From f8304d762e0ed119d3d1c72deb1976dc80029db5 Mon Sep 17 00:00:00 2001
From: Abseil Team <absl-team@google.com>
Date: Tue, 5 Jan 2021 12:21:27 -0500
Subject: Googletest export

Add support for printing incomplete types in the universal printer.

PiperOrigin-RevId: 350154637
---
 googletest/include/gtest/gtest-printers.h | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

(limited to 'googletest/include/gtest/gtest-printers.h')

diff --git a/googletest/include/gtest/gtest-printers.h b/googletest/include/gtest/gtest-printers.h
index 463f0aff..d3292247 100644
--- a/googletest/include/gtest/gtest-printers.h
+++ b/googletest/include/gtest/gtest-printers.h
@@ -261,16 +261,23 @@ struct ConvertibleToStringViewPrinter {
 GTEST_API_ void PrintBytesInObjectTo(const unsigned char* obj_bytes,
                                      size_t count,
                                      ::std::ostream* os);
-struct FallbackPrinter {
-  template <typename T>
+struct RawBytesPrinter {
+  // SFINAE on `sizeof` to make sure we have a complete type.
+  template <typename T, size_t = sizeof(T)>
   static void PrintValue(const T& value, ::std::ostream* os) {
     PrintBytesInObjectTo(
-        static_cast<const unsigned char*>(
-            reinterpret_cast<const void*>(std::addressof(value))),
+        reinterpret_cast<const unsigned char*>(std::addressof(value)),
         sizeof(value), os);
   }
 };
 
+struct FallbackPrinter {
+  template <typename T>
+  static void PrintValue(const T&, ::std::ostream* os) {
+    *os << "(incomplete type)";
+  }
+};
+
 // Try every printer in order and return the first one that works.
 template <typename T, typename E, typename Printer, typename... Printers>
 struct FindFirstPrinter : FindFirstPrinter<T, E, Printers...> {};
@@ -297,7 +304,7 @@ void PrintWithFallback(const T& value, ::std::ostream* os) {
       T, void, ContainerPrinter, FunctionPointerPrinter, PointerPrinter,
       internal_stream_operator_without_lexical_name_lookup::StreamPrinter,
       ProtobufPrinter, ConvertibleToIntegerPrinter,
-      ConvertibleToStringViewPrinter, FallbackPrinter>::type;
+      ConvertibleToStringViewPrinter, RawBytesPrinter, FallbackPrinter>::type;
   Printer::PrintValue(value, os);
 }
 
-- 
cgit v1.2.1