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* bug#63552: 29.0.91; M-x completion-predicate does not account for python-ts-mode
@ 2023-05-17 11:54 Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
  2023-05-17 12:40 ` Eli Zaretskii
  0 siblings, 1 reply; 7+ messages in thread
From: Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2023-05-17 11:54 UTC (permalink / raw)
  To: 63552; +Cc: Augusto Stoffel

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Severity: minor
Tags: patch

At the time of https://bugs.gnu.org/57184 python-ts-mode did not yet
exist, so the completion-predicates added to python.el as part of that
report understandably assumed only python-mode exists.

Here's what that means in practice:

0. emacs -Q
1. (setq read-extended-command-predicate
         #'command-completion-default-include-p)
2. C-x C-e
3. M-x python-ts-mode RET
4. M-x python-sort TAB
   => [No match]

And yet python-sort-imports is present in the local map:

5. C-g
6. C-h f python-sort-imports RET
   => It is bound to C-c TAB s.

By contrast, in python-mode:

7. M-x python-mode RET
8. M-x python-sort TAB
   => Completes to python-sort-imports

The following patch fixes this by associating M-x completion with
python-base-mode rather than python-mode:


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[-- Attachment #2: 0001-Fix-M-x-completion-predicate-under-python-ts-mode.patch --]
[-- Type: text/x-diff, Size: 3681 bytes --]

From e71f85ef40e99e8ebc65b7907c5d487d47b0a66f Mon Sep 17 00:00:00 2001
From: "Basil L. Contovounesios" <contovob@tcd.ie>
Date: Mon, 15 May 2023 16:28:56 +0100
Subject: [PATCH] Fix M-x completion-predicate under python-ts-mode

* lisp/progmodes/python.el:
(python-skeleton-define): Filter M-x completion based on
python-base-mode instead of python-mode.  This allows for
python-ts-mode as well.  Use command-modes as a shorthand for
completion-predicate.
(python--completion-predicate, python-shell--completion-predicate):
Remove accordingly; no longer used.
(python-define-auxiliary-skeleton): Prefer function-put over put.
---
 lisp/progmodes/python.el | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index bbabce80b4d..92ac84ff099 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -4964,11 +4964,6 @@ 'python-mode-skeleton-abbrev-table
                       (not (python-syntax-comment-or-string-p))
                       python-skeleton-autoinsert)))
 
-(defun python--completion-predicate (_ buffer)
-  (provided-mode-derived-p
-   (buffer-local-value 'major-mode buffer)
-   'python-mode))
-
 (defmacro python-skeleton-define (name doc &rest skel)
   "Define a `python-mode' skeleton using NAME DOC and SKEL.
 The skeleton will be bound to python-skeleton-NAME and will
@@ -4977,7 +4972,7 @@ python-skeleton-define
   (let* ((name (symbol-name name))
          (function-name (intern (concat "python-skeleton-" name))))
     `(progn
-       (put ',function-name 'completion-predicate #'python--completion-predicate)
+       (function-put ',function-name 'command-modes '(python-base-mode))
        (define-abbrev python-mode-skeleton-abbrev-table
          ,name "" ',function-name :system t)
        (setq python-skeleton-available
@@ -5004,7 +4999,7 @@ python-define-auxiliary-skeleton
             `(< ,(format "%s:" name) \n \n
                 > _ \n)))
     `(progn
-       (put ',function-name 'completion-predicate #'ignore)
+       (function-put ',function-name 'completion-predicate #'ignore)
        (define-skeleton ,function-name
          ,(or doc
               (format "Auxiliary skeleton for %s statement." name))
@@ -6752,7 +6747,7 @@ python-ts-mode
     (add-to-list 'interpreter-mode-alist '("python[0-9.]*" . python-ts-mode))))
 
 ;;; Completion predicates for M-x
-;; Commands that only make sense when editing Python code
+;; Commands that only make sense when editing Python code.
 (dolist (sym '(python-add-import
                python-check
                python-fill-paragraph
@@ -6786,12 +6781,7 @@ python-ts-mode
                python-shell-send-defun
                python-shell-send-statement
                python-sort-imports))
-  (put sym 'completion-predicate #'python--completion-predicate))
-
-(defun python-shell--completion-predicate (_ buffer)
-  (provided-mode-derived-p
-   (buffer-local-value 'major-mode buffer)
-   'python-mode 'inferior-python-mode))
+  (function-put sym 'command-modes '(python-base-mode)))
 
 ;; Commands that only make sense in the Python shell or when editing
 ;; Python code.
@@ -6806,8 +6796,8 @@ python-shell--completion-predicate
                python-shell-font-lock-turn-off
                python-shell-font-lock-turn-on
                python-shell-package-enable
-               python-shell-completion-complete-or-indent  ))
-  (put sym 'completion-predicate #'python-shell--completion-predicate))
+               python-shell-completion-complete-or-indent))
+  (function-put sym 'command-modes '(python-base-mode inferior-python-mode)))
 
 (provide 'python)
 
-- 
2.34.1


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WDYT?

Thanks,

-- 
Basil

In GNU Emacs 29.0.91 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.16.0, Xaw3d scroll bars) of 2023-05-17 built on blc
Repository revision: b5bfd808c6b40f47fdef8eb9986bc3127ca63c12
Repository branch: wt/emacs-29
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Ubuntu 22.04.2 LTS

Configured using:
 'configure CC=gcc-12 'CFLAGS=-Og -ggdb3' --prefix=/home/bic/.local
 --with-program-suffix=-29 --with-file-notification=yes --with-x
 --with-x-toolkit=lucid'

Configured features:
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TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XAW3D XDBE XIM XINPUT2 XPM
LUCID ZLIB

Important settings:
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  value of $LC_TIME: en_IE.UTF-8
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Python

Minor modes in effect:
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  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
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Load-path shadows:
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Memory information:
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^ permalink raw reply related	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-05-18 12:15 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-05-17 11:54 bug#63552: 29.0.91; M-x completion-predicate does not account for python-ts-mode Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-17 12:40 ` Eli Zaretskii
2023-05-17 12:59   ` Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-17 13:33     ` Eli Zaretskii
2023-05-17 14:16       ` Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-05-18 11:55         ` Eli Zaretskii
2023-05-18 12:15           ` Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors

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