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Re^3: Stupid mistakes I repeatedly make

by runrig (Abbot)
on Mar 27, 2005 at 18:36 UTC ( #442675=note: print w/replies, xml ) Need Help??


in reply to Re^2: Stupid mistakes I repeatedly make
in thread Stupid mistakes I repeatedly make

Is it not rather that you can't easily tell from context whether foo is a hash or a hashref?
It's not paying attention to context. Last time I did that, I passed a reference to a named hash to a function, e.g., foo_function(\%hash), then in the function started using the argument as a hash instead of a hash reference, and inconsistently at that. And then going back to the calling function, and adding code that assumed the hash was a reference. TGFS (Thank Go(o?)d(ness)? for strict :)

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Re^4: Stupid mistakes I repeatedly make
by tilly (Archbishop) on Mar 28, 2005 at 00:52 UTC
    I am religious about avoiding having a hash and a hashref in scope with the same name. That way lies insanity and (a couple of refactorings later) hard to track down bugs.
      Oh, I didn't actually have a hash and hashref in the same scope with the same name. Two functions, one with a hash, the other with a hashref, and me not paying attention to which was which. Nothing use strict couldn't find immediately.

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[Corion]: hippo: Yes, but I'm not sure that it's even worth the effort of implementing it at all...
[Corion]: You'll only ever need that option if you have a long-running query whose results are not cached by your DB already, and in those cases I presume that the programmer will want to maintain the temporary tables themselves - I wouldn't know when to drop ...
[Corion]: ... the temporary tables, and also don't have a good idea on how to create unique table names for them
[hippo]: OIC. In that case leave it out but invite feature requests and see if any of the users suggest it. :-)
[Corion]: Talking about this makes me realize that it's likely only a half useful idea. But it still would be convenient to have as an option...
[Corion]: hippo: Hmmm - yeah, I could document it and wait for code implementing that option to show up ;-D

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