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| 1 // Protocol Buffers - Google's data interchange format | |
| 2 // Copyright 2008 Google Inc. All rights reserved. | |
| 3 // http://code.google.com/p/protobuf/ | |
| 4 // | |
| 5 // Redistribution and use in source and binary forms, with or without | |
| 6 // modification, are permitted provided that the following conditions are | |
| 7 // met: | |
| 8 // | |
| 9 // * Redistributions of source code must retain the above copyright | |
| 10 // notice, this list of conditions and the following disclaimer. | |
| 11 // * Redistributions in binary form must reproduce the above | |
| 12 // copyright notice, this list of conditions and the following disclaimer | |
| 13 // in the documentation and/or other materials provided with the | |
| 14 // distribution. | |
| 15 // * Neither the name of Google Inc. nor the names of its | |
| 16 // contributors may be used to endorse or promote products derived from | |
| 17 // this software without specific prior written permission. | |
| 18 // | |
| 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 30 | |
| 31 // Author: kenton@google.com (Kenton Varda) | |
| 32 // Based on original Protocol Buffers design by | |
| 33 // Sanjay Ghemawat, Jeff Dean, and others. | |
| 34 | |
| 35 #include <limits> | |
| 36 #include <vector> | |
| 37 | |
| 38 #include <google/protobuf/compiler/java/java_helpers.h> | |
| 39 #include <google/protobuf/descriptor.pb.h> | |
| 40 #include <google/protobuf/stubs/strutil.h> | |
| 41 #include <google/protobuf/stubs/substitute.h> | |
| 42 | |
| 43 namespace google { | |
| 44 namespace protobuf { | |
| 45 namespace compiler { | |
| 46 namespace java { | |
| 47 | |
| 48 const char kThickSeparator[] = | |
| 49 "// ===================================================================\n"; | |
| 50 const char kThinSeparator[] = | |
| 51 "// -------------------------------------------------------------------\n"; | |
| 52 | |
| 53 namespace { | |
| 54 | |
| 55 const char* kDefaultPackage = ""; | |
| 56 | |
| 57 const string& FieldName(const FieldDescriptor* field) { | |
| 58 // Groups are hacky: The name of the field is just the lower-cased name | |
| 59 // of the group type. In Java, though, we would like to retain the original | |
| 60 // capitalization of the type name. | |
| 61 if (GetType(field) == FieldDescriptor::TYPE_GROUP) { | |
| 62 return field->message_type()->name(); | |
| 63 } else { | |
| 64 return field->name(); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 string UnderscoresToCamelCaseImpl(const string& input, bool cap_next_letter) { | |
| 69 string result; | |
| 70 // Note: I distrust ctype.h due to locales. | |
| 71 for (int i = 0; i < input.size(); i++) { | |
| 72 if ('a' <= input[i] && input[i] <= 'z') { | |
| 73 if (cap_next_letter) { | |
| 74 result += input[i] + ('A' - 'a'); | |
| 75 } else { | |
| 76 result += input[i]; | |
| 77 } | |
| 78 cap_next_letter = false; | |
| 79 } else if ('A' <= input[i] && input[i] <= 'Z') { | |
| 80 if (i == 0 && !cap_next_letter) { | |
| 81 // Force first letter to lower-case unless explicitly told to | |
| 82 // capitalize it. | |
| 83 result += input[i] + ('a' - 'A'); | |
| 84 } else { | |
| 85 // Capital letters after the first are left as-is. | |
| 86 result += input[i]; | |
| 87 } | |
| 88 cap_next_letter = false; | |
| 89 } else if ('0' <= input[i] && input[i] <= '9') { | |
| 90 result += input[i]; | |
| 91 cap_next_letter = true; | |
| 92 } else { | |
| 93 cap_next_letter = true; | |
| 94 } | |
| 95 } | |
| 96 return result; | |
| 97 } | |
| 98 | |
| 99 } // namespace | |
| 100 | |
| 101 string UnderscoresToCamelCase(const FieldDescriptor* field) { | |
| 102 return UnderscoresToCamelCaseImpl(FieldName(field), false); | |
| 103 } | |
| 104 | |
| 105 string UnderscoresToCapitalizedCamelCase(const FieldDescriptor* field) { | |
| 106 return UnderscoresToCamelCaseImpl(FieldName(field), true); | |
| 107 } | |
| 108 | |
| 109 string UnderscoresToCamelCase(const MethodDescriptor* method) { | |
| 110 return UnderscoresToCamelCaseImpl(method->name(), false); | |
| 111 } | |
| 112 | |
| 113 string StripProto(const string& filename) { | |
| 114 if (HasSuffixString(filename, ".protodevel")) { | |
| 115 return StripSuffixString(filename, ".protodevel"); | |
| 116 } else { | |
| 117 return StripSuffixString(filename, ".proto"); | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 string FileClassName(const FileDescriptor* file) { | |
| 122 if (file->options().has_java_outer_classname()) { | |
| 123 return file->options().java_outer_classname(); | |
| 124 } else { | |
| 125 string basename; | |
| 126 string::size_type last_slash = file->name().find_last_of('/'); | |
| 127 if (last_slash == string::npos) { | |
| 128 basename = file->name(); | |
| 129 } else { | |
| 130 basename = file->name().substr(last_slash + 1); | |
| 131 } | |
| 132 return UnderscoresToCamelCaseImpl(StripProto(basename), true); | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 string FileJavaPackage(const FileDescriptor* file) { | |
| 137 string result; | |
| 138 | |
| 139 if (file->options().has_java_package()) { | |
| 140 result = file->options().java_package(); | |
| 141 } else { | |
| 142 result = kDefaultPackage; | |
| 143 if (!file->package().empty()) { | |
| 144 if (!result.empty()) result += '.'; | |
| 145 result += file->package(); | |
| 146 } | |
| 147 } | |
| 148 | |
| 149 | |
| 150 return result; | |
| 151 } | |
| 152 | |
| 153 string JavaPackageToDir(string package_name) { | |
| 154 string package_dir = | |
| 155 StringReplace(package_name, ".", "/", true); | |
| 156 if (!package_dir.empty()) package_dir += "/"; | |
| 157 return package_dir; | |
| 158 } | |
| 159 | |
| 160 string ToJavaName(const string& full_name, const FileDescriptor* file) { | |
| 161 string result; | |
| 162 if (file->options().java_multiple_files()) { | |
| 163 result = FileJavaPackage(file); | |
| 164 } else { | |
| 165 result = ClassName(file); | |
| 166 } | |
| 167 if (!result.empty()) { | |
| 168 result += '.'; | |
| 169 } | |
| 170 if (file->package().empty()) { | |
| 171 result += full_name; | |
| 172 } else { | |
| 173 // Strip the proto package from full_name since we've replaced it with | |
| 174 // the Java package. | |
| 175 result += full_name.substr(file->package().size() + 1); | |
| 176 } | |
| 177 return result; | |
| 178 } | |
| 179 | |
| 180 string ClassName(const Descriptor* descriptor) { | |
| 181 return ToJavaName(descriptor->full_name(), descriptor->file()); | |
| 182 } | |
| 183 | |
| 184 string ClassName(const EnumDescriptor* descriptor) { | |
| 185 return ToJavaName(descriptor->full_name(), descriptor->file()); | |
| 186 } | |
| 187 | |
| 188 string ClassName(const ServiceDescriptor* descriptor) { | |
| 189 return ToJavaName(descriptor->full_name(), descriptor->file()); | |
| 190 } | |
| 191 | |
| 192 string ClassName(const FileDescriptor* descriptor) { | |
| 193 string result = FileJavaPackage(descriptor); | |
| 194 if (!result.empty()) result += '.'; | |
| 195 result += FileClassName(descriptor); | |
| 196 return result; | |
| 197 } | |
| 198 | |
| 199 string FieldConstantName(const FieldDescriptor *field) { | |
| 200 string name = field->name() + "_FIELD_NUMBER"; | |
| 201 UpperString(&name); | |
| 202 return name; | |
| 203 } | |
| 204 | |
| 205 FieldDescriptor::Type GetType(const FieldDescriptor* field) { | |
| 206 return field->type(); | |
| 207 } | |
| 208 | |
| 209 JavaType GetJavaType(const FieldDescriptor* field) { | |
| 210 switch (GetType(field)) { | |
| 211 case FieldDescriptor::TYPE_INT32: | |
| 212 case FieldDescriptor::TYPE_UINT32: | |
| 213 case FieldDescriptor::TYPE_SINT32: | |
| 214 case FieldDescriptor::TYPE_FIXED32: | |
| 215 case FieldDescriptor::TYPE_SFIXED32: | |
| 216 return JAVATYPE_INT; | |
| 217 | |
| 218 case FieldDescriptor::TYPE_INT64: | |
| 219 case FieldDescriptor::TYPE_UINT64: | |
| 220 case FieldDescriptor::TYPE_SINT64: | |
| 221 case FieldDescriptor::TYPE_FIXED64: | |
| 222 case FieldDescriptor::TYPE_SFIXED64: | |
| 223 return JAVATYPE_LONG; | |
| 224 | |
| 225 case FieldDescriptor::TYPE_FLOAT: | |
| 226 return JAVATYPE_FLOAT; | |
| 227 | |
| 228 case FieldDescriptor::TYPE_DOUBLE: | |
| 229 return JAVATYPE_DOUBLE; | |
| 230 | |
| 231 case FieldDescriptor::TYPE_BOOL: | |
| 232 return JAVATYPE_BOOLEAN; | |
| 233 | |
| 234 case FieldDescriptor::TYPE_STRING: | |
| 235 return JAVATYPE_STRING; | |
| 236 | |
| 237 case FieldDescriptor::TYPE_BYTES: | |
| 238 return JAVATYPE_BYTES; | |
| 239 | |
| 240 case FieldDescriptor::TYPE_ENUM: | |
| 241 return JAVATYPE_ENUM; | |
| 242 | |
| 243 case FieldDescriptor::TYPE_GROUP: | |
| 244 case FieldDescriptor::TYPE_MESSAGE: | |
| 245 return JAVATYPE_MESSAGE; | |
| 246 | |
| 247 // No default because we want the compiler to complain if any new | |
| 248 // types are added. | |
| 249 } | |
| 250 | |
| 251 GOOGLE_LOG(FATAL) << "Can't get here."; | |
| 252 return JAVATYPE_INT; | |
| 253 } | |
| 254 | |
| 255 const char* BoxedPrimitiveTypeName(JavaType type) { | |
| 256 switch (type) { | |
| 257 case JAVATYPE_INT : return "java.lang.Integer"; | |
| 258 case JAVATYPE_LONG : return "java.lang.Long"; | |
| 259 case JAVATYPE_FLOAT : return "java.lang.Float"; | |
| 260 case JAVATYPE_DOUBLE : return "java.lang.Double"; | |
| 261 case JAVATYPE_BOOLEAN: return "java.lang.Boolean"; | |
| 262 case JAVATYPE_STRING : return "java.lang.String"; | |
| 263 case JAVATYPE_BYTES : return "com.google.protobuf.ByteString"; | |
| 264 case JAVATYPE_ENUM : return NULL; | |
| 265 case JAVATYPE_MESSAGE: return NULL; | |
| 266 | |
| 267 // No default because we want the compiler to complain if any new | |
| 268 // JavaTypes are added. | |
| 269 } | |
| 270 | |
| 271 GOOGLE_LOG(FATAL) << "Can't get here."; | |
| 272 return NULL; | |
| 273 } | |
| 274 | |
| 275 bool AllAscii(const string& text) { | |
| 276 for (int i = 0; i < text.size(); i++) { | |
| 277 if ((text[i] & 0x80) != 0) { | |
| 278 return false; | |
| 279 } | |
| 280 } | |
| 281 return true; | |
| 282 } | |
| 283 | |
| 284 string DefaultValue(const FieldDescriptor* field) { | |
| 285 // Switch on CppType since we need to know which default_value_* method | |
| 286 // of FieldDescriptor to call. | |
| 287 switch (field->cpp_type()) { | |
| 288 case FieldDescriptor::CPPTYPE_INT32: | |
| 289 return SimpleItoa(field->default_value_int32()); | |
| 290 case FieldDescriptor::CPPTYPE_UINT32: | |
| 291 // Need to print as a signed int since Java has no unsigned. | |
| 292 return SimpleItoa(static_cast<int32>(field->default_value_uint32())); | |
| 293 case FieldDescriptor::CPPTYPE_INT64: | |
| 294 return SimpleItoa(field->default_value_int64()) + "L"; | |
| 295 case FieldDescriptor::CPPTYPE_UINT64: | |
| 296 return SimpleItoa(static_cast<int64>(field->default_value_uint64())) + | |
| 297 "L"; | |
| 298 case FieldDescriptor::CPPTYPE_DOUBLE: { | |
| 299 double value = field->default_value_double(); | |
| 300 if (value == numeric_limits<double>::infinity()) { | |
| 301 return "Double.POSITIVE_INFINITY"; | |
| 302 } else if (value == -numeric_limits<double>::infinity()) { | |
| 303 return "Double.NEGATIVE_INFINITY"; | |
| 304 } else if (value != value) { | |
| 305 return "Double.NaN"; | |
| 306 } else { | |
| 307 return SimpleDtoa(value) + "D"; | |
| 308 } | |
| 309 } | |
| 310 case FieldDescriptor::CPPTYPE_FLOAT: { | |
| 311 float value = field->default_value_float(); | |
| 312 if (value == numeric_limits<float>::infinity()) { | |
| 313 return "Float.POSITIVE_INFINITY"; | |
| 314 } else if (value == -numeric_limits<float>::infinity()) { | |
| 315 return "Float.NEGATIVE_INFINITY"; | |
| 316 } else if (value != value) { | |
| 317 return "Float.NaN"; | |
| 318 } else { | |
| 319 return SimpleFtoa(value) + "F"; | |
| 320 } | |
| 321 } | |
| 322 case FieldDescriptor::CPPTYPE_BOOL: | |
| 323 return field->default_value_bool() ? "true" : "false"; | |
| 324 case FieldDescriptor::CPPTYPE_STRING: | |
| 325 if (GetType(field) == FieldDescriptor::TYPE_BYTES) { | |
| 326 if (field->has_default_value()) { | |
| 327 // See comments in Internal.java for gory details. | |
| 328 return strings::Substitute( | |
| 329 "com.google.protobuf.Internal.bytesDefaultValue(\"$0\")", | |
| 330 CEscape(field->default_value_string())); | |
| 331 } else { | |
| 332 return "com.google.protobuf.ByteString.EMPTY"; | |
| 333 } | |
| 334 } else { | |
| 335 if (AllAscii(field->default_value_string())) { | |
| 336 // All chars are ASCII. In this case CEscape() works fine. | |
| 337 return "\"" + CEscape(field->default_value_string()) + "\""; | |
| 338 } else { | |
| 339 // See comments in Internal.java for gory details. | |
| 340 return strings::Substitute( | |
| 341 "com.google.protobuf.Internal.stringDefaultValue(\"$0\")", | |
| 342 CEscape(field->default_value_string())); | |
| 343 } | |
| 344 } | |
| 345 | |
| 346 case FieldDescriptor::CPPTYPE_ENUM: | |
| 347 return ClassName(field->enum_type()) + "." + | |
| 348 field->default_value_enum()->name(); | |
| 349 | |
| 350 case FieldDescriptor::CPPTYPE_MESSAGE: | |
| 351 return ClassName(field->message_type()) + ".getDefaultInstance()"; | |
| 352 | |
| 353 // No default because we want the compiler to complain if any new | |
| 354 // types are added. | |
| 355 } | |
| 356 | |
| 357 GOOGLE_LOG(FATAL) << "Can't get here."; | |
| 358 return ""; | |
| 359 } | |
| 360 | |
| 361 bool IsDefaultValueJavaDefault(const FieldDescriptor* field) { | |
| 362 // Switch on CppType since we need to know which default_value_* method | |
| 363 // of FieldDescriptor to call. | |
| 364 switch (field->cpp_type()) { | |
| 365 case FieldDescriptor::CPPTYPE_INT32: | |
| 366 return field->default_value_int32() == 0; | |
| 367 case FieldDescriptor::CPPTYPE_UINT32: | |
| 368 return field->default_value_uint32() == 0; | |
| 369 case FieldDescriptor::CPPTYPE_INT64: | |
| 370 return field->default_value_int64() == 0L; | |
| 371 case FieldDescriptor::CPPTYPE_UINT64: | |
| 372 return field->default_value_uint64() == 0L; | |
| 373 case FieldDescriptor::CPPTYPE_DOUBLE: | |
| 374 return field->default_value_double() == 0.0; | |
| 375 case FieldDescriptor::CPPTYPE_FLOAT: | |
| 376 return field->default_value_float() == 0.0; | |
| 377 case FieldDescriptor::CPPTYPE_BOOL: | |
| 378 return field->default_value_bool() == false; | |
| 379 | |
| 380 case FieldDescriptor::CPPTYPE_STRING: | |
| 381 case FieldDescriptor::CPPTYPE_ENUM: | |
| 382 case FieldDescriptor::CPPTYPE_MESSAGE: | |
| 383 return false; | |
| 384 | |
| 385 // No default because we want the compiler to complain if any new | |
| 386 // types are added. | |
| 387 } | |
| 388 | |
| 389 GOOGLE_LOG(FATAL) << "Can't get here."; | |
| 390 return false; | |
| 391 } | |
| 392 | |
| 393 const char* bit_masks[] = { | |
| 394 "0x00000001", | |
| 395 "0x00000002", | |
| 396 "0x00000004", | |
| 397 "0x00000008", | |
| 398 "0x00000010", | |
| 399 "0x00000020", | |
| 400 "0x00000040", | |
| 401 "0x00000080", | |
| 402 | |
| 403 "0x00000100", | |
| 404 "0x00000200", | |
| 405 "0x00000400", | |
| 406 "0x00000800", | |
| 407 "0x00001000", | |
| 408 "0x00002000", | |
| 409 "0x00004000", | |
| 410 "0x00008000", | |
| 411 | |
| 412 "0x00010000", | |
| 413 "0x00020000", | |
| 414 "0x00040000", | |
| 415 "0x00080000", | |
| 416 "0x00100000", | |
| 417 "0x00200000", | |
| 418 "0x00400000", | |
| 419 "0x00800000", | |
| 420 | |
| 421 "0x01000000", | |
| 422 "0x02000000", | |
| 423 "0x04000000", | |
| 424 "0x08000000", | |
| 425 "0x10000000", | |
| 426 "0x20000000", | |
| 427 "0x40000000", | |
| 428 "0x80000000", | |
| 429 }; | |
| 430 | |
| 431 string GetBitFieldName(int index) { | |
| 432 string varName = "bitField"; | |
| 433 varName += SimpleItoa(index); | |
| 434 varName += "_"; | |
| 435 return varName; | |
| 436 } | |
| 437 | |
| 438 string GetBitFieldNameForBit(int bitIndex) { | |
| 439 return GetBitFieldName(bitIndex / 32); | |
| 440 } | |
| 441 | |
| 442 namespace { | |
| 443 | |
| 444 string GenerateGetBitInternal(const string& prefix, int bitIndex) { | |
| 445 string varName = prefix + GetBitFieldNameForBit(bitIndex); | |
| 446 int bitInVarIndex = bitIndex % 32; | |
| 447 | |
| 448 string mask = bit_masks[bitInVarIndex]; | |
| 449 string result = "((" + varName + " & " + mask + ") == " + mask + ")"; | |
| 450 return result; | |
| 451 } | |
| 452 | |
| 453 string GenerateSetBitInternal(const string& prefix, int bitIndex) { | |
| 454 string varName = prefix + GetBitFieldNameForBit(bitIndex); | |
| 455 int bitInVarIndex = bitIndex % 32; | |
| 456 | |
| 457 string mask = bit_masks[bitInVarIndex]; | |
| 458 string result = varName + " |= " + mask; | |
| 459 return result; | |
| 460 } | |
| 461 | |
| 462 } // namespace | |
| 463 | |
| 464 string GenerateGetBit(int bitIndex) { | |
| 465 return GenerateGetBitInternal("", bitIndex); | |
| 466 } | |
| 467 | |
| 468 string GenerateSetBit(int bitIndex) { | |
| 469 return GenerateSetBitInternal("", bitIndex); | |
| 470 } | |
| 471 | |
| 472 string GenerateClearBit(int bitIndex) { | |
| 473 string varName = GetBitFieldNameForBit(bitIndex); | |
| 474 int bitInVarIndex = bitIndex % 32; | |
| 475 | |
| 476 string mask = bit_masks[bitInVarIndex]; | |
| 477 string result = varName + " = (" + varName + " & ~" + mask + ")"; | |
| 478 return result; | |
| 479 } | |
| 480 | |
| 481 string GenerateGetBitFromLocal(int bitIndex) { | |
| 482 return GenerateGetBitInternal("from_", bitIndex); | |
| 483 } | |
| 484 | |
| 485 string GenerateSetBitToLocal(int bitIndex) { | |
| 486 return GenerateSetBitInternal("to_", bitIndex); | |
| 487 } | |
| 488 | |
| 489 string GenerateGetBitMutableLocal(int bitIndex) { | |
| 490 return GenerateGetBitInternal("mutable_", bitIndex); | |
| 491 } | |
| 492 | |
| 493 string GenerateSetBitMutableLocal(int bitIndex) { | |
| 494 return GenerateSetBitInternal("mutable_", bitIndex); | |
| 495 } | |
| 496 | |
| 497 } // namespace java | |
| 498 } // namespace compiler | |
| 499 } // namespace protobuf | |
| 500 } // namespace google | |
| OLD | NEW |
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Chromium Code Reviews
Issue 1842653006:
Update //third_party/protobuf to version 3. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master