bug#38628: [PATCH] gexp: Allow character literals in GEXP->SEXP.

[Marius Bakke <mbakke@fastmail.com>]

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Marius Bakke <mbakke@fastmail.com> writes:

> Ludovic Courtès <ludo@gnu.org> writes:
>
>> Also it would be nice to add a tiny test close to the one that
>> 24ab804ce11fe12ff49cd144a3d9c4bfcf55b41c added.
>
> Good idea.  I came up with this:
>
> diff --git a/tests/gexp.scm b/tests/gexp.scm
> index 84c16422c2..8b1596f66d 100644
> --- a/tests/gexp.scm
> +++ b/tests/gexp.scm
> @@ -886,6 +886,12 @@
>      (run-with-store %store
>        (lower-gexp #~(foo #$+)))))
>  
> +(test-equal "lower-gexp, character literal"
> +  '(#\+)
> +  (lowered-gexp-sexp
> +   (run-with-store %store
> +     (lower-gexp #~(#\+)))))
> +
>  (test-assertm "gexp->derivation #:references-graphs"
>    (mlet* %store-monad
>        ((one (text-file "one" (random-text)))
>
> WDYT?

I ended up pushing this in ab7010af1f1077c056529769a53a380147c3933f,
even though I suspect there is an easier test that could reveal this
problem without involving the store, somewhere.  Improvements welcome.

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