101 lines
3.5 KiB
Lua
101 lines
3.5 KiB
Lua
---@brief
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---
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--- https://clangd.llvm.org/installation.html
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---
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--- - **NOTE:** Clang >= 11 is recommended! See [#23](https://github.com/neovim/nvim-lspconfig/issues/23).
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--- - If `compile_commands.json` lives in a build directory, you should
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--- symlink it to the root of your source tree.
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--- ```
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--- ln -s /path/to/myproject/build/compile_commands.json /path/to/myproject/
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--- ```
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--- - clangd relies on a [JSON compilation database](https://clang.llvm.org/docs/JSONCompilationDatabase.html)
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--- specified as compile_commands.json, see https://clangd.llvm.org/installation#compile_commandsjson
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-- https://clangd.llvm.org/extensions.html#switch-between-sourceheader
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local function switch_source_header(bufnr, client)
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local method_name = 'textDocument/switchSourceHeader'
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---@diagnostic disable-next-line:param-type-mismatch
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if not client or not client:supports_method(method_name) then
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return vim.notify(('method %s is not supported by any servers active on the current buffer'):format(method_name))
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end
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local params = vim.lsp.util.make_text_document_params(bufnr)
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---@diagnostic disable-next-line:param-type-mismatch
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client:request(method_name, params, function(err, result)
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if err then
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error(tostring(err))
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end
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if not result then
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vim.notify('corresponding file cannot be determined')
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return
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end
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vim.cmd.edit(vim.uri_to_fname(result))
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end, bufnr)
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end
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local function symbol_info(bufnr, client)
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local method_name = 'textDocument/symbolInfo'
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---@diagnostic disable-next-line:param-type-mismatch
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if not client or not client:supports_method(method_name) then
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return vim.notify('Clangd client not found', vim.log.levels.ERROR)
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end
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local win = vim.api.nvim_get_current_win()
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local params = vim.lsp.util.make_position_params(win, client.offset_encoding)
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---@diagnostic disable-next-line:param-type-mismatch
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client:request(method_name, params, function(err, res)
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if err or #res == 0 then
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-- Clangd always returns an error, there is no reason to parse it
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return
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end
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local container = string.format('container: %s', res[1].containerName) ---@type string
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local name = string.format('name: %s', res[1].name) ---@type string
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vim.lsp.util.open_floating_preview({ name, container }, '', {
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height = 2,
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width = math.max(string.len(name), string.len(container)),
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focusable = false,
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focus = false,
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title = 'Symbol Info',
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})
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end, bufnr)
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end
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---@class ClangdInitializeResult: lsp.InitializeResult
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---@field offsetEncoding? string
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---@type vim.lsp.Config
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return {
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cmd = { 'clangd' },
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filetypes = { 'c', 'cpp', 'objc', 'objcpp', 'cuda' },
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root_markers = {
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'.clangd',
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'.clang-tidy',
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'.clang-format',
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'compile_commands.json',
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'compile_flags.txt',
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'configure.ac', -- AutoTools
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'.git',
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},
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capabilities = {
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textDocument = {
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completion = {
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editsNearCursor = true,
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},
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},
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offsetEncoding = { 'utf-8', 'utf-16' },
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},
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---@param init_result ClangdInitializeResult
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on_init = function(client, init_result)
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if init_result.offsetEncoding then
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client.offset_encoding = init_result.offsetEncoding
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end
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end,
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on_attach = function(client, bufnr)
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vim.api.nvim_buf_create_user_command(bufnr, 'LspClangdSwitchSourceHeader', function()
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switch_source_header(bufnr, client)
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end, { desc = 'Switch between source/header' })
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vim.api.nvim_buf_create_user_command(bufnr, 'LspClangdShowSymbolInfo', function()
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symbol_info(bufnr, client)
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end, { desc = 'Show symbol info' })
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end,
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}
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