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Today's inflamatory opinion: exceptions are bad
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Date: | 2006-12-10 (06:34) |
From: | Jon Harrop <jon@f...> |
Subject: | Re: [Caml-list] Today's inflamatory opinion: exceptions are bad |
On Sunday 10 December 2006 03:35, Chris King wrote: > > My point here is this: Ocaml is not Java (a fact we should all be > > gratefull for, IMHO). Simply because Java and C++ do something, doesn't > > mean that it's a good thing to do. > > One thing Java (sort of) gets right is keeping track of which > exceptions a function can throw, making it easy to ensure that some > deeply nested piece of code won't cause the entire application to die > from some obscure exception. I'd love to see a similar feature in > O'Caml, whereby the exceptions which a function can raise are part of > its type and are inferred and checked by the compiler. This has been done. There was a tool called ocamlexc that did whole-program analysis to find out which exceptions could propagate where. However, it wasn't useful enough to be kept up to date. http://caml.inria.fr/pub/old_caml_site/ocamlexc/ocamlexc.htm -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. Objective CAML for Scientists http://www.ffconsultancy.com/products/ocaml_for_scientists