rneovim.git/runtime/lua/vim/lsp/client.lua, branch master

fix(lua): enable param-type-mismatch diagnostic

2026-09-28T13:43:14+00:00

Problem: Argument type mismatches are excluded from EmmyLua checks.

Solution: Correct runtime annotations and calls, document local checker
workarounds, and enable the diagnostic.

AI-assisted

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

perf(lua): share compatible file watchers

2026-09-24T19:36:55+00:00

Problem:

LSP servers can register identical file watchers before removing old
registrations. Each registration creates another watcher tree, making
setup and teardown expensive in large workspaces.

Solution:

Move glob compilation into vim._watch and accept rules for multiple
roots alongside existing single-path and LPeg inputs. Share compatible
backends until their last subscription is cancelled.

Ref: #23291

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: enable more EmmyLua checks

2026-09-08T15:50:53+00:00

- call-non-callable
- missing-fields
- redefined-label
- redefined-local
- undefined-field
- unreachable-code

Promote redefined-local and unreachable-code to warnings.

Fix DOS line-ending handling for multiline semantic tokens, and support
intersection types in the help parser.

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(lsp): ignore (and log once) invalid documentSelector globs #41055

2026-08-04T09:14:15+00:00

Problem:
Client:_get_registrations() errors if a documentSelector pattern is not
a valid glob (e.g. "**/**.dart" from dartls). The error discards
already-matched registrations and propagates to supports_method() and
the client/registerCapability handler, disabling capabilities unrelated
to the offending pattern.

Solution:
Skip invalid globs. Treat them as non-matching, and log once per client.

(Similar approach was taken for filewatcher globs: 4d9e5acfb5ee081b5b0761205c8a8c36ed7e49e5)