fix: config validation fails if server.settings option is a table

CHANGELOG.md

@@ -1,68 +1,87 @@
-<!-- markdownlint-disable -->
+<!-- markdownlint-disable MD024 -->
 # Changelog
+
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.5.1] - 2023-11-13
+
+### Fixed
+
+- Config validation fails if `server.settings` option is a table [[#56](https://github.com/mrcjkb/rustaceanvim/issues/56)].
+
 ## [3.5.0] - 2023-11-11
 
-## Added
+### Added
 
 - Ability to load rust-analyzer settings from project-local JSON files.
 
 ## [3.4.2] - 2023-11-11
 
-## Fixed
+### Fixed
 
 - Open external docs broken in Neovim 0.9 [[#50](https://github.com/mrcjkb/rustaceanvim/issues/50)].
 
 ## [3.4.1] - 2023-11-10
 
-## Fixed
+### Fixed
 
 - Command completion broken in Neovim 0.9 [[#47](https://github.com/mrcjkb/rustaceanvim/issues/47)].
 
 ## [3.4.0] - 2023-11-01
 
-## Added
+### Added
+
 - Auto-create `codelldb` configurations.
 
-## Fixed
+### Fixed
+
 - DAP: Support `codelldb` configurations [[#40](https://github.com/mrcjkb/rustaceanvim/issues/40)].
-- DAP: Don't pass in an empty source map table if the 
+- DAP: Don't pass in an empty source map table if the
   `auto_generate_source_map` setting evaluates to `false`.
 
 ## [3.3.3] - 2023-10-31
+
+### Fixed
+
 - Default rust-analyzer configuration [[#37](https://github.com/mrcjkb/rustaceanvim/issues/37)].
   Thanks again, [@eero-lehtinen](https://github.com/eero-lehtinen)!
 
 ## [3.3.2] - 2023-10-31
-## Fixed
+
+### Fixed
+
 - Cargo workspace reload using removed command [[#36](https://github.com/mrcjkb/rustaceanvim/pull/36)].
   Thanks [@eero-lehtinen](https://github.com/eero-lehtinen)!
 
 ## [3.3.1] - 2023-10-31
 
-## Fixed
+### Fixed
+
 - Neovim 0.9 compatibility layer: Missing `nil` checks [[#32](https://github.com/mrcjkb/rustaceanvim/issues/32)].
 
 ## [3.3.0] - 2023-10-30
 
 ### Added
+
 - DAP: Auto-generate source map, to allow stepping into `std`.
 
 ## [3.2.1] - 2023-10-29
 
 ### Fixed
+
 - `dap`/`quickfix` executor: Fix setting `cwd` for shell commands.
 
 ## [3.2.0] - 2023-10-29
 
 ### Added
+
 - Completions for `:RustLsp` subcommands' arguments.
 
 ### Changed
+
 - Removed `plenary.nvim` dependency (`dap` and `quickfix` executor).
   This plugin now has no `plenary.nvim` dependencies left.
   NOTE: As this does **not** lead to a bump in the minimal requirements,
@@ -71,47 +90,56 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [3.1.1] - 2023-10-28
 
 ### Fixed
-- Remove accidental use of Neovim nightly API (`dap`, `crateGraph`, `explainError`) [[#26](https://github.com/mrcjkb/rustaceanvim/issues/26)].
+
+- Remove accidental use of Neovim nightly API
+  (`dap`, `crateGraph`, `explainError`) [[#26](https://github.com/mrcjkb/rustaceanvim/issues/26)].
 - Add static type checking for Neovim stable API.
 
 ## [3.1.0] - 2023-10-28
 
 ### Added
+
 - `:RustLsp explainError` command, uses `rustc --explain` on error diagnostics with
   an error code.
 - `:RustLsp rebuildProcMacros` command.
 
 ### Fixed
+
 - Health check got stuck if `lldb-vscode` was installed.
 
 ## [3.0.4] - 2023-10-25
 
 ### Fixed
+
 - Allow `:RustLsp hover range` to accept a range.
 - Fix `:RustLsp crateGraph` passing arguments as list.
 
 ## [3.0.3] - 2023-10-25
 
 ### Fixed
+
 - Potential attempt to index `nil` upvalue when sending `workspace/didChangeWorkspaceFolders`
   to LSP server [[#22](https://github.com/mrcjkb/rustaceanvim/issues/22)].
 
 ## [3.0.2] - 2023-10-23
 
 ### Fixed
-- Hover actions: Tree-sitter syntax highlighting 
+
+- Hover actions: Tree-sitter syntax highlighting
   in Neovim 0.9 [[#20](https://github.com/mrcjkb/rustaceanvim/issues/20)].
 
 ## [3.0.1] - 2023-10-23
 
 ### Fixed
+
 - Add support for `workspace/didChangeWorkspaceFolders` to prevent more than one
   rust-analyzer server from spawning per Neovim instance [[#7](https://github.com/mrcjkb/rustaceanvim/issues/7)].
 - Neovim 0.9 compatibility [[#9](https://github.com/mrcjkb/rustaceanvim/issues/9)].
 
 ## [3.0.0] - 2023-10-22
 
 ### Changed
+
 - Renamed this plugin to `rustaceanvim`,
   to avoid potential clashes with [`vxpm/ferris.nvim`](https://github.com/vxpm/ferris.nvim),
   `vxpm/ferris.nvim` was created just before I renamed my fork
@@ -120,6 +148,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [2.1.1] - 2023-10-22
 
 ### Fixed
+
 - Open external docs: Use `xdg-open` or `open` (MacOS) by default
   and fall back to `netrw`.
   Remove redundant URL encoding.
@@ -142,22 +171,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [2.0.0] - 2023-10-21
 
 ### Breaking changes
+
 - Don't pollute the command space:
   Use a single command with subcommands and completions.
-  - `RustAnalyzer [start|stop]` 
+  - `RustAnalyzer [start|stop]`
     (always available in Rust projects)
-  - `RustLsp [subcommand]` 
+  - `RustLsp [subcommand]`
     (available when the LSP client is running)
     e.g. `RustLsp moveItem [up|down]`
 
 ## [1.0.1] - 2023-10-21
 
 ### Fixed
+
 - Hover actions + command cache: module requires.
 
 ## [1.0.0] - 2023-10-21
 
 ### Added
+
 - Initial release of `rustaceanvim`.
 - `:RustSyntaxTree` and `:RustFlyCheck` commands.
 - `:RustAnalyzerStart` and `:RustAnalyzerStop` commands.
@@ -170,18 +202,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Minimal config for troubleshooting.
 
 ### Internal
+
 - Added type annotations.
 - Nix CI and linting infrastructure and static type checking.
 - Lazy load command modules.
 
 ### Fixed
+
 - Numerous potential bugs encountered during rewrite.
 - Erroneous semantic token highlights.
 - Make sure we only send LSP requests to the correct client.
 
 ### Breaking changes compared to `rust-tools.nvim`
-- [Removed the `setup` function](https://mrcjkb.dev/posts/2023-08-22-setup.html) and revamped the architecture
-  to be less prone to type errors.
+
+- [Removed the `setup` function](https://mrcjkb.dev/posts/2023-08-22-setup.html)
+  and revamped the architecture to be less prone to type errors.
   This plugin is a filetype plugin and works out of the box.
   The default configuration should work for most people,
   but it can be configured with a `vim.g.rustaceanvim` table.

lua/rustaceanvim/config/check.lua

@@ -63,7 +63,7 @@ function M.validate(cfg)
   ok, err = validate('server', {
     cmd = { server.cmd, { 'function', 'table' } },
     standalone = { server.standalone, 'boolean' },
-    settings = { server.settings, 'function', 'table', true },
+    settings = { server.settings, { 'function', 'table' }, true },
   })
   if not ok then
     return false, err

spec/56_spec.lua

@@ -0,0 +1,28 @@
+local stub = require('luassert.stub')
+local notify = stub(vim, 'notify')
+
+describe('#56-non-regression: server.settings is table', function()
+  vim.g.rustaceanvim = {
+    server = {
+      settings = {
+        ['rust-analyzer'] = {
+          cargo = { allFeatures = true },
+          checkOnSave = true,
+          check = {
+            enable = true,
+            command = 'clippy',
+            features = 'all',
+          },
+          procMacro = {
+            enable = true,
+          },
+        },
+      },
+    },
+  }
+  it('No errors or warning on config initialization', function()
+    local ok, err = pcall(require, 'rustaceanvim.config.internal')
+    assert(ok, 'Error on initialization: ' .. vim.inspect(err))
+    assert.stub(notify).was_not_called()
+  end)
+end)