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authorakater <nuclearspace@gmail.com>2021-11-08 07:37:51 +0100
committerLars Ingebrigtsen <larsi@gnus.org>2021-11-08 07:38:41 +0100
commitca9fb109f75565dce7ba527f273cebc16887287e (patch)
tree9e388d05ce8e7fb3c6d4d4606fce1118218cff5b
parent51aa6cee2cb6eee48f62e3efe96f27a0d844e67d (diff)
downloademacs-ca9fb109f75565dce7ba527f273cebc16887287e.tar.gz
lisp/emacs-lisp/lisp-mode.el: Fix parser state corruption.
* lisp/emacs-lisp/lisp-mode.el (lisp--local-defform-body-p): Preserve the point. * test/lisp/progmodes/elisp-mode-resources/flet.erts: Add corresponding test example (bug#9622).
-rw-r--r--lisp/emacs-lisp/lisp-mode.el13
-rw-r--r--test/lisp/progmodes/elisp-mode-resources/flet.erts10
2 files changed, 17 insertions, 6 deletions
diff --git a/lisp/emacs-lisp/lisp-mode.el b/lisp/emacs-lisp/lisp-mode.el
index 15afdef0252..a5613e70e0a 100644
--- a/lisp/emacs-lisp/lisp-mode.el
+++ b/lisp/emacs-lisp/lisp-mode.el
@@ -1148,12 +1148,13 @@ STATE is the `parse-partial-sexp' state for current position."
;; that starts a sexp.
t)
(point))))))
- (ignore-errors
- ;; We rely on `backward-up-list' working
- ;; even when sexp is incomplete “to the right”.
- (backward-up-list 2)
- t)
- (= local-definitions-starting-point (point))))))))
+ (save-excursion
+ (ignore-errors
+ ;; We rely on `backward-up-list' working
+ ;; even when sexp is incomplete “to the right”.
+ (backward-up-list 2)
+ t)
+ (= local-definitions-starting-point (point)))))))))
(defun lisp-indent-function (indent-point state)
"This function is the normal value of the variable `lisp-indent-function'.
diff --git a/test/lisp/progmodes/elisp-mode-resources/flet.erts b/test/lisp/progmodes/elisp-mode-resources/flet.erts
index 7c4a0f304e9..da3dcb6ec3e 100644
--- a/test/lisp/progmodes/elisp-mode-resources/flet.erts
+++ b/test/lisp/progmodes/elisp-mode-resources/flet.erts
@@ -221,6 +221,16 @@ Name: flet15
i)))
=-=-=
+Name: flet16
+
+=-=
+(cl-flet ((f (x)
+ (g x)))
+ (pcase e
+ ((dangerous-expression)
+ (form))))
+=-=-=
+
Name: flet-indentation-incomplete-sexp-no-side-effects-1
Code: (lambda () (emacs-lisp-mode) (setq indent-tabs-mode nil) (newline nil t))
Point-Char: |