5fc4ed3f81
Doom used to have its own cc-mode style, which was difficult to customize without first undoing all its changes. A doom entry has been added to c-style-alist, which represents a marriage of various styles (mostly linux), plus some context-sensitive indentation functions which I think are reasonable. More importantly, it can be disabled by changing c-default-style. Also, removed a few hacks that have been merged into v5.33+ of cc-mode. 25.1 users beware! You may not have these changes.
90 lines
3.2 KiB
EmacsLisp
90 lines
3.2 KiB
EmacsLisp
;;; lang/cc/autoload.el -*- lexical-binding: t; -*-
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;;;###autoload
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(defun +cc/reload-compile-db ()
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"Reload the current project's JSON compilation database."
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(interactive)
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(unless (memq major-mode '(c-mode c++-mode objc-mode))
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(user-error "Not a C/C++/ObjC buffer"))
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(unless (doom-project-has! "compile_commands.json")
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(user-error "No compile_commands.json file"))
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;; first rtag
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(when (and (featurep 'rtags)
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rtags-enabled
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(executable-find "rc"))
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(with-temp-buffer
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(message "Reloaded compile commands for rtags daemon")
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(rtags-call-rc :silent t "-J" (doom-project-root))))
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;; then irony
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(when (and (featurep 'irony) irony-mode)
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(+cc|irony-init-compile-options)))
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;;;###autoload
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(defun +cc-sp-point-is-template-p (id action context)
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"Return t if point is in the right place for C++ angle-brackets."
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(and (sp-in-code-p id action context)
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(cond ((eq action 'insert)
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(sp-point-after-word-p id action context))
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((eq action 'autoskip)
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(/= (char-before) 32)))))
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;;;###autoload
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(defun +cc-sp-point-after-include-p (id action context)
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"Return t if point is in an #include."
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(and (sp-in-code-p id action context)
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(save-excursion
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(goto-char (line-beginning-position))
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(looking-at-p "[ ]*#include[^<]+"))))
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;;;###autoload
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(defun +cc-c++-lineup-inclass (langelem)
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"Indent inclass lines one level further than access modifier keywords."
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(when (and (eq major-mode 'c++-mode)
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(or (assoc 'access-label c-syntactic-context)
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(save-excursion
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(save-match-data
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(re-search-backward
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"\\(?:p\\(?:ublic\\|r\\(?:otected\\|ivate\\)\\)\\)"
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(c-langelem-pos langelem) t)))))
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'++))
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;;;###autoload
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(defun +cc-lineup-arglist-close (langlem)
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"Line up the closing brace in an arglist with the opening brace IF cursor is
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preceded by the opening brace or a comma (disregarding whitespace in between)."
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(when (save-excursion
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(save-match-data
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(skip-chars-backward " \t\n" (c-langelem-pos langelem))
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(memq (char-before) (list ?, ?\( ?\;))))
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(c-lineup-arglist langlem)))
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;;
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;; Hooks
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;;
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;;;###autoload
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(defun +cc|fontify-constants ()
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"Better fontification for preprocessor constants"
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(font-lock-add-keywords
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nil '(("\\<[A-Z]*_[A-Z_]+\\>" . font-lock-constant-face)
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("\\<[A-Z]\\{3,\\}\\>" . font-lock-constant-face))
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t))
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;;;###autoload
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(defun +cc|irony-init-compile-options ()
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"Initialize compiler options for irony-mode. It searches for the nearest
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compilation database and initailizes it, otherwise falling back on
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`+cc-default-compiler-options' and `+cc-default-include-paths'.
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See https://github.com/Sarcasm/irony-mode#compilation-database for details on
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compilation dbs."
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(when (memq major-mode '(c-mode c++-mode objc-mode))
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(require 'irony-cdb)
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(unless (irony-cdb-autosetup-compile-options)
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(irony-cdb--update-compile-options
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(append (delq nil (cdr-safe (assq major-mode +cc-default-compiler-options)))
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(cl-loop for path in +cc-default-include-paths
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nconc (list "-I" path)))
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(doom-project-root)))))
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