1Specio::Exporter(3) User Contributed Perl Documentation Specio::Exporter(3)
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6 Specio::Exporter - Base class for type libraries
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9 version 0.46
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12 package MyApp::Type::Library;
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14 use parent 'Specio::Exporter';
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16 use Specio::Declare;
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18 declare( ... );
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20 # more types here
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22 package MyApp::Foo;
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24 use MyApp::Type::Library
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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.
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32 The exported types are available through the importing package's "t"
33 subroutine.
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35 By default, types your package imports are not re-exported:
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37 package MyApp::Type::Library;
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39 use parent 'Specio::Exporter';
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41 use Specio::Declare;
42 use Specio::Library::Builtins;
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44 In this case, the types provided by Specio::Library::Builtins are not
45 exported to packages which "use MyApp::Type::Library".
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47 You can explicitly ask for types to be re-exported:
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49 package MyApp::Type::Library;
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51 use parent 'Specio::Exporter';
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53 use Specio::Declare;
54 use Specio::Library::Builtins -reexport;
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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".
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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.
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68 You can combine loading libraries with subroutine generation using
69 Specio::Subs by using "_also_export" and
70 "Specio::Subs::subs_installed_into":
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72 package My::Library;
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74 use My::Library::Internal -reexport;
75 use Specio::Library::Builtins -reexport;
76 use Specio::Subs qw( My::Library::Internal Specio::Library::Builtins );
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78 sub _also_export {
79 return Specio::Subs::subs_installed_into(__PACKAGE__);
80 }
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83 Bugs may be submitted at
84 <https://github.com/houseabsolute/Specio/issues>.
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86 I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".
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89 The source code repository for Specio can be found at
90 <https://github.com/houseabsolute/Specio>.
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93 Dave Rolsky <autarch@urth.org>
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96 This software is Copyright (c) 2012 - 2020 by Dave Rolsky.
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98 This is free software, licensed under:
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100 The Artistic License 2.0 (GPL Compatible)
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102 The full text of the license can be found in the LICENSE file included
103 with this distribution.
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107perl v5.32.0 2020-07-28 Specio::Exporter(3)