rneovim.git/runtime/lua/vim/treesitter/query.lua, branch extregs

fix(lua): enable unnecessary-assert diagnostic

2026-09-28T09:14:17+00:00

AI-assisted

fix(lua): enable assignment type checking in runtime code

2026-09-25T16:07:21+00:00

Enable EmmyLua's assign-type-mismatch diagnostic after correcting the
runtime annotations and assignments it flags.

Correct option, tuple, and return types, and use separate locals when a
value changes representation. Add guards and narrow casts where needed
so the runtime passes the stricter check. Regenerate the affected docs.

AI-assisted

fix(lua): enable nil-safety diagnostics in runtime code

2026-09-25T09:28:19+00:00

Enable EmmyLua's need-check-nil diagnostic and resolve nullable values
through more precise types, explicit invariants, and guards for missing
runtime state. Keep analyzer-specific workarounds local and update the
affected API documentation.

Exclude the bundled re.lua from analysis so its nil-check warnings do
not fail CI.

AI-assisted

fix(lua): add missing param annotations (#41911)

2026-09-15T13:14:21+00:00

build: enable more EmmyLua checks

2026-09-09T21:31:58+00:00

Enable checks for unused code, deprecated calls, return types, and
annotations.

Fix the warnings and replace the deprecated highlight function. Keep
exceptions where old APIs are still needed or the checker gets it wrong.

AI-assisted

build: replace LuaLS with EmmyLua

2026-09-07T14:33:22+00:00

Problem: LuaLS struggles with the generics used in Nvim's runtime,
requiring broad diagnostic suppressions. Indexing is also slow.

Solution: Use EmmyLua for type checks in the build and CI. It offers
more sophisticated type checking, substantially better support for
generics, and much better flow analysis.

Correct the affected annotations. Use `@internal`, supported directly by
EmmyLua, instead of `@nodoc` for shared internal declarations, and
support it in the help parser.

AI-assisted

fix(treesitter): #has-parent? errors on a node with no parent

2026-09-06T16:27:02+00:00

Problem:
The #has-parent? predicate indexes the result of node:parent() without
checking it, so a capture that matches a tree's root node raises

    query.lua:600: attempt to index a nil value

instead of simply not matching. In a highlights query that breaks
highlighting for the whole buffer. The sibling #has-ancestor? predicate
handles the same situation.

Solution:
Treat a missing parent as "does not match".

AI-assisted

feat(options): lua closure/function options

2026-07-31T19:50:04+00:00

Problem:
Cannot assign Lua functions/closures to "func" ('completefunc',
'tagfun', …) or "expr" ('foldexpr', 'indentexpr', …) options.

Solution:
- Store "func"/"expr" options as `Callback` instead of string.
- Delete oceans of copy-pasted code.
- BREAKING: LuaRef returned via RPC/Vimscript is now represented as
  `""` (like what `:map` shows) instead of `nil`.
- Note: `man.vim` still uses `v:lua` string, bc it's a vimscript ftplugin.

Helped-by: Lewis Russell

refactor: introduce nvim_on internally #39883

2026-05-20T21:33:01+00:00

Problem:
`nvim_create_autocmd` is too verbose and its `callback` requires extra
"nesting".

Solution:
Introduce `nvim_on`. Start using it internally. Then we can get a feel
for how it should look before making it public.

docs: dev, lsp, indent-guides #39756

2026-05-14T17:13:30+00:00

- document "indent guides" https://github.com/neovim/neovim/issues/39726
- document guidance for "subcommands" https://github.com/neovim/neovim/issues/32263#issuecomment-4436002808

Co-authored-by: glepnir 
Co-authored-by: Noa Levi <275430404+lphuc2250gma@users.noreply.github.com>