mirror of
https://github.com/neovim/neovim.git
synced 2024-12-22 12:15:06 -07:00
d410812311
- Hide diagnostics on client exit - Stop insert on popup focus. - Hide popup on insertchar (for signature_help)
673 lines
22 KiB
Lua
673 lines
22 KiB
Lua
local protocol = require 'vim.lsp.protocol'
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local validate = vim.validate
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local api = vim.api
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local M = {}
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local split = vim.split
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local function split_lines(value)
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return split(value, '\n', true)
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end
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local list_extend = vim.list_extend
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--- Find the longest shared prefix between prefix and word.
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-- e.g. remove_prefix("123tes", "testing") == "ting"
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local function remove_prefix(prefix, word)
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local max_prefix_length = math.min(#prefix, #word)
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local prefix_length = 0
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for i = 1, max_prefix_length do
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local current_line_suffix = prefix:sub(-i)
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local word_prefix = word:sub(1, i)
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if current_line_suffix == word_prefix then
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prefix_length = i
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end
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end
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return word:sub(prefix_length + 1)
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end
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-- TODO(ashkan) @performance this could do less copying.
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function M.set_lines(lines, A, B, new_lines)
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-- 0-indexing to 1-indexing
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local i_0 = A[1] + 1
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local i_n = B[1] + 1
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if not (i_0 >= 1 and i_0 <= #lines and i_n >= 1 and i_n <= #lines) then
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error("Invalid range: "..vim.inspect{A = A; B = B; #lines, new_lines})
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end
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local prefix = ""
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local suffix = lines[i_n]:sub(B[2]+1)
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if A[2] > 0 then
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prefix = lines[i_0]:sub(1, A[2])
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end
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local n = i_n - i_0 + 1
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if n ~= #new_lines then
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for _ = 1, n - #new_lines do table.remove(lines, i_0) end
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for _ = 1, #new_lines - n do table.insert(lines, i_0, '') end
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end
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for i = 1, #new_lines do
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lines[i - 1 + i_0] = new_lines[i]
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end
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if #suffix > 0 then
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local i = i_0 + #new_lines - 1
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lines[i] = lines[i]..suffix
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end
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if #prefix > 0 then
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lines[i_0] = prefix..lines[i_0]
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end
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return lines
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end
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local function sort_by_key(fn)
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return function(a,b)
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local ka, kb = fn(a), fn(b)
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assert(#ka == #kb)
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for i = 1, #ka do
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if ka[i] ~= kb[i] then
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return ka[i] < kb[i]
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end
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end
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-- every value must have been equal here, which means it's not less than.
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return false
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end
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end
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local edit_sort_key = sort_by_key(function(e)
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return {e.A[1], e.A[2], e.i}
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end)
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function M.apply_text_edits(text_edits, bufnr)
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if not next(text_edits) then return end
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local start_line, finish_line = math.huge, -1
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local cleaned = {}
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for i, e in ipairs(text_edits) do
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start_line = math.min(e.range.start.line, start_line)
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finish_line = math.max(e.range["end"].line, finish_line)
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-- TODO(ashkan) sanity check ranges for overlap.
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table.insert(cleaned, {
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i = i;
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A = {e.range.start.line; e.range.start.character};
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B = {e.range["end"].line; e.range["end"].character};
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lines = vim.split(e.newText, '\n', true);
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})
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end
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-- Reverse sort the orders so we can apply them without interfering with
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-- eachother. Also add i as a sort key to mimic a stable sort.
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table.sort(cleaned, edit_sort_key)
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local lines = api.nvim_buf_get_lines(bufnr, start_line, finish_line + 1, false)
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local fix_eol = api.nvim_buf_get_option(bufnr, 'fixeol')
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local set_eol = fix_eol and api.nvim_buf_line_count(bufnr) == finish_line + 1
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if set_eol and #lines[#lines] ~= 0 then
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table.insert(lines, '')
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end
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for i = #cleaned, 1, -1 do
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local e = cleaned[i]
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local A = {e.A[1] - start_line, e.A[2]}
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local B = {e.B[1] - start_line, e.B[2]}
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lines = M.set_lines(lines, A, B, e.lines)
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end
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if set_eol and #lines[#lines] == 0 then
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table.remove(lines)
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end
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api.nvim_buf_set_lines(bufnr, start_line, finish_line + 1, false, lines)
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end
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-- local valid_windows_path_characters = "[^<>:\"/\\|?*]"
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-- local valid_unix_path_characters = "[^/]"
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-- https://github.com/davidm/lua-glob-pattern
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-- https://stackoverflow.com/questions/1976007/what-characters-are-forbidden-in-windows-and-linux-directory-names
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-- function M.glob_to_regex(glob)
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-- end
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-- textDocument/completion response returns one of CompletionItem[], CompletionList or null.
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-- https://microsoft.github.io/language-server-protocol/specification#textDocument_completion
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function M.extract_completion_items(result)
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if type(result) == 'table' and result.items then
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return result.items
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elseif result ~= nil then
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return result
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else
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return {}
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end
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end
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--- Apply the TextDocumentEdit response.
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-- @params TextDocumentEdit [table] see https://microsoft.github.io/language-server-protocol/specification
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function M.apply_text_document_edit(text_document_edit)
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local text_document = text_document_edit.textDocument
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local bufnr = vim.uri_to_bufnr(text_document.uri)
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-- TODO(ashkan) check this is correct.
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if api.nvim_buf_get_changedtick(bufnr) > text_document.version then
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print("Buffer ", text_document.uri, " newer than edits.")
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return
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end
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M.apply_text_edits(text_document_edit.edits, bufnr)
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end
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function M.get_current_line_to_cursor()
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local pos = api.nvim_win_get_cursor(0)
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local line = assert(api.nvim_buf_get_lines(0, pos[1]-1, pos[1], false)[1])
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return line:sub(pos[2]+1)
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end
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--- Getting vim complete-items with incomplete flag.
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-- @params CompletionItem[], CompletionList or nil (https://microsoft.github.io/language-server-protocol/specification#textDocument_completion)
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-- @return { matches = complete-items table, incomplete = boolean }
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function M.text_document_completion_list_to_complete_items(result, line_prefix)
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local items = M.extract_completion_items(result)
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if vim.tbl_isempty(items) then
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return {}
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end
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-- Only initialize if we have some items.
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if not line_prefix then
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line_prefix = M.get_current_line_to_cursor()
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end
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local matches = {}
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for _, completion_item in ipairs(items) do
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local info = ' '
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local documentation = completion_item.documentation
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if documentation then
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if type(documentation) == 'string' and documentation ~= '' then
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info = documentation
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elseif type(documentation) == 'table' and type(documentation.value) == 'string' then
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info = documentation.value
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-- else
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-- TODO(ashkan) Validation handling here?
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end
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end
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local word = completion_item.insertText or completion_item.label
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-- Ref: `:h complete-items`
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table.insert(matches, {
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word = remove_prefix(line_prefix, word),
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abbr = completion_item.label,
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kind = protocol.CompletionItemKind[completion_item.kind] or '',
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menu = completion_item.detail or '',
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info = info,
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icase = 1,
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dup = 0,
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empty = 1,
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})
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end
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return matches
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end
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-- @params WorkspaceEdit [table] see https://microsoft.github.io/language-server-protocol/specification
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function M.apply_workspace_edit(workspace_edit)
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if workspace_edit.documentChanges then
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for _, change in ipairs(workspace_edit.documentChanges) do
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if change.kind then
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-- TODO(ashkan) handle CreateFile/RenameFile/DeleteFile
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error(string.format("Unsupported change: %q", vim.inspect(change)))
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else
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M.apply_text_document_edit(change)
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end
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end
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return
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end
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local all_changes = workspace_edit.changes
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if not (all_changes and not vim.tbl_isempty(all_changes)) then
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return
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end
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for uri, changes in pairs(all_changes) do
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local bufnr = vim.uri_to_bufnr(uri)
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M.apply_text_edits(changes, bufnr)
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end
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end
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--- Convert any of MarkedString | MarkedString[] | MarkupContent into markdown text lines
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-- see https://microsoft.github.io/language-server-protocol/specifications/specification-3-14/#textDocument_hover
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-- Useful for textDocument/hover, textDocument/signatureHelp, and potentially others.
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function M.convert_input_to_markdown_lines(input, contents)
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contents = contents or {}
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-- MarkedString variation 1
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if type(input) == 'string' then
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list_extend(contents, split_lines(input))
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else
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assert(type(input) == 'table', "Expected a table for Hover.contents")
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-- MarkupContent
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if input.kind then
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-- The kind can be either plaintext or markdown. However, either way we
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-- will just be rendering markdown, so we handle them both the same way.
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-- TODO these can have escaped/sanitized html codes in markdown. We
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-- should make sure we handle this correctly.
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-- Some servers send input.value as empty, so let's ignore this :(
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-- assert(type(input.value) == 'string')
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list_extend(contents, split_lines(input.value or ''))
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-- MarkupString variation 2
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elseif input.language then
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-- Some servers send input.value as empty, so let's ignore this :(
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-- assert(type(input.value) == 'string')
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table.insert(contents, "```"..input.language)
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list_extend(contents, split_lines(input.value or ''))
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table.insert(contents, "```")
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-- By deduction, this must be MarkedString[]
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else
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-- Use our existing logic to handle MarkedString
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for _, marked_string in ipairs(input) do
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M.convert_input_to_markdown_lines(marked_string, contents)
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end
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end
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end
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if contents[1] == '' or contents[1] == nil then
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return {}
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end
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return contents
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end
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function M.make_floating_popup_options(width, height, opts)
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validate {
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opts = { opts, 't', true };
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}
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opts = opts or {}
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validate {
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["opts.offset_x"] = { opts.offset_x, 'n', true };
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["opts.offset_y"] = { opts.offset_y, 'n', true };
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}
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local anchor = ''
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local row, col
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if vim.fn.winline() <= height then
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anchor = anchor..'N'
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row = 1
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else
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anchor = anchor..'S'
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row = 0
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end
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if vim.fn.wincol() + width <= api.nvim_get_option('columns') then
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anchor = anchor..'W'
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col = 0
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else
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anchor = anchor..'E'
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col = 1
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end
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return {
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anchor = anchor,
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col = col + (opts.offset_x or 0),
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height = height,
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relative = 'cursor',
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row = row + (opts.offset_y or 0),
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style = 'minimal',
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width = width,
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}
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end
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function M.open_floating_preview(contents, filetype, opts)
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validate {
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contents = { contents, 't' };
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filetype = { filetype, 's', true };
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opts = { opts, 't', true };
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}
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opts = opts or {}
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-- Trim empty lines from the end.
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contents = M.trim_empty_lines(contents)
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local width = opts.width
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local height = opts.height or #contents
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if not width then
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width = 0
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for i, line in ipairs(contents) do
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-- Clean up the input and add left pad.
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line = " "..line:gsub("\r", "")
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-- TODO(ashkan) use nvim_strdisplaywidth if/when that is introduced.
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local line_width = vim.fn.strdisplaywidth(line)
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width = math.max(line_width, width)
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contents[i] = line
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end
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-- Add right padding of 1 each.
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width = width + 1
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end
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local floating_bufnr = api.nvim_create_buf(false, true)
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if filetype then
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api.nvim_buf_set_option(floating_bufnr, 'filetype', filetype)
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end
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local float_option = M.make_floating_popup_options(width, height, opts)
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local floating_winnr = api.nvim_open_win(floating_bufnr, false, float_option)
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if filetype == 'markdown' then
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api.nvim_win_set_option(floating_winnr, 'conceallevel', 2)
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end
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api.nvim_buf_set_lines(floating_bufnr, 0, -1, true, contents)
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api.nvim_buf_set_option(floating_bufnr, 'modifiable', false)
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-- TODO make InsertCharPre disappearing optional?
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api.nvim_command("autocmd CursorMoved,BufHidden,InsertCharPre <buffer> ++once lua pcall(vim.api.nvim_win_close, "..floating_winnr..", true)")
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return floating_bufnr, floating_winnr
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end
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local function validate_lsp_position(pos)
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validate { pos = {pos, 't'} }
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validate {
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line = {pos.line, 'n'};
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character = {pos.character, 'n'};
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}
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return true
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end
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function M.open_floating_peek_preview(bufnr, start, finish, opts)
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validate {
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bufnr = {bufnr, 'n'};
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start = {start, validate_lsp_position, 'valid start Position'};
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finish = {finish, validate_lsp_position, 'valid finish Position'};
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opts = { opts, 't', true };
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}
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local width = math.max(finish.character - start.character + 1, 1)
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local height = math.max(finish.line - start.line + 1, 1)
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local floating_winnr = api.nvim_open_win(bufnr, false, M.make_floating_popup_options(width, height, opts))
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api.nvim_win_set_cursor(floating_winnr, {start.line+1, start.character})
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api.nvim_command("autocmd CursorMoved * ++once lua pcall(vim.api.nvim_win_close, "..floating_winnr..", true)")
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return floating_winnr
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end
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local function highlight_range(bufnr, ns, hiname, start, finish)
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if start[1] == finish[1] then
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-- TODO care about encoding here since this is in byte index?
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api.nvim_buf_add_highlight(bufnr, ns, hiname, start[1], start[2], finish[2])
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else
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api.nvim_buf_add_highlight(bufnr, ns, hiname, start[1], start[2], -1)
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for line = start[1] + 1, finish[1] - 1 do
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api.nvim_buf_add_highlight(bufnr, ns, hiname, line, 0, -1)
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end
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api.nvim_buf_add_highlight(bufnr, ns, hiname, finish[1], 0, finish[2])
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end
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end
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do
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local all_buffer_diagnostics = {}
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local diagnostic_ns = api.nvim_create_namespace("vim_lsp_diagnostics")
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local default_severity_highlight = {
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[protocol.DiagnosticSeverity.Error] = { guifg = "Red" };
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[protocol.DiagnosticSeverity.Warning] = { guifg = "Orange" };
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[protocol.DiagnosticSeverity.Information] = { guifg = "LightBlue" };
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[protocol.DiagnosticSeverity.Hint] = { guifg = "LightGrey" };
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}
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local underline_highlight_name = "LspDiagnosticsUnderline"
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api.nvim_command(string.format("highlight %s gui=underline cterm=underline", underline_highlight_name))
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local function find_color_rgb(color)
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local rgb_hex = api.nvim_get_color_by_name(color)
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validate { color = {color, function() return rgb_hex ~= -1 end, "valid color name"} }
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return rgb_hex
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end
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--- Determine whether to use black or white text
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-- Ref: https://stackoverflow.com/a/1855903/837964
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-- https://stackoverflow.com/questions/596216/formula-to-determine-brightness-of-rgb-color
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local function color_is_bright(r, g, b)
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-- Counting the perceptive luminance - human eye favors green color
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local luminance = (0.299*r + 0.587*g + 0.114*b)/255
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if luminance > 0.5 then
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return true -- Bright colors, black font
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else
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return false -- Dark colors, white font
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end
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end
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local severity_highlights = {}
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function M.set_severity_highlights(highlights)
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validate {highlights = {highlights, 't'}}
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for severity, default_color in pairs(default_severity_highlight) do
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local severity_name = protocol.DiagnosticSeverity[severity]
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local highlight_name = "LspDiagnostics"..severity_name
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local hi_info = highlights[severity] or default_color
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-- Try to fill in the foreground color with a sane default.
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if not hi_info.guifg and hi_info.guibg then
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-- TODO(ashkan) move this out when bitop is guaranteed to be included.
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local bit = require 'bit'
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local band, rshift = bit.band, bit.rshift
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local rgb = find_color_rgb(hi_info.guibg)
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local is_bright = color_is_bright(rshift(rgb, 16), band(rshift(rgb, 8), 0xFF), band(rgb, 0xFF))
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hi_info.guifg = is_bright and "Black" or "White"
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end
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if not hi_info.ctermfg and hi_info.ctermbg then
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-- TODO(ashkan) move this out when bitop is guaranteed to be included.
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local bit = require 'bit'
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local band, rshift = bit.band, bit.rshift
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local rgb = find_color_rgb(hi_info.ctermbg)
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local is_bright = color_is_bright(rshift(rgb, 16), band(rshift(rgb, 8), 0xFF), band(rgb, 0xFF))
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hi_info.ctermfg = is_bright and "Black" or "White"
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end
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local cmd_parts = {"highlight", highlight_name}
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for k, v in pairs(hi_info) do
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table.insert(cmd_parts, k.."="..v)
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end
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api.nvim_command(table.concat(cmd_parts, ' '))
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severity_highlights[severity] = highlight_name
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end
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end
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function M.buf_clear_diagnostics(bufnr)
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validate { bufnr = {bufnr, 'n', true} }
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bufnr = bufnr == 0 and api.nvim_get_current_buf() or bufnr
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api.nvim_buf_clear_namespace(bufnr, diagnostic_ns, 0, -1)
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end
|
|
|
|
-- Initialize with the defaults.
|
|
M.set_severity_highlights(default_severity_highlight)
|
|
|
|
function M.get_severity_highlight_name(severity)
|
|
return severity_highlights[severity]
|
|
end
|
|
|
|
function M.show_line_diagnostics()
|
|
local bufnr = api.nvim_get_current_buf()
|
|
local line = api.nvim_win_get_cursor(0)[1] - 1
|
|
-- local marks = api.nvim_buf_get_extmarks(bufnr, diagnostic_ns, {line, 0}, {line, -1}, {})
|
|
-- if #marks == 0 then
|
|
-- return
|
|
-- end
|
|
-- local buffer_diagnostics = all_buffer_diagnostics[bufnr]
|
|
local lines = {"Diagnostics:"}
|
|
local highlights = {{0, "Bold"}}
|
|
|
|
local buffer_diagnostics = all_buffer_diagnostics[bufnr]
|
|
if not buffer_diagnostics then return end
|
|
local line_diagnostics = buffer_diagnostics[line]
|
|
if not line_diagnostics then return end
|
|
|
|
for i, diagnostic in ipairs(line_diagnostics) do
|
|
-- for i, mark in ipairs(marks) do
|
|
-- local mark_id = mark[1]
|
|
-- local diagnostic = buffer_diagnostics[mark_id]
|
|
|
|
-- TODO(ashkan) make format configurable?
|
|
local prefix = string.format("%d. ", i)
|
|
local hiname = severity_highlights[diagnostic.severity]
|
|
local message_lines = split_lines(diagnostic.message)
|
|
table.insert(lines, prefix..message_lines[1])
|
|
table.insert(highlights, {#prefix + 1, hiname})
|
|
for j = 2, #message_lines do
|
|
table.insert(lines, message_lines[j])
|
|
table.insert(highlights, {0, hiname})
|
|
end
|
|
end
|
|
local popup_bufnr, winnr = M.open_floating_preview(lines, 'plaintext')
|
|
for i, hi in ipairs(highlights) do
|
|
local prefixlen, hiname = unpack(hi)
|
|
-- Start highlight after the prefix
|
|
api.nvim_buf_add_highlight(popup_bufnr, -1, hiname, i-1, prefixlen, -1)
|
|
end
|
|
return popup_bufnr, winnr
|
|
end
|
|
|
|
function M.buf_diagnostics_save_positions(bufnr, diagnostics)
|
|
validate {
|
|
bufnr = {bufnr, 'n', true};
|
|
diagnostics = {diagnostics, 't', true};
|
|
}
|
|
if not diagnostics then return end
|
|
bufnr = bufnr == 0 and api.nvim_get_current_buf() or bufnr
|
|
|
|
if not all_buffer_diagnostics[bufnr] then
|
|
-- Clean up our data when the buffer unloads.
|
|
api.nvim_buf_attach(bufnr, false, {
|
|
on_detach = function(b)
|
|
all_buffer_diagnostics[b] = nil
|
|
end
|
|
})
|
|
end
|
|
all_buffer_diagnostics[bufnr] = {}
|
|
local buffer_diagnostics = all_buffer_diagnostics[bufnr]
|
|
|
|
for _, diagnostic in ipairs(diagnostics) do
|
|
local start = diagnostic.range.start
|
|
-- local mark_id = api.nvim_buf_set_extmark(bufnr, diagnostic_ns, 0, start.line, 0, {})
|
|
-- buffer_diagnostics[mark_id] = diagnostic
|
|
local line_diagnostics = buffer_diagnostics[start.line]
|
|
if not line_diagnostics then
|
|
line_diagnostics = {}
|
|
buffer_diagnostics[start.line] = line_diagnostics
|
|
end
|
|
table.insert(line_diagnostics, diagnostic)
|
|
end
|
|
end
|
|
|
|
|
|
function M.buf_diagnostics_underline(bufnr, diagnostics)
|
|
for _, diagnostic in ipairs(diagnostics) do
|
|
local start = diagnostic.range.start
|
|
local finish = diagnostic.range["end"]
|
|
|
|
-- TODO care about encoding here since this is in byte index?
|
|
highlight_range(bufnr, diagnostic_ns, underline_highlight_name,
|
|
{start.line, start.character},
|
|
{finish.line, finish.character}
|
|
)
|
|
end
|
|
end
|
|
|
|
function M.buf_diagnostics_virtual_text(bufnr, diagnostics)
|
|
local buffer_line_diagnostics = all_buffer_diagnostics[bufnr]
|
|
if not buffer_line_diagnostics then
|
|
M.buf_diagnostics_save_positions(bufnr, diagnostics)
|
|
end
|
|
buffer_line_diagnostics = all_buffer_diagnostics[bufnr]
|
|
if not buffer_line_diagnostics then
|
|
return
|
|
end
|
|
for line, line_diags in pairs(buffer_line_diagnostics) do
|
|
local virt_texts = {}
|
|
for i = 1, #line_diags - 1 do
|
|
table.insert(virt_texts, {"■", severity_highlights[line_diags[i].severity]})
|
|
end
|
|
local last = line_diags[#line_diags]
|
|
-- TODO(ashkan) use first line instead of subbing 2 spaces?
|
|
table.insert(virt_texts, {"■ "..last.message:gsub("\r", ""):gsub("\n", " "), severity_highlights[last.severity]})
|
|
api.nvim_buf_set_virtual_text(bufnr, diagnostic_ns, line, virt_texts, {})
|
|
end
|
|
end
|
|
end
|
|
|
|
function M.buf_loclist(bufnr, locations)
|
|
local targetwin
|
|
for _, winnr in ipairs(api.nvim_list_wins()) do
|
|
local winbuf = api.nvim_win_get_buf(winnr)
|
|
if winbuf == bufnr then
|
|
targetwin = winnr
|
|
break
|
|
end
|
|
end
|
|
if not targetwin then return end
|
|
|
|
local items = {}
|
|
local path = api.nvim_buf_get_name(bufnr)
|
|
for _, d in ipairs(locations) do
|
|
-- TODO: URL parsing here?
|
|
local start = d.range.start
|
|
table.insert(items, {
|
|
filename = path,
|
|
lnum = start.line + 1,
|
|
col = start.character + 1,
|
|
text = d.message,
|
|
})
|
|
end
|
|
vim.fn.setloclist(targetwin, items, ' ', 'Language Server')
|
|
end
|
|
|
|
-- Remove empty lines from the beginning and end.
|
|
function M.trim_empty_lines(lines)
|
|
local start = 1
|
|
for i = 1, #lines do
|
|
if #lines[i] > 0 then
|
|
start = i
|
|
break
|
|
end
|
|
end
|
|
local finish = 1
|
|
for i = #lines, 1, -1 do
|
|
if #lines[i] > 0 then
|
|
finish = i
|
|
break
|
|
end
|
|
end
|
|
return vim.list_extend({}, lines, start, finish)
|
|
end
|
|
|
|
-- Accepts markdown lines and tries to reduce it to a filetype if it is
|
|
-- just a single code block.
|
|
-- Note: This modifies the input.
|
|
--
|
|
-- Returns: filetype or 'markdown' if it was unchanged.
|
|
function M.try_trim_markdown_code_blocks(lines)
|
|
local language_id = lines[1]:match("^```(.*)")
|
|
if language_id then
|
|
local has_inner_code_fence = false
|
|
for i = 2, (#lines - 1) do
|
|
local line = lines[i]
|
|
if line:sub(1,3) == '```' then
|
|
has_inner_code_fence = true
|
|
break
|
|
end
|
|
end
|
|
-- No inner code fences + starting with code fence = hooray.
|
|
if not has_inner_code_fence then
|
|
table.remove(lines, 1)
|
|
table.remove(lines)
|
|
return language_id
|
|
end
|
|
end
|
|
return 'markdown'
|
|
end
|
|
|
|
local str_utfindex = vim.str_utfindex
|
|
function M.make_position_params()
|
|
local row, col = unpack(api.nvim_win_get_cursor(0))
|
|
row = row - 1
|
|
local line = api.nvim_buf_get_lines(0, row, row+1, true)[1]
|
|
col = str_utfindex(line, col)
|
|
return {
|
|
textDocument = { uri = vim.uri_from_bufnr(0) };
|
|
position = { line = row; character = col; }
|
|
}
|
|
end
|
|
|
|
-- @param buf buffer handle or 0 for current.
|
|
-- @param row 0-indexed line
|
|
-- @param col 0-indexed byte offset in line
|
|
function M.character_offset(buf, row, col)
|
|
local line = api.nvim_buf_get_lines(buf, row, row+1, true)[1]
|
|
-- If the col is past the EOL, use the line length.
|
|
if col > #line then
|
|
return str_utfindex(line)
|
|
end
|
|
return str_utfindex(line, col)
|
|
end
|
|
|
|
return M
|
|
-- vim:sw=2 ts=2 et
|