NAME
Require::Hook - Namespace for require() hooks
VERSION
This document describes version 0.002 of Require::Hook (from Perl
distribution Require-Hook), released on 2020-11-13.
DESCRIPTION
As one already understands, Perl lets you put coderefs or objects in
@INC as "hooks". This lets you do all sorts of things when it comes to
loading modules, for example:
* faking that a module does not exist when it does
This can be used for testing.
* loading module from various sources
You can load module source from the DATA section or variables, as is
done in a fatpacked script. Or you can retrieve module source from
CPAN so a script can magically run without installing extra CPAN
modules.
* munging source code
Like adding some Perl code before ("use strict;") or after, for
testing purpose or otherwise.
* decrypt from an ecrypted source
In the case of objects, perl will call your "INC" method. So this is how
you would write a module for a require hook:
package My::INCHandler;
sub new { ... }
sub My::INCHandler::INC {
my ($self, $filename) = @_;
...
}
1;
"Require::Hook" is just a namespace to put and share all your require
hooks.
HOMEPAGE
Please visit the project's homepage at
<https://metacpan.org/release/Require-Hook>.
SOURCE
Source repository is at
<https://github.com/perlancar/perl-Require-Hook>.
BUGS
Please report any bugs or feature requests on the bugtracker website
<https://rt.cpan.org/Public/Dist/Display.html?Name=Require-Hook>
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
"Require::Hook::*" modules.
Require::HookChain is another namespace for require hooks and also a way
to use "Require::Hook::*" modules.
RHC is a short alias for Require::HookChain for convenience in
one-liners.
AUTHOR
perlancar <perlancar@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2020, 2017 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.