Add jdtls
Jona Löffler
1 month ago
parent
d4126167aa
commit
426548583b
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return {
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'mfussenegger/nvim-jdtls',
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ft = { 'java' },
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config = function()
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vim.api.nvim_create_autocmd({ 'BufEnter', 'BufWinEnter' }, {
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group = vim.api.nvim_create_augroup('JonaJDTLS', {}),
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pattern = { '*.java' },
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callback = function()
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-- Based on https://github.com/Nawy/nvim-config-examples/blob/main/lsp-java/ftplugin/java.lua
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-- Java Language Server configuration.
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-- Locations:
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-- 'nvim/ftplugin/java.lua'.
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-- 'nvim/lang-servers/intellij-java-google-style.xml'
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local jdtls_ok, _ = pcall(require, 'jdtls')
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if not jdtls_ok then
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vim.notify 'JDTLS not found, install with `:LspInstall jdtls`'
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return
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end
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-- See `:help vim.lsp.start_client` for an overview of the supported `config` options.
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local jdtls_path = vim.fn.stdpath 'data' .. '/mason/packages/jdtls'
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local path_to_lsp_server = jdtls_path .. '/config_linux'
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local path_to_plugins = jdtls_path .. '/plugins/'
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local path_to_jar = path_to_plugins .. 'org.eclipse.equinox.launcher_1.6.800.v20240304-1850.jar'
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local lombok_path = jdtls_path .. '/lombok.jar'
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-- local root_markers = { ".git", "mvnw", "gradlew", "pom.xml", "build.gradle" }
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local root_markers = { '.git', 'mvnw', 'pom.xml', 'gradlew' }
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local root_dir = require('jdtls.setup').find_root(root_markers)
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if root_dir == '' then
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return
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end
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local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ':p:h:t')
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local workspace_dir = vim.fn.stdpath 'data' .. '/site/java/workspace-root/' .. project_name
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os.execute('mkdir -p ' .. workspace_dir)
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-- Main Config
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local config = {
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-- The command that starts the language server
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-- See: https://github.com/eclipse/eclipse.jdt.ls#running-from-the-command-line
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cmd = {
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'java',
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'-Declipse.application=org.eclipse.jdt.ls.core.id1',
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'-Dosgi.bundles.defaultStartLevel=4',
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'-Declipse.product=org.eclipse.jdt.ls.core.product',
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'-Dlog.protocol=true',
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'-Dlog.level=ALL',
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'-javaagent:' .. lombok_path,
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'-Xms1g',
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'--add-modules=ALL-SYSTEM',
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'--add-opens',
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'java.base/java.util=ALL-UNNAMED',
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'--add-opens',
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'java.base/java.lang=ALL-UNNAMED',
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'-jar',
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path_to_jar,
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'-configuration',
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path_to_lsp_server,
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'-data',
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workspace_dir,
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},
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-- This is the default if not provided, you can remove it. Or adjust as needed.
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-- One dedicated LSP server & client will be started per unique root_dir
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root_dir = root_dir,
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-- Here you can configure eclipse.jdt.ls specific settings
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-- See https://github.com/eclipse/eclipse.jdt.ls/wiki/Running-the-JAVA-LS-server-from-the-command-line#initialize-request
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-- for a list of options
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settings = {
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java = {
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home = '/usr/lib/jvm/jre-21-openjdk/',
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eclipse = {
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downloadSources = true,
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},
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configuration = {
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updateBuildConfiguration = 'interactive',
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runtimes = {
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{
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name = 'JavaSE-22',
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path = '/usr/lib/jvm/jre-22-openjdk/',
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},
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{
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name = 'JavaSE-21',
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path = '/usr/lib/jvm/jre-21-openjdk/',
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},
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{
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name = 'JavaSE-17',
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path = '/usr/lib/jvm/jre-17-openjdk/',
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},
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},
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},
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maven = {
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downloadSources = true,
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},
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implementationsCodeLens = {
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enabled = true,
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},
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referencesCodeLens = {
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enabled = true,
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},
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references = {
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includeDecompiledSources = true,
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},
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format = {
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enabled = true,
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settings = {
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url = vim.fn.stdpath 'config' .. '/lang-servers/eclipse-java-google-style.xml',
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profile = 'GoogleStyle',
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},
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},
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},
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signatureHelp = { enabled = true },
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completion = {
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favoriteStaticMembers = {
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'org.hamcrest.MatcherAssert.assertThat',
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'org.hamcrest.Matchers.*',
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'org.hamcrest.CoreMatchers.*',
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'org.junit.jupiter.api.Assertions.*',
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'java.util.Objects.requireNonNull',
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'java.util.Objects.requireNonNullElse',
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'org.mockito.Mockito.*',
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},
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importOrder = {
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'java',
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'javax',
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'com',
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'org',
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},
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},
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-- extendedClientCapabilities = extendedClientCapabilities,
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sources = {
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organizeImports = {
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starThreshold = 9999,
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staticStarThreshold = 9999,
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},
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},
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codeGeneration = {
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toString = {
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template = '${object.className}{${member.name()}=${member.value}, ${otherMembers}}',
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},
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useBlocks = true,
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},
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},
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flags = {
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allow_incremental_sync = true,
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},
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init_options = {
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bundles = {},
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},
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}
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-- config['on_attach'] = function(client, bufnr)
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-- require'keymaps'.map_java_keys(bufnr);
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-- require "lsp_signature".on_attach({
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-- bind = true, -- This is mandatory, otherwise border config won't get registered.
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-- floating_window_above_cur_line = false,
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-- padding = '',
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-- handler_opts = {
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-- border = "rounded"
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-- }
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-- }, bufnr)
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-- end
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-- vim.lsp.set_log_level 'trace'
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config['on_attach'] = require('jona.lsp').on_attach
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-- This starts a new client & server,
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-- or attaches to an existing client & server depending on the `root_dir`.
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require('jdtls').start_or_attach(config)
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end,
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})
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end,
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}
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@ -0,0 +1,87 @@
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local M = {}
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M.on_attach = function(event)
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-- NOTE: Remember that Lua is a real programming language, and as such it is possible
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-- to define small helper and utility functions so you don't have to repeat yourself.
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--
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-- In this case, we create a function that lets us more easily define mappings specific
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-- for LSP related items. It sets the mode, buffer and description for us each time.
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local map = function(keys, func, desc)
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vim.keymap.set('n', keys, func, { buffer = event.buf, desc = 'LSP: ' .. desc })
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end
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-- Jump to the definition of the word under your cursor.
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-- This is where a variable was first declared, or where a function is defined, etc.
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-- To jump back, press <C-t>.
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map('gd', vim.lsp.buf.definition, '[G]oto [D]efinition')
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-- Find references for the word under your cursor.
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map('gr', vim.lsp.buf.references, '[G]oto [R]eferences')
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-- Jump to the implementation of the word under your cursor.
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-- Useful when your language has ways of declaring types without an actual implementation.
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map('gI', vim.lsp.buf.implementation, '[G]oto [I]mplementation')
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-- Jump to the type of the word under your cursor.
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-- Useful when you're not sure what type a variable is and you want to see
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-- the definition of its *type*, not where it was *defined*.
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map('<leader>D', require('telescope.builtin').lsp_type_definitions, 'Type [D]efinition')
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-- Fuzzy find all the symbols in your current document.
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-- Symbols are things like variables, functions, types, etc.
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map('<leader>ds', require('telescope.builtin').lsp_document_symbols, '[D]ocument [S]ymbols')
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-- Fuzzy find all the symbols in your current workspace.
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-- Similar to document symbols, except searches over your entire project.
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map('<leader>ws', require('telescope.builtin').lsp_dynamic_workspace_symbols, '[W]orkspace [S]ymbols')
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-- Rename the variable under your cursor.
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-- Most Language Servers support renaming across files, etc.
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map('rr', vim.lsp.buf.rename, '[R]e[n]ame')
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-- Execute a code action, usually your cursor needs to be on top of an error
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-- or a suggestion from your LSP for this to activate.
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map('<leader>ca', vim.lsp.buf.code_action, '[C]ode [A]ction')
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-- Opens a popup that displays documentation about the word under your cursor
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-- See `:help K` for why this keymap.
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map('K', vim.lsp.buf.hover, 'Hover Documentation')
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-- WARN: This is not Goto Definition, this is Goto Declaration.
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-- For example, in C this would take you to the header.
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map('gD', vim.lsp.buf.declaration, '[G]oto [D]eclaration')
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-- The following two autocommands are used to highlight references of the
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-- word under your cursor when your cursor rests there for a little while.
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-- See `:help CursorHold` for information about when this is executed
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--
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-- When you move your cursor, the highlights will be cleared (the second autocommand).
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local client = vim.lsp.get_client_by_id(event.data.client_id)
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if client and client.server_capabilities.documentHighlightProvider then
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vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
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buffer = event.buf,
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callback = vim.lsp.buf.document_highlight,
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})
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vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
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buffer = event.buf,
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callback = vim.lsp.buf.clear_references,
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})
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end
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-- The following autocommand is used to enable inlay hints in your
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-- code, if the language server you are using supports them
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--
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-- This may be unwanted, since they displace some of your code
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if client and client.server_capabilities.inlayHintProvider and vim.lsp.inlay_hint then
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map('<leader>th', function()
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vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled())
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end, '[T]oggle Inlay [H]ints')
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end
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-- if client.server_capabilities.documentSymbolProvider then
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-- require('nvim-navic').attach(client, event.buf)
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-- end
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end
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return M
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