From: Gerd Stolpmann <info@gerd-stolpmann.de>
To: Paul Snively <psnively@mac.com>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Trouble Defining an Object
Date: Thu, 08 Sep 2005 22:04:40 +0200 [thread overview]
Message-ID: <1126209882.12036.155.camel@localhost.localdomain> (raw)
In-Reply-To: <70DC8B53-7958-4CC6-A979-2CDFE4E03386@mac.com>
That's a purely syntactic issue. Instead of
class foo =
expr1;
expr2;
object ... end
use:
class foo =
let () = expr1 in
let () = expr2 in
object ... end
Only "let var = expr in expr" may be used between "class" and "object".
Gerd
Am Donnerstag, den 08.09.2005, 11:12 -0700 schrieb Paul Snively:
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> Hash: SHA1
>
> Folks,
>
> I'm trying to define a class that, given a string containing bytes
> from, e.g. an MP3, Ogg Vorbis, etc. music, contains that music.
> Later, of course, I'll make the class actually do something with the
> data, but for right now I can't even get the code to compile. I'm
> using the current ocamlsdl and findlib. Here's a copy of my session
> in the ocamlsdl toplevel:
> - ----------------------------snip snip----------------------------
> Objective Caml version 3.08.4
>
> # #require "sdl.sdlmixer";;
> /usr/local/lib/ocaml/site-lib/sdl: added to search path
> /usr/local/lib/ocaml/site-lib/sdl/sdlmixer.cma: loaded
> # open Sdlmixer;;
> # open Filename;;
> # class foo init_song =
> let name, chan = open_temp_file ~mode:[Open_binary] "foo" "bar" in
> output_string chan init_song;
> close_out chan;
> let the_song = load_music name in
> object
> val mutable song = the_song
> end;;
> Characters 123-124:
> output_string chan init_song;
> ^
> Syntax error
> - ----------------------------snip snip----------------------------
>
> I'm at a loss to understand where the error lies. Any advice would be
> greatly appreciated.
>
> Many thanks and best regards,
> Paul
>
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> IzEAoIzGA4Xb5igB719KOf/msuEBG/wD
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--
------------------------------------------------------------
Gerd Stolpmann * Viktoriastr. 45 * 64293 Darmstadt * Germany
gerd@gerd-stolpmann.de http://www.gerd-stolpmann.de
Telefon: 06151/153855 Telefax: 06151/997714
------------------------------------------------------------
next prev parent reply other threads:[~2005-09-08 20:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-08 18:12 Paul Snively
2005-09-08 20:04 ` Gerd Stolpmann [this message]
2005-09-08 20:52 ` [Caml-list] " Jon Harrop
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