From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: (guix modules) and =?utf-8?Q?=E2=80=98source-module-closure?=
	=?utf-8?Q?=E2=80=99?=
Date: Mon, 05 Sep 2016 23:24:12 +0200
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In-Reply-To: <87eg4yzmow.fsf@igalia.com> (Andy Wingo's message of "Mon, 05 Sep
	2016 12:05:19 +0200")
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To: Andy Wingo <wingo@igalia.com>
Cc: guix-devel <guix-devel@gnu.org>

Andy Wingo <wingo@igalia.com> skribis:

> On Mon 05 Sep 2016 10:13, Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> w=
rites:
>
>> Ah, very nice!
>>
>> Why is it necessary to read the file and parse the define-module
>> expression?  Does Guile not keep any of this information?  Should it?
>> Will something like this become part of Guile eventually?
>
> If you have the module loaded, there is "live-module-closure" which uses
> the information Guile has at run-time.  I guess Ludovic wanted to get
> this information without loading the module, for some reason :)

Exactly.  Most of the time =E2=80=9Cbuild-side=E2=80=9D module are not load=
ed in the
Guile process that uses =E2=80=98with-imported-modules=E2=80=99.

It=E2=80=99s a bit of hack but it=E2=80=99s necessary.  Guile could provide=
 this
functionality, but (guix modules) bakes in a few assumptions, notably
that all the source files start with =E2=80=98define-module=E2=80=99.

Ludo=E2=80=99.