neovim/runtime/lua/vim/lsp/handlers.lua
runiq 7e7fdca163
fix(lsp): unify progress message handling (#18040)
The LSP progress handler would put non-progress messages (such as from
clangd or pyls; not part of the LSP spec) directly into
`client.messages`, while `vim.lsp.util.get_progress_messages()` would
try to fetch them from `client.messages.messages` instead (and come up
empty everytime). This would result in these messages never being
cleaned up by `get_progress_messages()`.

This commit fixes that by treating those messages like show-once
progress messages (by setting `done=true` immediately).
2022-04-20 18:40:52 +02:00

515 lines
20 KiB
Lua

local log = require 'vim.lsp.log'
local protocol = require 'vim.lsp.protocol'
local util = require 'vim.lsp.util'
local vim = vim
local api = vim.api
local M = {}
-- FIXME: DOC: Expose in vimdocs
---@private
--- Writes to error buffer.
---@param ... (table of strings) Will be concatenated before being written
local function err_message(...)
vim.notify(table.concat(vim.tbl_flatten{...}), vim.log.levels.ERROR)
api.nvim_command("redraw")
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_executeCommand
M['workspace/executeCommand'] = function(_, _, _, _)
-- Error handling is done implicitly by wrapping all handlers; see end of this file
end
---@private
local function progress_handler(_, result, ctx, _)
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 the message")
return vim.NIL
end
local val = result.value -- unspecified yet
local token = result.token -- string or number
if type(val) ~= 'table' then val = { content=val } end
if val.kind then
if val.kind == 'begin' then
client.messages.progress[token] = {
title = val.title,
message = val.message,
percentage = val.percentage,
}
elseif val.kind == 'report' then
client.messages.progress[token].message = val.message;
client.messages.progress[token].percentage = val.percentage;
elseif val.kind == 'end' then
if client.messages.progress[token] == nil then
err_message("LSP[", client_name, "] received `end` message with no corresponding `begin`")
else
client.messages.progress[token].message = val.message
client.messages.progress[token].done = true
end
end
else
client.messages.progress[token] = val
client.messages.progress[token].done = true
end
vim.api.nvim_command("doautocmd <nomodeline> User LspProgressUpdate")
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#progress
M['$/progress'] = progress_handler
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_workDoneProgress_create
M['window/workDoneProgress/create'] = function(_, result, ctx)
local client_id = ctx.client_id
local client = vim.lsp.get_client_by_id(client_id)
local token = result.token -- string or number
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 the message")
return vim.NIL
end
client.messages.progress[token] = {}
return vim.NIL
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#window_showMessageRequest
M['window/showMessageRequest'] = function(_, result)
local actions = result.actions
print(result.message)
local option_strings = {result.message, "\nRequest Actions:"}
for i, action in ipairs(actions) do
local title = action.title:gsub('\r\n', '\\r\\n')
title = title:gsub('\n', '\\n')
table.insert(option_strings, string.format("%d. %s", i, title))
end
-- window/showMessageRequest can return either MessageActionItem[] or null.
local choice = vim.fn.inputlist(option_strings)
if choice < 1 or choice > #actions then
return vim.NIL
else
return actions[choice]
end
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#client_registerCapability
M['client/registerCapability'] = function(_, _, ctx)
local client_id = ctx.client_id
local warning_tpl = "The language server %s triggers a registerCapability "..
"handler despite dynamicRegistration set to false. "..
"Report upstream, this warning is harmless"
local client = vim.lsp.get_client_by_id(client_id)
local client_name = client and client.name or string.format("id=%d", client_id)
local warning = string.format(warning_tpl, client_name)
log.warn(warning)
return vim.NIL
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_applyEdit
M['workspace/applyEdit'] = function(_, workspace_edit, ctx)
if not workspace_edit then return end
-- TODO(ashkan) Do something more with label?
local client_id = ctx.client_id
local client = vim.lsp.get_client_by_id(client_id)
if workspace_edit.label then
print("Workspace edit", workspace_edit.label)
end
local status, result = pcall(util.apply_workspace_edit, workspace_edit.edit, client.offset_encoding)
return {
applied = status;
failureReason = result;
}
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_configuration
M['workspace/configuration'] = function(_, result, ctx)
local client_id = ctx.client_id
local client = vim.lsp.get_client_by_id(client_id)
if not client then
err_message("LSP[id=", client_id, "] client has shut down after sending the message")
return
end
if not result.items then
return {}
end
local response = {}
for _, item in ipairs(result.items) do
if item.section then
local value = util.lookup_section(client.config.settings, item.section)
-- For empty sections with no explicit '' key, return settings as is
if value == vim.NIL and item.section == '' then
value = client.config.settings or vim.NIL
end
table.insert(response, value)
end
end
return response
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_workspaceFolders
M['workspace/workspaceFolders'] = function(_, _, ctx)
local client_id = ctx.client_id
local client = vim.lsp.get_client_by_id(client_id)
if not client then
err_message("LSP[id=", client_id, "] client has shut down after sending the message")
return
end
return client.workspace_folders or vim.NIL
end
M['textDocument/publishDiagnostics'] = function(...)
return require('vim.lsp.diagnostic').on_publish_diagnostics(...)
end
M['textDocument/codeLens'] = function(...)
return require('vim.lsp.codelens').on_codelens(...)
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_references
M['textDocument/references'] = function(_, result, ctx, config)
if not result or vim.tbl_isempty(result) then
vim.notify('No references found')
else
local client = vim.lsp.get_client_by_id(ctx.client_id)
config = config or {}
if config.loclist then
vim.fn.setloclist(0, {}, ' ', {
title = 'References';
items = util.locations_to_items(result, client.offset_encoding);
context = ctx;
})
api.nvim_command("lopen")
else
vim.fn.setqflist({}, ' ', {
title = 'References';
items = util.locations_to_items(result, client.offset_encoding);
context = ctx;
})
api.nvim_command("botright copen")
end
end
end
---@private
--- Return a function that converts LSP responses to list items and opens the list
---
--- The returned function has an optional {config} parameter that accepts a table
--- with the following keys:
---
--- loclist: (boolean) use the location list (default is to use the quickfix list)
---
---@param map_result function `((resp, bufnr) -> list)` to convert the response
---@param entity string name of the resource used in a `not found` error message
---@param title_fn function Function to call to generate list title
local function response_to_list(map_result, entity, title_fn)
return function(_, result, ctx, config)
if not result or vim.tbl_isempty(result) then
vim.notify('No ' .. entity .. ' found')
else
config = config or {}
if config.loclist then
vim.fn.setloclist(0, {}, ' ', {
title = title_fn(ctx);
items = map_result(result, ctx.bufnr);
context = ctx;
})
api.nvim_command("lopen")
else
vim.fn.setqflist({}, ' ', {
title = title_fn(ctx);
items = map_result(result, ctx.bufnr);
context = ctx;
})
api.nvim_command("botright copen")
end
end
end
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_documentSymbol
M['textDocument/documentSymbol'] = response_to_list(util.symbols_to_items, 'document symbols', function(ctx)
local fname = vim.fn.fnamemodify(vim.uri_to_fname(ctx.params.textDocument.uri), ":.")
return string.format('Symbols in %s', fname)
end)
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#workspace_symbol
M['workspace/symbol'] = response_to_list(util.symbols_to_items, 'symbols', function(ctx)
return string.format("Symbols matching '%s'", ctx.params.query)
end)
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_rename
M['textDocument/rename'] = function(_, result, ctx, _)
if not result then return end
local client = vim.lsp.get_client_by_id(ctx.client_id)
util.apply_workspace_edit(result, client.offset_encoding)
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_rangeFormatting
M['textDocument/rangeFormatting'] = function(_, result, ctx, _)
if not result then return end
local client = vim.lsp.get_client_by_id(ctx.client_id)
util.apply_text_edits(result, ctx.bufnr, client.offset_encoding)
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_formatting
M['textDocument/formatting'] = function(_, result, ctx, _)
if not result then return end
local client = vim.lsp.get_client_by_id(ctx.client_id)
util.apply_text_edits(result, ctx.bufnr, client.offset_encoding)
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_completion
M['textDocument/completion'] = 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 textMatch = vim.fn.match(line_to_cursor, '\\k*$')
local prefix = line_to_cursor:sub(textMatch+1)
local matches = util.text_document_completion_list_to_complete_items(result, prefix)
vim.fn.complete(textMatch+1, matches)
end
--- |lsp-handler| for the method "textDocument/hover"
--- <pre>
--- vim.lsp.handlers["textDocument/hover"] = vim.lsp.with(
--- vim.lsp.handlers.hover, {
--- -- Use a sharp border with `FloatBorder` highlights
--- border = "single"
--- }
--- )
--- </pre>
---@param config table Configuration table.
--- - border: (default=nil)
--- - Add borders to the floating window
--- - See |nvim_open_win()|
function M.hover(_, result, ctx, config)
config = config or {}
config.focus_id = ctx.method
if not (result and result.contents) then
-- return { 'No information available' }
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' }
return
end
return util.open_floating_preview(markdown_lines, "markdown", config)
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_hover
M['textDocument/hover'] = M.hover
---@private
--- Jumps to a location. Used as a handler for multiple LSP methods.
---@param _ (not used)
---@param result (table) result of LSP method; a location or a list of locations.
---@param ctx (table) table containing the context of the request, including the method
---(`textDocument/definition` can return `Location` or `Location[]`
local function location_handler(_, result, ctx, _)
if result == nil or vim.tbl_isempty(result) then
local _ = log.info() and log.info(ctx.method, 'No location found')
return nil
end
local client = vim.lsp.get_client_by_id(ctx.client_id)
-- textDocument/definition can return Location or Location[]
-- https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_definition
if vim.tbl_islist(result) then
util.jump_to_location(result[1], client.offset_encoding)
if #result > 1 then
vim.fn.setqflist({}, ' ', {
title = 'LSP locations',
items = util.locations_to_items(result, client.offset_encoding)
})
api.nvim_command("botright copen")
end
else
util.jump_to_location(result, client.offset_encoding)
end
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_declaration
M['textDocument/declaration'] = location_handler
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_definition
M['textDocument/definition'] = location_handler
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_typeDefinition
M['textDocument/typeDefinition'] = location_handler
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_implementation
M['textDocument/implementation'] = location_handler
--- |lsp-handler| for the method "textDocument/signatureHelp".
--- The active parameter is highlighted with |hl-LspSignatureActiveParameter|.
--- <pre>
--- vim.lsp.handlers["textDocument/signatureHelp"] = vim.lsp.with(
--- vim.lsp.handlers.signature_help, {
--- -- Use a sharp border with `FloatBorder` highlights
--- border = "single"
--- }
--- )
--- </pre>
---@param config table Configuration table.
--- - border: (default=nil)
--- - Add borders to the floating window
--- - See |vim.api.nvim_open_win()|
function M.signature_help(_, result, ctx, config)
config = config or {}
config.focus_id = ctx.method
-- When use `autocmd CompleteDone <silent><buffer> lua vim.lsp.buf.signature_help()` to call signatureHelp handler
-- If the completion item doesn't have signatures It will make noise. Change to use `print` that can use `<silent>` to ignore
if not (result and result.signatures and result.signatures[1]) then
if config.silent ~= true then
print('No signature help available')
end
return
end
local client = vim.lsp.get_client_by_id(ctx.client_id)
local triggers = client.resolved_capabilities.signature_help_trigger_characters
local ft = api.nvim_buf_get_option(ctx.bufnr, 'filetype')
local lines, hl = util.convert_signature_help_to_markdown_lines(result, ft, triggers)
lines = util.trim_empty_lines(lines)
if vim.tbl_isempty(lines) then
if config.silent ~= true then
print('No signature help available')
end
return
end
local fbuf, fwin = util.open_floating_preview(lines, "markdown", config)
if hl then
api.nvim_buf_add_highlight(fbuf, -1, "LspSignatureActiveParameter", 0, unpack(hl))
end
return fbuf, fwin
end
--see: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_signatureHelp
M['textDocument/signatureHelp'] = M.signature_help
--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 the 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 the 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
-- 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