3 MooseX::Types::Combine - Combine type libraries for exporting
7 package MooseX::Types::Combine;
16 package CombinedTypeLib;
18 use base 'MooseX::Types::Combine';
20 __PACKAGE__->provide_types_from(qw/TypeLib1 TypeLib2/);
24 use CombinedTypeLib qw/Type1 Type2 ... /;
28 Allows you to export types from multiple type libraries.
30 Libraries on the right side of the type libs passed to L</provide_types_from>
31 take precedence over those on the left in case of conflicts.
36 my ($class, @types) = @_;
39 my %types = $class->_provided_types;
42 for my $type (@types) {
43 unless ($types{$type}) {
44 my @type_libs = $class->provide_types_from;
47 "$caller asked for a type ($type) which is not found in any of the"
48 . " type libraries (@type_libs) combined by $class\n";
51 push @{ $from{ $types{$type} } }, $type;
54 $_->import({ -into => $caller }, @{ $from{ $_ } })
60 =head2 provide_types_from
62 Sets or returns a list of type libraries to re-export from.
66 sub provide_types_from {
67 my ($class, @libs) = @_;
70 do { no strict 'refs'; \@{ "${class}::__MOOSEX_TYPELIBRARY_LIBRARIES" } };
73 $class->_check_type_lib($_) for @libs;
78 map +( $_ => $lib ), $lib->type_names
81 $class->_provided_types(%types);
88 my ($class, $lib) = @_;
90 Class::MOP::load_class($lib);
92 die "Cannot use $lib in a combined type library, it does not provide any types"
93 unless $lib->can('type_names');
97 my ($class, %types) = @_;
100 do { no strict 'refs'; \%{ "${class}::__MOOSEX_TYPELIBRARY_TYPES" } };
114 See L<MooseX::Types/AUTHOR>.
118 This program is free software; you can redistribute it and/or modify
119 it under the same terms as perl itself.