use v6-alpha; use Test; # L # (This is an an "update" section.) plan 2; class Foo { method no_topic { $_.echo } method topic ($_: ) { $_.echo } method echo { "echo" } } { my Foo $foo .= new; dies_ok { $foo.no_topic() }, '$_ is not set in methods...', :todo; } { my Foo $foo .= new; is $foo.topic(), "echo", '...unless $_ the invocant name is specified to be "$_"'; }