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Patent '520 is standard refactoring optimization, totally normal practice | 225 comments | Create New Account
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Patent '520 is standard refactoring optimization, totally normal practice
Authored by: Anonymous on Thursday, May 10 2012 @ 07:54 PM EDT
Yes indeed, the expression optimization done by Perl in your example is strongly related to their claims in '520. It's promoting computations from inner blocks to outer blocks to improve processing efficiency, in case inner blocks are called more than once. What's more, it allows the initialization to be done in dedicated static code which can do that more efficiently en masse, rather than piecemeal dynamically at the time the data is actually needed. This is essentially the same as in Perl if one allows for the implementation differences in Java.

Your example would be even more analogous if you had several expressions that could be optimized, called from different parts of your program. The fact that Perl would gather all these separate expressions together and initialize the variables together at the start in one go is exactly what they are claiming is novel. I certainly don't see it that way.

[ Reply to This | Parent | # ]

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