Commit | Line | Data |
7a603ffa |
1 | package MooseX::AlwaysCoerce; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
ad1917d7 |
6 | use namespace::autoclean; |
7 | use Moose (); |
2429fb7e |
8 | use MooseX::ClassAttribute (); |
ad1917d7 |
9 | use Moose::Exporter; |
2429fb7e |
10 | use Moose::Util::MetaRole; |
ad1917d7 |
11 | use Carp; |
12 | |
2429fb7e |
13 | Moose::Exporter->setup_import_methods; |
ad1917d7 |
14 | |
7a603ffa |
15 | =head1 NAME |
16 | |
17 | MooseX::AlwaysCoerce - Automatically enable coercions for Moose attributes |
18 | |
19 | =head1 VERSION |
20 | |
6f5c1d84 |
21 | Version 0.16 |
7a603ffa |
22 | |
23 | =cut |
24 | |
6f5c1d84 |
25 | our $VERSION = '0.16'; |
7a603ffa |
26 | |
27 | =head1 SYNOPSIS |
28 | |
29 | package MyClass; |
30 | |
31 | use Moose; |
32 | use MooseX::AlwaysCoerce; |
33 | use MyTypeLib 'SomeType'; |
34 | |
ad1917d7 |
35 | has foo => (is => 'rw', isa => SomeType); # coerce => 1 automatically added |
36 | |
2429fb7e |
37 | # same, MooseX::ClassAttribute is automatically applied |
ad1917d7 |
38 | class_has bar => (is => 'rw', isa => SomeType); |
39 | |
40 | =head1 DESCRIPTION |
41 | |
42 | Have you ever spent an hour or more trying to figure out "WTF, why did my |
43 | coercion not run?" only to find out that you forgot C<< coerce => 1 >> ? |
44 | |
45 | Just load this module in your L<Moose> class and C<< coerce => 1 >> will be |
2429fb7e |
46 | enabled for every attribute and class attribute automatically. |
ad1917d7 |
47 | |
44b44091 |
48 | Use C<< coerce => 0 >> to disable a coercion explicitly. |
49 | |
ad1917d7 |
50 | =cut |
51 | |
2429fb7e |
52 | { |
53 | package MooseX::AlwaysCoerce::Role::Meta::Attribute; |
54 | use namespace::autoclean; |
55 | use Moose::Role; |
56 | |
62e7cdef |
57 | around should_coerce => sub { |
58 | my $orig = shift; |
59 | my $self = shift; |
60 | |
61 | my $current_val = $self->$orig(@_); |
b058bf61 |
62 | |
90d2721a |
63 | return $current_val if defined $current_val; |
64 | |
bb7cca58 |
65 | return 1 if $self->type_constraint && $self->type_constraint->has_coercion; |
62e7cdef |
66 | return 0; |
67 | }; |
2429fb7e |
68 | |
69 | package MooseX::AlwaysCoerce::Role::Meta::Class; |
70 | use namespace::autoclean; |
71 | use Moose::Role; |
b058bf61 |
72 | use Moose::Util::TypeConstraints; |
2429fb7e |
73 | |
74 | around add_class_attribute => sub { |
75 | my $next = shift; |
76 | my $self = shift; |
44b44091 |
77 | my ($what, %opts) = @_; |
78 | |
bb7cca58 |
79 | if (exists $opts{isa}) { |
80 | my $type = Moose::Util::TypeConstraints::find_or_parse_type_constraint($opts{isa}); |
81 | $opts{coerce} = 1 if not exists $opts{coerce} and $type->has_coercion; |
82 | } |
44b44091 |
83 | |
84 | $self->$next($what, %opts); |
e6737767 |
85 | }; |
ad1917d7 |
86 | } |
87 | |
e307e391 |
88 | my (undef, undef, $init_meta) = Moose::Exporter->build_import_methods( |
a193e05d |
89 | |
e307e391 |
90 | install => [ qw(import unimport) ], |
a193e05d |
91 | |
e307e391 |
92 | class_metaroles => { |
93 | attribute => ['MooseX::AlwaysCoerce::Role::Meta::Attribute'], |
94 | class => ['MooseX::AlwaysCoerce::Role::Meta::Class'], |
95 | }, |
a193e05d |
96 | |
62e7cdef |
97 | role_metaroles => { |
4fb8b2bf |
98 | (Moose->VERSION >= 1.9900 |
99 | ? (applied_attribute => ['MooseX::AlwaysCoerce::Role::Meta::Attribute']) |
100 | : ()), |
62e7cdef |
101 | role => ['MooseX::AlwaysCoerce::Role::Meta::Class'], |
102 | } |
e307e391 |
103 | ); |
104 | |
2429fb7e |
105 | sub init_meta { |
e307e391 |
106 | my ($class, %options) = @_; |
2429fb7e |
107 | my $for_class = $options{for_class}; |
108 | |
62e7cdef |
109 | MooseX::ClassAttribute->import({ into => $for_class }); |
2429fb7e |
110 | |
e307e391 |
111 | # call generated method to do the rest of the work. |
112 | goto $init_meta; |
ad1917d7 |
113 | } |
7a603ffa |
114 | |
115 | =head1 AUTHOR |
116 | |
117 | Rafael Kitover, C<< <rkitover at cpan.org> >> |
118 | |
6b46d35c |
119 | =head1 CONTRIBUTORS |
120 | |
121 | Schwern: Michael G. Schwern <mschwern@cpan.org> |
e307e391 |
122 | Ether: Karen Etheridge <ether@cpan.org> |
6b46d35c |
123 | |
7a603ffa |
124 | =head1 BUGS |
125 | |
126 | Please report any bugs or feature requests to C<bug-moosex-alwayscoerce at rt.cpan.org>, or through |
127 | the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-AlwaysCoerce>. I will be notified, and then you'll |
128 | automatically be notified of progress on your bug as I make changes. |
129 | |
130 | =head1 SUPPORT |
131 | |
132 | You can find more information at: |
133 | |
134 | =over 4 |
135 | |
136 | =item * RT: CPAN's request tracker |
137 | |
138 | L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-AlwaysCoerce> |
139 | |
140 | =item * AnnoCPAN: Annotated CPAN documentation |
141 | |
142 | L<http://annocpan.org/dist/MooseX-AlwaysCoerce> |
143 | |
144 | =item * CPAN Ratings |
145 | |
146 | L<http://cpanratings.perl.org/d/MooseX-AlwaysCoerce> |
147 | |
148 | =item * Search CPAN |
149 | |
150 | L<http://search.cpan.org/dist/MooseX-AlwaysCoerce/> |
151 | |
152 | =back |
153 | |
154 | =head1 ACKNOWLEDGEMENTS |
155 | |
156 | My own stupidity, for inspiring me to write this module. |
157 | |
2429fb7e |
158 | Dave Rolsky, for telling me how to do it the L<Moose> way. |
159 | |
7a603ffa |
160 | =head1 COPYRIGHT & LICENSE |
161 | |
dd11ea45 |
162 | Copyright (c) 2009-2010 Rafael Kitover |
7a603ffa |
163 | |
164 | This program is free software; you can redistribute it and/or modify it |
165 | under the same terms as Perl itself. |
166 | |
167 | =cut |
168 | |
169 | 1; # End of MooseX::AlwaysCoerce |
bb7cca58 |
170 | # vim:et sts=4 sw=4 tw=0: |