Re^5: XML::Writer oddness

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Re^6: XML::Writer oddness by TedHopp (Novice) on Feb 25, 2010 at 20:03 UTC
Indeed it does. That leads me to wander off topic. I had tried `$doc = "$doc";`, which was close but does not work. Even this does not work: `my $copy = $doc; undef *doc; $doc = $copy;` [download] After that, `$doc` is still a blessed object (although `$copy` isn't). From this, I conclude that I don't understand symbol tables. Why doesn't it work to `undef` everything about `$doc`? (For that matter, why isn't `$copy` a blessed object?) Is there a way to "unbless" `$doc` and to remove its object flag after it has been mucked with by XML::Writer?	[reply] [d/l] [select]
Re^7: XML::Writer oddness by shmem (Chancellor) on Feb 25, 2010 at 22:35 UTC
After that, $doc is still a blessed object (although $copy isn't). In the OP, you have `$doc` declared as my variable, so fiddling around with the symbol table doesn't do anything to `my $doc`.	[reply] [d/l] [select]
Re^7: XML::Writer oddness by ikegami (Patriarch) on Feb 25, 2010 at 23:37 UTC
`my` has Perl use a lexically scoped variable instead of global package variables. Freeing the similar named package variable does not affect the lexical. There doesn't seem to be anyway to unbless in Perl's API.	[reply] [d/l]