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* bug#56600: 29.0.50; Python navigation problem with an empty line in nested defun
@ 2022-07-16 13:28 kobarity
  2022-07-16 13:37 ` kobarity
  0 siblings, 1 reply; 3+ messages in thread
From: kobarity @ 2022-07-16 13:28 UTC (permalink / raw)
  To: 56600

Hi,

The following steps will place the point at the beginning of the line
"def foo():", not the line "def bar():".

1. emacs -Q
2. Load the following Python file using M-x find-file

#+begin_src python
def foo():
    def bar():

        pass

    def baz():
        pass
#+end_src

3. M-: (forward-line 2)
4. M-: (python-nav-beginning-of-defun)

python-nav-end-of-defun has a similar problem.

Best Regards,

--

In GNU Emacs 29.0.50 (build 6, x86_64-pc-linux-gnu)
 of 2022-07-16 built on ubuntu
Repository revision: ea9b442b82f1efd7e41094b455a00d73c16d0fc3
Repository branch: master
System Description: Ubuntu 22.04 LTS

Configured using:
 'configure --without-x --with-gnutls=ifavailable'

Configured features:
ACL LIBXML2 MODULES NOTIFY INOTIFY PDUMPER SECCOMP SOUND SQLITE3 THREADS
XIM ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
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puny dired dnd dired-loaddefs rfc822 mml mml-sec password-cache epa
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subr-x mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mail-utils term/screen term/xterm xterm
byte-opt gv bytecomp byte-compile cconv rmc iso-transl tooltip eldoc
paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode
tabulated-list replace newcomment text-mode lisp-mode prog-mode register
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japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
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text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget keymap hashtable-print-readable backquote threads inotify
multi-tty make-network-process emacs)

Memory information:
((conses 16 44274 5286)
 (symbols 48 5634 1)
 (strings 32 15464 1865)
 (string-bytes 1 494915)
 (vectors 16 8324)
 (vector-slots 8 102199 7439)
 (floats 8 25 355)
 (intervals 56 202 14)
 (buffers 992 11))





^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#56600: 29.0.50; Python navigation problem with an empty line in nested defun
  2022-07-16 13:28 bug#56600: 29.0.50; Python navigation problem with an empty line in nested defun kobarity
@ 2022-07-16 13:37 ` kobarity
  2022-07-16 16:14   ` Lars Ingebrigtsen
  0 siblings, 1 reply; 3+ messages in thread
From: kobarity @ 2022-07-16 13:37 UTC (permalink / raw)
  To: 56600

[-- Attachment #1: Type: text/plain, Size: 296 bytes --]

Hello,

I'm afraid this is a bug in my patch to fix #56105.  It initialized
`min-indentation' using `current-indentation' of the current line.
However, it was not adequate for an empty line as
`current-indentation' of an empty line is zero.

Attached is a patch to fix this issue.

Best Regards,

[-- Attachment #2: fix-56600.patch --]
[-- Type: application/octet-stream, Size: 5460 bytes --]

commit 3b23ee92fab820497e90038b9eab5c030b989de4
Author: kobarity <kobarity@gmail.com>
Date:   Sat Jul 16 22:30:31 2022 +0900

    Fix python navigation problem with an empty line in nested defun
    
    * lisp/progmodes/python.el (python-nav--beginning-of-defun): Fix
    bug when point is on an empty line (bug#56600).

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index 1c99937c4b..f31832fec9 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -1454,21 +1454,24 @@ python-nav--beginning-of-defun
          (line-beg-pos (line-beginning-position))
          (line-content-start (+ line-beg-pos (current-indentation)))
          (pos (point-marker))
-         (min-indentation (+ (current-indentation)
-                             (if (python-info-looking-at-beginning-of-defun)
-                                 python-indent-offset 0)))
+         (min-indentation (if (python-info-current-line-empty-p)
+                              most-positive-fixnum
+                            (current-indentation)))
          (body-indentation
           (and (> arg 0)
-               (save-excursion
-                 (while (and
-                         (or (not (python-info-looking-at-beginning-of-defun))
-                             (>= (current-indentation) min-indentation))
-                         (setq min-indentation
-                               (min min-indentation (current-indentation)))
-                         (python-nav-backward-block)))
-                 (or (and (python-info-looking-at-beginning-of-defun)
-                          (+ (current-indentation) python-indent-offset))
-                     0))))
+               (or (and (python-info-looking-at-beginning-of-defun)
+                        (+ (current-indentation) python-indent-offset))
+                   (save-excursion
+                     (while
+                         (and
+                          (python-nav-backward-block)
+                          (or (not (python-info-looking-at-beginning-of-defun))
+                              (>= (current-indentation) min-indentation))
+                          (setq min-indentation
+                                (min min-indentation (current-indentation)))))
+                     (or (and (python-info-looking-at-beginning-of-defun)
+                              (+ (current-indentation) python-indent-offset))
+                         0)))))
          (found
           (progn
             (when (and (python-info-looking-at-beginning-of-defun nil t)
diff --git a/test/lisp/progmodes/python-tests.el b/test/lisp/progmodes/python-tests.el
index 92c20288c8..b2cccdd956 100644
--- a/test/lisp/progmodes/python-tests.el
+++ b/test/lisp/progmodes/python-tests.el
@@ -1876,7 +1876,7 @@ python-nav-beginning-of-defun-2
                 (beginning-of-line)
                 (point))))
    ;; Nested defuns should be skipped.
-   (python-tests-look-at "return a" -1)
+   (forward-line -1)
    (should (= (save-excursion
                 (python-nav-beginning-of-defun)
                 (point))
@@ -1885,6 +1885,15 @@ python-nav-beginning-of-defun-2
                 (beginning-of-line)
                 (point))))
    ;; Defuns on same levels should be respected.
+   (python-tests-look-at "if True:" -1)
+   (forward-line -1)
+   (should (= (save-excursion
+                (python-nav-beginning-of-defun)
+                (point))
+              (save-excursion
+                (python-tests-look-at "def a():" -1)
+                (beginning-of-line)
+                (point))))
    (python-tests-look-at "def a():" -1)
    (should (= (save-excursion
                 (python-nav-beginning-of-defun)
@@ -1893,8 +1902,16 @@ python-nav-beginning-of-defun-2
                 (python-tests-look-at "def b():" -1)
                 (beginning-of-line)
                 (point))))
-   ;; Jump to a top level defun.
+   ;; Jump to an upper level defun.
    (python-tests-look-at "def b():" -1)
+   (should (= (save-excursion
+                (python-nav-beginning-of-defun)
+                (point))
+              (save-excursion
+                (python-tests-look-at "def m(self):" -1)
+                (beginning-of-line)
+                (point))))
+   (forward-line -1)
    (should (= (save-excursion
                 (python-nav-beginning-of-defun)
                 (point))
@@ -2009,6 +2026,15 @@ python-nav-end-of-defun-1
                 (python-tests-look-at "def c(self):")
                 (forward-line -1)
                 (point))))
+   (should (= (save-excursion
+                (python-tests-look-at "def b():")
+                (forward-line -1)
+                (python-nav-end-of-defun)
+                (point))
+              (save-excursion
+                (python-tests-look-at "def c(self):")
+                (forward-line -1)
+                (point))))
    (should (= (save-excursion
                 (python-tests-look-at "def b():")
                 (python-nav-end-of-defun)
@@ -2017,6 +2043,10 @@ python-nav-end-of-defun-1
                 (python-tests-look-at "def b():")
                 (forward-line 2)
                 (point))))
+   (should (not (save-excursion
+                  (python-tests-look-at "def a():")
+                  (forward-line -1)
+                  (python-nav-end-of-defun))))
    (should (= (save-excursion
                 (python-tests-look-at "def c(self):")
                 (python-nav-end-of-defun)

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* bug#56600: 29.0.50; Python navigation problem with an empty line in nested defun
  2022-07-16 13:37 ` kobarity
@ 2022-07-16 16:14   ` Lars Ingebrigtsen
  0 siblings, 0 replies; 3+ messages in thread
From: Lars Ingebrigtsen @ 2022-07-16 16:14 UTC (permalink / raw)
  To: kobarity; +Cc: 56600

kobarity <kobarity@gmail.com> writes:

> I'm afraid this is a bug in my patch to fix #56105.  It initialized
> `min-indentation' using `current-indentation' of the current line.
> However, it was not adequate for an empty line as
> `current-indentation' of an empty line is zero.
>
> Attached is a patch to fix this issue.

Thanks; pushed to Emacs 29.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no





^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-07-16 16:14 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-07-16 13:28 bug#56600: 29.0.50; Python navigation problem with an empty line in nested defun kobarity
2022-07-16 13:37 ` kobarity
2022-07-16 16:14   ` Lars Ingebrigtsen

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