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From: "François Pottier" <francois.pottier@inria.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] [ANN] visitors
Date: Mon, 30 Jan 2017 17:18:37 +0100	[thread overview]
Message-ID: <588F675D.40502@inria.fr> (raw)
In-Reply-To: <588F6415.4000900@inria.fr>


Le 30/01/2017 17:04, François Pottier a écrit :
> If the two data types are unrelated, then, in order to translate the type
> "foo" to the type "bar", you need a "fold" visitor for the type "foo". You
> then have to manually implement each of the "build_" methods, so as to
> explain how each data constructor of the type "foo" should be translated.

I forgot to add that the manual has an example of converting between two
entirely unrelated types: a user-defined type "crowd" is converted to
"(string * string) list".

--
François Pottier
francois.pottier@inria.fr
http://gallium.inria.fr/~fpottier/

  reply	other threads:[~2017-01-30 16:18 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-27 17:56 François Pottier
     [not found] ` <fc83f6ab-90a1-8ac1-7585-a15fb7fe89bd@zoho.com>
2017-01-30 16:04   ` François Pottier
2017-01-30 16:18     ` François Pottier [this message]
2017-01-31  9:30     ` whitequark
2017-01-31 10:26       ` François Pottier
2017-01-31 21:02         ` whitequark
2017-01-31 12:46       ` François Pottier
2017-02-01 15:50         ` Emilio Jesús Gallego Arias
2017-02-01 16:48           ` François Pottier
2017-02-01 23:49             ` whitequark
2017-02-02  0:46               ` Emilio Jesús Gallego Arias
2017-03-16 11:12                 ` Kakadu
2017-03-16 15:33                   ` whitequark

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