* bug#60102: Move gv-expander of substring to cl-lib
@ 2022-12-15 20:12 Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-16 6:56 ` Eli Zaretskii
2022-12-16 7:22 ` Juri Linkov
0 siblings, 2 replies; 6+ messages in thread
From: Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2022-12-15 20:12 UTC (permalink / raw)
To: 60102
[-- Attachment #1: Type: text/plain, Size: 1377 bytes --]
Tags: patch
Tags: patch
The `gv-expander` of `substring` uses the `cl--set-substring` function
that's defined only in `cl-lib`, so currently, you can compile
(setf (substring ...) ...)
without requiring `cl-lib` but at run time it will tend to signal
a `void-function` error.
We could autoload `cl--set-substring`, but I think a better choice is to
move this `gv-expander` to `cl-lib.el`.
There are 2 other place definitions in `gv.el` which similarly rely on
helper functions defined in `cl-lib` (namely `buffer-substring` and
`frame-visible-p`) which we could move as well, but since we marked
those as obsolete anyway I think we can "let them die" where they are,
with their quirks left alone. If you feel otherwise, I can update the
patch to move them to `cl-lib.el` as well.
Stefan
In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnux32, GTK+ Version
3.24.35, cairo version 1.16.0) of 2022-12-09 built on alfajor
Repository revision: b134e7e6abf18286d38e1b589f0fdae523cf1e73
Repository branch: work
Windowing system distributor 'The X.Org Foundation', version 11.0.12101003
System Description: Debian GNU/Linux bookworm/sid
Configured using:
'configure -C --enable-checking --enable-check-lisp-object-type --with-modules --with-cairo --with-tiff=ifavailable
'CFLAGS=-Wall -g3 -Og -Wno-pointer-sign'
PKG_CONFIG_PATH=/home/monnier/lib/pkgconfig'
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: gv-substring.patch --]
[-- Type: text/patch, Size: 1619 bytes --]
diff --git a/lisp/emacs-lisp/cl-lib.el b/lisp/emacs-lisp/cl-lib.el
index b83b44974d3..ceb5c21baf1 100644
--- a/lisp/emacs-lisp/cl-lib.el
+++ b/lisp/emacs-lisp/cl-lib.el
@@ -170,6 +170,17 @@ cl--set-substring
val
(and (< end (length str)) (substring str end))))
+(gv-define-expander substring
+ (lambda (do place from &optional to)
+ (gv-letplace (getter setter) place
+ (macroexp-let2* nil ((start from) (end to))
+ (funcall do `(substring ,getter ,start ,end)
+ (lambda (v)
+ (macroexp-let2 nil v v
+ `(progn
+ ,(funcall setter `(cl--set-substring
+ ,getter ,start ,end ,v))
+ ,v))))))))
;;; Blocks and exits.
diff --git a/lisp/emacs-lisp/gv.el b/lisp/emacs-lisp/gv.el
index 11251d7a963..29cfca9cb62 100644
--- a/lisp/emacs-lisp/gv.el
+++ b/lisp/emacs-lisp/gv.el
@@ -815,17 +815,5 @@ eq
((eq ,getter ,val) ,(funcall setter `(not ,val))))))))))
(make-obsolete-generalized-variable 'eq nil "29.1")
-(gv-define-expander substring
- (lambda (do place from &optional to)
- (gv-letplace (getter setter) place
- (macroexp-let2* nil ((start from) (end to))
- (funcall do `(substring ,getter ,start ,end)
- (lambda (v)
- (macroexp-let2 nil v v
- `(progn
- ,(funcall setter `(cl--set-substring
- ,getter ,start ,end ,v))
- ,v))))))))
-
(provide 'gv)
;;; gv.el ends here
^ permalink raw reply related [flat|nested] 6+ messages in thread
* bug#60102: Move gv-expander of substring to cl-lib
2022-12-15 20:12 bug#60102: Move gv-expander of substring to cl-lib Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
@ 2022-12-16 6:56 ` Eli Zaretskii
2022-12-16 14:14 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-16 7:22 ` Juri Linkov
1 sibling, 1 reply; 6+ messages in thread
From: Eli Zaretskii @ 2022-12-16 6:56 UTC (permalink / raw)
To: Stefan Monnier; +Cc: 60102
> Date: Thu, 15 Dec 2022 15:12:06 -0500
> From: Stefan Monnier via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>
> The `gv-expander` of `substring` uses the `cl--set-substring` function
> that's defined only in `cl-lib`, so currently, you can compile
>
> (setf (substring ...) ...)
>
> without requiring `cl-lib` but at run time it will tend to signal
> a `void-function` error.
> We could autoload `cl--set-substring`, but I think a better choice is to
> move this `gv-expander` to `cl-lib.el`.
>
> There are 2 other place definitions in `gv.el` which similarly rely on
> helper functions defined in `cl-lib` (namely `buffer-substring` and
> `frame-visible-p`) which we could move as well, but since we marked
> those as obsolete anyway I think we can "let them die" where they are,
> with their quirks left alone. If you feel otherwise, I can update the
> patch to move them to `cl-lib.el` as well.
Is the patch for master or for the release branch? I think it should
go to master.
Thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#60102: Move gv-expander of substring to cl-lib
2022-12-15 20:12 bug#60102: Move gv-expander of substring to cl-lib Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-16 6:56 ` Eli Zaretskii
@ 2022-12-16 7:22 ` Juri Linkov
1 sibling, 0 replies; 6+ messages in thread
From: Juri Linkov @ 2022-12-16 7:22 UTC (permalink / raw)
To: Stefan Monnier; +Cc: 60102
> The `gv-expander` of `substring` uses the `cl--set-substring` function
> that's defined only in `cl-lib`, so currently, you can compile
>
> (setf (substring ...) ...)
>
> without requiring `cl-lib` but at run time it will tend to signal
> a `void-function` error.
> We could autoload `cl--set-substring`, but I think a better choice is to
> move this `gv-expander` to `cl-lib.el`.
I tried your patch by evaluating `(tab-bar-make-keymap-1)`,
but it still fails with:
Debugger entered--Lisp error: (void-function cl--set-substring)
cl--set-substring(#("*scratch* x" 0 9 ...
tab-bar-auto-width(((sep-1 menu-item " " ignore) (current-tab menu-item #("*scratch* x" 0 9 ...
tab-bar-make-keymap-1()
(progn (tab-bar-make-keymap-1))
elisp--eval-last-sexp(nil)
eval-last-sexp(nil)
funcall-interactively(eval-last-sexp nil)
command-execute(eval-last-sexp)
OTOH, autoloading `cl--set-substring` fixes this error.
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#60102: Move gv-expander of substring to cl-lib
2022-12-16 6:56 ` Eli Zaretskii
@ 2022-12-16 14:14 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-04 20:00 ` Stefan Kangas
0 siblings, 1 reply; 6+ messages in thread
From: Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2022-12-16 14:14 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 60102
> Is the patch for master or for the release branch?
Definitely not for the release branch, no.
So I take it you think it's OK for `master`, thanks.
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#60102: Move gv-expander of substring to cl-lib
2022-12-16 14:14 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
@ 2023-09-04 20:00 ` Stefan Kangas
2023-09-04 20:43 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
0 siblings, 1 reply; 6+ messages in thread
From: Stefan Kangas @ 2023-09-04 20:00 UTC (permalink / raw)
To: Stefan Monnier; +Cc: Eli Zaretskii, 60102
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> Is the patch for master or for the release branch?
>
> Definitely not for the release branch, no.
> So I take it you think it's OK for `master`, thanks.
It seems like this patch was never installed? Should it be?
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#60102: Move gv-expander of substring to cl-lib
2023-09-04 20:00 ` Stefan Kangas
@ 2023-09-04 20:43 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
0 siblings, 0 replies; 6+ messages in thread
From: Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2023-09-04 20:43 UTC (permalink / raw)
To: Stefan Kangas; +Cc: Eli Zaretskii, 60102
>>> Is the patch for master or for the release branch?
>> Definitely not for the release branch, no.
>> So I take it you think it's OK for `master`, thanks.
> It seems like this patch was never installed? Should it be?
Indeed, thanks, pushed,
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-09-04 20:43 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2022-12-15 20:12 bug#60102: Move gv-expander of substring to cl-lib Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-16 6:56 ` Eli Zaretskii
2022-12-16 14:14 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-04 20:00 ` Stefan Kangas
2023-09-04 20:43 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-16 7:22 ` Juri Linkov
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