In situations like this, B::Deparse (a core module) often helps: 
$ perl -MO=Deparse foo.pl
sub c1 {
    my($a, $b) = @_;
    not $b if $a;
}
sub c2 {
    my($a, $b) = @_;
    not $b if return $a;
}
foo.pl syntax OK

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Perl 6 - second systems done right

In reply to Re: To return and/or not? by moritz
in thread To return and/or not? by Anonymous Monk

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