| 1304 | } |
| 1305 | |
| 1306 | CheckedError Parser::ParseAnyValue(Value &val, FieldDef *field, |
| 1307 | size_t parent_fieldn, |
| 1308 | const StructDef *parent_struct_def, |
| 1309 | size_t count, bool inside_vector) { |
| 1310 | switch (val.type.base_type) { |
| 1311 | case BASE_TYPE_UNION: { |
| 1312 | FLATBUFFERS_ASSERT(field); |
| 1313 | std::string constant; |
| 1314 | Vector<uint8_t> *vector_of_union_types = nullptr; |
| 1315 | // Find corresponding type field we may have already parsed. |
| 1316 | for (auto elem = field_stack_.rbegin() + count; |
| 1317 | elem != field_stack_.rbegin() + parent_fieldn + count; ++elem) { |
| 1318 | auto &type = elem->second->value.type; |
| 1319 | if (type.enum_def == val.type.enum_def) { |
| 1320 | if (inside_vector) { |
| 1321 | if (IsVector(type) && type.element == BASE_TYPE_UTYPE) { |
| 1322 | // Vector of union type field. |
| 1323 | uoffset_t offset; |
| 1324 | ECHECK(atot(elem->first.constant.c_str(), *this, &offset)); |
| 1325 | vector_of_union_types = reinterpret_cast<Vector<uint8_t> *>( |
| 1326 | builder_.GetCurrentBufferPointer() + builder_.GetSize() - |
| 1327 | offset); |
| 1328 | break; |
| 1329 | } |
| 1330 | } else { |
| 1331 | if (type.base_type == BASE_TYPE_UTYPE) { |
| 1332 | // Union type field. |
| 1333 | constant = elem->first.constant; |
| 1334 | break; |
| 1335 | } |
| 1336 | } |
| 1337 | } |
| 1338 | } |
| 1339 | if (constant.empty() && !inside_vector) { |
| 1340 | // We haven't seen the type field yet. Sadly a lot of JSON writers |
| 1341 | // output these in alphabetical order, meaning it comes after this |
| 1342 | // value. So we scan past the value to find it, then come back here. |
| 1343 | // We currently don't do this for vectors of unions because the |
| 1344 | // scanning/serialization logic would get very complicated. |
| 1345 | auto type_name = field->name + UnionTypeFieldSuffix(); |
| 1346 | FLATBUFFERS_ASSERT(parent_struct_def); |
| 1347 | auto type_field = parent_struct_def->fields.Lookup(type_name); |
| 1348 | FLATBUFFERS_ASSERT(type_field); // Guaranteed by ParseField(). |
| 1349 | // Remember where we are in the source file, so we can come back here. |
| 1350 | auto backup = *static_cast<ParserState *>(this); |
| 1351 | ECHECK(SkipAnyJsonValue()); // The table. |
| 1352 | ECHECK(ParseComma()); |
| 1353 | auto next_name = attribute_; |
| 1354 | if (Is(kTokenStringConstant)) { |
| 1355 | NEXT(); |
| 1356 | } else { |
| 1357 | EXPECT(kTokenIdentifier); |
| 1358 | } |
| 1359 | if (next_name == type_name) { |
| 1360 | EXPECT(':'); |
| 1361 | ParseDepthGuard depth_guard(this); |
| 1362 | ECHECK(depth_guard.Check()); |
| 1363 | Value type_val = type_field->value; |
nothing calls this directly
no test coverage detected