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Add flatc '--cpp_std' switch (#5656)

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* Add flatc '--cpp_std' switch and sandbox for C++17 code generator

- Added 'flac --cpp_std legacy' for compatibility with old compilers (VS2010);
- Added experimental switch 'flac --cpp_std c++17' for future development;
- Added C++17 sandbox test_cpp17.cpp;
- C++ code generator generates enums with explicit underlying type to avoid problems with the forward and backward schema compatibility;
- Adjusted CMakeLists.txt, CI and generate code scripts to support of introduced '--cpp_std';

* Fix --cpp_std values: c++0x, c++11, c++17

* Add 'cpp::CppStandard' enum

* Add testing engine into test_cpp17

* Rebase to upstream/master

* Set default '--cpp-std C++0x'

* Fix code generation (--cpp_std C++11) in CMakeLists.txt

- Fix dependency declaration of grpctest target

* Revert --cpp-std for the tests from explicit C++11 to flatc default value (C++0x)
This commit is contained in:
Vladimir Glavnyy
2019-12-24 03:13:48 +07:00
committed by Wouter van Oortmerssen
parent 3e8f15df90
commit 44bf719883
41 changed files with 4363 additions and 254 deletions
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17
tests/test_builder.cpp
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@@ -5,11 +5,6 @@
using namespace MyGame::Example;
const std::string m1_name = "Cyberdemon";
const Color m1_color = Color_Red;
const std::string m2_name = "Imp";
const Color m2_color = Color_Green;
struct OwnedAllocator : public flatbuffers::DefaultAllocator {};
class TestHeapBuilder : public flatbuffers::FlatBufferBuilder {
@@ -88,14 +83,14 @@ struct GrpcLikeMessageBuilder : private AllocatorMember,
flatbuffers::Offset<Monster> populate1(
flatbuffers::FlatBufferBuilder &builder) {
auto name_offset = builder.CreateString(m1_name);
return CreateMonster(builder, nullptr, 0, 0, name_offset, 0, m1_color);
auto name_offset = builder.CreateString(m1_name());
return CreateMonster(builder, nullptr, 0, 0, name_offset, 0, m1_color());
}
flatbuffers::Offset<Monster> populate2(
flatbuffers::FlatBufferBuilder &builder) {
auto name_offset = builder.CreateString(m2_name);
return CreateMonster(builder, nullptr, 0, 0, name_offset, 0, m2_color);
auto name_offset = builder.CreateString(m2_name());
return CreateMonster(builder, nullptr, 0, 0, name_offset, 0, m2_color());
}
uint8_t *release_raw_base(flatbuffers::FlatBufferBuilder &fbb, size_t &size,
@@ -158,3 +153,7 @@ void FlatBufferBuilderTest() {
BuilderReuseTests<GrpcLikeMessageBuilder, GrpcLikeMessageBuilder>::run_tests(
TestSelector(tests, tests + 4));
}
// Link-time check using pointer type.
void CheckTestGeneratedIsValid(const MyGame::Example::Color&)
{}