r182290 - Minor fix: don't crash on empty configuration file, consider empty configuration files invalid.

[Alexander Kornienko]

Author: alexfh
Date: Mon May 20 10:18:01 2013
New Revision: 182290

URL: http://llvm.org/viewvc/llvm-project?rev=182290&view=rev
Log:
Minor fix: don't crash on empty configuration file, consider empty configuration files invalid.

Modified:
    cfe/trunk/lib/Format/Format.cpp

Modified: cfe/trunk/lib/Format/Format.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Format/Format.cpp?rev=182290&r1=182289&r2=182290&view=diff
==============================================================================
--- cfe/trunk/lib/Format/Format.cpp (original)
+++ cfe/trunk/lib/Format/Format.cpp Mon May 20 10:18:01 2013
@@ -201,6 +201,8 @@ bool getPredefinedStyle(StringRef Name,
 }
 
 llvm::error_code parseConfiguration(StringRef Text, FormatStyle *Style) {
+  if (Text.trim().empty())
+    return llvm::make_error_code(llvm::errc::invalid_argument);
   llvm::yaml::Input Input(Text);
   Input >> *Style;
   return Input.error();