From c8b862f00e208f2c09bf2a2b2436af0a466a2531 Mon Sep 17 00:00:00 2001
From: jao <jao@gnu.org>
Date: Sun, 10 Aug 2025 14:45:43 +0100
Subject: More idiomatic geiser-set-scheme (thanks, Stefan)

---
 elisp/geiser-mode.el | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/elisp/geiser-mode.el b/elisp/geiser-mode.el
index 13393c9..75162d4 100644
--- a/elisp/geiser-mode.el
+++ b/elisp/geiser-mode.el
@@ -1,6 +1,6 @@
 ;;; geiser-mode.el --- Minor mode for scheme buffers  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2009-2017, 2020, 2022, 2024 Jose Antonio Ortega Ruiz
+;; Copyright (C) 2009-2017, 2020, 2022, 2024, 2025 Jose Antonio Ortega Ruiz
 
 ;; This program is free software; you can redistribute it and/or
 ;; modify it under the terms of the Modified BSD License. You should
@@ -244,16 +244,15 @@ With prefix, recursively macro-expand the resulting expression."
                         all
                         t))
 
-(defun geiser-set-scheme (&optional impl)
+(defun geiser-set-scheme (impl)
   "Associates current buffer with a given Scheme implementation."
-  (interactive)
+  (interactive (list (geiser-impl--read-impl)))
   (save-excursion
     (geiser-syntax--remove-kws)
-    (let ((impl (or impl (geiser-impl--read-impl))))
-      (geiser-impl--set-buffer-implementation impl)
-      (geiser-repl--set-up-repl impl)
-      (geiser-syntax--add-kws)
-      (geiser-syntax--fontify))))
+    (geiser-impl--set-buffer-implementation impl)
+    (geiser-repl--set-up-repl impl)
+    (geiser-syntax--add-kws)
+    (geiser-syntax--fontify)))
 
 (defun geiser-mode-switch-to-repl (arg)
   "Switches to Geiser REPL.
-- 
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