lsp-execute-code-action ( s-l a a) - clangd is able to auto-correct some of the errors.lsp-rename ( s-l r r) - rename symbol/function at point.You may change the default prefix by setting Ships with which-key integration for better discoverability.īy default, lsp-mode's keybindings are available under s-l (Super-l), e. When a certain feature is supported by the server and when theĬorresponding Emacs package is installed. Lsp-mode has smart (almost) complete mnemonic keybindings which auto-enable Present, company-mode will be auto-configured and it will just work. Completion #īy default, lsp-mode uses company-mode as its completion frontend. Typically, this is the git repository root but since exceptions to this rule have caused us a lot of trouble in the past (monorepos come to mind), lsp-mode by default asks the user to manually confirm the project root the first time a project is opened. Note: the project root is needed by the language server in order to know where to Now, if everything was successful you will be asked to select a project root. "" ) t ) ( package-initialize ) ( setq package-selected-packages ' ( lsp-mode yasnippet lsp-treemacs helm-lsp projectile hydra flycheck company avy which-key helm-xref dap-mode )) ( when ( cl-find-if-not #' package-installed-p package-selected-packages ) ( package-refresh-contents ) ( mapc #' package-install package-selected-packages )) sample `helm' configuration use for details ( helm-mode ) ( require 'helm-xref ) ( define-key global-map #' helm-find-files ) ( define-key global-map #' helm-M-x ) ( define-key global-map #' helm-mini ) ( which-key-mode ) ( add-hook 'c-mode-hook 'lsp ) ( add-hook 'c++-mode-hook 'lsp ) ( setq gc-cons-threshold ( * 100 1024 1024 ) read-process-output-max ( * 1024 1024 ) treemacs-space-between-root-nodes nil company-idle-delay 0.0 company-minimum-prefix-length 1 lsp-idle-delay 0.1 ) clangd is fast ( with-eval-after-load 'lsp-mode ( add-hook 'lsp-mode-hook #' lsp-enable-which-key-integration ) ( require 'dap-cpptools ) ( yas-global-mode )) Feature overview #Īnd now it is time to start hacking on Emacs core! ( require 'package ) ( add-to-list 'package-archives ' ( "melpa". In your config or you could run in separate session. Please note that Emacs configuration frameworks such as Spacemacs or Doom Emacs often ship with lsp-mode settings of their own should you be using such a framework, and find that lsp-mode doesn't behave as intended, please make sure to follow this tutorial from a clean starting point. Here is a bare-bones lsp-mode/ dap-mode configuration template to get you started with your own lsp-mode config, or to try out in a separate one-off session. O0" CXXFLAGS="-ggdb3 -O0" LDFLAGS="-ggdb3" will compile Emacs with debug Prefixing make -j$(nproc) with bear will generate theĬompile_commands.json which later will be used by clangd. Sudo apt-get install -y build-essential git autoconf texinfo libgnutls28-dev libxml2-dev libncurses5-dev libjansson-devĬFLAGS = "-ggdb3 -O0" CXXFLAGS = "-ggdb3 -O0" LDFLAGS = "-ggdb3". In order to generate compile_commands.json for Emacs itself I have found You may read about them in clangd installation or in. You’ll probably get spurious errors about missing #include files, etc. Just a fact of life in C++, source files are not self-contained).īy default, clangd will assume your code is built as clang some_, and To understand your source code, clangd needs to know the compiler flags that are used to build the project. Note: for Debian based system use Project setup # In caseĬlangd is not present on the path clangd can be installed following their When it is installed on the host machine and it is present on the PATH. Pre-configured and it will be able to find the language server automatically For this guide we will be usingĬlangd but most of the steps here apply to ccls as well. Such script for installing a C/C++ language server due to their overallĬomplexity. Servers, lsp-mode ships with automatic installation scripts but there is no Production-ready language servers for C/C++ and Objective-C, Understands the specifics of your target language. Order for it to work, you have to install a separate language server that Lsp-mode is a client-server application with Emacs acting as the client.
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