Definitely a bug. 

$ perl -c -we'my %f; my @a = @f{qw# a b #}'
Scalar value @f{qw# a b #} better written as $f{qw# a b #} at -e line 
+1.
-e syntax OK

[download]

Still warns at least as recently as v5.13.10.

It seems to only warn for some delimiters. 

$ perl -c -we'my %f; my @a = @f{qw( a b )}'
-e syntax OK

$ perl -c -we'my %f; my @a = @f{qw! a b !}'
-e syntax OK

$ perl -c -we'my %f; my @a = @f{qw# a b #}'
Scalar value @f{qw# a b #} better written as $f{qw# a b #} at -e line 
+1.
-e syntax OK

$ perl -c -we'my %f; my @a = @f{qw$ a b $}'
Scalar value @f{qw$ a b $} better written as $f{qw$ a b $} at -e line 
+1.
-e syntax OK

[download]

Created ticket RT#89294

In reply to Re: Incorrect warning when using hash slices? by ikegami
in thread Incorrect warning when using hash slices? by flipper

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