GNU bug report logs - #71304
[PATCH] Add support for 'else' clause in R7RS cond-expand.

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Package: guile;

Reported by: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>

Date: Sat, 1 Jun 2024 04:00:02 UTC

Severity: normal

Tags: patch

Done: "Dr. Arne Babenhauserheide" <arne_bab <at> web.de>

Bug is archived. No further changes may be made.

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: 71304 <at> debbugs.gnu.org
Cc: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: bug#71304: [PATCH] Add support for 'else' clause in R7RS cond-expand.
Date: Fri, 31 May 2024 23:59:04 -0400

* module/ice-9/r7rs-libraries.scm (define-library)
<handle-cond-expand>: Add a pattern to match an 'else' clause.

Series-to: bug-guile <at> gnu.org
---
 module/ice-9/r7rs-libraries.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/module/ice-9/r7rs-libraries.scm b/module/ice-9/r7rs-libraries.scm
index 63a300a26..86b3dee24 100644
--- a/module/ice-9/r7rs-libraries.scm
+++ b/module/ice-9/r7rs-libraries.scm
@@ -64,8 +64,10 @@
            ;; FIXME: R7RS (features) isn't quite the same as
            ;; %cond-expand-features; see scheme/base.scm.
            (memq (syntax->datum #'id) %cond-expand-features))))
-      (syntax-case clauses ()
+      (syntax-case clauses (else)
         (() #'())  ; R7RS says this is not specified :-/
+        (((else decl ...))
+         #'(decl ...))
         (((test decl ...) . clauses)
          (if (has-req? #'test)
              #'(decl ...)

base-commit: 779a83d9c682345802f9a605cb8e2b4892129316
-- 
2.41.0
This bug report was last modified 323 days ago.

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