diff --git a/clang/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp
index 8d380ed1b93dec83dc9fbfc2f9b3d8a8c56983a3..0e269201a2ef84b56698afd3ede3f2f219c28141 100644
--- a/clang/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp
@@ -20,9 +20,16 @@
 #include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
 #include <utility>
+#include <iostream>
+
+#include "Yaml.h"
+#include "llvm/Support/YAMLTraits.h"
 
 using namespace clang;
 using namespace ento;
+using llvm::yaml::MappingTraits;
+using llvm::yaml::IO;
+using llvm::yaml::Input;
 
 namespace {
 typedef SmallVector<SymbolRef, 2> SymbolVector;
@@ -82,8 +89,25 @@ public:
                                     PointerEscapeKind Kind) const;
 };
 
+struct lhjPattern {
+  std::string type;
+  std::vector<std::string> list;
+};
 } // end anonymous namespace
 
+namespace llvm {
+namespace yaml {
+
+template <> struct MappingTraits<lhjPattern> {
+  static void mapping(IO &io, lhjPattern &info) {
+    io.mapRequired("type", info.type);
+    io.mapOptional("value", info.list);
+  }
+};
+
+}
+}
+
 /// The state of the checker is a map from tracked stream symbols to their
 /// state. Let's store it in the ProgramState.
 REGISTER_MAP_WITH_PROGRAMSTATE(StreamMap, SymbolRef, StreamState)
@@ -135,6 +159,20 @@ void SimpleStreamChecker::checkPostCall(const CallEvent &Call,
 
 void SimpleStreamChecker::checkPreCall(const CallEvent &Call,
                                        CheckerContext &C) const {
+  /*lhj demo*/
+  std::vector<lhjPattern> obj;
+  CheckerManager *Mgr = C.getAnalysisManager().getCheckerManager();
+  std::string Option{"Config"};
+  StringRef ConfigFile =
+      Mgr->getAnalyzerOptions().getCheckerStringOption(this, Option);
+  llvm::Optional<lhjPattern> Config =
+      getConfiguration<lhjPattern>(*Mgr, this, Option, ConfigFile);
+  for (lhjPattern &lp : obj) {
+    std::cout << "type=" << lp.type;
+  }
+
+  /*lhj demo end*/
+
   if (!Call.isGlobalCFunction())
     return;