Re: prevent stringification for hash-keys

[1nickt]

See the core module Hash::Util.

use strict;
use warnings;
use Hash::Util 'lock_keys';

my $key = 'foo';

lock_keys my %hash, ($key, 'bar');

$hash{$key}++;

$hash{'key'}++;

__END__

$ perl 1230007.pl
Attempt to access disallowed key 'key' in a restricted hash at 1230007
+.pl line 11.

Hope this helps!

[morgon]

That's sort of a solution, but I still would need to explicitely call lock_keys on every hash I use.

What I really want is a way to make $hash{bare_word} a compile-time error in a lexical scope...