[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Chicken-users] Reimporting modules
From: |
Peter Bex |
Subject: |
Re: [Chicken-users] Reimporting modules |
Date: |
Thu, 10 Sep 2009 22:24:50 +0200 |
User-agent: |
Mutt/1.4.2.3i |
On Thu, Sep 10, 2009 at 04:16:22PM -0400, John Cowan wrote:
> We have a problem with modules that get replaced:
>
> #;4> (module foo (foo) (import scheme) (define foo 64))
> #;5> (import foo)
> #;6> foo
> 32 ; This is bad.
> #;7> (module bar () (import scheme) (import foo) foo)
> 32 ; This is very, very bad.
> #;8>
>
> To solve the problem at 6, I think we need a "reimport" syntactic form,
> which will import modules that have already been imported.
It makes more sense to have "import" simply re-import the module if it's
already known. This allows one to simply re(LOAD) a file with module
imports while at the REPL, just like loading a file containing (DEFINE)s
causes old definitions to be redefined.
Cheers,
Peter
--
http://sjamaan.ath.cx
--
"The process of preparing programs for a digital computer
is especially attractive, not only because it can be economically
and scientifically rewarding, but also because it can be an aesthetic
experience much like composing poetry or music."
-- Donald Knuth
pgp7pO41e_RTp.pgp
Description: PGP signature