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0d4d285bd2c19697164175280b32bf93e3a7b1da
neovim/runtime/doc
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Justin M. Keyes 0d4d285bd2 perf(vim.fn): call Lua-implemented vim.fn.xx() directly #39166 
Problem:
- Builtin "Vimscript" functions (f_xx) are mostly implemented in C.
  Partly that's because there is some boilerplate required to call out
  to Lua.
- Calls to `vim.fn.foo()` always marshall over the Lua <=> Vimscript
  ("typval") bridge, even if `fn.foo()` is implemented entirely in Lua:
  ```
  Lua => typval => Object => Lua => Object => typval => Lua.
  ```

Solution:
Functions declared in eval.lua with `func_lua` are implemented in
entirely in Lua (`_core/vimfn.lua`).

- `gen_eval.lua` wires `func_lua` entries to `lua_wrapper`, which handles
  the typval conversion for Vimscript callers (slow path).
- `nlua_call()` detects `func_lua` functions and calls the Lua
  implementation directly. This eliminates all conversion overhead for
  Lua callers (fast path).
- Validate at build-time that `func`, `func_float`, and `func_lua` are
  mutually exclusive.
- Migrate `hostname()` as a toy example, to show the idea.
2026-04-17 19:10:20 -04:00
..
api-ui-events.txt
fix(:connect): formalize connect event #38543
2026-03-29 06:59:34 -04:00
api.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
autocmd.txt
test: include test path in summary (#39141)
2026-04-17 21:20:36 +08:00
change.txt
docs: misc (#38578)
2026-04-01 07:59:51 +08:00
channel.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
cmdline.txt
vim-patch:8.2.2440: documentation based on patches is outdated (#39144)
2026-04-17 09:50:03 +08:00
credits.txt
vim-patch:9.1.1933: completion: complete_match() is not useful (#36726)
2025-11-28 10:10:31 +08:00
deprecated.txt
feat(api): rename buffer to buf in retval #38900
2026-04-13 12:42:26 -04:00
dev_arch.txt
perf(vim.fn): call Lua-implemented vim.fn.xx() directly #39166
2026-04-17 19:10:20 -04:00
dev_style.txt
docs: lsp, options, promptbuf
2026-02-12 13:46:45 +01:00
dev_test.txt
test: replace busted with local harness
2026-04-15 12:09:25 +01:00
dev_theme.txt
docs: news
2024-05-15 23:19:26 +02:00
dev_tools.txt
test: replace busted with local harness
2026-04-15 12:09:25 +01:00
dev_vimpatch.txt
build(vim-patch): update Vim N/A file/regexp (#37049)
2026-01-04 14:15:23 +08:00
dev.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
diagnostic.txt
docs(diagnostic): severity names are sometimes allowed #39120
2026-04-16 10:32:35 -04:00
diff.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
digraph.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
editing.txt
feat(ex): add :log command
2026-04-10 11:08:26 -05:00
faq.txt
fix(ux): drop "Sorry" from messages #38318
2026-03-16 07:46:34 -04:00
filetype.txt
vim-patch:86dcb18: Revert "runtime(jjdescription): allow to configure summary width" (#39011)
2026-04-13 22:26:56 +08:00
fold.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
ft_ada.txt
docs: misc
2025-12-06 20:33:02 -05:00
ft_hare.txt
docs: treesitter parse errors #33811
2025-05-03 10:08:53 -07:00
ft_ps1.txt
docs: treesitter parse errors #33811
2025-05-03 10:08:53 -07:00
ft_raku.txt
fix(docs): vimdoc syntax errors
2023-06-25 17:14:28 +02:00
ft_rust.txt
vim-patch:880cf88: runtime(doc): Various fixes for ft_rust.txt (tw78, grammar, spaces) (#38730)
2026-04-03 21:38:44 +08:00
ft_sql.txt
docs: drop "xx.vim" syntax help-tags #35623
2025-09-07 20:45:22 -07:00
gui.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
health.txt
feat(checkhealth): trigger FileType event after showing report #33677
2025-04-27 10:32:25 -07:00
help.txt
refactor(help): move local-additions to Lua #37831
2026-02-14 05:30:18 -05:00
helphelp.txt
feat(help): super K (":help!") guesses tag at cursor #36205
2026-03-15 19:02:49 -04:00
if_perl.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
if_pyth.txt
vim-patch:faad250: runtime(doc): Fix typo in if_pyth.txt (#38362)
2026-03-19 11:10:54 +08:00
if_ruby.txt
docs: misc #37357
2026-01-27 17:14:57 -05:00
indent.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
index.txt
feat(ex): add :log command
2026-04-10 11:08:26 -05:00
insert.txt
docs: lsp, options, api #38980
2026-04-14 06:09:54 -04:00
intro.txt
docs: remove ICCF Holland URL (#37230)
2026-01-09 16:38:26 +08:00
job_control.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
l10n-arabic.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
l10n-hebrew.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
l10n-russian.txt
vim-patch:17bba75: runtime(doc): Fix overlength lines in :help {russian,vietnamese}.txt
2026-01-26 07:05:42 +08:00
l10n-vietnamese.txt
vim-patch:17bba75: runtime(doc): Fix overlength lines in :help {russian,vietnamese}.txt
2026-01-26 07:05:42 +08:00
lsp.txt
refactor(lsp): provide a default list handler example #39005
2026-04-16 15:15:04 -04:00
lua-bit.txt
docs: change lua-bit to new layout #38447
2026-03-23 17:41:48 -04:00
lua-guide.txt
fix(lua): drop support for boolean buf in vim.keymap #38432
2026-03-23 08:00:53 -04:00
lua-plugin.txt
docs: news #38583
2026-03-29 20:53:24 -04:00
lua.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
luaref.txt
feat(docs): numbered listitems
2025-12-15 13:55:15 -05:00
luvref.txt
build(deps): bump luv to 1.52.1-0
2026-03-16 10:29:58 +01:00
map.txt
docs: lsp, options, promptbuf
2026-02-12 13:46:45 +01:00
mbyte.txt
vim-patch:8.2.2440: documentation based on patches is outdated (#39144)
2026-04-17 09:50:03 +08:00
message.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
mlang.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
motion.txt
vim-patch:9e456e5: runtime(doc): clarify the use of 'iskeyword' option value
2026-02-10 06:44:30 +08:00
news-0.9.txt
docs: json, tests, lsp #35754
2025-09-28 20:57:59 -07:00
news-0.10.txt
fix(lsp): deprecate vim.lsp.protocol.Methods (#35998)
2025-10-04 21:09:13 -07:00
news-0.11.txt
docs(quickfix): fix tag format for CTRL mappings #37793
2026-02-09 12:13:24 -05:00
news-0.12.txt
feat(:restart): reattach all UIs (#38683)
2026-04-02 20:57:02 +08:00
news.txt
perf(vim.fn): call Lua-implemented vim.fn.xx() directly #39166
2026-04-17 19:10:20 -04:00
nvim.txt
docs: api, plugins, ui2
2026-03-24 00:14:55 +01:00
options.txt
vim-patch:8.2.2440: documentation based on patches is outdated (#39144)
2026-04-17 09:50:03 +08:00
pack.txt
docs(pack): improve "Synchronize across machines" steps #39122
2026-04-16 10:33:20 -04:00
pattern.txt
vim-patch:8.2.2440: documentation based on patches is outdated (#39144)
2026-04-17 09:50:03 +08:00
pi_gzip.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
pi_msgpack.txt
feat(docs): numbered listitems
2025-12-15 13:55:15 -05:00
pi_paren.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
pi_spec.txt
docs: fix treesitter parsing errors
2023-01-01 15:05:13 +01:00
pi_tar.txt
vim-patch:e6a84bb: runtime(tar): missing g:tar_secure in tar#Extract() (#39123)
2026-04-16 22:19:48 +08:00
pi_tutor.txt
vim-patch:5a8f995: runtime(doc): remove outdated Contribution section in pi_tutor (#34094)
2025-05-20 00:21:30 +00:00
pi_zip.txt
vim-patch:9.2.0299: runtime(zip): may write using absolute paths (#38810)
2026-04-06 10:15:19 +08:00
plugins.txt
docs: misc
2026-04-12 14:17:50 +02:00
provider.txt
docs: setting g:clipboard after provider init #37705
2026-02-04 13:53:08 -05:00
quickfix.txt
docs(quickfix): fix tag format for CTRL mappings #37793
2026-02-09 12:13:24 -05:00
quickref.txt
docs: misc
2026-03-11 18:24:57 +01:00
recover.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
remote_plugin.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
remote.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
repeat.txt
docs: starting.txt new layout
2026-03-22 01:57:28 +01:00
rileft.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
scroll.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
sign.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
spell.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
starting.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
support.txt
docs: bump minimum required Win 10 to version 2004
2026-04-05 18:22:59 +02:00
syntax.txt
vim-patch:c9eaff0: runtime(java): Make changes for JDK 26 (#38452)
2026-03-24 00:01:43 +00:00
tabpage.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
tagsrch.txt
docs(quickfix): fix tag format for CTRL mappings #37793
2026-02-09 12:13:24 -05:00
terminal.txt
docs: misc, terminal
2026-03-18 20:40:20 +01:00
tips.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
treesitter.txt
docs: misc #38584
2026-04-01 17:04:41 -04:00
tui.txt
feat(tui): ghostty builtin terminfo #36963
2025-12-15 02:07:51 -05:00
uganda.txt
docs: misc (#37280)
2026-01-07 08:11:42 +08:00
undo.txt
docs: api, plugins, ui2
2026-03-24 00:14:55 +01:00
userfunc.txt
vim-patch:8.2.2440: documentation based on patches is outdated (#39144)
2026-04-17 09:50:03 +08:00
usr_01.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_02.txt
vim-patch:partial:8ee0e0b: runtime(doc): Fix to two-space convention in user manual
2026-02-13 16:39:18 +08:00
usr_03.txt
docs: misc
2025-12-06 20:33:02 -05:00
usr_04.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_05.txt
docs: misc
2026-04-12 14:17:50 +02:00
usr_06.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_07.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_08.txt
vim-patch:712b650: runtime(doc): Fix typo in "Jumping to Changes", usr_08.txt (#36707)
2025-11-27 07:49:44 +08:00
usr_09.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_10.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_11.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_12.txt
docs: misc
2026-04-12 14:17:50 +02:00
usr_20.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_21.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_22.txt
vim-patch:9bf9d43: runtime(doc): various netrw related corrections
2026-02-13 16:39:18 +08:00
usr_23.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_24.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_25.txt
docs: usr_25.txt formatting
2026-03-11 12:39:49 +01:00
usr_26.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_27.txt
docs: misc, editorconfig
2025-12-15 13:55:15 -05:00
usr_28.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_29.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_30.txt
vim-patch:afd46fd: runtime(doc): Correct typo in usr_30.txt regarding softtabstop (#36742)
2025-11-29 00:22:24 +00:00
usr_31.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_32.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_40.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_41.txt
vim-patch:8.2.2958: function list test fails
2026-04-11 02:47:31 -04:00
usr_42.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_43.txt
vim-patch:partial:8ee0e0b: runtime(doc): Fix to two-space convention in user manual
2026-02-13 16:39:18 +08:00
usr_44.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_45.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
usr_toc.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
various.txt
test: lint EXX error codes #8155
2026-04-16 10:48:11 -04:00
vi_diff.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
vim_diff.txt
feat(completion): completeopt=preselect, LSP CompletionItem.preselect #36613
2026-04-13 05:59:07 -04:00
vimeval.txt
vim-patch:8.2.2440: documentation based on patches is outdated (#39144)
2026-04-17 09:50:03 +08:00
vimfn.txt
perf(vim.fn): call Lua-implemented vim.fn.xx() directly #39166
2026-04-17 19:10:20 -04:00
visual.txt
vim-patch:5427465: runtime(doc): Clean up file header whitespace
2025-11-10 11:13:56 +08:00
vvars.txt
docs: news #38464
2026-03-28 09:59:54 -04:00
windows.txt
vim-patch:48cee53: runtime(doc): Clarify :bd behaviour
2026-02-14 07:59:51 +08:00