On Fri, Jun 06, 2025 at 07:27:56PM +0100, Gavin Smith wrote:
> Then I suspected something was strange with the way the data structures
> were constructed. I suspect it would be hard to replicate the loss without
> using XS.
After reading through "man perlref" again, I found the 'refaliasing' feature:
use strict;
use feature 'refaliasing';
my $hash = {'foo' => 34, 'bar' => 99};
warn $hash->{'foo'};
warn $hash->{'bar'};
\$hash->{'bar'} = \$hash->{'foo'};
warn "=>\n";
warn $hash->{'foo'};
warn $hash->{'bar'};
Output:
Aliasing via reference is experimental at test.pl line 9.
34 at test.pl line 6.
99 at test.pl line 7.
=>
34 at test.pl line 13.
34 at test.pl line 14.
This is very confusing, IMO, and not a feature that I can
see that would be useful for us.
