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1 | package MooseX::AttributeHelpers::MethodProvider::Array; |
2 | use Moose::Role; |
3 | |
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4 | our $VERSION = '0.13'; |
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5 | our $AUTHORITY = 'cpan:STEVAN'; |
6 | |
7 | with 'MooseX::AttributeHelpers::MethodProvider::List'; |
8 | |
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9 | sub push : method { |
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10 | my ($attr, $reader, $writer) = @_; |
11 | |
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12 | if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) { |
13 | my $container_type_constraint = $attr->type_constraint->type_parameter; |
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14 | return sub { |
15 | my $instance = CORE::shift; |
16 | $container_type_constraint->check($_) |
17 | || confess "Value " . ($_||'undef') . " did not pass container type constraint" |
18 | foreach @_; |
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19 | CORE::push @{$reader->($instance)} => @_; |
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20 | }; |
21 | } |
22 | else { |
23 | return sub { |
24 | my $instance = CORE::shift; |
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25 | CORE::push @{$reader->($instance)} => @_; |
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26 | }; |
27 | } |
28 | } |
29 | |
30 | sub pop : method { |
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31 | my ($attr, $reader, $writer) = @_; |
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32 | return sub { |
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33 | CORE::pop @{$reader->($_[0])} |
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34 | }; |
35 | } |
36 | |
37 | sub unshift : method { |
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38 | my ($attr, $reader, $writer) = @_; |
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39 | if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) { |
40 | my $container_type_constraint = $attr->type_constraint->type_parameter; |
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41 | return sub { |
42 | my $instance = CORE::shift; |
43 | $container_type_constraint->check($_) |
44 | || confess "Value " . ($_||'undef') . " did not pass container type constraint" |
45 | foreach @_; |
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46 | CORE::unshift @{$reader->($instance)} => @_; |
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47 | }; |
48 | } |
49 | else { |
50 | return sub { |
51 | my $instance = CORE::shift; |
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52 | CORE::unshift @{$reader->($instance)} => @_; |
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53 | }; |
54 | } |
55 | } |
56 | |
57 | sub shift : method { |
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58 | my ($attr, $reader, $writer) = @_; |
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59 | return sub { |
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60 | CORE::shift @{$reader->($_[0])} |
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61 | }; |
62 | } |
63 | |
64 | sub get : method { |
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65 | my ($attr, $reader, $writer) = @_; |
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66 | return sub { |
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67 | $reader->($_[0])->[$_[1]] |
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68 | }; |
69 | } |
70 | |
71 | sub set : method { |
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72 | my ($attr, $reader, $writer) = @_; |
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73 | if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) { |
74 | my $container_type_constraint = $attr->type_constraint->type_parameter; |
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75 | return sub { |
76 | ($container_type_constraint->check($_[2])) |
77 | || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint"; |
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78 | $reader->($_[0])->[$_[1]] = $_[2] |
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79 | }; |
80 | } |
81 | else { |
82 | return sub { |
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83 | $reader->($_[0])->[$_[1]] = $_[2] |
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84 | }; |
85 | } |
86 | } |
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87 | |
88 | sub clear : method { |
89 | my ($attr, $reader, $writer) = @_; |
90 | return sub { |
91 | @{$reader->($_[0])} = () |
92 | }; |
93 | } |
94 | |
95 | sub delete : method { |
96 | my ($attr, $reader, $writer) = @_; |
97 | return sub { |
98 | CORE::splice @{$reader->($_[0])}, $_[1], 1; |
99 | } |
100 | } |
101 | |
102 | sub insert : method { |
103 | my ($attr, $reader, $writer) = @_; |
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104 | if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) { |
105 | my $container_type_constraint = $attr->type_constraint->type_parameter; |
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106 | return sub { |
107 | ($container_type_constraint->check($_[2])) |
108 | || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint"; |
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109 | CORE::splice @{$reader->($_[0])}, $_[1], 0, $_[2]; |
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110 | }; |
111 | } |
112 | else { |
113 | return sub { |
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114 | CORE::splice @{$reader->($_[0])}, $_[1], 0, $_[2]; |
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115 | }; |
116 | } |
117 | } |
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118 | |
119 | sub splice : method { |
120 | my ($attr, $reader, $writer) = @_; |
121 | if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) { |
122 | my $container_type_constraint = $attr->type_constraint->type_parameter; |
123 | return sub { |
124 | my ( $self, $i, $j, @elems ) = @_; |
125 | ($container_type_constraint->check($_)) |
126 | || confess "Value " . (defined($_) ? $_ : 'undef') . " did not pass container type constraint" for @elems; |
127 | CORE::splice @{$self->$reader()}, $i, $j, @elems; |
128 | }; |
129 | } |
130 | else { |
131 | return sub { |
132 | my ( $self, $i, $j, @elems ) = @_; |
133 | CORE::splice @{$self->$reader()}, $i, $j, @elems; |
134 | }; |
135 | } |
136 | } |
137 | |
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138 | 1; |
139 | |
140 | __END__ |
141 | |
142 | =pod |
143 | |
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144 | =head1 NAME |
145 | |
146 | MooseX::AttributeHelpers::MethodProvider::Array |
147 | |
148 | =head1 DESCRIPTION |
149 | |
150 | This is a role which provides the method generators for |
151 | L<MooseX::AttributeHelpers::Collection::Array>. |
152 | |
153 | =head1 METHODS |
154 | |
155 | =over 4 |
156 | |
157 | =item B<meta> |
158 | |
159 | =back |
160 | |
161 | =head1 PROVIDED METHODS |
162 | |
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163 | This module also consumes the B<List> method providers, to |
164 | see those provied methods, refer to that documentation. |
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165 | |
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166 | =over 4 |
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167 | |
168 | =item B<get> |
169 | |
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170 | =item B<pop> |
171 | |
172 | =item B<push> |
173 | |
174 | =item B<set> |
175 | |
176 | =item B<shift> |
177 | |
178 | =item B<unshift> |
179 | |
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180 | =item B<clear> |
181 | |
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182 | =item B<delete> |
183 | |
184 | =item B<insert> |
185 | |
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186 | =item B<splice> |
187 | |
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188 | =back |
189 | |
190 | =head1 BUGS |
191 | |
192 | All complex software has bugs lurking in it, and this module is no |
193 | exception. If you find a bug please either email me, or add the bug |
194 | to cpan-RT. |
195 | |
196 | =head1 AUTHOR |
197 | |
198 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
199 | |
200 | =head1 COPYRIGHT AND LICENSE |
201 | |
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202 | Copyright 2007-2008 by Infinity Interactive, Inc. |
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203 | |
204 | L<http://www.iinteractive.com> |
205 | |
206 | This library is free software; you can redistribute it and/or modify |
207 | it under the same terms as Perl itself. |
208 | |
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209 | =cut |