[libclang] When indexing an AST file, only deserialize the preprocessing record

entities of the current primary module.

llvm-svn: 165023

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index b5e579566af..6bf6f94fbba 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -3381,6 +3381,16 @@ ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) {
   return std::make_pair(M, LocalIndex);
 }
 
+std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator>
+ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const {
+  if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord())
+    return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID,
+                                             Mod.NumPreprocessedEntities);
+
+  return std::make_pair(PreprocessingRecord::iterator(),
+                        PreprocessingRecord::iterator());
+}
+
 PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) {
   PreprocessedEntityID PPID = Index+1;
   std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);