From: Philipp Stephani <phst@google.com>
Date: Wed, 23 Feb 2022 16:00:04 +0000 (+0100)
Subject: clang-format.el: Make clang-format work in indirect buffers.
X-Git-Tag: upstream/15.0.7~15531
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2f906683ed14668ceed1f85922789abffd8429fd;p=platform%2Fupstream%2Fllvm.git

clang-format.el: Make clang-format work in indirect buffers.

In an indirect buffer, buffer-file-name is nil, so check the base buffer
instead.  This works fine in direct buffers where buffer-base-buffer returns
nil.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D120408
---

diff --git a/clang/tools/clang-format/clang-format.el b/clang/tools/clang-format/clang-format.el
index 768acb3..4e6daa8 100644
--- a/clang/tools/clang-format/clang-format.el
+++ b/clang/tools/clang-format/clang-format.el
@@ -147,7 +147,7 @@ uses the function `buffer-file-name'."
     (setq style clang-format-style))
 
   (unless assume-file-name
-    (setq assume-file-name buffer-file-name))
+    (setq assume-file-name (buffer-file-name (buffer-base-buffer))))
 
   (let ((file-start (clang-format--bufferpos-to-filepos start 'approximate
                                                         'utf-8-unix))