C++98 (stlport) support for core FlatBuffers and FlexBuffers.

* Added internal - limited - implementation of flatbuffers::unique_ptr
  for STLs that don't ship with std::unique_ptr.  In C++11 and beyond
  this is just an alias for std::unique_ptr.
* Aliased used type traits structs is_scalar is_floating_point is_unsigned
  into flatbuffers namespace so they can be replaced in C++98 implementations.
  Right now these point at stlport's TR1 implementations.
* Wrapped vector::data() in vector_data().
* Wrapped vector::emplace_back() in vector_emplace_back().
* Wrapper string::back() in string_back().
* Added variants of FlatBufferBuilder::CreateVector() and
  FlatBufferBuilder::CreateVectorOfStructs() that allow the use of plain
  function pointers.
  Generated code has also been modified to use plain functions to build objects
  rather than std::function() so all generated code will work in C++98
  applications.
* Added flexbuffers::Builder::Vector(), flexbuffers::Builder::TypedVector()
  and flexbuffers::Builder::Map() methods that allow the use of plain function
  pointers.
* Changed Parser to internally use plain function pointers when parsing table
  and vector delimiters.
* Added specializations of NumToString() for 64-bit types that aren't supported
  by stringstream in stlport.
* Overloaded numeric_limits for 64-bit types not supported by stlport.
* Replaced build_apk.sh (which was broken by deprecation of the
  "android" tool in the Android SDK) with build.gradle and the
  appropriate gradle wrapper to build an APK.
* Switched Android build to build against all STL variants.
* Updated travis configuration to build Android test and sample.

Tested:
* Verified all tests continue to work on Linux, OSX and Android.
* Verified Travis build is green.

Change-Id: I9e634363793f85b9f141d21454b10686020a2065
This commit is contained in:
Stewart Miles
2017-07-13 06:27:39 -07:00
parent 2e2063cbeb
commit a892322203
41 changed files with 1445 additions and 1246 deletions

View File

@@ -137,6 +137,7 @@ struct AnyUnion {
void Reset();
#ifndef FLATBUFFERS_CPP98_STL
template <typename T>
void Set(T&& val) {
Reset();
@@ -145,6 +146,7 @@ struct AnyUnion {
value = new T(std::forward<T>(val));
}
}
#endif // FLATBUFFERS_CPP98_STL
static void *UnPack(const void *obj, Any type, const flatbuffers::resolver_function_t *resolver);
flatbuffers::Offset<void> Pack(flatbuffers::FlatBufferBuilder &_fbb, const flatbuffers::rehasher_function_t *_rehasher = nullptr) const;
@@ -516,7 +518,7 @@ flatbuffers::Offset<Stat> CreateStat(flatbuffers::FlatBufferBuilder &_fbb, const
struct MonsterT : public flatbuffers::NativeTable {
typedef Monster TableType;
std::unique_ptr<Vec3> pos;
flatbuffers::unique_ptr<Vec3> pos;
int16_t mana;
int16_t hp;
std::string name;
@@ -525,10 +527,10 @@ struct MonsterT : public flatbuffers::NativeTable {
AnyUnion test;
std::vector<Test> test4;
std::vector<std::string> testarrayofstring;
std::vector<std::unique_ptr<MonsterT>> testarrayoftables;
std::unique_ptr<MonsterT> enemy;
std::vector<flatbuffers::unique_ptr<MonsterT>> testarrayoftables;
flatbuffers::unique_ptr<MonsterT> enemy;
std::vector<uint8_t> testnestedflatbuffer;
std::unique_ptr<StatT> testempty;
flatbuffers::unique_ptr<StatT> testempty;
bool testbool;
int32_t testhashs32_fnv1;
uint32_t testhashu32_fnv1;
@@ -1134,6 +1136,7 @@ inline flatbuffers::Offset<Monster> Monster::Pack(flatbuffers::FlatBufferBuilder
inline flatbuffers::Offset<Monster> CreateMonster(flatbuffers::FlatBufferBuilder &_fbb, const MonsterT *_o, const flatbuffers::rehasher_function_t *_rehasher) {
(void)_rehasher;
(void)_o;
struct _VectorArgs { flatbuffers::FlatBufferBuilder *__fbb; const MonsterT* __o; const flatbuffers::rehasher_function_t *__rehasher; } _va = { &_fbb, _o, _rehasher}; (void)_va;
return MyGame::Example2::CreateMonster(
_fbb);
}
@@ -1161,6 +1164,7 @@ inline flatbuffers::Offset<TestSimpleTableWithEnum> TestSimpleTableWithEnum::Pac
inline flatbuffers::Offset<TestSimpleTableWithEnum> CreateTestSimpleTableWithEnum(flatbuffers::FlatBufferBuilder &_fbb, const TestSimpleTableWithEnumT *_o, const flatbuffers::rehasher_function_t *_rehasher) {
(void)_rehasher;
(void)_o;
struct _VectorArgs { flatbuffers::FlatBufferBuilder *__fbb; const TestSimpleTableWithEnumT* __o; const flatbuffers::rehasher_function_t *__rehasher; } _va = { &_fbb, _o, _rehasher}; (void)_va;
auto _color = _o->color;
return MyGame::Example::CreateTestSimpleTableWithEnum(
_fbb,
@@ -1188,6 +1192,7 @@ inline flatbuffers::Offset<Stat> Stat::Pack(flatbuffers::FlatBufferBuilder &_fbb
inline flatbuffers::Offset<Stat> CreateStat(flatbuffers::FlatBufferBuilder &_fbb, const StatT *_o, const flatbuffers::rehasher_function_t *_rehasher) {
(void)_rehasher;
(void)_o;
struct _VectorArgs { flatbuffers::FlatBufferBuilder *__fbb; const StatT* __o; const flatbuffers::rehasher_function_t *__rehasher; } _va = { &_fbb, _o, _rehasher}; (void)_va;
auto _id = _o->id.size() ? _fbb.CreateString(_o->id) : 0;
auto _val = _o->val;
auto _count = _o->count;
@@ -1207,7 +1212,7 @@ inline MonsterT *Monster::UnPack(const flatbuffers::resolver_function_t *_resolv
inline void Monster::UnPackTo(MonsterT *_o, const flatbuffers::resolver_function_t *_resolver) const {
(void)_o;
(void)_resolver;
{ auto _e = pos(); if (_e) _o->pos = std::unique_ptr<Vec3>(new Vec3(*_e)); };
{ auto _e = pos(); if (_e) _o->pos = flatbuffers::unique_ptr<Vec3>(new Vec3(*_e)); };
{ auto _e = mana(); _o->mana = _e; };
{ auto _e = hp(); _o->hp = _e; };
{ auto _e = name(); if (_e) _o->name = _e->str(); };
@@ -1217,10 +1222,10 @@ inline void Monster::UnPackTo(MonsterT *_o, const flatbuffers::resolver_function
{ auto _e = test(); if (_e) _o->test.value = 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<MonsterT>(_e->Get(_i)->UnPack(_resolver)); } } };
{ auto _e = enemy(); if (_e) _o->enemy = std::unique_ptr<MonsterT>(_e->UnPack(_resolver)); };
{ 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<MonsterT>(_e->Get(_i)->UnPack(_resolver)); } } };
{ auto _e = enemy(); if (_e) _o->enemy = flatbuffers::unique_ptr<MonsterT>(_e->UnPack(_resolver)); };
{ auto _e = testnestedflatbuffer(); if (_e) { _o->testnestedflatbuffer.resize(_e->size()); for (flatbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { _o->testnestedflatbuffer[_i] = _e->Get(_i); } } };
{ auto _e = testempty(); if (_e) _o->testempty = std::unique_ptr<StatT>(_e->UnPack(_resolver)); };
{ auto _e = testempty(); if (_e) _o->testempty = flatbuffers::unique_ptr<StatT>(_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; };
@@ -1246,6 +1251,7 @@ inline flatbuffers::Offset<Monster> Monster::Pack(flatbuffers::FlatBufferBuilder
inline flatbuffers::Offset<Monster> CreateMonster(flatbuffers::FlatBufferBuilder &_fbb, const MonsterT *_o, const flatbuffers::rehasher_function_t *_rehasher) {
(void)_rehasher;
(void)_o;
struct _VectorArgs { flatbuffers::FlatBufferBuilder *__fbb; const MonsterT* __o; const flatbuffers::rehasher_function_t *__rehasher; } _va = { &_fbb, _o, _rehasher}; (void)_va;
auto _pos = _o->pos ? _o->pos.get() : 0;
auto _mana = _o->mana;
auto _hp = _o->hp;
@@ -1256,7 +1262,7 @@ inline flatbuffers::Offset<Monster> CreateMonster(flatbuffers::FlatBufferBuilder
auto _test = _o->test.Pack(_fbb);
auto _test4 = _o->test4.size() ? _fbb.CreateVectorOfStructs(_o->test4) : 0;
auto _testarrayofstring = _o->testarrayofstring.size() ? _fbb.CreateVectorOfStrings(_o->testarrayofstring) : 0;
auto _testarrayoftables = _o->testarrayoftables.size() ? _fbb.CreateVector<flatbuffers::Offset<Monster>>(_o->testarrayoftables.size(), [&](size_t i) { return CreateMonster(_fbb, _o->testarrayoftables[i].get(), _rehasher); }) : 0;
auto _testarrayoftables = _o->testarrayoftables.size() ? _fbb.CreateVector<flatbuffers::Offset<Monster>> (_o->testarrayoftables.size(), [](size_t i, _VectorArgs *__va) { return CreateMonster(*__va->__fbb, __va->__o->testarrayoftables[i].get(), __va->__rehasher); }, &_va ) : 0;
auto _enemy = _o->enemy ? CreateMonster(_fbb, _o->enemy.get(), _rehasher) : 0;
auto _testnestedflatbuffer = _o->testnestedflatbuffer.size() ? _fbb.CreateVector(_o->testnestedflatbuffer) : 0;
auto _testempty = _o->testempty ? CreateStat(_fbb, _o->testempty.get(), _rehasher) : 0;
@@ -1452,10 +1458,10 @@ inline void FinishMonsterBuffer(
fbb.Finish(root, MonsterIdentifier());
}
inline std::unique_ptr<MonsterT> UnPackMonster(
inline flatbuffers::unique_ptr<MonsterT> UnPackMonster(
const void *buf,
const flatbuffers::resolver_function_t *res = nullptr) {
return std::unique_ptr<MonsterT>(GetMonster(buf)->UnPack(res));
return flatbuffers::unique_ptr<MonsterT>(GetMonster(buf)->UnPack(res));
}
} // namespace Example