[C++] Add Builder and Table typedefs (#5685)

* Add Builder and Table typedefs

This gives us a way to use templates to go from a builder to a table
and back again without having to pass both types in.

* Fix tests/cpp17/generated_cpp17/monster_test_generated.h

include/flatbuffers/reflection_generated.h

@@ -9,22 +9,31 @@
 namespace reflection {
 
 struct Type;
+struct TypeBuilder;
 
 struct KeyValue;
+struct KeyValueBuilder;
 
 struct EnumVal;
+struct EnumValBuilder;
 
 struct Enum;
+struct EnumBuilder;
 
 struct Field;
+struct FieldBuilder;
 
 struct Object;
+struct ObjectBuilder;
 
 struct RPCCall;
+struct RPCCallBuilder;
 
 struct Service;
+struct ServiceBuilder;
 
 struct Schema;
+struct SchemaBuilder;
 
 enum BaseType {
   None = 0,
@@ -103,6 +112,7 @@ inline const char *EnumNameBaseType(BaseType e) {
 }
 
 struct Type FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef TypeBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_BASE_TYPE = 4,
     VT_ELEMENT = 6,
@@ -132,6 +142,7 @@ struct Type FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct TypeBuilder {
+  typedef Type Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_base_type(reflection::BaseType base_type) {
@@ -173,6 +184,7 @@ inline flatbuffers::Offset<Type> CreateType(
 }
 
 struct KeyValue FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef KeyValueBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_KEY = 4,
     VT_VALUE = 6
@@ -200,6 +212,7 @@ struct KeyValue FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct KeyValueBuilder {
+  typedef KeyValue Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_key(flatbuffers::Offset<flatbuffers::String> key) {
@@ -244,6 +257,7 @@ inline flatbuffers::Offset<KeyValue> CreateKeyValueDirect(
 }
 
 struct EnumVal FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef EnumValBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_VALUE = 6,
@@ -289,6 +303,7 @@ struct EnumVal FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct EnumValBuilder {
+  typedef EnumVal Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -354,6 +369,7 @@ inline flatbuffers::Offset<EnumVal> CreateEnumValDirect(
 }
 
 struct Enum FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef EnumBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_VALUES = 6,
@@ -407,6 +423,7 @@ struct Enum FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct EnumBuilder {
+  typedef Enum Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -483,6 +500,7 @@ inline flatbuffers::Offset<Enum> CreateEnumDirect(
 }
 
 struct Field FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef FieldBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_TYPE = 6,
@@ -559,6 +577,7 @@ struct Field FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct FieldBuilder {
+  typedef Field Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -668,6 +687,7 @@ inline flatbuffers::Offset<Field> CreateFieldDirect(
 }
 
 struct Object FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef ObjectBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_FIELDS = 6,
@@ -725,6 +745,7 @@ struct Object FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct ObjectBuilder {
+  typedef Object Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -807,6 +828,7 @@ inline flatbuffers::Offset<Object> CreateObjectDirect(
 }
 
 struct RPCCall FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef RPCCallBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_REQUEST = 6,
@@ -854,6 +876,7 @@ struct RPCCall FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct RPCCallBuilder {
+  typedef RPCCall Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -922,6 +945,7 @@ inline flatbuffers::Offset<RPCCall> CreateRPCCallDirect(
 }
 
 struct Service FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef ServiceBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_NAME = 4,
     VT_CALLS = 6,
@@ -964,6 +988,7 @@ struct Service FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct ServiceBuilder {
+  typedef Service Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -1024,6 +1049,7 @@ inline flatbuffers::Offset<Service> CreateServiceDirect(
 }
 
 struct Schema FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
+  typedef SchemaBuilder Builder;
   enum FlatBuffersVTableOffset FLATBUFFERS_VTABLE_UNDERLYING_TYPE {
     VT_OBJECTS = 4,
     VT_ENUMS = 6,
@@ -1072,6 +1098,7 @@ struct Schema FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct SchemaBuilder {
+  typedef Schema Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_objects(flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<reflection::Object>>> objects) {

samples/monster_generated.h

@@ -12,9 +12,11 @@ namespace Sample {
 struct Vec3;
 
 struct Monster;
+struct MonsterBuilder;
 struct MonsterT;
 
 struct Weapon;
+struct WeaponBuilder;
 struct WeaponT;
 
 bool operator==(const Vec3 &lhs, const Vec3 &rhs);
@@ -256,6 +258,7 @@ inline bool operator!=(const MonsterT &lhs, const MonsterT &rhs) {
 
 struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MonsterT NativeTableType;
+  typedef MonsterBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MonsterTypeTable();
   }
@@ -362,6 +365,7 @@ template<> inline const MyGame::Sample::Weapon *Monster::equipped_as<MyGame::Sam
 }
 
 struct MonsterBuilder {
+  typedef Monster Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_pos(const MyGame::Sample::Vec3 *pos) {
@@ -486,6 +490,7 @@ inline bool operator!=(const WeaponT &lhs, const WeaponT &rhs) {
 
 struct Weapon FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef WeaponT NativeTableType;
+  typedef WeaponBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return WeaponTypeTable();
   }
@@ -518,6 +523,7 @@ struct Weapon FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct WeaponBuilder {
+  typedef Weapon Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {

src/idl_gen_cpp.cpp

@@ -273,6 +273,9 @@ class CppGenerator : public BaseGenerator {
       if (!struct_def.generated) {
         SetNameSpace(struct_def.defined_namespace);
         code_ += "struct " + Name(struct_def) + ";";
+        if (!struct_def.fixed) {
+          code_ += "struct " + Name(struct_def) + "Builder;";
+        }
         if (opts_.generate_object_based_api) {
           auto nativeName = NativeName(Name(struct_def), &struct_def, opts_);
           if (!struct_def.fixed) { code_ += "struct " + nativeName + ";"; }
@@ -1833,6 +1836,7 @@ class CppGenerator : public BaseGenerator {
     if (opts_.generate_object_based_api) {
       code_ += "  typedef {{NATIVE_NAME}} NativeTableType;";
     }
+    code_ += "  typedef {{STRUCT_NAME}}Builder Builder;";
     if (opts_.mini_reflect != IDLOptions::kNone) {
       code_ +=
           "  static const flatbuffers::TypeTable *MiniReflectTypeTable() {";
@@ -2085,6 +2089,7 @@ class CppGenerator : public BaseGenerator {
 
     // Generate a builder struct:
     code_ += "struct {{STRUCT_NAME}}Builder {";
+    code_ += "  typedef {{STRUCT_NAME}} Table;";
     code_ += "  flatbuffers::FlatBufferBuilder &fbb_;";
     code_ += "  flatbuffers::uoffset_t start_;";
 

tests/arrays_test_generated.h

@@ -14,6 +14,7 @@ struct NestedStruct;
 struct ArrayStruct;
 
 struct ArrayTable;
+struct ArrayTableBuilder;
 struct ArrayTableT;
 
 bool operator==(const NestedStruct &lhs, const NestedStruct &rhs);
@@ -229,6 +230,7 @@ inline bool operator!=(const ArrayTableT &lhs, const ArrayTableT &rhs) {
 
 struct ArrayTable FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef ArrayTableT NativeTableType;
+  typedef ArrayTableBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return ArrayTableTypeTable();
   }
@@ -252,6 +254,7 @@ struct ArrayTable FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct ArrayTableBuilder {
+  typedef ArrayTable Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_a(const MyGame::Example::ArrayStruct *a) {

tests/cpp17/generated_cpp17/monster_test_generated.h

@@ -10,11 +10,13 @@
 namespace MyGame {
 
 struct InParentNamespace;
+struct InParentNamespaceBuilder;
 struct InParentNamespaceT;
 
 namespace Example2 {
 
 struct Monster;
+struct MonsterBuilder;
 struct MonsterT;
 
 }  // namespace Example2
@@ -24,6 +26,7 @@ namespace Example {
 struct Test;
 
 struct TestSimpleTableWithEnum;
+struct TestSimpleTableWithEnumBuilder;
 struct TestSimpleTableWithEnumT;
 
 struct Vec3;
@@ -31,15 +34,19 @@ struct Vec3;
 struct Ability;
 
 struct Stat;
+struct StatBuilder;
 struct StatT;
 
 struct Referrable;
+struct ReferrableBuilder;
 struct ReferrableT;
 
 struct Monster;
+struct MonsterBuilder;
 struct MonsterT;
 
 struct TypeAliases;
+struct TypeAliasesBuilder;
 struct TypeAliasesT;
 
 }  // namespace Example
@@ -613,6 +620,7 @@ struct InParentNamespaceT : public flatbuffers::NativeTable {
 
 struct InParentNamespace FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef InParentNamespaceT NativeTableType;
+  typedef InParentNamespaceBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return InParentNamespaceTypeTable();
   }
@@ -626,6 +634,7 @@ struct InParentNamespace FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct InParentNamespaceBuilder {
+  typedef InParentNamespace Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   explicit InParentNamespaceBuilder(flatbuffers::FlatBufferBuilder &_fbb)
@@ -658,6 +667,7 @@ struct MonsterT : public flatbuffers::NativeTable {
 
 struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MonsterT NativeTableType;
+  typedef MonsterBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MonsterTypeTable();
   }
@@ -671,6 +681,7 @@ struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct MonsterBuilder {
+  typedef Monster Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   explicit MonsterBuilder(flatbuffers::FlatBufferBuilder &_fbb)
@@ -707,6 +718,7 @@ struct TestSimpleTableWithEnumT : public flatbuffers::NativeTable {
 
 struct TestSimpleTableWithEnum FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TestSimpleTableWithEnumT NativeTableType;
+  typedef TestSimpleTableWithEnumBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TestSimpleTableWithEnumTypeTable();
   }
@@ -730,6 +742,7 @@ struct TestSimpleTableWithEnum FLATBUFFERS_FINAL_CLASS : private flatbuffers::Ta
 };
 
 struct TestSimpleTableWithEnumBuilder {
+  typedef TestSimpleTableWithEnum Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_color(MyGame::Example::Color color) {
@@ -770,6 +783,7 @@ struct StatT : public flatbuffers::NativeTable {
 
 struct Stat FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef StatT NativeTableType;
+  typedef StatBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return StatTypeTable();
   }
@@ -810,6 +824,7 @@ struct Stat FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct StatBuilder {
+  typedef Stat Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_id(flatbuffers::Offset<flatbuffers::String> id) {
@@ -870,6 +885,7 @@ struct ReferrableT : public flatbuffers::NativeTable {
 
 struct Referrable FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef ReferrableT NativeTableType;
+  typedef ReferrableBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return ReferrableTypeTable();
   }
@@ -899,6 +915,7 @@ struct Referrable FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct ReferrableBuilder {
+  typedef Referrable Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_id(uint64_t id) {
@@ -999,6 +1016,7 @@ struct MonsterT : public flatbuffers::NativeTable {
 /// an example documentation comment: monster object
 struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MonsterT NativeTableType;
+  typedef MonsterBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MonsterTypeTable();
   }
@@ -1486,6 +1504,7 @@ template<> inline const MyGame::Example2::Monster *Monster::any_unique_as<MyGame
 }
 
 struct MonsterBuilder {
+  typedef Monster Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_pos(const MyGame::Example::Vec3 *pos) {
@@ -1900,6 +1919,7 @@ struct TypeAliasesT : public flatbuffers::NativeTable {
 
 struct TypeAliases FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TypeAliasesT NativeTableType;
+  typedef TypeAliasesBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TypeAliasesTypeTable();
   }
@@ -2013,6 +2033,7 @@ struct TypeAliases FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct TypeAliasesBuilder {
+  typedef TypeAliases Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_i8(int8_t i8) {

tests/monster_extra_generated.h

@@ -9,6 +9,7 @@
 namespace MyGame {
 
 struct MonsterExtra;
+struct MonsterExtraBuilder;
 struct MonsterExtraT;
 
 bool operator==(const MonsterExtraT &lhs, const MonsterExtraT &rhs);
@@ -61,6 +62,7 @@ inline bool operator!=(const MonsterExtraT &lhs, const MonsterExtraT &rhs) {
 
 struct MonsterExtra FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MonsterExtraT NativeTableType;
+  typedef MonsterExtraBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MonsterExtraTypeTable();
   }
@@ -158,6 +160,7 @@ struct MonsterExtra FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct MonsterExtraBuilder {
+  typedef MonsterExtra Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_d0(double d0) {

tests/monster_test_generated.h

@@ -10,11 +10,13 @@
 namespace MyGame {
 
 struct InParentNamespace;
+struct InParentNamespaceBuilder;
 struct InParentNamespaceT;
 
 namespace Example2 {
 
 struct Monster;
+struct MonsterBuilder;
 struct MonsterT;
 
 }  // namespace Example2
@@ -24,6 +26,7 @@ namespace Example {
 struct Test;
 
 struct TestSimpleTableWithEnum;
+struct TestSimpleTableWithEnumBuilder;
 struct TestSimpleTableWithEnumT;
 
 struct Vec3;
@@ -31,15 +34,19 @@ struct Vec3;
 struct Ability;
 
 struct Stat;
+struct StatBuilder;
 struct StatT;
 
 struct Referrable;
+struct ReferrableBuilder;
 struct ReferrableT;
 
 struct Monster;
+struct MonsterBuilder;
 struct MonsterT;
 
 struct TypeAliases;
+struct TypeAliasesBuilder;
 struct TypeAliasesT;
 
 }  // namespace Example
@@ -774,6 +781,7 @@ inline bool operator!=(const InParentNamespaceT &lhs, const InParentNamespaceT &
 
 struct InParentNamespace FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef InParentNamespaceT NativeTableType;
+  typedef InParentNamespaceBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return InParentNamespaceTypeTable();
   }
@@ -787,6 +795,7 @@ struct InParentNamespace FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct InParentNamespaceBuilder {
+  typedef InParentNamespace Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   explicit InParentNamespaceBuilder(flatbuffers::FlatBufferBuilder &_fbb)
@@ -828,6 +837,7 @@ inline bool operator!=(const MonsterT &lhs, const MonsterT &rhs) {
 
 struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MonsterT NativeTableType;
+  typedef MonsterBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MonsterTypeTable();
   }
@@ -841,6 +851,7 @@ struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct MonsterBuilder {
+  typedef Monster Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   explicit MonsterBuilder(flatbuffers::FlatBufferBuilder &_fbb)
@@ -887,6 +898,7 @@ inline bool operator!=(const TestSimpleTableWithEnumT &lhs, const TestSimpleTabl
 
 struct TestSimpleTableWithEnum FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TestSimpleTableWithEnumT NativeTableType;
+  typedef TestSimpleTableWithEnumBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TestSimpleTableWithEnumTypeTable();
   }
@@ -910,6 +922,7 @@ struct TestSimpleTableWithEnum FLATBUFFERS_FINAL_CLASS : private flatbuffers::Ta
 };
 
 struct TestSimpleTableWithEnumBuilder {
+  typedef TestSimpleTableWithEnum Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_color(MyGame::Example::Color color) {
@@ -962,6 +975,7 @@ inline bool operator!=(const StatT &lhs, const StatT &rhs) {
 
 struct Stat FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef StatT NativeTableType;
+  typedef StatBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return StatTypeTable();
   }
@@ -1002,6 +1016,7 @@ struct Stat FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct StatBuilder {
+  typedef Stat Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_id(flatbuffers::Offset<flatbuffers::String> id) {
@@ -1072,6 +1087,7 @@ inline bool operator!=(const ReferrableT &lhs, const ReferrableT &rhs) {
 
 struct Referrable FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef ReferrableT NativeTableType;
+  typedef ReferrableBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return ReferrableTypeTable();
   }
@@ -1101,6 +1117,7 @@ struct Referrable FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct ReferrableBuilder {
+  typedef Referrable Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_id(uint64_t id) {
@@ -1255,6 +1272,7 @@ inline bool operator!=(const MonsterT &lhs, const MonsterT &rhs) {
 /// an example documentation comment: monster object
 struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MonsterT NativeTableType;
+  typedef MonsterBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MonsterTypeTable();
   }
@@ -1742,6 +1760,7 @@ template<> inline const MyGame::Example2::Monster *Monster::any_unique_as<MyGame
 }
 
 struct MonsterBuilder {
+  typedef Monster Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_pos(const MyGame::Example::Vec3 *pos) {
@@ -2177,6 +2196,7 @@ inline bool operator!=(const TypeAliasesT &lhs, const TypeAliasesT &rhs) {
 
 struct TypeAliases FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TypeAliasesT NativeTableType;
+  typedef TypeAliasesBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TypeAliasesTypeTable();
   }
@@ -2290,6 +2310,7 @@ struct TypeAliases FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct TypeAliasesBuilder {
+  typedef TypeAliases Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_i8(int8_t i8) {

tests/namespace_test/namespace_test1_generated.h

@@ -10,6 +10,7 @@ namespace NamespaceA {
 namespace NamespaceB {
 
 struct TableInNestedNS;
+struct TableInNestedNSBuilder;
 struct TableInNestedNST;
 
 struct StructInNestedNS;
@@ -118,6 +119,7 @@ inline bool operator!=(const TableInNestedNST &lhs, const TableInNestedNST &rhs)
 
 struct TableInNestedNS FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TableInNestedNST NativeTableType;
+  typedef TableInNestedNSBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TableInNestedNSTypeTable();
   }
@@ -141,6 +143,7 @@ struct TableInNestedNS FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct TableInNestedNSBuilder {
+  typedef TableInNestedNS Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_foo(int32_t foo) {

tests/namespace_test/namespace_test2_generated.h

@@ -9,6 +9,7 @@
 namespace NamespaceA {
 
 struct TableInFirstNS;
+struct TableInFirstNSBuilder;
 struct TableInFirstNST;
 
 }  // namespace NamespaceA
@@ -16,6 +17,7 @@ struct TableInFirstNST;
 namespace NamespaceC {
 
 struct TableInC;
+struct TableInCBuilder;
 struct TableInCT;
 
 }  // namespace NamespaceC
@@ -23,6 +25,7 @@ struct TableInCT;
 namespace NamespaceA {
 
 struct SecondTableInA;
+struct SecondTableInABuilder;
 struct SecondTableInAT;
 
 bool operator==(const TableInFirstNST &lhs, const TableInFirstNST &rhs);
@@ -78,6 +81,7 @@ inline bool operator!=(const TableInFirstNST &lhs, const TableInFirstNST &rhs) {
 
 struct TableInFirstNS FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TableInFirstNST NativeTableType;
+  typedef TableInFirstNSBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TableInFirstNSTypeTable();
   }
@@ -118,6 +122,7 @@ struct TableInFirstNS FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct TableInFirstNSBuilder {
+  typedef TableInFirstNS Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_foo_table(flatbuffers::Offset<NamespaceA::NamespaceB::TableInNestedNS> foo_table) {
@@ -180,6 +185,7 @@ inline bool operator!=(const TableInCT &lhs, const TableInCT &rhs) {
 
 struct TableInC FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef TableInCT NativeTableType;
+  typedef TableInCBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return TableInCTypeTable();
   }
@@ -213,6 +219,7 @@ struct TableInC FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct TableInCBuilder {
+  typedef TableInC Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_refer_to_a1(flatbuffers::Offset<NamespaceA::TableInFirstNS> refer_to_a1) {
@@ -268,6 +275,7 @@ inline bool operator!=(const SecondTableInAT &lhs, const SecondTableInAT &rhs) {
 
 struct SecondTableInA FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef SecondTableInAT NativeTableType;
+  typedef SecondTableInABuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return SecondTableInATypeTable();
   }
@@ -292,6 +300,7 @@ struct SecondTableInA FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct SecondTableInABuilder {
+  typedef SecondTableInA Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_refer_to_c(flatbuffers::Offset<NamespaceC::TableInC> refer_to_c) {

tests/native_type_test_generated.h

@@ -13,6 +13,7 @@ namespace Geometry {
 struct Vector3D;
 
 struct ApplicationData;
+struct ApplicationDataBuilder;
 struct ApplicationDataT;
 
 inline const flatbuffers::TypeTable *Vector3DTypeTable();
@@ -67,6 +68,7 @@ struct ApplicationDataT : public flatbuffers::NativeTable {
 
 struct ApplicationData FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef ApplicationDataT NativeTableType;
+  typedef ApplicationDataBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return ApplicationDataTypeTable();
   }
@@ -91,6 +93,7 @@ struct ApplicationData FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct ApplicationDataBuilder {
+  typedef ApplicationData Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_vectors(flatbuffers::Offset<flatbuffers::Vector<const Geometry::Vector3D *>> vectors) {

tests/union_vector/union_vector_generated.h

@@ -7,6 +7,7 @@
 #include "flatbuffers/flatbuffers.h"
 
 struct Attacker;
+struct AttackerBuilder;
 struct AttackerT;
 
 struct Rapunzel;
@@ -14,6 +15,7 @@ struct Rapunzel;
 struct BookReader;
 
 struct Movie;
+struct MovieBuilder;
 struct MovieT;
 
 bool operator==(const AttackerT &lhs, const AttackerT &rhs);
@@ -278,6 +280,7 @@ inline bool operator!=(const AttackerT &lhs, const AttackerT &rhs) {
 
 struct Attacker FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef AttackerT NativeTableType;
+  typedef AttackerBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return AttackerTypeTable();
   }
@@ -301,6 +304,7 @@ struct Attacker FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct AttackerBuilder {
+  typedef Attacker Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_sword_attack_damage(int32_t sword_attack_damage) {
@@ -349,6 +353,7 @@ inline bool operator!=(const MovieT &lhs, const MovieT &rhs) {
 
 struct Movie FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   typedef MovieT NativeTableType;
+  typedef MovieBuilder Builder;
   static const flatbuffers::TypeTable *MiniReflectTypeTable() {
     return MovieTypeTable();
   }
@@ -415,6 +420,7 @@ struct Movie FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
 };
 
 struct MovieBuilder {
+  typedef Movie Table;
   flatbuffers::FlatBufferBuilder &fbb_;
   flatbuffers::uoffset_t start_;
   void add_main_character_type(Character main_character_type) {