Multiple MAIN signatures

Question

I have a package with multiple main and I want to define several options:

My code is something like this:

package Perl6::Documentable::CLI {
    prot         


        

Answer 1

The simplest solution would be to export the dynamic variable %*SUB-MAIN-OPTS, but that is still Not Yet Implemented completely: the export works sorta, but winds up being an empty hash. So not very useful.

Rakudo will call a subroutine called RUN-MAIN when it decides there is a MAIN sub to be run. You can actually export a RUN-MAIN from your module, and set up the dynamic variable, and then call the original RUN-MAIN:

sub RUN-MAIN(|c) is export {
    my %*SUB-MAIN-OPTS = :named-anywhere;
    CORE::<&RUN-MAIN>(|c)
}

For more information about RUN-MAIN, see: https://docs.raku.org/language/create-cli#index-entry-RUN-MAIN