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Re: [PATCH] Fix for `submodules' in (ice-9 session) (closes #30062)

From: Ludovic Courtès
Subject: Re: [PATCH] Fix for `submodules' in (ice-9 session) (closes #30062)
Date: Thu, 02 Sep 2010 00:23:40 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)


"Jose A. Ortega Ruiz" <address@hidden> writes:

> On Wed, Sep 01 2010, Ludovic Courtès wrote:
>> Hi!
>> "Jose A. Ortega Ruiz" <address@hidden> writes:
>>> (I'm still curious about the meaning of the
>>> modules with gensyms as names, though.)
>> psyntax expects modules to have a name so that it can refer to them in
>> expanded code.  Thus, there can be no anonymous modules: modules are
>> always given a name, see ‘module-name’.  This allows things like the
>> “compile in fresh module” test to work.
> I see. But then, aren't those modules something internal to psyntax's
> workings?

No, they’re not internal.  They’re just (pseudo-)anonymous modules that
ended up in the module hierarchy, like any other module.  Evaluate
(module-name (make-module)) and you’ve added another one.  :-)

> And if so, shouldn't they be filtered out from the return value of
> module-submodules (or not be traversed by the apropos-fold)? As a user
> of those procedures, i find the appearance of those modules a bit
> confusing (the only use case in client code i can think of is when
> using the return value of current-module). Am i missing something?

I agree that as users we’d rather not see these modules, especially from
Geiser.  But they have to be there.

So, unless I’m missing an elegant design trick to avoid this, I think
you’re bound to use heuristics to filter them out (e.g., get rid of
modules whose name contains white spaces.)


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