| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Author: kenton@google.com (Kenton Varda) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| |
| #include <google/protobuf/compiler/java/java_message.h> |
| |
| #include <algorithm> |
| #include <google/protobuf/stubs/hash.h> |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include <google/protobuf/compiler/java/java_context.h> |
| #include <google/protobuf/compiler/java/java_doc_comment.h> |
| #include <google/protobuf/compiler/java/java_enum.h> |
| #include <google/protobuf/compiler/java/java_extension.h> |
| #include <google/protobuf/compiler/java/java_generator_factory.h> |
| #include <google/protobuf/compiler/java/java_helpers.h> |
| #include <google/protobuf/compiler/java/java_message_builder.h> |
| #include <google/protobuf/compiler/java/java_message_builder_lite.h> |
| #include <google/protobuf/compiler/java/java_name_resolver.h> |
| #include <google/protobuf/descriptor.pb.h> |
| #include <google/protobuf/io/coded_stream.h> |
| #include <google/protobuf/io/printer.h> |
| #include <google/protobuf/wire_format.h> |
| #include <google/protobuf/stubs/substitute.h> |
| #include <google/protobuf/stubs/strutil.h> |
| |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace java { |
| |
| using internal::WireFormat; |
| using internal::WireFormatLite; |
| |
| namespace { |
| bool GenerateHasBits(const Descriptor* descriptor) { |
| return SupportFieldPresence(descriptor->file()) || |
| HasRepeatedFields(descriptor); |
| } |
| |
| string MapValueImmutableClassdName(const Descriptor* descriptor, |
| ClassNameResolver* name_resolver) { |
| const FieldDescriptor* value_field = descriptor->FindFieldByName("value"); |
| GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type()); |
| return name_resolver->GetImmutableClassName(value_field->message_type()); |
| } |
| } // namespace |
| |
| // =================================================================== |
| |
| MessageGenerator::MessageGenerator(const Descriptor* descriptor) |
| : descriptor_(descriptor) {} |
| |
| MessageGenerator::~MessageGenerator() {} |
| |
| // =================================================================== |
| ImmutableMessageGenerator::ImmutableMessageGenerator( |
| const Descriptor* descriptor, Context* context) |
| : MessageGenerator(descriptor), context_(context), |
| name_resolver_(context->GetNameResolver()), |
| field_generators_(descriptor, context_) { |
| 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, 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 |
| // descriptors and other static data that depends on them are members of |
| // the outermost class in the file. This way, they will be initialized in |
| // a deterministic order. |
| |
| std::map<string, string> vars; |
| vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); |
| vars["index"] = SimpleItoa(descriptor_->index()); |
| vars["classname"] = name_resolver_->GetImmutableClassName(descriptor_); |
| if (descriptor_->containing_type() != NULL) { |
| vars["parent"] = UniqueFileScopeIdentifier( |
| descriptor_->containing_type()); |
| } |
| if (MultipleJavaFiles(descriptor_->file(), /* immutable = */ true)) { |
| // We can only make these package-private since the classes that use them |
| // are in separate files. |
| vars["private"] = ""; |
| } 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 $final$com.google.protobuf.Descriptors.Descriptor\n" |
| " internal_$identifier$_descriptor;\n"); |
| *bytecode_estimate += 30; |
| |
| // And the FieldAccessorTable. |
| 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, bytecode_estimate); |
| } |
| } |
| |
| int ImmutableMessageGenerator::GenerateStaticVariableInitializers( |
| io::Printer* printer) { |
| int bytecode_estimate = 0; |
| std::map<string, string> vars; |
| vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); |
| vars["index"] = SimpleItoa(descriptor_->index()); |
| vars["classname"] = name_resolver_->GetImmutableClassName(descriptor_); |
| if (descriptor_->containing_type() != NULL) { |
| vars["parent"] = UniqueFileScopeIdentifier( |
| descriptor_->containing_type()); |
| } |
| |
| // The descriptor for this type. |
| if (descriptor_->containing_type() == NULL) { |
| printer->Print(vars, |
| "internal_$identifier$_descriptor =\n" |
| " getDescriptor().getMessageTypes().get($index$);\n"); |
| bytecode_estimate += 30; |
| } else { |
| printer->Print(vars, |
| "internal_$identifier$_descriptor =\n" |
| " internal_$parent$_descriptor.getNestedTypes().get($index$);\n"); |
| bytecode_estimate += 30; |
| } |
| |
| // And the FieldAccessorTable. |
| bytecode_estimate += GenerateFieldAccessorTableInitializer(printer); |
| |
| // Generate static member initializers for all nested types. |
| for (int i = 0; i < descriptor_->nested_type_count(); i++) { |
| // TODO(kenton): Reuse MessageGenerator objects? |
| bytecode_estimate += |
| ImmutableMessageGenerator(descriptor_->nested_type(i), context_) |
| .GenerateStaticVariableInitializers(printer); |
| } |
| return bytecode_estimate; |
| } |
| |
| void ImmutableMessageGenerator:: |
| GenerateFieldAccessorTable(io::Printer* printer, int* bytecode_estimate) { |
| std::map<string, string> vars; |
| vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); |
| if (MultipleJavaFiles(descriptor_->file(), /* immutable = */ true)) { |
| // We can only make these package-private since the classes that use them |
| // are in separate files. |
| vars["private"] = ""; |
| } else { |
| vars["private"] = "private "; |
| } |
| if (*bytecode_estimate <= kMaxStaticSize) { |
| vars["final"] = "final "; |
| } else { |
| vars["final"] = ""; |
| } |
| vars["ver"] = GeneratedCodeVersionSuffix(); |
| printer->Print(vars, |
| "$private$static $final$\n" |
| " com.google.protobuf.GeneratedMessage$ver$.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:: |
| GenerateFieldAccessorTableInitializer(io::Printer* printer) { |
| int bytecode_estimate = 10; |
| printer->Print( |
| "internal_$identifier$_fieldAccessorTable = new\n" |
| " com.google.protobuf.GeneratedMessage$ver$.FieldAccessorTable(\n" |
| " internal_$identifier$_descriptor,\n" |
| " new java.lang.String[] { ", |
| "identifier", UniqueFileScopeIdentifier(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| bytecode_estimate += 6; |
| printer->Print( |
| "\"$field_name$\", ", |
| "field_name", info->capitalized_name); |
| } |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| const OneofDescriptor* oneof = descriptor_->oneof_decl(i); |
| const OneofGeneratorInfo* info = context_->GetOneofGeneratorInfo(oneof); |
| bytecode_estimate += 6; |
| printer->Print( |
| "\"$oneof_name$\", ", |
| "oneof_name", info->capitalized_name); |
| } |
| printer->Print("});\n"); |
| return bytecode_estimate; |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageGenerator::GenerateInterface(io::Printer* printer) { |
| MaybePrintGeneratedAnnotation(context_, printer, descriptor_, |
| /* immutable = */ true, "OrBuilder"); |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "$deprecation$public interface ${$$classname$OrBuilder$}$ extends\n" |
| " $extra_interfaces$\n" |
| " com.google.protobuf.GeneratedMessage$ver$.\n" |
| " ExtendableMessageOrBuilder<$classname$> {\n", |
| "deprecation", descriptor_->options().deprecated() ? |
| "@java.lang.Deprecated " : "", |
| "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), |
| "classname", descriptor_->name(), |
| "{", "", "}", "", "ver", GeneratedCodeVersionSuffix()); |
| } else { |
| printer->Print( |
| "$deprecation$public interface ${$$classname$OrBuilder$}$ extends\n" |
| " $extra_interfaces$\n" |
| " com.google.protobuf.MessageOrBuilder {\n", |
| "deprecation", descriptor_->options().deprecated() ? |
| "@java.lang.Deprecated " : "", |
| "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), |
| "classname", descriptor_->name(), |
| "{", "", "}", ""); |
| } |
| printer->Annotate("{", "}", descriptor_); |
| |
| printer->Indent(); |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| printer->Print("\n"); |
| field_generators_.get(descriptor_->field(i)) |
| .GenerateInterfaceMembers(printer); |
| } |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| printer->Print( |
| "\n" |
| "public $classname$.$oneof_capitalized_name$Case " |
| "get$oneof_capitalized_name$Case();\n", |
| "oneof_capitalized_name", |
| context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->capitalized_name, |
| "classname", |
| context_->GetNameResolver()->GetImmutableClassName( |
| descriptor_)); |
| } |
| printer->Outdent(); |
| |
| printer->Print("}\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageGenerator::Generate(io::Printer* printer) { |
| bool is_own_file = IsOwnFile(descriptor_, /* immutable = */ true); |
| |
| std::map<string, string> variables; |
| variables["static"] = is_own_file ? " " : " static "; |
| variables["classname"] = descriptor_->name(); |
| variables["extra_interfaces"] = ExtraMessageInterfaces(descriptor_); |
| variables["ver"] = GeneratedCodeVersionSuffix(); |
| variables["deprecation"] = descriptor_->options().deprecated() |
| ? "@java.lang.Deprecated " : ""; |
| |
| WriteMessageDocComment(printer, descriptor_); |
| MaybePrintGeneratedAnnotation(context_, printer, descriptor_, |
| /* immutable = */ true); |
| |
| // The builder_type stores the super type name of the nested Builder class. |
| string builder_type; |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| variables, |
| "$deprecation$public $static$final class $classname$ extends\n"); |
| printer->Annotate("classname", descriptor_); |
| printer->Print( |
| variables, |
| " com.google.protobuf.GeneratedMessage$ver$.ExtendableMessage<\n" |
| " $classname$> implements\n" |
| " $extra_interfaces$\n" |
| " $classname$OrBuilder {\n"); |
| builder_type = strings::Substitute( |
| "com.google.protobuf.GeneratedMessage$1.ExtendableBuilder<$0, ?>", |
| name_resolver_->GetImmutableClassName(descriptor_), |
| GeneratedCodeVersionSuffix()); |
| } else { |
| printer->Print( |
| variables, |
| "$deprecation$public $static$final class $classname$ extends\n"); |
| printer->Annotate("classname", descriptor_); |
| printer->Print(variables, |
| " com.google.protobuf.GeneratedMessage$ver$ implements\n" |
| " $extra_interfaces$\n" |
| " $classname$OrBuilder {\n"); |
| builder_type = strings::Substitute( |
| "com.google.protobuf.GeneratedMessage$0.Builder<?>", |
| GeneratedCodeVersionSuffix()); |
| } |
| printer->Print( |
| "private static final long serialVersionUID = 0L;\n"); |
| |
| printer->Indent(); |
| // Using builder_type, instead of Builder, prevents the Builder class from |
| // being loaded into PermGen space when the default instance is created. |
| // This optimizes the PermGen space usage for clients that do not modify |
| // messages. |
| printer->Print( |
| "// Use $classname$.newBuilder() to construct.\n" |
| "private $classname$($buildertype$ builder) {\n" |
| " super(builder);\n" |
| "}\n", |
| "classname", descriptor_->name(), |
| "buildertype", builder_type); |
| printer->Print( |
| "private $classname$() {\n", |
| "classname", descriptor_->name()); |
| printer->Indent(); |
| GenerateInitializers(printer); |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "\n"); |
| |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public final com.google.protobuf.UnknownFieldSet\n" |
| "getUnknownFields() {\n" |
| " return this.unknownFields;\n" |
| "}\n"); |
| |
| if (context_->HasGeneratedMethods(descriptor_)) { |
| if (!EnableExperimentalRuntime(context_) || |
| IsDescriptorProto(descriptor_)) { |
| GenerateParsingConstructor(printer); |
| } |
| } |
| |
| GenerateDescriptorMethods(printer); |
| |
| // Nested types |
| for (int i = 0; i < descriptor_->enum_type_count(); i++) { |
| EnumGenerator(descriptor_->enum_type(i), true, context_) |
| .Generate(printer); |
| } |
| |
| for (int i = 0; i < descriptor_->nested_type_count(); i++) { |
| // Don't generate Java classes for map entry messages. |
| if (IsMapEntry(descriptor_->nested_type(i))) continue; |
| ImmutableMessageGenerator messageGenerator( |
| descriptor_->nested_type(i), context_); |
| messageGenerator.GenerateInterface(printer); |
| messageGenerator.Generate(printer); |
| } |
| |
| if (GenerateHasBits(descriptor_)) { |
| // Integers for bit fields. |
| int totalBits = 0; |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| totalBits += field_generators_.get(descriptor_->field(i)) |
| .GetNumBitsForMessage(); |
| } |
| int totalInts = (totalBits + 31) / 32; |
| for (int i = 0; i < totalInts; i++) { |
| printer->Print("private int $bit_field_name$;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| } |
| |
| // oneof |
| std::map<string, string> vars; |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| vars["oneof_name"] = context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name; |
| vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->capitalized_name; |
| vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index()); |
| // oneofCase_ and oneof_ |
| printer->Print(vars, |
| "private int $oneof_name$Case_ = 0;\n" |
| "private java.lang.Object $oneof_name$_;\n"); |
| // OneofCase enum |
| printer->Print(vars, |
| "public enum $oneof_capitalized_name$Case\n" |
| " implements com.google.protobuf.Internal.EnumLite {\n"); |
| 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( |
| "$deprecation$$field_name$($field_number$),\n", |
| "deprecation", |
| field->options().deprecated() ? "@java.lang.Deprecated " : "", |
| "field_name", ToUpper(field->name()), |
| "field_number", SimpleItoa(field->number())); |
| } |
| printer->Print( |
| "$cap_oneof_name$_NOT_SET(0);\n", |
| "cap_oneof_name", |
| ToUpper(vars["oneof_name"])); |
| printer->Print(vars, |
| "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); |
| printer->Print( |
| " case $field_number$: return $field_name$;\n", |
| "field_number", |
| SimpleItoa(field->number()), |
| "field_name", |
| ToUpper(field->name())); |
| } |
| printer->Print( |
| " case 0: return $cap_oneof_name$_NOT_SET;\n" |
| " default: return null;\n" |
| " }\n" |
| "}\n" |
| "public int getNumber() {\n" |
| " return this.value;\n" |
| "}\n", |
| "cap_oneof_name", ToUpper(vars["oneof_name"])); |
| printer->Outdent(); |
| printer->Print("};\n\n"); |
| // oneofCase() |
| printer->Print(vars, |
| "public $oneof_capitalized_name$Case\n" |
| "get$oneof_capitalized_name$Case() {\n" |
| " return $oneof_capitalized_name$Case.forNumber(\n" |
| " $oneof_name$Case_);\n" |
| "}\n" |
| "\n"); |
| } |
| |
| if (IsAnyMessage(descriptor_)) { |
| GenerateAnyMethods(printer); |
| } |
| |
| // Fields |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| printer->Print("public static final int $constant_name$ = $number$;\n", |
| "constant_name", FieldConstantName(descriptor_->field(i)), |
| "number", SimpleItoa(descriptor_->field(i)->number())); |
| field_generators_.get(descriptor_->field(i)).GenerateMembers(printer); |
| printer->Print("\n"); |
| } |
| |
| if (context_->HasGeneratedMethods(descriptor_)) { |
| GenerateIsInitialized(printer); |
| GenerateMessageSerializationMethods(printer); |
| GenerateEqualsAndHashCode(printer); |
| } |
| |
| |
| GenerateParseFromMethods(printer); |
| GenerateBuilder(printer); |
| |
| printer->Print( |
| "\n" |
| "// @@protoc_insertion_point(class_scope:$full_name$)\n", |
| "full_name", descriptor_->full_name()); |
| |
| |
| // Carefully initialize the default instance in such a way that it doesn't |
| // conflict with other initialization. |
| printer->Print( |
| "private static final $classname$ DEFAULT_INSTANCE;\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| printer->Print( |
| "static {\n" |
| " DEFAULT_INSTANCE = new $classname$();\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print( |
| "public static $classname$ getDefaultInstance() {\n" |
| " return DEFAULT_INSTANCE;\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| // 'of' method for Wrappers |
| if (IsWrappersProtoFile(descriptor_->file())) { |
| printer->Print( |
| "public static $classname$ of($field_type$ value) {\n" |
| " return newBuilder().setValue(value).build();\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "field_type", PrimitiveTypeName(GetJavaType(descriptor_->field(0)))); |
| } |
| |
| GenerateParser(printer); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public $classname$ getDefaultInstanceForType() {\n" |
| " return DEFAULT_INSTANCE;\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| // Extensions must be declared after the DEFAULT_INSTANCE is initialized |
| // because the DEFAULT_INSTANCE is used by the extension to lazily retrieve |
| // the outer class's FileDescriptor. |
| for (int i = 0; i < descriptor_->extension_count(); i++) { |
| ImmutableExtensionGenerator(descriptor_->extension(i), context_) |
| .Generate(printer); |
| } |
| |
| printer->Outdent(); |
| printer->Print("}\n\n"); |
| } |
| |
| |
| // =================================================================== |
| |
| void ImmutableMessageGenerator:: |
| GenerateMessageSerializationMethods(io::Printer* printer) { |
| std::unique_ptr<const FieldDescriptor * []> sorted_fields( |
| SortFieldsByNumber(descriptor_)); |
| |
| std::vector<const Descriptor::ExtensionRange*> sorted_extensions; |
| for (int i = 0; i < descriptor_->extension_range_count(); ++i) { |
| sorted_extensions.push_back(descriptor_->extension_range(i)); |
| } |
| std::sort(sorted_extensions.begin(), sorted_extensions.end(), |
| ExtensionRangeOrdering()); |
| printer->Print( |
| "@java.lang.Override\n" |
| "public void writeTo(com.google.protobuf.CodedOutputStream output)\n" |
| " throws java.io.IOException {\n"); |
| printer->Indent(); |
| |
| if (EnableExperimentalRuntime(context_) && !IsDescriptorProto(descriptor_)) { |
| printer->Print("writeToInternal(output);\n"); |
| } else { |
| if (HasPackedFields(descriptor_)) { |
| // writeTo(CodedOutputStream output) might be invoked without |
| // getSerializedSize() ever being called, but we need the memoized |
| // sizes in case this message has packed fields. Rather than emit checks |
| // for each packed field, just call getSerializedSize() up front. In most |
| // cases, getSerializedSize() will have already been called anyway by one |
| // of the wrapper writeTo() methods, making this call cheap. |
| printer->Print("getSerializedSize();\n"); |
| } |
| |
| if (descriptor_->extension_range_count() > 0) { |
| if (descriptor_->options().message_set_wire_format()) { |
| printer->Print( |
| "com.google.protobuf.GeneratedMessage$ver$\n" |
| " .ExtendableMessage<$classname$>.ExtensionWriter\n" |
| " extensionWriter = newMessageSetExtensionWriter();\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } else { |
| printer->Print( |
| "com.google.protobuf.GeneratedMessage$ver$\n" |
| " .ExtendableMessage<$classname$>.ExtensionWriter\n" |
| " extensionWriter = newExtensionWriter();\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } |
| } |
| |
| // Merge the fields and the extension ranges, both sorted by field number. |
| for (int i = 0, j = 0; |
| i < descriptor_->field_count() || j < sorted_extensions.size();) { |
| if (i == descriptor_->field_count()) { |
| GenerateSerializeOneExtensionRange(printer, sorted_extensions[j++]); |
| } else if (j == sorted_extensions.size()) { |
| GenerateSerializeOneField(printer, sorted_fields[i++]); |
| } else if (sorted_fields[i]->number() < sorted_extensions[j]->start) { |
| GenerateSerializeOneField(printer, sorted_fields[i++]); |
| } else { |
| GenerateSerializeOneExtensionRange(printer, sorted_extensions[j++]); |
| } |
| } |
| |
| if (descriptor_->options().message_set_wire_format()) { |
| printer->Print("unknownFields.writeAsMessageSetTo(output);\n"); |
| } else { |
| printer->Print("unknownFields.writeTo(output);\n"); |
| } |
| } |
| |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "\n" |
| "@java.lang.Override\n" |
| "public int getSerializedSize() {\n" |
| " int size = memoizedSize;\n" |
| " if (size != -1) return size;\n" |
| "\n"); |
| printer->Indent(); |
| if (EnableExperimentalRuntime(context_) && !IsDescriptorProto(descriptor_)) { |
| printer->Print( |
| "memoizedSize = getSerializedSizeInternal();\n" |
| "return memoizedSize;\n"); |
| } else { |
| |
| printer->Print("size = 0;\n"); |
| |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| field_generators_.get(sorted_fields[i]) |
| .GenerateSerializedSizeCode(printer); |
| } |
| |
| if (descriptor_->extension_range_count() > 0) { |
| if (descriptor_->options().message_set_wire_format()) { |
| printer->Print("size += extensionsSerializedSizeAsMessageSet();\n"); |
| } else { |
| printer->Print("size += extensionsSerializedSize();\n"); |
| } |
| } |
| |
| if (descriptor_->options().message_set_wire_format()) { |
| printer->Print( |
| "size += unknownFields.getSerializedSizeAsMessageSet();\n"); |
| } else { |
| printer->Print("size += unknownFields.getSerializedSize();\n"); |
| } |
| |
| printer->Print( |
| "memoizedSize = size;\n" |
| "return size;\n"); |
| } |
| |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "\n"); |
| } |
| |
| void ImmutableMessageGenerator:: |
| GenerateParseFromMethods(io::Printer* printer) { |
| // Note: These are separate from GenerateMessageSerializationMethods() |
| // because they need to be generated even for messages that are optimized |
| // for code size. |
| printer->Print( |
| "public static $classname$ parseFrom(\n" |
| " java.nio.ByteBuffer data)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return PARSER.parseFrom(data);\n" |
| "}\n" |
| "public static $classname$ parseFrom(\n" |
| " java.nio.ByteBuffer data,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return PARSER.parseFrom(data, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseFrom(\n" |
| " com.google.protobuf.ByteString data)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return PARSER.parseFrom(data);\n" |
| "}\n" |
| "public static $classname$ parseFrom(\n" |
| " com.google.protobuf.ByteString data,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return PARSER.parseFrom(data, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseFrom(byte[] data)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return PARSER.parseFrom(data);\n" |
| "}\n" |
| "public static $classname$ parseFrom(\n" |
| " byte[] data,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return PARSER.parseFrom(data, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseFrom(java.io.InputStream input)\n" |
| " throws java.io.IOException {\n" |
| " return com.google.protobuf.GeneratedMessage$ver$\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$ver$\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$ver$\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$ver$\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$ver$\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$ver$\n" |
| " .parseWithIOException(PARSER, input, extensionRegistry);\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } |
| |
| void ImmutableMessageGenerator::GenerateSerializeOneField( |
| io::Printer* printer, const FieldDescriptor* field) { |
| field_generators_.get(field).GenerateSerializationCode(printer); |
| } |
| |
| void ImmutableMessageGenerator::GenerateSerializeOneExtensionRange( |
| io::Printer* printer, const Descriptor::ExtensionRange* range) { |
| printer->Print( |
| "extensionWriter.writeUntil($end$, output);\n", |
| "end", SimpleItoa(range->end)); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageGenerator::GenerateBuilder(io::Printer* printer) { |
| // LITE_RUNTIME implements this at the GeneratedMessageLite level. |
| printer->Print( |
| "@java.lang.Override\n" |
| "public Builder newBuilderForType() { return newBuilder(); }\n"); |
| |
| printer->Print( |
| "public static Builder newBuilder() {\n" |
| " return DEFAULT_INSTANCE.toBuilder();\n" |
| "}\n" |
| "public static Builder newBuilder($classname$ prototype) {\n" |
| " return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public Builder toBuilder() {\n" |
| " return this == DEFAULT_INSTANCE\n" |
| " ? new Builder() : new Builder().mergeFrom(this);\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "protected Builder newBuilderForType(\n" |
| " com.google.protobuf.GeneratedMessage$ver$.BuilderParent parent) {\n" |
| " Builder builder = new Builder(parent);\n" |
| " return builder;\n" |
| "}\n", |
| "ver", GeneratedCodeVersionSuffix()); |
| |
| MessageBuilderGenerator builderGenerator(descriptor_, context_); |
| builderGenerator.Generate(printer); |
| } |
| |
| void ImmutableMessageGenerator:: |
| GenerateDescriptorMethods(io::Printer* printer) { |
| if (!descriptor_->options().no_standard_descriptor_accessor()) { |
| printer->Print( |
| "public static final com.google.protobuf.Descriptors.Descriptor\n" |
| " getDescriptor() {\n" |
| " return $fileclass$.internal_$identifier$_descriptor;\n" |
| "}\n" |
| "\n", |
| "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), |
| "identifier", UniqueFileScopeIdentifier(descriptor_)); |
| } |
| std::vector<const FieldDescriptor*> map_fields; |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| if (GetJavaType(field) == JAVATYPE_MESSAGE && |
| IsMapEntry(field->message_type())) { |
| map_fields.push_back(field); |
| } |
| } |
| if (!map_fields.empty()) { |
| printer->Print( |
| "@SuppressWarnings({\"rawtypes\"})\n" |
| "@java.lang.Override\n" |
| "protected com.google.protobuf.MapField internalGetMapField(\n" |
| " int number) {\n" |
| " switch (number) {\n"); |
| printer->Indent(); |
| printer->Indent(); |
| for (int i = 0; i < map_fields.size(); ++i) { |
| const FieldDescriptor* field = map_fields[i]; |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| printer->Print( |
| "case $number$:\n" |
| " return internalGet$capitalized_name$();\n", |
| "number", SimpleItoa(field->number()), |
| "capitalized_name", info->capitalized_name); |
| } |
| printer->Print( |
| "default:\n" |
| " throw new RuntimeException(\n" |
| " \"Invalid map field number: \" + number);\n"); |
| printer->Outdent(); |
| printer->Outdent(); |
| printer->Print( |
| " }\n" |
| "}\n"); |
| } |
| printer->Print( |
| "@java.lang.Override\n" |
| "protected com.google.protobuf.GeneratedMessage$ver$.FieldAccessorTable\n" |
| " internalGetFieldAccessorTable() {\n" |
| " return $fileclass$.internal_$identifier$_fieldAccessorTable\n" |
| " .ensureFieldAccessorsInitialized(\n" |
| " $classname$.class, $classname$.Builder.class);\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), |
| "identifier", UniqueFileScopeIdentifier(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageGenerator::GenerateIsInitialized( |
| io::Printer* printer) { |
| // Memoizes whether the protocol buffer is fully initialized (has all |
| // required fields). -1 means not yet computed. 0 means false and 1 means |
| // true. |
| printer->Print( |
| "private byte memoizedIsInitialized = -1;\n"); |
| printer->Print( |
| "@java.lang.Override\n" |
| "public final boolean isInitialized() {\n"); |
| printer->Indent(); |
| |
| // Don't directly compare to -1 to avoid an Android x86 JIT bug. |
| printer->Print( |
| "byte isInitialized = memoizedIsInitialized;\n" |
| "if (isInitialized == 1) return true;\n" |
| "if (isInitialized == 0) return false;\n" |
| "\n"); |
| |
| // Check that all required fields in this message are set. |
| // TODO(kenton): We can optimize this when we switch to putting all the |
| // "has" fields into a single bitfield. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| |
| if (field->is_required()) { |
| printer->Print( |
| "if (!has$name$()) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " return false;\n" |
| "}\n", |
| "name", info->capitalized_name); |
| } |
| } |
| |
| // Now check that all embedded messages are initialized. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| if (GetJavaType(field) == JAVATYPE_MESSAGE && |
| HasRequiredFields(field->message_type())) { |
| switch (field->label()) { |
| case FieldDescriptor::LABEL_REQUIRED: |
| printer->Print( |
| "if (!get$name$().isInitialized()) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " return false;\n" |
| "}\n", |
| "type", name_resolver_->GetImmutableClassName( |
| field->message_type()), |
| "name", info->capitalized_name); |
| break; |
| case FieldDescriptor::LABEL_OPTIONAL: |
| if (!SupportFieldPresence(descriptor_->file()) && |
| field->containing_oneof() != NULL) { |
| const OneofDescriptor* oneof = field->containing_oneof(); |
| const OneofGeneratorInfo* oneof_info = |
| context_->GetOneofGeneratorInfo(oneof); |
| printer->Print( |
| "if ($oneof_name$Case_ == $field_number$) {\n", |
| "oneof_name", oneof_info->name, |
| "field_number", SimpleItoa(field->number())); |
| } else { |
| printer->Print( |
| "if (has$name$()) {\n", |
| "name", info->capitalized_name); |
| } |
| printer->Print( |
| " if (!get$name$().isInitialized()) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " return false;\n" |
| " }\n" |
| "}\n", |
| "name", info->capitalized_name); |
| break; |
| case FieldDescriptor::LABEL_REPEATED: |
| if (IsMapEntry(field->message_type())) { |
| printer->Print( |
| "for ($type$ item : get$name$Map().values()) {\n" |
| " if (!item.isInitialized()) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " return false;\n" |
| " }\n" |
| "}\n", |
| "type", MapValueImmutableClassdName(field->message_type(), |
| name_resolver_), |
| "name", info->capitalized_name); |
| } else { |
| printer->Print( |
| "for (int i = 0; i < get$name$Count(); i++) {\n" |
| " if (!get$name$(i).isInitialized()) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " return false;\n" |
| " }\n" |
| "}\n", |
| "type", name_resolver_->GetImmutableClassName( |
| field->message_type()), |
| "name", info->capitalized_name); |
| } |
| break; |
| } |
| } |
| } |
| |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "if (!extensionsAreInitialized()) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " return false;\n" |
| "}\n"); |
| } |
| |
| printer->Outdent(); |
| |
| printer->Print( |
| " memoizedIsInitialized = 1;\n"); |
| |
| printer->Print( |
| " return true;\n" |
| "}\n" |
| "\n"); |
| } |
| |
| // =================================================================== |
| |
| namespace { |
| bool CheckHasBitsForEqualsAndHashCode(const FieldDescriptor* field) { |
| if (field->is_repeated()) { |
| return false; |
| } |
| if (SupportFieldPresence(field->file())) { |
| return true; |
| } |
| return GetJavaType(field) == JAVATYPE_MESSAGE && |
| field->containing_oneof() == NULL; |
| } |
| } // namespace |
| |
| void ImmutableMessageGenerator:: |
| GenerateEqualsAndHashCode(io::Printer* printer) { |
| printer->Print( |
| "@java.lang.Override\n" |
| "public boolean equals(final java.lang.Object obj) {\n"); |
| printer->Indent(); |
| printer->Print( |
| "if (obj == this) {\n" |
| " return true;\n" |
| "}\n" |
| "if (!(obj instanceof $classname$)) {\n" |
| " return super.equals(obj);\n" |
| "}\n" |
| "$classname$ other = ($classname$) obj;\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print("boolean result = true;\n"); |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| if (field->containing_oneof() == NULL) { |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); |
| if (check_has_bits) { |
| printer->Print( |
| "result = result && (has$name$() == other.has$name$());\n" |
| "if (has$name$()) {\n", |
| "name", info->capitalized_name); |
| printer->Indent(); |
| } |
| field_generators_.get(field).GenerateEqualsCode(printer); |
| if (check_has_bits) { |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| } |
| } |
| } |
| |
| // Compare oneofs. |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| printer->Print( |
| "result = result && get$oneof_capitalized_name$Case().equals(\n" |
| " other.get$oneof_capitalized_name$Case());\n", |
| "oneof_capitalized_name", |
| context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->capitalized_name); |
| printer->Print( |
| "if (!result) return false;\n" |
| "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( |
| "case $field_number$:\n", |
| "field_number", |
| SimpleItoa(field->number())); |
| printer->Indent(); |
| field_generators_.get(field).GenerateEqualsCode(printer); |
| printer->Print("break;\n"); |
| printer->Outdent(); |
| } |
| printer->Print( |
| "case 0:\n" |
| "default:\n"); |
| printer->Outdent(); |
| printer->Print("}\n"); |
| } |
| |
| // Always consider unknown fields for equality. This will sometimes return |
| // false for non-canonical ordering when running in LITE_RUNTIME but it's |
| // the best we can do. |
| printer->Print( |
| "result = result && unknownFields.equals(other.unknownFields);\n"); |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "result = result &&\n" |
| " getExtensionFields().equals(other.getExtensionFields());\n"); |
| } |
| printer->Print( |
| "return result;\n"); |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "\n"); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public int hashCode() {\n"); |
| printer->Indent(); |
| printer->Print( |
| "if (memoizedHashCode != 0) {\n"); |
| printer->Indent(); |
| printer->Print( |
| "return memoizedHashCode;\n"); |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "int hash = 41;\n"); |
| |
| // If we output a getDescriptor() method, use that as it is more efficient. |
| if (descriptor_->options().no_standard_descriptor_accessor()) { |
| printer->Print("hash = (19 * hash) + getDescriptorForType().hashCode();\n"); |
| } else { |
| printer->Print("hash = (19 * hash) + getDescriptor().hashCode();\n"); |
| } |
| |
| // hashCode non-oneofs. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| 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( |
| "case $field_number$:\n", |
| "field_number", |
| SimpleItoa(field->number())); |
| printer->Indent(); |
| field_generators_.get(field).GenerateHashCode(printer); |
| printer->Print("break;\n"); |
| printer->Outdent(); |
| } |
| 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"); |
| } |
| |
| printer->Print( |
| "hash = (29 * hash) + unknownFields.hashCode();\n"); |
| printer->Print( |
| "memoizedHashCode = hash;\n" |
| "return hash;\n"); |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageGenerator:: |
| GenerateExtensionRegistrationCode(io::Printer* printer) { |
| for (int i = 0; i < descriptor_->extension_count(); i++) { |
| ImmutableExtensionGenerator(descriptor_->extension(i), context_) |
| .GenerateRegistrationCode(printer); |
| } |
| |
| for (int i = 0; i < descriptor_->nested_type_count(); i++) { |
| ImmutableMessageGenerator(descriptor_->nested_type(i), context_) |
| .GenerateExtensionRegistrationCode(printer); |
| } |
| } |
| |
| // =================================================================== |
| void ImmutableMessageGenerator:: |
| GenerateParsingConstructor(io::Printer* printer) { |
| std::unique_ptr<const FieldDescriptor * []> sorted_fields( |
| SortFieldsByNumber(descriptor_)); |
| |
| printer->Print( |
| "private $classname$(\n" |
| " com.google.protobuf.CodedInputStream input,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n", |
| "classname", descriptor_->name()); |
| printer->Indent(); |
| |
| // Initialize all fields to default. |
| printer->Print( |
| "this();\n" |
| "if (extensionRegistry == null) {\n" |
| " throw new java.lang.NullPointerException();\n" |
| "}\n"); |
| |
| // Use builder bits to track mutable repeated fields. |
| int totalBuilderBits = 0; |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const ImmutableFieldGenerator& field = |
| field_generators_.get(descriptor_->field(i)); |
| totalBuilderBits += field.GetNumBitsForBuilder(); |
| } |
| int totalBuilderInts = (totalBuilderBits + 31) / 32; |
| for (int i = 0; i < totalBuilderInts; i++) { |
| printer->Print("int mutable_$bit_field_name$ = 0;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| |
| printer->Print( |
| "com.google.protobuf.UnknownFieldSet.Builder unknownFields =\n" |
| " com.google.protobuf.UnknownFieldSet.newBuilder();\n"); |
| |
| printer->Print( |
| "try {\n"); |
| printer->Indent(); |
| |
| printer->Print( |
| "boolean done = false;\n" |
| "while (!done) {\n"); |
| printer->Indent(); |
| |
| printer->Print( |
| "int tag = input.readTag();\n" |
| "switch (tag) {\n"); |
| printer->Indent(); |
| |
| printer->Print( |
| "case 0:\n" // zero signals EOF / limit reached |
| " done = true;\n" |
| " break;\n"); |
| |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = sorted_fields[i]; |
| uint32 tag = WireFormatLite::MakeTag(field->number(), |
| WireFormat::WireTypeForFieldType(field->type())); |
| |
| printer->Print( |
| "case $tag$: {\n", |
| "tag", SimpleItoa(static_cast<int32>(tag))); |
| printer->Indent(); |
| |
| field_generators_.get(field).GenerateParsingCode(printer); |
| |
| printer->Outdent(); |
| printer->Print( |
| " break;\n" |
| "}\n"); |
| |
| if (field->is_packable()) { |
| // To make packed = true wire compatible, we generate parsing code from a |
| // packed version of this field regardless of field->options().packed(). |
| uint32 packed_tag = WireFormatLite::MakeTag(field->number(), |
| WireFormatLite::WIRETYPE_LENGTH_DELIMITED); |
| printer->Print( |
| "case $tag$: {\n", |
| "tag", SimpleItoa(static_cast<int32>(packed_tag))); |
| printer->Indent(); |
| |
| field_generators_.get(field).GenerateParsingCodeFromPacked(printer); |
| |
| printer->Outdent(); |
| printer->Print( |
| " break;\n" |
| "}\n"); |
| } |
| } |
| |
| printer->Print( |
| "default: {\n" |
| " if (!parseUnknownField$suffix$(\n" |
| " input, unknownFields, extensionRegistry, tag)) {\n" |
| " done = true;\n" // it's an endgroup tag |
| " }\n" |
| " break;\n" |
| "}\n", |
| "suffix", |
| descriptor_->file()->syntax() == FileDescriptor::SYNTAX_PROTO3 ? "Proto3" |
| : ""); |
| |
| printer->Outdent(); |
| printer->Outdent(); |
| printer->Print( |
| " }\n" // switch (tag) |
| "}\n"); // while (!done) |
| |
| printer->Outdent(); |
| printer->Print( |
| "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" |
| " throw e.setUnfinishedMessage(this);\n" |
| "} catch (java.io.IOException e) {\n" |
| " throw new com.google.protobuf.InvalidProtocolBufferException(\n" |
| " e).setUnfinishedMessage(this);\n" |
| "} finally {\n"); |
| printer->Indent(); |
| |
| // Make repeated field list immutable. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = sorted_fields[i]; |
| field_generators_.get(field).GenerateParsingDoneCode(printer); |
| } |
| |
| // Make unknown fields immutable. |
| printer->Print("this.unknownFields = unknownFields.build();\n"); |
| |
| // Make extensions immutable. |
| printer->Print( |
| "makeExtensionsImmutable();\n"); |
| |
| printer->Outdent(); |
| printer->Outdent(); |
| printer->Print( |
| " }\n" // finally |
| "}\n"); |
| } |
| |
| // =================================================================== |
| void ImmutableMessageGenerator::GenerateParser(io::Printer* printer) { |
| printer->Print( |
| "$visibility$ static final com.google.protobuf.Parser<$classname$>\n" |
| " PARSER = new com.google.protobuf.AbstractParser<$classname$>() {\n", |
| "visibility", |
| ExposePublicParser(descriptor_->file()) ? "@java.lang.Deprecated public" |
| : "private", |
| "classname", descriptor_->name()); |
| printer->Indent(); |
| printer->Print( |
| "@java.lang.Override\n" |
| "public $classname$ parsePartialFrom(\n" |
| " com.google.protobuf.CodedInputStream input,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n", |
| "classname", descriptor_->name()); |
| if (EnableExperimentalRuntime(context_) && !IsDescriptorProto(descriptor_)) { |
| printer->Indent(); |
| printer->Print( |
| "$classname$ msg = new $classname$();\n" |
| "msg.mergeFromInternal(input, extensionRegistry);\n" |
| "msg.makeImmutableInternal();\n" |
| "return msg;\n", |
| "classname", descriptor_->name()); |
| printer->Outdent(); |
| } else if (context_->HasGeneratedMethods(descriptor_)) { |
| printer->Print(" return new $classname$(input, extensionRegistry);\n", |
| "classname", descriptor_->name()); |
| } else { |
| // When parsing constructor isn't generated, use builder to parse |
| // messages. Note, will fallback to use reflection based mergeFieldFrom() |
| // in AbstractMessage.Builder. |
| printer->Indent(); |
| printer->Print( |
| "Builder builder = newBuilder();\n" |
| "try {\n" |
| " builder.mergeFrom(input, extensionRegistry);\n" |
| "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" |
| " throw e.setUnfinishedMessage(builder.buildPartial());\n" |
| "} catch (java.io.IOException e) {\n" |
| " throw new com.google.protobuf.InvalidProtocolBufferException(\n" |
| " e.getMessage()).setUnfinishedMessage(\n" |
| " builder.buildPartial());\n" |
| "}\n" |
| "return builder.buildPartial();\n"); |
| printer->Outdent(); |
| } |
| printer->Print( |
| "}\n"); |
| printer->Outdent(); |
| printer->Print( |
| "};\n" |
| "\n"); |
| |
| printer->Print( |
| "public static com.google.protobuf.Parser<$classname$> parser() {\n" |
| " return PARSER;\n" |
| "}\n" |
| "\n" |
| "@java.lang.Override\n" |
| "public com.google.protobuf.Parser<$classname$> getParserForType() {\n" |
| " return PARSER;\n" |
| "}\n" |
| "\n", |
| "classname", descriptor_->name()); |
| } |
| |
| // =================================================================== |
| void ImmutableMessageGenerator::GenerateInitializers(io::Printer* printer) { |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| if (!descriptor_->field(i)->containing_oneof()) { |
| field_generators_.get(descriptor_->field(i)) |
| .GenerateInitializationCode(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 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(\"type.googleapis.com\",\n" |
| " message.getDescriptorForType()))\n" |
| " .setValue(message.toByteString())\n" |
| " .build();\n" |
| "}\n" |
| "\n" |
| "/**\n" |
| " * Packs a message using 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" |
| "\n" |
| "public <T extends com.google.protobuf.Message> boolean is(\n" |
| " java.lang.Class<T> clazz) {\n" |
| " T defaultInstance =\n" |
| " com.google.protobuf.Internal.getDefaultInstance(clazz);\n" |
| " return getTypeNameFromTypeUrl(getTypeUrl()).equals(\n" |
| " defaultInstance.getDescriptorForType().getFullName());\n" |
| "}\n" |
| "\n" |
| "private volatile com.google.protobuf.Message cachedUnpackValue;\n" |
| "\n" |
| "@java.lang.SuppressWarnings(\"unchecked\")\n" |
| "public <T extends com.google.protobuf.Message> T unpack(\n" |
| " java.lang.Class<T> clazz)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " if (!is(clazz)) {\n" |
| " throw new com.google.protobuf.InvalidProtocolBufferException(\n" |
| " \"Type of the Any message does not match the given class.\");\n" |
| " }\n" |
| " if (cachedUnpackValue != null) {\n" |
| " return (T) cachedUnpackValue;\n" |
| " }\n" |
| " T defaultInstance =\n" |
| " com.google.protobuf.Internal.getDefaultInstance(clazz);\n" |
| " T result = (T) defaultInstance.getParserForType()\n" |
| " .parseFrom(getValue());\n" |
| " cachedUnpackValue = result;\n" |
| " return result;\n" |
| "}\n"); |
| } |
| |
| } // namespace java |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |
