mirror of
https://github.com/neovim/neovim.git
synced 2024-12-31 17:13:26 -07:00
623 lines
23 KiB
Lua
623 lines
23 KiB
Lua
local log = require('vim.lsp.log')
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local protocol = require('vim.lsp.protocol')
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local util = require('vim.lsp.util')
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local api = vim.api
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local M = {}
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-- FIXME: DOC: Expose in vimdocs
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---@private
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--- Writes to error buffer.
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---@param ... (table of strings) Will be concatenated before being written
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local function err_message(...)
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vim.notify(table.concat(vim.tbl_flatten({ ... })), vim.log.levels.ERROR)
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api.nvim_command('redraw')
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_executeCommand
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M['workspace/executeCommand'] = function(_, _, _, _)
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-- Error handling is done implicitly by wrapping all handlers; see end of this file
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end
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---@private
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local function progress_handler(_, result, ctx, _)
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local client_id = ctx.client_id
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local client = vim.lsp.get_client_by_id(client_id)
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local client_name = client and client.name or string.format('id=%d', client_id)
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if not client then
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err_message('LSP[', client_name, '] client has shut down during progress update')
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return vim.NIL
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end
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local val = result.value -- unspecified yet
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local token = result.token -- string or number
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if type(val) ~= 'table' then
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val = { content = val }
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end
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if val.kind then
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if val.kind == 'begin' then
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client.messages.progress[token] = {
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title = val.title,
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cancellable = val.cancellable,
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message = val.message,
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percentage = val.percentage,
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}
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elseif val.kind == 'report' then
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client.messages.progress[token].cancellable = val.cancellable
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client.messages.progress[token].message = val.message
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client.messages.progress[token].percentage = val.percentage
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elseif val.kind == 'end' then
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if client.messages.progress[token] == nil then
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err_message('LSP[', client_name, '] received `end` message with no corresponding `begin`')
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else
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client.messages.progress[token].message = val.message
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client.messages.progress[token].done = true
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end
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end
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else
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client.messages.progress[token] = val
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client.messages.progress[token].done = true
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end
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api.nvim_exec_autocmds('User', { pattern = 'LspProgressUpdate', modeline = false })
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#progress
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M['$/progress'] = progress_handler
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_workDoneProgress_create
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M['window/workDoneProgress/create'] = function(_, result, ctx)
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local client_id = ctx.client_id
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local client = vim.lsp.get_client_by_id(client_id)
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local token = result.token -- string or number
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local client_name = client and client.name or string.format('id=%d', client_id)
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if not client then
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err_message('LSP[', client_name, '] client has shut down while creating progress report')
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return vim.NIL
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end
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client.messages.progress[token] = {}
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return vim.NIL
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_showMessageRequest
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---@param result lsp.ShowMessageRequestParams
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M['window/showMessageRequest'] = function(_, result)
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local actions = result.actions or {}
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local co, is_main = coroutine.running()
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if co and not is_main then
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local opts = {
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prompt = result.message .. ': ',
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format_item = function(action)
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return (action.title:gsub('\r\n', '\\r\\n')):gsub('\n', '\\n')
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end,
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}
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vim.ui.select(actions, opts, function(choice)
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-- schedule to ensure resume doesn't happen _before_ yield with
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-- default synchronous vim.ui.select
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vim.schedule(function()
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coroutine.resume(co, choice or vim.NIL)
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end)
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end)
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return coroutine.yield()
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else
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local option_strings = { result.message, '\nRequest Actions:' }
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for i, action in ipairs(actions) do
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local title = action.title:gsub('\r\n', '\\r\\n')
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title = title:gsub('\n', '\\n')
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table.insert(option_strings, string.format('%d. %s', i, title))
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end
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local choice = vim.fn.inputlist(option_strings)
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if choice < 1 or choice > #actions then
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return vim.NIL
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else
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return actions[choice]
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end
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end
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#client_registerCapability
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M['client/registerCapability'] = function(_, _, ctx)
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local client_id = ctx.client_id
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local warning_tpl = 'The language server %s triggers a registerCapability '
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.. 'handler despite dynamicRegistration set to false. '
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.. 'Report upstream, this warning is harmless'
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local client = vim.lsp.get_client_by_id(client_id)
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local client_name = client and client.name or string.format('id=%d', client_id)
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local warning = string.format(warning_tpl, client_name)
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log.warn(warning)
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return vim.NIL
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_applyEdit
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M['workspace/applyEdit'] = function(_, workspace_edit, ctx)
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if not workspace_edit then
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return
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end
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-- TODO(ashkan) Do something more with label?
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local client_id = ctx.client_id
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local client = vim.lsp.get_client_by_id(client_id)
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if workspace_edit.label then
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print('Workspace edit', workspace_edit.label)
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end
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local status, result =
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pcall(util.apply_workspace_edit, workspace_edit.edit, client.offset_encoding)
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return {
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applied = status,
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failureReason = result,
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}
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_configuration
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M['workspace/configuration'] = function(_, result, ctx)
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local client_id = ctx.client_id
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local client = vim.lsp.get_client_by_id(client_id)
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if not client then
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err_message(
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'LSP[',
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client_id,
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'] client has shut down after sending a workspace/configuration request'
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)
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return
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end
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if not result.items then
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return {}
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end
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local response = {}
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for _, item in ipairs(result.items) do
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if item.section then
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local value = util.lookup_section(client.config.settings, item.section)
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-- For empty sections with no explicit '' key, return settings as is
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if value == vim.NIL and item.section == '' then
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value = client.config.settings or vim.NIL
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end
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table.insert(response, value)
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end
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end
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return response
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_workspaceFolders
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M['workspace/workspaceFolders'] = function(_, _, ctx)
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local client_id = ctx.client_id
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local client = vim.lsp.get_client_by_id(client_id)
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if not client then
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err_message('LSP[id=', client_id, '] client has shut down after sending the message')
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return
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end
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return client.workspace_folders or vim.NIL
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end
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M['textDocument/publishDiagnostics'] = function(...)
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return require('vim.lsp.diagnostic').on_publish_diagnostics(...)
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end
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M['textDocument/codeLens'] = function(...)
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return require('vim.lsp.codelens').on_codelens(...)
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_references
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M['textDocument/references'] = function(_, result, ctx, config)
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if not result or vim.tbl_isempty(result) then
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vim.notify('No references found')
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else
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local client = vim.lsp.get_client_by_id(ctx.client_id)
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config = config or {}
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local title = 'References'
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local items = util.locations_to_items(result, client.offset_encoding)
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if config.loclist then
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vim.fn.setloclist(0, {}, ' ', { title = title, items = items, context = ctx })
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api.nvim_command('lopen')
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elseif config.on_list then
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assert(type(config.on_list) == 'function', 'on_list is not a function')
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config.on_list({ title = title, items = items, context = ctx })
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else
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vim.fn.setqflist({}, ' ', { title = title, items = items, context = ctx })
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api.nvim_command('botright copen')
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end
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end
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end
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---@private
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--- Return a function that converts LSP responses to list items and opens the list
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---
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--- The returned function has an optional {config} parameter that accepts a table
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--- with the following keys:
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---
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--- loclist: (boolean) use the location list (default is to use the quickfix list)
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---
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---@param map_result function `((resp, bufnr) -> list)` to convert the response
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---@param entity string name of the resource used in a `not found` error message
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---@param title_fn function Function to call to generate list title
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local function response_to_list(map_result, entity, title_fn)
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return function(_, result, ctx, config)
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if not result or vim.tbl_isempty(result) then
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vim.notify('No ' .. entity .. ' found')
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else
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config = config or {}
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local title = title_fn(ctx)
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local items = map_result(result, ctx.bufnr)
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if config.loclist then
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vim.fn.setloclist(0, {}, ' ', { title = title, items = items, context = ctx })
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api.nvim_command('lopen')
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elseif config.on_list then
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assert(type(config.on_list) == 'function', 'on_list is not a function')
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config.on_list({ title = title, items = items, context = ctx })
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else
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vim.fn.setqflist({}, ' ', { title = title, items = items, context = ctx })
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api.nvim_command('botright copen')
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end
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end
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end
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_documentSymbol
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M['textDocument/documentSymbol'] = response_to_list(
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util.symbols_to_items,
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'document symbols',
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function(ctx)
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local fname = vim.fn.fnamemodify(vim.uri_to_fname(ctx.params.textDocument.uri), ':.')
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return string.format('Symbols in %s', fname)
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end
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)
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_symbol
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M['workspace/symbol'] = response_to_list(util.symbols_to_items, 'symbols', function(ctx)
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return string.format("Symbols matching '%s'", ctx.params.query)
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end)
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_rename
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M['textDocument/rename'] = function(_, result, ctx, _)
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if not result then
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vim.notify("Language server couldn't provide rename result", vim.log.levels.INFO)
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return
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end
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local client = vim.lsp.get_client_by_id(ctx.client_id)
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util.apply_workspace_edit(result, client.offset_encoding)
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_rangeFormatting
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M['textDocument/rangeFormatting'] = function(_, result, ctx, _)
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if not result then
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return
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end
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local client = vim.lsp.get_client_by_id(ctx.client_id)
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util.apply_text_edits(result, ctx.bufnr, client.offset_encoding)
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_formatting
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M['textDocument/formatting'] = function(_, result, ctx, _)
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if not result then
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return
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end
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local client = vim.lsp.get_client_by_id(ctx.client_id)
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util.apply_text_edits(result, ctx.bufnr, client.offset_encoding)
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_completion
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M['textDocument/completion'] = function(_, result, _, _)
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if vim.tbl_isempty(result or {}) then
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return
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end
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local row, col = unpack(api.nvim_win_get_cursor(0))
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local line = assert(api.nvim_buf_get_lines(0, row - 1, row, false)[1])
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local line_to_cursor = line:sub(col + 1)
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local textMatch = vim.fn.match(line_to_cursor, '\\k*$')
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local prefix = line_to_cursor:sub(textMatch + 1)
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local matches = util.text_document_completion_list_to_complete_items(result, prefix)
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vim.fn.complete(textMatch + 1, matches)
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end
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--- |lsp-handler| for the method "textDocument/hover"
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--- <pre>lua
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--- vim.lsp.handlers["textDocument/hover"] = vim.lsp.with(
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--- vim.lsp.handlers.hover, {
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--- -- Use a sharp border with `FloatBorder` highlights
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--- border = "single",
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--- -- add the title in hover float window
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--- title = "hover"
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--- }
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--- )
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--- </pre>
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---@param config table Configuration table.
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--- - border: (default=nil)
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--- - Add borders to the floating window
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--- - See |nvim_open_win()|
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function M.hover(_, result, ctx, config)
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config = config or {}
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config.focus_id = ctx.method
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if api.nvim_get_current_buf() ~= ctx.bufnr then
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-- Ignore result since buffer changed. This happens for slow language servers.
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return
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end
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if not (result and result.contents) then
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vim.notify('No information available')
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return
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end
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local markdown_lines = util.convert_input_to_markdown_lines(result.contents)
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markdown_lines = util.trim_empty_lines(markdown_lines)
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if vim.tbl_isempty(markdown_lines) then
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vim.notify('No information available')
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return
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end
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return util.open_floating_preview(markdown_lines, 'markdown', config)
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_hover
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M['textDocument/hover'] = M.hover
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---@private
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--- Jumps to a location. Used as a handler for multiple LSP methods.
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---@param _ (not used)
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---@param result (table) result of LSP method; a location or a list of locations.
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---@param ctx (table) table containing the context of the request, including the method
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---(`textDocument/definition` can return `Location` or `Location[]`
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local function location_handler(_, result, ctx, config)
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if result == nil or vim.tbl_isempty(result) then
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local _ = log.info() and log.info(ctx.method, 'No location found')
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return nil
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end
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local client = vim.lsp.get_client_by_id(ctx.client_id)
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config = config or {}
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-- textDocument/definition can return Location or Location[]
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-- https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_definition
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if vim.tbl_islist(result) then
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local title = 'LSP locations'
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local items = util.locations_to_items(result, client.offset_encoding)
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if config.on_list then
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assert(type(config.on_list) == 'function', 'on_list is not a function')
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config.on_list({ title = title, items = items })
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else
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if #result == 1 then
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util.jump_to_location(result[1], client.offset_encoding, config.reuse_win)
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return
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end
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vim.fn.setqflist({}, ' ', { title = title, items = items })
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api.nvim_command('botright copen')
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end
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else
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util.jump_to_location(result, client.offset_encoding, config.reuse_win)
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end
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_declaration
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M['textDocument/declaration'] = location_handler
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_definition
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M['textDocument/definition'] = location_handler
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_typeDefinition
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M['textDocument/typeDefinition'] = location_handler
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_implementation
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M['textDocument/implementation'] = location_handler
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--- |lsp-handler| for the method "textDocument/signatureHelp".
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--- The active parameter is highlighted with |hl-LspSignatureActiveParameter|.
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--- <pre>lua
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--- vim.lsp.handlers["textDocument/signatureHelp"] = vim.lsp.with(
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--- vim.lsp.handlers.signature_help, {
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--- -- Use a sharp border with `FloatBorder` highlights
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--- border = "single"
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--- }
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--- )
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--- </pre>
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---@param config table Configuration table.
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--- - border: (default=nil)
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--- - Add borders to the floating window
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--- - See |nvim_open_win()|
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function M.signature_help(_, result, ctx, config)
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config = config or {}
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config.focus_id = ctx.method
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if api.nvim_get_current_buf() ~= ctx.bufnr then
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-- Ignore result since buffer changed. This happens for slow language servers.
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return
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end
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-- When use `autocmd CompleteDone <silent><buffer> lua vim.lsp.buf.signature_help()` to call signatureHelp handler
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-- If the completion item doesn't have signatures It will make noise. Change to use `print` that can use `<silent>` to ignore
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if not (result and result.signatures and result.signatures[1]) then
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if config.silent ~= true then
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print('No signature help available')
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end
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return
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end
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local client = vim.lsp.get_client_by_id(ctx.client_id)
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local triggers =
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vim.tbl_get(client.server_capabilities, 'signatureHelpProvider', 'triggerCharacters')
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local ft = api.nvim_buf_get_option(ctx.bufnr, 'filetype')
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local lines, hl = util.convert_signature_help_to_markdown_lines(result, ft, triggers)
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lines = util.trim_empty_lines(lines)
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if vim.tbl_isempty(lines) then
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if config.silent ~= true then
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print('No signature help available')
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end
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return
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end
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local fbuf, fwin = util.open_floating_preview(lines, 'markdown', config)
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if hl then
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api.nvim_buf_add_highlight(fbuf, -1, 'LspSignatureActiveParameter', 0, unpack(hl))
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end
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return fbuf, fwin
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end
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--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_signatureHelp
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M['textDocument/signatureHelp'] = M.signature_help
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|
|
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_documentHighlight
|
|
M['textDocument/documentHighlight'] = function(_, result, ctx, _)
|
|
if not result then
|
|
return
|
|
end
|
|
local client_id = ctx.client_id
|
|
local client = vim.lsp.get_client_by_id(client_id)
|
|
if not client then
|
|
return
|
|
end
|
|
util.buf_highlight_references(ctx.bufnr, result, client.offset_encoding)
|
|
end
|
|
|
|
---@private
|
|
---
|
|
--- Displays call hierarchy in the quickfix window.
|
|
---
|
|
---@param direction `"from"` for incoming calls and `"to"` for outgoing calls
|
|
---@returns `CallHierarchyIncomingCall[]` if {direction} is `"from"`,
|
|
---@returns `CallHierarchyOutgoingCall[]` if {direction} is `"to"`,
|
|
local make_call_hierarchy_handler = function(direction)
|
|
return function(_, result)
|
|
if not result then
|
|
return
|
|
end
|
|
local items = {}
|
|
for _, call_hierarchy_call in pairs(result) do
|
|
local call_hierarchy_item = call_hierarchy_call[direction]
|
|
for _, range in pairs(call_hierarchy_call.fromRanges) do
|
|
table.insert(items, {
|
|
filename = assert(vim.uri_to_fname(call_hierarchy_item.uri)),
|
|
text = call_hierarchy_item.name,
|
|
lnum = range.start.line + 1,
|
|
col = range.start.character + 1,
|
|
})
|
|
end
|
|
end
|
|
vim.fn.setqflist({}, ' ', { title = 'LSP call hierarchy', items = items })
|
|
api.nvim_command('botright copen')
|
|
end
|
|
end
|
|
|
|
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#callHierarchy_incomingCalls
|
|
M['callHierarchy/incomingCalls'] = make_call_hierarchy_handler('from')
|
|
|
|
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#callHierarchy_outgoingCalls
|
|
M['callHierarchy/outgoingCalls'] = make_call_hierarchy_handler('to')
|
|
|
|
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_logMessage
|
|
M['window/logMessage'] = function(_, result, ctx, _)
|
|
local message_type = result.type
|
|
local message = result.message
|
|
local client_id = ctx.client_id
|
|
local client = vim.lsp.get_client_by_id(client_id)
|
|
local client_name = client and client.name or string.format('id=%d', client_id)
|
|
if not client then
|
|
err_message('LSP[', client_name, '] client has shut down after sending ', message)
|
|
end
|
|
if message_type == protocol.MessageType.Error then
|
|
log.error(message)
|
|
elseif message_type == protocol.MessageType.Warning then
|
|
log.warn(message)
|
|
elseif message_type == protocol.MessageType.Info or message_type == protocol.MessageType.Log then
|
|
log.info(message)
|
|
else
|
|
log.debug(message)
|
|
end
|
|
return result
|
|
end
|
|
|
|
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_showMessage
|
|
M['window/showMessage'] = function(_, result, ctx, _)
|
|
local message_type = result.type
|
|
local message = result.message
|
|
local client_id = ctx.client_id
|
|
local client = vim.lsp.get_client_by_id(client_id)
|
|
local client_name = client and client.name or string.format('id=%d', client_id)
|
|
if not client then
|
|
err_message('LSP[', client_name, '] client has shut down after sending ', message)
|
|
end
|
|
if message_type == protocol.MessageType.Error then
|
|
err_message('LSP[', client_name, '] ', message)
|
|
else
|
|
local message_type_name = protocol.MessageType[message_type]
|
|
api.nvim_out_write(string.format('LSP[%s][%s] %s\n', client_name, message_type_name, message))
|
|
end
|
|
return result
|
|
end
|
|
|
|
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_showDocument
|
|
M['window/showDocument'] = function(_, result, ctx, _)
|
|
local uri = result.uri
|
|
|
|
if result.external then
|
|
-- TODO(lvimuser): ask the user for confirmation
|
|
local cmd
|
|
if vim.fn.has('win32') == 1 then
|
|
cmd = { 'cmd.exe', '/c', 'start', '""', uri }
|
|
elseif vim.fn.has('macunix') == 1 then
|
|
cmd = { 'open', uri }
|
|
else
|
|
cmd = { 'xdg-open', uri }
|
|
end
|
|
|
|
local ret = vim.fn.system(cmd)
|
|
if vim.v.shell_error ~= 0 then
|
|
return {
|
|
success = false,
|
|
error = {
|
|
code = protocol.ErrorCodes.UnknownErrorCode,
|
|
message = ret,
|
|
},
|
|
}
|
|
end
|
|
|
|
return { success = true }
|
|
end
|
|
|
|
local client_id = ctx.client_id
|
|
local client = vim.lsp.get_client_by_id(client_id)
|
|
local client_name = client and client.name or string.format('id=%d', client_id)
|
|
if not client then
|
|
err_message({ 'LSP[', client_name, '] client has shut down after sending ', ctx.method })
|
|
return vim.NIL
|
|
end
|
|
|
|
local location = {
|
|
uri = uri,
|
|
range = result.selection,
|
|
}
|
|
|
|
local success = util.show_document(location, client.offset_encoding, {
|
|
reuse_win = true,
|
|
focus = result.takeFocus,
|
|
})
|
|
return { success = success or false }
|
|
end
|
|
|
|
-- Add boilerplate error validation and logging for all of these.
|
|
for k, fn in pairs(M) do
|
|
M[k] = function(err, result, ctx, config)
|
|
local _ = log.trace()
|
|
and log.trace('default_handler', ctx.method, {
|
|
err = err,
|
|
result = result,
|
|
ctx = vim.inspect(ctx),
|
|
config = config,
|
|
})
|
|
|
|
if err then
|
|
-- LSP spec:
|
|
-- interface ResponseError:
|
|
-- code: integer;
|
|
-- message: string;
|
|
-- data?: string | number | boolean | array | object | null;
|
|
|
|
-- Per LSP, don't show ContentModified error to the user.
|
|
if err.code ~= protocol.ErrorCodes.ContentModified then
|
|
local client = vim.lsp.get_client_by_id(ctx.client_id)
|
|
local client_name = client and client.name or string.format('client_id=%d', ctx.client_id)
|
|
|
|
err_message(client_name .. ': ' .. tostring(err.code) .. ': ' .. err.message)
|
|
end
|
|
return
|
|
end
|
|
|
|
return fn(err, result, ctx, config)
|
|
end
|
|
end
|
|
|
|
return M
|
|
-- vim:sw=2 ts=2 et
|