Reputation: 853
I have the following project
$ tree
.
├── lib
│ └── MyModule.raku
└── main.raku
$ cat lib/MyModule.raku
use v6;
unit module MyModule;
sub hello { say 'hello' }
$ cat lib/main.raku
use v6;
use MyModule;
MyModule.hello();
I would like to run main.raku using the latest rakudo-star
image. However the following occurs
$ docker run -i --rm -u $(id -u) \
--workdir /work \
--volume $PWD:/work \
--entrypoint bash \
rakudo-star perl6 -I ./lib main.raku
===SORRY!===
Could not find MyModule at line 3 in:
file#/work/lib
inst#/.perl6
inst#/usr/share/perl6/site
inst#/usr/share/perl6/vendor
inst#/usr/share/perl6
ap#
nqp#
perl5#
I have also tried inserting use lib '/work/lib'
before use MyModule
in main.raku with the same result.
Upvotes: 8
Views: 694
Reputation: 34130
There are several problems.
Modules don't end with .raku
. They end with .rakumod
or .pm6
(for now).
(Technically after you install, it doesn't actually matter what the extension is as long as you have it properly declared in META6.json
.)
Subroutines are lexically scoped by default (my
), and are also not exported by default.
So there is no way to access hello()
outside of the module it is defined in.
Modules don't have methods, so you can't call hello
as a method.
Even if they did have methods they wouldn't start with the sub
keyword.
You can globally scope the subroutine with our
:
lib/MyModule.rakumod
use v6.d;
unit module MyModule;
our sub hello () { say 'hello' }
#^
# \
# globally scoped
main.raku
use v6.d;
# use lib './lib';
use module MyModule;
MyModule::hello();
# ^^
# \
# namespace delimiter
You could export it instead:
lib/MyModule.rakumod
use v6.d;
unit MyModule;
# mark for export
# v-------v
sub hello () is export {
say 'hello'
}
main.raku
use v6.d;
# use lib './lib';
use MyModule;
hello();
In addition to is export
, there are other more fine grained ways to export.
I would recommend that if you are going to export, that you also make it global with our
. That way if someone uses your module, but doesn't want to import your subs; they still have access to them.
Upvotes: 5
Reputation: 2288
New Raku versions uses the .rakumod
as file extension for modules. The older .pm6
extension is still supported. More information regarding the new file extensions can be found in the Path-to-Raku ticket. More information about modules is available in the raku documentation.
Upvotes: 5