From: Daniel Jasper <djasper@google.com>
Date: Wed, 6 May 2015 11:56:54 +0000 (+0000)
Subject: clang-format: Don't allow -i when reading from stdin.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=92e78b69dfb77849617ab60500745983c3254573;p=clang

clang-format: Don't allow -i when reading from stdin.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@236592 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/tools/clang-format/ClangFormat.cpp b/tools/clang-format/ClangFormat.cpp
index f611f70246..fe7d678852 100644
--- a/tools/clang-format/ClangFormat.cpp
+++ b/tools/clang-format/ClangFormat.cpp
@@ -247,7 +247,9 @@ static bool format(StringRef FileName) {
     Rewriter Rewrite(Sources, LangOptions());
     tooling::applyAllReplacements(Replaces, Rewrite);
     if (Inplace) {
-      if (Rewrite.overwriteChangedFiles())
+      if (FileName == "-")
+        llvm::errs() << "error: cannot use -i when reading from stdin.\n";
+      else if (Rewrite.overwriteChangedFiles())
         return true;
     } else {
       if (Cursor.getNumOccurrences() != 0)