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From: Hendrik Tews <tews@os.inf.tu-dresden.de>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Quotations and the functorial camlp4 interface
Date: Fri, 03 Sep 2010 09:17:19 +0200	[thread overview]
Message-ID: <6xmxrzz474.fsf@blau.inf.tu-dresden.de> (raw)
In-Reply-To: <6x7hj86v5f.fsf@blau.inf.tu-dresden.de> (Hendrik Tews's message of "Mon, 30 Aug 2010 16:18:52 +0200")

I wrote:

   How about the Loc submodule of Ast that is passed into
   OCamlInitSyntax? There is the mutable Loc.name, which contains
   the default location variable. If I reuse the Ast argument of
   OCamlInitSyntax, will the mutable Loc.name be shared between the
   outputs? 

Yes, it will, changing Loc.name has a global effect. 

What's more problematic is that the Loc sources are not
functorized, that is, there is only one instance
(Camlp4.Struct.Loc) that one can use. Consequently, Loc.name is a
kind of global Camlp4 reference, similar to
Camlp4_config.quotation and Camlp4_config.antiquotations.

   Are there syntax extensions in the camlp4 distribution
   that mutate Loc.name?

A grep for Loc.name yields only one place that changes Loc.name:
the option -loc in Camlp4Bin.ml. So the answer is probably no.

Bye,

Hendrik


  reply	other threads:[~2010-09-03  7:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-06 21:25 Hendrik Tews
2010-08-30 14:18 ` [Caml-list] " Hendrik Tews
2010-09-03  7:17   ` Hendrik Tews [this message]
2010-09-02  8:56 ` Hendrik Tews

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