1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
=head1 NAME
MooseX::Types::Combine - Combine type libraries for exporting
=cut
package MooseX::Types::Combine;
our $VERSION = "0.22";
use strict;
use warnings;
use Class::MOP ();
=head1 SYNOPSIS
package CombinedTypeLib;
use base 'MooseX::Types::Combine';
__PACKAGE__->provide_types_from(qw/TypeLib1 TypeLib2/);
package UserClass;
use CombinedTypeLib qw/Type1 Type2 ... /;
=head1 DESCRIPTION
Allows you to export types from multiple type libraries.
Libraries on the right side of the type libs passed to L</provide_types_from>
take precedence over those on the left in case of conflicts.
=cut
sub import {
my ($class, @types) = @_;
my $caller = caller;
my @type_libs = $class->provide_types_from;
Class::MOP::load_class($_) for @type_libs;
my %types = map {
my $lib = $_;
map +($_ => $lib), $lib->type_names
} @type_libs;
my %from;
for my $type (@types) {
die
"$caller asked for a type ($type) which is not found in any of the"
. " type libraries (@type_libs) combined by $class\n"
unless $types{$type};
push @{ $from{ $types{$type} } }, $type;
}
$_->import({ -into => $caller }, @{ $from{ $_ } })
for keys %from;
}
=head1 CLASS METHODS
=head2 provide_types_from
Sets or returns a list of type libraries to re-export from.
=cut
sub provide_types_from {
my ($class, @libs) = @_;
my $store =
do { no strict 'refs'; \@{ "${class}::__MOOSEX_TYPELIBRARY_LIBRARIES" } };
@$store = @libs if @libs;
@$store;
}
=head1 SEE ALSO
L<MooseX::Types>
=head1 AUTHOR
See L<MooseX::Types/AUTHOR>.
=head1 LICENSE
This program is free software; you can redistribute it and/or modify
it under the same terms as perl itself.
=cut
1;
|
