| /* |
| * Copyright 2014 Google Inc. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // This is a sandbox for modeling C++17 code generator. |
| // C++17 code generator: "flatc --cpp_std c++17". |
| // Warning: |
| // This is an experimental feature and could change at any time. |
| |
| #include "flatbuffers/flatbuffers.h" |
| #include "flatbuffers/flexbuffers.h" |
| #include "flatbuffers/idl.h" |
| #include "flatbuffers/minireflect.h" |
| #include "flatbuffers/registry.h" |
| #include "flatbuffers/util.h" |
| #include "test_assert.h" |
| |
| // Embed generated code into an isolated namespace. |
| namespace cpp17 { |
| #include "generated_cpp17/monster_test_generated.h" |
| } // namespace cpp17 |
| |
| namespace cpp11 { |
| #include "../monster_test_generated.h" |
| } // namespace cpp11 |
| |
| void CreateTableByTypeTest() { |
| flatbuffers::FlatBufferBuilder builder; |
| |
| // We will create an object of this type using only the type. |
| using type_to_create_t = cpp17::MyGame::Example::Stat; |
| |
| [&builder] { |
| auto id_str = builder.CreateString("my_id"); |
| auto table = type_to_create_t::Traits::Create(builder, id_str, 42, 7); |
| // Be sure that the correct return type was inferred. |
| static_assert( |
| std::is_same_v<decltype(table), flatbuffers::Offset<type_to_create_t>>); |
| builder.Finish(table); |
| }(); |
| |
| // Access it. |
| auto stat = |
| flatbuffers::GetRoot<type_to_create_t>(builder.GetBufferPointer()); |
| TEST_EQ_STR(stat->id()->c_str(), "my_id"); |
| TEST_EQ(stat->val(), 42); |
| TEST_EQ(stat->count(), 7); |
| } |
| |
| int FlatBufferCpp17Tests() { |
| CreateTableByTypeTest(); |
| return 0; |
| } |
| |
| int main(int /*argc*/, const char * /*argv*/[]) { |
| InitTestEngine(); |
| |
| FlatBufferCpp17Tests(); |
| |
| if (!testing_fails) { |
| TEST_OUTPUT_LINE("C++17: ALL TESTS PASSED"); |
| } else { |
| TEST_OUTPUT_LINE("C++17: %d FAILED TESTS", testing_fails); |
| } |
| return CloseTestEngine(); |
| } |