diff options
Diffstat (limited to 'runtime/lua/vim')
| -rw-r--r-- | runtime/lua/vim/lsp.lua | 198 | ||||
| -rw-r--r-- | runtime/lua/vim/lsp/buf.lua | 349 | ||||
| -rw-r--r-- | runtime/lua/vim/lsp/builtin_callbacks.lua | 296 | ||||
| -rw-r--r-- | runtime/lua/vim/lsp/default_callbacks.lua | 69 | ||||
| -rw-r--r-- | runtime/lua/vim/lsp/protocol.lua | 14 | ||||
| -rw-r--r-- | runtime/lua/vim/lsp/rpc.lua | 1 | ||||
| -rw-r--r-- | runtime/lua/vim/lsp/util.lua | 335 | ||||
| -rw-r--r-- | runtime/lua/vim/shared.lua | 31 | ||||
| -rw-r--r-- | runtime/lua/vim/uri.lua | 7 |
9 files changed, 737 insertions, 563 deletions
diff --git a/runtime/lua/vim/lsp.lua b/runtime/lua/vim/lsp.lua index 0c1a145c04..928d19177a 100644 --- a/runtime/lua/vim/lsp.lua +++ b/runtime/lua/vim/lsp.lua @@ -1,9 +1,10 @@ -local builtin_callbacks = require 'vim.lsp.builtin_callbacks' +local default_callbacks = require 'vim.lsp.default_callbacks' local log = require 'vim.lsp.log' local lsp_rpc = require 'vim.lsp.rpc' local protocol = require 'vim.lsp.protocol' local util = require 'vim.lsp.util' +local vim = vim local nvim_err_writeln, nvim_buf_get_lines, nvim_command, nvim_buf_get_option = vim.api.nvim_err_writeln, vim.api.nvim_buf_get_lines, vim.api.nvim_command, vim.api.nvim_buf_get_option local uv = vim.loop @@ -12,7 +13,8 @@ local validate = vim.validate local lsp = { protocol = protocol; - builtin_callbacks = builtin_callbacks; + default_callbacks = default_callbacks; + buf = require'vim.lsp.buf'; util = util; -- Allow raw RPC access. rpc = lsp_rpc; @@ -25,6 +27,11 @@ local lsp = { -- TODO improve handling of scratch buffers with LSP attached. +local function err_message(...) + nvim_err_writeln(table.concat(vim.tbl_flatten{...})) + nvim_command("redraw") +end + local function resolve_bufnr(bufnr) validate { bufnr = { bufnr, 'n', true } } if bufnr == nil or bufnr == 0 then @@ -92,11 +99,7 @@ local function for_each_buffer_client(bufnr, callback) return end for client_id in pairs(client_ids) do - -- This is unlikely to happen. Could only potentially happen in a race - -- condition between literally a single statement. - -- We could skip this error, but let's error for now. local client = active_clients[client_id] - -- or error(string.format("Client %d has already shut down.", client_id)) if client then callback(client, client_id) end @@ -154,13 +157,13 @@ local function validate_client_config(config) root_dir = { config.root_dir, is_dir, "directory" }; callbacks = { config.callbacks, "t", true }; capabilities = { config.capabilities, "t", true }; - -- cmd = { config.cmd, "s", false }; cmd_cwd = { config.cmd_cwd, optional_validator(is_dir), "directory" }; cmd_env = { config.cmd_env, "f", true }; name = { config.name, 's', true }; on_error = { config.on_error, "f", true }; on_exit = { config.on_exit, "f", true }; on_init = { config.on_init, "f", true }; + before_init = { config.before_init, "f", true }; offset_encoding = { config.offset_encoding, "s", true }; } local cmd, cmd_args = validate_command(config.cmd) @@ -261,6 +264,12 @@ end -- possible errors. `vim.lsp.client_errors[code]` can be used to retrieve a -- human understandable string. -- +-- before_init(initialize_params, config): A function which is called *before* +-- the request `initialize` is completed. `initialize_params` contains +-- the parameters we are sending to the server and `config` is the config that +-- was passed to `start_client()` for convenience. You can use this to modify +-- parameters before they are sent. +-- -- on_init(client, initialize_result): A function which is called after the -- request `initialize` is completed. `initialize_result` contains -- `capabilities` and anything else the server may send. For example, `clangd` @@ -290,19 +299,19 @@ function lsp.start_client(config) local client_id = next_client_id() - local callbacks = tbl_extend("keep", config.callbacks or {}, builtin_callbacks) - -- Copy metatable if it has one. - if config.callbacks and config.callbacks.__metatable then - setmetatable(callbacks, getmetatable(config.callbacks)) - end + local callbacks = config.callbacks or {} local name = config.name or tostring(client_id) local log_prefix = string.format("LSP[%s]", name) local handlers = {} + local function resolve_callback(method) + return callbacks[method] or default_callbacks[method] + end + function handlers.notification(method, params) local _ = log.debug() and log.debug('notification', method, params) - local callback = callbacks[method] + local callback = resolve_callback(method) if callback then -- Method name is provided here for convenience. callback(nil, method, params, client_id) @@ -311,7 +320,7 @@ function lsp.start_client(config) function handlers.server_request(method, params) local _ = log.debug() and log.debug('server_request', method, params) - local callback = callbacks[method] + local callback = resolve_callback(method) if callback then local _ = log.debug() and log.debug("server_request: found callback for", method) return callback(nil, method, params, client_id) @@ -322,12 +331,12 @@ function lsp.start_client(config) function handlers.on_error(code, err) local _ = log.error() and log.error(log_prefix, "on_error", { code = lsp.client_errors[code], err = err }) - nvim_err_writeln(string.format('%s: Error %s: %q', log_prefix, lsp.client_errors[code], vim.inspect(err))) + err_message(log_prefix, ': Error ', lsp.client_errors[code], ': ', vim.inspect(err)) if config.on_error then local status, usererr = pcall(config.on_error, code, err) if not status then local _ = log.error() and log.error(log_prefix, "user on_error failed", { err = usererr }) - nvim_err_writeln(log_prefix.." user on_error failed: "..tostring(usererr)) + err_message(log_prefix, ' user on_error failed: ', tostring(usererr)) end end end @@ -335,9 +344,19 @@ function lsp.start_client(config) function handlers.on_exit(code, signal) active_clients[client_id] = nil uninitialized_clients[client_id] = nil - for _, client_ids in pairs(all_buffer_active_clients) do + local active_buffers = {} + for bufnr, client_ids in pairs(all_buffer_active_clients) do + if client_ids[client_id] then + table.insert(active_buffers, bufnr) + end client_ids[client_id] = nil end + -- Buffer level cleanup + vim.schedule(function() + for _, bufnr in ipairs(active_buffers) do + util.buf_clear_diagnostics(bufnr) + end + end) if config.on_exit then pcall(config.on_exit, code, signal, client_id) end @@ -379,7 +398,6 @@ function lsp.start_client(config) -- The rootUri of the workspace. Is null if no folder is open. If both -- `rootPath` and `rootUri` are set `rootUri` wins. rootUri = vim.uri_from_fname(config.root_dir); --- rootUri = vim.uri_from_fname(vim.fn.expand("%:p:h")); -- User provided initialization options. initializationOptions = config.init_options; -- The capabilities provided by the client (editor or tool) @@ -403,11 +421,15 @@ function lsp.start_client(config) -- } workspaceFolders = nil; } + if config.before_init then + -- TODO(ashkan) handle errors here. + pcall(config.before_init, initialize_params, config) + end local _ = log.debug() and log.debug(log_prefix, "initialize_params", initialize_params) rpc.request('initialize', initialize_params, function(init_err, result) assert(not init_err, tostring(init_err)) assert(result, "server sent empty result") - rpc.notify('initialized', {}) + rpc.notify('initialized', {[vim.type_idx]=vim.types.dictionary}) client.initialized = true uninitialized_clients[client_id] = nil client.server_capabilities = assert(result.capabilities, "initialize result doesn't contain capabilities") @@ -439,14 +461,14 @@ function lsp.start_client(config) local function unsupported_method(method) local msg = "server doesn't support "..method local _ = log.warn() and log.warn(msg) - nvim_err_writeln(msg) + err_message(msg) return lsp.rpc_response_error(protocol.ErrorCodes.MethodNotFound, msg) end --- Checks capabilities before rpc.request-ing. function client.request(method, params, callback) if not callback then - callback = client.callbacks[method] + callback = resolve_callback(method) or error(string.format("request callback is empty and no default was found for client %s", client.name)) end local _ = log.debug() and log.debug(log_prefix, "client.request", client_id, method, params, callback) @@ -851,7 +873,7 @@ function lsp.omnifunc(findstart, base) position = { -- 0-indexed for both line and character line = pos[1] - 1, - character = pos[2], + character = vim.str_utfindex(line, pos[2]), }; -- The completion context. This is only available if the client specifies -- to send this using `ClientCapabilities.textDocument.completion.contextSupport === true` @@ -876,134 +898,8 @@ function lsp.omnifunc(findstart, base) end end ---- ---- FileType based configuration utility ---- - -local all_filetype_configs = {} - --- Lookup a filetype config client by its name. -function lsp.get_filetype_client_by_name(name) - local config = all_filetype_configs[name] - if config.client_id then - return active_clients[config.client_id] - end -end - -local function start_filetype_config(config) - config.client_id = lsp.start_client(config) - nvim_command(string.format( - "autocmd FileType %s silent lua vim.lsp.buf_attach_client(0, %d)", - table.concat(config.filetypes, ','), - config.client_id)) - return config.client_id -end - --- Easy configuration option for common LSP use-cases. --- This will lazy initialize the client when the filetypes specified are --- encountered and attach to those buffers. --- --- The configuration options are the same as |vim.lsp.start_client()|, but --- with a few additions and distinctions: --- --- Additional parameters: --- - filetype: {string} or {list} of filetypes to attach to. --- - name: A unique string among all other servers configured with --- |vim.lsp.add_filetype_config|. --- --- Differences: --- - root_dir: will default to |getcwd()| --- -function lsp.add_filetype_config(config) - -- Additional defaults. - -- Keep a copy of the user's input for debugging reasons. - local user_config = config - config = tbl_extend("force", {}, user_config) - config.root_dir = config.root_dir or uv.cwd() - -- Validate config. - validate_client_config(config) - validate { - name = { config.name, 's' }; - } - assert(config.filetype, "config must have 'filetype' key") - - local filetypes - if type(config.filetype) == 'string' then - filetypes = { config.filetype } - elseif type(config.filetype) == 'table' then - filetypes = config.filetype - assert(not tbl_isempty(filetypes), "config.filetype must not be an empty table") - else - error("config.filetype must be a string or a list of strings") - end - - if all_filetype_configs[config.name] then - -- If the client exists, then it is likely that they are doing some kind of - -- reload flow, so let's not throw an error here. - if all_filetype_configs[config.name].client_id then - -- TODO log here? It might be unnecessarily annoying. - return - end - error(string.format('A configuration with the name %q already exists. They must be unique', config.name)) - end - - all_filetype_configs[config.name] = tbl_extend("keep", config, { - client_id = nil; - filetypes = filetypes; - user_config = user_config; - }) - - nvim_command(string.format( - "autocmd FileType %s ++once silent lua vim.lsp._start_filetype_config_client(%q)", - table.concat(filetypes, ','), - config.name)) -end - --- Create a copy of an existing configuration, and override config with values --- from new_config. --- This is useful if you wish you create multiple LSPs with different root_dirs --- or other use cases. --- --- You can specify a new unique name, but if you do not, a unique name will be --- created like `name-dup_count`. --- --- existing_name: the name of the existing config to copy. --- new_config: the new configuration options. @see |vim.lsp.start_client()|. --- @returns string the new name. -function lsp.copy_filetype_config(existing_name, new_config) - local config = all_filetype_configs[existing_name] - or error(string.format("Configuration with name %q doesn't exist", existing_name)) - config = tbl_extend("force", config, new_config or {}) - config.client_id = nil - config.original_config_name = existing_name - - -- If the user didn't rename it, we will. - if config.name == existing_name then - -- Create a new, unique name. - local duplicate_count = 0 - for _, conf in pairs(all_filetype_configs) do - if conf.original_config_name == existing_name then - duplicate_count = duplicate_count + 1 - end - end - config.name = string.format("%s-%d", existing_name, duplicate_count + 1) - end - print("New config name:", config.name) - lsp.add_filetype_config(config) - return config.name -end - --- Autocmd handler to actually start the client when an applicable filetype is --- encountered. -function lsp._start_filetype_config_client(name) - local config = all_filetype_configs[name] - -- If it exists and is running, don't make it again. - if config.client_id and active_clients[config.client_id] then - -- TODO log here? - return - end - lsp.buf_attach_client(0, start_filetype_config(config)) - return config.client_id +function lsp.client_is_stopped(client_id) + return active_clients[client_id] == nil end --- @@ -1030,7 +926,7 @@ end -- Print some debug information about all LSP related things. -- The output of this function should not be relied upon and may change. function lsp.print_debug_info() - print(vim.inspect({ clients = active_clients, filetype_configs = all_filetype_configs })) + print(vim.inspect({ clients = active_clients })) end -- Log level dictionary with reverse lookup as well. diff --git a/runtime/lua/vim/lsp/buf.lua b/runtime/lua/vim/lsp/buf.lua new file mode 100644 index 0000000000..51295e5570 --- /dev/null +++ b/runtime/lua/vim/lsp/buf.lua @@ -0,0 +1,349 @@ +local vim = vim +local validate = vim.validate +local api = vim.api +local vfn = vim.fn +local util = require 'vim.lsp.util' +local log = require 'vim.lsp.log' +local list_extend = vim.list_extend + +local M = {} + +local function ok_or_nil(status, ...) + if not status then return end + return ... +end +local function npcall(fn, ...) + return ok_or_nil(pcall(fn, ...)) +end + +local function err_message(...) + api.nvim_err_writeln(table.concat(vim.tbl_flatten{...})) + api.nvim_command("redraw") +end + +local function find_window_by_var(name, value) + for _, win in ipairs(api.nvim_list_wins()) do + if npcall(api.nvim_win_get_var, win, name) == value then + return win + end + end +end + +local function request(method, params, callback) + -- TODO(ashkan) enable this. + -- callback = vim.lsp.default_callbacks[method] or callback + validate { + method = {method, 's'}; + callback = {callback, 'f'}; + } + return vim.lsp.buf_request(0, method, params, function(err, _, result, client_id) + local _ = log.debug() and log.debug("vim.lsp.buf", method, client_id, err, result) + if err then error(tostring(err)) end + return callback(err, method, result, client_id) + end) +end + +local function focusable_preview(method, params, fn) + if npcall(api.nvim_win_get_var, 0, method) then + return api.nvim_command("wincmd p") + end + + local bufnr = api.nvim_get_current_buf() + do + local win = find_window_by_var(method, bufnr) + if win then + api.nvim_set_current_win(win) + api.nvim_command("stopinsert") + return + end + end + return request(method, params, function(_, _, result, _) + -- TODO(ashkan) could show error in preview... + local lines, filetype, opts = fn(result) + if lines then + local _, winnr = util.open_floating_preview(lines, filetype, opts) + api.nvim_win_set_var(winnr, method, bufnr) + end + end) +end + +function M.hover() + local params = util.make_position_params() + focusable_preview('textDocument/hover', params, function(result) + if not (result and result.contents) then return end + + local markdown_lines = util.convert_input_to_markdown_lines(result.contents) + markdown_lines = util.trim_empty_lines(markdown_lines) + if vim.tbl_isempty(markdown_lines) then + return { 'No information available' } + end + return markdown_lines, util.try_trim_markdown_code_blocks(markdown_lines) + end) +end + +function M.peek_definition() + local params = util.make_position_params() + request('textDocument/peekDefinition', params, function(_, _, result, _) + if not (result and result[1]) then return end + local loc = result[1] + local bufnr = vim.uri_to_bufnr(loc.uri) or error("couldn't find file "..tostring(loc.uri)) + local start = loc.range.start + local finish = loc.range["end"] + util.open_floating_peek_preview(bufnr, start, finish, { offset_x = 1 }) + local headbuf = util.open_floating_preview({"Peek:"}, nil, { + offset_y = -(finish.line - start.line); + width = finish.character - start.character + 2; + }) + -- TODO(ashkan) change highlight group? + api.nvim_buf_add_highlight(headbuf, -1, 'Keyword', 0, -1) + end) +end + + +local function update_tagstack() + local bufnr = api.nvim_get_current_buf() + local line = vfn.line('.') + local col = vfn.col('.') + local tagname = vfn.expand('<cWORD>') + local item = { bufnr = bufnr, from = { bufnr, line, col, 0 }, tagname = tagname } + local winid = vfn.win_getid() + local tagstack = vfn.gettagstack(winid) + local action + if tagstack.length == tagstack.curidx then + action = 'r' + tagstack.items[tagstack.curidx] = item + elseif tagstack.length > tagstack.curidx then + action = 'r' + if tagstack.curidx > 1 then + tagstack.items = table.insert(tagstack.items[tagstack.curidx - 1], item) + else + tagstack.items = { item } + end + else + action = 'a' + tagstack.items = { item } + end + tagstack.curidx = tagstack.curidx + 1 + vfn.settagstack(winid, tagstack, action) +end +local function handle_location(result) + -- We can sometimes get a list of locations, so set the first value as the + -- only value we want to handle + -- TODO(ashkan) was this correct^? We could use location lists. + if result[1] ~= nil then + result = result[1] + end + if result.uri == nil then + err_message('[LSP] Could not find a valid location') + return + end + local bufnr = vim.uri_to_bufnr(result.uri) + update_tagstack() + api.nvim_set_current_buf(bufnr) + local row = result.range.start.line + local col = result.range.start.character + local line = api.nvim_buf_get_lines(0, row, row+1, true)[1] + col = #line:sub(1, col) + api.nvim_win_set_cursor(0, {row + 1, col}) + return true +end +local function location_callback(_, method, result) + if result == nil or vim.tbl_isempty(result) then + local _ = log.info() and log.info(method, 'No location found') + return nil + end + return handle_location(result) +end + +function M.declaration() + local params = util.make_position_params() + request('textDocument/declaration', params, location_callback) +end + +function M.definition() + local params = util.make_position_params() + request('textDocument/definition', params, location_callback) +end + +function M.type_definition() + local params = util.make_position_params() + request('textDocument/typeDefinition', params, location_callback) +end + +function M.implementation() + local params = util.make_position_params() + request('textDocument/implementation', params, location_callback) +end + +--- Convert SignatureHelp response to preview contents. +-- https://microsoft.github.io/language-server-protocol/specifications/specification-3-14/#textDocument_signatureHelp +local function signature_help_to_preview_contents(input) + if not input.signatures then + return + end + --The active signature. If omitted or the value lies outside the range of + --`signatures` the value defaults to zero or is ignored if `signatures.length + --=== 0`. Whenever possible implementors should make an active decision about + --the active signature and shouldn't rely on a default value. + local contents = {} + local active_signature = input.activeSignature or 0 + -- If the activeSignature is not inside the valid range, then clip it. + if active_signature >= #input.signatures then + active_signature = 0 + end + local signature = input.signatures[active_signature + 1] + if not signature then + return + end + list_extend(contents, vim.split(signature.label, '\n', true)) + if signature.documentation then + util.convert_input_to_markdown_lines(signature.documentation, contents) + end + if input.parameters then + local active_parameter = input.activeParameter or 0 + -- If the activeParameter is not inside the valid range, then clip it. + if active_parameter >= #input.parameters then + active_parameter = 0 + end + local parameter = signature.parameters and signature.parameters[active_parameter] + if parameter then + --[=[ + --Represents a parameter of a callable-signature. A parameter can + --have a label and a doc-comment. + interface ParameterInformation { + --The label of this parameter information. + -- + --Either a string or an inclusive start and exclusive end offsets within its containing + --signature label. (see SignatureInformation.label). The offsets are based on a UTF-16 + --string representation as `Position` and `Range` does. + -- + --*Note*: a label of type string should be a substring of its containing signature label. + --Its intended use case is to highlight the parameter label part in the `SignatureInformation.label`. + label: string | [number, number]; + --The human-readable doc-comment of this parameter. Will be shown + --in the UI but can be omitted. + documentation?: string | MarkupContent; + } + --]=] + -- TODO highlight parameter + if parameter.documentation then + util.convert_input_to_markdown_lines(parameter.documentation, contents) + end + end + end + return contents +end + +function M.signature_help() + local params = util.make_position_params() + focusable_preview('textDocument/signatureHelp', params, function(result) + if not (result and result.signatures and result.signatures[1]) then + return { 'No signature available' } + end + + -- TODO show empty popup when signatures is empty? + local lines = signature_help_to_preview_contents(result) + lines = util.trim_empty_lines(lines) + if vim.tbl_isempty(lines) then + return { 'No signature available' } + end + return lines, util.try_trim_markdown_code_blocks(lines) + end) +end + +-- TODO(ashkan) ? +function M.completion(context) + local params = util.make_position_params() + params.context = context + return request('textDocument/completion', params, function(_, _, result) + if vim.tbl_isempty(result or {}) then return end + local row, col = unpack(api.nvim_win_get_cursor(0)) + local line = assert(api.nvim_buf_get_lines(0, row-1, row, false)[1]) + local line_to_cursor = line:sub(col+1) + + local matches = util.text_document_completion_list_to_complete_items(result, line_to_cursor) + vim.fn.complete(col, matches) + end) +end + +function M.formatting(options) + validate { options = {options, 't', true} } + options = vim.tbl_extend('keep', options or {}, { + tabSize = api.nvim_buf_get_option(0, 'tabstop'); + insertSpaces = api.nvim_buf_get_option(0, 'expandtab'); + }) + local params = { + textDocument = { uri = vim.uri_from_bufnr(0) }; + options = options; + } + return request('textDocument/formatting', params, function(_, _, result) + if not result then return end + util.apply_text_edits(result) + end) +end + +function M.range_formatting(options, start_pos, end_pos) + validate { + options = {options, 't', true}; + start_pos = {start_pos, 't', true}; + end_pos = {end_pos, 't', true}; + } + options = vim.tbl_extend('keep', options or {}, { + tabSize = api.nvim_buf_get_option(0, 'tabstop'); + insertSpaces = api.nvim_buf_get_option(0, 'expandtab'); + }) + local A = list_extend({}, start_pos or api.nvim_buf_get_mark(0, '<')) + local B = list_extend({}, end_pos or api.nvim_buf_get_mark(0, '>')) + -- convert to 0-index + A[1] = A[1] - 1 + B[1] = B[1] - 1 + -- account for encoding. + if A[2] > 0 then + A = {A[1], util.character_offset(0, unpack(A))} + end + if B[2] > 0 then + B = {B[1], util.character_offset(0, unpack(B))} + end + local params = { + textDocument = { uri = vim.uri_from_bufnr(0) }; + range = { + start = { line = A[1]; character = A[2]; }; + ["end"] = { line = B[1]; character = B[2]; }; + }; + options = options; + } + return request('textDocument/rangeFormatting', params, function(_, _, result) + if not result then return end + util.apply_text_edits(result) + end) +end + +function M.rename(new_name) + -- TODO(ashkan) use prepareRename + -- * result: [`Range`](#range) \| `{ range: Range, placeholder: string }` \| `null` describing the range of the string to rename and optionally a placeholder text of the string content to be renamed. If `null` is returned then it is deemed that a 'textDocument/rename' request is not valid at the given position. + local params = util.make_position_params() + new_name = new_name or npcall(vfn.input, "New Name: ") + if not (new_name and #new_name > 0) then return end + params.newName = new_name + request('textDocument/rename', params, function(_, _, result) + if not result then return end + util.apply_workspace_edit(result) + end) +end + +function M.references(context) + validate { context = { context, 't', true } } + local params = util.make_position_params() + params.context = context or { + includeDeclaration = true; + } + params[vim.type_idx] = vim.types.dictionary + request('textDocument/references', params, function(_, _, result) + if not result then return end + util.set_qflist(result) + vim.api.nvim_command("copen") + end) +end + +return M +-- vim:sw=2 ts=2 et diff --git a/runtime/lua/vim/lsp/builtin_callbacks.lua b/runtime/lua/vim/lsp/builtin_callbacks.lua deleted file mode 100644 index cc739ce3ad..0000000000 --- a/runtime/lua/vim/lsp/builtin_callbacks.lua +++ /dev/null @@ -1,296 +0,0 @@ ---- Implements the following default callbacks: --- --- vim.api.nvim_buf_set_lines(0, 0, 0, false, vim.tbl_keys(vim.lsp.builtin_callbacks)) --- - --- textDocument/completion --- textDocument/declaration --- textDocument/definition --- textDocument/hover --- textDocument/implementation --- textDocument/publishDiagnostics --- textDocument/rename --- textDocument/signatureHelp --- textDocument/typeDefinition --- TODO codeLens/resolve --- TODO completionItem/resolve --- TODO documentLink/resolve --- TODO textDocument/codeAction --- TODO textDocument/codeLens --- TODO textDocument/documentHighlight --- TODO textDocument/documentLink --- TODO textDocument/documentSymbol --- TODO textDocument/formatting --- TODO textDocument/onTypeFormatting --- TODO textDocument/rangeFormatting --- TODO textDocument/references --- window/logMessage --- window/showMessage - -local log = require 'vim.lsp.log' -local protocol = require 'vim.lsp.protocol' -local util = require 'vim.lsp.util' -local api = vim.api - -local function split_lines(value) - return vim.split(value, '\n', true) -end - -local builtin_callbacks = {} - --- textDocument/completion --- https://microsoft.github.io/language-server-protocol/specification#textDocument_completion -builtin_callbacks['textDocument/completion'] = function(_, _, result) - if not result or vim.tbl_isempty(result) then - return - end - local pos = api.nvim_win_get_cursor(0) - local row, col = pos[1], pos[2] - local line = assert(api.nvim_buf_get_lines(0, row-1, row, false)[1]) - local line_to_cursor = line:sub(col+1) - - local matches = util.text_document_completion_list_to_complete_items(result, line_to_cursor) - local match_result = vim.fn.matchstrpos(line_to_cursor, '\\k\\+$') - local match_start, match_finish = match_result[2], match_result[3] - - vim.fn.complete(col + 1 - (match_finish - match_start), matches) -end - --- textDocument/rename -builtin_callbacks['textDocument/rename'] = function(_, _, result) - if not result then return end - util.workspace_apply_workspace_edit(result) -end - -local function uri_to_bufnr(uri) - return vim.fn.bufadd((vim.uri_to_fname(uri))) -end - -builtin_callbacks['textDocument/publishDiagnostics'] = function(_, _, result) - if not result then return end - local uri = result.uri - local bufnr = uri_to_bufnr(uri) - if not bufnr then - api.nvim_err_writeln(string.format("LSP.publishDiagnostics: Couldn't find buffer for %s", uri)) - return - end - util.buf_clear_diagnostics(bufnr) - util.buf_diagnostics_save_positions(bufnr, result.diagnostics) - util.buf_diagnostics_underline(bufnr, result.diagnostics) - util.buf_diagnostics_virtual_text(bufnr, result.diagnostics) - -- util.buf_loclist(bufnr, result.diagnostics) -end - --- textDocument/hover --- https://microsoft.github.io/language-server-protocol/specification#textDocument_hover --- @params MarkedString | MarkedString[] | MarkupContent -builtin_callbacks['textDocument/hover'] = function(_, _, result) - if result == nil or vim.tbl_isempty(result) then - return - end - - if result.contents ~= nil then - local markdown_lines = util.convert_input_to_markdown_lines(result.contents) - if vim.tbl_isempty(markdown_lines) then - markdown_lines = { 'No information available' } - end - util.open_floating_preview(markdown_lines, 'markdown') - end -end - -builtin_callbacks['textDocument/peekDefinition'] = function(_, _, result) - if result == nil or vim.tbl_isempty(result) then return end - -- TODO(ashkan) what to do with multiple locations? - result = result[1] - local bufnr = uri_to_bufnr(result.uri) - assert(bufnr) - local start = result.range.start - local finish = result.range["end"] - util.open_floating_peek_preview(bufnr, start, finish, { offset_x = 1 }) - util.open_floating_preview({"*Peek:*", string.rep(" ", finish.character - start.character + 1) }, 'markdown', { offset_y = -(finish.line - start.line) }) -end - ---- Convert SignatureHelp response to preview contents. --- https://microsoft.github.io/language-server-protocol/specifications/specification-3-14/#textDocument_signatureHelp -local function signature_help_to_preview_contents(input) - if not input.signatures then - return - end - --The active signature. If omitted or the value lies outside the range of - --`signatures` the value defaults to zero or is ignored if `signatures.length - --=== 0`. Whenever possible implementors should make an active decision about - --the active signature and shouldn't rely on a default value. - local contents = {} - local active_signature = input.activeSignature or 0 - -- If the activeSignature is not inside the valid range, then clip it. - if active_signature >= #input.signatures then - active_signature = 0 - end - local signature = input.signatures[active_signature + 1] - if not signature then - return - end - vim.list_extend(contents, split_lines(signature.label)) - if signature.documentation then - util.convert_input_to_markdown_lines(signature.documentation, contents) - end - if input.parameters then - local active_parameter = input.activeParameter or 0 - -- If the activeParameter is not inside the valid range, then clip it. - if active_parameter >= #input.parameters then - active_parameter = 0 - end - local parameter = signature.parameters and signature.parameters[active_parameter] - if parameter then - --[=[ - --Represents a parameter of a callable-signature. A parameter can - --have a label and a doc-comment. - interface ParameterInformation { - --The label of this parameter information. - -- - --Either a string or an inclusive start and exclusive end offsets within its containing - --signature label. (see SignatureInformation.label). The offsets are based on a UTF-16 - --string representation as `Position` and `Range` does. - -- - --*Note*: a label of type string should be a substring of its containing signature label. - --Its intended use case is to highlight the parameter label part in the `SignatureInformation.label`. - label: string | [number, number]; - --The human-readable doc-comment of this parameter. Will be shown - --in the UI but can be omitted. - documentation?: string | MarkupContent; - } - --]=] - -- TODO highlight parameter - if parameter.documentation then - util.convert_input_to_markdown_lines(parameter.documentation, contents) - end - end - end - return contents -end - --- textDocument/signatureHelp --- https://microsoft.github.io/language-server-protocol/specification#textDocument_signatureHelp -builtin_callbacks['textDocument/signatureHelp'] = function(_, _, result) - if result == nil or vim.tbl_isempty(result) then - return - end - - -- TODO show empty popup when signatures is empty? - if #result.signatures > 0 then - local markdown_lines = signature_help_to_preview_contents(result) - if vim.tbl_isempty(markdown_lines) then - markdown_lines = { 'No signature available' } - end - util.open_floating_preview(markdown_lines, 'markdown') - end -end - -local function update_tagstack() - local bufnr = api.nvim_get_current_buf() - local line = vim.fn.line('.') - local col = vim.fn.col('.') - local tagname = vim.fn.expand('<cWORD>') - local item = { bufnr = bufnr, from = { bufnr, line, col, 0 }, tagname = tagname } - local winid = vim.fn.win_getid() - local tagstack = vim.fn.gettagstack(winid) - - local action - - if tagstack.length == tagstack.curidx then - action = 'r' - tagstack.items[tagstack.curidx] = item - elseif tagstack.length > tagstack.curidx then - action = 'r' - if tagstack.curidx > 1 then - tagstack.items = table.insert(tagstack.items[tagstack.curidx - 1], item) - else - tagstack.items = { item } - end - else - action = 'a' - tagstack.items = { item } - end - - tagstack.curidx = tagstack.curidx + 1 - vim.fn.settagstack(winid, tagstack, action) -end - -local function handle_location(result) - -- We can sometimes get a list of locations, so set the first value as the - -- only value we want to handle - -- TODO(ashkan) was this correct^? We could use location lists. - if result[1] ~= nil then - result = result[1] - end - if result.uri == nil then - api.nvim_err_writeln('[LSP] Could not find a valid location') - return - end - local result_file = vim.uri_to_fname(result.uri) - local bufnr = vim.fn.bufadd(result_file) |