EagerParseLazyField for const Message&

PiperOrigin-RevId: 611681298

src/google/protobuf/extension_set.h

@@ -565,6 +565,8 @@ class PROTOBUF_EXPORT ExtensionSet {
     virtual LazyMessageExtension* New(Arena* arena) const = 0;
     virtual const MessageLite& GetMessage(const MessageLite& prototype,
                                           Arena* arena) const = 0;
+    virtual const MessageLite& GetMessageIgnoreUnparsed(
+        const MessageLite& prototype, Arena* arena) const = 0;
     virtual MessageLite* MutableMessage(const MessageLite& prototype,
                                         Arena* arena) = 0;
     virtual void SetAllocatedMessage(MessageLite* message, Arena* arena) = 0;

src/google/protobuf/internal_message_util.cc

@@ -7,11 +7,15 @@
 
 #include "google/protobuf/internal_message_util.h"
 
+#include <queue>
 #include <vector>
 
 #include "google/protobuf/descriptor.h"
 #include "google/protobuf/map_field.h"
 #include "google/protobuf/message.h"
+#include "google/protobuf/port.h"
+#include "google/protobuf/reflection_visit_fields.h"
+
 
 namespace google {
 namespace protobuf {

src/google/protobuf/internal_message_util_unittest.cc

@@ -17,6 +17,8 @@
 #include "absl/strings/string_view.h"
 #include "google/protobuf/map_unittest.pb.h"
 #include "google/protobuf/unittest.pb.h"
+#include "google/protobuf/unittest_mset.pb.h"
+
 
 namespace google {
 namespace protobuf {

src/google/protobuf/reflection_visit_field_info.h

@@ -210,6 +210,12 @@ struct DynamicExtensionInfoHelper {
     return DownCast<const Message&>(
         ext.lazymessage_value->GetMessage(prototype, arena));
   }
+  static const Message& GetLazyMessageIgnoreUnparsed(const Extension& ext,
+                                                     const Message& prototype,
+                                                     Arena* arena) {
+    return DownCast<const Message&>(
+        ext.lazymessage_value->GetMessageIgnoreUnparsed(prototype, arena));
+  }
   static Message& MutableLazyMessage(Extension& ext, const Message& prototype,
                                      Arena* arena) {
     return DownCast<Message&>(
@@ -658,6 +664,10 @@ struct LazyMessageDynamicExtensionInfo
   const Message& Get() const {
     return DynamicExtensionInfoHelper::GetLazyMessage(ext, prototype, arena);
   }
+  const Message& GetIgnoreUnparsed() const {
+    return DynamicExtensionInfoHelper::GetLazyMessageIgnoreUnparsed(
+        ext, prototype, arena);
+  }
   Message& Mutable() {
     return DynamicExtensionInfoHelper::MutableLazyMessage(ext, prototype,
                                                           arena);

src/google/protobuf/reflection_visit_fields.h

@@ -296,7 +296,6 @@ void ReflectionVisit::VisitFields(MessageT& message, CallbackFn&& func,
   auto& set = ExtensionSet(reflection, message);
   auto* extendee = reflection->descriptor_;
   auto* pool = reflection->descriptor_pool_;
-  auto* factory = reflection->message_factory_;
   auto* arena = message.GetArena();
 
   set.ForEach([&](int number, auto& ext) {