Commit: patch 9.2.0305: mismatch between return types and documentation

[Christian Brabandt]

patch 9.2.0305: mismatch between return types and documentation

Commit: https://github.com/vim/vim/commit/365d58a53969ab2cc96268146c54622127b931f0
Author: Hirohito Higashi <h.eas...@gmail.com>
Date: Sun Apr 5 16:53:52 2026 +0000

patch 9.2.0305: mismatch between return types and documentation

Problem: mismatch between return types and documentation
Solution: Fix documentation, update f_err_teapot() return type to void
(Hirohito Higashi)

- Fix summary table in builtin.txt: feedkeys, foreground, setcharsearch,
term_wait, test_void, wildtrigger, ch_sendraw from non-none to none;
listener_remove and prop_add from none to Number
- Fix err_teapot in evalfunc.c: ret_number_bool to ret_void
- Fix "Return type:" in detailed doc sections (64 functions across builtin.txt,
channel.txt, terminal.txt, popup.txt, testing.txt, textprop.txt) from wrong
types to void
- Add missing "Return type: void" for prompt_setcallback and prop_add_list

closes: #19922

Co-Authored-By: Claude Opus 4.6 (1M context) <nor...@anthropic.com>
Signed-off-by: Hirohito Higashi <h.eas...@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yega...@yahoo.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index cdf8203ab..565bc8df8 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt* For Vim version 9.2. Last change: 2026 Apr 05
+*builtin.txt* For Vim version 9.2. Last change: 2026 Apr 06


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -120,7 +120,7 @@ ch_readraw({handle} [, {options}])
ch_sendexpr({handle}, {expr} [, {options}])
any send {expr} over JSON {handle}
ch_sendraw({handle}, {expr} [, {options}])
- any send {expr} over raw {handle}
+ none send {expr} over raw {handle}
ch_setoptions({handle}, {options})
none set options for {handle}
ch_status({handle} [, {options}])
@@ -192,7 +192,7 @@ extendnew({expr1}, {expr2} [, {expr3}])
List/Dict
like |extend()| but creates a new List
or Dictionary
-feedkeys({string} [, {mode}]) Number add key sequence to typeahead buffer
+feedkeys({string} [, {mode}]) none add key sequence to typeahead buffer
filecopy({from}, {to}) Number |TRUE| if copying file {from} to {to}
worked
filereadable({file}) Number |TRUE| if {file} is a readable file
@@ -219,7 +219,7 @@ foldtext() String line displayed for closed fold
foldtextresult({lnum}) String text for closed fold at {lnum}
foreach({expr1}, {expr2}) List/Tuple/Dict/Blob/String
for each item in {expr1} call {expr2}
-foreground() Number bring the Vim window to the foreground
+foreground() none bring the Vim window to the foreground
fullcommand({name} [, {vim9}]) String get full command from {name}
funcref({name} [, {arglist}] [, {dict}])
Funcref reference to function {name}
@@ -391,7 +391,7 @@ list2tuple({list}) Tuple turn {list} of items into a tuple
listener_add({callback} [, {buf} [, {unbuffered}]])
Number add a callback to listen to changes
listener_flush([{buf}]) none invoke listener callbacks
-listener_remove({id}) none remove a listener callback
+listener_remove({id}) Number remove a listener callback
localtime() Number current time
log({expr}) Float natural logarithm (base e) of {expr}
log10({expr}) Float logarithm of Float {expr} to base 10
@@ -486,7 +486,7 @@ prompt_setinterrupt({buf}, {text})
none set prompt interrupt function
prompt_setprompt({buf}, {text}) none set prompt text
prop_add({lnum}, {col}, {props})
- none add one text property
+ Number add one text property
prop_add_list({props}, [[{lnum}, {col}, {end-lnum}, {end-col}], ...])
none add multiple text properties
prop_clear({lnum} [, {lnum-end} [, {props}]])
@@ -581,7 +581,7 @@ setbufvar({buf}, {varname}, {val})
none set {varname} in buffer {buf} to {val}
setcellwidths({list}) none set character cell width overrides
setcharpos({expr}, {list}) Number set the {expr} position to {list}
-setcharsearch({dict}) Dict set character search from {dict}
+setcharsearch({dict}) none set character search from {dict}
setcmdline({str} [, {pos}]) Number set command-line
setcmdpos({pos}) Number set cursor position in command-line
setcursorcharpos({list}) Number move cursor to position in {list}
@@ -699,8 +699,7 @@ synconcealed({lnum}, {col}) List info about concealing
synstack({lnum}, {col}) List stack of syntax IDs at {lnum} and
{col}
system({expr} [, {input}]) String output of shell command/filter {expr}
-systemlist({expr} [, {input}])
- List output of shell command/filter {expr}
+systemlist({expr} [, {input}]) List output of shell command/filter {expr}
tabpagebuflist([{arg}]) List list of buffer numbers in tab page
tabpagenr([{arg}]) Number number of current or last tab page
tabpagewinnr({tabarg} [, {arg}])
@@ -739,7 +738,7 @@ term_setrestore({buf}, {command})
term_setsize({buf}, {rows}, {cols})
none set the size of a terminal
term_start({cmd} [, {options}]) Number open a terminal window and run a job
-term_wait({buf} [, {time}]) Number wait for screen to be updated
+term_wait({buf} [, {time}]) none wait for screen to be updated
terminalprops() Dict properties of the terminal
test_alloc_fail({id}, {countdown}, {repeat})
none make memory allocation fail
@@ -768,7 +767,7 @@ test_setmouse({row}, {col}) none set the mouse position for testing
test_settime({expr}) none set current time for testing
test_srand_seed([{seed}]) none set seed for testing srand()
test_unknown() any unknown value for testing
-test_void() any void value for testing
+test_void() none void value for testing
timer_info([{id}]) List information about timers
timer_pause({id}, {pause}) none pause or unpause a timer
timer_start({time}, {callback} [, {options}])
@@ -803,7 +802,7 @@ virtcol2col({winid}, {lnum}, {col})
Number byte index of a character on screen
visualmode([{expr}]) String last visual mode used
wildmenumode() Number whether 'wildmenu' mode is active
-wildtrigger() Number start wildcard expansion
+wildtrigger() none start wildcard expansion
win_execute({id}, {command} [, {silent}])
String execute {command} in window {id}
win_findbuf({bufnr}) List find windows containing {bufnr}
@@ -1273,7 +1272,7 @@ balloon_show({expr}) *balloon_show()*
{only available when compiled with the |+balloon_eval| or
|+balloon_eval_term| feature}

- Return type: |Number|
+ Return type: void


balloon_split({msg}) *balloon_split()*
@@ -1895,7 +1894,7 @@ clearmatches([{win}]) *clearmatches()*
Can also be used as a |method|: >
GetWin()->clearmatches()
<
- Return type: |Number|
+ Return type: void


cmdcomplete_info() *cmdcomplete_info()*
@@ -2015,7 +2014,7 @@ complete({startcol}, {matches}) *complete()* *E785*
second argument: >
GetMatches()->complete(col('.'))
<
- Return type: |Number|
+ Return type: void


complete_add({expr}) *complete_add()*
@@ -2659,7 +2658,7 @@ echoraw({string}) *echoraw()*
call echoraw(&t_TI)
< Use with care, you can mess up the terminal this way.

- Return type: |Number|
+ Return type: void


empty({expr}) *empty()*
@@ -2702,7 +2701,7 @@ err_teapot([{expr}]) *err_teapot()*
indicating that coffee is temporarily not available.
If {expr} is present it must be a String.

- Return type: |Number|
+ Return type: void


escape({string}, {chars}) *escape()*
@@ -3219,7 +3218,7 @@ feedkeys({string} [, {mode}]) *feedkeys()*
Can also be used as a |method|: >
GetInput()->feedkeys()
<
- Return type: |Number|
+ Return type: void


filecopy({from}, {to}) *filecopy()*
@@ -3656,7 +3655,7 @@ foreground() *foreground()*
allow a window to bring itself to the foreground. Use
|remote_foreground()| instead.

- Return type: |Number|
+ Return type: void
{only in the Win32, Motif and GTK GUI versions and the
Win32 console version}

@@ -3808,7 +3807,7 @@ garbagecollect([{atexit}]) *garbagecollect()*
type a character. To force garbage collection immediately use
|test_garbagecollect_now()|.

- Return type: |String|
+ Return type: void


get({list}, {idx} [, {default}]) *get()* *get()-list*
@@ -6877,7 +6876,7 @@ listener_flush([{buf}]) *listener_flush()*
Can also be used as a |method|: >
GetBuffer()->listener_flush()
<
- Return type: |Number|
+ Return type: void


listener_remove({id}) *listener_remove()*
@@ -7221,7 +7220,7 @@ mapset({dict})
mapset(d)
endfor
<
- Return type: |Number|
+ Return type: void


match({expr}, {pat} [, {start} [, {count}]]) *match()*
@@ -8484,8 +8483,10 @@ prompt_setcallback({buf}, {expr}) *prompt_setcallback()*

< Can also be used as a |method|: >
GetBuffer()->prompt_setcallback(callback)
+<
+ Return type: void

-< {only available when compiled with the |+channel| feature}
+ {only available when compiled with the |+channel| feature}

prompt_setinterrupt({buf}, {expr}) *prompt_setinterrupt()*
Set a callback for buffer {buf} to {expr}. When {expr} is an
@@ -8499,7 +8500,7 @@ prompt_setinterrupt({buf}, {expr}) *prompt_setinterrupt()*
Can also be used as a |method|: >
GetBuffer()->prompt_setinterrupt(callback)
<
- Return type: |Number|
+ Return type: void

{only available when compiled with the |+channel| feature}

@@ -8513,7 +8514,7 @@ prompt_setprompt({buf}, {text}) *prompt_setprompt()*
Can also be used as a |method|: >
GetBuffer()->prompt_setprompt('command: ')
<
- Return type: |Number|
+ Return type: void

{only available when compiled with the |+channel| feature}

@@ -8876,7 +8877,7 @@ redraw_listener_remove({id}) *redraw_listener_remove()*
Can also be used as a |method|: >
GetRedrawListenerId()->redraw_listener_remove()
<
- Return type: |Number|
+ Return type: void


reduce({object}, {func} [, {initial}]) *reduce()* *E998*
@@ -9132,7 +9133,7 @@ remote_startserver({name}) *remote_startserver()* *E941* *E942*
Can also be used as a |method|: >
ServerName()->remote_startserver()
<
- Return type: |Number|
+ Return type: void

{only available when compiled with the |+clientserver| feature}

@@ -9880,7 +9881,7 @@ setbufvar({buf}, {varname}, {val}) *setbufvar()*
third argument: >
GetValue()->setbufvar(buf, varname)
<
- Return type: |Number|
+ Return type: void


setcellwidths({list}) *setcellwidths()*
@@ -9917,7 +9918,7 @@ setcellwidths({list}) *setcellwidths()*
match with what Vim knows about each emoji. If it doesn't
look right you need to adjust the {list} argument.

- Return type: |Number|
+ Return type: void


setcharpos({expr}, {list}) *setcharpos()*
@@ -9960,7 +9961,7 @@ setcharsearch({dict}) *setcharsearch()*
Can also be used as a |method|: >
SavedSearch()->setcharsearch()
<
- Return type: dict<any>
+ Return type: void


setcmdline({str} [, {pos}]) *setcmdline()*
@@ -10027,7 +10028,7 @@ setenv({name}, {val}) *setenv()*
second argument: >
GetPath()->setenv('PATH')
<
- Return type: |Number|
+ Return type: void


setfperm({fname}, {mode}) *setfperm()* *chmod*
@@ -10386,7 +10387,7 @@ settabvar({tabnr}, {varname}, {val}) *settabvar()*
third argument: >
GetValue()->settabvar(tab, name)
<
- Return type: |Number|
+ Return type: void


settabwinvar({tabnr}, {winnr}, {varname}, {val}) *settabwinvar()*
@@ -10411,7 +10412,7 @@ settabwinvar({tabnr}, {winnr}, {varname}, {val}) *settabwinvar()*
fourth argument: >
GetValue()->settabwinvar(tab, winnr, name)
<
- Return type: |Number|
+ Return type: void


settagstack({nr}, {dict} [, {action}]) *settagstack()*
@@ -10464,7 +10465,7 @@ setwinvar({winnr}, {varname}, {val}) *setwinvar()*
third argument: >
GetValue()->setwinvar(winnr, name)
<
- Return type: |Number|
+ Return type: void


sha256({expr}) *sha256()*
@@ -10704,7 +10705,7 @@ sound_clear() *sound_clear()*
On some Linux systems you may need the libcanberra-pulse
package, otherwise sound may not stop.

- Return type: |Number|
+ Return type: void

{only available when compiled with the |+sound| feature}

@@ -10774,7 +10775,7 @@ sound_stop({id}) *sound_stop()*
Can also be used as a |method|: >
soundid->sound_stop()
<
- Return type: |Number|
+ Return type: void

{only available when compiled with the |+sound| feature}

@@ -12059,7 +12060,7 @@ timer_pause({timer}, {paused}) *timer_pause()*
Can also be used as a |method|: >
GetTimer()->timer_pause(1)
<
- Return type: |Number|
+ Return type: void

{only available when compiled with the |+timers| feature}

@@ -12119,7 +12120,7 @@ timer_stop({timer}) *timer_stop()*
Can also be used as a |method|: >
GetTimer()->timer_stop()
<
- Return type: |Number|
+ Return type: void

{only available when compiled with the |+timers| feature}

@@ -12129,7 +12130,7 @@ timer_stopall() *timer_stopall()*
invoked. Useful if a timer is misbehaving. If there are no
timers there is no error.

- Return type: |Number|
+ Return type: void

{only available when compiled with the |+timers| feature}

@@ -12619,7 +12620,7 @@ wildtrigger() *wildtrigger()*

Return value is always 0.

- Return type: |Number|
+ Return type: void


win_execute({id}, {command} [, {silent}]) *win_execute()*
@@ -12971,7 +12972,7 @@ winrestview({dict}) *winrestview()*
Can also be used as a |method|: >
GetView()->winrestview()
<
- Return type: |Number|
+ Return type: void


winsaveview() *winsaveview()*
diff --git a/runtime/doc/channel.txt b/runtime/doc/channel.txt
index f0b4f57c2..f458c1369 100644
--- a/runtime/doc/channel.txt
+++ b/runtime/doc/channel.txt
@@ -1,4 +1,4 @@
-*channel.txt* For Vim version 9.2. Last change: 2026 Apr 05
+*channel.txt* For Vim version 9.2. Last change: 2026 Apr 06


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -549,7 +549,7 @@ ch_close({handle}) *ch_close()*
Can also be used as a |method|: >
GetChannel()->ch_close()
<
- Return type: |Number|
+ Return type: void

ch_close_in({handle}) *ch_close_in()*
Close the "in" part of {handle}. See |channel-close-in|.
@@ -559,7 +559,7 @@ ch_close_in({handle}) *ch_close_in()*
Can also be used as a |method|: >
GetChannel()->ch_close_in()
<
- Return type: |Number|
+ Return type: void


ch_evalexpr({handle}, {expr} [, {options}]) *ch_evalexpr()*
@@ -708,7 +708,7 @@ ch_log({msg} [, {handle}]) *ch_log()*
Can also be used as a |method|: >
'did something'->ch_log()
<
- Return type: dict<any>
+ Return type: void

ch_logfile({fname} [, {mode}]) *ch_logfile()*
Start logging channel activity to {fname}.
@@ -825,7 +825,7 @@ ch_sendraw({handle}, {expr} [, {options}]) *ch_sendraw()*
Can also be used as a |method|: >
GetChannel()->ch_sendraw(rawexpr)
<
- Return type: dict<any> or |String|
+ Return type: void

ch_setoptions({handle}, {options}) *ch_setoptions()*
Set options on {handle}:
@@ -844,7 +844,7 @@ ch_setoptions({handle}, {options}) *ch_setoptions()*
Can also be used as a |method|: >
GetChannel()->ch_setoptions(options)
<
- Return type: |Number|
+ Return type: void

ch_status({handle} [, {options}]) *ch_status()*
Return the status of {handle}:
@@ -1038,7 +1038,7 @@ job_setoptions({job}, {options}) *job_setoptions()*
Can also be used as a |method|: >
GetJob()->job_setoptions(options)
<
- Return type: |Number|
+ Return type: void


job_start({command} [, {options}]) *job_start()*
diff --git a/runtime/doc/popup.txt b/runtime/doc/popup.txt
index e968a2107..899b7d18b 100644
--- a/runtime/doc/popup.txt
+++ b/runtime/doc/popup.txt
@@ -1,4 +1,4 @@
-*popup.txt* For Vim version 9.2. Last change: 2026 Mar 02
+*popup.txt* For Vim version 9.2. Last change: 2026 Apr 06


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -254,7 +254,7 @@ popup_clear([{force}])
when it is the current window. If a terminal is running in a
popup it is killed.

- Return type: |Number|
+ Return type: void


popup_close({id} [, {result}]) *popup_close()*
@@ -269,7 +269,7 @@ popup_close({id} [, {result}]) *popup_close()*
Can also be used as a |method|: >
GetPopup()->popup_close()
<
- Return type: |Number|
+ Return type: void


popup_create({what}, {options}) *popup_create()*
@@ -471,7 +471,7 @@ popup_hide({id}) *popup_hide()*
Can also be used as a |method|: >
GetPopup()->popup_hide()
<
- Return type: |Number|
+ Return type: void


popup_list() *popup_list()*
@@ -542,7 +542,7 @@ popup_move({id}, {options}) *popup_move()*
Can also be used as a |method|: >
GetPopup()->popup_move(options)
<
- Return type: |Number|
+ Return type: void


popup_notification({what}, {options}) *popup_notification()*
@@ -624,7 +624,7 @@ popup_setoptions({id}, {options}) *popup_setoptions()*
Can also be used as a |method|: >
GetPopup()->popup_setoptions(options)
<
- Return type: |Number|
+ Return type: void


popup_settext({id}, {text}) *popup_settext()*
@@ -636,7 +636,7 @@ popup_settext({id}, {text}) *popup_settext()*
Can also be used as a |method|: >
GetPopup()->popup_settext('hello')
<
- Return type: |Number|
+ Return type: void


popup_show({id}) *popup_show()*
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index 7a4f9cd53..6c9430dc8 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -1,4 +1,4 @@
-*terminal.txt* For Vim version 9.2. Last change: 2026 Apr 02
+*terminal.txt* For Vim version 9.2. Last change: 2026 Apr 06


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -596,7 +596,7 @@ term_dumpwrite({buf}, {filename} [, {options}]) *term_dumpwrite()*
name: >
GetFilename()->term_dumpwrite(bufnr)
<
- Return type: |Number|
+ Return type: void


term_getaltscreen({buf}) *term_getaltscreen()*
@@ -817,7 +817,7 @@ term_sendkeys({buf}, {keys}) *term_sendkeys()*
Can also be used as a |method|: >
GetBufnr()->term_sendkeys(keys)
<
- Return type: |Number|
+ Return type: void


term_setansicolors({buf}, {colors}) *term_setansicolors()*
@@ -852,7 +852,7 @@ term_setansicolors({buf}, {colors}) *term_setansicolors()*
Can also be used as a |method|: >
GetBufnr()->term_setansicolors(colors)
<
- Return type: |Number|
+ Return type: void

{only available with GUI enabled and/or the |+termguicolors|
feature}
@@ -870,7 +870,7 @@ term_setapi({buf}, {expr}) *term_setapi()*
When used as a method the base is used for {buf}: >
GetBufnr()->term_setapi({expr})
<
- Return type: |Number|
+ Return type: void


term_setkill({buf}, {how}) *term_setkill()*
@@ -888,7 +888,7 @@ term_setkill({buf}, {how}) *term_setkill()*
Can also be used as a |method|: >
GetBufnr()->term_setkill(how)
<
- Return type: |Number|
+ Return type: void


term_setrestore({buf}, {command}) *term_setrestore()*
@@ -903,7 +903,7 @@ term_setrestore({buf}, {command}) *term_setrestore()*
Can also be used as a |method|: >
GetBufnr()->term_setrestore(command)
<
- Return type: |Number|
+ Return type: void


term_setsize({buf}, {rows}, {cols}) *term_setsize()* *E955*
@@ -919,7 +919,7 @@ term_setsize({buf}, {rows}, {cols}) *term_setsize()* *E955*
Can also be used as a |method|: >
GetBufnr()->term_setsize(rows, cols)
<
- Return type: |Number|
+ Return type: void


term_start({cmd} [, {options}]) *term_start()*
@@ -1027,7 +1027,7 @@ term_wait({buf} [, {time}]) *term_wait()*
Can also be used as a |method|: >
GetBufnr()->term_wait()
<
- Return type: |Number|
+ Return type: void

==============================================================================
3. Terminal communication *terminal-communication*
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index ba98e048e..24e3a4aa2 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt* For Vim version 9.2. Last change: 2026 Feb 14
+*testing.txt* For Vim version 9.2. Last change: 2026 Apr 06


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -46,14 +46,14 @@ test_alloc_fail({id}, {countdown}, {repeat}) *test_alloc_fail()*
Can also be used as a |method|: >
GetAllocId()->test_alloc_fail()
<
- Return type: |Number|
+ Return type: void


test_autochdir() *test_autochdir()*
Set a flag to enable the effect of 'autochdir' before Vim
startup has finished.

- Return type: |Number|
+ Return type: void


test_feedinput({string}) *test_feedinput()*
@@ -64,7 +64,7 @@ test_feedinput({string}) *test_feedinput()*
Can also be used as a |method|: >
GetText()->test_feedinput()
<
- Return type: |Number|
+ Return type: void


test_garbagecollect_now() *test_garbagecollect_now()*
@@ -75,13 +75,13 @@ test_garbagecollect_now() *test_garbagecollect_now()*
This will not work when called from a :def function, because
variables on the stack will be freed.

- Return type: |Number|
+ Return type: void

test_garbagecollect_soon() *test_garbagecollect_soon()*
Set the flag to call the garbagecollector as if in the main
loop. Only to be used in tests.

- Return type: |Number|
+ Return type: void

test_getvalue({name}) *test_getvalue()*
Get the value of an internal variable. These values for
@@ -237,7 +237,7 @@ test_ignore_error({expr}) *test_ignore_error()*
Can also be used as a |method|: >
GetErrorText()->test_ignore_error()
<
- Return type: |Number|
+ Return type: void

test_mswin_event({event}, {args}) *test_mswin_event()*
Generate a low-level MS-Windows {event} with arguments {args}
@@ -381,7 +381,7 @@ test_option_not_set({name}) *test_option_not_set()*
Can also be used as a |method|: >
GetOptionName()->test_option_not_set()
<
- Return type: |Number|
+ Return type: void

test_override({name}, {val}) *test_override()*
Overrides certain parts of Vim's internal processing to be
@@ -438,7 +438,7 @@ test_override({name}, {val}) *test_override()*
< Can also be used as a |method|: >
GetOverrideVal()-> test_override('starting')
<
- Return type: |Number|
+ Return type: void

test_refcount({expr}) *test_refcount()*
Return the reference count of {expr}. When {expr} is of a
@@ -457,7 +457,7 @@ test_setmouse({row}, {col}) *test_setmouse()*
call test_setmouse(4, 20)
call feedkeys("\<LeftMouse>", "xt")
<
- Return type: |Number|
+ Return type: void


test_settime({expr}) *test_settime()*
@@ -472,13 +472,13 @@ test_settime({expr}) *test_settime()*
Can also be used as a |method|: >
GetTime()->test_settime()
<
- Return type: |Number|
+ Return type: void

test_srand_seed([{seed}]) *test_srand_seed()*
When {seed} is given this sets the seed value used by
`srand()`. When omitted the test seed is removed.

- Return type: |Number|
+ Return type: void

test_unknown() *test_unknown()*
Return a value with unknown type. Only useful for testing.
diff --git a/runtime/doc/textprop.txt b/runtime/doc/textprop.txt
index fbe4231c7..f57a238e2 100644
--- a/runtime/doc/textprop.txt
+++ b/runtime/doc/textprop.txt
@@ -1,4 +1,4 @@
-*textprop.txt* For Vim version 9.2. Last change: 2026 Feb 14
+*textprop.txt* For Vim version 9.2. Last change: 2026 Apr 06


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -270,6 +270,8 @@ prop_add_list({props}, [{item}, ...]) *prop_add_list()*
<
Can also be used as a |method|: >
GetProp()->prop_add_list([[1, 1, 1, 2], [1, 4, 1, 8]])
+<
+ Return type: void


prop_clear({lnum} [, {lnum-end} [, {props}]]) *prop_clear()*
@@ -283,7 +285,7 @@ prop_clear({lnum} [, {lnum-end} [, {props}]]) *prop_clear()*
Can also be used as a |method|: >
GetLnum()->prop_clear()
<
- Return type: |Number|
+ Return type: void


prop_find({props} [, {direction}]) *prop_find()*
@@ -444,7 +446,7 @@ prop_type_add({name}, {props}) *prop_type_add()* *E969* *E970*
Can also be used as a |method|: >
GetPropName()->prop_type_add(props)
<
- Return type: |Number|
+ Return type: void


prop_type_change({name}, {props}) *prop_type_change()*
@@ -455,7 +457,7 @@ prop_type_change({name}, {props}) *prop_type_change()*
Can also be used as a |method|: >
GetPropName()->prop_type_change(props)
<
- Return type: |Number|
+ Return type: void


prop_type_delete({name} [, {props}]) *prop_type_delete()*
@@ -472,7 +474,7 @@ prop_type_delete({name} [, {props}]) *prop_type_delete()*
Can also be used as a |method|: >
GetPropName()->prop_type_delete()
<
- Return type: |Number|
+ Return type: void


prop_type_get({name} [, {props}]) *prop_type_get()*
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 42f580db5..b7e073bbe 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -2184,7 +2184,7 @@ static const funcentry_T global_functions[] =
{"environ", 0, 0, 0, NULL,
ret_dict_string, f_environ},
{"err_teapot", 0, 1, 0, NULL,
- ret_number_bool, f_err_teapot},
+ ret_void, f_err_teapot},
{"escape", 2, 2, FEARG_1, arg2_string,
ret_string, f_escape},
{"eval", 1, 1, FEARG_1, arg1_string,
diff --git a/src/version.c b/src/version.c
index ddf315372..6ef0b3864 100644
--- a/src/version.c
+++ b/src/version.c
@@ -734,6 +734,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 305,
/**/
304,
/**/