Re^4: Array dereference in foreach()

in reply to Re^3: Array dereference in foreach()
in thread Array dereference in foreach()

Thank you to for your detailed explanation. That makes sense. However I found another interesting feature.

my $h;
my $g;

$h->{abc} = $g->{lkj};

print "h: ", Dumper(\$h), "\n";
print "g: ", Dumper(\$g), "\n";
[download]

and the output is

h: $VAR1 = \{
            'abc' => undef
          };

g: $VAR1 = \{};
[download]

The left side ($h) is autovivified and undef is assigned to key 'abc'. It is correct. But what has happened on the right? Is it semi-autovivified or what? Empty anonymous hashref is assigned to $g. Where is 'lkj'? Is $g->{lkj} in lvalue context? Why there is no exception?

Regards

In Section Seekers of Perl Wisdom