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-rw-r--r--clang/tools/clang-format/clang-format.el13
1 files changed, 13 insertions, 0 deletions
diff --git a/clang/tools/clang-format/clang-format.el b/clang/tools/clang-format/clang-format.el
index 3096ec12f55..768acb3a5d0 100644
--- a/clang/tools/clang-format/clang-format.el
+++ b/clang/tools/clang-format/clang-format.el
@@ -57,6 +57,18 @@ of the buffer."
:safe #'stringp)
(make-variable-buffer-local 'clang-format-style)
+(defcustom clang-format-fallback-style "none"
+ "Fallback style to pass to clang-format.
+
+This style will be used if clang-format-style is set to \"file\"
+and no .clang-format is found in the directory of the buffer or
+one of parent directories. Set to \"none\" to disable formatting
+in such buffers."
+ :group 'clang-format
+ :type 'string
+ :safe #'stringp)
+(make-variable-buffer-local 'clang-format-fallback-style)
+
(defun clang-format--extract (xml-node)
"Extract replacements and cursor information from XML-NODE."
(unless (and (listp xml-node) (eq (xml-node-name xml-node) 'replacements))
@@ -162,6 +174,7 @@ uses the function `buffer-file-name'."
,@(and assume-file-name
(list "-assume-filename" assume-file-name))
,@(and style (list "-style" style))
+ "-fallback-style" ,clang-format-fallback-style
"-offset" ,(number-to-string file-start)
"-length" ,(number-to-string (- file-end file-start))
"-cursor" ,(number-to-string cursor))))
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