Are you sure? This does not work: 

print $a if ++$a for qw/x y w h/;

[download]

while this does work: 

do { print $a if ++$a } for qw/x y w h/;

[download]

(compare Syntax error in Nested for)

In reply to Re^3: Moose attribute predicate alternative by hdb
in thread Moose attribute predicate alternative by antmico

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