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-rw-r--r--test/lisp/emacs-lisp/bytecomp-tests.el18
1 files changed, 18 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/bytecomp-tests.el b/test/lisp/emacs-lisp/bytecomp-tests.el
index c9ab3ec1f1b..33413f5a002 100644
--- a/test/lisp/emacs-lisp/bytecomp-tests.el
+++ b/test/lisp/emacs-lisp/bytecomp-tests.el
@@ -1312,6 +1312,24 @@ compiled correctly."
(funcall f 3))
4)))
+(declare-function bc-test-alpha-f (ert-resource-file "bc-test-alpha.el"))
+
+(ert-deftest bytecomp-defsubst ()
+ ;; Check that lexical variables don't leak into inlined code. See
+ ;; https://lists.gnu.org/archive/html/emacs-devel/2021-05/msg01227.html
+
+ ;; First, remove any trace of the functions and package defined:
+ (fmakunbound 'bc-test-alpha-f)
+ (fmakunbound 'bc-test-beta-f)
+ (setq features (delq 'bc-test-beta features))
+ ;; Byte-compile one file that uses a function from another file that isn't
+ ;; compiled.
+ (let ((file (ert-resource-file "bc-test-alpha.el"))
+ (load-path (cons (ert-resource-directory) load-path)))
+ (byte-compile-file file)
+ (load-file (concat file "c"))
+ (should (equal (bc-test-alpha-f 'a) '(nil a)))))
+
;; Local Variables:
;; no-byte-compile: t
;; End: