I don't think the problem is with having laziness and defined order of evaluation. It's side-effects per-se that create the problem. Which is why laziness is usualy only present in purely functional (free of any side-effects) languages.

The defined O-of-E could actually make the problem slightly smaller. Anyway IMHO the only thing Lary can do is to write a warning in the docs. "Don't mix laziness and side effects. If you do, don't come to us crying ;-)"

Jenda
Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
   -- Rick Osborne

Edit by castaway: Closed small tag in signature

In reply to Re: Re: Order of operations, mutators, aliasing and whammies by Jenda
in thread Order of operations, mutators, aliasing and whammies by demerphq

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