Add JsonParseOptions to ignore unknown fields

- add JsonParseOptions for JsonToBinaryString allow unknown fields
- rename current JsonOptions to JsonPrintOptions

1 files changed, 6 insertions, 1 deletions

diff --git a/src/google/protobuf/util/internal/protostream_objectwriter.h b/src/google/protobuf/util/internal/protostream_objectwriter.h
index e1162d43..8043bb3b 100644
--- a/src/google/protobuf/util/internal/protostream_objectwriter.h
+++ b/src/google/protobuf/util/internal/protostream_objectwriter.h
@@ -83,7 +83,12 @@ class LIBPROTOBUF_EXPORT ProtoStreamObjectWriter : public ProtoWriter {
     // preserve integer precision.
     bool struct_integers_as_strings;
 
-    Options() : struct_integers_as_strings(false) {}
+    // Not treat unknown fields as an error. If there is an unknown fields,
+    // just ignore it and continue to process the rest.
+    bool ignore_unknown_fields;
+
+    Options()
+        : struct_integers_as_strings(false), ignore_unknown_fields(false) {}
 
     // Default instance of Options with all options set to defaults.
     static const Options& Defaults() {