docs(:lang): update READMEs to new format
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Henrik Lissner
Henrik Lissner
parent
ca7579a1e9
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20cac97c08
61 changed files with 4261 additions and 2634 deletions
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@ -1,73 +1,71 @@
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#+TITLE: lang/cc
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#+DATE: January 16, 2017
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#+SINCE: v2.0
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#+STARTUP: inlineimages
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← [[doom-module-index:][Back to module index]] ↙ [[doom-module-issues:::lang cc][Issues]] ↖ [[doom-module-source:lang/cc][Source]] ± [[doom-suggest-edit:][Suggest edits]] ? [[doom-help-modules:][Help]]
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--------------------------------------------------------------------------------
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#+TITLE: :lang cc
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#+SUBTITLE: C > C++ == 1
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#+CREATED: February 20, 2017
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#+SINCE: 2.0.0
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* Table of Contents :TOC_3:noexport:
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- [[#description][Description]]
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- [[#module-flags][Module Flags]]
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- [[#plugins][Plugins]]
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- [[#prerequisites][Prerequisites]]
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- [[#lsp-servers][LSP servers]]
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- [[#irony-server][irony-server]]
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- [[#macos][macOS]]
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- [[#rtags][rtags]]
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- [[#configure][Configure]]
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- [[#project-compile-settings][Project compile settings]]
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- [[#known-issues-with-bear-on-macos][Known issues with bear on macOS]]
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- [[#configure-lsp-servers][Configure LSP servers]]
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- [[#lsp-mode-with-clangd][LSP-mode with clangd]]
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- [[#lsp-mode-with-ccls][LSP-mode with ccls]]
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- [[#eglot-with-clangd][Eglot with clangd]]
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- [[#eglot-with-ccls][Eglot with ccls]]
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- [[#appendix][Appendix]]
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- [[#eglot-specific-bindings][Eglot specific bindings]]
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* Description
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* Description :unfold:
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This module adds support for the C-family of languages: C, C++, and Objective-C.
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+ Code completion (~company-irony~)
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+ eldoc support (~irony-eldoc~)
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+ Syntax-checking (~flycheck-irony~)
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+ Code navigation (~rtags~)
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+ File Templates ([[../../editor/file-templates/templates/c-mode][c-mode]], [[../../editor/file-templates/templates/c++-mode][c++-mode]])
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+ Snippets ([[https://github.com/hlissner/doom-snippets/tree/master/cc-mode][cc-mode]], [[https://github.com/hlissner/doom-snippets/tree/master/c-mode][c-mode]], [[https://github.com/hlissner/doom-snippets/tree/master/c++-mode][c++-mode]])
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+ Several improvements to C++11 indentation and syntax highlighting.
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- Code completion (~company-irony~)
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- eldoc support (~irony-eldoc~)
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- Syntax-checking (~flycheck-irony~)
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- Code navigation (~rtags~)
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- File Templates ([[../../editor/file-templates/templates/c-mode][c-mode]], [[../../editor/file-templates/templates/c++-mode][c++-mode]])
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- Snippets ([[https://github.com/hlissner/doom-snippets/tree/master/cc-mode][cc-mode]], [[https://github.com/hlissner/doom-snippets/tree/master/c-mode][c-mode]], [[https://github.com/hlissner/doom-snippets/tree/master/c++-mode][c++-mode]])
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- Several improvements to C++11 indentation and syntax highlighting.
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** Module Flags
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+ ~+lsp~ Disables irony+rtags and replaces them with LSP (ccls by default). This
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requires the =:tools lsp= module.
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** Maintainers
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- [[doom-user:][@hlissner]]
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** Plugins
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+ [[https://github.com/Kitware/CMake][cmake-mode]]
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+ [[https://github.com/chachi/cuda-mode][cuda-mode]]
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+ [[https://github.com/liblit/demangle-mode][demangle-mode]]
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+ [[https://github.com/jart/disaster][disaster]]
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+ [[https://github.com/ludwigpacifici/modern-cpp-font-lock][modern-cpp-font-lock]]
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+ [[https://github.com/salmanebah/opencl-mode][opencl-mode]]
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+ [[https://github.com/jimhourihan/glsl-mode][glsl-mode]]*
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+ [[https://github.com/guidoschmidt/company-glsl][company-glsl]]*
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+ =+lsp=
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+ [[https://github.com/MaskRay/emacs-ccls][ccls]] if =:tools lsp= has *no* =+eglot= flag
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+ =-lsp=
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+ [[https://github.com/Sarcasm/irony-mode][irony]]
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+ [[https://github.com/ikirill/irony-eldoc][irony-eldoc]]
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+ [[https://github.com/Sarcasm/flycheck-irony][flycheck-irony]]
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+ [[https://github.com/Sarcasm/company-irony][company-irony]]
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+ [[https://github.com/hotpxl/company-irony-c-headers][company-irony-c-headers]]
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+ [[https://github.com/Andersbakken/rtags][rtags]]
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+ [[https://github.com/Andersbakken/rtags][ivy-rtags]]
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+ [[https://github.com/Andersbakken/rtags][helm-rtags]]
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[[doom-contrib-maintainer:][Become a maintainer?]]
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** Module flags
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- +lsp ::
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Enable LSP support for ~c-mode~, ~c++-mode~, and ~objc-mode~. Requires [[doom-module:][:tools
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lsp]] and a langserver (supports ccls, clangd, and cquery). Replaces irony &
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rtags.
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** Packages
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- [[doom-package:][cmake-mode]]
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- [[doom-package:][company-glsl]]
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- [[doom-package:][cuda-mode]]
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- [[doom-package:][demangle-mode]]
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- [[doom-package:][disaster]]
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- [[doom-package:][glsl-mode]]
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- [[doom-package:][modern-cpp-font-lock]]
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- [[doom-package:][opencl-mode]]
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- if [[doom-module:][+lsp]]
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- [[doom-package:][ccls]] if [[doom-module:][:tools lsp -eglot]]
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- else
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- [[doom-package:][company-irony]]
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- [[doom-package:][company-irony-c-headers]]
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- [[doom-package:][flycheck-irony]]
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- [[doom-package:][helm-rtags]] if [[doom-module:][:completion helm]]
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- [[doom-package:][irony]]
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- [[doom-package:][irony-eldoc]]
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- [[doom-package:][ivy-rtags]] if [[doom-module:][:completion ivy]]
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- [[doom-package:][rtags]]
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** Hacks
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/No hacks documented for this module./
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** TODO Changelog
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# This section will be machine generated. Don't edit it by hand.
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/This module does not have a changelog yet./
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* Installation
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[[id:01cffea4-3329-45e2-a892-95a384ab2338][Enable this module in your ~doom!~ block.]]
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* Prerequisites
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This module's requirements change depending on how you use it.
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+ If =+lsp= is enabled, you need one of *clangd v9+* or *ccls*.
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+ If =+lsp= is *not* enabled, you need *irony-server* and *rtags*.
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+ Other features in this module depend on:
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+ (optional) glslangValidator, for GLSL completion in ~glsl-mode~
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+ (optional) cmake, for code completion in ~cmake-mode~
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+ You will need a C/C++ compiler, like =gcc= or =clang=.
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- If [[doom-module:][+lsp]] is enabled, you need one of *clangd v9+* or *ccls*.
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- If [[doom-module:][+lsp]] is *not* enabled, you need *irony-server* and *rtags*.
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- Other features in this module depend on:
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- (optional) glslangValidator, for GLSL completion in ~glsl-mode~
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- (optional) cmake, for code completion in ~cmake-mode~
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- You will need a C/C++ compiler, like =gcc= or =clang=.
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** LSP servers
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=lsp-mode= and =eglot= support a few LSP servers, but =clangd= and =ccls= are
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@ -76,13 +74,13 @@ recommended.
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+ clangd (must be v9 or newer) :: clangd is included with =llvm= which should be
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available through your OS' package manager.
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- Linux:
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- Debian 11 & Ubuntu 20.10: ~# apt-get install clangd-11~
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- Debian 11 & Ubuntu 20.10: ~$ apt-get install clangd-11~
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- 20.04 LTS: [[https://pkgs.org/search/?q=clangd][clangd-10]]
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- Fedora & CentOS/RHEL 8+: ~# dnf install clang-tools-extra~
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- openSUSE: ~# zypper install clang~
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- Arch: ~# pacman -S clang~
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- Fedora & CentOS/RHEL 8+: ~$ dnf install clang-tools-extra~
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- openSUSE: ~$ zypper install clang~
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- Arch: ~$ pacman -S clang~
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- BSDs:
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- NetBSD & OpenBSD: ~# pkg_add clang-tools-extra~
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- NetBSD & OpenBSD: ~$ pkg_add clang-tools-extra~
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- macOS: ~$ brew install llvm~ // 1GB+ installation! May take a while!
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- Windows: use the win64 installer from [[https://releases.llvm.org/download.html][LLVM's GitHub release page]].
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+ ccls :: Available in many OS' package managers as =ccls=. Otherwise, there are
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@ -97,14 +95,13 @@ irony-install-server~ in Emacs.
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*** macOS
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Due to linking issues, macOS users must compile irony-server manually:
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#+BEGIN_SRC sh
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#+begin_src sh
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brew install cmake
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brew install llvm
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git clone https://github.com/Sarcasm/irony-mode irony-mode
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#+END_SRC
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#+end_src
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#+BEGIN_SRC bash
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#+begin_src sh
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mkdir irony-mode/server/build
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pushd irony-mode/server/build
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@ -121,7 +118,7 @@ install_name_tool -change @rpath/libclang.dylib \
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# Cleanup
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popd
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rm -rf irony-mode
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#+END_SRC
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#+end_src
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** rtags
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Code navigation requires an [[https://github.com/Andersbakken/rtags][rtags]] server (~rdm~) installed. This should be
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@ -130,12 +127,36 @@ available through your OS's package manager.
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This module will auto-start ~rdm~ when you open C/C++ buffers (so long as one
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isn't already running). If you prefer to run it yourself:
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#+BEGIN_SRC sh
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#+begin_src sh
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rdm &
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rc -J $PROJECT_ROOT # loads PROJECT_ROOT's compile_commands.json
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#+END_SRC
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#+end_src
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* TODO Usage
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#+begin_quote
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🔨 /This module's usage documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
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#+end_quote
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1. Enable this module.
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2. Enable the ~+lsp~ flag for the appropriate modules you want LSP support for
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(e.g. ~:lang (python +lsp)~ or ~:lang (rust +lsp)~),
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3. Install the prerequisite LSP servers through your package manager or other
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means. You can find a list of supported servers on [[https://github.com/emacs-lsp/lsp-mode#supported-languages][the lsp-mode project page]].
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4. Run ~$ doom sync~ on the command line and restart Emacs.
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** Eglot-specific bindings
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When using [[doom-module:][+lsp]] and [[doom-module:][:tools lsp +eglot]], [[doom-package:][lsp-mode]] is replaced with [[doom-package:][eglot]], and an
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additional function to get inheritance type hierarchy is added:
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| Binding | Description |
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|----------------------------+------------------------------------------------|
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| [[kbd:][<localleader> c t]] | Display inheritance type hierarchy (upwards) |
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| [[kbd:][<prefix> <localleader> c t]] | Display inheritance type hierarchy (downwards) |
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* TODO Configure
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#+begin_quote
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🔨 /This module's configuration documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
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#+end_quote
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* Configure
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** Project compile settings
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By default, a set of default compile settings are defined in
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~+cc-default-compiler-options~ for C, C++ and Objective C. Irony, rtags and
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@ -145,16 +166,16 @@ For a more universal solution: both LSP servers and irony will recognize a
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[[https://sarcasm.github.io/notes/dev/compilation-database.html#ninja][compilation database]] (a ~compile_commands.json~ file). There are [[https://sarcasm.github.io/notes/dev/compilation-database.html][many ways to
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generate one]]. Here is an example using [[http://www.cmake.org/][CMake]] and [[https://github.com/rizsotto/Bear][bear]]:
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#+BEGIN_SRC sh
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#+begin_src sh
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# For CMake projects
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cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON .
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#+END_SRC
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#+end_src
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#+BEGIN_SRC sh
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#+begin_src sh
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# For non-CMake projects
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make clean
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bear make
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#+END_SRC
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#+end_src
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Use ~M-x +cc/reload-compile-db~ to reload your compile db in an already-open
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C/C++/ObjC buffer.
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@ -164,7 +185,6 @@ MacOS' [[https://support.apple.com/en-us/HT204899][System Integrity Protection (
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under ~/usr/bin/~ which results in an empty compilation database.
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From the bear [[https://github.com/rizsotto/Bear#empty-compilation-database-on-os-x-captain-or-fedora][readme]]:
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#+begin_quote
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Security extension/modes on different operating systems might disable library
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preloads. This case Bear behaves normally, but the result compilation database
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@ -182,77 +202,76 @@ such tool might be scan-build. The build system shall respect CC and CXX
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environment variables.
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#+end_quote
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A workaround might be to install ~make~ via Homebrew which puts ~gmake~
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under ~/usr/local/~.
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#+BEGIN_SRC sh
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A workaround might be to install ~make~ via Homebrew which puts ~gmake~ under
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=/usr/local/=:
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#+begin_src sh
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brew install make
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#+END_SRC
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#+BEGIN_SRC sh
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#+end_src
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#+begin_src sh
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make clean
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bear gmake
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#+END_SRC
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#+end_src
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Additional info:
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+ [[https://github.com/rizsotto/Bear/issues/158][Empty compilation database with compiler in /usr/local]]
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+ [[https://github.com/rizsotto/Bear/issues/152][Workaround for 'Empty compilation database on OS X Captain]]
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- [[https://github.com/rizsotto/Bear/issues/158][Empty compilation database with compiler in /usr/local]]
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- [[https://github.com/rizsotto/Bear/issues/152][Workaround for 'Empty compilation database on OS X Captain]]
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** Configure LSP servers
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Search for your combination of =(LSP client package, LSP server)=. You are using
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=LSP-mode= by default, =eglot= if you have =:tools (lsp +eglot)= active in your
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=init.el= file.
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[[doom-package:][lsp-mode]] by default, [[doom-package:][eglot]] if you have [[doom-module:][:tools lsp +eglot]] active in
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=$DOOMDIR/init.el= file.
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*** LSP-mode with clangd
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#+begin_src emacs-lisp
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(after! lsp-clangd
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(setq lsp-clients-clangd-args
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'("-j=3"
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"--background-index"
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"--clang-tidy"
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"--completion-style=detailed"
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"--header-insertion=never"
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"--header-insertion-decorators=0"))
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(set-lsp-priority! 'clangd 2))
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#+end_src
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#+BEGIN_SRC elisp
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(setq lsp-clients-clangd-args '("-j=3"
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"--background-index"
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"--clang-tidy"
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"--completion-style=detailed"
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"--header-insertion=never"
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"--header-insertion-decorators=0"))
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(after! lsp-clangd (set-lsp-priority! 'clangd 2))
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#+END_SRC
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This will both set your clangd flags and choose =clangd= as the default LSP server everywhere clangd can be used.
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This will both set your clangd flags and choose =clangd= as the default LSP
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server everywhere clangd can be used.
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*** LSP-mode with ccls
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#+BEGIN_SRC elisp
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#+begin_src emacs-lisp
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(after! ccls
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(setq ccls-initialization-options '(:index (:comments 2) :completion (:detailedLabel t)))
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(set-lsp-priority! 'ccls 2)) ; optional as ccls is the default in Doom
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#+END_SRC
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#+end_src
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This will both set your ccls flags and choose ccls as the default server. [[https://github.com/MaskRay/ccls/wiki/Customization#--initjson][CCLS
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documentation]] lists available options, use =t= for ~true~, =:json-false= for
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~false~, and =:json-null= for ~null~.
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*** Eglot with clangd
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#+BEGIN_SRC elisp
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#+begin_src emacs-lisp
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(set-eglot-client! 'cc-mode '("clangd" "-j=3" "--clang-tidy"))
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#+END_SRC
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#+end_src
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This will both set your clangd flags and choose clangd as the default server (if
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it is the last =set-eglot-client! 'cc-mode= in your config).
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*** Eglot with ccls
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#+BEGIN_SRC elisp
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#+begin_src emacs-lisp
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(set-eglot-client! 'cc-mode '("ccls" "--init={\"index\": {\"threads\": 3}}"))
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#+END_SRC
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#+end_src
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This will both set your ccls flags and choose ccls as the default server (if it
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is the last =set-eglot-client! 'cc-mode= in your config). [[https://github.com/MaskRay/ccls/wiki/Customization#--initjson][CCLS documentation]]
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lists available options
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* Appendix
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** Eglot specific bindings
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When using =+lsp= and =:tools (lsp +eglot)=, lsp-mode is replaced with eglot,
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and an additional function to get inheritance type hierarchy is added
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| Binding | Description |
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|------------------------------+--------------------------------------------------|
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| ~<localleader> c t~ | ~Display inheritance type hierarchy (upwards)~ |
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| ~<prefix> <localleader> c t~ | ~Display inheritance type hierarchy (downwards)~ |
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* Troubleshooting
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/There are no known problems with this module./ [[doom-report:][Report one?]]
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* Frequently asked questions
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/This module has no FAQs yet./ [[doom-suggest-faq:][Ask one?]]
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* TODO Appendix
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#+begin_quote
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🔨 This module has no appendix yet. [[doom-contrib-module:][Write one?]]
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#+end_quote
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