From 113e6f1bd64373ec20640ea46c9e9c3e4d898a75 Mon Sep 17 00:00:00 2001
From: Turiiya <34311583+ttytm@users.noreply.github.com>
Date: Wed, 27 Nov 2024 17:33:42 +0100
Subject: [PATCH] lsp(rust): work around server cancelled request issue with
 latest rust

Ref.: https://github.com/neovim/neovim/issues/30985#issuecomment-2447329525
---
 lua/nxvim/lsp/plugins/mason/lspconfig.lua | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lua/nxvim/lsp/plugins/mason/lspconfig.lua b/lua/nxvim/lsp/plugins/mason/lspconfig.lua
index 4b70ffa..793ef56 100644
--- a/lua/nxvim/lsp/plugins/mason/lspconfig.lua
+++ b/lua/nxvim/lsp/plugins/mason/lspconfig.lua
@@ -42,6 +42,14 @@ mason_lspconfig.setup_handlers({
 			server_opts.root_dir = lspconfig.util.root_pattern("deno.json", "deno.jsonc")
 		elseif server == "jsonls" then
 			server_opts.init_options = { provideFormatter = false } -- Use prettierd as formatter.
+		elseif server == "rust_analyzer" then
+			for _, method in ipairs({ "textDocument/diagnostic", "workspace/diagnostic" }) do
+				local default_diagnostic_handler = vim.lsp.handlers[method]
+				vim.lsp.handlers[method] = function(err, result, context, config)
+					if err ~= nil and err.code == -32802 then return end
+					return default_diagnostic_handler(err, result, context, config)
+				end
+			end
 		elseif server == "zls" then
 			vim.g.zig_fmt_autosave = 0
 		end