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From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Obj.t : Illegal instruction (and camlp4)
Date: Wed, 7 Feb 2007 03:29:31 +0100	[thread overview]
Message-ID: <20070207022931.GA24805@yquem.inria.fr> (raw)
In-Reply-To: <20070207014717.GA17319@pulp.rsise.anu.edu.au>

Hi,

On Wed, Feb 07, 2007 at 12:47:17PM +1100, Pietro Abate wrote:

> let make_entry rt (token_list,action) =
>     let _loc = Token.dummy_loc in
>     let el = List.map (make_token rt) token_list in
>     let a = (fun _ _ -> <:expr< "dummy_action" >>) in
>     (el,Gramext.action (Obj.repr a))
> ;;

Replace:
    let a = (fun _ _ -> <:expr< "dummy_action" >>) in

by:
    let a =
      List.fold_left (fun a _ -> Obj.magic (fun _ a))
        (Obj.magic (fun _loc -> <:expr< "dummy_action" >>)) token_list
    in

The semantic action must have as many parameters as the length of the
symbols list plus one (the last one being the location of the rule).

-- 
Daniel de Rauglaudre
http://pauillac.inria.fr/~ddr/


  reply	other threads:[~2007-02-07  2:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-07  1:47 Pietro Abate
2007-02-07  2:29 ` Daniel de Rauglaudre [this message]
2007-02-07  2:42   ` [Caml-list] " Daniel de Rauglaudre

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