From 909ce970ae796f90f69511f071f5753445bf9887 Mon Sep 17 00:00:00 2001 From: RWauson <80281741+RWauson@users.noreply.github.com> Date: Thu, 5 Aug 2021 12:40:03 -0600 Subject: [PATCH] [C++] Use UnPackTo instead of UnPack if pointer exists (#6725) Causes generated code to check for existing pointers in an object (when using the object based api) and use UnPackTo(existingPointer) rather than just using UnPack() to replace the pointer. This is a performance issue when unpacking to existing objects when using large buffer fields (e.g. image frames) Co-authored-by: RobWauson --- samples/monster_generated.h | 2 +- src/idl_gen_cpp.cpp | 19 +++++++++++++++++++ .../generated_cpp17/monster_test_generated.h | 14 +++++++------- tests/monster_test_generated.h | 14 +++++++------- .../namespace_test2_generated.h | 8 ++++---- 5 files changed, 38 insertions(+), 19 deletions(-) diff --git a/samples/monster_generated.h b/samples/monster_generated.h index 74cb96253..a2a8308bd 100644 --- a/samples/monster_generated.h +++ b/samples/monster_generated.h @@ -564,7 +564,7 @@ inline void Monster::UnPackTo(MonsterT *_o, const flatbuffers::resolver_function { auto _e = name(); if (_e) _o->name = _e->str(); } { auto _e = inventory(); if (_e) { _o->inventory.resize(_e->size()); std::copy(_e->begin(), _e->end(), _o->inventory.begin()); } } { auto _e = color(); _o->color = _e; } - { auto _e = weapons(); if (_e) { _o->weapons.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->weapons[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = weapons(); if (_e) { _o->weapons.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->weapons[_i]) { _e->Get(_i)->UnPackTo(_o->weapons[_i].get(), _resolver); } else { _o->weapons[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } { auto _e = equipped_type(); _o->equipped.type = _e; } { auto _e = equipped(); if (_e) _o->equipped.value = MyGame::Sample::EquipmentUnion::UnPack(_e, equipped_type(), _resolver); } { auto _e = path(); if (_e) { _o->path.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->path[_i] = *_e->Get(_i); } } } diff --git a/src/idl_gen_cpp.cpp b/src/idl_gen_cpp.cpp index 019845db4..455637127 100644 --- a/src/idl_gen_cpp.cpp +++ b/src/idl_gen_cpp.cpp @@ -2767,9 +2767,19 @@ class CppGenerator : public BaseGenerator { code += "/* else do nothing */"; } } else { + const bool is_pointer = + field.value.type.VectorType().base_type == BASE_TYPE_STRUCT && + !IsStruct(field.value.type.VectorType()); + if (is_pointer) { + code += "if(_o->" + name + "[_i]" + ") { "; + code += indexing + "->UnPackTo(_o->" + name + + "[_i].get(), _resolver);"; + code += " } else { "; + } code += "_o->" + name + "[_i]" + access + " = "; code += GenUnpackVal(field.value.type.VectorType(), indexing, true, field); + if (is_pointer) { code += "; }"; } } code += "; } }"; } @@ -2816,8 +2826,17 @@ class CppGenerator : public BaseGenerator { } else { // Generate code for assigning the value, of the form: // _o->field = value; + const bool is_pointer = + field.value.type.base_type == BASE_TYPE_STRUCT && + !IsStruct(field.value.type); + if (is_pointer) { + code += "{ if(_o->" + Name(field) + ") { "; + code += "_e->UnPackTo(_o->" + Name(field) + ".get(), _resolver);"; + code += " } else { "; + } code += "_o->" + Name(field) + " = "; code += GenUnpackVal(field.value.type, "_e", false, field) + ";"; + if (is_pointer) { code += " } }"; } } break; } diff --git a/tests/cpp17/generated_cpp17/monster_test_generated.h b/tests/cpp17/generated_cpp17/monster_test_generated.h index 06477eab3..c95be273f 100644 --- a/tests/cpp17/generated_cpp17/monster_test_generated.h +++ b/tests/cpp17/generated_cpp17/monster_test_generated.h @@ -2686,10 +2686,10 @@ inline void Monster::UnPackTo(MonsterT *_o, const flatbuffers::resolver_function { auto _e = test(); if (_e) _o->test.value = MyGame::Example::AnyUnion::UnPack(_e, test_type(), _resolver); } { auto _e = test4(); if (_e) { _o->test4.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->test4[_i] = *_e->Get(_i); } } } { auto _e = testarrayofstring(); if (_e) { _o->testarrayofstring.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->testarrayofstring[_i] = _e->Get(_i)->str(); } } } - { auto _e = testarrayoftables(); if (_e) { _o->testarrayoftables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->testarrayoftables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } - { auto _e = enemy(); if (_e) _o->enemy = std::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = testarrayoftables(); if (_e) { _o->testarrayoftables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->testarrayoftables[_i]) { _e->Get(_i)->UnPackTo(_o->testarrayoftables[_i].get(), _resolver); } else { _o->testarrayoftables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } + { auto _e = enemy(); if (_e) { if(_o->enemy) { _e->UnPackTo(_o->enemy.get(), _resolver); } else { _o->enemy = std::unique_ptr(_e->UnPack(_resolver)); } } } { auto _e = testnestedflatbuffer(); if (_e) { _o->testnestedflatbuffer.resize(_e->size()); std::copy(_e->begin(), _e->end(), _o->testnestedflatbuffer.begin()); } } - { auto _e = testempty(); if (_e) _o->testempty = std::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = testempty(); if (_e) { if(_o->testempty) { _e->UnPackTo(_o->testempty.get(), _resolver); } else { _o->testempty = std::unique_ptr(_e->UnPack(_resolver)); } } } { auto _e = testbool(); _o->testbool = _e; } { auto _e = testhashs32_fnv1(); _o->testhashs32_fnv1 = _e; } { auto _e = testhashu32_fnv1(); _o->testhashu32_fnv1 = _e; } @@ -2710,13 +2710,13 @@ if (_resolver) (*_resolver)(reinterpret_cast(&_o->testhashu32_fnv1a), s { auto _e = test5(); if (_e) { _o->test5.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->test5[_i] = *_e->Get(_i); } } } { auto _e = vector_of_longs(); if (_e) { _o->vector_of_longs.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_longs[_i] = _e->Get(_i); } } } { auto _e = vector_of_doubles(); if (_e) { _o->vector_of_doubles.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_doubles[_i] = _e->Get(_i); } } } - { auto _e = parent_namespace_test(); if (_e) _o->parent_namespace_test = std::unique_ptr(_e->UnPack(_resolver)); } - { auto _e = vector_of_referrables(); if (_e) { _o->vector_of_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_referrables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = parent_namespace_test(); if (_e) { if(_o->parent_namespace_test) { _e->UnPackTo(_o->parent_namespace_test.get(), _resolver); } else { _o->parent_namespace_test = std::unique_ptr(_e->UnPack(_resolver)); } } } + { auto _e = vector_of_referrables(); if (_e) { _o->vector_of_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->vector_of_referrables[_i]) { _e->Get(_i)->UnPackTo(_o->vector_of_referrables[_i].get(), _resolver); } else { _o->vector_of_referrables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } { auto _e = single_weak_reference(); //scalar resolver, naked if (_resolver) (*_resolver)(reinterpret_cast(&_o->single_weak_reference), static_cast(_e)); else _o->single_weak_reference = nullptr; } { auto _e = vector_of_weak_references(); if (_e) { _o->vector_of_weak_references.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { //vector resolver, naked if (_resolver) (*_resolver)(reinterpret_cast(&_o->vector_of_weak_references[_i]), static_cast(_e->Get(_i))); else _o->vector_of_weak_references[_i] = nullptr; } } } - { auto _e = vector_of_strong_referrables(); if (_e) { _o->vector_of_strong_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_strong_referrables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = vector_of_strong_referrables(); if (_e) { _o->vector_of_strong_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->vector_of_strong_referrables[_i]) { _e->Get(_i)->UnPackTo(_o->vector_of_strong_referrables[_i].get(), _resolver); } else { _o->vector_of_strong_referrables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } { auto _e = co_owning_reference(); //scalar resolver, naked if (_resolver) (*_resolver)(reinterpret_cast(&_o->co_owning_reference), static_cast(_e)); else _o->co_owning_reference = nullptr; } { auto _e = vector_of_co_owning_references(); if (_e) { _o->vector_of_co_owning_references.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { //vector resolver, default_ptr_type @@ -2732,7 +2732,7 @@ if (_resolver) (*_resolver)(reinterpret_cast(&_o->vector_of_non_owning_ { auto _e = vector_of_enums(); if (_e) { _o->vector_of_enums.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_enums[_i] = static_cast(_e->Get(_i)); } } } { auto _e = signed_enum(); _o->signed_enum = _e; } { auto _e = testrequirednestedflatbuffer(); if (_e) { _o->testrequirednestedflatbuffer.resize(_e->size()); std::copy(_e->begin(), _e->end(), _o->testrequirednestedflatbuffer.begin()); } } - { auto _e = scalar_key_sorted_tables(); if (_e) { _o->scalar_key_sorted_tables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->scalar_key_sorted_tables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = scalar_key_sorted_tables(); if (_e) { _o->scalar_key_sorted_tables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->scalar_key_sorted_tables[_i]) { _e->Get(_i)->UnPackTo(_o->scalar_key_sorted_tables[_i].get(), _resolver); } else { _o->scalar_key_sorted_tables[_i] = std::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } } inline flatbuffers::Offset Monster::Pack(flatbuffers::FlatBufferBuilder &_fbb, const MonsterT* _o, const flatbuffers::rehasher_function_t *_rehasher) { diff --git a/tests/monster_test_generated.h b/tests/monster_test_generated.h index 1a887aabc..575bff25d 100644 --- a/tests/monster_test_generated.h +++ b/tests/monster_test_generated.h @@ -2635,10 +2635,10 @@ inline void Monster::UnPackTo(MonsterT *_o, const flatbuffers::resolver_function { auto _e = test(); if (_e) _o->test.value = MyGame::Example::AnyUnion::UnPack(_e, test_type(), _resolver); } { auto _e = test4(); if (_e) { _o->test4.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->test4[_i] = *_e->Get(_i); } } } { auto _e = testarrayofstring(); if (_e) { _o->testarrayofstring.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->testarrayofstring[_i] = _e->Get(_i)->str(); } } } - { auto _e = testarrayoftables(); if (_e) { _o->testarrayoftables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->testarrayoftables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } - { auto _e = enemy(); if (_e) _o->enemy = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = testarrayoftables(); if (_e) { _o->testarrayoftables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->testarrayoftables[_i]) { _e->Get(_i)->UnPackTo(_o->testarrayoftables[_i].get(), _resolver); } else { _o->testarrayoftables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } + { auto _e = enemy(); if (_e) { if(_o->enemy) { _e->UnPackTo(_o->enemy.get(), _resolver); } else { _o->enemy = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } { auto _e = testnestedflatbuffer(); if (_e) { _o->testnestedflatbuffer.resize(_e->size()); std::copy(_e->begin(), _e->end(), _o->testnestedflatbuffer.begin()); } } - { auto _e = testempty(); if (_e) _o->testempty = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = testempty(); if (_e) { if(_o->testempty) { _e->UnPackTo(_o->testempty.get(), _resolver); } else { _o->testempty = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } { auto _e = testbool(); _o->testbool = _e; } { auto _e = testhashs32_fnv1(); _o->testhashs32_fnv1 = _e; } { auto _e = testhashu32_fnv1(); _o->testhashu32_fnv1 = _e; } @@ -2659,13 +2659,13 @@ if (_resolver) (*_resolver)(reinterpret_cast(&_o->testhashu32_fnv1a), s { auto _e = test5(); if (_e) { _o->test5.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->test5[_i] = *_e->Get(_i); } } } { auto _e = vector_of_longs(); if (_e) { _o->vector_of_longs.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_longs[_i] = _e->Get(_i); } } } { auto _e = vector_of_doubles(); if (_e) { _o->vector_of_doubles.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_doubles[_i] = _e->Get(_i); } } } - { auto _e = parent_namespace_test(); if (_e) _o->parent_namespace_test = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } - { auto _e = vector_of_referrables(); if (_e) { _o->vector_of_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_referrables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = parent_namespace_test(); if (_e) { if(_o->parent_namespace_test) { _e->UnPackTo(_o->parent_namespace_test.get(), _resolver); } else { _o->parent_namespace_test = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } + { auto _e = vector_of_referrables(); if (_e) { _o->vector_of_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->vector_of_referrables[_i]) { _e->Get(_i)->UnPackTo(_o->vector_of_referrables[_i].get(), _resolver); } else { _o->vector_of_referrables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } { auto _e = single_weak_reference(); //scalar resolver, naked if (_resolver) (*_resolver)(reinterpret_cast(&_o->single_weak_reference), static_cast(_e)); else _o->single_weak_reference = nullptr; } { auto _e = vector_of_weak_references(); if (_e) { _o->vector_of_weak_references.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { //vector resolver, naked if (_resolver) (*_resolver)(reinterpret_cast(&_o->vector_of_weak_references[_i]), static_cast(_e->Get(_i))); else _o->vector_of_weak_references[_i] = nullptr; } } } - { auto _e = vector_of_strong_referrables(); if (_e) { _o->vector_of_strong_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_strong_referrables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = vector_of_strong_referrables(); if (_e) { _o->vector_of_strong_referrables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->vector_of_strong_referrables[_i]) { _e->Get(_i)->UnPackTo(_o->vector_of_strong_referrables[_i].get(), _resolver); } else { _o->vector_of_strong_referrables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } { auto _e = co_owning_reference(); //scalar resolver, naked if (_resolver) (*_resolver)(reinterpret_cast(&_o->co_owning_reference), static_cast(_e)); else _o->co_owning_reference = nullptr; } { auto _e = vector_of_co_owning_references(); if (_e) { _o->vector_of_co_owning_references.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { //vector resolver, default_ptr_type @@ -2681,7 +2681,7 @@ if (_resolver) (*_resolver)(reinterpret_cast(&_o->vector_of_non_owning_ { auto _e = vector_of_enums(); if (_e) { _o->vector_of_enums.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->vector_of_enums[_i] = static_cast(_e->Get(_i)); } } } { auto _e = signed_enum(); _o->signed_enum = _e; } { auto _e = testrequirednestedflatbuffer(); if (_e) { _o->testrequirednestedflatbuffer.resize(_e->size()); std::copy(_e->begin(), _e->end(), _o->testrequirednestedflatbuffer.begin()); } } - { auto _e = scalar_key_sorted_tables(); if (_e) { _o->scalar_key_sorted_tables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->scalar_key_sorted_tables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); } } } + { auto _e = scalar_key_sorted_tables(); if (_e) { _o->scalar_key_sorted_tables.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->scalar_key_sorted_tables[_i]) { _e->Get(_i)->UnPackTo(_o->scalar_key_sorted_tables[_i].get(), _resolver); } else { _o->scalar_key_sorted_tables[_i] = flatbuffers::unique_ptr(_e->Get(_i)->UnPack(_resolver)); }; } } } } inline flatbuffers::Offset Monster::Pack(flatbuffers::FlatBufferBuilder &_fbb, const MonsterT* _o, const flatbuffers::rehasher_function_t *_rehasher) { diff --git a/tests/namespace_test/namespace_test2_generated.h b/tests/namespace_test/namespace_test2_generated.h index b53bc1517..8db01254b 100644 --- a/tests/namespace_test/namespace_test2_generated.h +++ b/tests/namespace_test/namespace_test2_generated.h @@ -359,7 +359,7 @@ inline TableInFirstNST *TableInFirstNS::UnPack(const flatbuffers::resolver_funct inline void TableInFirstNS::UnPackTo(TableInFirstNST *_o, const flatbuffers::resolver_function_t *_resolver) const { (void)_o; (void)_resolver; - { auto _e = foo_table(); if (_e) _o->foo_table = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = foo_table(); if (_e) { if(_o->foo_table) { _e->UnPackTo(_o->foo_table.get(), _resolver); } else { _o->foo_table = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } { auto _e = foo_enum(); _o->foo_enum = _e; } { auto _e = foo_union_type(); _o->foo_union.type = _e; } { auto _e = foo_union(); if (_e) _o->foo_union.value = NamespaceA::NamespaceB::UnionInNestedNSUnion::UnPack(_e, foo_union_type(), _resolver); } @@ -413,8 +413,8 @@ inline TableInCT *TableInC::UnPack(const flatbuffers::resolver_function_t *_reso inline void TableInC::UnPackTo(TableInCT *_o, const flatbuffers::resolver_function_t *_resolver) const { (void)_o; (void)_resolver; - { auto _e = refer_to_a1(); if (_e) _o->refer_to_a1 = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } - { auto _e = refer_to_a2(); if (_e) _o->refer_to_a2 = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = refer_to_a1(); if (_e) { if(_o->refer_to_a1) { _e->UnPackTo(_o->refer_to_a1.get(), _resolver); } else { _o->refer_to_a1 = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } + { auto _e = refer_to_a2(); if (_e) { if(_o->refer_to_a2) { _e->UnPackTo(_o->refer_to_a2.get(), _resolver); } else { _o->refer_to_a2 = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } } inline flatbuffers::Offset TableInC::Pack(flatbuffers::FlatBufferBuilder &_fbb, const TableInCT* _o, const flatbuffers::rehasher_function_t *_rehasher) { @@ -457,7 +457,7 @@ inline SecondTableInAT *SecondTableInA::UnPack(const flatbuffers::resolver_funct inline void SecondTableInA::UnPackTo(SecondTableInAT *_o, const flatbuffers::resolver_function_t *_resolver) const { (void)_o; (void)_resolver; - { auto _e = refer_to_c(); if (_e) _o->refer_to_c = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } + { auto _e = refer_to_c(); if (_e) { if(_o->refer_to_c) { _e->UnPackTo(_o->refer_to_c.get(), _resolver); } else { _o->refer_to_c = flatbuffers::unique_ptr(_e->UnPack(_resolver)); } } } } inline flatbuffers::Offset SecondTableInA::Pack(flatbuffers::FlatBufferBuilder &_fbb, const SecondTableInAT* _o, const flatbuffers::rehasher_function_t *_rehasher) {