Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. All rights reserved. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | // independent from idl_parser, since this code is not needed for most clients |
| 18 | |
| 19 | #include "flatbuffers/code_generators.h" |
| 20 | #include "flatbuffers/flatbuffers.h" |
| 21 | #include "flatbuffers/idl.h" |
| 22 | #include "flatbuffers/util.h" |
| 23 | |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 24 | namespace flatbuffers { |
| 25 | namespace java { |
| 26 | |
| 27 | static TypedFloatConstantGenerator JavaFloatGen("Double.", "Float.", "NaN", |
| 28 | "POSITIVE_INFINITY", |
| 29 | "NEGATIVE_INFINITY"); |
| 30 | |
| 31 | static CommentConfig comment_config = { |
| 32 | "/**", |
| 33 | " *", |
| 34 | " */", |
| 35 | }; |
| 36 | |
| 37 | class JavaGenerator : public BaseGenerator { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 38 | struct FieldArrayLength { |
| 39 | std::string name; |
| 40 | int length; |
| 41 | }; |
| 42 | |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 43 | public: |
| 44 | JavaGenerator(const Parser &parser, const std::string &path, |
| 45 | const std::string &file_name) |
| 46 | : BaseGenerator(parser, path, file_name, "", ".", "java"), |
| 47 | cur_name_space_(nullptr) {} |
| 48 | |
| 49 | JavaGenerator &operator=(const JavaGenerator &); |
| 50 | bool generate() { |
| 51 | std::string one_file_code; |
| 52 | cur_name_space_ = parser_.current_namespace_; |
| 53 | |
| 54 | for (auto it = parser_.enums_.vec.begin(); it != parser_.enums_.vec.end(); |
| 55 | ++it) { |
| 56 | std::string enumcode; |
| 57 | auto &enum_def = **it; |
| 58 | if (!parser_.opts.one_file) cur_name_space_ = enum_def.defined_namespace; |
| 59 | GenEnum(enum_def, &enumcode); |
| 60 | if (parser_.opts.one_file) { |
| 61 | one_file_code += enumcode; |
| 62 | } else { |
| 63 | if (!SaveType(enum_def.name, *enum_def.defined_namespace, enumcode, |
| 64 | /* needs_includes= */ false)) |
| 65 | return false; |
| 66 | } |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 67 | |
| 68 | if (parser_.opts.generate_object_based_api && enum_def.is_union) { |
| 69 | enumcode = ""; |
| 70 | GenEnum_ObjectAPI(enum_def, &enumcode, parser_.opts); |
| 71 | auto class_name = enum_def.name + "Union"; |
| 72 | if (parser_.opts.one_file) { |
| 73 | one_file_code += enumcode; |
| 74 | } else { |
| 75 | if (!SaveType(class_name, *enum_def.defined_namespace, enumcode, |
| 76 | /* needs_includes= */ false)) |
| 77 | return false; |
| 78 | } |
| 79 | } |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | for (auto it = parser_.structs_.vec.begin(); |
| 83 | it != parser_.structs_.vec.end(); ++it) { |
| 84 | std::string declcode; |
| 85 | auto &struct_def = **it; |
| 86 | if (!parser_.opts.one_file) |
| 87 | cur_name_space_ = struct_def.defined_namespace; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 88 | GenStruct(struct_def, &declcode, parser_.opts); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 89 | if (parser_.opts.one_file) { |
| 90 | one_file_code += declcode; |
| 91 | } else { |
| 92 | if (!SaveType(struct_def.name, *struct_def.defined_namespace, declcode, |
| 93 | /* needs_includes= */ true)) |
| 94 | return false; |
| 95 | } |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 96 | |
| 97 | if (parser_.opts.generate_object_based_api) { |
| 98 | declcode = ""; |
| 99 | GenStruct_ObjectAPI(struct_def, &declcode, parser_.opts); |
| 100 | auto class_name = GenTypeName_ObjectAPI(struct_def.name, parser_.opts); |
| 101 | if (parser_.opts.one_file) { |
| 102 | one_file_code += declcode; |
| 103 | } else { |
| 104 | if (!SaveType(class_name, *struct_def.defined_namespace, declcode, |
| 105 | /* needs_includes= */ true)) |
| 106 | return false; |
| 107 | } |
| 108 | } |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | if (parser_.opts.one_file) { |
| 112 | return SaveType(file_name_, *parser_.current_namespace_, one_file_code, |
| 113 | /* needs_includes= */ true); |
| 114 | } |
| 115 | return true; |
| 116 | } |
| 117 | |
| 118 | // Save out the generated code for a single class while adding |
| 119 | // declaration boilerplate. |
| 120 | bool SaveType(const std::string &defname, const Namespace &ns, |
| 121 | const std::string &classcode, bool needs_includes) const { |
| 122 | if (!classcode.length()) return true; |
| 123 | |
| 124 | std::string code; |
| 125 | code = "// " + std::string(FlatBuffersGeneratedWarning()) + "\n\n"; |
| 126 | |
| 127 | std::string namespace_name = FullNamespace(".", ns); |
| 128 | if (!namespace_name.empty()) { |
| 129 | code += "package " + namespace_name + ";"; |
| 130 | code += "\n\n"; |
| 131 | } |
| 132 | if (needs_includes) { |
| 133 | code += |
| 134 | "import java.nio.*;\nimport java.lang.*;\nimport " |
| 135 | "java.util.*;\nimport com.google.flatbuffers.*;\n"; |
| 136 | if (parser_.opts.gen_nullable) { |
| 137 | code += "\nimport javax.annotation.Nullable;\n"; |
| 138 | } |
| 139 | if (parser_.opts.java_checkerframework) { |
| 140 | code += "\nimport org.checkerframework.dataflow.qual.Pure;\n"; |
| 141 | } |
| 142 | code += "\n"; |
| 143 | } |
| 144 | |
| 145 | code += classcode; |
| 146 | if (!namespace_name.empty()) code += ""; |
| 147 | auto filename = NamespaceDir(ns) + defname + ".java"; |
| 148 | return SaveFile(filename.c_str(), code, false); |
| 149 | } |
| 150 | |
| 151 | const Namespace *CurrentNameSpace() const { return cur_name_space_; } |
| 152 | |
| 153 | std::string GenNullableAnnotation(const Type &t) const { |
| 154 | return parser_.opts.gen_nullable && |
| 155 | !IsScalar(DestinationType(t, true).base_type) && |
| 156 | t.base_type != BASE_TYPE_VECTOR |
| 157 | ? " @Nullable " |
| 158 | : ""; |
| 159 | } |
| 160 | |
| 161 | std::string GenPureAnnotation(const Type &t) const { |
| 162 | return parser_.opts.java_checkerframework && |
| 163 | !IsScalar(DestinationType(t, true).base_type) |
| 164 | ? " @Pure " |
| 165 | : ""; |
| 166 | } |
| 167 | |
| 168 | std::string GenTypeBasic(const Type &type) const { |
| 169 | // clang-format off |
| 170 | static const char * const java_typename[] = { |
| 171 | #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, ...) \ |
| 172 | #JTYPE, |
| 173 | FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD) |
| 174 | #undef FLATBUFFERS_TD |
| 175 | }; |
| 176 | // clang-format on |
| 177 | return java_typename[type.base_type]; |
| 178 | } |
| 179 | |
| 180 | std::string GenTypePointer(const Type &type) const { |
| 181 | switch (type.base_type) { |
| 182 | case BASE_TYPE_STRING: return "String"; |
| 183 | case BASE_TYPE_VECTOR: return GenTypeGet(type.VectorType()); |
| 184 | case BASE_TYPE_STRUCT: return WrapInNameSpace(*type.struct_def); |
| 185 | case BASE_TYPE_UNION: FLATBUFFERS_FALLTHROUGH(); // else fall thru |
| 186 | default: return "Table"; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | std::string GenTypeGet(const Type &type) const { |
| 191 | return IsScalar(type.base_type) |
| 192 | ? GenTypeBasic(type) |
| 193 | : (IsArray(type) ? GenTypeGet(type.VectorType()) |
| 194 | : GenTypePointer(type)); |
| 195 | } |
| 196 | |
| 197 | // Find the destination type the user wants to receive the value in (e.g. |
| 198 | // one size higher signed types for unsigned serialized values in Java). |
| 199 | Type DestinationType(const Type &type, bool vectorelem) const { |
| 200 | switch (type.base_type) { |
| 201 | // We use int for both uchar/ushort, since that generally means less |
| 202 | // casting than using short for uchar. |
| 203 | case BASE_TYPE_UCHAR: return Type(BASE_TYPE_INT); |
| 204 | case BASE_TYPE_USHORT: return Type(BASE_TYPE_INT); |
| 205 | case BASE_TYPE_UINT: return Type(BASE_TYPE_LONG); |
| 206 | case BASE_TYPE_ARRAY: |
| 207 | case BASE_TYPE_VECTOR: |
| 208 | if (vectorelem) return DestinationType(type.VectorType(), vectorelem); |
| 209 | FLATBUFFERS_FALLTHROUGH(); // else fall thru |
| 210 | default: return type; |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | std::string GenOffsetType() const { return "int"; } |
| 215 | |
| 216 | std::string GenOffsetConstruct(const std::string &variable_name) const { |
| 217 | return variable_name; |
| 218 | } |
| 219 | |
| 220 | std::string GenVectorOffsetType() const { return "int"; } |
| 221 | |
| 222 | // Generate destination type name |
| 223 | std::string GenTypeNameDest(const Type &type) const { |
| 224 | return GenTypeGet(DestinationType(type, true)); |
| 225 | } |
| 226 | |
| 227 | // Mask to turn serialized value into destination type value. |
| 228 | std::string DestinationMask(const Type &type, bool vectorelem) const { |
| 229 | switch (type.base_type) { |
| 230 | case BASE_TYPE_UCHAR: return " & 0xFF"; |
| 231 | case BASE_TYPE_USHORT: return " & 0xFFFF"; |
| 232 | case BASE_TYPE_UINT: return " & 0xFFFFFFFFL"; |
| 233 | case BASE_TYPE_VECTOR: |
| 234 | if (vectorelem) return DestinationMask(type.VectorType(), vectorelem); |
| 235 | FLATBUFFERS_FALLTHROUGH(); // else fall thru |
| 236 | default: return ""; |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | // Casts necessary to correctly read serialized data |
| 241 | std::string DestinationCast(const Type &type) const { |
| 242 | if (IsSeries(type)) { |
| 243 | return DestinationCast(type.VectorType()); |
| 244 | } else { |
| 245 | // Cast necessary to correctly read serialized unsigned values. |
| 246 | if (type.base_type == BASE_TYPE_UINT) return "(long)"; |
| 247 | } |
| 248 | return ""; |
| 249 | } |
| 250 | |
| 251 | // Cast statements for mutator method parameters. |
| 252 | // In Java, parameters representing unsigned numbers need to be cast down to |
| 253 | // their respective type. For example, a long holding an unsigned int value |
| 254 | // would be cast down to int before being put onto the buffer. |
| 255 | std::string SourceCast(const Type &type, bool castFromDest) const { |
| 256 | if (IsSeries(type)) { |
| 257 | return SourceCast(type.VectorType(), castFromDest); |
| 258 | } else { |
| 259 | if (castFromDest) { |
| 260 | if (type.base_type == BASE_TYPE_UINT) |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 261 | return "(int) "; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 262 | else if (type.base_type == BASE_TYPE_USHORT) |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 263 | return "(short) "; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 264 | else if (type.base_type == BASE_TYPE_UCHAR) |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 265 | return "(byte) "; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 266 | } |
| 267 | } |
| 268 | return ""; |
| 269 | } |
| 270 | |
| 271 | std::string SourceCast(const Type &type) const { |
| 272 | return SourceCast(type, true); |
| 273 | } |
| 274 | |
| 275 | std::string SourceCastBasic(const Type &type, bool castFromDest) const { |
| 276 | return IsScalar(type.base_type) ? SourceCast(type, castFromDest) : ""; |
| 277 | } |
| 278 | |
| 279 | std::string SourceCastBasic(const Type &type) const { |
| 280 | return SourceCastBasic(type, true); |
| 281 | } |
| 282 | |
| 283 | std::string GenEnumDefaultValue(const FieldDef &field) const { |
| 284 | auto &value = field.value; |
| 285 | FLATBUFFERS_ASSERT(value.type.enum_def); |
| 286 | auto &enum_def = *value.type.enum_def; |
| 287 | auto enum_val = enum_def.FindByValue(value.constant); |
| 288 | return enum_val ? (WrapInNameSpace(enum_def) + "." + enum_val->name) |
| 289 | : value.constant; |
| 290 | } |
| 291 | |
| 292 | std::string GenDefaultValue(const FieldDef &field) const { |
| 293 | auto &value = field.value; |
| 294 | auto constant = field.IsScalarOptional() ? "0" : value.constant; |
| 295 | auto longSuffix = "L"; |
| 296 | switch (value.type.base_type) { |
| 297 | case BASE_TYPE_BOOL: return constant == "0" ? "false" : "true"; |
| 298 | case BASE_TYPE_ULONG: { |
| 299 | // Converts the ulong into its bits signed equivalent |
| 300 | uint64_t defaultValue = StringToUInt(constant.c_str()); |
| 301 | return NumToString(static_cast<int64_t>(defaultValue)) + longSuffix; |
| 302 | } |
| 303 | case BASE_TYPE_UINT: |
| 304 | case BASE_TYPE_LONG: return constant + longSuffix; |
| 305 | default: |
| 306 | if (IsFloat(value.type.base_type)) { |
| 307 | if (field.IsScalarOptional()) { |
| 308 | return value.type.base_type == BASE_TYPE_DOUBLE ? "0.0" : "0f"; |
| 309 | } |
| 310 | return JavaFloatGen.GenFloatConstant(field); |
| 311 | } else { |
| 312 | return constant; |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | std::string GenDefaultValueBasic(const FieldDef &field) const { |
| 318 | auto &value = field.value; |
| 319 | if (!IsScalar(value.type.base_type)) { return "0"; } |
| 320 | return GenDefaultValue(field); |
| 321 | } |
| 322 | |
| 323 | void GenEnum(EnumDef &enum_def, std::string *code_ptr) const { |
| 324 | std::string &code = *code_ptr; |
| 325 | if (enum_def.generated) return; |
| 326 | |
| 327 | // Generate enum definitions of the form: |
| 328 | // public static (final) int name = value; |
| 329 | // In Java, we use ints rather than the Enum feature, because we want them |
| 330 | // to map directly to how they're used in C/C++ and file formats. |
| 331 | // That, and Java Enums are expensive, and not universally liked. |
| 332 | GenComment(enum_def.doc_comment, code_ptr, &comment_config); |
| 333 | |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 334 | code += "@SuppressWarnings(\"unused\")\n"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 335 | if (enum_def.attributes.Lookup("private")) { |
| 336 | // For Java, we leave the enum unmarked to indicate package-private |
| 337 | } else { |
| 338 | code += "public "; |
| 339 | } |
| 340 | code += "final class " + enum_def.name; |
| 341 | code += " {\n"; |
| 342 | code += " private " + enum_def.name + "() { }\n"; |
| 343 | for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| 344 | auto &ev = **it; |
| 345 | GenComment(ev.doc_comment, code_ptr, &comment_config, " "); |
| 346 | code += " public static final "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 347 | code += GenTypeBasic(DestinationType(enum_def.underlying_type, false)); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 348 | code += " "; |
| 349 | code += ev.name + " = "; |
| 350 | code += enum_def.ToString(ev); |
| 351 | code += ";\n"; |
| 352 | } |
| 353 | |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 354 | // Generate a string table for enum values. |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 355 | // Problem is, if values are very sparse that could generate really big |
| 356 | // tables. Ideally in that case we generate a map lookup instead, but for |
| 357 | // the moment we simply don't output a table at all. |
| 358 | auto range = enum_def.Distance(); |
| 359 | // Average distance between values above which we consider a table |
| 360 | // "too sparse". Change at will. |
| 361 | static const uint64_t kMaxSparseness = 5; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 362 | if (range / static_cast<uint64_t>(enum_def.size()) < kMaxSparseness && |
| 363 | GenTypeBasic(DestinationType(enum_def.underlying_type, false)) != |
| 364 | "long") { |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 365 | code += "\n public static final String"; |
| 366 | code += "[] names = { "; |
| 367 | auto val = enum_def.Vals().front(); |
| 368 | for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); |
| 369 | ++it) { |
| 370 | auto ev = *it; |
| 371 | for (auto k = enum_def.Distance(val, ev); k > 1; --k) code += "\"\", "; |
| 372 | val = ev; |
| 373 | code += "\"" + (*it)->name + "\", "; |
| 374 | } |
| 375 | code += "};\n\n"; |
| 376 | code += " public static "; |
| 377 | code += "String"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 378 | code += " name"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 379 | code += "(int e) { return names[e"; |
| 380 | if (enum_def.MinValue()->IsNonZero()) |
| 381 | code += " - " + enum_def.MinValue()->name; |
| 382 | code += "]; }\n"; |
| 383 | } |
| 384 | |
| 385 | // Close the class |
| 386 | code += "}\n\n"; |
| 387 | } |
| 388 | |
| 389 | // Returns the function name that is able to read a value of the given type. |
| 390 | std::string GenGetter(const Type &type) const { |
| 391 | switch (type.base_type) { |
| 392 | case BASE_TYPE_STRING: return "__string"; |
| 393 | case BASE_TYPE_STRUCT: return "__struct"; |
| 394 | case BASE_TYPE_UNION: return "__union"; |
| 395 | case BASE_TYPE_VECTOR: return GenGetter(type.VectorType()); |
| 396 | case BASE_TYPE_ARRAY: return GenGetter(type.VectorType()); |
| 397 | default: { |
| 398 | std::string getter = "bb.get"; |
| 399 | if (type.base_type == BASE_TYPE_BOOL) { |
| 400 | getter = "0!=" + getter; |
| 401 | } else if (GenTypeBasic(type) != "byte") { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 402 | getter += ConvertCase(GenTypeBasic(type), Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 403 | } |
| 404 | return getter; |
| 405 | } |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | // Returns the function name that is able to read a value of the given type. |
| 410 | std::string GenGetterForLookupByKey(flatbuffers::FieldDef *key_field, |
| 411 | const std::string &data_buffer, |
| 412 | const char *num = nullptr) const { |
| 413 | auto type = key_field->value.type; |
| 414 | auto dest_mask = DestinationMask(type, true); |
| 415 | auto dest_cast = DestinationCast(type); |
| 416 | auto getter = data_buffer + ".get"; |
| 417 | if (GenTypeBasic(type) != "byte") { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 418 | getter += ConvertCase(GenTypeBasic(type), Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 419 | } |
| 420 | getter = dest_cast + getter + "(" + GenOffsetGetter(key_field, num) + ")" + |
| 421 | dest_mask; |
| 422 | return getter; |
| 423 | } |
| 424 | |
| 425 | // Direct mutation is only allowed for scalar fields. |
| 426 | // Hence a setter method will only be generated for such fields. |
| 427 | std::string GenSetter(const Type &type) const { |
| 428 | if (IsScalar(type.base_type)) { |
| 429 | std::string setter = "bb.put"; |
| 430 | if (GenTypeBasic(type) != "byte" && type.base_type != BASE_TYPE_BOOL) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 431 | setter += ConvertCase(GenTypeBasic(type), Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 432 | } |
| 433 | return setter; |
| 434 | } else { |
| 435 | return ""; |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | // Returns the method name for use with add/put calls. |
| 440 | std::string GenMethod(const Type &type) const { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 441 | return IsScalar(type.base_type) |
| 442 | ? ConvertCase(GenTypeBasic(type), Case::kUpperCamel) |
| 443 | : (IsStruct(type) ? "Struct" : "Offset"); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | // Recursively generate arguments for a constructor, to deal with nested |
| 447 | // structs. |
| 448 | void GenStructArgs(const StructDef &struct_def, std::string *code_ptr, |
| 449 | const char *nameprefix, size_t array_count = 0) const { |
| 450 | std::string &code = *code_ptr; |
| 451 | for (auto it = struct_def.fields.vec.begin(); |
| 452 | it != struct_def.fields.vec.end(); ++it) { |
| 453 | auto &field = **it; |
| 454 | const auto &field_type = field.value.type; |
| 455 | const auto array_field = IsArray(field_type); |
| 456 | const auto &type = array_field ? field_type.VectorType() |
| 457 | : DestinationType(field_type, false); |
| 458 | const auto array_cnt = array_field ? (array_count + 1) : array_count; |
| 459 | if (IsStruct(type)) { |
| 460 | // Generate arguments for a struct inside a struct. To ensure names |
| 461 | // don't clash, and to make it obvious these arguments are constructing |
| 462 | // a nested struct, prefix the name with the field name. |
| 463 | GenStructArgs(*field_type.struct_def, code_ptr, |
| 464 | (nameprefix + (field.name + "_")).c_str(), array_cnt); |
| 465 | } else { |
| 466 | code += ", "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 467 | code += GenTypeNameDest(field.value.type); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 468 | for (size_t i = 0; i < array_cnt; i++) code += "[]"; |
| 469 | code += " "; |
| 470 | code += nameprefix; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 471 | code += ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 472 | } |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | // Recusively generate struct construction statements of the form: |
| 477 | // builder.putType(name); |
| 478 | // and insert manual padding. |
| 479 | void GenStructBody(const StructDef &struct_def, std::string *code_ptr, |
| 480 | const char *nameprefix, size_t index = 0, |
| 481 | bool in_array = false) const { |
| 482 | std::string &code = *code_ptr; |
| 483 | std::string indent((index + 1) * 2, ' '); |
| 484 | code += indent + " builder.prep("; |
| 485 | code += NumToString(struct_def.minalign) + ", "; |
| 486 | code += NumToString(struct_def.bytesize) + ");\n"; |
| 487 | for (auto it = struct_def.fields.vec.rbegin(); |
| 488 | it != struct_def.fields.vec.rend(); ++it) { |
| 489 | auto &field = **it; |
| 490 | const auto &field_type = field.value.type; |
| 491 | if (field.padding) { |
| 492 | code += indent + " builder.pad("; |
| 493 | code += NumToString(field.padding) + ");\n"; |
| 494 | } |
| 495 | if (IsStruct(field_type)) { |
| 496 | GenStructBody(*field_type.struct_def, code_ptr, |
| 497 | (nameprefix + (field.name + "_")).c_str(), index, |
| 498 | in_array); |
| 499 | } else { |
| 500 | const auto &type = |
| 501 | IsArray(field_type) ? field_type.VectorType() : field_type; |
| 502 | const auto index_var = "_idx" + NumToString(index); |
| 503 | if (IsArray(field_type)) { |
| 504 | code += indent + " for (int " + index_var + " = "; |
| 505 | code += NumToString(field_type.fixed_length); |
| 506 | code += "; " + index_var + " > 0; " + index_var + "--) {\n"; |
| 507 | in_array = true; |
| 508 | } |
| 509 | if (IsStruct(type)) { |
| 510 | GenStructBody(*field_type.struct_def, code_ptr, |
| 511 | (nameprefix + (field.name + "_")).c_str(), index + 1, |
| 512 | in_array); |
| 513 | } else { |
| 514 | code += IsArray(field_type) ? " " : ""; |
| 515 | code += indent + " builder.put"; |
| 516 | code += GenMethod(type) + "("; |
| 517 | code += SourceCast(type); |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 518 | auto argname = |
| 519 | nameprefix + ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 520 | code += argname; |
| 521 | size_t array_cnt = index + (IsArray(field_type) ? 1 : 0); |
| 522 | for (size_t i = 0; in_array && i < array_cnt; i++) { |
| 523 | code += "[_idx" + NumToString(i) + "-1]"; |
| 524 | } |
| 525 | code += ");\n"; |
| 526 | } |
| 527 | if (IsArray(field_type)) { code += indent + " }\n"; } |
| 528 | } |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | std::string GenByteBufferLength(const char *bb_name) const { |
| 533 | std::string bb_len = bb_name; |
| 534 | bb_len += ".capacity()"; |
| 535 | return bb_len; |
| 536 | } |
| 537 | |
| 538 | std::string GenOffsetGetter(flatbuffers::FieldDef *key_field, |
| 539 | const char *num = nullptr) const { |
| 540 | std::string key_offset = ""; |
| 541 | key_offset += "__offset(" + NumToString(key_field->value.offset) + ", "; |
| 542 | if (num) { |
| 543 | key_offset += num; |
| 544 | key_offset += ", _bb)"; |
| 545 | } else { |
| 546 | key_offset += GenByteBufferLength("bb"); |
| 547 | key_offset += " - tableOffset, bb)"; |
| 548 | } |
| 549 | return key_offset; |
| 550 | } |
| 551 | |
| 552 | std::string GenLookupKeyGetter(flatbuffers::FieldDef *key_field) const { |
| 553 | std::string key_getter = " "; |
| 554 | key_getter += "int tableOffset = "; |
| 555 | key_getter += "__indirect(vectorLocation + 4 * (start + middle)"; |
| 556 | key_getter += ", bb);\n "; |
| 557 | if (IsString(key_field->value.type)) { |
| 558 | key_getter += "int comp = "; |
| 559 | key_getter += "compareStrings("; |
| 560 | key_getter += GenOffsetGetter(key_field); |
| 561 | key_getter += ", byteKey, bb);\n"; |
| 562 | } else { |
| 563 | auto get_val = GenGetterForLookupByKey(key_field, "bb"); |
| 564 | key_getter += GenTypeNameDest(key_field->value.type) + " val = "; |
| 565 | key_getter += get_val + ";\n"; |
| 566 | key_getter += " int comp = val > key ? 1 : val < key ? -1 : 0;\n"; |
| 567 | } |
| 568 | return key_getter; |
| 569 | } |
| 570 | |
| 571 | std::string GenKeyGetter(flatbuffers::FieldDef *key_field) const { |
| 572 | std::string key_getter = ""; |
| 573 | auto data_buffer = "_bb"; |
| 574 | if (IsString(key_field->value.type)) { |
| 575 | key_getter += " return "; |
| 576 | key_getter += ""; |
| 577 | key_getter += "compareStrings("; |
| 578 | key_getter += GenOffsetGetter(key_field, "o1") + ", "; |
| 579 | key_getter += GenOffsetGetter(key_field, "o2") + ", " + data_buffer + ")"; |
| 580 | key_getter += ";"; |
| 581 | } else { |
| 582 | auto field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o1"); |
| 583 | key_getter += |
| 584 | "\n " + GenTypeNameDest(key_field->value.type) + " val_1 = "; |
| 585 | key_getter += |
| 586 | field_getter + ";\n " + GenTypeNameDest(key_field->value.type); |
| 587 | key_getter += " val_2 = "; |
| 588 | field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o2"); |
| 589 | key_getter += field_getter + ";\n"; |
| 590 | key_getter += " return val_1 > val_2 ? 1 : val_1 < val_2 ? -1 : 0;\n "; |
| 591 | } |
| 592 | return key_getter; |
| 593 | } |
| 594 | |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 595 | void GenStruct(StructDef &struct_def, std::string *code_ptr, |
| 596 | const IDLOptions &opts) const { |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 597 | if (struct_def.generated) return; |
| 598 | std::string &code = *code_ptr; |
| 599 | |
| 600 | // Generate a struct accessor class, with methods of the form: |
| 601 | // public type name() { return bb.getType(i + offset); } |
| 602 | // or for tables of the form: |
| 603 | // public type name() { |
| 604 | // int o = __offset(offset); return o != 0 ? bb.getType(o + i) : default; |
| 605 | // } |
| 606 | GenComment(struct_def.doc_comment, code_ptr, &comment_config); |
| 607 | |
| 608 | if (parser_.opts.gen_generated) { |
| 609 | code += "@javax.annotation.Generated(value=\"flatc\")\n"; |
| 610 | } |
| 611 | code += "@SuppressWarnings(\"unused\")\n"; |
| 612 | if (struct_def.attributes.Lookup("private")) { |
| 613 | // For Java, we leave the struct unmarked to indicate package-private |
| 614 | } else { |
| 615 | code += "public "; |
| 616 | } |
| 617 | code += "final class " + struct_def.name; |
| 618 | code += " extends "; |
| 619 | code += struct_def.fixed ? "Struct" : "Table"; |
| 620 | code += " {\n"; |
| 621 | |
| 622 | if (!struct_def.fixed) { |
| 623 | // Generate verson check method. |
| 624 | // Force compile time error if not using the same version runtime. |
| 625 | code += " public static void ValidateVersion() {"; |
| 626 | code += " Constants."; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 627 | code += "FLATBUFFERS_2_0_0(); "; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 628 | code += "}\n"; |
| 629 | |
| 630 | // Generate a special accessor for the table that when used as the root |
| 631 | // of a FlatBuffer |
| 632 | std::string method_name = "getRootAs" + struct_def.name; |
| 633 | std::string method_signature = |
| 634 | " public static " + struct_def.name + " " + method_name; |
| 635 | |
| 636 | // create convenience method that doesn't require an existing object |
| 637 | code += method_signature + "(ByteBuffer _bb) "; |
| 638 | code += "{ return " + method_name + "(_bb, new " + struct_def.name + |
| 639 | "()); }\n"; |
| 640 | |
| 641 | // create method that allows object reuse |
| 642 | code += |
| 643 | method_signature + "(ByteBuffer _bb, " + struct_def.name + " obj) { "; |
| 644 | code += "_bb.order(ByteOrder.LITTLE_ENDIAN); "; |
| 645 | code += "return (obj.__assign(_bb.getInt(_bb."; |
| 646 | code += "position()"; |
| 647 | code += ") + _bb."; |
| 648 | code += "position()"; |
| 649 | code += ", _bb)); }\n"; |
| 650 | if (parser_.root_struct_def_ == &struct_def) { |
| 651 | if (parser_.file_identifier_.length()) { |
| 652 | // Check if a buffer has the identifier. |
| 653 | code += " public static "; |
| 654 | code += "boolean " + struct_def.name; |
| 655 | code += "BufferHasIdentifier(ByteBuffer _bb) { return "; |
| 656 | code += "__has_identifier(_bb, \""; |
| 657 | code += parser_.file_identifier_; |
| 658 | code += "\"); }\n"; |
| 659 | } |
| 660 | } |
| 661 | } |
| 662 | // Generate the __init method that sets the field in a pre-existing |
| 663 | // accessor object. This is to allow object reuse. |
| 664 | code += " public void __init(int _i, ByteBuffer _bb) "; |
| 665 | code += "{ "; |
| 666 | code += "__reset(_i, _bb); "; |
| 667 | code += "}\n"; |
| 668 | code += |
| 669 | " public " + struct_def.name + " __assign(int _i, ByteBuffer _bb) "; |
| 670 | code += "{ __init(_i, _bb); return this; }\n\n"; |
| 671 | for (auto it = struct_def.fields.vec.begin(); |
| 672 | it != struct_def.fields.vec.end(); ++it) { |
| 673 | auto &field = **it; |
| 674 | if (field.deprecated) continue; |
| 675 | GenComment(field.doc_comment, code_ptr, &comment_config, " "); |
| 676 | std::string type_name = GenTypeGet(field.value.type); |
| 677 | std::string type_name_dest = GenTypeNameDest(field.value.type); |
| 678 | std::string conditional_cast = ""; |
| 679 | std::string optional = ""; |
| 680 | std::string dest_mask = DestinationMask(field.value.type, true); |
| 681 | std::string dest_cast = DestinationCast(field.value.type); |
| 682 | std::string src_cast = SourceCast(field.value.type); |
| 683 | std::string method_start = |
| 684 | " public " + |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 685 | (field.IsRequired() ? "" : GenNullableAnnotation(field.value.type)) + |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 686 | GenPureAnnotation(field.value.type) + type_name_dest + optional + |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 687 | " " + ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 688 | std::string obj = "obj"; |
| 689 | |
| 690 | // Most field accessors need to retrieve and test the field offset first, |
| 691 | // this is the prefix code for that: |
| 692 | auto offset_prefix = |
| 693 | IsArray(field.value.type) |
| 694 | ? " { return " |
| 695 | : (" { int o = __offset(" + NumToString(field.value.offset) + |
| 696 | "); return o != 0 ? "); |
| 697 | // Generate the accessors that don't do object reuse. |
| 698 | if (field.value.type.base_type == BASE_TYPE_STRUCT) { |
| 699 | // Calls the accessor that takes an accessor object with a new object. |
| 700 | code += method_start + "() { return "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 701 | code += ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 702 | code += "(new "; |
| 703 | code += type_name + "()); }\n"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 704 | } else if (IsSeries(field.value.type) && |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 705 | field.value.type.element == BASE_TYPE_STRUCT) { |
| 706 | // Accessors for vectors of structs also take accessor objects, this |
| 707 | // generates a variant without that argument. |
| 708 | code += method_start + "(int j) { return "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 709 | code += ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 710 | code += "(new " + type_name + "(), j); }\n"; |
| 711 | } |
| 712 | |
| 713 | if (field.IsScalarOptional()) { code += GenOptionalScalarCheck(field); } |
| 714 | std::string getter = dest_cast + GenGetter(field.value.type); |
| 715 | code += method_start; |
| 716 | std::string default_cast = ""; |
| 717 | std::string member_suffix = "; "; |
| 718 | if (IsScalar(field.value.type.base_type)) { |
| 719 | code += "()"; |
| 720 | member_suffix += ""; |
| 721 | if (struct_def.fixed) { |
| 722 | code += " { return " + getter; |
| 723 | code += "(bb_pos + "; |
| 724 | code += NumToString(field.value.offset) + ")"; |
| 725 | code += dest_mask; |
| 726 | } else { |
| 727 | code += offset_prefix + getter; |
| 728 | code += "(o + bb_pos)" + dest_mask; |
| 729 | code += " : " + default_cast; |
| 730 | code += GenDefaultValue(field); |
| 731 | } |
| 732 | } else { |
| 733 | switch (field.value.type.base_type) { |
| 734 | case BASE_TYPE_STRUCT: |
| 735 | code += "(" + type_name + " obj)"; |
| 736 | if (struct_def.fixed) { |
| 737 | code += " { return " + obj + ".__assign("; |
| 738 | code += "bb_pos + " + NumToString(field.value.offset) + ", "; |
| 739 | code += "bb)"; |
| 740 | } else { |
| 741 | code += offset_prefix + conditional_cast; |
| 742 | code += obj + ".__assign("; |
| 743 | code += field.value.type.struct_def->fixed |
| 744 | ? "o + bb_pos" |
| 745 | : "__indirect(o + bb_pos)"; |
| 746 | code += ", bb) : null"; |
| 747 | } |
| 748 | break; |
| 749 | case BASE_TYPE_STRING: |
| 750 | code += "()"; |
| 751 | member_suffix += ""; |
| 752 | code += offset_prefix + getter + "(o + "; |
| 753 | code += "bb_pos) : null"; |
| 754 | break; |
| 755 | case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 756 | case BASE_TYPE_VECTOR: { |
| 757 | auto vectortype = field.value.type.VectorType(); |
| 758 | code += "("; |
| 759 | if (vectortype.base_type == BASE_TYPE_STRUCT) { |
| 760 | code += type_name + " obj, "; |
| 761 | getter = obj + ".__assign"; |
| 762 | } else if (vectortype.base_type == BASE_TYPE_UNION) { |
| 763 | code += type_name + " obj, "; |
| 764 | } |
| 765 | code += "int j)"; |
| 766 | const auto body = offset_prefix + conditional_cast + getter + "("; |
| 767 | if (vectortype.base_type == BASE_TYPE_UNION) { |
| 768 | code += body + "obj, "; |
| 769 | } else { |
| 770 | code += body; |
| 771 | } |
| 772 | std::string index; |
| 773 | if (IsArray(field.value.type)) { |
| 774 | index += "bb_pos + " + NumToString(field.value.offset) + " + "; |
| 775 | } else { |
| 776 | index += "__vector(o) + "; |
| 777 | } |
| 778 | index += "j * " + NumToString(InlineSize(vectortype)); |
| 779 | if (vectortype.base_type == BASE_TYPE_STRUCT) { |
| 780 | code += vectortype.struct_def->fixed |
| 781 | ? index |
| 782 | : "__indirect(" + index + ")"; |
| 783 | code += ", bb"; |
| 784 | } else { |
| 785 | code += index; |
| 786 | } |
| 787 | code += ")" + dest_mask; |
| 788 | if (!IsArray(field.value.type)) { |
| 789 | code += " : "; |
| 790 | code += |
| 791 | field.value.type.element == BASE_TYPE_BOOL |
| 792 | ? "false" |
| 793 | : (IsScalar(field.value.type.element) ? default_cast + "0" |
| 794 | : "null"); |
| 795 | } |
| 796 | |
| 797 | break; |
| 798 | } |
| 799 | case BASE_TYPE_UNION: |
| 800 | code += "(" + type_name + " obj)" + offset_prefix + getter; |
| 801 | code += "(obj, o + bb_pos) : null"; |
| 802 | break; |
| 803 | default: FLATBUFFERS_ASSERT(0); |
| 804 | } |
| 805 | } |
| 806 | code += member_suffix; |
| 807 | code += "}\n"; |
| 808 | if (IsVector(field.value.type)) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 809 | code += " public int " + ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 810 | code += "Length"; |
| 811 | code += "()"; |
| 812 | code += offset_prefix; |
| 813 | code += "__vector_len(o) : 0; "; |
| 814 | code += ""; |
| 815 | code += "}\n"; |
| 816 | // See if we should generate a by-key accessor. |
| 817 | if (field.value.type.element == BASE_TYPE_STRUCT && |
| 818 | !field.value.type.struct_def->fixed) { |
| 819 | auto &sd = *field.value.type.struct_def; |
| 820 | auto &fields = sd.fields.vec; |
| 821 | for (auto kit = fields.begin(); kit != fields.end(); ++kit) { |
| 822 | auto &key_field = **kit; |
| 823 | if (key_field.key) { |
| 824 | auto qualified_name = WrapInNameSpace(sd); |
| 825 | code += " public " + qualified_name + " "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 826 | code += ConvertCase(field.name, Case::kLowerCamel) + "ByKey("; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 827 | code += GenTypeNameDest(key_field.value.type) + " key)"; |
| 828 | code += offset_prefix; |
| 829 | code += qualified_name + ".__lookup_by_key("; |
| 830 | code += "null, "; |
| 831 | code += "__vector(o), key, "; |
| 832 | code += "bb) : null; "; |
| 833 | code += "}\n"; |
| 834 | code += " public " + qualified_name + " "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 835 | code += ConvertCase(field.name, Case::kLowerCamel) + "ByKey("; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 836 | code += qualified_name + " obj, "; |
| 837 | code += GenTypeNameDest(key_field.value.type) + " key)"; |
| 838 | code += offset_prefix; |
| 839 | code += qualified_name + ".__lookup_by_key(obj, "; |
| 840 | code += "__vector(o), key, "; |
| 841 | code += "bb) : null; "; |
| 842 | code += "}\n"; |
| 843 | break; |
| 844 | } |
| 845 | } |
| 846 | } |
| 847 | } |
| 848 | // Generate the accessors for vector of structs with vector access object |
| 849 | if (IsVector(field.value.type)) { |
| 850 | std::string vector_type_name; |
| 851 | const auto &element_base_type = field.value.type.VectorType().base_type; |
| 852 | if (IsScalar(element_base_type)) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 853 | vector_type_name = |
| 854 | ConvertCase(type_name, Case::kUpperCamel) + "Vector"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 855 | } else if (element_base_type == BASE_TYPE_STRING) { |
| 856 | vector_type_name = "StringVector"; |
| 857 | } else if (element_base_type == BASE_TYPE_UNION) { |
| 858 | vector_type_name = "UnionVector"; |
| 859 | } else { |
| 860 | vector_type_name = type_name + ".Vector"; |
| 861 | } |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 862 | auto vector_method_start = |
| 863 | GenNullableAnnotation(field.value.type) + " public " + |
| 864 | vector_type_name + optional + " " + |
| 865 | ConvertCase(field.name, Case::kLowerCamel) + "Vector"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 866 | code += vector_method_start + "() { return "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 867 | code += ConvertCase(field.name, Case::kLowerCamel) + "Vector"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 868 | code += "(new " + vector_type_name + "()); }\n"; |
| 869 | code += vector_method_start + "(" + vector_type_name + " obj)"; |
| 870 | code += offset_prefix + conditional_cast + obj + ".__assign("; |
| 871 | code += "__vector(o), "; |
| 872 | if (!IsScalar(element_base_type)) { |
| 873 | auto vectortype = field.value.type.VectorType(); |
| 874 | code += NumToString(InlineSize(vectortype)) + ", "; |
| 875 | } |
| 876 | code += "bb) : null" + member_suffix + "}\n"; |
| 877 | } |
| 878 | // Generate a ByteBuffer accessor for strings & vectors of scalars. |
| 879 | if ((IsVector(field.value.type) && |
| 880 | IsScalar(field.value.type.VectorType().base_type)) || |
| 881 | IsString(field.value.type)) { |
| 882 | code += " public ByteBuffer "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 883 | code += ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 884 | code += "AsByteBuffer() { return "; |
| 885 | code += "__vector_as_bytebuffer("; |
| 886 | code += NumToString(field.value.offset) + ", "; |
| 887 | code += NumToString(IsString(field.value.type) |
| 888 | ? 1 |
| 889 | : InlineSize(field.value.type.VectorType())); |
| 890 | code += "); }\n"; |
| 891 | code += " public ByteBuffer "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 892 | code += ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 893 | code += "InByteBuffer(ByteBuffer _bb) { return "; |
| 894 | code += "__vector_in_bytebuffer(_bb, "; |
| 895 | code += NumToString(field.value.offset) + ", "; |
| 896 | code += NumToString(IsString(field.value.type) |
| 897 | ? 1 |
| 898 | : InlineSize(field.value.type.VectorType())); |
| 899 | code += "); }\n"; |
| 900 | } |
| 901 | // generate object accessors if is nested_flatbuffer |
| 902 | if (field.nested_flatbuffer) { |
| 903 | auto nested_type_name = WrapInNameSpace(*field.nested_flatbuffer); |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 904 | auto nested_method_name = ConvertCase(field.name, Case::kLowerCamel) + |
| 905 | "As" + field.nested_flatbuffer->name; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 906 | auto get_nested_method_name = nested_method_name; |
| 907 | code += " public " + nested_type_name + " "; |
| 908 | code += nested_method_name + "() { return "; |
| 909 | code += |
| 910 | get_nested_method_name + "(new " + nested_type_name + "()); }\n"; |
| 911 | code += " public " + nested_type_name + " "; |
| 912 | code += get_nested_method_name + "("; |
| 913 | code += nested_type_name + " obj"; |
| 914 | code += ") { int o = __offset("; |
| 915 | code += NumToString(field.value.offset) + "); "; |
| 916 | code += "return o != 0 ? " + conditional_cast + obj + ".__assign("; |
| 917 | code += ""; |
| 918 | code += "__indirect(__vector(o)), "; |
| 919 | code += "bb) : null; }\n"; |
| 920 | } |
| 921 | // Generate mutators for scalar fields or vectors of scalars. |
| 922 | if (parser_.opts.mutable_buffer) { |
| 923 | auto is_series = (IsSeries(field.value.type)); |
| 924 | const auto &underlying_type = |
| 925 | is_series ? field.value.type.VectorType() : field.value.type; |
| 926 | // Boolean parameters have to be explicitly converted to byte |
| 927 | // representation. |
| 928 | auto setter_parameter = underlying_type.base_type == BASE_TYPE_BOOL |
| 929 | ? "(byte)(" + field.name + " ? 1 : 0)" |
| 930 | : field.name; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 931 | auto mutator_prefix = "mutate"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 932 | // A vector mutator also needs the index of the vector element it should |
| 933 | // mutate. |
| 934 | auto mutator_params = (is_series ? "(int j, " : "(") + |
| 935 | GenTypeNameDest(underlying_type) + " " + |
| 936 | field.name + ") { "; |
| 937 | auto setter_index = |
| 938 | is_series |
| 939 | ? (IsArray(field.value.type) |
| 940 | ? "bb_pos + " + NumToString(field.value.offset) |
| 941 | : "__vector(o)") + |
| 942 | +" + j * " + NumToString(InlineSize(underlying_type)) |
| 943 | : (struct_def.fixed |
| 944 | ? "bb_pos + " + NumToString(field.value.offset) |
| 945 | : "o + bb_pos"); |
| 946 | if (IsScalar(underlying_type.base_type) && !IsUnion(field.value.type)) { |
| 947 | code += " public "; |
| 948 | code += struct_def.fixed ? "void " : "boolean "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 949 | code += mutator_prefix + ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 950 | code += mutator_params; |
| 951 | if (struct_def.fixed) { |
| 952 | code += GenSetter(underlying_type) + "(" + setter_index + ", "; |
| 953 | code += src_cast + setter_parameter + "); }\n"; |
| 954 | } else { |
| 955 | code += "int o = __offset("; |
| 956 | code += NumToString(field.value.offset) + ");"; |
| 957 | code += " if (o != 0) { " + GenSetter(underlying_type); |
| 958 | code += "(" + setter_index + ", " + src_cast + setter_parameter + |
| 959 | "); return true; } else { return false; } }\n"; |
| 960 | } |
| 961 | } |
| 962 | } |
| 963 | if (parser_.opts.java_primitive_has_method && |
| 964 | IsScalar(field.value.type.base_type) && !struct_def.fixed) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 965 | auto vt_offset_constant = |
| 966 | " public static final int VT_" + |
| 967 | ConvertCase(field.name, Case::kScreamingSnake) + " = " + |
| 968 | NumToString(field.value.offset) + ";"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 969 | |
| 970 | code += vt_offset_constant; |
| 971 | code += "\n"; |
| 972 | } |
| 973 | } |
| 974 | code += "\n"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 975 | auto struct_has_create = false; |
| 976 | std::set<flatbuffers::FieldDef *> field_has_create_set; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 977 | flatbuffers::FieldDef *key_field = nullptr; |
| 978 | if (struct_def.fixed) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 979 | struct_has_create = true; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 980 | // create a struct constructor function |
| 981 | code += " public static " + GenOffsetType() + " "; |
| 982 | code += "create"; |
| 983 | code += struct_def.name + "(FlatBufferBuilder builder"; |
| 984 | GenStructArgs(struct_def, code_ptr, ""); |
| 985 | code += ") {\n"; |
| 986 | GenStructBody(struct_def, code_ptr, ""); |
| 987 | code += " return "; |
| 988 | code += GenOffsetConstruct("builder." + std::string("offset()")); |
| 989 | code += ";\n }\n"; |
| 990 | } else { |
| 991 | // Generate a method that creates a table in one go. This is only possible |
| 992 | // when the table has no struct fields, since those have to be created |
| 993 | // inline, and there's no way to do so in Java. |
| 994 | bool has_no_struct_fields = true; |
| 995 | int num_fields = 0; |
| 996 | for (auto it = struct_def.fields.vec.begin(); |
| 997 | it != struct_def.fields.vec.end(); ++it) { |
| 998 | auto &field = **it; |
| 999 | if (field.deprecated) continue; |
| 1000 | if (IsStruct(field.value.type)) { |
| 1001 | has_no_struct_fields = false; |
| 1002 | } else { |
| 1003 | num_fields++; |
| 1004 | } |
| 1005 | } |
| 1006 | // JVM specifications restrict default constructor params to be < 255. |
| 1007 | // Longs and doubles take up 2 units, so we set the limit to be < 127. |
| 1008 | if (has_no_struct_fields && num_fields && num_fields < 127) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1009 | struct_has_create = true; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1010 | // Generate a table constructor of the form: |
| 1011 | // public static int createName(FlatBufferBuilder builder, args...) |
| 1012 | code += " public static " + GenOffsetType() + " "; |
| 1013 | code += "create" + struct_def.name; |
| 1014 | code += "(FlatBufferBuilder builder"; |
| 1015 | for (auto it = struct_def.fields.vec.begin(); |
| 1016 | it != struct_def.fields.vec.end(); ++it) { |
| 1017 | auto &field = **it; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1018 | auto field_name = ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1019 | if (field.deprecated) continue; |
| 1020 | code += ",\n "; |
| 1021 | code += GenTypeBasic(DestinationType(field.value.type, false)); |
| 1022 | code += " "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1023 | code += field_name; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1024 | if (!IsScalar(field.value.type.base_type)) code += "Offset"; |
| 1025 | } |
| 1026 | code += ") {\n builder."; |
| 1027 | code += "startTable("; |
| 1028 | code += NumToString(struct_def.fields.vec.size()) + ");\n"; |
| 1029 | for (size_t size = struct_def.sortbysize ? sizeof(largest_scalar_t) : 1; |
| 1030 | size; size /= 2) { |
| 1031 | for (auto it = struct_def.fields.vec.rbegin(); |
| 1032 | it != struct_def.fields.vec.rend(); ++it) { |
| 1033 | auto &field = **it; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1034 | auto field_name = ConvertCase(field.name, Case::kLowerCamel); |
| 1035 | auto method_name = ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1036 | if (!field.deprecated && |
| 1037 | (!struct_def.sortbysize || |
| 1038 | size == SizeOf(field.value.type.base_type))) { |
| 1039 | code += " " + struct_def.name + "."; |
| 1040 | code += "add"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1041 | code += method_name + "(builder, " + field_name; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1042 | if (!IsScalar(field.value.type.base_type)) code += "Offset"; |
| 1043 | code += ");\n"; |
| 1044 | } |
| 1045 | } |
| 1046 | } |
| 1047 | code += " return " + struct_def.name + "."; |
| 1048 | code += "end" + struct_def.name; |
| 1049 | code += "(builder);\n }\n\n"; |
| 1050 | } |
| 1051 | // Generate a set of static methods that allow table construction, |
| 1052 | // of the form: |
| 1053 | // public static void addName(FlatBufferBuilder builder, short name) |
| 1054 | // { builder.addShort(id, name, default); } |
| 1055 | // Unlike the Create function, these always work. |
| 1056 | code += " public static void start"; |
| 1057 | code += struct_def.name; |
| 1058 | code += "(FlatBufferBuilder builder) { builder."; |
| 1059 | code += "startTable("; |
| 1060 | code += NumToString(struct_def.fields.vec.size()) + "); }\n"; |
| 1061 | for (auto it = struct_def.fields.vec.begin(); |
| 1062 | it != struct_def.fields.vec.end(); ++it) { |
| 1063 | auto &field = **it; |
| 1064 | if (field.deprecated) continue; |
| 1065 | if (field.key) key_field = &field; |
| 1066 | code += " public static void add"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1067 | code += ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1068 | code += "(FlatBufferBuilder builder, "; |
| 1069 | code += GenTypeBasic(DestinationType(field.value.type, false)); |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1070 | auto argname = ConvertCase(field.name, Case::kLowerCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1071 | if (!IsScalar(field.value.type.base_type)) argname += "Offset"; |
| 1072 | code += " " + argname + ") { builder.add"; |
| 1073 | code += GenMethod(field.value.type) + "("; |
| 1074 | code += NumToString(it - struct_def.fields.vec.begin()) + ", "; |
| 1075 | code += SourceCastBasic(field.value.type); |
| 1076 | code += argname; |
| 1077 | code += ", "; |
| 1078 | code += SourceCastBasic(field.value.type); |
| 1079 | code += GenDefaultValue(field); |
| 1080 | code += "); }\n"; |
| 1081 | if (IsVector(field.value.type)) { |
| 1082 | auto vector_type = field.value.type.VectorType(); |
| 1083 | auto alignment = InlineAlignment(vector_type); |
| 1084 | auto elem_size = InlineSize(vector_type); |
| 1085 | if (!IsStruct(vector_type)) { |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1086 | field_has_create_set.insert(&field); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1087 | // generate a method to create a vector from a java array. |
| 1088 | if ((vector_type.base_type == BASE_TYPE_CHAR || |
| 1089 | vector_type.base_type == BASE_TYPE_UCHAR)) { |
| 1090 | // Handle byte[] and ByteBuffers separately for Java |
| 1091 | code += " public static " + GenVectorOffsetType() + " "; |
| 1092 | code += "create"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1093 | code += ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1094 | code += "Vector(FlatBufferBuilder builder, byte[] data) "; |
| 1095 | code += "{ return builder.createByteVector(data); }\n"; |
| 1096 | |
| 1097 | code += " public static " + GenVectorOffsetType() + " "; |
| 1098 | code += "create"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1099 | code += ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1100 | code += "Vector(FlatBufferBuilder builder, ByteBuffer data) "; |
| 1101 | code += "{ return builder.createByteVector(data); }\n"; |
| 1102 | } else { |
| 1103 | code += " public static " + GenVectorOffsetType() + " "; |
| 1104 | code += "create"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1105 | code += ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1106 | code += "Vector(FlatBufferBuilder builder, "; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1107 | code += GenTypeBasic(DestinationType(vector_type, false)) + |
| 1108 | "[] data) "; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1109 | code += "{ builder.startVector("; |
| 1110 | code += NumToString(elem_size); |
| 1111 | code += ", data.length, "; |
| 1112 | code += NumToString(alignment); |
| 1113 | code += "); for (int i = data."; |
| 1114 | code += "length - 1; i >= 0; i--) builder."; |
| 1115 | code += "add"; |
| 1116 | code += GenMethod(vector_type); |
| 1117 | code += "("; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1118 | code += SourceCastBasic(vector_type); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1119 | code += "data[i]"; |
| 1120 | code += "); return "; |
| 1121 | code += "builder.endVector(); }\n"; |
| 1122 | } |
| 1123 | } |
| 1124 | // Generate a method to start a vector, data to be added manually |
| 1125 | // after. |
| 1126 | code += " public static void start"; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1127 | code += ConvertCase(field.name, Case::kUpperCamel); |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1128 | code += "Vector(FlatBufferBuilder builder, int numElems) "; |
| 1129 | code += "{ builder.startVector("; |
| 1130 | code += NumToString(elem_size); |
| 1131 | code += ", numElems, " + NumToString(alignment); |
| 1132 | code += "); }\n"; |
| 1133 | } |
| 1134 | } |
| 1135 | code += " public static " + GenOffsetType() + " "; |
| 1136 | code += "end" + struct_def.name; |
| 1137 | code += "(FlatBufferBuilder builder) {\n int o = builder."; |
| 1138 | code += "endTable();\n"; |
| 1139 | for (auto it = struct_def.fields.vec.begin(); |
| 1140 | it != struct_def.fields.vec.end(); ++it) { |
| 1141 | auto &field = **it; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1142 | if (!field.deprecated && field.IsRequired()) { |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1143 | code += " builder.required(o, "; |
| 1144 | code += NumToString(field.value.offset); |
| 1145 | code += "); // " + field.name + "\n"; |
| 1146 | } |
| 1147 | } |
| 1148 | code += " return " + GenOffsetConstruct("o") + ";\n }\n"; |
| 1149 | if (parser_.root_struct_def_ == &struct_def) { |
| 1150 | std::string size_prefix[] = { "", "SizePrefixed" }; |
| 1151 | for (int i = 0; i < 2; ++i) { |
| 1152 | code += " public static void "; |
| 1153 | code += "finish" + size_prefix[i] + struct_def.name; |
| 1154 | code += "Buffer(FlatBufferBuilder builder, " + GenOffsetType(); |
| 1155 | code += " offset) {"; |
| 1156 | code += " builder.finish" + size_prefix[i] + "(offset"; |
| 1157 | |
| 1158 | if (parser_.file_identifier_.length()) |
| 1159 | code += ", \"" + parser_.file_identifier_ + "\""; |
| 1160 | code += "); }\n"; |
| 1161 | } |
| 1162 | } |
| 1163 | } |
| 1164 | // Only generate key compare function for table, |
| 1165 | // because `key_field` is not set for struct |
| 1166 | if (struct_def.has_key && !struct_def.fixed) { |
| 1167 | FLATBUFFERS_ASSERT(key_field); |
| 1168 | code += "\n @Override\n protected int keysCompare("; |
| 1169 | code += "Integer o1, Integer o2, ByteBuffer _bb) {"; |
| 1170 | code += GenKeyGetter(key_field); |
| 1171 | code += " }\n"; |
| 1172 | |
| 1173 | code += "\n public static " + struct_def.name; |
| 1174 | code += " __lookup_by_key("; |
| 1175 | code += struct_def.name + " obj, "; |
| 1176 | code += "int vectorLocation, "; |
| 1177 | code += GenTypeNameDest(key_field->value.type); |
| 1178 | code += " key, ByteBuffer bb) {\n"; |
| 1179 | if (IsString(key_field->value.type)) { |
| 1180 | code += " byte[] byteKey = "; |
| 1181 | code += "key.getBytes(java.nio.charset.StandardCharsets.UTF_8);\n"; |
| 1182 | } |
| 1183 | code += " int span = "; |
| 1184 | code += "bb.getInt(vectorLocation - 4);\n"; |
| 1185 | code += " int start = 0;\n"; |
| 1186 | code += " while (span != 0) {\n"; |
| 1187 | code += " int middle = span / 2;\n"; |
| 1188 | code += GenLookupKeyGetter(key_field); |
| 1189 | code += " if (comp > 0) {\n"; |
| 1190 | code += " span = middle;\n"; |
| 1191 | code += " } else if (comp < 0) {\n"; |
| 1192 | code += " middle++;\n"; |
| 1193 | code += " start += middle;\n"; |
| 1194 | code += " span -= middle;\n"; |
| 1195 | code += " } else {\n"; |
| 1196 | code += " return "; |
| 1197 | code += "(obj == null ? new " + struct_def.name + "() : obj)"; |
| 1198 | code += ".__assign(tableOffset, bb);\n"; |
| 1199 | code += " }\n }\n"; |
| 1200 | code += " return null;\n"; |
| 1201 | code += " }\n"; |
| 1202 | } |
| 1203 | GenVectorAccessObject(struct_def, code_ptr); |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1204 | if (opts.generate_object_based_api) { |
| 1205 | GenPackUnPack_ObjectAPI(struct_def, code_ptr, opts, struct_has_create, |
| 1206 | field_has_create_set); |
| 1207 | } |
| 1208 | code += "}\n\n"; |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1209 | } |
| 1210 | |
| 1211 | std::string GenOptionalScalarCheck(FieldDef &field) const { |
| 1212 | if (!field.IsScalarOptional()) return ""; |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1213 | return " public boolean has" + ConvertCase(field.name, Case::kUpperCamel) + |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 1214 | "() { return 0 != __offset(" + NumToString(field.value.offset) + |
| 1215 | "); }\n"; |
| 1216 | } |
| 1217 | |
| 1218 | void GenVectorAccessObject(StructDef &struct_def, |
| 1219 | std::string *code_ptr) const { |
| 1220 | auto &code = *code_ptr; |
| 1221 | // Generate a vector of structs accessor class. |
| 1222 | code += "\n"; |
| 1223 | code += " "; |
| 1224 | if (!struct_def.attributes.Lookup("private")) code += "public "; |
| 1225 | code += "static "; |
| 1226 | code += "final "; |
| 1227 | code += "class Vector extends "; |
| 1228 | code += "BaseVector {\n"; |
| 1229 | |
| 1230 | // Generate the __assign method that sets the field in a pre-existing |
| 1231 | // accessor object. This is to allow object reuse. |
| 1232 | std::string method_indent = " "; |
| 1233 | code += method_indent + "public Vector "; |
| 1234 | code += "__assign(int _vector, int _element_size, ByteBuffer _bb) { "; |
| 1235 | code += "__reset(_vector, _element_size, _bb); return this; }\n\n"; |
| 1236 | |
| 1237 | auto type_name = struct_def.name; |
| 1238 | auto method_start = method_indent + "public " + type_name + " get"; |
| 1239 | // Generate the accessors that don't do object reuse. |
| 1240 | code += method_start + "(int j) { return get"; |
| 1241 | code += "(new " + type_name + "(), j); }\n"; |
| 1242 | code += method_start + "(" + type_name + " obj, int j) { "; |
| 1243 | code += " return obj.__assign("; |
| 1244 | std::string index = "__element(j)"; |
| 1245 | code += struct_def.fixed ? index : "__indirect(" + index + ", bb)"; |
| 1246 | code += ", bb); }\n"; |
| 1247 | // See if we should generate a by-key accessor. |
| 1248 | if (!struct_def.fixed) { |
| 1249 | auto &fields = struct_def.fields.vec; |
| 1250 | for (auto kit = fields.begin(); kit != fields.end(); ++kit) { |
| 1251 | auto &key_field = **kit; |
| 1252 | if (key_field.key) { |
| 1253 | auto nullable_annotation = |
| 1254 | parser_.opts.gen_nullable ? "@Nullable " : ""; |
| 1255 | code += method_indent + nullable_annotation; |
| 1256 | code += "public " + type_name + " "; |
| 1257 | code += "getByKey("; |
| 1258 | code += GenTypeNameDest(key_field.value.type) + " key) { "; |
| 1259 | code += " return __lookup_by_key(null, "; |
| 1260 | code += "__vector(), key, "; |
| 1261 | code += "bb); "; |
| 1262 | code += "}\n"; |
| 1263 | code += method_indent + nullable_annotation; |
| 1264 | code += "public " + type_name + " "; |
| 1265 | code += "getByKey("; |
| 1266 | code += type_name + " obj, "; |
| 1267 | code += GenTypeNameDest(key_field.value.type) + " key) { "; |
| 1268 | code += " return __lookup_by_key(obj, "; |
| 1269 | code += "__vector(), key, "; |
| 1270 | code += "bb); "; |
| 1271 | code += "}\n"; |
| 1272 | break; |
| 1273 | } |
| 1274 | } |
| 1275 | } |
| 1276 | code += " }\n"; |
| 1277 | } |
| 1278 | |
James Kuszmaul | 8e62b02 | 2022-03-22 09:33:25 -0700 | [diff] [blame^] | 1279 | std::string GenGetterFuncName_ObjectAPI(const std::string &field_name) const { |
| 1280 | return "get" + ConvertCase(field_name, Case::kUpperCamel); |
| 1281 | } |
| 1282 | |
| 1283 | void GenEnum_ObjectAPI(EnumDef &enum_def, std::string *code_ptr, |
| 1284 | const IDLOptions &opts) const { |
| 1285 | auto &code = *code_ptr; |
| 1286 | if (enum_def.generated) return; |
| 1287 | code += "import com.google.flatbuffers.FlatBufferBuilder;\n\n"; |
| 1288 | |
| 1289 | if (!enum_def.attributes.Lookup("private")) { code += "public "; } |
| 1290 | auto union_name = enum_def.name + "Union"; |
| 1291 | auto union_type = |
| 1292 | GenTypeBasic(DestinationType(enum_def.underlying_type, false)); |
| 1293 | code += "class " + union_name + " {\n"; |
| 1294 | // Type |
| 1295 | code += " private " + union_type + " type;\n"; |
| 1296 | // Value |
| 1297 | code += " private Object value;\n"; |
| 1298 | code += "\n"; |
| 1299 | // getters and setters |
| 1300 | code += " public " + union_type + " getType() { return type; }\n\n"; |
| 1301 | code += " public void setType(" + union_type + |
| 1302 | " type) { this.type = type; }\n\n"; |
| 1303 | code += " public Object getValue() { return value; }\n\n"; |
| 1304 | code += " public void setValue(Object value) { this.value = value; }\n\n"; |
| 1305 | // Constructor |
| 1306 | code += " public " + union_name + "() {\n"; |
| 1307 | code += " this.type = " + enum_def.name + "." + |
| 1308 | enum_def.Vals()[0]->name + ";\n"; |
| 1309 | code += " this.value = null;\n"; |
| 1310 | code += " }\n\n"; |
| 1311 | // As |
| 1312 | for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| 1313 | auto &ev = **it; |
| 1314 | if (ev.union_type.base_type == BASE_TYPE_NONE) continue; |
| 1315 | auto type_name = GenTypeGet_ObjectAPI(ev.union_type, opts, false, true); |
| 1316 | if (ev.union_type.base_type == BASE_TYPE_STRUCT && |
| 1317 | ev.union_type.struct_def->attributes.Lookup("private")) { |
| 1318 | code += " "; |
| 1319 | } else { |
| 1320 | code += " public "; |
| 1321 | } |
| 1322 | code += type_name + " as" + ev.name + "() { return (" + type_name + |
| 1323 | ") value; }\n"; |
| 1324 | } |
| 1325 | code += "\n"; |
| 1326 | // pack() |
| 1327 | code += " public static int pack(FlatBufferBuilder builder, " + |
| 1328 | union_name + " _o) {\n"; |
| 1329 | code += " switch (_o.type) {\n"; |
| 1330 | for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| 1331 | auto &ev = **it; |
| 1332 | if (ev.union_type.base_type == BASE_TYPE_NONE) { |
| 1333 | continue; |
| 1334 | } else { |
| 1335 | code += " case " + enum_def.name + "." + ev.name + ": return "; |
| 1336 | if (IsString(ev.union_type)) { |
| 1337 | code += "builder.createString(_o.as" + ev.name + "());\n"; |
| 1338 | } else { |
| 1339 | code += GenTypeGet(ev.union_type) + ".pack(builder, _o.as" + ev.name + |
| 1340 | "());\n"; |
| 1341 | } |
| 1342 | } |
| 1343 | } |
| 1344 | code += " default: return 0;\n"; |
| 1345 | code += " }\n"; |
| 1346 | code += " }\n"; |
| 1347 | code += "}\n\n"; |
| 1348 | } |
| 1349 | |
| 1350 | std::string GenSetterFuncName_ObjectAPI(const std::string &field_name) const { |
| 1351 | return "set" + ConvertCase(field_name, Case::kUpperCamel); |
| 1352 | } |
| 1353 | |
| 1354 | std::string GenTypeName_ObjectAPI(const std::string &name, |
| 1355 | const IDLOptions &opts) const { |
| 1356 | return opts.object_prefix + name + opts.object_suffix; |
| 1357 | } |
| 1358 | |
| 1359 | void GenUnionUnPack_ObjectAPI(const EnumDef &enum_def, std::string *code_ptr, |
| 1360 | const std::string &type_name, |
| 1361 | const std::string &camel_name, |
| 1362 | bool is_vector) const { |
| 1363 | auto &code = *code_ptr; |
| 1364 | |
| 1365 | std::string variable_type = type_name; |
| 1366 | std::string variable_name = |
| 1367 | "_o" + ConvertCase(camel_name, Case::kUpperCamel); |
| 1368 | std::string type_params = ""; |
| 1369 | std::string value_params = ""; |
| 1370 | std::string func_suffix = "()"; |
| 1371 | std::string indent = " "; |
| 1372 | if (is_vector) { |
| 1373 | variable_type = type_name.substr(0, type_name.length() - 2); |
| 1374 | variable_name += "Element"; |
| 1375 | type_params = "_j"; |
| 1376 | value_params = ", _j"; |
| 1377 | func_suffix = "(_j)"; |
| 1378 | indent = " "; |
| 1379 | } |
| 1380 | code += indent + variable_type + " " + variable_name + " = new " + |
| 1381 | variable_type + "();\n"; |
| 1382 | code += indent + |
| 1383 | GenTypeBasic(DestinationType(enum_def.underlying_type, false)) + |
| 1384 | " " + variable_name + "Type = " + camel_name + "Type(" + |
| 1385 | type_params + ");\n"; |
| 1386 | code += indent + variable_name + ".setType(" + variable_name + "Type);\n"; |
| 1387 | code += indent + "Table " + variable_name + "Value;\n"; |
| 1388 | code += indent + "switch (" + variable_name + "Type) {\n"; |
| 1389 | for (auto eit = enum_def.Vals().begin(); eit != enum_def.Vals().end(); |
| 1390 | ++eit) { |
| 1391 | auto &ev = **eit; |
| 1392 | if (ev.union_type.base_type == BASE_TYPE_NONE) { |
| 1393 | continue; |
| 1394 | } else { |
| 1395 | if (ev.union_type.base_type == BASE_TYPE_STRING || |
| 1396 | (ev.union_type.base_type == BASE_TYPE_STRUCT && |
| 1397 | ev.union_type.struct_def->fixed)) { |
| 1398 | continue; // This branch is due to bad implemantation of Unions in |
| 1399 | // Java which doesn't handle non Table types. Should be |
| 1400 | // deleted when issue #6561 is fixed. |
| 1401 | } |
| 1402 | code += indent + " case " + WrapInNameSpace(enum_def) + "." + ev.name + |
| 1403 | ":\n"; |
| 1404 | auto actual_type = GenTypeGet(ev.union_type); |
| 1405 | code += indent + " " + variable_name + "Value = " + camel_name + |
| 1406 | "(new " + actual_type + "()" + value_params + ");\n"; |
| 1407 | code += indent + " " + variable_name + ".setValue(" + variable_name + |
| 1408 | "Value != null ? ((" + actual_type + ") " + variable_name + |
| 1409 | "Value).unpack() : null);\n"; |
| 1410 | code += indent + " break;\n"; |
| 1411 | } |
| 1412 | } |
| 1413 | code += indent + " default: break;\n"; |
| 1414 | code += indent + "}\n"; |
| 1415 | if (is_vector) { |
| 1416 | code += indent + "_o" + ConvertCase(camel_name, Case::kUpperCamel) + |
| 1417 | "[_j] = " + variable_name + ";\n"; |
| 1418 | } |
| 1419 | } |
| 1420 | |
| 1421 | void GenPackUnPack_ObjectAPI( |
| 1422 | StructDef &struct_def, std::string *code_ptr, const IDLOptions &opts, |
| 1423 | bool struct_has_create, |
| 1424 | const std::set<FieldDef *> &field_has_create) const { |
| 1425 | auto &code = *code_ptr; |
| 1426 | auto struct_name = GenTypeName_ObjectAPI(struct_def.name, opts); |
| 1427 | // unpack() |
| 1428 | code += " public " + struct_name + " unpack() {\n"; |
| 1429 | code += " " + struct_name + " _o = new " + struct_name + "();\n"; |
| 1430 | code += " unpackTo(_o);\n"; |
| 1431 | code += " return _o;\n"; |
| 1432 | code += " }\n"; |
| 1433 | // unpackTo() |
| 1434 | code += " public void unpackTo(" + struct_name + " _o) {\n"; |
| 1435 | for (auto it = struct_def.fields.vec.begin(); |
| 1436 | it != struct_def.fields.vec.end(); ++it) { |
| 1437 | auto &field = **it; |
| 1438 | if (field.deprecated) continue; |
| 1439 | if (field.value.type.base_type == BASE_TYPE_UTYPE) continue; |
| 1440 | if (field.value.type.element == BASE_TYPE_UTYPE) continue; |
| 1441 | auto camel_name = ConvertCase(field.name, Case::kLowerCamel); |
| 1442 | auto camel_name_with_first = ConvertCase(field.name, Case::kUpperCamel); |
| 1443 | auto type_name = |
| 1444 | GenTypeGet_ObjectAPI(field.value.type, opts, false, true); |
| 1445 | if (field.IsScalarOptional()) |
| 1446 | type_name = ConvertPrimitiveTypeToObjectWrapper_ObjectAPI(type_name); |
| 1447 | auto start = " " + type_name + " _o" + camel_name_with_first + " = "; |
| 1448 | auto call_setter = true; |
| 1449 | switch (field.value.type.base_type) { |
| 1450 | case BASE_TYPE_STRUCT: { |
| 1451 | auto fixed = struct_def.fixed && field.value.type.struct_def->fixed; |
| 1452 | if (fixed) { |
| 1453 | code += " " + camel_name + "().unpackTo(_o.get" + |
| 1454 | camel_name_with_first + "());\n"; |
| 1455 | } else { |
| 1456 | code += " if (" + camel_name + "() != null) "; |
| 1457 | if (field.value.type.struct_def->fixed) { |
| 1458 | code += camel_name + "().unpackTo(_o.get" + |
| 1459 | camel_name_with_first + "());\n"; |
| 1460 | } else { |
| 1461 | code += "_o." + GenSetterFuncName_ObjectAPI(field.name) + "(" + |
| 1462 | camel_name + "().unpack());\n"; |
| 1463 | } |
| 1464 | code += " else _o." + GenSetterFuncName_ObjectAPI(field.name) + |
| 1465 | "(null);\n"; |
| 1466 | } |
| 1467 | call_setter = false; |
| 1468 | break; |
| 1469 | } |
| 1470 | case BASE_TYPE_ARRAY: { |
| 1471 | auto length_str = NumToString(field.value.type.fixed_length); |
| 1472 | auto unpack_method = |
| 1473 | field.value.type.struct_def == nullptr ? "" : ".unpack()"; |
| 1474 | code += |
| 1475 | start + "_o." + GenGetterFuncName_ObjectAPI(field.name) + "();\n"; |
| 1476 | code += " for (int _j = 0; _j < " + length_str + "; ++_j) { _o" + |
| 1477 | camel_name_with_first + "[_j] = " + camel_name + "(_j)" + |
| 1478 | unpack_method + "; }\n"; |
| 1479 | call_setter = false; |
| 1480 | break; |
| 1481 | } |
| 1482 | case BASE_TYPE_VECTOR: |
| 1483 | if (field.value.type.element == BASE_TYPE_UNION) { |
| 1484 | code += start + "new " + |
| 1485 | GenConcreteTypeGet_ObjectAPI(field.value.type, opts) |
| 1486 | .substr(0, type_name.length() - 1) + |
| 1487 | camel_name + "Length()];\n"; |
| 1488 | code += " for (int _j = 0; _j < " + camel_name + |
| 1489 | "Length(); ++_j) {\n"; |
| 1490 | GenUnionUnPack_ObjectAPI(*field.value.type.enum_def, code_ptr, |
| 1491 | type_name, camel_name, true); |
| 1492 | code += " }\n"; |
| 1493 | } else if (field.value.type.element != BASE_TYPE_UTYPE) { |
| 1494 | auto fixed = field.value.type.struct_def == nullptr; |
| 1495 | code += start + "new " + |
| 1496 | GenConcreteTypeGet_ObjectAPI(field.value.type, opts) |
| 1497 | .substr(0, type_name.length() - 1) + |
| 1498 | camel_name + "Length()];\n"; |
| 1499 | code += |
| 1500 | " for (int _j = 0; _j < " + camel_name + "Length(); ++_j) {"; |
| 1501 | code += "_o" + camel_name_with_first + "[_j] = "; |
| 1502 | if (fixed) { |
| 1503 | code += camel_name + "(_j)"; |
| 1504 | } else { |
| 1505 | code += "(" + camel_name + "(_j) != null ? " + camel_name + |
| 1506 | "(_j).unpack() : null)"; |
| 1507 | } |
| 1508 | code += ";}\n"; |
| 1509 | } |
| 1510 | break; |
| 1511 | case BASE_TYPE_UTYPE: break; |
| 1512 | case BASE_TYPE_UNION: { |
| 1513 | GenUnionUnPack_ObjectAPI(*field.value.type.enum_def, code_ptr, |
| 1514 | type_name, camel_name, false); |
| 1515 | break; |
| 1516 | } |
| 1517 | default: { |
| 1518 | if (field.IsScalarOptional()) { |
| 1519 | code += start + "has" + camel_name_with_first + "() ? " + |
| 1520 | camel_name + "() : null;\n"; |
| 1521 | } else { |
| 1522 | code += start + camel_name + "();\n"; |
| 1523 | } |
| 1524 | break; |
| 1525 | } |
| 1526 | } |
| 1527 | if (call_setter) { |
| 1528 | code += " _o." + GenSetterFuncName_ObjectAPI(field.name) + "(_o" + |
| 1529 | camel_name_with_first + ");\n"; |
| 1530 | } |
| 1531 | } |
| 1532 | code += " }\n"; |
| 1533 | // pack() |
| 1534 | code += " public static " + GenOffsetType() + |
| 1535 | " pack(FlatBufferBuilder builder, " + struct_name + " _o) {\n"; |
| 1536 | code += " if (_o == null) return 0;\n"; |
| 1537 | for (auto it = struct_def.fields.vec.begin(); |
| 1538 | it != struct_def.fields.vec.end(); ++it) { |
| 1539 | auto &field = **it; |
| 1540 | if (field.deprecated) continue; |
| 1541 | auto camel_name = ConvertCase(field.name, Case::kLowerCamel); |
| 1542 | auto camel_name_with_first = ConvertCase(field.name, Case::kUpperCamel); |
| 1543 | // pre |
| 1544 | switch (field.value.type.base_type) { |
| 1545 | case BASE_TYPE_STRUCT: { |
| 1546 | if (!field.value.type.struct_def->fixed) { |
| 1547 | code += " " + GenOffsetType() + " _" + field.name + " = _o." + |
| 1548 | GenGetterFuncName_ObjectAPI(field.name) + |
| 1549 | "() == null ? 0 : " + GenTypeGet(field.value.type) + |
| 1550 | ".pack(builder, _o." + |
| 1551 | GenGetterFuncName_ObjectAPI(field.name) + "());\n"; |
| 1552 | } else if (struct_def.fixed && struct_has_create) { |
| 1553 | std::vector<FieldArrayLength> array_lengths; |
| 1554 | FieldArrayLength tmp_array_length = { |
| 1555 | field.name, |
| 1556 | field.value.type.fixed_length, |
| 1557 | }; |
| 1558 | array_lengths.push_back(tmp_array_length); |
| 1559 | GenStructPackDecl_ObjectAPI(*field.value.type.struct_def, code_ptr, |
| 1560 | array_lengths); |
| 1561 | } |
| 1562 | break; |
| 1563 | } |
| 1564 | case BASE_TYPE_STRING: { |
| 1565 | std::string create_string = "createString"; |
| 1566 | code += " int _" + camel_name + " = _o." + |
| 1567 | GenGetterFuncName_ObjectAPI(field.name) + |
| 1568 | "() == null ? 0 : " |
| 1569 | "builder." + |
| 1570 | create_string + "(_o." + |
| 1571 | GenGetterFuncName_ObjectAPI(field.name) + "());\n"; |
| 1572 | break; |
| 1573 | } |
| 1574 | case BASE_TYPE_VECTOR: { |
| 1575 | if (field_has_create.find(&field) != field_has_create.end()) { |
| 1576 | auto property_name = camel_name; |
| 1577 | auto gen_for_loop = true; |
| 1578 | std::string array_name = "__" + camel_name; |
| 1579 | std::string array_type = ""; |
| 1580 | std::string element_type = ""; |
| 1581 | std::string to_array = ""; |
| 1582 | switch (field.value.type.element) { |
| 1583 | case BASE_TYPE_STRING: { |
| 1584 | std::string create_string = "createString"; |
| 1585 | array_type = "int"; |
| 1586 | element_type = "String"; |
| 1587 | to_array += "builder." + create_string + "(_e)"; |
| 1588 | break; |
| 1589 | } |
| 1590 | case BASE_TYPE_STRUCT: |
| 1591 | array_type = "int"; |
| 1592 | element_type = |
| 1593 | GenTypeGet_ObjectAPI(field.value.type, opts, true, true); |
| 1594 | ; |
| 1595 | to_array = GenTypeGet(field.value.type) + ".pack(builder, _e)"; |
| 1596 | break; |
| 1597 | case BASE_TYPE_UTYPE: |
| 1598 | property_name = camel_name.substr(0, camel_name.size() - 4); |
| 1599 | array_type = GenTypeBasic(DestinationType( |
| 1600 | field.value.type.enum_def->underlying_type, false)); |
| 1601 | element_type = field.value.type.enum_def->name + "Union"; |
| 1602 | to_array = "_o." + GenGetterFuncName_ObjectAPI(property_name) + |
| 1603 | "()[_j].getType()"; |
| 1604 | break; |
| 1605 | case BASE_TYPE_UNION: |
| 1606 | array_type = "int"; |
| 1607 | element_type = |
| 1608 | WrapInNameSpace(*field.value.type.enum_def) + "Union"; |
| 1609 | to_array = WrapInNameSpace(*field.value.type.enum_def) + |
| 1610 | "Union.pack(builder, _o." + |
| 1611 | GenGetterFuncName_ObjectAPI(property_name) + |
| 1612 | "()[_j])"; |
| 1613 | break; |
| 1614 | case BASE_TYPE_UCHAR: // TODO this branch of the switch is due to |
| 1615 | // inconsistent behavior in unsigned byte. |
| 1616 | // Read further at Issue #6574. |
| 1617 | array_type = "byte"; |
| 1618 | element_type = "int"; |
| 1619 | to_array = "(byte) _e"; |
| 1620 | break; |
| 1621 | default: |
| 1622 | gen_for_loop = false; |
| 1623 | array_name = |
| 1624 | "_o." + GenGetterFuncName_ObjectAPI(property_name) + "()"; |
| 1625 | array_type = GenTypeNameDest(field.value.type); |
| 1626 | element_type = array_type; |
| 1627 | to_array = "_e"; |
| 1628 | break; |
| 1629 | } |
| 1630 | code += " int _" + camel_name + " = 0;\n"; |
| 1631 | code += " if (_o." + GenGetterFuncName_ObjectAPI(property_name) + |
| 1632 | "() != null) {\n"; |
| 1633 | if (gen_for_loop) { |
| 1634 | code += " " + array_type + "[] " + array_name + " = new " + |
| 1635 | array_type + "[_o." + |
| 1636 | GenGetterFuncName_ObjectAPI(property_name) + |
| 1637 | "().length];\n"; |
| 1638 | code += " int _j = 0;\n"; |
| 1639 | code += " for (" + element_type + " _e : _o." + |
| 1640 | GenGetterFuncName_ObjectAPI(property_name) + "()) { "; |
| 1641 | code += array_name + "[_j] = " + to_array + "; _j++;}\n"; |
| 1642 | } |
| 1643 | code += " _" + camel_name + " = create" + |
| 1644 | camel_name_with_first + "Vector(builder, " + array_name + |
| 1645 | ");\n"; |
| 1646 | code += " }\n"; |
| 1647 | } else { |
| 1648 | auto type_name = GenTypeGet(field.value.type); |
| 1649 | auto element_type_name = |
| 1650 | GenTypeGet_ObjectAPI(field.value.type, opts, true, true); |
| 1651 | auto pack_method = |
| 1652 | field.value.type.struct_def == nullptr |
| 1653 | ? "builder.add" + GenMethod(field.value.type.VectorType()) + |
| 1654 | "(_o" + camel_name_with_first + "[_j]);" |
| 1655 | : type_name + ".pack(builder, _o" + camel_name_with_first + |
| 1656 | "[_j]);"; |
| 1657 | code += " int _" + camel_name + " = 0;\n"; |
| 1658 | code += " " + element_type_name + "[] _o" + |
| 1659 | camel_name_with_first + " = _o." + |
| 1660 | GenGetterFuncName_ObjectAPI(field.name) + "();\n"; |
| 1661 | code += " if (_o" + camel_name_with_first + " != null) {\n"; |
| 1662 | code += " start" + camel_name_with_first + |
| 1663 | "Vector(builder, _o" + camel_name_with_first + |
| 1664 | ".length);\n"; |
| 1665 | code += " for (int _j = _o" + camel_name_with_first + |
| 1666 | ".length - 1; _j >=0; _j--) { "; |
| 1667 | code += pack_method + "}\n"; |
| 1668 | code += " _" + camel_name + " = builder.endVector();\n"; |
| 1669 | code += " }\n"; |
| 1670 | } |
| 1671 | break; |
| 1672 | } |
| 1673 | case BASE_TYPE_ARRAY: { |
| 1674 | if (field.value.type.struct_def != nullptr) { |
| 1675 | std::vector<FieldArrayLength> array_lengths; |
| 1676 | FieldArrayLength tmp_array_length = { |
| 1677 | field.name, |
| 1678 | field.value.type.fixed_length, |
| 1679 | }; |
| 1680 | array_lengths.push_back(tmp_array_length); |
| 1681 | GenStructPackDecl_ObjectAPI(*field.value.type.struct_def, code_ptr, |
| 1682 | array_lengths); |
| 1683 | } else { |
| 1684 | code += " " + |
| 1685 | GenTypeGet_ObjectAPI(field.value.type, opts, false, true) + |
| 1686 | " _" + camel_name + " = _o." + |
| 1687 | GenGetterFuncName_ObjectAPI(field.name) + "();\n"; |
| 1688 | } |
| 1689 | break; |
| 1690 | } |
| 1691 | case BASE_TYPE_UNION: { |
| 1692 | code += |
| 1693 | " " + |
| 1694 | GenTypeBasic(DestinationType( |
| 1695 | field.value.type.enum_def->underlying_type, false)) + |
| 1696 | " _" + camel_name + "Type = _o.get" + camel_name_with_first + |
| 1697 | "() == null ? " + WrapInNameSpace(*field.value.type.enum_def) + |
| 1698 | ".NONE : " + "_o.get" + camel_name_with_first + "().getType();\n"; |
| 1699 | code += " " + GenOffsetType() + " _" + camel_name + " = _o.get" + |
| 1700 | camel_name_with_first + "() == null ? 0 : " + |
| 1701 | WrapInNameSpace(*field.value.type.enum_def) + |
| 1702 | "Union.pack(builder, _o.get" + camel_name_with_first + |
| 1703 | "());\n"; |
| 1704 | break; |
| 1705 | } |
| 1706 | default: break; |
| 1707 | } |
| 1708 | } |
| 1709 | if (struct_has_create) { |
| 1710 | // Create |
| 1711 | code += " return create" + struct_def.name + "(\n"; |
| 1712 | code += " builder"; |
| 1713 | for (auto it = struct_def.fields.vec.begin(); |
| 1714 | it != struct_def.fields.vec.end(); ++it) { |
| 1715 | auto &field = **it; |
| 1716 | if (field.deprecated) continue; |
| 1717 | auto camel_name = ConvertCase(field.name, Case::kLowerCamel); |
| 1718 | switch (field.value.type.base_type) { |
| 1719 | case BASE_TYPE_STRUCT: { |
| 1720 | if (struct_def.fixed) { |
| 1721 | GenStructPackCall_ObjectAPI(*field.value.type.struct_def, |
| 1722 | code_ptr, |
| 1723 | " _" + camel_name + "_"); |
| 1724 | } else { |
| 1725 | code += ",\n"; |
| 1726 | if (field.value.type.struct_def->fixed) { |
| 1727 | if (opts.generate_object_based_api) |
| 1728 | code += " _o." + camel_name; |
| 1729 | else |
| 1730 | // Seems like unreachable code |
| 1731 | code += " " + GenTypeGet(field.value.type) + |
| 1732 | ".Pack(builder, _o." + camel_name + ")"; |
| 1733 | } else { |
| 1734 | code += " _" + field.name; |
| 1735 | } |
| 1736 | } |
| 1737 | break; |
| 1738 | } |
| 1739 | case BASE_TYPE_ARRAY: { |
| 1740 | if (field.value.type.struct_def != nullptr) { |
| 1741 | GenStructPackCall_ObjectAPI(*field.value.type.struct_def, |
| 1742 | code_ptr, |
| 1743 | " _" + camel_name + "_"); |
| 1744 | } else { |
| 1745 | code += ",\n"; |
| 1746 | code += " _" + camel_name; |
| 1747 | } |
| 1748 | break; |
| 1749 | } |
| 1750 | case BASE_TYPE_UNION: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1751 | case BASE_TYPE_UTYPE: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1752 | case BASE_TYPE_STRING: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1753 | case BASE_TYPE_VECTOR: { |
| 1754 | code += ",\n"; |
| 1755 | code += " _" + camel_name; |
| 1756 | break; |
| 1757 | } |
| 1758 | default: // scalar |
| 1759 | code += ",\n"; |
| 1760 | code += |
| 1761 | " _o." + GenGetterFuncName_ObjectAPI(field.name) + "()"; |
| 1762 | break; |
| 1763 | } |
| 1764 | } |
| 1765 | code += ");\n"; |
| 1766 | } else { |
| 1767 | // Start, End |
| 1768 | code += " start" + struct_def.name + "(builder);\n"; |
| 1769 | for (auto it = struct_def.fields.vec.begin(); |
| 1770 | it != struct_def.fields.vec.end(); ++it) { |
| 1771 | auto &field = **it; |
| 1772 | if (field.deprecated) continue; |
| 1773 | auto camel_name = ConvertCase(field.name, Case::kLowerCamel); |
| 1774 | auto camel_name_with_first = ConvertCase(field.name, Case::kUpperCamel); |
| 1775 | switch (field.value.type.base_type) { |
| 1776 | case BASE_TYPE_STRUCT: { |
| 1777 | if (field.value.type.struct_def->fixed) { |
| 1778 | code += " add" + camel_name_with_first + "(builder, " + |
| 1779 | GenTypeGet(field.value.type) + ".pack(builder, _o." + |
| 1780 | GenGetterFuncName_ObjectAPI(field.name) + "()));\n"; |
| 1781 | } else { |
| 1782 | code += " add" + camel_name_with_first + "(builder, _" + |
| 1783 | field.name + ");\n"; |
| 1784 | } |
| 1785 | break; |
| 1786 | } |
| 1787 | case BASE_TYPE_STRING: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1788 | case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1789 | case BASE_TYPE_VECTOR: { |
| 1790 | code += " add" + camel_name_with_first + "(builder, _" + |
| 1791 | camel_name + ");\n"; |
| 1792 | break; |
| 1793 | } |
| 1794 | case BASE_TYPE_UTYPE: break; |
| 1795 | case BASE_TYPE_UNION: { |
| 1796 | code += " add" + camel_name_with_first + "Type(builder, _" + |
| 1797 | camel_name + "Type);\n"; |
| 1798 | code += " add" + camel_name_with_first + "(builder, _" + |
| 1799 | camel_name + ");\n"; |
| 1800 | break; |
| 1801 | } |
| 1802 | // scalar |
| 1803 | default: { |
| 1804 | if (field.IsScalarOptional()) { |
| 1805 | code += " if (_o." + GenGetterFuncName_ObjectAPI(field.name) + |
| 1806 | "() != null) { add" + camel_name_with_first + |
| 1807 | "(builder, _o." + |
| 1808 | GenGetterFuncName_ObjectAPI(field.name) + "()); }\n"; |
| 1809 | } else { |
| 1810 | code += " add" + camel_name_with_first + "(builder, _o." + |
| 1811 | GenGetterFuncName_ObjectAPI(field.name) + "());\n"; |
| 1812 | } |
| 1813 | break; |
| 1814 | } |
| 1815 | } |
| 1816 | } |
| 1817 | code += " return end" + struct_def.name + "(builder);\n"; |
| 1818 | } |
| 1819 | code += " }\n"; |
| 1820 | } |
| 1821 | |
| 1822 | void GenStructPackDecl_ObjectAPI( |
| 1823 | const StructDef &struct_def, std::string *code_ptr, |
| 1824 | std::vector<FieldArrayLength> &array_lengths) const { |
| 1825 | auto &code = *code_ptr; |
| 1826 | for (auto it = struct_def.fields.vec.begin(); |
| 1827 | it != struct_def.fields.vec.end(); ++it) { |
| 1828 | auto &field = **it; |
| 1829 | auto is_array = IsArray(field.value.type); |
| 1830 | const auto &field_type = |
| 1831 | is_array ? field.value.type.VectorType() : field.value.type; |
| 1832 | FieldArrayLength tmp_array_length = { |
| 1833 | field.name, |
| 1834 | field_type.fixed_length, |
| 1835 | }; |
| 1836 | array_lengths.push_back(tmp_array_length); |
| 1837 | if (field_type.struct_def != nullptr) { |
| 1838 | GenStructPackDecl_ObjectAPI(*field_type.struct_def, code_ptr, |
| 1839 | array_lengths); |
| 1840 | } else { |
| 1841 | std::vector<FieldArrayLength> array_only_lengths; |
| 1842 | for (size_t i = 0; i < array_lengths.size(); ++i) { |
| 1843 | if (array_lengths[i].length > 0) { |
| 1844 | array_only_lengths.push_back(array_lengths[i]); |
| 1845 | } |
| 1846 | } |
| 1847 | std::string name; |
| 1848 | for (size_t i = 0; i < array_lengths.size(); ++i) { |
| 1849 | name += "_" + ConvertCase(array_lengths[i].name, Case::kLowerCamel); |
| 1850 | } |
| 1851 | code += " " + GenTypeBasic(field_type); |
| 1852 | if (array_only_lengths.size() > 0) { |
| 1853 | for (size_t i = 0; i < array_only_lengths.size(); ++i) { |
| 1854 | code += "[]"; |
| 1855 | } |
| 1856 | code += " " + name + " = "; |
| 1857 | code += "new " + GenTypeBasic(field_type) + "["; |
| 1858 | for (size_t i = 0; i < array_only_lengths.size(); ++i) { |
| 1859 | if (i != 0) { code += "]["; } |
| 1860 | code += NumToString(array_only_lengths[i].length); |
| 1861 | } |
| 1862 | code += "];\n"; |
| 1863 | code += " "; |
| 1864 | // initialize array |
| 1865 | for (size_t i = 0; i < array_only_lengths.size(); ++i) { |
| 1866 | auto idx = "idx" + NumToString(i); |
| 1867 | code += "for (int " + idx + " = 0; " + idx + " < " + |
| 1868 | NumToString(array_only_lengths[i].length) + "; ++" + idx + |
| 1869 | ") {"; |
| 1870 | } |
| 1871 | for (size_t i = 0; i < array_only_lengths.size(); ++i) { |
| 1872 | auto idx = "idx" + NumToString(i); |
| 1873 | if (i == 0) { |
| 1874 | code += name + "[" + idx; |
| 1875 | } else { |
| 1876 | code += "][" + idx; |
| 1877 | } |
| 1878 | } |
| 1879 | code += "] = _o"; |
| 1880 | for (size_t i = 0, j = 0; i < array_lengths.size(); ++i) { |
| 1881 | code += |
| 1882 | "." + GenGetterFuncName_ObjectAPI(array_lengths[i].name) + "()"; |
| 1883 | if (array_lengths[i].length <= 0) continue; |
| 1884 | code += "[idx" + NumToString(j++) + "]"; |
| 1885 | } |
| 1886 | code += ";"; |
| 1887 | for (size_t i = 0; i < array_only_lengths.size(); ++i) { |
| 1888 | code += "}"; |
| 1889 | } |
| 1890 | } else { |
| 1891 | code += " " + name + " = "; |
| 1892 | code += "_o"; |
| 1893 | for (size_t i = 0; i < array_lengths.size(); ++i) { |
| 1894 | code += |
| 1895 | "." + GenGetterFuncName_ObjectAPI(array_lengths[i].name) + "()"; |
| 1896 | } |
| 1897 | code += ";"; |
| 1898 | } |
| 1899 | code += "\n"; |
| 1900 | } |
| 1901 | array_lengths.pop_back(); |
| 1902 | } |
| 1903 | } |
| 1904 | |
| 1905 | void GenStructPackCall_ObjectAPI(const StructDef &struct_def, |
| 1906 | std::string *code_ptr, |
| 1907 | std::string prefix) const { |
| 1908 | auto &code = *code_ptr; |
| 1909 | for (auto it = struct_def.fields.vec.begin(); |
| 1910 | it != struct_def.fields.vec.end(); ++it) { |
| 1911 | auto &field = **it; |
| 1912 | const auto &field_type = field.value.type; |
| 1913 | if (field_type.struct_def != nullptr) { |
| 1914 | GenStructPackCall_ObjectAPI( |
| 1915 | *field_type.struct_def, code_ptr, |
| 1916 | prefix + ConvertCase(field.name, Case::kLowerCamel) + "_"); |
| 1917 | } else { |
| 1918 | code += ",\n"; |
| 1919 | code += prefix + ConvertCase(field.name, Case::kLowerCamel); |
| 1920 | } |
| 1921 | } |
| 1922 | } |
| 1923 | |
| 1924 | std::string ConvertPrimitiveTypeToObjectWrapper_ObjectAPI( |
| 1925 | std::string type_name) const { |
| 1926 | if (type_name == "boolean") |
| 1927 | return "Boolean"; |
| 1928 | else if (type_name == "byte") |
| 1929 | return "Byte"; |
| 1930 | else if (type_name == "char") |
| 1931 | return "Character"; |
| 1932 | else if (type_name == "short") |
| 1933 | return "Short"; |
| 1934 | else if (type_name == "int") |
| 1935 | return "Integer"; |
| 1936 | else if (type_name == "long") |
| 1937 | return "Long"; |
| 1938 | else if (type_name == "float") |
| 1939 | return "Float"; |
| 1940 | else if (type_name == "double") |
| 1941 | return "Double"; |
| 1942 | return type_name; |
| 1943 | } |
| 1944 | |
| 1945 | std::string GenTypeGet_ObjectAPI(flatbuffers::Type type, |
| 1946 | const IDLOptions &opts, bool vectorelem, |
| 1947 | bool wrap_in_namespace) const { |
| 1948 | auto type_name = GenTypeNameDest(type); |
| 1949 | // Replace to ObjectBaseAPI Type Name |
| 1950 | switch (type.base_type) { |
| 1951 | case BASE_TYPE_STRUCT: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1952 | case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1953 | case BASE_TYPE_VECTOR: { |
| 1954 | if (type.struct_def != nullptr) { |
| 1955 | auto type_name_length = type.struct_def->name.length(); |
| 1956 | auto new_type_name = |
| 1957 | GenTypeName_ObjectAPI(type.struct_def->name, opts); |
| 1958 | type_name.replace(type_name.length() - type_name_length, |
| 1959 | type_name_length, new_type_name); |
| 1960 | } else if (type.element == BASE_TYPE_UNION) { |
| 1961 | if (wrap_in_namespace) { |
| 1962 | type_name = WrapInNameSpace(*type.enum_def) + "Union"; |
| 1963 | } else { |
| 1964 | type_name = type.enum_def->name + "Union"; |
| 1965 | } |
| 1966 | } |
| 1967 | break; |
| 1968 | } |
| 1969 | |
| 1970 | case BASE_TYPE_UNION: { |
| 1971 | if (wrap_in_namespace) { |
| 1972 | type_name = WrapInNameSpace(*type.enum_def) + "Union"; |
| 1973 | } else { |
| 1974 | type_name = type.enum_def->name + "Union"; |
| 1975 | } |
| 1976 | break; |
| 1977 | } |
| 1978 | default: break; |
| 1979 | } |
| 1980 | if (vectorelem) { return type_name; } |
| 1981 | switch (type.base_type) { |
| 1982 | case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1983 | case BASE_TYPE_VECTOR: { |
| 1984 | type_name = type_name + "[]"; |
| 1985 | break; |
| 1986 | } |
| 1987 | default: break; |
| 1988 | } |
| 1989 | return type_name; |
| 1990 | } |
| 1991 | |
| 1992 | std::string GenConcreteTypeGet_ObjectAPI(flatbuffers::Type type, |
| 1993 | const IDLOptions &opts) const { |
| 1994 | auto type_name = GenTypeNameDest(type); |
| 1995 | // Replace to ObjectBaseAPI Type Name |
| 1996 | switch (type.base_type) { |
| 1997 | case BASE_TYPE_STRUCT: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1998 | case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 1999 | case BASE_TYPE_VECTOR: { |
| 2000 | if (type.struct_def != nullptr) { |
| 2001 | auto type_name_length = type.struct_def->name.length(); |
| 2002 | auto new_type_name = |
| 2003 | GenTypeName_ObjectAPI(type.struct_def->name, opts); |
| 2004 | type_name.replace(type_name.length() - type_name_length, |
| 2005 | type_name_length, new_type_name); |
| 2006 | } else if (type.element == BASE_TYPE_UNION) { |
| 2007 | type_name = WrapInNameSpace(*type.enum_def) + "Union"; |
| 2008 | } |
| 2009 | break; |
| 2010 | } |
| 2011 | |
| 2012 | case BASE_TYPE_UNION: { |
| 2013 | type_name = WrapInNameSpace(*type.enum_def) + "Union"; |
| 2014 | break; |
| 2015 | } |
| 2016 | default: break; |
| 2017 | } |
| 2018 | |
| 2019 | switch (type.base_type) { |
| 2020 | case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| 2021 | case BASE_TYPE_VECTOR: { |
| 2022 | type_name = type_name + "[]"; |
| 2023 | break; |
| 2024 | } |
| 2025 | default: break; |
| 2026 | } |
| 2027 | return type_name; |
| 2028 | } |
| 2029 | |
| 2030 | void GenStruct_ObjectAPI(StructDef &struct_def, std::string *code_ptr, |
| 2031 | const IDLOptions &opts) const { |
| 2032 | if (struct_def.generated) return; |
| 2033 | auto &code = *code_ptr; |
| 2034 | if (struct_def.attributes.Lookup("private")) { |
| 2035 | // For Java, we leave the enum unmarked to indicate package-private |
| 2036 | } else { |
| 2037 | code += "public "; |
| 2038 | } |
| 2039 | |
| 2040 | auto class_name = GenTypeName_ObjectAPI(struct_def.name, opts); |
| 2041 | code += "class " + class_name; |
| 2042 | code += " {\n"; |
| 2043 | // Generate Properties |
| 2044 | for (auto it = struct_def.fields.vec.begin(); |
| 2045 | it != struct_def.fields.vec.end(); ++it) { |
| 2046 | auto &field = **it; |
| 2047 | if (field.deprecated) continue; |
| 2048 | if (field.value.type.base_type == BASE_TYPE_UTYPE) continue; |
| 2049 | if (field.value.type.element == BASE_TYPE_UTYPE) continue; |
| 2050 | auto type_name = |
| 2051 | GenTypeGet_ObjectAPI(field.value.type, opts, false, true); |
| 2052 | if (field.IsScalarOptional()) |
| 2053 | type_name = ConvertPrimitiveTypeToObjectWrapper_ObjectAPI(type_name); |
| 2054 | auto camel_name = ConvertCase(field.name, Case::kLowerCamel); |
| 2055 | code += " private " + type_name + " " + camel_name + ";\n"; |
| 2056 | } |
| 2057 | // Generate Java getters and setters |
| 2058 | code += "\n"; |
| 2059 | for (auto it = struct_def.fields.vec.begin(); |
| 2060 | it != struct_def.fields.vec.end(); ++it) { |
| 2061 | auto &field = **it; |
| 2062 | if (field.deprecated) continue; |
| 2063 | if (field.value.type.base_type == BASE_TYPE_UTYPE) continue; |
| 2064 | if (field.value.type.element == BASE_TYPE_UTYPE) continue; |
| 2065 | auto type_name = |
| 2066 | GenTypeGet_ObjectAPI(field.value.type, opts, false, true); |
| 2067 | if (field.IsScalarOptional()) |
| 2068 | type_name = ConvertPrimitiveTypeToObjectWrapper_ObjectAPI(type_name); |
| 2069 | auto camel_name = ConvertCase(field.name, Case::kLowerCamel); |
| 2070 | code += " public " + type_name + " " + |
| 2071 | GenGetterFuncName_ObjectAPI(field.name) + "() { return " + |
| 2072 | camel_name + "; }\n\n"; |
| 2073 | std::string array_validation = ""; |
| 2074 | if (field.value.type.base_type == BASE_TYPE_ARRAY) { |
| 2075 | array_validation = |
| 2076 | "if (" + camel_name + " != null && " + camel_name + |
| 2077 | ".length == " + NumToString(field.value.type.fixed_length) + ") "; |
| 2078 | } |
| 2079 | code += " public void " + GenSetterFuncName_ObjectAPI(field.name) + "(" + |
| 2080 | type_name + " " + camel_name + ") { " + array_validation + |
| 2081 | "this." + camel_name + " = " + camel_name + "; }\n\n"; |
| 2082 | } |
| 2083 | // Generate Constructor |
| 2084 | code += "\n"; |
| 2085 | code += " public " + class_name + "() {\n"; |
| 2086 | for (auto it = struct_def.fields.vec.begin(); |
| 2087 | it != struct_def.fields.vec.end(); ++it) { |
| 2088 | auto &field = **it; |
| 2089 | if (field.deprecated) continue; |
| 2090 | if (field.value.type.base_type == BASE_TYPE_UTYPE) continue; |
| 2091 | if (field.value.type.element == BASE_TYPE_UTYPE) continue; |
| 2092 | code += " this." + ConvertCase(field.name, Case::kLowerCamel) + " = "; |
| 2093 | auto type_name = |
| 2094 | GenTypeGet_ObjectAPI(field.value.type, opts, false, true); |
| 2095 | if (IsScalar(field.value.type.base_type)) { |
| 2096 | if (field.IsScalarOptional()) { |
| 2097 | code += "null;\n"; |
| 2098 | } else { |
| 2099 | code += GenDefaultValue(field) + ";\n"; |
| 2100 | } |
| 2101 | } else { |
| 2102 | switch (field.value.type.base_type) { |
| 2103 | case BASE_TYPE_STRUCT: { |
| 2104 | if (IsStruct(field.value.type)) { |
| 2105 | code += "new " + type_name + "();\n"; |
| 2106 | } else { |
| 2107 | code += "null;\n"; |
| 2108 | } |
| 2109 | break; |
| 2110 | } |
| 2111 | case BASE_TYPE_ARRAY: { |
| 2112 | code += "new " + type_name.substr(0, type_name.length() - 1) + |
| 2113 | NumToString(field.value.type.fixed_length) + "];\n"; |
| 2114 | break; |
| 2115 | } |
| 2116 | default: { |
| 2117 | code += "null;\n"; |
| 2118 | break; |
| 2119 | } |
| 2120 | } |
| 2121 | } |
| 2122 | } |
| 2123 | code += " }\n"; |
| 2124 | if (parser_.root_struct_def_ == &struct_def) { |
| 2125 | code += " public static " + class_name + |
| 2126 | " deserializeFromBinary(byte[] fbBuffer) {\n"; |
| 2127 | code += " return " + struct_def.name + ".getRootAs" + struct_def.name + |
| 2128 | "(ByteBuffer.wrap(fbBuffer)).unpack();\n"; |
| 2129 | code += " }\n"; |
| 2130 | code += " public byte[] serializeToBinary() {\n"; |
| 2131 | code += " FlatBufferBuilder fbb = new FlatBufferBuilder();\n"; |
| 2132 | code += " " + struct_def.name + ".finish" + struct_def.name + |
| 2133 | "Buffer(fbb, " + struct_def.name + ".pack(fbb, this));\n"; |
| 2134 | code += " return fbb.sizedByteArray();\n"; |
| 2135 | code += " }\n"; |
| 2136 | } |
| 2137 | code += "}\n\n"; |
| 2138 | } |
| 2139 | |
Austin Schuh | 272c613 | 2020-11-14 16:37:52 -0800 | [diff] [blame] | 2140 | // This tracks the current namespace used to determine if a type need to be |
| 2141 | // prefixed by its namespace |
| 2142 | const Namespace *cur_name_space_; |
| 2143 | }; |
| 2144 | } // namespace java |
| 2145 | |
| 2146 | bool GenerateJava(const Parser &parser, const std::string &path, |
| 2147 | const std::string &file_name) { |
| 2148 | java::JavaGenerator generator(parser, path, file_name); |
| 2149 | return generator.generate(); |
| 2150 | } |
| 2151 | |
| 2152 | } // namespace flatbuffers |