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1 | =head1 NAME |
2 | |
3 | MooseX::Types::Combine - Combine type libraries for exporting |
4 | |
5 | =cut |
6 | |
7 | package MooseX::Types::Combine; |
8 | |
9 | use strict; |
10 | use warnings; |
11 | use Class::MOP (); |
12 | |
13 | =head1 SYNOPSIS |
14 | |
15 | package CombinedTypeLib; |
16 | |
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17 | use base 'MooseX::Types::Combine'; |
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18 | |
19 | __PACKAGE__->provide_types_from(qw/TypeLib1 TypeLib2/); |
20 | |
21 | package UserClass; |
22 | |
23 | use CombinedTypeLib qw/Type1 Type2 ... /; |
24 | |
25 | =head1 DESCRIPTION |
26 | |
27 | Allows you to export types from multiple type libraries. |
28 | |
29 | Libraries on the right side of the type libs passed to L</provide_types_from> |
30 | take precedence over those on the left in case of conflicts. |
31 | |
32 | =cut |
33 | |
34 | sub import { |
35 | my ($class, @types) = @_; |
36 | my $caller = caller; |
37 | |
38 | my @type_libs = $class->provide_types_from; |
39 | Class::MOP::load_class($_) for @type_libs; |
40 | |
41 | my %types = map { |
42 | my $lib = $_; |
43 | map +($_ => $lib), $lib->type_names |
44 | } @type_libs; |
45 | |
46 | my %from; |
47 | push @{ $from{ $types{ $_ } } }, $_ for @types; |
48 | |
49 | $_->import({ -into => $caller }, @{ $from{ $_ } }) |
50 | for keys %from; |
51 | } |
52 | |
53 | =head1 CLASS METHODS |
54 | |
55 | =head2 provide_types_from |
56 | |
57 | Sets or returns a list of type libraries to re-export from. |
58 | |
59 | =cut |
60 | |
61 | sub provide_types_from { |
62 | my ($class, @libs) = @_; |
63 | |
64 | my $store = |
65 | do { no strict 'refs'; \@{ "${class}::__MOOSEX_TYPELIBRARY_LIBRARIES" } }; |
66 | |
67 | @$store = @libs if @libs; |
68 | |
69 | @$store; |
70 | } |
71 | |
72 | =head1 SEE ALSO |
73 | |
74 | L<MooseX::Types> |
75 | |
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76 | =head1 AUTHOR |
77 | |
78 | See L<MooseX::Types/AUTHOR>. |
79 | |
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80 | =head1 LICENSE |
81 | |
82 | This program is free software; you can redistribute it and/or modify |
83 | it under the same terms as perl itself. |
84 | |
85 | =cut |
86 | |
87 | 1; |