diff options
Diffstat (limited to 'runtime/lua/vim/lsp.lua')
| -rw-r--r-- | runtime/lua/vim/lsp.lua | 95 |
1 files changed, 62 insertions, 33 deletions
diff --git a/runtime/lua/vim/lsp.lua b/runtime/lua/vim/lsp.lua index 95d9c585ee..fad213212a 100644 --- a/runtime/lua/vim/lsp.lua +++ b/runtime/lua/vim/lsp.lua @@ -25,6 +25,27 @@ local lsp = { -- format_rpc_error = lsp_rpc.format_rpc_error; } +-- maps request name to the required resolved_capability in the client. +lsp._request_name_to_capability = { + ['textDocument/hover'] = 'hover'; + ['textDocument/signatureHelp'] = 'signature_help'; + ['textDocument/definition'] = 'goto_definition'; + ['textDocument/implementation'] = 'implementation'; + ['textDocument/declaration'] = 'declaration'; + ['textDocument/typeDefinition'] = 'type_definition'; + ['textDocument/documentSymbol'] = 'document_symbol'; + ['textDocument/workspaceSymbol'] = 'workspace_symbol'; + ['textDocument/prepareCallHierarchy'] = 'call_hierarchy'; + ['textDocument/rename'] = 'rename'; + ['textDocument/codeAction'] = 'code_action'; + ['workspace/executeCommand'] = 'execute_command'; + ['textDocument/references'] = 'find_references'; + ['textDocument/rangeFormatting'] = 'document_range_formatting'; + ['textDocument/formatting'] = 'document_formatting'; + ['textDocument/completion'] = 'completion'; + ['textDocument/documentHighlight'] = 'document_highlight'; +} + -- TODO improve handling of scratch buffers with LSP attached. --@private @@ -51,6 +72,16 @@ local function resolve_bufnr(bufnr) end --@private +--- callback called by the client when trying to call a method that's not +--- supported in any of the servers registered for the current buffer. +--@param method (string) name of the method +function lsp._unsupported_method(method) + local msg = string.format("method %s is not supported by any of the servers registered for the current buffer", method) + log.warn(msg) + return lsp.rpc_response_error(protocol.ErrorCodes.MethodNotFound, msg) +end + +--@private --- Checks whether a given path is a directory. --- --@param filename (string) path to check @@ -575,6 +606,15 @@ function lsp.start_client(config) -- These are the cleaned up capabilities we use for dynamically deciding -- when to send certain events to clients. client.resolved_capabilities = protocol.resolve_capabilities(client.server_capabilities) + client.supports_method = function(method) + local required_capability = lsp._request_name_to_capability[method] + -- if we don't know about the method, assume that the client supports it. + if not required_capability then + return true + end + + return client.resolved_capabilities[required_capability] + end if config.on_init then local status, err = pcall(config.on_init, client, result) if not status then @@ -598,19 +638,6 @@ function lsp.start_client(config) end --@private - --- Throws error for a method that is not supported by the current LSP - --- server. - --- - --@param method (string) an LSP method name not supported by the LSP server. - --@returns (error) a 'MethodNotFound' JSON-RPC error response. - local function unsupported_method(method) - local msg = "server doesn't support "..method - local _ = log.warn() and log.warn(msg) - err_message(msg) - return lsp.rpc_response_error(protocol.ErrorCodes.MethodNotFound, msg) - end - - --@private --- Sends a request to the server. --- --- This is a thin wrapper around {client.rpc.request} with some additional @@ -637,20 +664,6 @@ function lsp.start_client(config) or error(string.format("not found: %q request callback for client %q.", method, client.name)) end local _ = log.debug() and log.debug(log_prefix, "client.request", client_id, method, params, callback, bufnr) - -- TODO keep these checks or just let it go anyway? - if (not client.resolved_capabilities.hover and method == 'textDocument/hover') - or (not client.resolved_capabilities.signature_help and method == 'textDocument/signatureHelp') - or (not client.resolved_capabilities.goto_definition and method == 'textDocument/definition') - or (not client.resolved_capabilities.implementation and method == 'textDocument/implementation') - or (not client.resolved_capabilities.declaration and method == 'textDocument/declaration') - or (not client.resolved_capabilities.type_definition and method == 'textDocument/typeDefinition') - or (not client.resolved_capabilities.document_symbol and method == 'textDocument/documentSymbol') - or (not client.resolved_capabilities.workspace_symbol and method == 'textDocument/workspaceSymbol') - or (not client.resolved_capabilities.call_hierarchy and method == 'textDocument/prepareCallHierarchy') - then - callback(unsupported_method(method), method, nil, client_id, bufnr) - return - end return rpc.request(method, params, function(err, result) callback(err, method, result, client_id, bufnr) end) @@ -997,16 +1010,32 @@ function lsp.buf_request(bufnr, method, params, callback) callback = { callback, 'f', true }; } local client_request_ids = {} - for_each_buffer_client(bufnr, function(client, client_id, resolved_bufnr) - local request_success, request_id = client.request(method, params, callback, resolved_bufnr) - -- This could only fail if the client shut down in the time since we looked - -- it up and we did the request, which should be rare. - if request_success then - client_request_ids[client_id] = request_id + local method_supported = false + for_each_buffer_client(bufnr, function(client, client_id, resolved_bufnr) + if client.supports_method(method) then + method_supported = true + local request_success, request_id = client.request(method, params, callback, resolved_bufnr) + + -- This could only fail if the client shut down in the time since we looked + -- it up and we did the request, which should be rare. + if request_success then + client_request_ids[client_id] = request_id + end end end) + -- if no clients support the given method, call the callback with the proper + -- error message. + if not method_supported then + local unsupported_err = lsp._unsupported_method(method) + local cb = callback or lsp.callbacks['method'] + if cb then + cb(unsupported_err, method, bufnr) + end + return + end + local function _cancel_all_requests() for client_id, request_id in pairs(client_request_ids) do local client = active_clients[client_id] |