Index: third_party/protobuf/src/google/protobuf/proto_cast.h |
diff --git a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_options.h b/third_party/protobuf/src/google/protobuf/proto_cast.h |
similarity index 67% |
copy from third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_options.h |
copy to third_party/protobuf/src/google/protobuf/proto_cast.h |
index 787706629bd10fc72eb7811d9498f19dd0524d11..e25c219ffece24b132fa9f9f6280186efba50cf2 100644 |
--- a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_options.h |
+++ b/third_party/protobuf/src/google/protobuf/proto_cast.h |
@@ -1,6 +1,6 @@ |
// Protocol Buffers - Google's data interchange format |
// Copyright 2008 Google Inc. All rights reserved. |
-// http://code.google.com/p/protobuf/ |
+// https://developers.google.com/protocol-buffers/ |
// |
// Redistribution and use in source and binary forms, with or without |
// modification, are permitted provided that the following conditions are |
@@ -28,31 +28,31 @@ |
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
-// Author: rennie@google.com (Jeffrey Rennie) |
- |
-#ifndef GOOGLE_PROTOBUF_COMPILER_CPP_OPTIONS_H__ |
-#define GOOGLE_PROTOBUF_COMPILER_CPP_OPTIONS_H__ |
+#ifndef GOOGLE_PROTOBUF_UTIL_PROTO_CAST_H__ |
+#define GOOGLE_PROTOBUF_UTIL_PROTO_CAST_H__ |
#include <string> |
#include <google/protobuf/stubs/common.h> |
-namespace google { |
-namespace protobuf { |
-namespace compiler { |
-namespace cpp { |
- |
-// Generator options: |
-struct Options { |
- Options() : safe_boundary_check(false) { |
- } |
- string dllexport_decl; |
- bool safe_boundary_check; |
-}; |
-} // namespace cpp |
-} // namespace compiler |
-} // namespace protobuf |
+// proto_cast<> is used to simulate over-the-wire conversion of one |
+// proto message into another. This is primarily useful for unit tests |
+// which validate the version-compatibility semantics of protobufs. |
+// Usage is similar to C++-style typecasts: |
+// |
+// OldMessage old_message = /*...*/; |
+// NewMessage new_message = proto_cast<NewMessage>(old_message); |
+namespace google { |
+template<typename NewProto, |
+ typename OldProto> |
+NewProto proto_cast(const OldProto& old_proto) { |
+ string wire_format; |
+ GOOGLE_CHECK(old_proto.SerializeToString(&wire_format)); |
+ NewProto new_proto; |
+ GOOGLE_CHECK(new_proto.ParseFromString(wire_format)); |
+ return new_proto; |
+} |
} // namespace google |
-#endif // GOOGLE_PROTOBUF_COMPILER_CPP_OPTIONS_H__ |
+#endif // GOOGLE_PROTOBUF_UTIL_PROTO_CAST_H__ |