Fix flycheck clang args loading (zhengyangfeng00)

syl20bnr · Dec 9, 2015 · 98c0702 · 98c0702
1 parent 549219e
commit 98c0702
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Showing 3 changed files with 54 additions and 39 deletions.
diff --git a/layers/+lang/c-c++/config.el b/layers/+lang/c-c++/config.el
@@ -1,4 +1,4 @@
-;;; packages.el --- C/C++ Layer packages File for Spacemacs
+;;; config.el --- C/C++ Layer config File for Spacemacs
 ;;
 ;; Copyright (c) 2012-2014 Sylvain Benner
 ;; Copyright (c) 2014-2015 Sylvain Benner & Contributors

diff --git a/layers/+lang/c-c++/funcs.el b/layers/+lang/c-c++/funcs.el
@@ -0,0 +1,49 @@
+;;; funcs.el --- C/C++ Layer functions File for Spacemacs
+;;
+;; Copyright (c) 2012-2014 Sylvain Benner
+;; Copyright (c) 2014-2015 Sylvain Benner & Contributors
+;;
+;; Author: Sylvain Benner <sylvain.benner@gmail.com>
+;; URL: https://github.com/syl20bnr/spacemacs
+;;
+;; This file is not part of GNU Emacs.
+;;
+;;; License: GPLv3
+
+;; Based on the Sarcasm/irony-mode compilation database code.
+(defun company-mode/find-clang-complete-file ()
+  (when buffer-file-name
+    (let ((dir (locate-dominating-file buffer-file-name ".clang_complete")))
+      (when dir
+        (concat (file-name-as-directory dir) ".clang_complete")))))
+
+;; Based on the Sarcasm/irony-mode compilation database code.
+(defun company-mode/load-clang-complete-file (cc-file)
+  "Load the flags from CC-FILE, one flag per line."
+  (let ((invocation-dir (expand-file-name (file-name-directory cc-file)))
+        (case-fold-search nil)
+        compile-flags)
+    (with-temp-buffer
+      (insert-file-contents cc-file)
+      ;; Replace relative paths with absolute paths (by @trishume)
+      ;; (goto-char (point-min))
+      (while (re-search-forward "\\(-I\\|-isystem\n\\)\\(\\S-\\)" nil t)
+        (replace-match (format "%s%s" (match-string 1)
+                               (expand-file-name (match-string 2) invocation-dir))))
+      ;; Turn lines into a list
+      (setq compile-flags
+            ;; remove whitespaces at the end of each line, if any
+            (mapcar #'(lambda (line)
+                        (if (string-match "[ \t]+$" line)
+                            (replace-match "" t t line)
+                          line))
+                    (split-string (buffer-string) "\n" t))))
+    compile-flags))
+
+(defun c-c++/load-clang-args ()
+  "Sets the arguments for company-clang based on a project-specific text file."
+  (unless company-clang-arguments
+    (let* ((cc-file (company-mode/find-clang-complete-file))
+           (flags (if cc-file (company-mode/load-clang-complete-file cc-file) '())))
+      (setq-local company-clang-arguments flags)
+      (setq flycheck-clang-args flags))))
diff --git a/layers/+lang/c-c++/packages.el b/layers/+lang/c-c++/packages.el
@@ -75,45 +75,9 @@
 
     (when c-c++-enable-clang-support
       (push 'company-clang company-backends-c-mode-common)
-      ;; .clang_complete file loading
-      ;; Sets the arguments for company-clang based on a project-specific text file.
-
-      ;; START Based on the Sarcasm/irony-mode compilation database code.
-      (defun company-mode/find-clang-complete-file ()
-        (when buffer-file-name
-          (let ((dir (locate-dominating-file buffer-file-name ".clang_complete")))
-            (when dir
-              (concat (file-name-as-directory dir) ".clang_complete")))))
-
-      (defun company-mode/load-clang-complete-file (cc-file)
-        "Load the flags from CC-FILE, one flag per line."
-        (let ((invocation-dir (expand-file-name (file-name-directory cc-file)))
-              (case-fold-search nil)
-              compile-flags)
-          (with-temp-buffer
-            (insert-file-contents cc-file)
-            ;; Replace relative paths with absolute paths (by @trishume)
-            ;; (goto-char (point-min))
-            (while (re-search-forward "\\(-I\\|-isystem\n\\)\\(\\S-\\)" nil t)
-              (replace-match (format "%s%s" (match-string 1)
-                                     (expand-file-name (match-string 2) invocation-dir))))
-            ;; Turn lines into a list
-            (setq compile-flags
-                  ;; remove whitespaces at the end of each line, if any
-                  (mapcar #'(lambda (line)
-                              (if (string-match "[ \t]+$" line)
-                                  (replace-match "" t t line)
-                                line))
-                          (split-string (buffer-string) "\n" t))))
-          compile-flags))
-      ;; END Back to things written by @trishume
 
       (defun company-mode/more-than-prefix-guesser ()
-        (unless company-clang-arguments
-          (let* ((cc-file (company-mode/find-clang-complete-file))
-                 (flags (if cc-file (company-mode/load-clang-complete-file cc-file) '())))
-            (setq-local company-clang-arguments flags)
-            (setq flycheck-clang-args flags)))
+        (c-c++/load-clang-args)
         (company-clang-guess-prefix))
 
       (setq company-clang-prefix-guesser 'company-mode/more-than-prefix-guesser)))
@@ -127,7 +91,9 @@
 
 (defun c-c++/post-init-flycheck ()
   (dolist (mode '(c-mode c++-mode))
-    (spacemacs/add-flycheck-hook mode)))
+    (spacemacs/add-flycheck-hook mode))
+  (when c-c++-enable-clang-support
+    (spacemacs/add-to-hooks 'c-c++/load-clang-args '(c-mode-hook c++-mode-hook))))
 
 (defun c-c++/init-gdb-mi ()
   (use-package gdb-mi