1 files changed, 30 insertions, 1 deletions
diff --git a/googletest/include/gtest/gtest-printers.h b/googletest/include/gtest/gtest-printers.h
index 36f4042a..57eb5ae7 100644
--- a/googletest/include/gtest/gtest-printers.h
+++ b/googletest/include/gtest/gtest-printers.h
@@ -29,7 +29,7 @@
 //
 // Author: wan@google.com (Zhanyong Wan)
 
-// Google Test - The Google C++ Testing Framework
+// Google Test - The Google C++ Testing and Mocking Framework
 //
 // This file implements a universal value printer that can print a
 // value of any type T:
@@ -96,6 +96,8 @@
 // being defined as many user-defined container types don't have
 // value_type.
 
+// GOOGLETEST_CM0001 DO NOT DELETE
+
 #ifndef GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
 #define GTEST_INCLUDE_GTEST_GTEST_PRINTERS_H_
 
@@ -114,6 +116,7 @@
 #if GTEST_HAS_ABSL
 #include "absl/strings/string_view.h"
 #include "absl/types/optional.h"
+#include "absl/types/variant.h"
 #endif  // GTEST_HAS_ABSL
 
 namespace testing {
@@ -636,6 +639,10 @@ inline void PrintTo(absl::string_view sp, ::std::ostream* os) {
 }
 #endif  // GTEST_HAS_ABSL
 
+#if GTEST_LANG_CXX11
+inline void PrintTo(std::nullptr_t, ::std::ostream* os) { *os << "(nullptr)"; }
+#endif  // GTEST_LANG_CXX11
+
 #if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
 // Helper function for printing a tuple.  T must be instantiated with
 // a tuple type.
@@ -783,6 +790,28 @@ class UniversalPrinter<::absl::optional<T>> {
   }
 };
 
+// Printer for absl::variant
+
+template <typename... T>
+class UniversalPrinter<::absl::variant<T...>> {
+ public:
+  static void Print(const ::absl::variant<T...>& value, ::std::ostream* os) {
+    *os << '(';
+    absl::visit(Visitor{os}, value);
+    *os << ')';
+  }
+
+ private:
+  struct Visitor {
+    template <typename U>
+    void operator()(const U& u) const {
+      *os << "'" << GetTypeName<U>() << "' with value ";
+      UniversalPrint(u, os);
+    }
+    ::std::ostream* os;
+  };
+};
+
 #endif  // GTEST_HAS_ABSL
 
 // UniversalPrintArray(begin, len, os) prints an array of 'len'