diff options
Diffstat (limited to 'src/google/protobuf/compiler/java/java_message.cc')
| -rw-r--r-- | src/google/protobuf/compiler/java/java_message.cc | 175 |
1 files changed, 125 insertions, 50 deletions
diff --git a/src/google/protobuf/compiler/java/java_message.cc b/src/google/protobuf/compiler/java/java_message.cc index 22a70c32..dfd8ad08 100644 --- a/src/google/protobuf/compiler/java/java_message.cc +++ b/src/google/protobuf/compiler/java/java_message.cc @@ -95,13 +95,15 @@ ImmutableMessageGenerator::ImmutableMessageGenerator( : MessageGenerator(descriptor), context_(context), name_resolver_(context->GetNameResolver()), field_generators_(descriptor, context_) { - GOOGLE_CHECK_NE( - FileOptions::LITE_RUNTIME, descriptor->file()->options().optimize_for()); + GOOGLE_CHECK(HasDescriptorMethods(descriptor->file(), context->EnforceLite())) + << "Generator factory error: A non-lite message generator is used to " + "generate lite messages."; } ImmutableMessageGenerator::~ImmutableMessageGenerator() {} -void ImmutableMessageGenerator::GenerateStaticVariables(io::Printer* printer) { +void ImmutableMessageGenerator::GenerateStaticVariables( + io::Printer* printer, int* bytecode_estimate) { // Because descriptor.proto (com.google.protobuf.DescriptorProtos) is // used in the construction of descriptors, we have a tricky bootstrapping // problem. To help control static initialization order, we make sure all @@ -124,23 +126,29 @@ void ImmutableMessageGenerator::GenerateStaticVariables(io::Printer* printer) { } else { vars["private"] = "private "; } + if (*bytecode_estimate <= kMaxStaticSize) { + vars["final"] = "final "; + } else { + vars["final"] = ""; + } // The descriptor for this type. printer->Print(vars, // TODO(teboring): final needs to be added back. The way to fix it is to // generate methods that can construct the types, and then still declare the // types, and then init them in clinit with the new method calls. - "$private$static com.google.protobuf.Descriptors.Descriptor\n" + "$private$static $final$com.google.protobuf.Descriptors.Descriptor\n" " internal_$identifier$_descriptor;\n"); + *bytecode_estimate += 30; // And the FieldAccessorTable. - GenerateFieldAccessorTable(printer); + GenerateFieldAccessorTable(printer, bytecode_estimate); // Generate static members for all nested types. for (int i = 0; i < descriptor_->nested_type_count(); i++) { // TODO(kenton): Reuse MessageGenerator objects? ImmutableMessageGenerator(descriptor_->nested_type(i), context_) - .GenerateStaticVariables(printer); + .GenerateStaticVariables(printer, bytecode_estimate); } } @@ -183,7 +191,7 @@ int ImmutableMessageGenerator::GenerateStaticVariableInitializers( } void ImmutableMessageGenerator:: -GenerateFieldAccessorTable(io::Printer* printer) { +GenerateFieldAccessorTable(io::Printer* printer, int* bytecode_estimate) { map<string, string> vars; vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); if (MultipleJavaFiles(descriptor_->file(), /* immutable = */ true)) { @@ -193,10 +201,19 @@ GenerateFieldAccessorTable(io::Printer* printer) { } else { vars["private"] = "private "; } + if (*bytecode_estimate <= kMaxStaticSize) { + vars["final"] = "final "; + } else { + vars["final"] = ""; + } printer->Print(vars, - "$private$static\n" + "$private$static $final$\n" " com.google.protobuf.GeneratedMessage.FieldAccessorTable\n" " internal_$identifier$_fieldAccessorTable;\n"); + + // 6 bytes per field and oneof + *bytecode_estimate += 10 + 6 * descriptor_->field_count() + + 6 * descriptor_->oneof_decl_count(); } int ImmutableMessageGenerator:: @@ -342,7 +359,7 @@ void ImmutableMessageGenerator::Generate(io::Printer* printer) { printer->Print( "}\n"); - if (HasGeneratedMethods(descriptor_)) { + if (context_->HasGeneratedMethods(descriptor_)) { GenerateParsingConstructor(printer); } @@ -408,12 +425,20 @@ void ImmutableMessageGenerator::Generate(io::Printer* printer) { "cap_oneof_name", ToUpper(vars["oneof_name"])); printer->Print(vars, - "private int value = 0;\n" + "private final int value;\n" "private $oneof_capitalized_name$Case(int value) {\n" " this.value = value;\n" "}\n"); printer->Print(vars, + "/**\n" + " * @deprecated Use {@link #forNumber(int)} instead.\n" + " */\n" + "@java.lang.Deprecated\n" "public static $oneof_capitalized_name$Case valueOf(int value) {\n" + " return forNumber(value);\n" + "}\n" + "\n" + "public static $oneof_capitalized_name$Case forNumber(int value) {\n" " switch (value) {\n"); for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); @@ -426,8 +451,7 @@ void ImmutableMessageGenerator::Generate(io::Printer* printer) { } printer->Print( " case 0: return $cap_oneof_name$_NOT_SET;\n" - " default: throw new java.lang.IllegalArgumentException(\n" - " \"Value is undefined for this oneof enum.\");\n" + " default: return null;\n" " }\n" "}\n" "public int getNumber() {\n" @@ -440,7 +464,7 @@ void ImmutableMessageGenerator::Generate(io::Printer* printer) { printer->Print(vars, "public $oneof_capitalized_name$Case\n" "get$oneof_capitalized_name$Case() {\n" - " return $oneof_capitalized_name$Case.valueOf(\n" + " return $oneof_capitalized_name$Case.forNumber(\n" " $oneof_name$Case_);\n" "}\n" "\n"); @@ -459,7 +483,7 @@ void ImmutableMessageGenerator::Generate(io::Printer* printer) { printer->Print("\n"); } - if (HasGeneratedMethods(descriptor_)) { + if (context_->HasGeneratedMethods(descriptor_)) { GenerateIsInitialized(printer); GenerateMessageSerializationMethods(printer); } @@ -664,34 +688,40 @@ GenerateParseFromMethods(io::Printer* printer) { "}\n" "public static $classname$ parseFrom(java.io.InputStream input)\n" " throws java.io.IOException {\n" - " return com.google.protobuf.GeneratedMessage.parseWithIOException(PARSER, input);" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input);\n" "}\n" "public static $classname$ parseFrom(\n" " java.io.InputStream input,\n" " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" " throws java.io.IOException {\n" - " return com.google.protobuf.GeneratedMessage.parseWithIOException(PARSER, input, extensionRegistry);" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input, extensionRegistry);\n" "}\n" "public static $classname$ parseDelimitedFrom(java.io.InputStream input)\n" " throws java.io.IOException {\n" - " return com.google.protobuf.GeneratedMessage.parseDelimitedWithIOException(PARSER, input);" + " return com.google.protobuf.GeneratedMessage\n" + " .parseDelimitedWithIOException(PARSER, input);\n" "}\n" "public static $classname$ parseDelimitedFrom(\n" " java.io.InputStream input,\n" " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" " throws java.io.IOException {\n" - " return com.google.protobuf.GeneratedMessage.parseDelimitedWithIOException(PARSER, input, extensionRegistry);" + " return com.google.protobuf.GeneratedMessage\n" + " .parseDelimitedWithIOException(PARSER, input, extensionRegistry);\n" "}\n" "public static $classname$ parseFrom(\n" " com.google.protobuf.CodedInputStream input)\n" " throws java.io.IOException {\n" - " return com.google.protobuf.GeneratedMessage.parseWithIOException(PARSER, input);" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input);\n" "}\n" "public static $classname$ parseFrom(\n" " com.google.protobuf.CodedInputStream input,\n" " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" " throws java.io.IOException {\n" - " return com.google.protobuf.GeneratedMessage.parseWithIOException(PARSER, input, extensionRegistry);" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input, extensionRegistry);\n" "}\n" "\n", "classname", name_resolver_->GetImmutableClassName(descriptor_)); @@ -1049,22 +1079,52 @@ GenerateEqualsAndHashCode(io::Printer* printer) { printer->Print("hash = (19 * hash) + getDescriptorForType().hashCode();\n"); + // hashCode non-oneofs. for (int i = 0; i < descriptor_->field_count(); i++) { const FieldDescriptor* field = descriptor_->field(i); - const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); - bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); - if (check_has_bits) { + if (field->containing_oneof() == NULL) { + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); + if (check_has_bits) { + printer->Print( + "if (has$name$()) {\n", + "name", info->capitalized_name); + printer->Indent(); + } + field_generators_.get(field).GenerateHashCode(printer); + if (check_has_bits) { + printer->Outdent(); + printer->Print("}\n"); + } + } + } + + // hashCode oneofs. + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + printer->Print( + "switch ($oneof_name$Case_) {\n", + "oneof_name", + context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->name); + printer->Indent(); + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); printer->Print( - "if (has$name$()) {\n", - "name", info->capitalized_name); + "case $field_number$:\n", + "field_number", + SimpleItoa(field->number())); printer->Indent(); - } - field_generators_.get(field).GenerateHashCode(printer); - if (check_has_bits) { + field_generators_.get(field).GenerateHashCode(printer); + printer->Print("break;\n"); printer->Outdent(); - printer->Print("}\n"); } + printer->Print( + "case 0:\n" + "default:\n"); + printer->Outdent(); + printer->Print("}\n"); } + if (descriptor_->extension_range_count() > 0) { printer->Print( "hash = hashFields(hash, getExtensionFields());\n"); @@ -1105,7 +1165,8 @@ GenerateParsingConstructor(io::Printer* printer) { printer->Print( "private $classname$(\n" " com.google.protobuf.CodedInputStream input,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry) {\n", + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n", "classname", descriptor_->name()); printer->Indent(); @@ -1215,10 +1276,10 @@ GenerateParsingConstructor(io::Printer* printer) { printer->Outdent(); printer->Print( "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" - " throw new RuntimeException(e.setUnfinishedMessage(this));\n" + " throw e.setUnfinishedMessage(this);\n" "} catch (java.io.IOException e) {\n" - " throw new RuntimeException(new com.google.protobuf.InvalidProtocolBufferException(e)\n" - " .setUnfinishedMessage(this));\n" + " throw new com.google.protobuf.InvalidProtocolBufferException(\n" + " e).setUnfinishedMessage(this);\n" "} finally {\n"); printer->Indent(); @@ -1260,20 +1321,9 @@ void ImmutableMessageGenerator::GenerateParser(io::Printer* printer) { " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" " throws com.google.protobuf.InvalidProtocolBufferException {\n", "classname", descriptor_->name()); - if (HasGeneratedMethods(descriptor_)) { - // The parsing constructor throws an InvalidProtocolBufferException via a - // RuntimeException to aid in method pruning. We unwrap it here. + if (context_->HasGeneratedMethods(descriptor_)) { printer->Print( - " try {\n" - " return new $classname$(input, extensionRegistry);\n" - " } catch (RuntimeException e) {\n" - " if (e.getCause() instanceof\n" - " com.google.protobuf.InvalidProtocolBufferException) {\n" - " throw (com.google.protobuf.InvalidProtocolBufferException)\n" - " e.getCause();\n" - " }\n" - " throw e;\n" - " }\n", + " return new $classname$(input, extensionRegistry);\n", "classname", descriptor_->name()); } else { // When parsing constructor isn't generated, use builder to parse @@ -1328,14 +1378,39 @@ void ImmutableMessageGenerator::GenerateInitializers(io::Printer* printer) { void ImmutableMessageGenerator::GenerateAnyMethods(io::Printer* printer) { printer->Print( "private static String getTypeUrl(\n" + " java.lang.String typeUrlPrefix,\n" " com.google.protobuf.Descriptors.Descriptor descriptor) {\n" - " return \"type.googleapis.com/\" + descriptor.getFullName();\n" + " return typeUrlPrefix.endsWith(\"/\")\n" + " ? typeUrlPrefix + descriptor.getFullName()\n" + " : typeUrlPrefix + \"/\" + descriptor.getFullName();\n" + "}\n" + "\n" + "private static String getTypeNameFromTypeUrl(\n" + " java.lang.String typeUrl) {\n" + " int pos = typeUrl.lastIndexOf('/');\n" + " return pos == -1 ? \"\" : typeUrl.substring(pos + 1);\n" "}\n" "\n" "public static <T extends com.google.protobuf.Message> Any pack(\n" " T message) {\n" " return Any.newBuilder()\n" - " .setTypeUrl(getTypeUrl(message.getDescriptorForType()))\n" + " .setTypeUrl(getTypeUrl(\"type.googleapis.com\",\n" + " message.getDescriptorForType()))\n" + " .setValue(message.toByteString())\n" + " .build();\n" + "}\n" + "\n" + "/**\n" + " * Packs a message uisng the given type URL prefix. The type URL will\n" + " * be constructed by concatenating the message type's full name to the\n" + " * prefix with an optional \"/\" separator if the prefix doesn't end\n" + " * with \"/\" already.\n" + " */\n" + "public static <T extends com.google.protobuf.Message> Any pack(\n" + " T message, java.lang.String typeUrlPrefix) {\n" + " return Any.newBuilder()\n" + " .setTypeUrl(getTypeUrl(typeUrlPrefix,\n" + " message.getDescriptorForType()))\n" " .setValue(message.toByteString())\n" " .build();\n" "}\n" @@ -1344,8 +1419,8 @@ void ImmutableMessageGenerator::GenerateAnyMethods(io::Printer* printer) { " java.lang.Class<T> clazz) {\n" " T defaultInstance =\n" " com.google.protobuf.Internal.getDefaultInstance(clazz);\n" - " return getTypeUrl().equals(\n" - " getTypeUrl(defaultInstance.getDescriptorForType()));\n" + " return getTypeNameFromTypeUrl(getTypeUrl()).equals(\n" + " defaultInstance.getDescriptorForType().getFullName());\n" "}\n" "\n" "private volatile com.google.protobuf.Message cachedUnpackValue;\n" |