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Recent Readings

Book review: Darwinia
Reviewed: Friday, August 11, 2006

Summer reading: Spin
Reviewed: Saturday, August 5, 2006

Reviewed: Tuesday, July 18, 2006

the Omnivoire's Delimma
Reviewed: Wednesday, July 12, 2006

the Golem's Eye
Reviewed: Wednesday, May 31, 2006


Ignoring errors
Wednesday, February 8, 2006

Sometimes it's nice to be able to ignore-errors but it can be a tricky business when you forget that that is what you're doing! I just spent the last hour tracking down what appeared to be a bizarre bug. A function I was called kept aborting out early and returning nil? To compound the problem, i was doing some error handling within the function and its callers so I kept spelunking around in the wrong place. Finally, I managed the isolate the problem by splitting the errant function into littler and littler pieces until it had to succumb.

The real problem: I had an around method that was wrapping an ignore-errors around the call-next-method. I'm sure it had been a good idea once upon a time (though it's more likely that it was just expedient). Sigh.


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Copyright -- Gary Warren King, 2004 - 2006