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Re^2: Preventing autovivification while accessing value

by naikonta (Curate)
on Jan 28, 2008 at 17:04 UTC ( #664707=note: print w/replies, xml ) Need Help??


in reply to Re: Preventing autovivification while accessing value
in thread Preventing autovivification while accessing value

Very nice! Thanks lidden :-)

I have a test script for is_hash() subroutine, the test fails (on purpose) on the latest (17th) test. As soon as I read your reply, I stopped my search on the list resulted from i /^data::/, and run install Data::Diver. I then copied my test script (cp autovivification.pl data-diver.pl), and adjusted some lines. I run both test scripts in sequence to find exactly the same result.

1..17 ok 1 - id_2 is not supposed to exist ok 2 - no autovivication for id_2 ..... not ok 17 - Since when we have a phone? Oh wait, autovivication is her +e! # Failed test 'Since when we have a phone? Oh wait, autovivication i +s here!' # at autovivification.pl line 117. # Looks like you failed 1 test of 17.
And here is the 17th test (there's no 'phones' in 'home'),
print "Hey, we have a fax machine at home!\n" # can't happen if $cds{id_1}{address}{home}{phones}{fax}; ok(!exists $cds{id_1}{address}{home}{phones}, 'Since when we have a phone? Oh wait, autovivication is here!');
So at least I know it's worth not only for me. And tye has provided a much better solution.

I got some warning lines when installing....

t/base....Pseudo-hashes are deprecated at /.../.cpan/build/Data-Diver- +1.0101-Sa9fgP/blib/lib/Data/Diver.pm line 140. Pseudo-hashes are deprecated at /.../.cpan/build/Data-Diver-1.0101-Sa9 +fgP/blib/lib/Data/Diver.pm line 131. Pseudo-hashes are deprecated at /.../.cpan/build/Data-Diver-1.0101-Sa9 +fgP/blib/lib/Data/Diver.pm line 140.

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