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=encoding utf-8
=for stopwords frobnicate greps regexps
=head1 NAME
Exporter::Tiny::Manual::Etc - odds and ends
=head1 DESCRIPTION
=head2 Utility Functions
Exporter::Tiny is itself an exporter!
These functions are really for internal use, but can be exported if you
need them:
=over
=item C<< mkopt(\@array) >>
Similar to C<mkopt> from L<Data::OptList>. It doesn't support all the
fancy options that Data::OptList does (C<moniker>, C<require_unique>,
C<must_be> and C<name_test>) but runs about 50% faster.
=item C<< mkopt_hash(\@array) >>
Similar to C<mkopt_hash> from L<Data::OptList>. See also C<mkopt>.
=back
=head2 History
L<Type::Library> had a bunch of custom exporting code which poked coderefs
into its caller's stash. It needed this to be something more powerful than
most exporters so that it could switch between exporting Moose, Mouse and
Moo-compatible objects on request. L<Sub::Exporter> would have been capable,
but had too many dependencies for the Type::Tiny project.
Meanwhile L<Type::Utils>, L<Types::TypeTiny> and L<Test::TypeTiny> each
used the venerable L<Exporter.pm|Exporter>. However, this meant they were
unable to use the features like L<Sub::Exporter>-style function renaming
which I'd built into Type::Library:
## import "Str" but rename it to "String".
use Types::Standard "Str" => { -as => "String" };
And so I decided to factor out code that could be shared by all Type-Tiny's
exporters into a single place: Exporter::TypeTiny.
As of version 0.026, Exporter::TypeTiny was also made available as
L<Exporter::Tiny>, distributed independently on CPAN. CHOCOLATEBOY had
convinced me that it was mature enough to live a life of its own.
As of version 0.030, Type-Tiny depends on Exporter::Tiny and
Exporter::TypeTiny is being phased out.
=head2 Obligatory Exporter Comparison
Exporting is unlikely to be your application's performance bottleneck, but
nonetheless here are some comparisons.
B<< Comparative sizes according to L<Devel::SizeMe>: >>
Exporter 217.1Kb
Sub::Exporter::Progressive 263.2Kb
Exporter::Tiny 267.7Kb
Exporter + Exporter::Heavy 281.5Kb
Exporter::Renaming 406.2Kb
Sub::Exporter 701.0Kb
B<< Performance exporting a single sub: >>
Rate SubExp ExpTiny SubExpProg ExpPM
SubExp 2489/s -- -56% -85% -88%
ExpTiny 5635/s 126% -- -67% -72%
SubExpProg 16905/s 579% 200% -- -16%
ExpPM 20097/s 707% 257% 19% --
(Exporter::Renaming globally changes the behaviour of Exporter.pm, so could
not be included in the same benchmarks.)
B<< (Non-Core) Dependencies: >>
Exporter -1
Exporter::Renaming 0
Exporter::Tiny 0
Sub::Exporter::Progressive 0
Sub::Exporter 3
B<< Features: >>
ExpPM ExpTiny SubExp SubExpProg
Can export code symbols............. Yes Yes Yes Yes
Can export non-code symbols......... Yes
Groups/tags......................... Yes Yes Yes Yes
Export by regexp.................... Yes Yes
Bang prefix......................... Yes Yes
Allows renaming of subs............. Yes Yes Maybe
Install code into scalar refs....... Yes Yes Maybe
Can be passed an "into" parameter... Yes Yes Maybe
Can be passed an "installer" sub.... Yes Yes Maybe
Config avoids package variables..... Yes
Supports generators................. Yes Yes
Sane API for generators............. Yes Yes
Unimport............................ Yes
(Certain Sub::Exporter::Progressive features are only available if
Sub::Exporter is installed.)
=head1 SEE ALSO
L<Exporter::Shiny>,
L<Exporter::Tiny>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014, 2017 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=head1 DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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