1Specio::Exporter(3) User Contributed Perl Documentation Specio::Exporter(3)
2
3
4
6 Specio::Exporter - Base class for type libraries
7
9 version 0.48
10
12 package MyApp::Type::Library;
13
14 use parent 'Specio::Exporter';
15
16 use Specio::Declare;
17
18 declare( ... );
19
20 # more types here
21
22 package MyApp::Foo;
23
24 use MyApp::Type::Library
25
27 Inheriting from this package makes your package a type exporter. By
28 default, types defined in a package are never visible outside of the
29 package. When you inherit from this package, all the types you define
30 internally become available via exports.
31
32 The exported types are available through the importing package's "t"
33 subroutine.
34
35 By default, types your package imports are not re-exported:
36
37 package MyApp::Type::Library;
38
39 use parent 'Specio::Exporter';
40
41 use Specio::Declare;
42 use Specio::Library::Builtins;
43
44 In this case, the types provided by Specio::Library::Builtins are not
45 exported to packages which "use MyApp::Type::Library".
46
47 You can explicitly ask for types to be re-exported:
48
49 package MyApp::Type::Library;
50
51 use parent 'Specio::Exporter';
52
53 use Specio::Declare;
54 use Specio::Library::Builtins -reexport;
55
56 In this case, packages which "use MyApp::Type::Library" will get all
57 the types from Specio::Library::Builtins as well as any types defined
58 in "MyApp::Type::Library".
59
61 If you want to export some additional subroutines from a package which
62 has "Specio::Exporter" as its parent, define a sub named
63 "_also_export". This sub should return a list of subroutines defined in
64 your package that should also be exported. These subs will be exported
65 unconditionally to any package that uses your package.
66
68 You can combine loading libraries with subroutine generation using
69 Specio::Subs by using "_also_export" and
70 "Specio::Subs::subs_installed_into":
71
72 package My::Library;
73
74 use My::Library::Internal -reexport;
75 use Specio::Library::Builtins -reexport;
76 use Specio::Subs qw( My::Library::Internal Specio::Library::Builtins );
77
78 sub _also_export {
79 return Specio::Subs::subs_installed_into(__PACKAGE__);
80 }
81
83 Bugs may be submitted at
84 <https://github.com/houseabsolute/Specio/issues>.
85
87 The source code repository for Specio can be found at
88 <https://github.com/houseabsolute/Specio>.
89
91 Dave Rolsky <autarch@urth.org>
92
94 This software is Copyright (c) 2012 - 2022 by Dave Rolsky.
95
96 This is free software, licensed under:
97
98 The Artistic License 2.0 (GPL Compatible)
99
100 The full text of the license can be found in the LICENSE file included
101 with this distribution.
102
103
104
105perl v5.36.0 2023-01-20 Specio::Exporter(3)