_[0])} }; |
38 | } |
39 | |
40 | sub kv : method { |
41 | my ($attr, $reader, $writer) = @_; |
42 | return sub { |
43 | my $h = $reader->($_[0]); |
44 | map { |
45 | [ $_, $h->{$_} ] |
46 | } CORE::keys %{$h} |
47 | }; |
48 | } |
49 | |
50 | sub elements : method { |
51 | my ($attr, $reader, $writer) = @_; |
52 | return sub { |
53 | my $h = $reader->($_[0]); |
54 | map { |
55 | $_, $h->{$_} |
56 | } CORE::keys %{$h} |
57 | }; |
58 | } |
59 | |
60 | sub count : method { |
61 | my ($attr, $reader, $writer) = @_; |
62 | return sub { scalar CORE::keys %{$reader->($_[0])} }; |
63 | } |
64 | |
65 | sub empty : method { |
66 | my ($attr, $reader, $writer) = @_; |
67 | return sub { scalar CORE::keys %{$reader->($_[0])} ? 1 : 0 }; |
68 | } |
69 | |
70 | 1; |
71 | |
72 | __END__ |
73 | |
74 | =pod |
75 | |
76 | =head1 NAME |
77 | |
78 | Moose::AttributeHelpers::MethodProvider::ImmutableHash |
79 | |
80 | =head1 DESCRIPTION |
81 | |
82 | This is a role which provides the method generators for |
83 | L<Moose::AttributeHelpers::Collection::ImmutableHash>. |
84 | |
85 | =head1 METHODS |
86 | |
87 | =over 4 |
88 | |
89 | =item B<meta> |
90 | |
91 | =back |
92 | |
93 | =head1 PROVIDED METHODS |
94 | |
95 | =over 4 |
96 | |
97 | =item B<count> |
98 | |
99 | Returns the number of elements in the list. |
100 | |
101 | =item B<empty> |
102 | |
103 | If the list is populated, returns true. Otherwise, returns false. |
104 | |
105 | =item B<exists> |
106 | |
107 | Returns true if the given key is present in the hash |
108 | |
109 | =item B<defined> |
110 | |
111 | Returns true if the value of a given key is defined |
112 | |
113 | =item B<get> |
114 | |
115 | Returns an element of the hash by its key. |
116 | |
117 | =item B<keys> |
118 | |
119 | Returns the list of keys in the hash. |
120 | |
121 | =item B<values> |
122 | |
123 | Returns the list of values in the hash. |
124 | |
125 | =item B<kv> |
126 | |
127 | Returns the key, value pairs in the hash as array references |
128 | |
129 | =item B<elements> |
130 | |
131 | Returns the key, value pairs in the hash as a flattened list |
132 | |
133 | =back |
134 | |
135 | =head1 BUGS |
136 | |
137 | All complex software has bugs lurking in it, and this module is no |
138 | exception. If you find a bug please either email me, or add the bug |
139 | to cpan-RT. |
140 | |
141 | =head1 AUTHOR |
142 | |
143 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
144 | |
145 | =head1 COPYRIGHT AND LICENSE |
146 | |
147 | Copyright 2007-2009 by Infinity Interactive, Inc. |
148 | |
149 | L<http://www.iinteractive.com> |
150 | |
151 | This library is free software; you can redistribute it and/or modify |
152 | it under the same terms as Perl itself. |
153 | |
154 | =cut |
155 | |