fix(lsp): prevent nil upvalue index on workspace folder change (#23)

CHANGELOG.md

@@ -5,18 +5,23 @@ 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).
 
+## [3.0.3] - 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 
-  in Neovim 0.9 [#20](https://github.com/mrcjkb/rustaceanvim/issues/20).
+  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).
+  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
 

lua/rustaceanvim/lsp.lua

@@ -1,7 +1,6 @@
 local M = {}
 ---@type RustaceanConfig
 local config = require('rustaceanvim.config.internal')
-local methods = require('vim.lsp.protocol').Methods
 local compat = require('rustaceanvim.compat')
 local rust_analyzer = require('rustaceanvim.rust_analyzer')
 local joinpath = compat.joinpath
@@ -107,7 +106,7 @@ M.start = function()
           removed = {},
         },
       }
-      client.rpc.notify(methods.workspace_didChangeWorkspaceFolders, params)
+      client.rpc.notify('workspace/didChangeWorkspaceFolders', params)
       if not client.workspace_folders then
         client.workspace_folders = {}
       end