[PCH] Mark a PCH file with a flag to indicate if the serialized AST had

compiler errors or not.

-Control whether ASTReader should reject such a PCH by a boolean flag at ASTReader's creation time.
By default, such a PCH file will be rejected with an error when trying to load it.

[libclang] Allow clang_saveTranslationUnit to create a PCH file even if compiler errors
occurred.
-Have libclang API calls accept a PCH that had compiler errors.

The general idea is that we want libclang to stay functional even if a PCH had a compiler error.
rdar://10976363.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152192 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/libclang/Indexing.cpp b/tools/libclang/Indexing.cpp
index 1475859e33..aad6e02fe9 100644
--- a/tools/libclang/Indexing.cpp
+++ b/tools/libclang/Indexing.cpp
@@ -369,6 +369,7 @@ static void clang_indexSourceFile_Impl(void *UserData) {
   bool CacheCodeCompletionResults = false;
   PreprocessorOptions &PPOpts = CInvok->getPreprocessorOpts(); 
   PPOpts.DetailedRecord = false;
+  PPOpts.AllowPCHWithCompilerErrors = true;
 
   if (requestedToGetTU) {
     OnlyLocalDecls = CXXIdx->getOnlyLocalDecls();