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pattern matching and records vs tuples
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Date: -- (:)
From: Martin Jambon <martin.jambon@e...>
Subject: Re: [Caml-list] pattern matching and records vs tuples
blue storm wrote:
> On Wed, Apr 15, 2009 at 2:44 AM, Yaron Minsky <yminsky@gmail.com> wrote:
>> Another thought I've had for making record matches lighter is to do the same
>> kind of trick that's done with labeled arguments, i.e., have
>>
>>    let { foo; bar } = x
>>
>> bind the variable foo to the x.foo, and bind bar to x.bar.
> 
> That part is achieved by the pa_records [1] syntax extension.
> To my knowledge, it has not been port to post-3.10 camlp4 yet, but if
> you're interested, I could probably do it.
> 
> [1] http://oandrieu.nerim.net/ocaml/#pa_records

It's in the works for the next release of OCaml, according to Xavier Leroy's
talk at the OCaml meeting in Grenoble (Feb 2009).

(Note to organizers: slides and video would be cool!)



Martin

-- 
http://mjambon.com/