Generated code for previous commit.

6 files changed, 69 insertions, 368 deletions

diff --git a/csharp/src/Google.Protobuf.Test/TestProtos/MapUnittestProto3.cs b/csharp/src/Google.Protobuf.Test/TestProtos/MapUnittestProto3.cs
index 4eeb7423..7da82bf0 100644
--- a/csharp/src/Google.Protobuf.Test/TestProtos/MapUnittestProto3.cs
+++ b/csharp/src/Google.Protobuf.Test/TestProtos/MapUnittestProto3.cs
@@ -144,10 +144,18 @@ namespace Google.Protobuf.TestProtos {
             "dHJ5LkVudHJ5RW50cnkaLAoKRW50cnlFbnRyeRILCgNrZXkYASABKAUSDQoF", 
             "dmFsdWUYAiABKAU6AjgBKj8KB01hcEVudW0SEAoMTUFQX0VOVU1fRk9PEAAS", 
             "EAoMTUFQX0VOVU1fQkFSEAESEAoMTUFQX0VOVU1fQkFaEAJCIPgBAaoCGkdv", 
-          "b2dsZS5Qcm90b2J1Zi5UZXN0UHJvdG9zYgZwcm90bzM="));
+            "b2dsZS5Qcm90b2J1Zi5UZXN0UHJvdG9zYgZwcm90bzM="));
       descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
           new pbr::FileDescriptor[] { global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor, },
-          new global::System.Type[] { typeof(global::Google.Protobuf.TestProtos.TestMap), null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, typeof(global::Google.Protobuf.TestProtos.TestMapSubmessage), typeof(global::Google.Protobuf.TestProtos.TestMessageMap), null, typeof(global::Google.Protobuf.TestProtos.TestSameTypeMap), null, null, typeof(global::Google.Protobuf.TestProtos.TestArenaMap), null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, typeof(global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType), null, typeof(global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType.Types.Type), typeof(global::Google.Protobuf.TestProtos.MessageContainingMapCalledEntry), null, typeof(global::Google.Protobuf.TestProtos.MapEnum), });
+          new pbr::GeneratedCodeInfo(new[] {typeof(global::Google.Protobuf.TestProtos.MapEnum), }, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestMap), new[]{ "MapInt32Int32", "MapInt64Int64", "MapUint32Uint32", "MapUint64Uint64", "MapSint32Sint32", "MapSint64Sint64", "MapFixed32Fixed32", "MapFixed64Fixed64", "MapSfixed32Sfixed32", "MapSfixed64Sfixed64", "MapInt32Float", "MapInt32Double", "MapBoolBool", "MapStringString", "MapInt32Bytes", "MapInt32Enum", "MapInt32ForeignMessage" }, null, null, new pbr::GeneratedCodeInfo[] { null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, }),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestMapSubmessage), new[]{ "TestMap" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestMessageMap), new[]{ "MapInt32Message" }, null, null, new pbr::GeneratedCodeInfo[] { null, }),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestSameTypeMap), new[]{ "Map1", "Map2" }, null, null, new pbr::GeneratedCodeInfo[] { null, null, }),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestArenaMap), new[]{ "MapInt32Int32", "MapInt64Int64", "MapUint32Uint32", "MapUint64Uint64", "MapSint32Sint32", "MapSint64Sint64", "MapFixed32Fixed32", "MapFixed64Fixed64", "MapSfixed32Sfixed32", "MapSfixed64Sfixed64", "MapInt32Float", "MapInt32Double", "MapBoolBool", "MapInt32Enum", "MapInt32ForeignMessage" }, null, null, new pbr::GeneratedCodeInfo[] { null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, }),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType), new[]{ "Type" }, null, new[]{ typeof(global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType.Types.Type) }, new pbr::GeneratedCodeInfo[] { null, }),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.MessageContainingMapCalledEntry), new[]{ "Entry" }, null, null, new pbr::GeneratedCodeInfo[] { null, })
+          }));
     }
     #endregion
 
@@ -167,8 +175,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestMap> _parser = new pb::MessageParser<TestMap>(() => new TestMap());
     public static pb::MessageParser<TestMap> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "map_bool_bool", "map_fixed32_fixed32", "map_fixed64_fixed64", "map_int32_bytes", "map_int32_double", "map_int32_enum", "map_int32_float", "map_int32_foreign_message", "map_int32_int32", "map_int64_int64", "map_sfixed32_sfixed32", "map_sfixed64_sfixed64", "map_sint32_sint32", "map_sint64_sint64", "map_string_string", "map_uint32_uint32", "map_uint64_uint64" };
-    private static readonly uint[] _fieldTags = new uint[] { 106, 58, 66, 122, 98, 130, 90, 138, 10, 18, 74, 82, 42, 50, 114, 26, 34 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[0]; }
     }
@@ -238,7 +244,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_mapInt32Int32_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForInt32(16), 10);
     private readonly pbc::MapField<int, int> mapInt32Int32_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(1, "map_int32_int32")]
     public pbc::MapField<int, int> MapInt32Int32 {
       get { return mapInt32Int32_; }
     }
@@ -247,7 +252,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<long, long>.Codec _map_mapInt64Int64_codec
         = new pbc::MapField<long, long>.Codec(pb::FieldCodec.ForInt64(8), pb::FieldCodec.ForInt64(16), 18);
     private readonly pbc::MapField<long, long> mapInt64Int64_ = new pbc::MapField<long, long>();
-    [pbr::ProtobufField(2, "map_int64_int64")]
     public pbc::MapField<long, long> MapInt64Int64 {
       get { return mapInt64Int64_; }
     }
@@ -256,7 +260,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<uint, uint>.Codec _map_mapUint32Uint32_codec
         = new pbc::MapField<uint, uint>.Codec(pb::FieldCodec.ForUInt32(8), pb::FieldCodec.ForUInt32(16), 26);
     private readonly pbc::MapField<uint, uint> mapUint32Uint32_ = new pbc::MapField<uint, uint>();
-    [pbr::ProtobufField(3, "map_uint32_uint32")]
     public pbc::MapField<uint, uint> MapUint32Uint32 {
       get { return mapUint32Uint32_; }
     }
@@ -265,7 +268,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<ulong, ulong>.Codec _map_mapUint64Uint64_codec
         = new pbc::MapField<ulong, ulong>.Codec(pb::FieldCodec.ForUInt64(8), pb::FieldCodec.ForUInt64(16), 34);
     private readonly pbc::MapField<ulong, ulong> mapUint64Uint64_ = new pbc::MapField<ulong, ulong>();
-    [pbr::ProtobufField(4, "map_uint64_uint64")]
     public pbc::MapField<ulong, ulong> MapUint64Uint64 {
       get { return mapUint64Uint64_; }
     }
@@ -274,7 +276,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_mapSint32Sint32_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForSInt32(8), pb::FieldCodec.ForSInt32(16), 42);
     private readonly pbc::MapField<int, int> mapSint32Sint32_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(5, "map_sint32_sint32")]
     public pbc::MapField<int, int> MapSint32Sint32 {
       get { return mapSint32Sint32_; }
     }
@@ -283,7 +284,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<long, long>.Codec _map_mapSint64Sint64_codec
         = new pbc::MapField<long, long>.Codec(pb::FieldCodec.ForSInt64(8), pb::FieldCodec.ForSInt64(16), 50);
     private readonly pbc::MapField<long, long> mapSint64Sint64_ = new pbc::MapField<long, long>();
-    [pbr::ProtobufField(6, "map_sint64_sint64")]
     public pbc::MapField<long, long> MapSint64Sint64 {
       get { return mapSint64Sint64_; }
     }
@@ -292,7 +292,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<uint, uint>.Codec _map_mapFixed32Fixed32_codec
         = new pbc::MapField<uint, uint>.Codec(pb::FieldCodec.ForFixed32(13), pb::FieldCodec.ForFixed32(21), 58);
     private readonly pbc::MapField<uint, uint> mapFixed32Fixed32_ = new pbc::MapField<uint, uint>();
-    [pbr::ProtobufField(7, "map_fixed32_fixed32")]
     public pbc::MapField<uint, uint> MapFixed32Fixed32 {
       get { return mapFixed32Fixed32_; }
     }
@@ -301,7 +300,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<ulong, ulong>.Codec _map_mapFixed64Fixed64_codec
         = new pbc::MapField<ulong, ulong>.Codec(pb::FieldCodec.ForFixed64(9), pb::FieldCodec.ForFixed64(17), 66);
     private readonly pbc::MapField<ulong, ulong> mapFixed64Fixed64_ = new pbc::MapField<ulong, ulong>();
-    [pbr::ProtobufField(8, "map_fixed64_fixed64")]
     public pbc::MapField<ulong, ulong> MapFixed64Fixed64 {
       get { return mapFixed64Fixed64_; }
     }
@@ -310,7 +308,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_mapSfixed32Sfixed32_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForSFixed32(13), pb::FieldCodec.ForSFixed32(21), 74);
     private readonly pbc::MapField<int, int> mapSfixed32Sfixed32_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(9, "map_sfixed32_sfixed32")]
     public pbc::MapField<int, int> MapSfixed32Sfixed32 {
       get { return mapSfixed32Sfixed32_; }
     }
@@ -319,7 +316,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<long, long>.Codec _map_mapSfixed64Sfixed64_codec
         = new pbc::MapField<long, long>.Codec(pb::FieldCodec.ForSFixed64(9), pb::FieldCodec.ForSFixed64(17), 82);
     private readonly pbc::MapField<long, long> mapSfixed64Sfixed64_ = new pbc::MapField<long, long>();
-    [pbr::ProtobufField(10, "map_sfixed64_sfixed64")]
     public pbc::MapField<long, long> MapSfixed64Sfixed64 {
       get { return mapSfixed64Sfixed64_; }
     }
@@ -328,7 +324,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, float>.Codec _map_mapInt32Float_codec
         = new pbc::MapField<int, float>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForFloat(21), 90);
     private readonly pbc::MapField<int, float> mapInt32Float_ = new pbc::MapField<int, float>();
-    [pbr::ProtobufField(11, "map_int32_float")]
     public pbc::MapField<int, float> MapInt32Float {
       get { return mapInt32Float_; }
     }
@@ -337,7 +332,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, double>.Codec _map_mapInt32Double_codec
         = new pbc::MapField<int, double>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForDouble(17), 98);
     private readonly pbc::MapField<int, double> mapInt32Double_ = new pbc::MapField<int, double>();
-    [pbr::ProtobufField(12, "map_int32_double")]
     public pbc::MapField<int, double> MapInt32Double {
       get { return mapInt32Double_; }
     }
@@ -346,7 +340,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<bool, bool>.Codec _map_mapBoolBool_codec
         = new pbc::MapField<bool, bool>.Codec(pb::FieldCodec.ForBool(8), pb::FieldCodec.ForBool(16), 106);
     private readonly pbc::MapField<bool, bool> mapBoolBool_ = new pbc::MapField<bool, bool>();
-    [pbr::ProtobufField(13, "map_bool_bool")]
     public pbc::MapField<bool, bool> MapBoolBool {
       get { return mapBoolBool_; }
     }
@@ -355,7 +348,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<string, string>.Codec _map_mapStringString_codec
         = new pbc::MapField<string, string>.Codec(pb::FieldCodec.ForString(10), pb::FieldCodec.ForString(18), 114);
     private readonly pbc::MapField<string, string> mapStringString_ = new pbc::MapField<string, string>();
-    [pbr::ProtobufField(14, "map_string_string")]
     public pbc::MapField<string, string> MapStringString {
       get { return mapStringString_; }
     }
@@ -364,7 +356,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, pb::ByteString>.Codec _map_mapInt32Bytes_codec
         = new pbc::MapField<int, pb::ByteString>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForBytes(18), 122);
     private readonly pbc::MapField<int, pb::ByteString> mapInt32Bytes_ = new pbc::MapField<int, pb::ByteString>();
-    [pbr::ProtobufField(15, "map_int32_bytes")]
     public pbc::MapField<int, pb::ByteString> MapInt32Bytes {
       get { return mapInt32Bytes_; }
     }
@@ -373,7 +364,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum>.Codec _map_mapInt32Enum_codec
         = new pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForEnum(16, x => (int) x, x => (global::Google.Protobuf.TestProtos.MapEnum) x), 130);
     private readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum> mapInt32Enum_ = new pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum>();
-    [pbr::ProtobufField(16, "map_int32_enum")]
     public pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum> MapInt32Enum {
       get { return mapInt32Enum_; }
     }
@@ -382,7 +372,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage>.Codec _map_mapInt32ForeignMessage_codec
         = new pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.TestProtos.ForeignMessage.Parser), 138);
     private readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage> mapInt32ForeignMessage_ = new pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage>();
-    [pbr::ProtobufField(17, "map_int32_foreign_message")]
     public pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage> MapInt32ForeignMessage {
       get { return mapInt32ForeignMessage_; }
     }
@@ -599,8 +588,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestMapSubmessage> _parser = new pb::MessageParser<TestMapSubmessage>(() => new TestMapSubmessage());
     public static pb::MessageParser<TestMapSubmessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "test_map" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[1]; }
     }
@@ -636,7 +623,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int TestMapFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.TestMap testMap_;
-    [pbr::ProtobufField(1, "test_map")]
     public global::Google.Protobuf.TestProtos.TestMap TestMap {
       get { return testMap_; }
       set {
@@ -726,8 +712,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestMessageMap> _parser = new pb::MessageParser<TestMessageMap>(() => new TestMessageMap());
     public static pb::MessageParser<TestMessageMap> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "map_int32_message" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[2]; }
     }
@@ -765,7 +749,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.TestAllTypes>.Codec _map_mapInt32Message_codec
         = new pbc::MapField<int, global::Google.Protobuf.TestProtos.TestAllTypes>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.TestProtos.TestAllTypes.Parser), 10);
     private readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.TestAllTypes> mapInt32Message_ = new pbc::MapField<int, global::Google.Protobuf.TestProtos.TestAllTypes>();
-    [pbr::ProtobufField(1, "map_int32_message")]
     public pbc::MapField<int, global::Google.Protobuf.TestProtos.TestAllTypes> MapInt32Message {
       get { return mapInt32Message_; }
     }
@@ -838,8 +821,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestSameTypeMap> _parser = new pb::MessageParser<TestSameTypeMap>(() => new TestSameTypeMap());
     public static pb::MessageParser<TestSameTypeMap> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "map1", "map2" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 18 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[3]; }
     }
@@ -879,7 +860,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_map1_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForInt32(16), 10);
     private readonly pbc::MapField<int, int> map1_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(1, "map1")]
     public pbc::MapField<int, int> Map1 {
       get { return map1_; }
     }
@@ -888,7 +868,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_map2_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForInt32(16), 18);
     private readonly pbc::MapField<int, int> map2_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(2, "map2")]
     public pbc::MapField<int, int> Map2 {
       get { return map2_; }
     }
@@ -970,8 +949,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestArenaMap> _parser = new pb::MessageParser<TestArenaMap>(() => new TestArenaMap());
     public static pb::MessageParser<TestArenaMap> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "map_bool_bool", "map_fixed32_fixed32", "map_fixed64_fixed64", "map_int32_double", "map_int32_enum", "map_int32_float", "map_int32_foreign_message", "map_int32_int32", "map_int64_int64", "map_sfixed32_sfixed32", "map_sfixed64_sfixed64", "map_sint32_sint32", "map_sint64_sint64", "map_uint32_uint32", "map_uint64_uint64" };
-    private static readonly uint[] _fieldTags = new uint[] { 106, 58, 66, 98, 114, 90, 122, 10, 18, 74, 82, 42, 50, 26, 34 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[4]; }
     }
@@ -1037,7 +1014,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_mapInt32Int32_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForInt32(16), 10);
     private readonly pbc::MapField<int, int> mapInt32Int32_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(1, "map_int32_int32")]
     public pbc::MapField<int, int> MapInt32Int32 {
       get { return mapInt32Int32_; }
     }
@@ -1046,7 +1022,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<long, long>.Codec _map_mapInt64Int64_codec
         = new pbc::MapField<long, long>.Codec(pb::FieldCodec.ForInt64(8), pb::FieldCodec.ForInt64(16), 18);
     private readonly pbc::MapField<long, long> mapInt64Int64_ = new pbc::MapField<long, long>();
-    [pbr::ProtobufField(2, "map_int64_int64")]
     public pbc::MapField<long, long> MapInt64Int64 {
       get { return mapInt64Int64_; }
     }
@@ -1055,7 +1030,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<uint, uint>.Codec _map_mapUint32Uint32_codec
         = new pbc::MapField<uint, uint>.Codec(pb::FieldCodec.ForUInt32(8), pb::FieldCodec.ForUInt32(16), 26);
     private readonly pbc::MapField<uint, uint> mapUint32Uint32_ = new pbc::MapField<uint, uint>();
-    [pbr::ProtobufField(3, "map_uint32_uint32")]
     public pbc::MapField<uint, uint> MapUint32Uint32 {
       get { return mapUint32Uint32_; }
     }
@@ -1064,7 +1038,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<ulong, ulong>.Codec _map_mapUint64Uint64_codec
         = new pbc::MapField<ulong, ulong>.Codec(pb::FieldCodec.ForUInt64(8), pb::FieldCodec.ForUInt64(16), 34);
     private readonly pbc::MapField<ulong, ulong> mapUint64Uint64_ = new pbc::MapField<ulong, ulong>();
-    [pbr::ProtobufField(4, "map_uint64_uint64")]
     public pbc::MapField<ulong, ulong> MapUint64Uint64 {
       get { return mapUint64Uint64_; }
     }
@@ -1073,7 +1046,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_mapSint32Sint32_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForSInt32(8), pb::FieldCodec.ForSInt32(16), 42);
     private readonly pbc::MapField<int, int> mapSint32Sint32_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(5, "map_sint32_sint32")]
     public pbc::MapField<int, int> MapSint32Sint32 {
       get { return mapSint32Sint32_; }
     }
@@ -1082,7 +1054,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<long, long>.Codec _map_mapSint64Sint64_codec
         = new pbc::MapField<long, long>.Codec(pb::FieldCodec.ForSInt64(8), pb::FieldCodec.ForSInt64(16), 50);
     private readonly pbc::MapField<long, long> mapSint64Sint64_ = new pbc::MapField<long, long>();
-    [pbr::ProtobufField(6, "map_sint64_sint64")]
     public pbc::MapField<long, long> MapSint64Sint64 {
       get { return mapSint64Sint64_; }
     }
@@ -1091,7 +1062,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<uint, uint>.Codec _map_mapFixed32Fixed32_codec
         = new pbc::MapField<uint, uint>.Codec(pb::FieldCodec.ForFixed32(13), pb::FieldCodec.ForFixed32(21), 58);
     private readonly pbc::MapField<uint, uint> mapFixed32Fixed32_ = new pbc::MapField<uint, uint>();
-    [pbr::ProtobufField(7, "map_fixed32_fixed32")]
     public pbc::MapField<uint, uint> MapFixed32Fixed32 {
       get { return mapFixed32Fixed32_; }
     }
@@ -1100,7 +1070,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<ulong, ulong>.Codec _map_mapFixed64Fixed64_codec
         = new pbc::MapField<ulong, ulong>.Codec(pb::FieldCodec.ForFixed64(9), pb::FieldCodec.ForFixed64(17), 66);
     private readonly pbc::MapField<ulong, ulong> mapFixed64Fixed64_ = new pbc::MapField<ulong, ulong>();
-    [pbr::ProtobufField(8, "map_fixed64_fixed64")]
     public pbc::MapField<ulong, ulong> MapFixed64Fixed64 {
       get { return mapFixed64Fixed64_; }
     }
@@ -1109,7 +1078,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_mapSfixed32Sfixed32_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForSFixed32(13), pb::FieldCodec.ForSFixed32(21), 74);
     private readonly pbc::MapField<int, int> mapSfixed32Sfixed32_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(9, "map_sfixed32_sfixed32")]
     public pbc::MapField<int, int> MapSfixed32Sfixed32 {
       get { return mapSfixed32Sfixed32_; }
     }
@@ -1118,7 +1086,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<long, long>.Codec _map_mapSfixed64Sfixed64_codec
         = new pbc::MapField<long, long>.Codec(pb::FieldCodec.ForSFixed64(9), pb::FieldCodec.ForSFixed64(17), 82);
     private readonly pbc::MapField<long, long> mapSfixed64Sfixed64_ = new pbc::MapField<long, long>();
-    [pbr::ProtobufField(10, "map_sfixed64_sfixed64")]
     public pbc::MapField<long, long> MapSfixed64Sfixed64 {
       get { return mapSfixed64Sfixed64_; }
     }
@@ -1127,7 +1094,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, float>.Codec _map_mapInt32Float_codec
         = new pbc::MapField<int, float>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForFloat(21), 90);
     private readonly pbc::MapField<int, float> mapInt32Float_ = new pbc::MapField<int, float>();
-    [pbr::ProtobufField(11, "map_int32_float")]
     public pbc::MapField<int, float> MapInt32Float {
       get { return mapInt32Float_; }
     }
@@ -1136,7 +1102,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, double>.Codec _map_mapInt32Double_codec
         = new pbc::MapField<int, double>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForDouble(17), 98);
     private readonly pbc::MapField<int, double> mapInt32Double_ = new pbc::MapField<int, double>();
-    [pbr::ProtobufField(12, "map_int32_double")]
     public pbc::MapField<int, double> MapInt32Double {
       get { return mapInt32Double_; }
     }
@@ -1145,7 +1110,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<bool, bool>.Codec _map_mapBoolBool_codec
         = new pbc::MapField<bool, bool>.Codec(pb::FieldCodec.ForBool(8), pb::FieldCodec.ForBool(16), 106);
     private readonly pbc::MapField<bool, bool> mapBoolBool_ = new pbc::MapField<bool, bool>();
-    [pbr::ProtobufField(13, "map_bool_bool")]
     public pbc::MapField<bool, bool> MapBoolBool {
       get { return mapBoolBool_; }
     }
@@ -1154,7 +1118,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum>.Codec _map_mapInt32Enum_codec
         = new pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForEnum(16, x => (int) x, x => (global::Google.Protobuf.TestProtos.MapEnum) x), 114);
     private readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum> mapInt32Enum_ = new pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum>();
-    [pbr::ProtobufField(14, "map_int32_enum")]
     public pbc::MapField<int, global::Google.Protobuf.TestProtos.MapEnum> MapInt32Enum {
       get { return mapInt32Enum_; }
     }
@@ -1163,7 +1126,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage>.Codec _map_mapInt32ForeignMessage_codec
         = new pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.TestProtos.ForeignMessage.Parser), 122);
     private readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage> mapInt32ForeignMessage_ = new pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage>();
-    [pbr::ProtobufField(15, "map_int32_foreign_message")]
     public pbc::MapField<int, global::Google.Protobuf.TestProtos.ForeignMessage> MapInt32ForeignMessage {
       get { return mapInt32ForeignMessage_; }
     }
@@ -1362,8 +1324,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<MessageContainingEnumCalledType> _parser = new pb::MessageParser<MessageContainingEnumCalledType>(() => new MessageContainingEnumCalledType());
     public static pb::MessageParser<MessageContainingEnumCalledType> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "type" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[5]; }
     }
@@ -1401,7 +1361,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType>.Codec _map_type_codec
         = new pbc::MapField<int, global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType.Parser), 10);
     private readonly pbc::MapField<int, global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType> type_ = new pbc::MapField<int, global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType>();
-    [pbr::ProtobufField(1, "type")]
     public pbc::MapField<int, global::Google.Protobuf.TestProtos.MessageContainingEnumCalledType> Type {
       get { return type_; }
     }
@@ -1484,8 +1443,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<MessageContainingMapCalledEntry> _parser = new pb::MessageParser<MessageContainingMapCalledEntry>(() => new MessageContainingMapCalledEntry());
     public static pb::MessageParser<MessageContainingMapCalledEntry> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "entry" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.MapUnittestProto3.Descriptor.MessageTypes[6]; }
     }
@@ -1523,7 +1480,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int>.Codec _map_entry_codec
         = new pbc::MapField<int, int>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForInt32(16), 10);
     private readonly pbc::MapField<int, int> entry_ = new pbc::MapField<int, int>();
-    [pbr::ProtobufField(1, "entry")]
     public pbc::MapField<int, int> Entry {
       get { return entry_; }
     }
diff --git a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportProto3.cs b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportProto3.cs
index 87bec2af..517225b6 100644
--- a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportProto3.cs
+++ b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportProto3.cs
@@ -28,10 +28,12 @@ namespace Google.Protobuf.TestProtos {
             "VU1fVU5TUEVDSUZJRUQQABIOCgpJTVBPUlRfRk9PEAcSDgoKSU1QT1JUX0JB", 
             "UhAIEg4KCklNUE9SVF9CQVoQCUI8Chhjb20uZ29vZ2xlLnByb3RvYnVmLnRl", 
             "c3RIAfgBAaoCGkdvb2dsZS5Qcm90b2J1Zi5UZXN0UHJvdG9zUABiBnByb3Rv", 
-          "Mw=="));
+            "Mw=="));
       descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
           new pbr::FileDescriptor[] { global::Google.Protobuf.TestProtos.UnittestImportPublicProto3.Descriptor, },
-          new global::System.Type[] { typeof(global::Google.Protobuf.TestProtos.ImportMessage), typeof(global::Google.Protobuf.TestProtos.ImportEnum), });
+          new pbr::GeneratedCodeInfo(new[] {typeof(global::Google.Protobuf.TestProtos.ImportEnum), }, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.ImportMessage), new[]{ "D" }, null, null, null)
+          }));
     }
     #endregion
 
@@ -52,8 +54,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<ImportMessage> _parser = new pb::MessageParser<ImportMessage>(() => new ImportMessage());
     public static pb::MessageParser<ImportMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "d" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestImportProto3.Descriptor.MessageTypes[0]; }
     }
@@ -88,7 +88,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DFieldNumber = 1;
     private int d_;
-    [pbr::ProtobufField(1, "d")]
     public int D {
       get { return d_; }
       set {
diff --git a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportPublicProto3.cs b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportPublicProto3.cs
index a983dfa8..11ec29dd 100644
--- a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportPublicProto3.cs
+++ b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestImportPublicProto3.cs
@@ -24,10 +24,12 @@ namespace Google.Protobuf.TestProtos {
             "CjNnb29nbGUvcHJvdG9idWYvdW5pdHRlc3RfaW1wb3J0X3B1YmxpY19wcm90", 
             "bzMucHJvdG8SGHByb3RvYnVmX3VuaXR0ZXN0X2ltcG9ydCIgChNQdWJsaWNJ", 
             "bXBvcnRNZXNzYWdlEgkKAWUYASABKAVCNwoYY29tLmdvb2dsZS5wcm90b2J1", 
-          "Zi50ZXN0qgIaR29vZ2xlLlByb3RvYnVmLlRlc3RQcm90b3NiBnByb3RvMw=="));
+            "Zi50ZXN0qgIaR29vZ2xlLlByb3RvYnVmLlRlc3RQcm90b3NiBnByb3RvMw=="));
       descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
           new pbr::FileDescriptor[] { },
-          new global::System.Type[] { typeof(global::Google.Protobuf.TestProtos.PublicImportMessage), });
+          new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.PublicImportMessage), new[]{ "E" }, null, null, null)
+          }));
     }
     #endregion
 
@@ -38,8 +40,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<PublicImportMessage> _parser = new pb::MessageParser<PublicImportMessage>(() => new PublicImportMessage());
     public static pb::MessageParser<PublicImportMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "e" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestImportPublicProto3.Descriptor.MessageTypes[0]; }
     }
@@ -74,7 +74,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int EFieldNumber = 1;
     private int e_;
-    [pbr::ProtobufField(1, "e")]
     public int E {
       get { return e_; }
       set {
diff --git a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestIssues.cs b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestIssues.cs
index 9a656f25..07466650 100644
--- a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestIssues.cs
+++ b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestIssues.cs
@@ -38,10 +38,16 @@ namespace UnitTest.Issues.TestProtos {
             "dGl2ZUVudW0SFgoSTkVHQVRJVkVfRU5VTV9aRVJPEAASFgoJRml2ZUJlbG93", 
             "EPv//////////wESFQoITWludXNPbmUQ////////////ASouCg5EZXByZWNh", 
             "dGVkRW51bRITCg9ERVBSRUNBVEVEX1pFUk8QABIHCgNvbmUQAUIfSAGqAhpV", 
-          "bml0VGVzdC5Jc3N1ZXMuVGVzdFByb3Rvc2IGcHJvdG8z"));
+            "bml0VGVzdC5Jc3N1ZXMuVGVzdFByb3Rvc2IGcHJvdG8z"));
       descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
           new pbr::FileDescriptor[] { },
-          new global::System.Type[] { typeof(global::UnitTest.Issues.TestProtos.Issue307), typeof(global::UnitTest.Issues.TestProtos.Issue307.Types.NestedOnce), typeof(global::UnitTest.Issues.TestProtos.Issue307.Types.NestedOnce.Types.NestedTwice), typeof(global::UnitTest.Issues.TestProtos.NegativeEnumMessage), typeof(global::UnitTest.Issues.TestProtos.DeprecatedChild), typeof(global::UnitTest.Issues.TestProtos.DeprecatedFieldsMessage), typeof(global::UnitTest.Issues.TestProtos.ItemField), typeof(global::UnitTest.Issues.TestProtos.NegativeEnum), typeof(global::UnitTest.Issues.TestProtos.DeprecatedEnum), });
+          new pbr::GeneratedCodeInfo(new[] {typeof(global::UnitTest.Issues.TestProtos.NegativeEnum), typeof(global::UnitTest.Issues.TestProtos.DeprecatedEnum), }, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.Issue307), null, null, null, new pbr::GeneratedCodeInfo[] { new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.Issue307.Types.NestedOnce), null, null, null, new pbr::GeneratedCodeInfo[] { new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.Issue307.Types.NestedOnce.Types.NestedTwice), null, null, null, null)})}),
+            new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.NegativeEnumMessage), new[]{ "Value", "Values", "PackedValues" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.DeprecatedChild), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.DeprecatedFieldsMessage), new[]{ "PrimitiveValue", "PrimitiveArray", "MessageValue", "MessageArray", "EnumValue", "EnumArray" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::UnitTest.Issues.TestProtos.ItemField), new[]{ "Item" }, null, null, null)
+          }));
     }
     #endregion
 
@@ -66,8 +72,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::MessageParser<Issue307> _parser = new pb::MessageParser<Issue307>(() => new Issue307());
     public static pb::MessageParser<Issue307> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::UnitTest.Issues.TestProtos.UnittestIssues.Descriptor.MessageTypes[0]; }
     }
@@ -159,8 +163,6 @@ namespace UnitTest.Issues.TestProtos {
         private static readonly pb::MessageParser<NestedOnce> _parser = new pb::MessageParser<NestedOnce>(() => new NestedOnce());
         public static pb::MessageParser<NestedOnce> Parser { get { return _parser; } }
 
-        private static readonly string[] _fieldNames = new string[] {  };
-        private static readonly uint[] _fieldTags = new uint[] {  };
         public static pbr::MessageDescriptor Descriptor {
           get { return global::UnitTest.Issues.TestProtos.Issue307.Descriptor.NestedTypes[0]; }
         }
@@ -252,8 +254,6 @@ namespace UnitTest.Issues.TestProtos {
             private static readonly pb::MessageParser<NestedTwice> _parser = new pb::MessageParser<NestedTwice>(() => new NestedTwice());
             public static pb::MessageParser<NestedTwice> Parser { get { return _parser; } }
 
-            private static readonly string[] _fieldNames = new string[] {  };
-            private static readonly uint[] _fieldTags = new uint[] {  };
             public static pbr::MessageDescriptor Descriptor {
               get { return global::UnitTest.Issues.TestProtos.Issue307.Types.NestedOnce.Descriptor.NestedTypes[0]; }
             }
@@ -354,8 +354,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::MessageParser<NegativeEnumMessage> _parser = new pb::MessageParser<NegativeEnumMessage>(() => new NegativeEnumMessage());
     public static pb::MessageParser<NegativeEnumMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "packed_values", "value", "values" };
-    private static readonly uint[] _fieldTags = new uint[] { 26, 8, 16 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::UnitTest.Issues.TestProtos.UnittestIssues.Descriptor.MessageTypes[1]; }
     }
@@ -394,7 +392,6 @@ namespace UnitTest.Issues.TestProtos {
 
     public const int ValueFieldNumber = 1;
     private global::UnitTest.Issues.TestProtos.NegativeEnum value_ = global::UnitTest.Issues.TestProtos.NegativeEnum.NEGATIVE_ENUM_ZERO;
-    [pbr::ProtobufField(1, "value")]
     public global::UnitTest.Issues.TestProtos.NegativeEnum Value {
       get { return value_; }
       set {
@@ -407,7 +404,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::FieldCodec<global::UnitTest.Issues.TestProtos.NegativeEnum> _repeated_values_codec
         = pb::FieldCodec.ForEnum(16, x => (int) x, x => (global::UnitTest.Issues.TestProtos.NegativeEnum) x);
     private readonly pbc::RepeatedField<global::UnitTest.Issues.TestProtos.NegativeEnum> values_ = new pbc::RepeatedField<global::UnitTest.Issues.TestProtos.NegativeEnum>();
-    [pbr::ProtobufField(2, "values")]
     public pbc::RepeatedField<global::UnitTest.Issues.TestProtos.NegativeEnum> Values {
       get { return values_; }
     }
@@ -416,7 +412,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::FieldCodec<global::UnitTest.Issues.TestProtos.NegativeEnum> _repeated_packedValues_codec
         = pb::FieldCodec.ForEnum(26, x => (int) x, x => (global::UnitTest.Issues.TestProtos.NegativeEnum) x);
     private readonly pbc::RepeatedField<global::UnitTest.Issues.TestProtos.NegativeEnum> packedValues_ = new pbc::RepeatedField<global::UnitTest.Issues.TestProtos.NegativeEnum>();
-    [pbr::ProtobufField(3, "packed_values")]
     public pbc::RepeatedField<global::UnitTest.Issues.TestProtos.NegativeEnum> PackedValues {
       get { return packedValues_; }
     }
@@ -516,8 +511,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::MessageParser<DeprecatedChild> _parser = new pb::MessageParser<DeprecatedChild>(() => new DeprecatedChild());
     public static pb::MessageParser<DeprecatedChild> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::UnitTest.Issues.TestProtos.UnittestIssues.Descriptor.MessageTypes[2]; }
     }
@@ -608,8 +601,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::MessageParser<DeprecatedFieldsMessage> _parser = new pb::MessageParser<DeprecatedFieldsMessage>(() => new DeprecatedFieldsMessage());
     public static pb::MessageParser<DeprecatedFieldsMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "EnumArray", "EnumValue", "MessageArray", "MessageValue", "PrimitiveArray", "PrimitiveValue" };
-    private static readonly uint[] _fieldTags = new uint[] { 50, 40, 34, 26, 18, 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::UnitTest.Issues.TestProtos.UnittestIssues.Descriptor.MessageTypes[3]; }
     }
@@ -654,7 +645,6 @@ namespace UnitTest.Issues.TestProtos {
     public const int PrimitiveValueFieldNumber = 1;
     private int primitiveValue_;
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(1, "PrimitiveValue")]
     public int PrimitiveValue {
       get { return primitiveValue_; }
       set {
@@ -668,7 +658,6 @@ namespace UnitTest.Issues.TestProtos {
         = pb::FieldCodec.ForInt32(18);
     private readonly pbc::RepeatedField<int> primitiveArray_ = new pbc::RepeatedField<int>();
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(2, "PrimitiveArray")]
     public pbc::RepeatedField<int> PrimitiveArray {
       get { return primitiveArray_; }
     }
@@ -676,7 +665,6 @@ namespace UnitTest.Issues.TestProtos {
     public const int MessageValueFieldNumber = 3;
     private global::UnitTest.Issues.TestProtos.DeprecatedChild messageValue_;
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(3, "MessageValue")]
     public global::UnitTest.Issues.TestProtos.DeprecatedChild MessageValue {
       get { return messageValue_; }
       set {
@@ -690,7 +678,6 @@ namespace UnitTest.Issues.TestProtos {
         = pb::FieldCodec.ForMessage(34, global::UnitTest.Issues.TestProtos.DeprecatedChild.Parser);
     private readonly pbc::RepeatedField<global::UnitTest.Issues.TestProtos.DeprecatedChild> messageArray_ = new pbc::RepeatedField<global::UnitTest.Issues.TestProtos.DeprecatedChild>();
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(4, "MessageArray")]
     public pbc::RepeatedField<global::UnitTest.Issues.TestProtos.DeprecatedChild> MessageArray {
       get { return messageArray_; }
     }
@@ -698,7 +685,6 @@ namespace UnitTest.Issues.TestProtos {
     public const int EnumValueFieldNumber = 5;
     private global::UnitTest.Issues.TestProtos.DeprecatedEnum enumValue_ = global::UnitTest.Issues.TestProtos.DeprecatedEnum.DEPRECATED_ZERO;
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(5, "EnumValue")]
     public global::UnitTest.Issues.TestProtos.DeprecatedEnum EnumValue {
       get { return enumValue_; }
       set {
@@ -712,7 +698,6 @@ namespace UnitTest.Issues.TestProtos {
         = pb::FieldCodec.ForEnum(50, x => (int) x, x => (global::UnitTest.Issues.TestProtos.DeprecatedEnum) x);
     private readonly pbc::RepeatedField<global::UnitTest.Issues.TestProtos.DeprecatedEnum> enumArray_ = new pbc::RepeatedField<global::UnitTest.Issues.TestProtos.DeprecatedEnum>();
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(6, "EnumArray")]
     public pbc::RepeatedField<global::UnitTest.Issues.TestProtos.DeprecatedEnum> EnumArray {
       get { return enumArray_; }
     }
@@ -859,8 +844,6 @@ namespace UnitTest.Issues.TestProtos {
     private static readonly pb::MessageParser<ItemField> _parser = new pb::MessageParser<ItemField>(() => new ItemField());
     public static pb::MessageParser<ItemField> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "item" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::UnitTest.Issues.TestProtos.UnittestIssues.Descriptor.MessageTypes[4]; }
     }
@@ -895,7 +878,6 @@ namespace UnitTest.Issues.TestProtos {
 
     public const int ItemFieldNumber = 1;
     private int item_;
-    [pbr::ProtobufField(1, "item")]
     public int Item {
       get { return item_; }
       set {
diff --git a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestProto3.cs b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestProto3.cs
index 55ed08af..01492b29 100644
--- a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestProto3.cs
+++ b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestProto3.cs
@@ -147,10 +147,44 @@ namespace Google.Protobuf.TestProtos {
             "cXVlc3QaHi5wcm90b2J1Zl91bml0dGVzdC5Gb29SZXNwb25zZRJECgNCYXIS", 
             "HS5wcm90b2J1Zl91bml0dGVzdC5CYXJSZXF1ZXN0Gh4ucHJvdG9idWZfdW5p", 
             "dHRlc3QuQmFyUmVzcG9uc2VCOkINVW5pdHRlc3RQcm90b0gBgAEBiAEBkAEB", 
-          "+AEBqgIaR29vZ2xlLlByb3RvYnVmLlRlc3RQcm90b3NiBnByb3RvMw=="));
+            "+AEBqgIaR29vZ2xlLlByb3RvYnVmLlRlc3RQcm90b3NiBnByb3RvMw=="));
       descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
           new pbr::FileDescriptor[] { global::Google.Protobuf.TestProtos.UnittestImportProto3.Descriptor, },
-          new global::System.Type[] { typeof(global::Google.Protobuf.TestProtos.TestAllTypes), typeof(global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage), typeof(global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum), typeof(global::Google.Protobuf.TestProtos.NestedTestAllTypes), typeof(global::Google.Protobuf.TestProtos.TestDeprecatedFields), typeof(global::Google.Protobuf.TestProtos.ForeignMessage), typeof(global::Google.Protobuf.TestProtos.TestReservedFields), typeof(global::Google.Protobuf.TestProtos.TestForeignNested), typeof(global::Google.Protobuf.TestProtos.TestReallyLargeTagNumber), typeof(global::Google.Protobuf.TestProtos.TestRecursiveMessage), typeof(global::Google.Protobuf.TestProtos.TestMutualRecursionA), typeof(global::Google.Protobuf.TestProtos.TestMutualRecursionB), typeof(global::Google.Protobuf.TestProtos.TestCamelCaseFieldNames), typeof(global::Google.Protobuf.TestProtos.TestFieldOrderings), typeof(global::Google.Protobuf.TestProtos.TestFieldOrderings.Types.NestedMessage), typeof(global::Google.Protobuf.TestProtos.SparseEnumMessage), typeof(global::Google.Protobuf.TestProtos.OneString), typeof(global::Google.Protobuf.TestProtos.MoreString), typeof(global::Google.Protobuf.TestProtos.OneBytes), typeof(global::Google.Protobuf.TestProtos.MoreBytes), typeof(global::Google.Protobuf.TestProtos.Int32Message), typeof(global::Google.Protobuf.TestProtos.Uint32Message), typeof(global::Google.Protobuf.TestProtos.Int64Message), typeof(global::Google.Protobuf.TestProtos.Uint64Message), typeof(global::Google.Protobuf.TestProtos.BoolMessage), typeof(global::Google.Protobuf.TestProtos.TestOneof), typeof(global::Google.Protobuf.TestProtos.TestPackedTypes), typeof(global::Google.Protobuf.TestProtos.TestUnpackedTypes), typeof(global::Google.Protobuf.TestProtos.TestRepeatedScalarDifferentTagSizes), typeof(global::Google.Protobuf.TestProtos.TestCommentInjectionMessage), typeof(global::Google.Protobuf.TestProtos.FooRequest), typeof(global::Google.Protobuf.TestProtos.FooResponse), typeof(global::Google.Protobuf.TestProtos.FooClientMessage), typeof(global::Google.Protobuf.TestProtos.FooServerMessage), typeof(global::Google.Protobuf.TestProtos.BarRequest), typeof(global::Google.Protobuf.TestProtos.BarResponse), typeof(global::Google.Protobuf.TestProtos.ForeignEnum), typeof(global::Google.Protobuf.TestProtos.TestEnumWithDupValue), typeof(global::Google.Protobuf.TestProtos.TestSparseEnum), });
+          new pbr::GeneratedCodeInfo(new[] {typeof(global::Google.Protobuf.TestProtos.ForeignEnum), typeof(global::Google.Protobuf.TestProtos.TestEnumWithDupValue), typeof(global::Google.Protobuf.TestProtos.TestSparseEnum), }, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestAllTypes), new[]{ "SingleInt32", "SingleInt64", "SingleUint32", "SingleUint64", "SingleSint32", "SingleSint64", "SingleFixed32", "SingleFixed64", "SingleSfixed32", "SingleSfixed64", "SingleFloat", "SingleDouble", "SingleBool", "SingleString", "SingleBytes", "SingleNestedMessage", "SingleForeignMessage", "SingleImportMessage", "SingleNestedEnum", "SingleForeignEnum", "SingleImportEnum", "SinglePublicImportMessage", "RepeatedInt32", "RepeatedInt64", "RepeatedUint32", "RepeatedUint64", "RepeatedSint32", "RepeatedSint64", "RepeatedFixed32", "RepeatedFixed64", "RepeatedSfixed32", "RepeatedSfixed64", "RepeatedFloat", "RepeatedDouble", "RepeatedBool", "RepeatedString", "RepeatedBytes", "RepeatedNestedMessage", "RepeatedForeignMessage", "RepeatedImportMessage", "RepeatedNestedEnum", "RepeatedForeignEnum", "RepeatedImportEnum", "RepeatedPublicImportMessage", "OneofUint32", "OneofNestedMessage", "OneofString", "OneofBytes" }, new[]{ "OneofField" }, new[]{ typeof(global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum) }, new pbr::GeneratedCodeInfo[] { new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage), new[]{ "Bb" }, null, null, null)}),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.NestedTestAllTypes), new[]{ "Child", "Payload", "RepeatedChild" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestDeprecatedFields), new[]{ "DeprecatedInt32" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.ForeignMessage), new[]{ "C" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestReservedFields), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestForeignNested), new[]{ "ForeignNested" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestReallyLargeTagNumber), new[]{ "A", "Bb" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestRecursiveMessage), new[]{ "A", "I" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestMutualRecursionA), new[]{ "Bb" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestMutualRecursionB), new[]{ "A", "OptionalInt32" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestCamelCaseFieldNames), new[]{ "PrimitiveField", "StringField", "EnumField", "MessageField", "RepeatedPrimitiveField", "RepeatedStringField", "RepeatedEnumField", "RepeatedMessageField" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestFieldOrderings), new[]{ "MyString", "MyInt", "MyFloat", "SingleNestedMessage" }, null, null, new pbr::GeneratedCodeInfo[] { new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestFieldOrderings.Types.NestedMessage), new[]{ "Oo", "Bb" }, null, null, null)}),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.SparseEnumMessage), new[]{ "SparseEnum" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.OneString), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.MoreString), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.OneBytes), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.MoreBytes), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.Int32Message), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.Uint32Message), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.Int64Message), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.Uint64Message), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.BoolMessage), new[]{ "Data" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestOneof), new[]{ "FooInt", "FooString", "FooMessage" }, new[]{ "Foo" }, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestPackedTypes), new[]{ "PackedInt32", "PackedInt64", "PackedUint32", "PackedUint64", "PackedSint32", "PackedSint64", "PackedFixed32", "PackedFixed64", "PackedSfixed32", "PackedSfixed64", "PackedFloat", "PackedDouble", "PackedBool", "PackedEnum" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestUnpackedTypes), new[]{ "UnpackedInt32", "UnpackedInt64", "UnpackedUint32", "UnpackedUint64", "UnpackedSint32", "UnpackedSint64", "UnpackedFixed32", "UnpackedFixed64", "UnpackedSfixed32", "UnpackedSfixed64", "UnpackedFloat", "UnpackedDouble", "UnpackedBool", "UnpackedEnum" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestRepeatedScalarDifferentTagSizes), new[]{ "RepeatedFixed32", "RepeatedInt32", "RepeatedFixed64", "RepeatedInt64", "RepeatedFloat", "RepeatedUint64" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestCommentInjectionMessage), new[]{ "A" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.FooRequest), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.FooResponse), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.FooClientMessage), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.FooServerMessage), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.BarRequest), null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.BarResponse), null, null, null, null)
+          }));
     }
     #endregion
 
@@ -190,8 +224,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestAllTypes> _parser = new pb::MessageParser<TestAllTypes>(() => new TestAllTypes());
     public static pb::MessageParser<TestAllTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "oneof_bytes", "oneof_nested_message", "oneof_string", "oneof_uint32", "repeated_bool", "repeated_bytes", "repeated_double", "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_foreign_enum", "repeated_foreign_message", "repeated_import_enum", "repeated_import_message", "repeated_int32", "repeated_int64", "repeated_nested_enum", "repeated_nested_message", "repeated_public_import_message", "repeated_sfixed32", "repeated_sfixed64", "repeated_sint32", "repeated_sint64", "repeated_string", "repeated_uint32", "repeated_uint64", "single_bool", "single_bytes", "single_double", "single_fixed32", "single_fixed64", "single_float", "single_foreign_enum", "single_foreign_message", "single_import_enum", "single_import_message", "single_int32", "single_int64", "single_nested_enum", "single_nested_message", "single_public_import_message", "single_sfixed32", "single_sfixed64", "single_sint32", "single_sint64", "single_string", "single_uint32", "single_uint64" };
-    private static readonly uint[] _fieldTags = new uint[] { 914, 898, 906, 888, 346, 362, 338, 298, 306, 330, 418, 394, 426, 402, 250, 258, 410, 386, 434, 314, 322, 282, 290, 354, 266, 274, 104, 122, 97, 61, 65, 93, 176, 154, 184, 162, 8, 16, 168, 146, 210, 77, 81, 40, 48, 114, 24, 32 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[0]; }
     }
@@ -311,7 +343,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleInt32FieldNumber = 1;
     private int singleInt32_;
-    [pbr::ProtobufField(1, "single_int32")]
     public int SingleInt32 {
       get { return singleInt32_; }
       set {
@@ -322,7 +353,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleInt64FieldNumber = 2;
     private long singleInt64_;
-    [pbr::ProtobufField(2, "single_int64")]
     public long SingleInt64 {
       get { return singleInt64_; }
       set {
@@ -333,7 +363,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleUint32FieldNumber = 3;
     private uint singleUint32_;
-    [pbr::ProtobufField(3, "single_uint32")]
     public uint SingleUint32 {
       get { return singleUint32_; }
       set {
@@ -344,7 +373,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleUint64FieldNumber = 4;
     private ulong singleUint64_;
-    [pbr::ProtobufField(4, "single_uint64")]
     public ulong SingleUint64 {
       get { return singleUint64_; }
       set {
@@ -355,7 +383,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleSint32FieldNumber = 5;
     private int singleSint32_;
-    [pbr::ProtobufField(5, "single_sint32")]
     public int SingleSint32 {
       get { return singleSint32_; }
       set {
@@ -366,7 +393,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleSint64FieldNumber = 6;
     private long singleSint64_;
-    [pbr::ProtobufField(6, "single_sint64")]
     public long SingleSint64 {
       get { return singleSint64_; }
       set {
@@ -377,7 +403,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleFixed32FieldNumber = 7;
     private uint singleFixed32_;
-    [pbr::ProtobufField(7, "single_fixed32")]
     public uint SingleFixed32 {
       get { return singleFixed32_; }
       set {
@@ -388,7 +413,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleFixed64FieldNumber = 8;
     private ulong singleFixed64_;
-    [pbr::ProtobufField(8, "single_fixed64")]
     public ulong SingleFixed64 {
       get { return singleFixed64_; }
       set {
@@ -399,7 +423,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleSfixed32FieldNumber = 9;
     private int singleSfixed32_;
-    [pbr::ProtobufField(9, "single_sfixed32")]
     public int SingleSfixed32 {
       get { return singleSfixed32_; }
       set {
@@ -410,7 +433,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleSfixed64FieldNumber = 10;
     private long singleSfixed64_;
-    [pbr::ProtobufField(10, "single_sfixed64")]
     public long SingleSfixed64 {
       get { return singleSfixed64_; }
       set {
@@ -421,7 +443,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleFloatFieldNumber = 11;
     private float singleFloat_;
-    [pbr::ProtobufField(11, "single_float")]
     public float SingleFloat {
       get { return singleFloat_; }
       set {
@@ -432,7 +453,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleDoubleFieldNumber = 12;
     private double singleDouble_;
-    [pbr::ProtobufField(12, "single_double")]
     public double SingleDouble {
       get { return singleDouble_; }
       set {
@@ -443,7 +463,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleBoolFieldNumber = 13;
     private bool singleBool_;
-    [pbr::ProtobufField(13, "single_bool")]
     public bool SingleBool {
       get { return singleBool_; }
       set {
@@ -454,7 +473,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleStringFieldNumber = 14;
     private string singleString_ = "";
-    [pbr::ProtobufField(14, "single_string")]
     public string SingleString {
       get { return singleString_; }
       set {
@@ -465,7 +483,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleBytesFieldNumber = 15;
     private pb::ByteString singleBytes_ = pb::ByteString.Empty;
-    [pbr::ProtobufField(15, "single_bytes")]
     public pb::ByteString SingleBytes {
       get { return singleBytes_; }
       set {
@@ -476,7 +493,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleNestedMessageFieldNumber = 18;
     private global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage singleNestedMessage_;
-    [pbr::ProtobufField(18, "single_nested_message")]
     public global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage SingleNestedMessage {
       get { return singleNestedMessage_; }
       set {
@@ -487,7 +503,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleForeignMessageFieldNumber = 19;
     private global::Google.Protobuf.TestProtos.ForeignMessage singleForeignMessage_;
-    [pbr::ProtobufField(19, "single_foreign_message")]
     public global::Google.Protobuf.TestProtos.ForeignMessage SingleForeignMessage {
       get { return singleForeignMessage_; }
       set {
@@ -498,7 +513,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleImportMessageFieldNumber = 20;
     private global::Google.Protobuf.TestProtos.ImportMessage singleImportMessage_;
-    [pbr::ProtobufField(20, "single_import_message")]
     public global::Google.Protobuf.TestProtos.ImportMessage SingleImportMessage {
       get { return singleImportMessage_; }
       set {
@@ -509,7 +523,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleNestedEnumFieldNumber = 21;
     private global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum singleNestedEnum_ = global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum.NESTED_ENUM_UNSPECIFIED;
-    [pbr::ProtobufField(21, "single_nested_enum")]
     public global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum SingleNestedEnum {
       get { return singleNestedEnum_; }
       set {
@@ -520,7 +533,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleForeignEnumFieldNumber = 22;
     private global::Google.Protobuf.TestProtos.ForeignEnum singleForeignEnum_ = global::Google.Protobuf.TestProtos.ForeignEnum.FOREIGN_UNSPECIFIED;
-    [pbr::ProtobufField(22, "single_foreign_enum")]
     public global::Google.Protobuf.TestProtos.ForeignEnum SingleForeignEnum {
       get { return singleForeignEnum_; }
       set {
@@ -531,7 +543,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleImportEnumFieldNumber = 23;
     private global::Google.Protobuf.TestProtos.ImportEnum singleImportEnum_ = global::Google.Protobuf.TestProtos.ImportEnum.IMPORT_ENUM_UNSPECIFIED;
-    [pbr::ProtobufField(23, "single_import_enum")]
     public global::Google.Protobuf.TestProtos.ImportEnum SingleImportEnum {
       get { return singleImportEnum_; }
       set {
@@ -542,7 +553,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SinglePublicImportMessageFieldNumber = 26;
     private global::Google.Protobuf.TestProtos.PublicImportMessage singlePublicImportMessage_;
-    [pbr::ProtobufField(26, "single_public_import_message")]
     public global::Google.Protobuf.TestProtos.PublicImportMessage SinglePublicImportMessage {
       get { return singlePublicImportMessage_; }
       set {
@@ -555,7 +565,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_repeatedInt32_codec
         = pb::FieldCodec.ForInt32(250);
     private readonly pbc::RepeatedField<int> repeatedInt32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(31, "repeated_int32")]
     public pbc::RepeatedField<int> RepeatedInt32 {
       get { return repeatedInt32_; }
     }
@@ -564,7 +573,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_repeatedInt64_codec
         = pb::FieldCodec.ForInt64(258);
     private readonly pbc::RepeatedField<long> repeatedInt64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(32, "repeated_int64")]
     public pbc::RepeatedField<long> RepeatedInt64 {
       get { return repeatedInt64_; }
     }
@@ -573,7 +581,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_repeatedUint32_codec
         = pb::FieldCodec.ForUInt32(266);
     private readonly pbc::RepeatedField<uint> repeatedUint32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(33, "repeated_uint32")]
     public pbc::RepeatedField<uint> RepeatedUint32 {
       get { return repeatedUint32_; }
     }
@@ -582,7 +589,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_repeatedUint64_codec
         = pb::FieldCodec.ForUInt64(274);
     private readonly pbc::RepeatedField<ulong> repeatedUint64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(34, "repeated_uint64")]
     public pbc::RepeatedField<ulong> RepeatedUint64 {
       get { return repeatedUint64_; }
     }
@@ -591,7 +597,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_repeatedSint32_codec
         = pb::FieldCodec.ForSInt32(282);
     private readonly pbc::RepeatedField<int> repeatedSint32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(35, "repeated_sint32")]
     public pbc::RepeatedField<int> RepeatedSint32 {
       get { return repeatedSint32_; }
     }
@@ -600,7 +605,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_repeatedSint64_codec
         = pb::FieldCodec.ForSInt64(290);
     private readonly pbc::RepeatedField<long> repeatedSint64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(36, "repeated_sint64")]
     public pbc::RepeatedField<long> RepeatedSint64 {
       get { return repeatedSint64_; }
     }
@@ -609,7 +613,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_repeatedFixed32_codec
         = pb::FieldCodec.ForFixed32(298);
     private readonly pbc::RepeatedField<uint> repeatedFixed32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(37, "repeated_fixed32")]
     public pbc::RepeatedField<uint> RepeatedFixed32 {
       get { return repeatedFixed32_; }
     }
@@ -618,7 +621,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_repeatedFixed64_codec
         = pb::FieldCodec.ForFixed64(306);
     private readonly pbc::RepeatedField<ulong> repeatedFixed64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(38, "repeated_fixed64")]
     public pbc::RepeatedField<ulong> RepeatedFixed64 {
       get { return repeatedFixed64_; }
     }
@@ -627,7 +629,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_repeatedSfixed32_codec
         = pb::FieldCodec.ForSFixed32(314);
     private readonly pbc::RepeatedField<int> repeatedSfixed32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(39, "repeated_sfixed32")]
     public pbc::RepeatedField<int> RepeatedSfixed32 {
       get { return repeatedSfixed32_; }
     }
@@ -636,7 +637,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_repeatedSfixed64_codec
         = pb::FieldCodec.ForSFixed64(322);
     private readonly pbc::RepeatedField<long> repeatedSfixed64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(40, "repeated_sfixed64")]
     public pbc::RepeatedField<long> RepeatedSfixed64 {
       get { return repeatedSfixed64_; }
     }
@@ -645,7 +645,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<float> _repeated_repeatedFloat_codec
         = pb::FieldCodec.ForFloat(330);
     private readonly pbc::RepeatedField<float> repeatedFloat_ = new pbc::RepeatedField<float>();
-    [pbr::ProtobufField(41, "repeated_float")]
     public pbc::RepeatedField<float> RepeatedFloat {
       get { return repeatedFloat_; }
     }
@@ -654,7 +653,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<double> _repeated_repeatedDouble_codec
         = pb::FieldCodec.ForDouble(338);
     private readonly pbc::RepeatedField<double> repeatedDouble_ = new pbc::RepeatedField<double>();
-    [pbr::ProtobufField(42, "repeated_double")]
     public pbc::RepeatedField<double> RepeatedDouble {
       get { return repeatedDouble_; }
     }
@@ -663,7 +661,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<bool> _repeated_repeatedBool_codec
         = pb::FieldCodec.ForBool(346);
     private readonly pbc::RepeatedField<bool> repeatedBool_ = new pbc::RepeatedField<bool>();
-    [pbr::ProtobufField(43, "repeated_bool")]
     public pbc::RepeatedField<bool> RepeatedBool {
       get { return repeatedBool_; }
     }
@@ -672,7 +669,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<string> _repeated_repeatedString_codec
         = pb::FieldCodec.ForString(354);
     private readonly pbc::RepeatedField<string> repeatedString_ = new pbc::RepeatedField<string>();
-    [pbr::ProtobufField(44, "repeated_string")]
     public pbc::RepeatedField<string> RepeatedString {
       get { return repeatedString_; }
     }
@@ -681,7 +677,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<pb::ByteString> _repeated_repeatedBytes_codec
         = pb::FieldCodec.ForBytes(362);
     private readonly pbc::RepeatedField<pb::ByteString> repeatedBytes_ = new pbc::RepeatedField<pb::ByteString>();
-    [pbr::ProtobufField(45, "repeated_bytes")]
     public pbc::RepeatedField<pb::ByteString> RepeatedBytes {
       get { return repeatedBytes_; }
     }
@@ -690,7 +685,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage> _repeated_repeatedNestedMessage_codec
         = pb::FieldCodec.ForMessage(386, global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage> repeatedNestedMessage_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage>();
-    [pbr::ProtobufField(48, "repeated_nested_message")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage> RepeatedNestedMessage {
       get { return repeatedNestedMessage_; }
     }
@@ -699,7 +693,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ForeignMessage> _repeated_repeatedForeignMessage_codec
         = pb::FieldCodec.ForMessage(394, global::Google.Protobuf.TestProtos.ForeignMessage.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignMessage> repeatedForeignMessage_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignMessage>();
-    [pbr::ProtobufField(49, "repeated_foreign_message")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignMessage> RepeatedForeignMessage {
       get { return repeatedForeignMessage_; }
     }
@@ -708,7 +701,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ImportMessage> _repeated_repeatedImportMessage_codec
         = pb::FieldCodec.ForMessage(402, global::Google.Protobuf.TestProtos.ImportMessage.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ImportMessage> repeatedImportMessage_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ImportMessage>();
-    [pbr::ProtobufField(50, "repeated_import_message")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ImportMessage> RepeatedImportMessage {
       get { return repeatedImportMessage_; }
     }
@@ -717,7 +709,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum> _repeated_repeatedNestedEnum_codec
         = pb::FieldCodec.ForEnum(410, x => (int) x, x => (global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum) x);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum> repeatedNestedEnum_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum>();
-    [pbr::ProtobufField(51, "repeated_nested_enum")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedEnum> RepeatedNestedEnum {
       get { return repeatedNestedEnum_; }
     }
@@ -726,7 +717,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ForeignEnum> _repeated_repeatedForeignEnum_codec
         = pb::FieldCodec.ForEnum(418, x => (int) x, x => (global::Google.Protobuf.TestProtos.ForeignEnum) x);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> repeatedForeignEnum_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum>();
-    [pbr::ProtobufField(52, "repeated_foreign_enum")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> RepeatedForeignEnum {
       get { return repeatedForeignEnum_; }
     }
@@ -735,7 +725,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ImportEnum> _repeated_repeatedImportEnum_codec
         = pb::FieldCodec.ForEnum(426, x => (int) x, x => (global::Google.Protobuf.TestProtos.ImportEnum) x);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ImportEnum> repeatedImportEnum_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ImportEnum>();
-    [pbr::ProtobufField(53, "repeated_import_enum")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ImportEnum> RepeatedImportEnum {
       get { return repeatedImportEnum_; }
     }
@@ -744,13 +733,11 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.PublicImportMessage> _repeated_repeatedPublicImportMessage_codec
         = pb::FieldCodec.ForMessage(434, global::Google.Protobuf.TestProtos.PublicImportMessage.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.PublicImportMessage> repeatedPublicImportMessage_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.PublicImportMessage>();
-    [pbr::ProtobufField(54, "repeated_public_import_message")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.PublicImportMessage> RepeatedPublicImportMessage {
       get { return repeatedPublicImportMessage_; }
     }
 
     public const int OneofUint32FieldNumber = 111;
-    [pbr::ProtobufField(111, "oneof_uint32")]
     public uint OneofUint32 {
       get { return oneofFieldCase_ == OneofFieldOneofCase.OneofUint32 ? (uint) oneofField_ : 0; }
       set {
@@ -761,7 +748,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int OneofNestedMessageFieldNumber = 112;
-    [pbr::ProtobufField(112, "oneof_nested_message")]
     public global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage OneofNestedMessage {
       get { return oneofFieldCase_ == OneofFieldOneofCase.OneofNestedMessage ? (global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage) oneofField_ : null; }
       set {
@@ -772,7 +758,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int OneofStringFieldNumber = 113;
-    [pbr::ProtobufField(113, "oneof_string")]
     public string OneofString {
       get { return oneofFieldCase_ == OneofFieldOneofCase.OneofString ? (string) oneofField_ : ""; }
       set {
@@ -783,7 +768,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int OneofBytesFieldNumber = 114;
-    [pbr::ProtobufField(114, "oneof_bytes")]
     public pb::ByteString OneofBytes {
       get { return oneofFieldCase_ == OneofFieldOneofCase.OneofBytes ? (pb::ByteString) oneofField_ : pb::ByteString.Empty; }
       set {
@@ -1544,8 +1528,6 @@ namespace Google.Protobuf.TestProtos {
         private static readonly pb::MessageParser<NestedMessage> _parser = new pb::MessageParser<NestedMessage>(() => new NestedMessage());
         public static pb::MessageParser<NestedMessage> Parser { get { return _parser; } }
 
-        private static readonly string[] _fieldNames = new string[] { "bb" };
-        private static readonly uint[] _fieldTags = new uint[] { 8 };
         public static pbr::MessageDescriptor Descriptor {
           get { return global::Google.Protobuf.TestProtos.TestAllTypes.Descriptor.NestedTypes[0]; }
         }
@@ -1580,7 +1562,6 @@ namespace Google.Protobuf.TestProtos {
 
         public const int BbFieldNumber = 1;
         private int bb_;
-        [pbr::ProtobufField(1, "bb")]
         public int Bb {
           get { return bb_; }
           set {
@@ -1669,8 +1650,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<NestedTestAllTypes> _parser = new pb::MessageParser<NestedTestAllTypes>(() => new NestedTestAllTypes());
     public static pb::MessageParser<NestedTestAllTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "child", "payload", "repeated_child" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 18, 26 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[1]; }
     }
@@ -1710,7 +1689,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int ChildFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.NestedTestAllTypes child_;
-    [pbr::ProtobufField(1, "child")]
     public global::Google.Protobuf.TestProtos.NestedTestAllTypes Child {
       get { return child_; }
       set {
@@ -1721,7 +1699,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int PayloadFieldNumber = 2;
     private global::Google.Protobuf.TestProtos.TestAllTypes payload_;
-    [pbr::ProtobufField(2, "payload")]
     public global::Google.Protobuf.TestProtos.TestAllTypes Payload {
       get { return payload_; }
       set {
@@ -1734,7 +1711,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.NestedTestAllTypes> _repeated_repeatedChild_codec
         = pb::FieldCodec.ForMessage(26, global::Google.Protobuf.TestProtos.NestedTestAllTypes.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.NestedTestAllTypes> repeatedChild_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.NestedTestAllTypes>();
-    [pbr::ProtobufField(3, "repeated_child")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.NestedTestAllTypes> RepeatedChild {
       get { return repeatedChild_; }
     }
@@ -1851,8 +1827,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestDeprecatedFields> _parser = new pb::MessageParser<TestDeprecatedFields>(() => new TestDeprecatedFields());
     public static pb::MessageParser<TestDeprecatedFields> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "deprecated_int32" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[2]; }
     }
@@ -1888,7 +1862,6 @@ namespace Google.Protobuf.TestProtos {
     public const int DeprecatedInt32FieldNumber = 1;
     private int deprecatedInt32_;
     [global::System.ObsoleteAttribute()]
-    [pbr::ProtobufField(1, "deprecated_int32")]
     public int DeprecatedInt32 {
       get { return deprecatedInt32_; }
       set {
@@ -1972,8 +1945,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<ForeignMessage> _parser = new pb::MessageParser<ForeignMessage>(() => new ForeignMessage());
     public static pb::MessageParser<ForeignMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "c" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[3]; }
     }
@@ -2008,7 +1979,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int CFieldNumber = 1;
     private int c_;
-    [pbr::ProtobufField(1, "c")]
     public int C {
       get { return c_; }
       set {
@@ -2092,8 +2062,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestReservedFields> _parser = new pb::MessageParser<TestReservedFields>(() => new TestReservedFields());
     public static pb::MessageParser<TestReservedFields> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[4]; }
     }
@@ -2184,8 +2152,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestForeignNested> _parser = new pb::MessageParser<TestForeignNested>(() => new TestForeignNested());
     public static pb::MessageParser<TestForeignNested> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "foreign_nested" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[5]; }
     }
@@ -2221,7 +2187,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int ForeignNestedFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage foreignNested_;
-    [pbr::ProtobufField(1, "foreign_nested")]
     public global::Google.Protobuf.TestProtos.TestAllTypes.Types.NestedMessage ForeignNested {
       get { return foreignNested_; }
       set {
@@ -2311,8 +2276,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestReallyLargeTagNumber> _parser = new pb::MessageParser<TestReallyLargeTagNumber>(() => new TestReallyLargeTagNumber());
     public static pb::MessageParser<TestReallyLargeTagNumber> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "a", "bb" };
-    private static readonly uint[] _fieldTags = new uint[] { 8, 2147483640 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[6]; }
     }
@@ -2348,7 +2311,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int AFieldNumber = 1;
     private int a_;
-    [pbr::ProtobufField(1, "a")]
     public int A {
       get { return a_; }
       set {
@@ -2359,7 +2321,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int BbFieldNumber = 268435455;
     private int bb_;
-    [pbr::ProtobufField(268435455, "bb")]
     public int Bb {
       get { return bb_; }
       set {
@@ -2459,8 +2420,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestRecursiveMessage> _parser = new pb::MessageParser<TestRecursiveMessage>(() => new TestRecursiveMessage());
     public static pb::MessageParser<TestRecursiveMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "a", "i" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 16 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[7]; }
     }
@@ -2497,7 +2456,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int AFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.TestRecursiveMessage a_;
-    [pbr::ProtobufField(1, "a")]
     public global::Google.Protobuf.TestProtos.TestRecursiveMessage A {
       get { return a_; }
       set {
@@ -2508,7 +2466,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int IFieldNumber = 2;
     private int i_;
-    [pbr::ProtobufField(2, "i")]
     public int I {
       get { return i_; }
       set {
@@ -2614,8 +2571,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestMutualRecursionA> _parser = new pb::MessageParser<TestMutualRecursionA>(() => new TestMutualRecursionA());
     public static pb::MessageParser<TestMutualRecursionA> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "bb" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[8]; }
     }
@@ -2651,7 +2606,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int BbFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.TestMutualRecursionB bb_;
-    [pbr::ProtobufField(1, "bb")]
     public global::Google.Protobuf.TestProtos.TestMutualRecursionB Bb {
       get { return bb_; }
       set {
@@ -2741,8 +2695,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestMutualRecursionB> _parser = new pb::MessageParser<TestMutualRecursionB>(() => new TestMutualRecursionB());
     public static pb::MessageParser<TestMutualRecursionB> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "a", "optional_int32" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 16 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[9]; }
     }
@@ -2779,7 +2731,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int AFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.TestMutualRecursionA a_;
-    [pbr::ProtobufField(1, "a")]
     public global::Google.Protobuf.TestProtos.TestMutualRecursionA A {
       get { return a_; }
       set {
@@ -2790,7 +2741,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int OptionalInt32FieldNumber = 2;
     private int optionalInt32_;
-    [pbr::ProtobufField(2, "optional_int32")]
     public int OptionalInt32 {
       get { return optionalInt32_; }
       set {
@@ -2896,8 +2846,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestCamelCaseFieldNames> _parser = new pb::MessageParser<TestCamelCaseFieldNames>(() => new TestCamelCaseFieldNames());
     public static pb::MessageParser<TestCamelCaseFieldNames> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "EnumField", "MessageField", "PrimitiveField", "RepeatedEnumField", "RepeatedMessageField", "RepeatedPrimitiveField", "RepeatedStringField", "StringField" };
-    private static readonly uint[] _fieldTags = new uint[] { 24, 34, 8, 74, 82, 58, 66, 18 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[10]; }
     }
@@ -2944,7 +2892,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int PrimitiveFieldFieldNumber = 1;
     private int primitiveField_;
-    [pbr::ProtobufField(1, "PrimitiveField")]
     public int PrimitiveField {
       get { return primitiveField_; }
       set {
@@ -2955,7 +2902,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int StringFieldFieldNumber = 2;
     private string stringField_ = "";
-    [pbr::ProtobufField(2, "StringField")]
     public string StringField {
       get { return stringField_; }
       set {
@@ -2966,7 +2912,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int EnumFieldFieldNumber = 3;
     private global::Google.Protobuf.TestProtos.ForeignEnum enumField_ = global::Google.Protobuf.TestProtos.ForeignEnum.FOREIGN_UNSPECIFIED;
-    [pbr::ProtobufField(3, "EnumField")]
     public global::Google.Protobuf.TestProtos.ForeignEnum EnumField {
       get { return enumField_; }
       set {
@@ -2977,7 +2922,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int MessageFieldFieldNumber = 4;
     private global::Google.Protobuf.TestProtos.ForeignMessage messageField_;
-    [pbr::ProtobufField(4, "MessageField")]
     public global::Google.Protobuf.TestProtos.ForeignMessage MessageField {
       get { return messageField_; }
       set {
@@ -2990,7 +2934,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_repeatedPrimitiveField_codec
         = pb::FieldCodec.ForInt32(58);
     private readonly pbc::RepeatedField<int> repeatedPrimitiveField_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(7, "RepeatedPrimitiveField")]
     public pbc::RepeatedField<int> RepeatedPrimitiveField {
       get { return repeatedPrimitiveField_; }
     }
@@ -2999,7 +2942,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<string> _repeated_repeatedStringField_codec
         = pb::FieldCodec.ForString(66);
     private readonly pbc::RepeatedField<string> repeatedStringField_ = new pbc::RepeatedField<string>();
-    [pbr::ProtobufField(8, "RepeatedStringField")]
     public pbc::RepeatedField<string> RepeatedStringField {
       get { return repeatedStringField_; }
     }
@@ -3008,7 +2950,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ForeignEnum> _repeated_repeatedEnumField_codec
         = pb::FieldCodec.ForEnum(74, x => (int) x, x => (global::Google.Protobuf.TestProtos.ForeignEnum) x);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> repeatedEnumField_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum>();
-    [pbr::ProtobufField(9, "RepeatedEnumField")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> RepeatedEnumField {
       get { return repeatedEnumField_; }
     }
@@ -3017,7 +2958,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ForeignMessage> _repeated_repeatedMessageField_codec
         = pb::FieldCodec.ForMessage(82, global::Google.Protobuf.TestProtos.ForeignMessage.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignMessage> repeatedMessageField_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignMessage>();
-    [pbr::ProtobufField(10, "RepeatedMessageField")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignMessage> RepeatedMessageField {
       get { return repeatedMessageField_; }
     }
@@ -3189,8 +3129,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestFieldOrderings> _parser = new pb::MessageParser<TestFieldOrderings>(() => new TestFieldOrderings());
     public static pb::MessageParser<TestFieldOrderings> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "my_float", "my_int", "my_string", "single_nested_message" };
-    private static readonly uint[] _fieldTags = new uint[] { 813, 8, 90, 1602 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[11]; }
     }
@@ -3229,7 +3167,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int MyStringFieldNumber = 11;
     private string myString_ = "";
-    [pbr::ProtobufField(11, "my_string")]
     public string MyString {
       get { return myString_; }
       set {
@@ -3240,7 +3177,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int MyIntFieldNumber = 1;
     private long myInt_;
-    [pbr::ProtobufField(1, "my_int")]
     public long MyInt {
       get { return myInt_; }
       set {
@@ -3251,7 +3187,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int MyFloatFieldNumber = 101;
     private float myFloat_;
-    [pbr::ProtobufField(101, "my_float")]
     public float MyFloat {
       get { return myFloat_; }
       set {
@@ -3262,7 +3197,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SingleNestedMessageFieldNumber = 200;
     private global::Google.Protobuf.TestProtos.TestFieldOrderings.Types.NestedMessage singleNestedMessage_;
-    [pbr::ProtobufField(200, "single_nested_message")]
     public global::Google.Protobuf.TestProtos.TestFieldOrderings.Types.NestedMessage SingleNestedMessage {
       get { return singleNestedMessage_; }
       set {
@@ -3401,8 +3335,6 @@ namespace Google.Protobuf.TestProtos {
         private static readonly pb::MessageParser<NestedMessage> _parser = new pb::MessageParser<NestedMessage>(() => new NestedMessage());
         public static pb::MessageParser<NestedMessage> Parser { get { return _parser; } }
 
-        private static readonly string[] _fieldNames = new string[] { "bb", "oo" };
-        private static readonly uint[] _fieldTags = new uint[] { 8, 16 };
         public static pbr::MessageDescriptor Descriptor {
           get { return global::Google.Protobuf.TestProtos.TestFieldOrderings.Descriptor.NestedTypes[0]; }
         }
@@ -3438,7 +3370,6 @@ namespace Google.Protobuf.TestProtos {
 
         public const int OoFieldNumber = 2;
         private long oo_;
-        [pbr::ProtobufField(2, "oo")]
         public long Oo {
           get { return oo_; }
           set {
@@ -3449,7 +3380,6 @@ namespace Google.Protobuf.TestProtos {
 
         public const int BbFieldNumber = 1;
         private int bb_;
-        [pbr::ProtobufField(1, "bb")]
         public int Bb {
           get { return bb_; }
           set {
@@ -3554,8 +3484,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<SparseEnumMessage> _parser = new pb::MessageParser<SparseEnumMessage>(() => new SparseEnumMessage());
     public static pb::MessageParser<SparseEnumMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "sparse_enum" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[12]; }
     }
@@ -3590,7 +3518,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SparseEnumFieldNumber = 1;
     private global::Google.Protobuf.TestProtos.TestSparseEnum sparseEnum_ = global::Google.Protobuf.TestProtos.TestSparseEnum.TEST_SPARSE_ENUM_UNSPECIFIED;
-    [pbr::ProtobufField(1, "sparse_enum")]
     public global::Google.Protobuf.TestProtos.TestSparseEnum SparseEnum {
       get { return sparseEnum_; }
       set {
@@ -3674,8 +3601,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<OneString> _parser = new pb::MessageParser<OneString>(() => new OneString());
     public static pb::MessageParser<OneString> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[13]; }
     }
@@ -3710,7 +3635,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private string data_ = "";
-    [pbr::ProtobufField(1, "data")]
     public string Data {
       get { return data_; }
       set {
@@ -3794,8 +3718,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<MoreString> _parser = new pb::MessageParser<MoreString>(() => new MoreString());
     public static pb::MessageParser<MoreString> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[14]; }
     }
@@ -3833,7 +3755,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<string> _repeated_data_codec
         = pb::FieldCodec.ForString(10);
     private readonly pbc::RepeatedField<string> data_ = new pbc::RepeatedField<string>();
-    [pbr::ProtobufField(1, "data")]
     public pbc::RepeatedField<string> Data {
       get { return data_; }
     }
@@ -3906,8 +3827,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<OneBytes> _parser = new pb::MessageParser<OneBytes>(() => new OneBytes());
     public static pb::MessageParser<OneBytes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[15]; }
     }
@@ -3942,7 +3861,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private pb::ByteString data_ = pb::ByteString.Empty;
-    [pbr::ProtobufField(1, "data")]
     public pb::ByteString Data {
       get { return data_; }
       set {
@@ -4026,8 +3944,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<MoreBytes> _parser = new pb::MessageParser<MoreBytes>(() => new MoreBytes());
     public static pb::MessageParser<MoreBytes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[16]; }
     }
@@ -4062,7 +3978,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private pb::ByteString data_ = pb::ByteString.Empty;
-    [pbr::ProtobufField(1, "data")]
     public pb::ByteString Data {
       get { return data_; }
       set {
@@ -4146,8 +4061,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<Int32Message> _parser = new pb::MessageParser<Int32Message>(() => new Int32Message());
     public static pb::MessageParser<Int32Message> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[17]; }
     }
@@ -4182,7 +4095,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private int data_;
-    [pbr::ProtobufField(1, "data")]
     public int Data {
       get { return data_; }
       set {
@@ -4266,8 +4178,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<Uint32Message> _parser = new pb::MessageParser<Uint32Message>(() => new Uint32Message());
     public static pb::MessageParser<Uint32Message> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[18]; }
     }
@@ -4302,7 +4212,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private uint data_;
-    [pbr::ProtobufField(1, "data")]
     public uint Data {
       get { return data_; }
       set {
@@ -4386,8 +4295,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<Int64Message> _parser = new pb::MessageParser<Int64Message>(() => new Int64Message());
     public static pb::MessageParser<Int64Message> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[19]; }
     }
@@ -4422,7 +4329,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private long data_;
-    [pbr::ProtobufField(1, "data")]
     public long Data {
       get { return data_; }
       set {
@@ -4506,8 +4412,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<Uint64Message> _parser = new pb::MessageParser<Uint64Message>(() => new Uint64Message());
     public static pb::MessageParser<Uint64Message> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[20]; }
     }
@@ -4542,7 +4446,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private ulong data_;
-    [pbr::ProtobufField(1, "data")]
     public ulong Data {
       get { return data_; }
       set {
@@ -4626,8 +4529,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<BoolMessage> _parser = new pb::MessageParser<BoolMessage>(() => new BoolMessage());
     public static pb::MessageParser<BoolMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "data" };
-    private static readonly uint[] _fieldTags = new uint[] { 8 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[21]; }
     }
@@ -4662,7 +4563,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DataFieldNumber = 1;
     private bool data_;
-    [pbr::ProtobufField(1, "data")]
     public bool Data {
       get { return data_; }
       set {
@@ -4746,8 +4646,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestOneof> _parser = new pb::MessageParser<TestOneof>(() => new TestOneof());
     public static pb::MessageParser<TestOneof> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "foo_int", "foo_message", "foo_string" };
-    private static readonly uint[] _fieldTags = new uint[] { 8, 26, 18 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[22]; }
     }
@@ -4793,7 +4691,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int FooIntFieldNumber = 1;
-    [pbr::ProtobufField(1, "foo_int")]
     public int FooInt {
       get { return fooCase_ == FooOneofCase.FooInt ? (int) foo_ : 0; }
       set {
@@ -4804,7 +4701,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int FooStringFieldNumber = 2;
-    [pbr::ProtobufField(2, "foo_string")]
     public string FooString {
       get { return fooCase_ == FooOneofCase.FooString ? (string) foo_ : ""; }
       set {
@@ -4815,7 +4711,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int FooMessageFieldNumber = 3;
-    [pbr::ProtobufField(3, "foo_message")]
     public global::Google.Protobuf.TestProtos.TestAllTypes FooMessage {
       get { return fooCase_ == FooOneofCase.FooMessage ? (global::Google.Protobuf.TestProtos.TestAllTypes) foo_ : null; }
       set {
@@ -4960,8 +4855,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestPackedTypes> _parser = new pb::MessageParser<TestPackedTypes>(() => new TestPackedTypes());
     public static pb::MessageParser<TestPackedTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "packed_bool", "packed_double", "packed_enum", "packed_fixed32", "packed_fixed64", "packed_float", "packed_int32", "packed_int64", "packed_sfixed32", "packed_sfixed64", "packed_sint32", "packed_sint64", "packed_uint32", "packed_uint64" };
-    private static readonly uint[] _fieldTags = new uint[] { 818, 810, 826, 770, 778, 802, 722, 730, 786, 794, 754, 762, 738, 746 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[23]; }
     }
@@ -5025,7 +4918,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_packedInt32_codec
         = pb::FieldCodec.ForInt32(722);
     private readonly pbc::RepeatedField<int> packedInt32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(90, "packed_int32")]
     public pbc::RepeatedField<int> PackedInt32 {
       get { return packedInt32_; }
     }
@@ -5034,7 +4926,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_packedInt64_codec
         = pb::FieldCodec.ForInt64(730);
     private readonly pbc::RepeatedField<long> packedInt64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(91, "packed_int64")]
     public pbc::RepeatedField<long> PackedInt64 {
       get { return packedInt64_; }
     }
@@ -5043,7 +4934,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_packedUint32_codec
         = pb::FieldCodec.ForUInt32(738);
     private readonly pbc::RepeatedField<uint> packedUint32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(92, "packed_uint32")]
     public pbc::RepeatedField<uint> PackedUint32 {
       get { return packedUint32_; }
     }
@@ -5052,7 +4942,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_packedUint64_codec
         = pb::FieldCodec.ForUInt64(746);
     private readonly pbc::RepeatedField<ulong> packedUint64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(93, "packed_uint64")]
     public pbc::RepeatedField<ulong> PackedUint64 {
       get { return packedUint64_; }
     }
@@ -5061,7 +4950,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_packedSint32_codec
         = pb::FieldCodec.ForSInt32(754);
     private readonly pbc::RepeatedField<int> packedSint32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(94, "packed_sint32")]
     public pbc::RepeatedField<int> PackedSint32 {
       get { return packedSint32_; }
     }
@@ -5070,7 +4958,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_packedSint64_codec
         = pb::FieldCodec.ForSInt64(762);
     private readonly pbc::RepeatedField<long> packedSint64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(95, "packed_sint64")]
     public pbc::RepeatedField<long> PackedSint64 {
       get { return packedSint64_; }
     }
@@ -5079,7 +4966,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_packedFixed32_codec
         = pb::FieldCodec.ForFixed32(770);
     private readonly pbc::RepeatedField<uint> packedFixed32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(96, "packed_fixed32")]
     public pbc::RepeatedField<uint> PackedFixed32 {
       get { return packedFixed32_; }
     }
@@ -5088,7 +4974,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_packedFixed64_codec
         = pb::FieldCodec.ForFixed64(778);
     private readonly pbc::RepeatedField<ulong> packedFixed64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(97, "packed_fixed64")]
     public pbc::RepeatedField<ulong> PackedFixed64 {
       get { return packedFixed64_; }
     }
@@ -5097,7 +4982,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_packedSfixed32_codec
         = pb::FieldCodec.ForSFixed32(786);
     private readonly pbc::RepeatedField<int> packedSfixed32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(98, "packed_sfixed32")]
     public pbc::RepeatedField<int> PackedSfixed32 {
       get { return packedSfixed32_; }
     }
@@ -5106,7 +4990,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_packedSfixed64_codec
         = pb::FieldCodec.ForSFixed64(794);
     private readonly pbc::RepeatedField<long> packedSfixed64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(99, "packed_sfixed64")]
     public pbc::RepeatedField<long> PackedSfixed64 {
       get { return packedSfixed64_; }
     }
@@ -5115,7 +4998,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<float> _repeated_packedFloat_codec
         = pb::FieldCodec.ForFloat(802);
     private readonly pbc::RepeatedField<float> packedFloat_ = new pbc::RepeatedField<float>();
-    [pbr::ProtobufField(100, "packed_float")]
     public pbc::RepeatedField<float> PackedFloat {
       get { return packedFloat_; }
     }
@@ -5124,7 +5006,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<double> _repeated_packedDouble_codec
         = pb::FieldCodec.ForDouble(810);
     private readonly pbc::RepeatedField<double> packedDouble_ = new pbc::RepeatedField<double>();
-    [pbr::ProtobufField(101, "packed_double")]
     public pbc::RepeatedField<double> PackedDouble {
       get { return packedDouble_; }
     }
@@ -5133,7 +5014,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<bool> _repeated_packedBool_codec
         = pb::FieldCodec.ForBool(818);
     private readonly pbc::RepeatedField<bool> packedBool_ = new pbc::RepeatedField<bool>();
-    [pbr::ProtobufField(102, "packed_bool")]
     public pbc::RepeatedField<bool> PackedBool {
       get { return packedBool_; }
     }
@@ -5142,7 +5022,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ForeignEnum> _repeated_packedEnum_codec
         = pb::FieldCodec.ForEnum(826, x => (int) x, x => (global::Google.Protobuf.TestProtos.ForeignEnum) x);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> packedEnum_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum>();
-    [pbr::ProtobufField(103, "packed_enum")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> PackedEnum {
       get { return packedEnum_; }
     }
@@ -5346,8 +5225,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestUnpackedTypes> _parser = new pb::MessageParser<TestUnpackedTypes>(() => new TestUnpackedTypes());
     public static pb::MessageParser<TestUnpackedTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "unpacked_bool", "unpacked_double", "unpacked_enum", "unpacked_fixed32", "unpacked_fixed64", "unpacked_float", "unpacked_int32", "unpacked_int64", "unpacked_sfixed32", "unpacked_sfixed64", "unpacked_sint32", "unpacked_sint64", "unpacked_uint32", "unpacked_uint64" };
-    private static readonly uint[] _fieldTags = new uint[] { 816, 809, 824, 773, 777, 805, 720, 728, 789, 793, 752, 760, 736, 744 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[24]; }
     }
@@ -5411,7 +5288,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_unpackedInt32_codec
         = pb::FieldCodec.ForInt32(720);
     private readonly pbc::RepeatedField<int> unpackedInt32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(90, "unpacked_int32")]
     public pbc::RepeatedField<int> UnpackedInt32 {
       get { return unpackedInt32_; }
     }
@@ -5420,7 +5296,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_unpackedInt64_codec
         = pb::FieldCodec.ForInt64(728);
     private readonly pbc::RepeatedField<long> unpackedInt64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(91, "unpacked_int64")]
     public pbc::RepeatedField<long> UnpackedInt64 {
       get { return unpackedInt64_; }
     }
@@ -5429,7 +5304,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_unpackedUint32_codec
         = pb::FieldCodec.ForUInt32(736);
     private readonly pbc::RepeatedField<uint> unpackedUint32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(92, "unpacked_uint32")]
     public pbc::RepeatedField<uint> UnpackedUint32 {
       get { return unpackedUint32_; }
     }
@@ -5438,7 +5312,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_unpackedUint64_codec
         = pb::FieldCodec.ForUInt64(744);
     private readonly pbc::RepeatedField<ulong> unpackedUint64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(93, "unpacked_uint64")]
     public pbc::RepeatedField<ulong> UnpackedUint64 {
       get { return unpackedUint64_; }
     }
@@ -5447,7 +5320,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_unpackedSint32_codec
         = pb::FieldCodec.ForSInt32(752);
     private readonly pbc::RepeatedField<int> unpackedSint32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(94, "unpacked_sint32")]
     public pbc::RepeatedField<int> UnpackedSint32 {
       get { return unpackedSint32_; }
     }
@@ -5456,7 +5328,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_unpackedSint64_codec
         = pb::FieldCodec.ForSInt64(760);
     private readonly pbc::RepeatedField<long> unpackedSint64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(95, "unpacked_sint64")]
     public pbc::RepeatedField<long> UnpackedSint64 {
       get { return unpackedSint64_; }
     }
@@ -5465,7 +5336,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_unpackedFixed32_codec
         = pb::FieldCodec.ForFixed32(773);
     private readonly pbc::RepeatedField<uint> unpackedFixed32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(96, "unpacked_fixed32")]
     public pbc::RepeatedField<uint> UnpackedFixed32 {
       get { return unpackedFixed32_; }
     }
@@ -5474,7 +5344,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_unpackedFixed64_codec
         = pb::FieldCodec.ForFixed64(777);
     private readonly pbc::RepeatedField<ulong> unpackedFixed64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(97, "unpacked_fixed64")]
     public pbc::RepeatedField<ulong> UnpackedFixed64 {
       get { return unpackedFixed64_; }
     }
@@ -5483,7 +5352,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_unpackedSfixed32_codec
         = pb::FieldCodec.ForSFixed32(789);
     private readonly pbc::RepeatedField<int> unpackedSfixed32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(98, "unpacked_sfixed32")]
     public pbc::RepeatedField<int> UnpackedSfixed32 {
       get { return unpackedSfixed32_; }
     }
@@ -5492,7 +5360,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_unpackedSfixed64_codec
         = pb::FieldCodec.ForSFixed64(793);
     private readonly pbc::RepeatedField<long> unpackedSfixed64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(99, "unpacked_sfixed64")]
     public pbc::RepeatedField<long> UnpackedSfixed64 {
       get { return unpackedSfixed64_; }
     }
@@ -5501,7 +5368,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<float> _repeated_unpackedFloat_codec
         = pb::FieldCodec.ForFloat(805);
     private readonly pbc::RepeatedField<float> unpackedFloat_ = new pbc::RepeatedField<float>();
-    [pbr::ProtobufField(100, "unpacked_float")]
     public pbc::RepeatedField<float> UnpackedFloat {
       get { return unpackedFloat_; }
     }
@@ -5510,7 +5376,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<double> _repeated_unpackedDouble_codec
         = pb::FieldCodec.ForDouble(809);
     private readonly pbc::RepeatedField<double> unpackedDouble_ = new pbc::RepeatedField<double>();
-    [pbr::ProtobufField(101, "unpacked_double")]
     public pbc::RepeatedField<double> UnpackedDouble {
       get { return unpackedDouble_; }
     }
@@ -5519,7 +5384,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<bool> _repeated_unpackedBool_codec
         = pb::FieldCodec.ForBool(816);
     private readonly pbc::RepeatedField<bool> unpackedBool_ = new pbc::RepeatedField<bool>();
-    [pbr::ProtobufField(102, "unpacked_bool")]
     public pbc::RepeatedField<bool> UnpackedBool {
       get { return unpackedBool_; }
     }
@@ -5528,7 +5392,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.TestProtos.ForeignEnum> _repeated_unpackedEnum_codec
         = pb::FieldCodec.ForEnum(824, x => (int) x, x => (global::Google.Protobuf.TestProtos.ForeignEnum) x);
     private readonly pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> unpackedEnum_ = new pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum>();
-    [pbr::ProtobufField(103, "unpacked_enum")]
     public pbc::RepeatedField<global::Google.Protobuf.TestProtos.ForeignEnum> UnpackedEnum {
       get { return unpackedEnum_; }
     }
@@ -5732,8 +5595,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestRepeatedScalarDifferentTagSizes> _parser = new pb::MessageParser<TestRepeatedScalarDifferentTagSizes>(() => new TestRepeatedScalarDifferentTagSizes());
     public static pb::MessageParser<TestRepeatedScalarDifferentTagSizes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_int32", "repeated_int64", "repeated_uint64" };
-    private static readonly uint[] _fieldTags = new uint[] { 98, 16370, 2097138, 106, 16378, 2097146 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[25]; }
     }
@@ -5781,7 +5642,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint> _repeated_repeatedFixed32_codec
         = pb::FieldCodec.ForFixed32(98);
     private readonly pbc::RepeatedField<uint> repeatedFixed32_ = new pbc::RepeatedField<uint>();
-    [pbr::ProtobufField(12, "repeated_fixed32")]
     public pbc::RepeatedField<uint> RepeatedFixed32 {
       get { return repeatedFixed32_; }
     }
@@ -5790,7 +5650,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int> _repeated_repeatedInt32_codec
         = pb::FieldCodec.ForInt32(106);
     private readonly pbc::RepeatedField<int> repeatedInt32_ = new pbc::RepeatedField<int>();
-    [pbr::ProtobufField(13, "repeated_int32")]
     public pbc::RepeatedField<int> RepeatedInt32 {
       get { return repeatedInt32_; }
     }
@@ -5799,7 +5658,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_repeatedFixed64_codec
         = pb::FieldCodec.ForFixed64(16370);
     private readonly pbc::RepeatedField<ulong> repeatedFixed64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(2046, "repeated_fixed64")]
     public pbc::RepeatedField<ulong> RepeatedFixed64 {
       get { return repeatedFixed64_; }
     }
@@ -5808,7 +5666,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long> _repeated_repeatedInt64_codec
         = pb::FieldCodec.ForInt64(16378);
     private readonly pbc::RepeatedField<long> repeatedInt64_ = new pbc::RepeatedField<long>();
-    [pbr::ProtobufField(2047, "repeated_int64")]
     public pbc::RepeatedField<long> RepeatedInt64 {
       get { return repeatedInt64_; }
     }
@@ -5817,7 +5674,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<float> _repeated_repeatedFloat_codec
         = pb::FieldCodec.ForFloat(2097138);
     private readonly pbc::RepeatedField<float> repeatedFloat_ = new pbc::RepeatedField<float>();
-    [pbr::ProtobufField(262142, "repeated_float")]
     public pbc::RepeatedField<float> RepeatedFloat {
       get { return repeatedFloat_; }
     }
@@ -5826,7 +5682,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong> _repeated_repeatedUint64_codec
         = pb::FieldCodec.ForUInt64(2097146);
     private readonly pbc::RepeatedField<ulong> repeatedUint64_ = new pbc::RepeatedField<ulong>();
-    [pbr::ProtobufField(262143, "repeated_uint64")]
     public pbc::RepeatedField<ulong> RepeatedUint64 {
       get { return repeatedUint64_; }
     }
@@ -5950,8 +5805,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestCommentInjectionMessage> _parser = new pb::MessageParser<TestCommentInjectionMessage>(() => new TestCommentInjectionMessage());
     public static pb::MessageParser<TestCommentInjectionMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "a" };
-    private static readonly uint[] _fieldTags = new uint[] { 10 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[26]; }
     }
@@ -5986,7 +5839,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int AFieldNumber = 1;
     private string a_ = "";
-    [pbr::ProtobufField(1, "a")]
     public string A {
       get { return a_; }
       set {
@@ -6070,8 +5922,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<FooRequest> _parser = new pb::MessageParser<FooRequest>(() => new FooRequest());
     public static pb::MessageParser<FooRequest> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[27]; }
     }
@@ -6162,8 +6012,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<FooResponse> _parser = new pb::MessageParser<FooResponse>(() => new FooResponse());
     public static pb::MessageParser<FooResponse> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[28]; }
     }
@@ -6254,8 +6102,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<FooClientMessage> _parser = new pb::MessageParser<FooClientMessage>(() => new FooClientMessage());
     public static pb::MessageParser<FooClientMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[29]; }
     }
@@ -6346,8 +6192,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<FooServerMessage> _parser = new pb::MessageParser<FooServerMessage>(() => new FooServerMessage());
     public static pb::MessageParser<FooServerMessage> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[30]; }
     }
@@ -6438,8 +6282,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<BarRequest> _parser = new pb::MessageParser<BarRequest>(() => new BarRequest());
     public static pb::MessageParser<BarRequest> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[31]; }
     }
@@ -6530,8 +6372,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<BarResponse> _parser = new pb::MessageParser<BarResponse>(() => new BarResponse());
     public static pb::MessageParser<BarResponse> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] {  };
-    private static readonly uint[] _fieldTags = new uint[] {  };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestProto3.Descriptor.MessageTypes[32]; }
     }
diff --git a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestWellKnownTypes.cs b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestWellKnownTypes.cs
index cbfa2d5e..3de1cbb7 100644
--- a/csharp/src/Google.Protobuf.Test/TestProtos/UnittestWellKnownTypes.cs
+++ b/csharp/src/Google.Protobuf.Test/TestProtos/UnittestWellKnownTypes.cs
@@ -156,10 +156,15 @@ namespace Google.Protobuf.TestProtos {
             "AjgBGk4KD0J5dGVzRmllbGRFbnRyeRILCgNrZXkYASABKAUSKgoFdmFsdWUY", 
             "AiABKAsyGy5nb29nbGUucHJvdG9idWYuQnl0ZXNWYWx1ZToCOAFCOQoYY29t", 
             "Lmdvb2dsZS5wcm90b2J1Zi50ZXN0UAGqAhpHb29nbGUuUHJvdG9idWYuVGVz", 
-          "dFByb3Rvc2IGcHJvdG8z"));
+            "dFByb3Rvc2IGcHJvdG8z"));
       descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
           new pbr::FileDescriptor[] { global::Google.Protobuf.WellKnownTypes.Proto.Any.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.Api.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.Duration.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.Empty.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.FieldMask.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.SourceContext.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.Struct.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.Timestamp.Descriptor, global::Google.Protobuf.WellKnownTypes.Proto.Type.Descriptor, global::Google.Protobuf.WellKnownTypes.Wrappers.Descriptor, },
-          new global::System.Type[] { typeof(global::Google.Protobuf.TestProtos.TestWellKnownTypes), typeof(global::Google.Protobuf.TestProtos.RepeatedWellKnownTypes), typeof(global::Google.Protobuf.TestProtos.OneofWellKnownTypes), typeof(global::Google.Protobuf.TestProtos.MapWellKnownTypes), null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, });
+          new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.TestWellKnownTypes), new[]{ "AnyField", "ApiField", "DurationField", "EmptyField", "FieldMaskField", "SourceContextField", "StructField", "TimestampField", "TypeField", "DoubleField", "FloatField", "Int64Field", "Uint64Field", "Int32Field", "Uint32Field", "BoolField", "StringField", "BytesField" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.RepeatedWellKnownTypes), new[]{ "AnyField", "ApiField", "DurationField", "EmptyField", "FieldMaskField", "SourceContextField", "StructField", "TimestampField", "TypeField", "DoubleField", "FloatField", "Int64Field", "Uint64Field", "Int32Field", "Uint32Field", "BoolField", "StringField", "BytesField" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.OneofWellKnownTypes), new[]{ "AnyField", "ApiField", "DurationField", "EmptyField", "FieldMaskField", "SourceContextField", "StructField", "TimestampField", "TypeField", "DoubleField", "FloatField", "Int64Field", "Uint64Field", "Int32Field", "Uint32Field", "BoolField", "StringField", "BytesField" }, new[]{ "OneofField" }, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Google.Protobuf.TestProtos.MapWellKnownTypes), new[]{ "AnyField", "ApiField", "DurationField", "EmptyField", "FieldMaskField", "SourceContextField", "StructField", "TimestampField", "TypeField", "DoubleField", "FloatField", "Int64Field", "Uint64Field", "Int32Field", "Uint32Field", "BoolField", "StringField", "BytesField" }, null, null, new pbr::GeneratedCodeInfo[] { null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, })
+          }));
     }
     #endregion
 
@@ -170,8 +175,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<TestWellKnownTypes> _parser = new pb::MessageParser<TestWellKnownTypes>(() => new TestWellKnownTypes());
     public static pb::MessageParser<TestWellKnownTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "any_field", "api_field", "bool_field", "bytes_field", "double_field", "duration_field", "empty_field", "field_mask_field", "float_field", "int32_field", "int64_field", "source_context_field", "string_field", "struct_field", "timestamp_field", "type_field", "uint32_field", "uint64_field" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 18, 130, 146, 82, 26, 34, 42, 90, 114, 98, 50, 138, 58, 66, 74, 122, 106 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestWellKnownTypes.Descriptor.MessageTypes[0]; }
     }
@@ -232,7 +235,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int AnyFieldFieldNumber = 1;
     private global::Google.Protobuf.WellKnownTypes.Any anyField_;
-    [pbr::ProtobufField(1, "any_field")]
     public global::Google.Protobuf.WellKnownTypes.Any AnyField {
       get { return anyField_; }
       set {
@@ -243,7 +245,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int ApiFieldFieldNumber = 2;
     private global::Google.Protobuf.WellKnownTypes.Api apiField_;
-    [pbr::ProtobufField(2, "api_field")]
     public global::Google.Protobuf.WellKnownTypes.Api ApiField {
       get { return apiField_; }
       set {
@@ -254,7 +255,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DurationFieldFieldNumber = 3;
     private global::Google.Protobuf.WellKnownTypes.Duration durationField_;
-    [pbr::ProtobufField(3, "duration_field")]
     public global::Google.Protobuf.WellKnownTypes.Duration DurationField {
       get { return durationField_; }
       set {
@@ -265,7 +265,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int EmptyFieldFieldNumber = 4;
     private global::Google.Protobuf.WellKnownTypes.Empty emptyField_;
-    [pbr::ProtobufField(4, "empty_field")]
     public global::Google.Protobuf.WellKnownTypes.Empty EmptyField {
       get { return emptyField_; }
       set {
@@ -276,7 +275,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int FieldMaskFieldFieldNumber = 5;
     private global::Google.Protobuf.WellKnownTypes.FieldMask fieldMaskField_;
-    [pbr::ProtobufField(5, "field_mask_field")]
     public global::Google.Protobuf.WellKnownTypes.FieldMask FieldMaskField {
       get { return fieldMaskField_; }
       set {
@@ -287,7 +285,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int SourceContextFieldFieldNumber = 6;
     private global::Google.Protobuf.WellKnownTypes.SourceContext sourceContextField_;
-    [pbr::ProtobufField(6, "source_context_field")]
     public global::Google.Protobuf.WellKnownTypes.SourceContext SourceContextField {
       get { return sourceContextField_; }
       set {
@@ -298,7 +295,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int StructFieldFieldNumber = 7;
     private global::Google.Protobuf.WellKnownTypes.Struct structField_;
-    [pbr::ProtobufField(7, "struct_field")]
     public global::Google.Protobuf.WellKnownTypes.Struct StructField {
       get { return structField_; }
       set {
@@ -309,7 +305,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int TimestampFieldFieldNumber = 8;
     private global::Google.Protobuf.WellKnownTypes.Timestamp timestampField_;
-    [pbr::ProtobufField(8, "timestamp_field")]
     public global::Google.Protobuf.WellKnownTypes.Timestamp TimestampField {
       get { return timestampField_; }
       set {
@@ -320,7 +315,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int TypeFieldFieldNumber = 9;
     private global::Google.Protobuf.WellKnownTypes.Type typeField_;
-    [pbr::ProtobufField(9, "type_field")]
     public global::Google.Protobuf.WellKnownTypes.Type TypeField {
       get { return typeField_; }
       set {
@@ -332,7 +326,6 @@ namespace Google.Protobuf.TestProtos {
     public const int DoubleFieldFieldNumber = 10;
     private static readonly pb::FieldCodec<double?> _single_doubleField_codec = pb::FieldCodec.ForStructWrapper<double>(82);
     private double? doubleField_;
-    [pbr::ProtobufField(10, "double_field")]
     public double? DoubleField {
       get { return doubleField_; }
       set {
@@ -344,7 +337,6 @@ namespace Google.Protobuf.TestProtos {
     public const int FloatFieldFieldNumber = 11;
     private static readonly pb::FieldCodec<float?> _single_floatField_codec = pb::FieldCodec.ForStructWrapper<float>(90);
     private float? floatField_;
-    [pbr::ProtobufField(11, "float_field")]
     public float? FloatField {
       get { return floatField_; }
       set {
@@ -356,7 +348,6 @@ namespace Google.Protobuf.TestProtos {
     public const int Int64FieldFieldNumber = 12;
     private static readonly pb::FieldCodec<long?> _single_int64Field_codec = pb::FieldCodec.ForStructWrapper<long>(98);
     private long? int64Field_;
-    [pbr::ProtobufField(12, "int64_field")]
     public long? Int64Field {
       get { return int64Field_; }
       set {
@@ -368,7 +359,6 @@ namespace Google.Protobuf.TestProtos {
     public const int Uint64FieldFieldNumber = 13;
     private static readonly pb::FieldCodec<ulong?> _single_uint64Field_codec = pb::FieldCodec.ForStructWrapper<ulong>(106);
     private ulong? uint64Field_;
-    [pbr::ProtobufField(13, "uint64_field")]
     public ulong? Uint64Field {
       get { return uint64Field_; }
       set {
@@ -380,7 +370,6 @@ namespace Google.Protobuf.TestProtos {
     public const int Int32FieldFieldNumber = 14;
     private static readonly pb::FieldCodec<int?> _single_int32Field_codec = pb::FieldCodec.ForStructWrapper<int>(114);
     private int? int32Field_;
-    [pbr::ProtobufField(14, "int32_field")]
     public int? Int32Field {
       get { return int32Field_; }
       set {
@@ -392,7 +381,6 @@ namespace Google.Protobuf.TestProtos {
     public const int Uint32FieldFieldNumber = 15;
     private static readonly pb::FieldCodec<uint?> _single_uint32Field_codec = pb::FieldCodec.ForStructWrapper<uint>(122);
     private uint? uint32Field_;
-    [pbr::ProtobufField(15, "uint32_field")]
     public uint? Uint32Field {
       get { return uint32Field_; }
       set {
@@ -404,7 +392,6 @@ namespace Google.Protobuf.TestProtos {
     public const int BoolFieldFieldNumber = 16;
     private static readonly pb::FieldCodec<bool?> _single_boolField_codec = pb::FieldCodec.ForStructWrapper<bool>(130);
     private bool? boolField_;
-    [pbr::ProtobufField(16, "bool_field")]
     public bool? BoolField {
       get { return boolField_; }
       set {
@@ -416,7 +403,6 @@ namespace Google.Protobuf.TestProtos {
     public const int StringFieldFieldNumber = 17;
     private static readonly pb::FieldCodec<string> _single_stringField_codec = pb::FieldCodec.ForClassWrapper<string>(138);
     private string stringField_;
-    [pbr::ProtobufField(17, "string_field")]
     public string StringField {
       get { return stringField_; }
       set {
@@ -428,7 +414,6 @@ namespace Google.Protobuf.TestProtos {
     public const int BytesFieldFieldNumber = 18;
     private static readonly pb::FieldCodec<pb::ByteString> _single_bytesField_codec = pb::FieldCodec.ForClassWrapper<pb::ByteString>(146);
     private pb::ByteString bytesField_;
-    [pbr::ProtobufField(18, "bytes_field")]
     public pb::ByteString BytesField {
       get { return bytesField_; }
       set {
@@ -874,8 +859,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<RepeatedWellKnownTypes> _parser = new pb::MessageParser<RepeatedWellKnownTypes>(() => new RepeatedWellKnownTypes());
     public static pb::MessageParser<RepeatedWellKnownTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "any_field", "api_field", "bool_field", "bytes_field", "double_field", "duration_field", "empty_field", "field_mask_field", "float_field", "int32_field", "int64_field", "source_context_field", "string_field", "struct_field", "timestamp_field", "type_field", "uint32_field", "uint64_field" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 18, 130, 146, 82, 26, 34, 42, 90, 114, 98, 50, 138, 58, 66, 74, 122, 106 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestWellKnownTypes.Descriptor.MessageTypes[1]; }
     }
@@ -947,7 +930,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Any> _repeated_anyField_codec
         = pb::FieldCodec.ForMessage(10, global::Google.Protobuf.WellKnownTypes.Any.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Any> anyField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Any>();
-    [pbr::ProtobufField(1, "any_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Any> AnyField {
       get { return anyField_; }
     }
@@ -956,7 +938,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Api> _repeated_apiField_codec
         = pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Api.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Api> apiField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Api>();
-    [pbr::ProtobufField(2, "api_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Api> ApiField {
       get { return apiField_; }
     }
@@ -965,7 +946,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Duration> _repeated_durationField_codec
         = pb::FieldCodec.ForMessage(26, global::Google.Protobuf.WellKnownTypes.Duration.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Duration> durationField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Duration>();
-    [pbr::ProtobufField(3, "duration_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Duration> DurationField {
       get { return durationField_; }
     }
@@ -974,7 +954,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Empty> _repeated_emptyField_codec
         = pb::FieldCodec.ForMessage(34, global::Google.Protobuf.WellKnownTypes.Empty.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Empty> emptyField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Empty>();
-    [pbr::ProtobufField(4, "empty_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Empty> EmptyField {
       get { return emptyField_; }
     }
@@ -983,7 +962,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.FieldMask> _repeated_fieldMaskField_codec
         = pb::FieldCodec.ForMessage(42, global::Google.Protobuf.WellKnownTypes.FieldMask.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.FieldMask> fieldMaskField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.FieldMask>();
-    [pbr::ProtobufField(5, "field_mask_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.FieldMask> FieldMaskField {
       get { return fieldMaskField_; }
     }
@@ -992,7 +970,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.SourceContext> _repeated_sourceContextField_codec
         = pb::FieldCodec.ForMessage(50, global::Google.Protobuf.WellKnownTypes.SourceContext.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.SourceContext> sourceContextField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.SourceContext>();
-    [pbr::ProtobufField(6, "source_context_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.SourceContext> SourceContextField {
       get { return sourceContextField_; }
     }
@@ -1001,7 +978,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Struct> _repeated_structField_codec
         = pb::FieldCodec.ForMessage(58, global::Google.Protobuf.WellKnownTypes.Struct.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Struct> structField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Struct>();
-    [pbr::ProtobufField(7, "struct_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Struct> StructField {
       get { return structField_; }
     }
@@ -1010,7 +986,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Timestamp> _repeated_timestampField_codec
         = pb::FieldCodec.ForMessage(66, global::Google.Protobuf.WellKnownTypes.Timestamp.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Timestamp> timestampField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Timestamp>();
-    [pbr::ProtobufField(8, "timestamp_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Timestamp> TimestampField {
       get { return timestampField_; }
     }
@@ -1019,7 +994,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<global::Google.Protobuf.WellKnownTypes.Type> _repeated_typeField_codec
         = pb::FieldCodec.ForMessage(74, global::Google.Protobuf.WellKnownTypes.Type.Parser);
     private readonly pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Type> typeField_ = new pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Type>();
-    [pbr::ProtobufField(9, "type_field")]
     public pbc::RepeatedField<global::Google.Protobuf.WellKnownTypes.Type> TypeField {
       get { return typeField_; }
     }
@@ -1028,7 +1002,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<double?> _repeated_doubleField_codec
         = pb::FieldCodec.ForStructWrapper<double>(82);
     private readonly pbc::RepeatedField<double?> doubleField_ = new pbc::RepeatedField<double?>();
-    [pbr::ProtobufField(10, "double_field")]
     public pbc::RepeatedField<double?> DoubleField {
       get { return doubleField_; }
     }
@@ -1037,7 +1010,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<float?> _repeated_floatField_codec
         = pb::FieldCodec.ForStructWrapper<float>(90);
     private readonly pbc::RepeatedField<float?> floatField_ = new pbc::RepeatedField<float?>();
-    [pbr::ProtobufField(11, "float_field")]
     public pbc::RepeatedField<float?> FloatField {
       get { return floatField_; }
     }
@@ -1046,7 +1018,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<long?> _repeated_int64Field_codec
         = pb::FieldCodec.ForStructWrapper<long>(98);
     private readonly pbc::RepeatedField<long?> int64Field_ = new pbc::RepeatedField<long?>();
-    [pbr::ProtobufField(12, "int64_field")]
     public pbc::RepeatedField<long?> Int64Field {
       get { return int64Field_; }
     }
@@ -1055,7 +1026,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<ulong?> _repeated_uint64Field_codec
         = pb::FieldCodec.ForStructWrapper<ulong>(106);
     private readonly pbc::RepeatedField<ulong?> uint64Field_ = new pbc::RepeatedField<ulong?>();
-    [pbr::ProtobufField(13, "uint64_field")]
     public pbc::RepeatedField<ulong?> Uint64Field {
       get { return uint64Field_; }
     }
@@ -1064,7 +1034,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<int?> _repeated_int32Field_codec
         = pb::FieldCodec.ForStructWrapper<int>(114);
     private readonly pbc::RepeatedField<int?> int32Field_ = new pbc::RepeatedField<int?>();
-    [pbr::ProtobufField(14, "int32_field")]
     public pbc::RepeatedField<int?> Int32Field {
       get { return int32Field_; }
     }
@@ -1073,7 +1042,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<uint?> _repeated_uint32Field_codec
         = pb::FieldCodec.ForStructWrapper<uint>(122);
     private readonly pbc::RepeatedField<uint?> uint32Field_ = new pbc::RepeatedField<uint?>();
-    [pbr::ProtobufField(15, "uint32_field")]
     public pbc::RepeatedField<uint?> Uint32Field {
       get { return uint32Field_; }
     }
@@ -1082,7 +1050,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<bool?> _repeated_boolField_codec
         = pb::FieldCodec.ForStructWrapper<bool>(130);
     private readonly pbc::RepeatedField<bool?> boolField_ = new pbc::RepeatedField<bool?>();
-    [pbr::ProtobufField(16, "bool_field")]
     public pbc::RepeatedField<bool?> BoolField {
       get { return boolField_; }
     }
@@ -1091,7 +1058,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<string> _repeated_stringField_codec
         = pb::FieldCodec.ForClassWrapper<string>(138);
     private readonly pbc::RepeatedField<string> stringField_ = new pbc::RepeatedField<string>();
-    [pbr::ProtobufField(17, "string_field")]
     public pbc::RepeatedField<string> StringField {
       get { return stringField_; }
     }
@@ -1100,7 +1066,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::FieldCodec<pb::ByteString> _repeated_bytesField_codec
         = pb::FieldCodec.ForClassWrapper<pb::ByteString>(146);
     private readonly pbc::RepeatedField<pb::ByteString> bytesField_ = new pbc::RepeatedField<pb::ByteString>();
-    [pbr::ProtobufField(18, "bytes_field")]
     public pbc::RepeatedField<pb::ByteString> BytesField {
       get { return bytesField_; }
     }
@@ -1326,8 +1291,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<OneofWellKnownTypes> _parser = new pb::MessageParser<OneofWellKnownTypes>(() => new OneofWellKnownTypes());
     public static pb::MessageParser<OneofWellKnownTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "any_field", "api_field", "bool_field", "bytes_field", "double_field", "duration_field", "empty_field", "field_mask_field", "float_field", "int32_field", "int64_field", "source_context_field", "string_field", "struct_field", "timestamp_field", "type_field", "uint32_field", "uint64_field" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 18, 130, 146, 82, 26, 34, 42, 90, 114, 98, 50, 138, 58, 66, 74, 122, 106 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestWellKnownTypes.Descriptor.MessageTypes[2]; }
     }
@@ -1418,7 +1381,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int AnyFieldFieldNumber = 1;
-    [pbr::ProtobufField(1, "any_field")]
     public global::Google.Protobuf.WellKnownTypes.Any AnyField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.AnyField ? (global::Google.Protobuf.WellKnownTypes.Any) oneofField_ : null; }
       set {
@@ -1429,7 +1391,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int ApiFieldFieldNumber = 2;
-    [pbr::ProtobufField(2, "api_field")]
     public global::Google.Protobuf.WellKnownTypes.Api ApiField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.ApiField ? (global::Google.Protobuf.WellKnownTypes.Api) oneofField_ : null; }
       set {
@@ -1440,7 +1401,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int DurationFieldFieldNumber = 3;
-    [pbr::ProtobufField(3, "duration_field")]
     public global::Google.Protobuf.WellKnownTypes.Duration DurationField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.DurationField ? (global::Google.Protobuf.WellKnownTypes.Duration) oneofField_ : null; }
       set {
@@ -1451,7 +1411,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int EmptyFieldFieldNumber = 4;
-    [pbr::ProtobufField(4, "empty_field")]
     public global::Google.Protobuf.WellKnownTypes.Empty EmptyField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.EmptyField ? (global::Google.Protobuf.WellKnownTypes.Empty) oneofField_ : null; }
       set {
@@ -1462,7 +1421,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int FieldMaskFieldFieldNumber = 5;
-    [pbr::ProtobufField(5, "field_mask_field")]
     public global::Google.Protobuf.WellKnownTypes.FieldMask FieldMaskField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.FieldMaskField ? (global::Google.Protobuf.WellKnownTypes.FieldMask) oneofField_ : null; }
       set {
@@ -1473,7 +1431,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int SourceContextFieldFieldNumber = 6;
-    [pbr::ProtobufField(6, "source_context_field")]
     public global::Google.Protobuf.WellKnownTypes.SourceContext SourceContextField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.SourceContextField ? (global::Google.Protobuf.WellKnownTypes.SourceContext) oneofField_ : null; }
       set {
@@ -1484,7 +1441,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int StructFieldFieldNumber = 7;
-    [pbr::ProtobufField(7, "struct_field")]
     public global::Google.Protobuf.WellKnownTypes.Struct StructField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.StructField ? (global::Google.Protobuf.WellKnownTypes.Struct) oneofField_ : null; }
       set {
@@ -1495,7 +1451,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int TimestampFieldFieldNumber = 8;
-    [pbr::ProtobufField(8, "timestamp_field")]
     public global::Google.Protobuf.WellKnownTypes.Timestamp TimestampField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.TimestampField ? (global::Google.Protobuf.WellKnownTypes.Timestamp) oneofField_ : null; }
       set {
@@ -1506,7 +1461,6 @@ namespace Google.Protobuf.TestProtos {
     }
 
     public const int TypeFieldFieldNumber = 9;
-    [pbr::ProtobufField(9, "type_field")]
     public global::Google.Protobuf.WellKnownTypes.Type TypeField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.TypeField ? (global::Google.Protobuf.WellKnownTypes.Type) oneofField_ : null; }
       set {
@@ -1518,7 +1472,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int DoubleFieldFieldNumber = 10;
     private static readonly pb::FieldCodec<double?> _oneof_doubleField_codec = pb::FieldCodec.ForStructWrapper<double>(82);
-    [pbr::ProtobufField(10, "double_field")]
     public double? DoubleField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.DoubleField ? (double?) oneofField_ : (double?) null; }
       set {
@@ -1530,7 +1483,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int FloatFieldFieldNumber = 11;
     private static readonly pb::FieldCodec<float?> _oneof_floatField_codec = pb::FieldCodec.ForStructWrapper<float>(90);
-    [pbr::ProtobufField(11, "float_field")]
     public float? FloatField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.FloatField ? (float?) oneofField_ : (float?) null; }
       set {
@@ -1542,7 +1494,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int Int64FieldFieldNumber = 12;
     private static readonly pb::FieldCodec<long?> _oneof_int64Field_codec = pb::FieldCodec.ForStructWrapper<long>(98);
-    [pbr::ProtobufField(12, "int64_field")]
     public long? Int64Field {
       get { return oneofFieldCase_ == OneofFieldOneofCase.Int64Field ? (long?) oneofField_ : (long?) null; }
       set {
@@ -1554,7 +1505,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int Uint64FieldFieldNumber = 13;
     private static readonly pb::FieldCodec<ulong?> _oneof_uint64Field_codec = pb::FieldCodec.ForStructWrapper<ulong>(106);
-    [pbr::ProtobufField(13, "uint64_field")]
     public ulong? Uint64Field {
       get { return oneofFieldCase_ == OneofFieldOneofCase.Uint64Field ? (ulong?) oneofField_ : (ulong?) null; }
       set {
@@ -1566,7 +1516,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int Int32FieldFieldNumber = 14;
     private static readonly pb::FieldCodec<int?> _oneof_int32Field_codec = pb::FieldCodec.ForStructWrapper<int>(114);
-    [pbr::ProtobufField(14, "int32_field")]
     public int? Int32Field {
       get { return oneofFieldCase_ == OneofFieldOneofCase.Int32Field ? (int?) oneofField_ : (int?) null; }
       set {
@@ -1578,7 +1527,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int Uint32FieldFieldNumber = 15;
     private static readonly pb::FieldCodec<uint?> _oneof_uint32Field_codec = pb::FieldCodec.ForStructWrapper<uint>(122);
-    [pbr::ProtobufField(15, "uint32_field")]
     public uint? Uint32Field {
       get { return oneofFieldCase_ == OneofFieldOneofCase.Uint32Field ? (uint?) oneofField_ : (uint?) null; }
       set {
@@ -1590,7 +1538,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int BoolFieldFieldNumber = 16;
     private static readonly pb::FieldCodec<bool?> _oneof_boolField_codec = pb::FieldCodec.ForStructWrapper<bool>(130);
-    [pbr::ProtobufField(16, "bool_field")]
     public bool? BoolField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.BoolField ? (bool?) oneofField_ : (bool?) null; }
       set {
@@ -1602,7 +1549,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int StringFieldFieldNumber = 17;
     private static readonly pb::FieldCodec<string> _oneof_stringField_codec = pb::FieldCodec.ForClassWrapper<string>(138);
-    [pbr::ProtobufField(17, "string_field")]
     public string StringField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.StringField ? (string) oneofField_ : (string) null; }
       set {
@@ -1614,7 +1560,6 @@ namespace Google.Protobuf.TestProtos {
 
     public const int BytesFieldFieldNumber = 18;
     private static readonly pb::FieldCodec<pb::ByteString> _oneof_bytesField_codec = pb::FieldCodec.ForClassWrapper<pb::ByteString>(146);
-    [pbr::ProtobufField(18, "bytes_field")]
     public pb::ByteString BytesField {
       get { return oneofFieldCase_ == OneofFieldOneofCase.BytesField ? (pb::ByteString) oneofField_ : (pb::ByteString) null; }
       set {
@@ -2045,8 +1990,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pb::MessageParser<MapWellKnownTypes> _parser = new pb::MessageParser<MapWellKnownTypes>(() => new MapWellKnownTypes());
     public static pb::MessageParser<MapWellKnownTypes> Parser { get { return _parser; } }
 
-    private static readonly string[] _fieldNames = new string[] { "any_field", "api_field", "bool_field", "bytes_field", "double_field", "duration_field", "empty_field", "field_mask_field", "float_field", "int32_field", "int64_field", "source_context_field", "string_field", "struct_field", "timestamp_field", "type_field", "uint32_field", "uint64_field" };
-    private static readonly uint[] _fieldTags = new uint[] { 10, 18, 130, 146, 82, 26, 34, 42, 90, 114, 98, 50, 138, 58, 66, 74, 122, 106 };
     public static pbr::MessageDescriptor Descriptor {
       get { return global::Google.Protobuf.TestProtos.UnittestWellKnownTypes.Descriptor.MessageTypes[3]; }
     }
@@ -2118,7 +2061,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Any>.Codec _map_anyField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Any>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Any.Parser), 10);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Any> anyField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Any>();
-    [pbr::ProtobufField(1, "any_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Any> AnyField {
       get { return anyField_; }
     }
@@ -2127,7 +2069,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Api>.Codec _map_apiField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Api>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Api.Parser), 18);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Api> apiField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Api>();
-    [pbr::ProtobufField(2, "api_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Api> ApiField {
       get { return apiField_; }
     }
@@ -2136,7 +2077,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Duration>.Codec _map_durationField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Duration>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Duration.Parser), 26);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Duration> durationField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Duration>();
-    [pbr::ProtobufField(3, "duration_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Duration> DurationField {
       get { return durationField_; }
     }
@@ -2145,7 +2085,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Empty>.Codec _map_emptyField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Empty>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Empty.Parser), 34);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Empty> emptyField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Empty>();
-    [pbr::ProtobufField(4, "empty_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Empty> EmptyField {
       get { return emptyField_; }
     }
@@ -2154,7 +2093,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.FieldMask>.Codec _map_fieldMaskField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.FieldMask>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.FieldMask.Parser), 42);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.FieldMask> fieldMaskField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.FieldMask>();
-    [pbr::ProtobufField(5, "field_mask_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.FieldMask> FieldMaskField {
       get { return fieldMaskField_; }
     }
@@ -2163,7 +2101,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.SourceContext>.Codec _map_sourceContextField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.SourceContext>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.SourceContext.Parser), 50);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.SourceContext> sourceContextField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.SourceContext>();
-    [pbr::ProtobufField(6, "source_context_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.SourceContext> SourceContextField {
       get { return sourceContextField_; }
     }
@@ -2172,7 +2109,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Struct>.Codec _map_structField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Struct>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Struct.Parser), 58);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Struct> structField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Struct>();
-    [pbr::ProtobufField(7, "struct_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Struct> StructField {
       get { return structField_; }
     }
@@ -2181,7 +2117,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Timestamp>.Codec _map_timestampField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Timestamp>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Timestamp.Parser), 66);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Timestamp> timestampField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Timestamp>();
-    [pbr::ProtobufField(8, "timestamp_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Timestamp> TimestampField {
       get { return timestampField_; }
     }
@@ -2190,7 +2125,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Type>.Codec _map_typeField_codec
         = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Type>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForMessage(18, global::Google.Protobuf.WellKnownTypes.Type.Parser), 74);
     private readonly pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Type> typeField_ = new pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Type>();
-    [pbr::ProtobufField(9, "type_field")]
     public pbc::MapField<int, global::Google.Protobuf.WellKnownTypes.Type> TypeField {
       get { return typeField_; }
     }
@@ -2199,7 +2133,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, double?>.Codec _map_doubleField_codec
         = new pbc::MapField<int, double?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<double>(18), 82);
     private readonly pbc::MapField<int, double?> doubleField_ = new pbc::MapField<int, double?>(true);
-    [pbr::ProtobufField(10, "double_field")]
     public pbc::MapField<int, double?> DoubleField {
       get { return doubleField_; }
     }
@@ -2208,7 +2141,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, float?>.Codec _map_floatField_codec
         = new pbc::MapField<int, float?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<float>(18), 90);
     private readonly pbc::MapField<int, float?> floatField_ = new pbc::MapField<int, float?>(true);
-    [pbr::ProtobufField(11, "float_field")]
     public pbc::MapField<int, float?> FloatField {
       get { return floatField_; }
     }
@@ -2217,7 +2149,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, long?>.Codec _map_int64Field_codec
         = new pbc::MapField<int, long?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<long>(18), 98);
     private readonly pbc::MapField<int, long?> int64Field_ = new pbc::MapField<int, long?>(true);
-    [pbr::ProtobufField(12, "int64_field")]
     public pbc::MapField<int, long?> Int64Field {
       get { return int64Field_; }
     }
@@ -2226,7 +2157,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, ulong?>.Codec _map_uint64Field_codec
         = new pbc::MapField<int, ulong?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<ulong>(18), 106);
     private readonly pbc::MapField<int, ulong?> uint64Field_ = new pbc::MapField<int, ulong?>(true);
-    [pbr::ProtobufField(13, "uint64_field")]
     public pbc::MapField<int, ulong?> Uint64Field {
       get { return uint64Field_; }
     }
@@ -2235,7 +2165,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, int?>.Codec _map_int32Field_codec
         = new pbc::MapField<int, int?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<int>(18), 114);
     private readonly pbc::MapField<int, int?> int32Field_ = new pbc::MapField<int, int?>(true);
-    [pbr::ProtobufField(14, "int32_field")]
     public pbc::MapField<int, int?> Int32Field {
       get { return int32Field_; }
     }
@@ -2244,7 +2173,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, uint?>.Codec _map_uint32Field_codec
         = new pbc::MapField<int, uint?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<uint>(18), 122);
     private readonly pbc::MapField<int, uint?> uint32Field_ = new pbc::MapField<int, uint?>(true);
-    [pbr::ProtobufField(15, "uint32_field")]
     public pbc::MapField<int, uint?> Uint32Field {
       get { return uint32Field_; }
     }
@@ -2253,7 +2181,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, bool?>.Codec _map_boolField_codec
         = new pbc::MapField<int, bool?>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForStructWrapper<bool>(18), 130);
     private readonly pbc::MapField<int, bool?> boolField_ = new pbc::MapField<int, bool?>(true);
-    [pbr::ProtobufField(16, "bool_field")]
     public pbc::MapField<int, bool?> BoolField {
       get { return boolField_; }
     }
@@ -2262,7 +2189,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, string>.Codec _map_stringField_codec
         = new pbc::MapField<int, string>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForClassWrapper<string>(18), 138);
     private readonly pbc::MapField<int, string> stringField_ = new pbc::MapField<int, string>(true);
-    [pbr::ProtobufField(17, "string_field")]
     public pbc::MapField<int, string> StringField {
       get { return stringField_; }
     }
@@ -2271,7 +2197,6 @@ namespace Google.Protobuf.TestProtos {
     private static readonly pbc::MapField<int, pb::ByteString>.Codec _map_bytesField_codec
         = new pbc::MapField<int, pb::ByteString>.Codec(pb::FieldCodec.ForInt32(8), pb::FieldCodec.ForClassWrapper<pb::ByteString>(18), 146);
     private readonly pbc::MapField<int, pb::ByteString> bytesField_ = new pbc::MapField<int, pb::ByteString>(true);
-    [pbr::ProtobufField(18, "bytes_field")]
     public pbc::MapField<int, pb::ByteString> BytesField {
       get { return bytesField_; }
     }