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Re: primitive eval with module => Unbound variable?

From: Andy Wingo
Subject: Re: primitive eval with module => Unbound variable?
Date: Mon, 22 May 2017 21:45:17 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

On Thu 18 May 2017 06:54, Jan Nieuwenhuizen <address@hidden> writes:

>> This is the right thing:
>>   (define-module (foo) #:export (baz))
>>   (define eval-module (current-module))
>>   (define bar 42)
>>   (define (baz) (eval 'bar eval-module))
> Thanks!...this works.  I'm very happy with this, it means that I can
> create an sexp-object format, yay!
> Earlier I tried several things eval, but did not see this `define
> eval-module' coming.  The above works, this does not work
>    (define-module (foo) #:export (baz))
>    (define bar 42)
>    (define (baz) (eval 'bar (current-module)))

current-module is dynamically scoped.  Consider:

  (define-module (qux)
    #:use-module (foo))

In this case the current module for the baz invocation is (qux).


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