[libclang] Allow skipping warnings from all included files

Depending on the included files and the used warning flags, e.g. -
Weverything, a huge number of warnings can be reported for included
files. As processing that many diagnostics comes with a performance
impact and not all clients are interested in those diagnostics, add a
flag to skip them.

Differential Revision: https://reviews.llvm.org/D48116

llvm-svn: 363067

1 files changed, 6 insertions, 2 deletions

diff --git a/clang/tools/libclang/Indexing.cpp b/clang/tools/libclang/Indexing.cpp
index ad3dc70ea3d..63bae0717c4 100644
--- a/clang/tools/libclang/Indexing.cpp
+++ b/clang/tools/libclang/Indexing.cpp
@@ -443,10 +443,14 @@ static CXErrorCode clang_indexSourceFile_Impl(
   if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing))
     setThreadBackgroundPriority();
 
-  bool CaptureDiagnostics = !Logger::isLoggingEnabled();
+  CaptureDiagsKind CaptureDiagnostics = CaptureDiagsKind::All;
+  if (TU_options & CXTranslationUnit_IgnoreNonErrorsFromIncludedFiles)
+    CaptureDiagnostics = CaptureDiagsKind::AllWithoutNonErrorsFromIncludes;
+  if (Logger::isLoggingEnabled())
+    CaptureDiagnostics = CaptureDiagsKind::None;
 
   CaptureDiagnosticConsumer *CaptureDiag = nullptr;
-  if (CaptureDiagnostics)
+  if (CaptureDiagnostics != CaptureDiagsKind::None)
     CaptureDiag = new CaptureDiagnosticConsumer();
 
   // Configure the diagnostics.