From: Bill Richter <richter@math.northwestern.edu>
To: Goswin von Brederlow <goswin-v-b@web.de>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Obj.magic, Toploop, HOL Light & pretty-printing exceptions
Date: Mon, 19 Aug 2013 22:18:58 -0500 [thread overview]
Message-ID: <201308200318.r7K3Iw5t000609@poisson.math.northwestern.edu> (raw)
In-Reply-To: <20130819155116.GA3104@frosties> (message from Goswin von Brederlow on Mon, 19 Aug 2013 17:51:16 +0200)
Goswin, thanks for the reply! I'm not sure if I'm using Obj.magic (I'll study this question), and I couldn't tell if your prohibition of Obj.magic extends to Toploop.getvalue, which I definitely am using:
> let exec = ignore o Toploop.execute_phrase false Format.std_formatter
> o !Toploop.parse_toplevel_phrase o Lexing.from_string;;
Thanks for explaining why `eval' crashes the GC because of advanced pointers by 2. Perhaps I can draw you into what I think is the real discussion. How does one complete the standard Scheme-type exercise of building an ocaml meta-interpreter inside ocaml? You can do this easily in Scheme because of the quote feature. What I and my teachers Freek, Mark and Vince are doing is, I think, trying to emulate the Scheme quote feature with Toploop & Obj.magic.
--
Best,
Bill
next prev parent reply other threads:[~2013-08-20 3:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-12 3:12 Bill Richter
2013-08-19 15:51 ` Goswin von Brederlow
2013-08-20 3:18 ` Bill Richter [this message]
2013-08-20 9:16 ` Goswin von Brederlow
2013-08-21 3:30 ` Bill Richter
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