diff options
| -rw-r--r-- | clang-tools-extra/include-fixer/tool/clang-include-fixer.el | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/clang-tools-extra/include-fixer/tool/clang-include-fixer.el b/clang-tools-extra/include-fixer/tool/clang-include-fixer.el index ab7a59cea78..194f4b17f1f 100644 --- a/clang-tools-extra/include-fixer/tool/clang-include-fixer.el +++ b/clang-tools-extra/include-fixer/tool/clang-include-fixer.el @@ -244,7 +244,13 @@ clang-include-fixer to insert the selected header." (clang-include-fixer--select-header context) ;; Call clang-include-fixer again to insert the selected header. (clang-include-fixer--start - #'clang-include-fixer--replace-buffer + (let ((old-tick (buffer-chars-modified-tick))) + (lambda (stdout) + (when (/= old-tick (buffer-chars-modified-tick)) + ;; Replacing the buffer now would undo the user’s changes. + (user-error (concat "The buffer has been changed " + "before the header could be inserted"))) + (clang-include-fixer--replace-buffer stdout))) (format "-insert-header=%s" (clang-include-fixer--encode-json context))))))) nil) |
