CODEWITHSUNDEEP
importraku
sid_com
sid_com

Reputation: 25117

Perl6: implicit and explicit import

Is it possible to write a module in a way that when the module is used with no explicit import all subroutines are imported and when it is used with explicit import only theses explicit imported subroutines are available?

#!/usr/bin/env perl6
use v6;
use Bar::Foo;

# all subroutines are imported
sub-one();
sub-two();
sub-three();

#!/usr/bin/env perl6
use v6;
use Bar::Foo :sub-one, :sub-two;

sub-one();
sub-two();
# sub-three not imported

Upvotes: 6

Views: 178

Answers (1)

Christoph
Christoph

Reputation: 169623

Give your subs both the special label :DEFAULT as well as a dedicated one when exporting, eg

unit module Bar;
sub one is export(:DEFAULT, :one) { say "one" }
sub two is export(:DEFAULT, :two) { say "two" }

Now, you can import all of them with a plain use Bar, or can select specific ones via use Bar :one;

Upvotes: 9

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