Brothers!

I'm trying to understand how lexical filehandles are dumped:

>  perl
use Data::Dumper qw/Dumper/;
use Data::Dump;
open my $fh,"<",'/tmp/tst';
dd $fh;
dd $::{'$fh'};
print Dumper $fh;
__END__
\*main::$fh
undef
$VAR1 = \*{'::$fh'};

[download]

apparently $fh holds the ref to a glob named "\$fh" , i.e. with sigle as part of the name!

But inspecting the STASH doesn't show this entry...

I know that the common way to copy a bare filehandle to a scalar is my $fh=\*FH but this is confusing me.

Is this an implementation workaround or what am I missing?

edit

Just after posting I'm realizing that I may be inspecting the wrong ($ = scalar) slot of the $fh glob. I'll update further tests.

update

OK inspecting only the glob reveals it's existence in the stash:

dd *{'::$fh'};
# => *main::$fh

[download]

but I'm still a bit confused ...

So lexical file handles are implemented as hidden global stash entries, which are destroyed when the lexical var falls out of scope ?

Cheers Rolf

(addicted to the Perl Programming Language and ☆☆☆☆ :)

In reply to dumping lexical filehandles (updated) by LanX

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