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-- https://clangd.llvm.org/installation.html
---
--- - **NOTE:** Clang >= 11 is recommended! See [#23](https://github.com/neovim/nvim-lspconfig/issues/23).
--- - If `compile_commands.json` lives in a build directory, you should
--- symlink it to the root of your source tree.
--- ```
--- ln -s /path/to/myproject/build/compile_commands.json /path/to/myproject/
--- ```
--- - clangd relies on a [JSON compilation database](https://clang.llvm.org/docs/JSONCompilationDatabase.html)
--- specified as compile_commands.json, see https://clangd.llvm.org/installation#compile_commandsjson
-- https://clangd.llvm.org/extensions.html#switch-between-sourceheader
local function switch_source_header(bufnr)
local method_name = 'textDocument/switchSourceHeader'
local client = vim.lsp.get_clients({ bufnr = bufnr, name = 'clangd' })[1]
if not client then
return vim.notify(
('method %s is not supported by any servers active on the current buffer'):format(method_name)
)
end
local params = vim.lsp.util.make_text_document_params(bufnr)
client.request(method_name, params, function(err, result)
if err then
error(tostring(err))
end
if not result then
vim.notify('corresponding file cannot be determined')
return
end
vim.cmd.edit(vim.uri_to_fname(result))
end, bufnr)
end
local function symbol_info()
local bufnr = vim.api.nvim_get_current_buf()
local clangd_client = vim.lsp.get_clients({ bufnr = bufnr, name = 'clangd' })[1]
if not clangd_client or not clangd_client.supports_method('textDocument/symbolInfo') then
return vim.notify('Clangd client not found', vim.log.levels.ERROR)
end
local win = vim.api.nvim_get_current_win()
local params = vim.lsp.util.make_position_params(win, clangd_client.offset_encoding)
clangd_client.request('textDocument/symbolInfo', params, function(err, res)
if err or #res == 0 then
-- Clangd always returns an error, there is not reason to parse it
return
end
local container = string.format('container: %s', res[1].containerName) ---@type string
local name = string.format('name: %s', res[1].name) ---@type string
vim.lsp.util.open_floating_preview({ name, container }, '', {
height = 2,
width = math.max(string.len(name), string.len(container)),
focusable = false,
focus = false,
border = 'single',
title = 'Symbol Info',
})
end, bufnr)
end
local function compile_project(command)
return function()
local x = 2
local y = 1
local filter = function(win)
return vim.api.nvim_win_is_valid(win) and vim.api.nvim_win_get_config(win).relative == ''
end
local current = vim.api.nvim_get_current_win()
if not filter(current) then
return
end
local pos = vim.api.nvim_win_get_position(current)
local is_build = nil
if pos[x] == 0 then
is_build = function(pos)
return pos ~= 0
end
else
is_build = function(pos)
return pos == 0
end
end
-- vim.notify('Current window: ' .. vim.inspect(current), vim.log.levels.INFO)
local windows = vim.tbl_filter(filter, vim.api.nvim_list_wins())
-- vim.notify('Valid windows: ' .. vim.inspect(windows), vim.log.levels.INFO)
local build_win = -1
for _, win in ipairs(windows) do
local pos = vim.api.nvim_win_get_position(win)
-- vim.notify('Window id: ' .. vim.inspect(win) .. ' Window pos: ' .. vim.inspect(pos), vim.log.levels.INFO)
-- vim.notify(
-- 'is build: ' .. vim.inspect(is_build(pos[1])) .. ' y == 0: ' .. vim.inspect(pos[2] == 0),
-- vim.log.levels.INFO
-- )
if is_build(pos[x]) and pos[y] == 0 then
build_win = win
-- vim.notify('SET BUILD_WIN: ' .. vim.inspect(build_win), vim.log.levels.INFO)
end
end
if build_win == -1 then
vim.cmd('botright vsplit')
-- vim.cmd('vertical resize ' .. math.floor(vim.o.columns * 0.395))
-- vim.cmd('vertical resize ' .. math.floor(vim.o.columns * 0.46))
build_win = vim.api.nvim_get_current_win()
-- vim.notify('SET BUILD_WIN: ' .. vim.inspect(build_win), vim.log.levels.INFO)
end
if not filter(build_win) then
return
end
-- local build_pos = vim.api.nvim_win_get_position(build_win)
-- vim.notify(
-- 'Build ID: ' .. vim.inspect(build_win) .. ' Build pos: ' .. vim.inspect(build_pos),
-- vim.log.levels.INFO
-- )
vim.api.nvim_set_current_win(build_win)
local build_buf = vim.api.nvim_win_get_buf(build_win)
if vim.api.nvim_win_get_buf(current) == BuildTerminalBuf then
-- NOTE(kyren): switch buffers
vim.api.nvim_win_set_buf(current, build_buf)
end
local old_terminal = BuildTerminalBuf
BuildTerminalBuf = vim.api.nvim_create_buf(false, true)
vim.api.nvim_buf_call(BuildTerminalBuf, function()
vim.fn.termopen(command, vim.empty_dict())
end)
vim.api.nvim_win_set_buf(build_win, BuildTerminalBuf)
if old_terminal then
vim.api.nvim_buf_delete(old_terminal, { force = true })
end
vim.api.nvim_set_current_win(current)
end
end
vim.api.nvim_create_user_command('CompileClose', function()
if BuildTerminalBuf ~= nil and vim.api.nvim_buf_is_valid(BuildTerminalBuf) then
vim.api.nvim_buf_delete(BuildTerminalBuf, { force = true })
end
end, {})
vim.keymap.set({ 'i', 'n', 'v' }, '<C-q>', '<cmd>CompileClose<cr><cmd>wqa<cr>')
return {
cmd = {
'clangd',
'--background-index',
'--clang-tidy',
'--header-insertion=never',
'--completion-style=detailed',
'--function-arg-placeholders=false',
'--fallback-style=none',
},
filetypes = { 'c', 'cpp', 'objc', 'objcpp', 'cuda', 'proto' },
root_markers = {
'.clangd',
'.clang-tidy',
'.clang-format',
'compile_commands.json',
'compile_flags.txt',
'configure.ac', -- AutoTools
'.git',
},
init_options = {
completeUnimported = true,
clangdFileStatus = true,
},
capabilities = {
textDocument = {
completion = {
editsNearCursor = true,
},
},
offsetEncoding = { 'utf-8', 'utf-16' },
},
on_attach = function()
vim.api.nvim_buf_create_user_command(0, 'ClangdSwitchSourceHeader', function()
switch_source_header(0)
end, { desc = 'Switch between source/header' })
vim.api.nvim_buf_create_user_command(0, 'ClangdShowSymbolInfo', function()
symbol_info()
end, { desc = 'Show symbol info' })
local compile = compile_project('clear && ./build.sh krypton\n')
local test = compile_project('clear && ./build.sh test\n')
vim.keymap.set('n', '<A-m>', compile, { desc = '[H]eader and Source Switcher' })
vim.keymap.set('n', '<A-r>', compile, { desc = '[H]eader and Source Switcher' })
vim.keymap.set('n', '<A-c>', compile, { desc = '[H]eader and Source Switcher' })
vim.keymap.set('n', '<A-t>', test, { desc = '[H]eader and Source Switcher' })
vim.keymap.set('n', '<leader>h', '<cmd>ClangdSwitchSourceHeader<cr>', { desc = '[H]eader and Source Switcher' })
vim.keymap.set('n', 'H', '<cmd>ClangdSwitchSourceHeader<cr>', { desc = '[H]eader and Source Switcher' })
end,
}
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