[libclang]: Honor LIBCLANG_NOTHREADS for clang_parseTranslationUnit*

Looks like this one was forgotten for clang_parseTranslationUnit*, as
LIBCLANG_NOTHREADS is checked for/in:

clang_saveTranslationUnit()
clang_reparseTranslationUnit()
clang_codeCompleteAt()
clang_indexTranslationUnit()
clang_indexSourceFile()

Patch by Nikolai Kosjar!

Differential Revision: https://reviews.llvm.org/D36821

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311990 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index ca21b6c6f68fa13bad43b5bba48ab083f260f82a..ed4f263945e31cb6ec6cc68a00e9012043f041bb 100644 (file)
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -3504,6 +3504,12 @@ enum CXErrorCode clang_parseTranslationUnit2FullArgv(
         CIdx, source_filename, command_line_args, num_command_line_args,
         llvm::makeArrayRef(unsaved_files, num_unsaved_files), options, out_TU);
   };
+
+  if (getenv("LIBCLANG_NOTHREADS")) {
+    ParseTranslationUnitImpl();
+    return result;
+  }
+
   llvm::CrashRecoveryContext CRC;
 
   if (!RunSafely(CRC, ParseTranslationUnitImpl)) {