173 lines
5.1 KiB
EmacsLisp
173 lines
5.1 KiB
EmacsLisp
;;; c++.el --- C++ settings. -*- lexical-binding: t; -*-
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;; Time-stamp: <2020-01-27T06:10:15+0100>
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;;; Commentary:
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;;; Code:
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(require 'basics/global-variables)
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(require 'programming/common)
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(unless slow-computer
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(use-package flycheck-clang-tidy
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:pin melpa
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:after (flycheck projectile lsp-ui)
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:if (executable-find "clang-tidy")
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;; clang-tidy is built into clangd >= 9.
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:if (< (my/clangd-version) 9.0)
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:config
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(defun my/clang-tidy-off ()
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"Disable c/c++-clang-tidy."
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(when (or (eq major-mode 'c++-mode) (eq major-mode 'c-mode))
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(add-to-list 'flycheck-disabled-checkers 'c/c++-clang-tidy))
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)
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(defun my/clang-tidy-on ()
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"Enable c/c++-clang-tidy."
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(when (or (eq major-mode 'c++-mode) (eq major-mode 'c-mode))
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(setq-local flycheck-disabled-checkers
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(remove 'c/c++-clang-tidy flycheck-disabled-checkers)))
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)
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(defun my/flycheck-clang-tidy-setup ()
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(flycheck-clang-tidy-setup)
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;; Run clang-tidy after the lsp-ui checker.
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(when lsp-mode
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(unless (equal (flycheck-get-next-checker-for-buffer 'lsp-ui)
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'c/c++-clang-tidy)
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(flycheck-add-next-checker 'lsp-ui '(warning . c/c++-clang-tidy)))))
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:hook
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(flycheck-mode . my/flycheck-clang-tidy-setup)
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(first-change . my/clang-tidy-off) ; Disable when file is modified.
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(before-save . my/clang-tidy-on) ; Enable if file is saved.
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)
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) ; unless slow-computer.
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;; Highlight Doxygen comments.
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(use-package highlight-doxygen
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:custom-face
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(highlight-doxygen-comment ((t (:inherit font-lock-comment-face
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:foreground "#667788"))))
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(highlight-doxygen-code-block ((t (:inherit highlight-doxygen-comment-face))))
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:hook
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(prog-mode . highlight-doxygen-mode)
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)
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;; Set coding style.
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(use-package cc-mode
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:config
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(c-add-style ; Construct own coding style definition.
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"tastytea"
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'("bsd"
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(c-basic-offset . 4) ; Indent with 4 spaces.
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(c-offsets-alist . ((innamespace . [0]))) ; Don't indent in namespaces.
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))
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(c-add-style
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"tastytea-legacy" ; For old code.
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'("bsd"
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(c-basic-offset . 4)))
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(defun my/get-builddir ()
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(if (member 'projectile-mode minor-mode-list)
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(concat (projectile-project-root) "build")
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nil))
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:custom
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(c-default-style "tastytea")
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)
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;; Highlighting and indentation for CMake.
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(use-package cmake-mode
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;; The CMake ebuild installs and activates the mode.
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:unless (string-match-p "gentoo" operating-system-release)
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:mode
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("CMakeLists\\.txt$" . cmake-mode)
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("\\.cmake$" . cmake-mode)
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)
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;; CMake reference.
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(use-package eldoc-cmake
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:after cmake-mode
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:hook
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(cmake-mode . eldoc-cmake-enable)
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)
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;; GUI for gdb and other debuggers.
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(use-package realgud
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:after (cc-mode)
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:functions (realgud:gdb)
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:config
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(defun my/launch-gdb ()
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"Load realgud and launch gdb."
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(interactive)
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(load-library "realgud")
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(realgud:gdb))
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:bind
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(:map c-mode-base-map
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("C-c g" . my/launch-gdb)
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("M-<down>" . nil) ; Disabled, because I use them for scrolling.
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("M-<up>" . nil)) ; ^ FIXME: Does not work. ^
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)
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;; Extra highlighting.
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(use-package modern-cpp-font-lock
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:hook
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(c++-mode . modern-c++-font-lock-mode)
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)
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;; Add #include directives for missing symbols.
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(use-package clang-include-fixer
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:ensure nil ; Installed by clang.
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:if (executable-find "clang-include-fixer")
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:functions (clang-include-fixer--start clang-include-fixer--add-header)
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:init
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(defvar my/llvm-path
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(concat (file-name-directory (executable-find "clang-include-fixer")) ".."))
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(add-to-list 'load-path (concat my/llvm-path "/share/clang"))
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:config
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(defun my/clang-find-all-symbols ()
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"Invokes run-find-all-symbols.py."
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(interactive)
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(shell-command (concat "cd " (my/get-builddir) " && "
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my/llvm-path "/share/clang/run-find-all-symbols.py"
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" -b " my/llvm-path "/bin/find-all-symbols")))
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(defun my/clang-include-fixer ()
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"Invoke clang-include-fixer with -p=build."
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(interactive)
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(message (concat "Calling the include fixer. "
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"This might take some seconds. Please wait."))
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(clang-include-fixer--start #'clang-include-fixer--add-header
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"-output-headers"
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(concat "-p=" (my/get-builddir))))
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:bind
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("C-x M-i" . my/clang-include-fixer)
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)
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(use-package find-file
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:custom
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(cc-search-directories '("." ; Set directories for ff-find-other-file.
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"../src"
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"../include"
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"../../src"
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"../../include"
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"../src/*"
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"../include/*"
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"../../src/*"
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"../../include/*"
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"/usr/include"
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"/usr/local/include/*"))
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)
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(provide 'programming/c++)
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;;; c++.el ends here
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