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| 1 // Protocol Buffers - Google's data interchange format | |
| 2 // Copyright 2008 Google Inc. All rights reserved. | |
| 3 // https://developers.google.com/protocol-buffers/ | |
| 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: dweis@google.com (Daniel Weis) | |
| 32 // Based on original Protocol Buffers design by | |
| 33 // Sanjay Ghemawat, Jeff Dean, and others. | |
| 34 | |
| 35 #include <google/protobuf/compiler/java/java_message_builder.h> | |
| 36 | |
| 37 #include <algorithm> | |
| 38 #include <google/protobuf/stubs/hash.h> | |
| 39 #include <map> | |
| 40 #include <memory> | |
| 41 #ifndef _SHARED_PTR_H | |
| 42 #include <google/protobuf/stubs/shared_ptr.h> | |
| 43 #endif | |
| 44 #include <vector> | |
| 45 | |
| 46 #include <google/protobuf/compiler/java/java_context.h> | |
| 47 #include <google/protobuf/compiler/java/java_doc_comment.h> | |
| 48 #include <google/protobuf/compiler/java/java_enum.h> | |
| 49 #include <google/protobuf/compiler/java/java_extension.h> | |
| 50 #include <google/protobuf/compiler/java/java_generator_factory.h> | |
| 51 #include <google/protobuf/compiler/java/java_helpers.h> | |
| 52 #include <google/protobuf/compiler/java/java_name_resolver.h> | |
| 53 #include <google/protobuf/io/coded_stream.h> | |
| 54 #include <google/protobuf/io/printer.h> | |
| 55 #include <google/protobuf/descriptor.pb.h> | |
| 56 #include <google/protobuf/wire_format.h> | |
| 57 #include <google/protobuf/stubs/strutil.h> | |
| 58 #include <google/protobuf/stubs/substitute.h> | |
| 59 | |
| 60 namespace google { | |
| 61 namespace protobuf { | |
| 62 namespace compiler { | |
| 63 namespace java { | |
| 64 | |
| 65 namespace { | |
| 66 bool GenerateHasBits(const Descriptor* descriptor) { | |
| 67 return SupportFieldPresence(descriptor->file()) || | |
| 68 HasRepeatedFields(descriptor); | |
| 69 } | |
| 70 | |
| 71 string MapValueImmutableClassdName(const Descriptor* descriptor, | |
| 72 ClassNameResolver* name_resolver) { | |
| 73 const FieldDescriptor* value_field = descriptor->FindFieldByName("value"); | |
| 74 GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type()); | |
| 75 return name_resolver->GetImmutableClassName(value_field->message_type()); | |
| 76 } | |
| 77 } // namespace | |
| 78 | |
| 79 MessageBuilderGenerator::MessageBuilderGenerator( | |
| 80 const Descriptor* descriptor, Context* context) | |
| 81 : descriptor_(descriptor), context_(context), | |
| 82 name_resolver_(context->GetNameResolver()), | |
| 83 field_generators_(descriptor, context_) { | |
| 84 GOOGLE_CHECK_NE( | |
| 85 FileOptions::LITE_RUNTIME, descriptor->file()->options().optimize_for()); | |
| 86 } | |
| 87 | |
| 88 MessageBuilderGenerator::~MessageBuilderGenerator() {} | |
| 89 | |
| 90 void MessageBuilderGenerator:: | |
| 91 Generate(io::Printer* printer) { | |
| 92 WriteMessageDocComment(printer, descriptor_); | |
| 93 if (descriptor_->extension_range_count() > 0) { | |
| 94 printer->Print( | |
| 95 "public static final class Builder extends\n" | |
| 96 " com.google.protobuf.GeneratedMessage.ExtendableBuilder<\n" | |
| 97 " $classname$, Builder> implements\n" | |
| 98 " $extra_interfaces$\n" | |
| 99 " $classname$OrBuilder {\n", | |
| 100 "classname", name_resolver_->GetImmutableClassName(descriptor_), | |
| 101 "extra_interfaces", ExtraBuilderInterfaces(descriptor_)); | |
| 102 } else { | |
| 103 printer->Print( | |
| 104 "public static final class Builder extends\n" | |
| 105 " com.google.protobuf.GeneratedMessage.Builder<Builder> implements\n" | |
| 106 " $extra_interfaces$\n" | |
| 107 " $classname$OrBuilder {\n", | |
| 108 "classname", name_resolver_->GetImmutableClassName(descriptor_), | |
| 109 "extra_interfaces", ExtraBuilderInterfaces(descriptor_)); | |
| 110 } | |
| 111 printer->Indent(); | |
| 112 | |
| 113 GenerateDescriptorMethods(printer); | |
| 114 GenerateCommonBuilderMethods(printer); | |
| 115 | |
| 116 if (HasGeneratedMethods(descriptor_)) { | |
| 117 GenerateIsInitialized(printer); | |
| 118 GenerateBuilderParsingMethods(printer); | |
| 119 } | |
| 120 | |
| 121 // oneof | |
| 122 map<string, string> vars; | |
| 123 for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { | |
| 124 vars["oneof_name"] = context_->GetOneofGeneratorInfo( | |
| 125 descriptor_->oneof_decl(i))->name; | |
| 126 vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo( | |
| 127 descriptor_->oneof_decl(i))->capitalized_name; | |
| 128 vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index()); | |
| 129 // oneofCase_ and oneof_ | |
| 130 printer->Print(vars, | |
| 131 "private int $oneof_name$Case_ = 0;\n" | |
| 132 "private java.lang.Object $oneof_name$_;\n"); | |
| 133 // oneofCase() and clearOneof() | |
| 134 printer->Print(vars, | |
| 135 "public $oneof_capitalized_name$Case\n" | |
| 136 " get$oneof_capitalized_name$Case() {\n" | |
| 137 " return $oneof_capitalized_name$Case.valueOf(\n" | |
| 138 " $oneof_name$Case_);\n" | |
| 139 "}\n" | |
| 140 "\n" | |
| 141 "public Builder clear$oneof_capitalized_name$() {\n" | |
| 142 " $oneof_name$Case_ = 0;\n" | |
| 143 " $oneof_name$_ = null;\n"); | |
| 144 printer->Print(" onChanged();\n"); | |
| 145 printer->Print( | |
| 146 " return this;\n" | |
| 147 "}\n" | |
| 148 "\n"); | |
| 149 } | |
| 150 | |
| 151 if (GenerateHasBits(descriptor_)) { | |
| 152 // Integers for bit fields. | |
| 153 int totalBits = 0; | |
| 154 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 155 totalBits += field_generators_.get(descriptor_->field(i)) | |
| 156 .GetNumBitsForBuilder(); | |
| 157 } | |
| 158 int totalInts = (totalBits + 31) / 32; | |
| 159 for (int i = 0; i < totalInts; i++) { | |
| 160 printer->Print("private int $bit_field_name$;\n", | |
| 161 "bit_field_name", GetBitFieldName(i)); | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 166 printer->Print("\n"); | |
| 167 field_generators_.get(descriptor_->field(i)) | |
| 168 .GenerateBuilderMembers(printer); | |
| 169 } | |
| 170 | |
| 171 if (!PreserveUnknownFields(descriptor_)) { | |
| 172 printer->Print( | |
| 173 "public final Builder setUnknownFields(\n" | |
| 174 " final com.google.protobuf.UnknownFieldSet unknownFields) {\n" | |
| 175 " return this;\n" | |
| 176 "}\n" | |
| 177 "\n" | |
| 178 "public final Builder mergeUnknownFields(\n" | |
| 179 " final com.google.protobuf.UnknownFieldSet unknownFields) {\n" | |
| 180 " return this;\n" | |
| 181 "}\n" | |
| 182 "\n"); | |
| 183 } | |
| 184 | |
| 185 printer->Print( | |
| 186 "\n" | |
| 187 "// @@protoc_insertion_point(builder_scope:$full_name$)\n", | |
| 188 "full_name", descriptor_->full_name()); | |
| 189 | |
| 190 printer->Outdent(); | |
| 191 printer->Print("}\n"); | |
| 192 } | |
| 193 | |
| 194 // =================================================================== | |
| 195 | |
| 196 void MessageBuilderGenerator:: | |
| 197 GenerateDescriptorMethods(io::Printer* printer) { | |
| 198 if (!descriptor_->options().no_standard_descriptor_accessor()) { | |
| 199 printer->Print( | |
| 200 "public static final com.google.protobuf.Descriptors.Descriptor\n" | |
| 201 " getDescriptor() {\n" | |
| 202 " return $fileclass$.internal_$identifier$_descriptor;\n" | |
| 203 "}\n" | |
| 204 "\n", | |
| 205 "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), | |
| 206 "identifier", UniqueFileScopeIdentifier(descriptor_)); | |
| 207 } | |
| 208 vector<const FieldDescriptor*> map_fields; | |
| 209 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 210 const FieldDescriptor* field = descriptor_->field(i); | |
| 211 if (GetJavaType(field) == JAVATYPE_MESSAGE && | |
| 212 IsMapEntry(field->message_type())) { | |
| 213 map_fields.push_back(field); | |
| 214 } | |
| 215 } | |
| 216 if (!map_fields.empty()) { | |
| 217 printer->Print( | |
| 218 "@SuppressWarnings({\"rawtypes\"})\n" | |
| 219 "protected com.google.protobuf.MapField internalGetMapField(\n" | |
| 220 " int number) {\n" | |
| 221 " switch (number) {\n"); | |
| 222 printer->Indent(); | |
| 223 printer->Indent(); | |
| 224 for (int i = 0; i < map_fields.size(); ++i) { | |
| 225 const FieldDescriptor* field = map_fields[i]; | |
| 226 const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); | |
| 227 printer->Print( | |
| 228 "case $number$:\n" | |
| 229 " return internalGet$capitalized_name$();\n", | |
| 230 "number", SimpleItoa(field->number()), | |
| 231 "capitalized_name", info->capitalized_name); | |
| 232 } | |
| 233 printer->Print( | |
| 234 "default:\n" | |
| 235 " throw new RuntimeException(\n" | |
| 236 " \"Invalid map field number: \" + number);\n"); | |
| 237 printer->Outdent(); | |
| 238 printer->Outdent(); | |
| 239 printer->Print( | |
| 240 " }\n" | |
| 241 "}\n"); | |
| 242 printer->Print( | |
| 243 "@SuppressWarnings({\"rawtypes\"})\n" | |
| 244 "protected com.google.protobuf.MapField internalGetMutableMapField(\n" | |
| 245 " int number) {\n" | |
| 246 " switch (number) {\n"); | |
| 247 printer->Indent(); | |
| 248 printer->Indent(); | |
| 249 for (int i = 0; i < map_fields.size(); ++i) { | |
| 250 const FieldDescriptor* field = map_fields[i]; | |
| 251 const FieldGeneratorInfo* info = | |
| 252 context_->GetFieldGeneratorInfo(field); | |
| 253 printer->Print( | |
| 254 "case $number$:\n" | |
| 255 " return internalGetMutable$capitalized_name$();\n", | |
| 256 "number", SimpleItoa(field->number()), | |
| 257 "capitalized_name", info->capitalized_name); | |
| 258 } | |
| 259 printer->Print( | |
| 260 "default:\n" | |
| 261 " throw new RuntimeException(\n" | |
| 262 " \"Invalid map field number: \" + number);\n"); | |
| 263 printer->Outdent(); | |
| 264 printer->Outdent(); | |
| 265 printer->Print( | |
| 266 " }\n" | |
| 267 "}\n"); | |
| 268 } | |
| 269 printer->Print( | |
| 270 "protected com.google.protobuf.GeneratedMessage.FieldAccessorTable\n" | |
| 271 " internalGetFieldAccessorTable() {\n" | |
| 272 " return $fileclass$.internal_$identifier$_fieldAccessorTable\n" | |
| 273 " .ensureFieldAccessorsInitialized(\n" | |
| 274 " $classname$.class, $classname$.Builder.class);\n" | |
| 275 "}\n" | |
| 276 "\n", | |
| 277 "classname", name_resolver_->GetImmutableClassName(descriptor_), | |
| 278 "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), | |
| 279 "identifier", UniqueFileScopeIdentifier(descriptor_)); | |
| 280 } | |
| 281 | |
| 282 // =================================================================== | |
| 283 | |
| 284 void MessageBuilderGenerator:: | |
| 285 GenerateCommonBuilderMethods(io::Printer* printer) { | |
| 286 printer->Print( | |
| 287 "// Construct using $classname$.newBuilder()\n" | |
| 288 "private Builder() {\n" | |
| 289 " maybeForceBuilderInitialization();\n" | |
| 290 "}\n" | |
| 291 "\n", | |
| 292 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 293 | |
| 294 printer->Print( | |
| 295 "private Builder(\n" | |
| 296 " com.google.protobuf.GeneratedMessage.BuilderParent parent) {\n" | |
| 297 " super(parent);\n" | |
| 298 " maybeForceBuilderInitialization();\n" | |
| 299 "}\n", | |
| 300 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 301 | |
| 302 printer->Print( | |
| 303 "private void maybeForceBuilderInitialization() {\n" | |
| 304 " if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {\n"); | |
| 305 | |
| 306 printer->Indent(); | |
| 307 printer->Indent(); | |
| 308 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 309 if (!descriptor_->field(i)->containing_oneof()) { | |
| 310 field_generators_.get(descriptor_->field(i)) | |
| 311 .GenerateFieldBuilderInitializationCode(printer); | |
| 312 } | |
| 313 } | |
| 314 printer->Outdent(); | |
| 315 printer->Outdent(); | |
| 316 | |
| 317 printer->Print( | |
| 318 " }\n" | |
| 319 "}\n"); | |
| 320 | |
| 321 printer->Print( | |
| 322 "public Builder clear() {\n" | |
| 323 " super.clear();\n"); | |
| 324 | |
| 325 printer->Indent(); | |
| 326 | |
| 327 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 328 if (!descriptor_->field(i)->containing_oneof()) { | |
| 329 field_generators_.get(descriptor_->field(i)) | |
| 330 .GenerateBuilderClearCode(printer); | |
| 331 } | |
| 332 } | |
| 333 | |
| 334 for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { | |
| 335 printer->Print( | |
| 336 "$oneof_name$Case_ = 0;\n" | |
| 337 "$oneof_name$_ = null;\n", | |
| 338 "oneof_name", context_->GetOneofGeneratorInfo( | |
| 339 descriptor_->oneof_decl(i))->name); | |
| 340 } | |
| 341 | |
| 342 printer->Outdent(); | |
| 343 | |
| 344 printer->Print( | |
| 345 " return this;\n" | |
| 346 "}\n" | |
| 347 "\n"); | |
| 348 | |
| 349 printer->Print( | |
| 350 "public com.google.protobuf.Descriptors.Descriptor\n" | |
| 351 " getDescriptorForType() {\n" | |
| 352 " return $fileclass$.internal_$identifier$_descriptor;\n" | |
| 353 "}\n" | |
| 354 "\n", | |
| 355 "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), | |
| 356 "identifier", UniqueFileScopeIdentifier(descriptor_)); | |
| 357 | |
| 358 // LITE runtime implements this in GeneratedMessageLite. | |
| 359 printer->Print( | |
| 360 "public $classname$ getDefaultInstanceForType() {\n" | |
| 361 " return $classname$.getDefaultInstance();\n" | |
| 362 "}\n" | |
| 363 "\n", | |
| 364 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 365 | |
| 366 printer->Print( | |
| 367 "public $classname$ build() {\n" | |
| 368 " $classname$ result = buildPartial();\n" | |
| 369 " if (!result.isInitialized()) {\n" | |
| 370 " throw newUninitializedMessageException(result);\n" | |
| 371 " }\n" | |
| 372 " return result;\n" | |
| 373 "}\n" | |
| 374 "\n", | |
| 375 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 376 | |
| 377 printer->Print( | |
| 378 "public $classname$ buildPartial() {\n" | |
| 379 " $classname$ result = new $classname$(this);\n", | |
| 380 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 381 | |
| 382 printer->Indent(); | |
| 383 | |
| 384 int totalBuilderBits = 0; | |
| 385 int totalMessageBits = 0; | |
| 386 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 387 const ImmutableFieldGenerator& field = | |
| 388 field_generators_.get(descriptor_->field(i)); | |
| 389 totalBuilderBits += field.GetNumBitsForBuilder(); | |
| 390 totalMessageBits += field.GetNumBitsForMessage(); | |
| 391 } | |
| 392 int totalBuilderInts = (totalBuilderBits + 31) / 32; | |
| 393 int totalMessageInts = (totalMessageBits + 31) / 32; | |
| 394 | |
| 395 if (GenerateHasBits(descriptor_)) { | |
| 396 // Local vars for from and to bit fields to avoid accessing the builder and | |
| 397 // message over and over for these fields. Seems to provide a slight | |
| 398 // perforamance improvement in micro benchmark and this is also what proto1 | |
| 399 // code does. | |
| 400 for (int i = 0; i < totalBuilderInts; i++) { | |
| 401 printer->Print("int from_$bit_field_name$ = $bit_field_name$;\n", | |
| 402 "bit_field_name", GetBitFieldName(i)); | |
| 403 } | |
| 404 for (int i = 0; i < totalMessageInts; i++) { | |
| 405 printer->Print("int to_$bit_field_name$ = 0;\n", | |
| 406 "bit_field_name", GetBitFieldName(i)); | |
| 407 } | |
| 408 } | |
| 409 | |
| 410 // Output generation code for each field. | |
| 411 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 412 field_generators_.get(descriptor_->field(i)).GenerateBuildingCode(printer); | |
| 413 } | |
| 414 | |
| 415 if (GenerateHasBits(descriptor_)) { | |
| 416 // Copy the bit field results to the generated message | |
| 417 for (int i = 0; i < totalMessageInts; i++) { | |
| 418 printer->Print("result.$bit_field_name$ = to_$bit_field_name$;\n", | |
| 419 "bit_field_name", GetBitFieldName(i)); | |
| 420 } | |
| 421 } | |
| 422 | |
| 423 for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { | |
| 424 printer->Print("result.$oneof_name$Case_ = $oneof_name$Case_;\n", | |
| 425 "oneof_name", context_->GetOneofGeneratorInfo( | |
| 426 descriptor_->oneof_decl(i))->name); | |
| 427 } | |
| 428 | |
| 429 printer->Outdent(); | |
| 430 | |
| 431 printer->Print( | |
| 432 " onBuilt();\n"); | |
| 433 | |
| 434 printer->Print( | |
| 435 " return result;\n" | |
| 436 "}\n" | |
| 437 "\n", | |
| 438 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 439 | |
| 440 // ----------------------------------------------------------------- | |
| 441 | |
| 442 if (HasGeneratedMethods(descriptor_)) { | |
| 443 printer->Print( | |
| 444 "public Builder mergeFrom(com.google.protobuf.Message other) {\n" | |
| 445 " if (other instanceof $classname$) {\n" | |
| 446 " return mergeFrom(($classname$)other);\n" | |
| 447 " } else {\n" | |
| 448 " super.mergeFrom(other);\n" | |
| 449 " return this;\n" | |
| 450 " }\n" | |
| 451 "}\n" | |
| 452 "\n", | |
| 453 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 454 | |
| 455 printer->Print( | |
| 456 "public Builder mergeFrom($classname$ other) {\n" | |
| 457 // Optimization: If other is the default instance, we know none of its | |
| 458 // fields are set so we can skip the merge. | |
| 459 " if (other == $classname$.getDefaultInstance()) return this;\n", | |
| 460 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 461 printer->Indent(); | |
| 462 | |
| 463 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 464 if (!descriptor_->field(i)->containing_oneof()) { | |
| 465 field_generators_.get( | |
| 466 descriptor_->field(i)).GenerateMergingCode(printer); | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 // Merge oneof fields. | |
| 471 for (int i = 0; i < descriptor_->oneof_decl_count(); ++i) { | |
| 472 printer->Print( | |
| 473 "switch (other.get$oneof_capitalized_name$Case()) {\n", | |
| 474 "oneof_capitalized_name", | |
| 475 context_->GetOneofGeneratorInfo( | |
| 476 descriptor_->oneof_decl(i))->capitalized_name); | |
| 477 printer->Indent(); | |
| 478 for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { | |
| 479 const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); | |
| 480 printer->Print( | |
| 481 "case $field_name$: {\n", | |
| 482 "field_name", | |
| 483 ToUpper(field->name())); | |
| 484 printer->Indent(); | |
| 485 field_generators_.get(field).GenerateMergingCode(printer); | |
| 486 printer->Print( | |
| 487 "break;\n"); | |
| 488 printer->Outdent(); | |
| 489 printer->Print( | |
| 490 "}\n"); | |
| 491 } | |
| 492 printer->Print( | |
| 493 "case $cap_oneof_name$_NOT_SET: {\n" | |
| 494 " break;\n" | |
| 495 "}\n", | |
| 496 "cap_oneof_name", | |
| 497 ToUpper(context_->GetOneofGeneratorInfo( | |
| 498 descriptor_->oneof_decl(i))->name)); | |
| 499 printer->Outdent(); | |
| 500 printer->Print( | |
| 501 "}\n"); | |
| 502 } | |
| 503 | |
| 504 printer->Outdent(); | |
| 505 | |
| 506 // if message type has extensions | |
| 507 if (descriptor_->extension_range_count() > 0) { | |
| 508 printer->Print( | |
| 509 " this.mergeExtensionFields(other);\n"); | |
| 510 } | |
| 511 | |
| 512 if (PreserveUnknownFields(descriptor_)) { | |
| 513 printer->Print( | |
| 514 " this.mergeUnknownFields(other.unknownFields);\n"); | |
| 515 } | |
| 516 | |
| 517 printer->Print( | |
| 518 " onChanged();\n"); | |
| 519 | |
| 520 printer->Print( | |
| 521 " return this;\n" | |
| 522 "}\n" | |
| 523 "\n"); | |
| 524 } | |
| 525 } | |
| 526 | |
| 527 // =================================================================== | |
| 528 | |
| 529 void MessageBuilderGenerator:: | |
| 530 GenerateBuilderParsingMethods(io::Printer* printer) { | |
| 531 printer->Print( | |
| 532 "public Builder mergeFrom(\n" | |
| 533 " com.google.protobuf.CodedInputStream input,\n" | |
| 534 " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" | |
| 535 " throws java.io.IOException {\n" | |
| 536 " $classname$ parsedMessage = null;\n" | |
| 537 " try {\n" | |
| 538 " parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);\n" | |
| 539 " } catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" | |
| 540 " parsedMessage = ($classname$) e.getUnfinishedMessage();\n" | |
| 541 " throw e;\n" | |
| 542 " } finally {\n" | |
| 543 " if (parsedMessage != null) {\n" | |
| 544 " mergeFrom(parsedMessage);\n" | |
| 545 " }\n" | |
| 546 " }\n" | |
| 547 " return this;\n" | |
| 548 "}\n", | |
| 549 "classname", name_resolver_->GetImmutableClassName(descriptor_)); | |
| 550 } | |
| 551 | |
| 552 // =================================================================== | |
| 553 | |
| 554 void MessageBuilderGenerator::GenerateIsInitialized( | |
| 555 io::Printer* printer) { | |
| 556 printer->Print( | |
| 557 "public final boolean isInitialized() {\n"); | |
| 558 printer->Indent(); | |
| 559 | |
| 560 // Check that all required fields in this message are set. | |
| 561 // TODO(kenton): We can optimize this when we switch to putting all the | |
| 562 // "has" fields into a single bitfield. | |
| 563 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 564 const FieldDescriptor* field = descriptor_->field(i); | |
| 565 const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); | |
| 566 | |
| 567 if (field->is_required()) { | |
| 568 printer->Print( | |
| 569 "if (!has$name$()) {\n" | |
| 570 " return false;\n" | |
| 571 "}\n", | |
| 572 "name", info->capitalized_name); | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 // Now check that all embedded messages are initialized. | |
| 577 for (int i = 0; i < descriptor_->field_count(); i++) { | |
| 578 const FieldDescriptor* field = descriptor_->field(i); | |
| 579 const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); | |
| 580 if (GetJavaType(field) == JAVATYPE_MESSAGE && | |
| 581 HasRequiredFields(field->message_type())) { | |
| 582 switch (field->label()) { | |
| 583 case FieldDescriptor::LABEL_REQUIRED: | |
| 584 printer->Print( | |
| 585 "if (!get$name$().isInitialized()) {\n" | |
| 586 " return false;\n" | |
| 587 "}\n", | |
| 588 "type", name_resolver_->GetImmutableClassName( | |
| 589 field->message_type()), | |
| 590 "name", info->capitalized_name); | |
| 591 break; | |
| 592 case FieldDescriptor::LABEL_OPTIONAL: | |
| 593 if (!SupportFieldPresence(descriptor_->file()) && | |
| 594 field->containing_oneof() != NULL) { | |
| 595 const OneofDescriptor* oneof = field->containing_oneof(); | |
| 596 const OneofGeneratorInfo* oneof_info = | |
| 597 context_->GetOneofGeneratorInfo(oneof); | |
| 598 printer->Print( | |
| 599 "if ($oneof_name$Case_ == $field_number$) {\n", | |
| 600 "oneof_name", oneof_info->name, | |
| 601 "field_number", SimpleItoa(field->number())); | |
| 602 } else { | |
| 603 printer->Print( | |
| 604 "if (has$name$()) {\n", | |
| 605 "name", info->capitalized_name); | |
| 606 } | |
| 607 printer->Print( | |
| 608 " if (!get$name$().isInitialized()) {\n" | |
| 609 " return false;\n" | |
| 610 " }\n" | |
| 611 "}\n", | |
| 612 "name", info->capitalized_name); | |
| 613 break; | |
| 614 case FieldDescriptor::LABEL_REPEATED: | |
| 615 if (IsMapEntry(field->message_type())) { | |
| 616 printer->Print( | |
| 617 "for ($type$ item : get$name$().values()) {\n" | |
| 618 " if (!item.isInitialized()) {\n" | |
| 619 " return false;\n" | |
| 620 " }\n" | |
| 621 "}\n", | |
| 622 "type", MapValueImmutableClassdName(field->message_type(), | |
| 623 name_resolver_), | |
| 624 "name", info->capitalized_name); | |
| 625 } else { | |
| 626 printer->Print( | |
| 627 "for (int i = 0; i < get$name$Count(); i++) {\n" | |
| 628 " if (!get$name$(i).isInitialized()) {\n" | |
| 629 " return false;\n" | |
| 630 " }\n" | |
| 631 "}\n", | |
| 632 "type", name_resolver_->GetImmutableClassName( | |
| 633 field->message_type()), | |
| 634 "name", info->capitalized_name); | |
| 635 } | |
| 636 break; | |
| 637 } | |
| 638 } | |
| 639 } | |
| 640 | |
| 641 if (descriptor_->extension_range_count() > 0) { | |
| 642 printer->Print( | |
| 643 "if (!extensionsAreInitialized()) {\n" | |
| 644 " return false;\n" | |
| 645 "}\n"); | |
| 646 } | |
| 647 | |
| 648 printer->Outdent(); | |
| 649 | |
| 650 printer->Print( | |
| 651 " return true;\n" | |
| 652 "}\n" | |
| 653 "\n"); | |
| 654 } | |
| 655 | |
| 656 // =================================================================== | |
| 657 | |
| 658 } // namespace java | |
| 659 } // namespace compiler | |
| 660 } // namespace protobuf | |
| 661 } // namespace google | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1322483002:
Revert https://codereview.chromium.org/1291903002 (protobuf roll). (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master