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Date: -- (:)
From: Frederic Tronel <Frederic.Tronel@i...>
Subject: Re: [Caml-list] Problem with parametric classes
John Max Skaller wrote:
> 
> Frederic Tronel wrote:
> 
> >Hello,
> >
> >I'm using Ocaml 3.04 (plus a patch applied to circumvent a
> >problem with parametric classes bug id 841).
> >
> >I'm trying to compile the following piece of code (more
> >precisely, this is a significant excerpt of the faulty code).
> >which fails with the following error:
> >
> I commented out the initialiser in specElement and got this error:
> 
> File "tmp.ml", line 30, characters 22-41:
> The type of this expression,
> < get_ident : int; set_ident : int -> unit; _.. > countingObjects,
> contains type variables that cannot be generalized
> 
> and here on line 30 you are making an instance object without
> binding the type variable ..
> 
> let countingObjects = new countingObjects ;;
> 
> That seems suspicious .. countingObjects is generic
> here .. this is at global scope .. the initialiser
> which fixes the type is inside a class ..
> this has to be wrong ..

Why not ?
This code has worked for a long time, before I decided to add some
features (synchroAccounting class).


Frederic.
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