BEGIN { given '/tmp/z4223/'.IO.mkdir { .add('Foo.pm6').spurt: ｢class Foo { has $.bar where do require ::('Bar') }｣; .add('Bar.pm6').spurt: ｢use Foo; class Bar { has Foo $.foo }｣ }; use lib '/tmp/z4223'; use Bar; use Foo; Foo.new: :bar(Bar)