in reply to Re^3: use feature 'postderef'; # Postfix Dereference Syntax is coming in 5.20
in thread use feature 'postderef'; # Postfix Dereference Syntax is coming in 5.20
How does that answers if $r->@* is valid?
It doesn't, it answers only the question I understood Why is the second arrow necessary in $r->->@*?
I've no idea if $r->@* I usually don't run development builds of perl
From the documentation I would guess the answer is no, but the test suite might be more revealing https://metacpan.org/source/SHAY/perl-5.19.5/t/op/postfixderef.t ; short look, looks like answer is no