NAME

subroutines - Use subroutines from another module

VERSION

This document describes version 0.001 of subroutines (from Perl distribution subroutines), released on 2018-12-15.

SYNOPSIS

 package Your::Module;
 use subroutines 'Another::Module';

To avoid require()-ing:

 use subroutines '-norequire', 'Another::Module';

DESCRIPTION

This pragma declares routines in your module that are copied from another module.

 package Your::Module;
 use subroutines 'Another::Module';

is equivalent to this pseudo-code:

 package Your::Module;
 BEGIN {
     require Another::Module;
     for my $name (all_subroutines_in("Another::Module")) {
         *{"Your::Module::$name"} = \&{"Another::Module::$name"};
     }
 }

This is a form of code reuse when you cannot do:

 package Your::Module;
 use parent 'Another::Module';

because the original subroutines do not expect to be called as methods, and/or when your subroutines are not called as methods.

Another alternative is to declare "Your::Module" as an alias of "Another::Module", e.g. using alias::module.

 package Your::Module;
 use alias::module 'Another::Module';

but this copies everythng, not just subroutines.

HOMEPAGE

Please visit the project's homepage at <https://metacpan.org/release/subroutines>.

SOURCE

Source repository is at <https://github.com/perlancar/perl-subroutines>.

BUGS

Please report any bugs or feature requests on the bugtracker website <https://rt.cpan.org/Public/Dist/Display.html?Name=subroutines>

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

SEE ALSO

alias::module

parent, base

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2018 by perlancar@cpan.org.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.