+local module = {}
+
+module.start = function(config)
+ -- Neovim's luaeval sometimes adds a Boolean key to table we need to remove.
+ if type(config.init_options) == "table"
+ and config.init_options[true] ~= nil
+ then
+ config.init_options[true] = nil
+ end
+
+ -- If configuring LSP via a socket connection, then generate the cmd
+ -- using vim.lsp.rpc.connect(), as defined in Neovim documentation.
+ if config.host then
+ local cmd_func = vim.lsp.rpc.connect(config.host, config.port)
+ config.host = nil
+ config.port = nil
+
+ -- Wrap the cmd function so we don't throw errors back to the user
+ -- if the connection to an address fails to start.
+ --
+ -- We will separately log in ALE that we failed to start a connection.
+ --
+ -- In older Neovim versions TCP connections do not function if supplied
+ -- a hostname instead of an address.
+ config.cmd = function(dispatch)
+ local success, result = pcall(cmd_func, dispatch)
+
+ if success then
+ return result
+ end
+
+ return nil
+ end
+ end
+
+ config.handlers = {
+ -- Override Neovim's handling of diagnostics to run through ALE's
+ -- functions so all of the functionality in ALE works.
+ ["textDocument/publishDiagnostics"] = function(err, result, _, _)
+ if err == nil then
+ vim.fn["ale#lsp_linter#HandleLSPDiagnostics"](
+ config.name,
+ result.uri,
+ result.diagnostics
+ )
+ end
+ end,
+ -- Handle pull model diagnostic data.
+ ["textDocument/diagnostic"] = function(err, result, request, _)
+ if err == nil then
+ local diagnostics
+
+ if result.kind == "unchanged" then
+ diagnostics = "unchanged"
+ else
+ diagnostics = result.items
+ end
+
+ vim.fn["ale#lsp_linter#HandleLSPDiagnostics"](
+ config.name,
+ request.params.textDocument.uri,
+ diagnostics
+ )
+ end
+ end,
+ -- When the pull model is enabled we have to handle and return
+ -- some kind of data for a server diagnostic refresh request.
+ ["workspace/diagnostic/refresh"] = function()
+ return {}
+ end,
+ }
+
+ config.on_init = function(client, _)
+ -- Tell ALE about server capabilities as soon as we can.
+ -- This will inform ALE commands what can be done with each server,
+ -- such as "go to definition" support, etc.
+ vim.fn["ale#lsp#UpdateCapabilities"](
+ config.name,
+ client.server_capabilities
+ )
+
+ -- Neovim calls `on_init` before marking a client as active, meaning
+ -- we can't get a client via get_client_by_id until after `on_init` is
+ -- called. By deferring execution of calling the init callbacks we
+ -- can only call them after the client becomes available, which
+ -- will make notifications for configuration changes work, etc.
+ vim.defer_fn(function()
+ vim.fn["ale#lsp#CallInitCallbacks"](config.name)
+ end, 0)
+ end
+
+ config.get_language_id = function(bufnr, _)
+ return vim.fn["ale#lsp#GetLanguage"](config.name, bufnr)
+ end
+
+ local capabilities = vim.lsp.protocol.make_client_capabilities()
+
+ -- Language servers like Pyright do not enable the diagnostics pull model
+ -- unless dynamicRegistration is enabled for diagnostics.
+ if capabilities.textDocument.diagnostic ~= nil then
+ capabilities.textDocument.diagnostic.dynamicRegistration = true
+ config.capabilities = capabilities
+ end
+
+ ---@diagnostic disable-next-line: missing-fields
+ return vim.lsp.start(config, {
+ attach = false,
+ silent = true,
+ })
+end
+
+module.buf_attach = function(args)
+ return vim.lsp.buf_attach_client(args.bufnr, args.client_id)
+end
+
+module.buf_detach = function(args)
+ return vim.lsp.buf_detach_client(args.bufnr, args.client_id)
+end
+
+-- Send a message to an LSP server.
+-- Notifications do not need to be handled.
+--
+-- Returns -1 when a message is sent, but no response is expected
+-- 0 when the message is not sent and
+-- >= 1 with the message ID when a response is expected.
+module.send_message = function(args)
+ local client = vim.lsp.get_client_by_id(args.client_id)
+
+ if client == nil then
+ return 0
+ end
+
+ if args.is_notification then
+ -- For notifications we send a request and expect no direct response.
+ local success = client.notify(args.method, args.params)
+
+ if success then
+ return -1
+ end
+
+ return 0
+ end
+
+ local success, request_id
+
+ -- For request we send a request and handle the response.
+ --
+ -- We set the bufnr to -1 to prevent Neovim from flushing anything, as ALE
+ -- already flushes changes to files before sending requests.
+ success, request_id = client.request(
+ args.method,
+ args.params,
+ ---@diagnostic disable-next-line: param-type-mismatch
+ function(_, result, _, _)
+ vim.fn["ale#lsp#HandleResponse"](client.name, {
+ id = request_id,
+ result = result,
+ })
+ end,
+ ---@diagnostic disable-next-line: param-type-mismatch
+ -1
+ )
+
+ if success then
+ return request_id
+ end
+
+ return 0
+end
+
+return module
projects / etc / vim.git / blobdiff