| // 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: dweis@google.com (Daniel Weis) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| |
| #include <google/protobuf/compiler/java/java_message_lite.h> |
| |
| #include <algorithm> |
| #include <google/protobuf/stubs/hash.h> |
| #include <map> |
| #include <memory> |
| #ifndef _SHARED_PTR_H |
| #include <google/protobuf/stubs/shared_ptr.h> |
| #endif |
| #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_lite.h> |
| #include <google/protobuf/compiler/java/java_extension_lite.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/io/coded_stream.h> |
| #include <google/protobuf/io/printer.h> |
| #include <google/protobuf/descriptor.pb.h> |
| #include <google/protobuf/wire_format.h> |
| #include <google/protobuf/stubs/strutil.h> |
| #include <google/protobuf/stubs/substitute.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 |
| |
| // =================================================================== |
| ImmutableMessageLiteGenerator::ImmutableMessageLiteGenerator( |
| 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 lite message generator is used to " |
| "generate non-lite messages."; |
| } |
| |
| ImmutableMessageLiteGenerator::~ImmutableMessageLiteGenerator() {} |
| |
| void ImmutableMessageLiteGenerator::GenerateStaticVariables( |
| io::Printer* printer, int* bytecode_estimate) { |
| // Generate static members for all nested types. |
| for (int i = 0; i < descriptor_->nested_type_count(); i++) { |
| // TODO(kenton): Reuse MessageGenerator objects? |
| ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_) |
| .GenerateStaticVariables(printer, bytecode_estimate); |
| } |
| } |
| |
| int ImmutableMessageLiteGenerator::GenerateStaticVariableInitializers( |
| io::Printer* printer) { |
| int bytecode_estimate = 0; |
| // 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 += |
| ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_) |
| .GenerateStaticVariableInitializers(printer); |
| } |
| return bytecode_estimate; |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateInterface(io::Printer* printer) { |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "public interface $classname$OrBuilder extends \n" |
| " $extra_interfaces$\n" |
| " com.google.protobuf.GeneratedMessageLite.\n" |
| " ExtendableMessageOrBuilder<\n" |
| " $classname$, $classname$.Builder> {\n", |
| "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), |
| "classname", descriptor_->name()); |
| } else { |
| printer->Print( |
| "public interface $classname$OrBuilder extends\n" |
| " $extra_interfaces$\n" |
| " com.google.protobuf.MessageLiteOrBuilder {\n", |
| "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), |
| "classname", descriptor_->name()); |
| } |
| |
| 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 ImmutableMessageLiteGenerator::Generate(io::Printer* printer) { |
| bool is_own_file = |
| descriptor_->containing_type() == NULL && |
| MultipleJavaFiles(descriptor_->file(), /* immutable = */ true); |
| |
| map<string, string> variables; |
| variables["static"] = is_own_file ? " " : " static "; |
| variables["classname"] = descriptor_->name(); |
| variables["extra_interfaces"] = ExtraMessageInterfaces(descriptor_); |
| |
| WriteMessageDocComment(printer, descriptor_); |
| |
| // 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, |
| "public $static$final class $classname$ extends\n" |
| " com.google.protobuf.GeneratedMessageLite.ExtendableMessage<\n" |
| " $classname$, $classname$.Builder> implements\n" |
| " $extra_interfaces$\n" |
| " $classname$OrBuilder {\n"); |
| builder_type = strings::Substitute( |
| "com.google.protobuf.GeneratedMessageLite.ExtendableBuilder<$0, ?>", |
| name_resolver_->GetImmutableClassName(descriptor_)); |
| } else { |
| printer->Print(variables, |
| "public $static$final class $classname$ extends\n" |
| " com.google.protobuf.GeneratedMessageLite<\n" |
| " $classname$, $classname$.Builder> implements\n" |
| " $extra_interfaces$\n" |
| " $classname$OrBuilder {\n"); |
| |
| builder_type = "com.google.protobuf.GeneratedMessageLite.Builder"; |
| } |
| printer->Indent(); |
| |
| |
| GenerateConstructor(printer); |
| |
| // Nested types |
| for (int i = 0; i < descriptor_->enum_type_count(); i++) { |
| EnumLiteGenerator(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; |
| ImmutableMessageLiteGenerator 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 |
| 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( |
| "$field_name$($field_number$),\n", |
| "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" |
| "private void clear$oneof_capitalized_name$() {\n" |
| " $oneof_name$Case_ = 0;\n" |
| " $oneof_name$_ = null;\n" |
| "}\n" |
| "\n"); |
| } |
| |
| // 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"); |
| } |
| |
| GenerateMessageSerializationMethods(printer); |
| |
| GenerateParseFromMethods(printer); |
| GenerateBuilder(printer); |
| |
| if (HasRequiredFields(descriptor_)) { |
| // 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( |
| "protected final Object dynamicMethod(\n" |
| " com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,\n" |
| " Object arg0, Object arg1) {\n" |
| " switch (method) {\n" |
| " case NEW_MUTABLE_INSTANCE: {\n" |
| " return new $classname$();\n" |
| " }\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Indent(); |
| printer->Indent(); |
| |
| printer->Print( |
| "case IS_INITIALIZED: {\n"); |
| printer->Indent(); |
| GenerateDynamicMethodIsInitialized(printer); |
| printer->Outdent(); |
| |
| printer->Print( |
| "}\n" |
| "case MAKE_IMMUTABLE: {\n"); |
| |
| printer->Indent(); |
| GenerateDynamicMethodMakeImmutable(printer); |
| printer->Outdent(); |
| |
| printer->Print( |
| "}\n" |
| "case NEW_BUILDER: {\n"); |
| |
| printer->Indent(); |
| GenerateDynamicMethodNewBuilder(printer); |
| printer->Outdent(); |
| |
| printer->Print( |
| "}\n" |
| "case VISIT: {\n"); |
| |
| printer->Indent(); |
| GenerateDynamicMethodVisit(printer); |
| printer->Outdent(); |
| |
| printer->Print( |
| "}\n" |
| "case MERGE_FROM_STREAM: {\n"); |
| |
| printer->Indent(); |
| GenerateDynamicMethodMergeFromStream(printer); |
| printer->Outdent(); |
| |
| printer->Print( |
| "}\n" |
| "case GET_DEFAULT_INSTANCE: {\n" |
| " return DEFAULT_INSTANCE;\n" |
| "}\n" |
| "case GET_PARSER: {\n" |
| // Generally one would use the lazy initialization holder pattern for |
| // manipulating static fields but that has exceptional cost on Android as |
| // it will generate an extra class for every message. Instead, use the |
| // double-check locking pattern which works just as well. |
| " if (PARSER == null) {" |
| " synchronized ($classname$.class) {\n" |
| " if (PARSER == null) {\n" |
| " PARSER = new DefaultInstanceBasedParser(DEFAULT_INSTANCE);\n" |
| " }\n" |
| " }\n" |
| " }\n" |
| " return PARSER;\n" |
| "}\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Outdent(); |
| printer->Outdent(); |
| |
| printer->Print( |
| " }\n" |
| " throw new UnsupportedOperationException();\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| 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" |
| " DEFAULT_INSTANCE.makeImmutable();\n" |
| "}\n" |
| "\n", |
| "classname", descriptor_->name()); |
| printer->Print( |
| "public static $classname$ getDefaultInstance() {\n" |
| " return DEFAULT_INSTANCE;\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| GenerateParser(printer); |
| |
| // 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++) { |
| ImmutableExtensionLiteGenerator(descriptor_->extension(i), context_) |
| .Generate(printer); |
| } |
| |
| printer->Outdent(); |
| printer->Print("}\n\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator:: |
| GenerateMessageSerializationMethods(io::Printer* printer) { |
| google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields( |
| SortFieldsByNumber(descriptor_)); |
| |
| 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( |
| "public void writeTo(com.google.protobuf.CodedOutputStream output)\n" |
| " throws java.io.IOException {\n"); |
| printer->Indent(); |
| 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.GeneratedMessageLite\n" |
| " .ExtendableMessage<$classname$, $classname$.Builder>\n" |
| " .ExtensionWriter extensionWriter =\n" |
| " newMessageSetExtensionWriter();\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| } else { |
| printer->Print( |
| "com.google.protobuf.GeneratedMessageLite\n" |
| " .ExtendableMessage<$classname$, $classname$.Builder>\n" |
| " .ExtensionWriter extensionWriter =\n" |
| " newExtensionWriter();\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| } |
| } |
| |
| // 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 (PreserveUnknownFields(descriptor_)) { |
| printer->Print( |
| "unknownFields.writeTo(output);\n"); |
| } |
| |
| printer->Outdent(); |
| printer->Print( |
| "}\n" |
| "\n" |
| "public int getSerializedSize() {\n" |
| " int size = memoizedSerializedSize;\n" |
| " if (size != -1) return size;\n" |
| "\n" |
| " size = 0;\n"); |
| printer->Indent(); |
| |
| 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 (PreserveUnknownFields(descriptor_)) { |
| printer->Print( |
| "size += unknownFields.getSerializedSize();\n"); |
| } |
| |
| printer->Outdent(); |
| printer->Print( |
| " memoizedSerializedSize = size;\n" |
| " return size;\n" |
| "}\n" |
| "\n"); |
| } |
| |
| void ImmutableMessageLiteGenerator:: |
| 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" |
| " com.google.protobuf.ByteString data)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return com.google.protobuf.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, 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 com.google.protobuf.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, data, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseFrom(byte[] data)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return com.google.protobuf.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, data);\n" |
| "}\n" |
| "public static $classname$ parseFrom(\n" |
| " byte[] data,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws com.google.protobuf.InvalidProtocolBufferException {\n" |
| " return com.google.protobuf.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, data, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseFrom(java.io.InputStream input)\n" |
| " throws java.io.IOException {\n" |
| " return com.google.protobuf.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, 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.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, input, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseDelimitedFrom(java.io.InputStream input)\n" |
| " throws java.io.IOException {\n" |
| " return parseDelimitedFrom(DEFAULT_INSTANCE, 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 parseDelimitedFrom(DEFAULT_INSTANCE, input, extensionRegistry);\n" |
| "}\n" |
| "public static $classname$ parseFrom(\n" |
| " com.google.protobuf.CodedInputStream input)\n" |
| " throws java.io.IOException {\n" |
| " return com.google.protobuf.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, 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.GeneratedMessageLite.parseFrom(\n" |
| " DEFAULT_INSTANCE, input, extensionRegistry);\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| } |
| |
| void ImmutableMessageLiteGenerator::GenerateSerializeOneField( |
| io::Printer* printer, const FieldDescriptor* field) { |
| field_generators_.get(field).GenerateSerializationCode(printer); |
| } |
| |
| void ImmutableMessageLiteGenerator::GenerateSerializeOneExtensionRange( |
| io::Printer* printer, const Descriptor::ExtensionRange* range) { |
| printer->Print( |
| "extensionWriter.writeUntil($end$, output);\n", |
| "end", SimpleItoa(range->end)); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateBuilder(io::Printer* printer) { |
| 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" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| MessageBuilderLiteGenerator builderGenerator(descriptor_, context_); |
| builderGenerator.Generate(printer); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateDynamicMethodIsInitialized( |
| io::Printer* printer) { |
| // Returns null for false, DEFAULT_INSTANCE for true. |
| if (!HasRequiredFields(descriptor_)) { |
| printer->Print("return DEFAULT_INSTANCE;\n"); |
| return; |
| } |
| |
| // Don't directly compare to -1 to avoid an Android x86 JIT bug. |
| printer->Print( |
| "byte isInitialized = memoizedIsInitialized;\n" |
| "if (isInitialized == 1) return DEFAULT_INSTANCE;\n" |
| "if (isInitialized == 0) return null;\n" |
| "\n" |
| "boolean shouldMemoize = ((Boolean) arg0).booleanValue();\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" |
| " if (shouldMemoize) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " }\n" |
| " return null;\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" |
| " if (shouldMemoize) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " }\n" |
| " return null;\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" |
| " if (shouldMemoize) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " }\n" |
| " return null;\n" |
| " }\n" |
| "}\n", |
| "name", info->capitalized_name); |
| break; |
| case FieldDescriptor::LABEL_REPEATED: |
| if (IsMapEntry(field->message_type())) { |
| printer->Print( |
| "for ($type$ item : get$name$().values()) {\n" |
| " if (!item.isInitialized()) {\n" |
| " if (shouldMemoize) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " }\n" |
| " return null;\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" |
| " if (shouldMemoize) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " }\n" |
| " return null;\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" |
| " if (shouldMemoize) {\n" |
| " memoizedIsInitialized = 0;\n" |
| " }\n" |
| " return null;\n" |
| "}\n"); |
| } |
| |
| printer->Print( |
| "if (shouldMemoize) memoizedIsInitialized = 1;\n"); |
| |
| printer->Print( |
| "return DEFAULT_INSTANCE;\n" |
| "\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateDynamicMethodMakeImmutable( |
| io::Printer* printer) { |
| |
| // Output generation code for each field. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| field_generators_.get(descriptor_->field(i)) |
| .GenerateDynamicMethodMakeImmutableCode(printer); |
| } |
| |
| printer->Print( |
| "return null;\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateDynamicMethodNewBuilder( |
| io::Printer* printer) { |
| printer->Print( |
| "return new Builder();\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateDynamicMethodVisit( |
| io::Printer* printer) { |
| printer->Print( |
| "Visitor visitor = (Visitor) arg0;\n" |
| "$classname$ other = ($classname$) arg1;\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| if (!descriptor_->field(i)->containing_oneof()) { |
| field_generators_.get( |
| descriptor_->field(i)).GenerateVisitCode(printer); |
| } |
| } |
| |
| // Merge oneof fields. |
| for (int i = 0; i < descriptor_->oneof_decl_count(); ++i) { |
| printer->Print( |
| "switch (other.get$oneof_capitalized_name$Case()) {\n", |
| "oneof_capitalized_name", |
| context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->capitalized_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 $field_name$: {\n", |
| "field_name", |
| ToUpper(field->name())); |
| printer->Indent(); |
| field_generators_.get(field).GenerateVisitCode(printer); |
| printer->Print( |
| "break;\n"); |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| } |
| printer->Print( |
| "case $cap_oneof_name$_NOT_SET: {\n" |
| " visitor.visitOneofNotSet($oneof_name$Case_ != 0);\n" |
| " break;\n" |
| "}\n", |
| "cap_oneof_name", |
| ToUpper(context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name), |
| "oneof_name", |
| context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name); |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| } |
| |
| printer->Print( |
| "if (visitor == com.google.protobuf.GeneratedMessageLite.MergeFromVisitor\n" |
| " .INSTANCE) {\n"); |
| printer->Indent(); |
| for (int i = 0; i < descriptor_->oneof_decl_count(); ++i) { |
| const OneofDescriptor* field = descriptor_->oneof_decl(i); |
| printer->Print( |
| "if (other.$oneof_name$Case_ != 0) {\n" |
| " $oneof_name$Case_ = other.$oneof_name$Case_;\n" |
| "}\n", |
| "oneof_name", context_->GetOneofGeneratorInfo(field)->name); |
| } |
| |
| 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( |
| "$bit_field_name$ |= other.$bit_field_name$;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| } |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| |
| |
| printer->Print( |
| "return this;\n"); |
| } |
| |
| // =================================================================== |
| |
| void ImmutableMessageLiteGenerator::GenerateDynamicMethodMergeFromStream( |
| io::Printer* printer) { |
| printer->Print( |
| "com.google.protobuf.CodedInputStream input =\n" |
| " (com.google.protobuf.CodedInputStream) arg0;\n" |
| "com.google.protobuf.ExtensionRegistryLite extensionRegistry =\n" |
| " (com.google.protobuf.ExtensionRegistryLite) arg1;\n" |
| "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"); |
| |
| if (PreserveUnknownFields(descriptor_)) { |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "default: {\n" |
| " if (!parseUnknownField(getDefaultInstanceForType(),\n" |
| " input, extensionRegistry, tag)) {\n" |
| " done = true;\n" // it's an endgroup tag |
| " }\n" |
| " break;\n" |
| "}\n"); |
| } else { |
| printer->Print( |
| "default: {\n" |
| " if (!parseUnknownField(tag, input)) {\n" |
| " done = true;\n" // it's an endgroup tag |
| " }\n" |
| " break;\n" |
| "}\n"); |
| } |
| } else { |
| printer->Print( |
| "default: {\n" |
| " if (!input.skipField(tag)) {\n" |
| " done = true;\n" // it's an endgroup tag |
| " }\n" |
| " break;\n" |
| "}\n"); |
| } |
| |
| google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields( |
| SortFieldsByNumber(descriptor_)); |
| 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(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(packed_tag)); |
| printer->Indent(); |
| |
| field_generators_.get(field).GenerateParsingCodeFromPacked(printer); |
| |
| printer->Outdent(); |
| printer->Print( |
| " break;\n" |
| "}\n"); |
| } |
| } |
| |
| printer->Outdent(); |
| printer->Outdent(); |
| printer->Print( |
| " }\n" // switch (tag) |
| "}\n"); // while (!done) |
| |
| printer->Outdent(); |
| printer->Print( |
| "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" |
| " throw new RuntimeException(e.setUnfinishedMessage(this));\n" |
| "} catch (java.io.IOException e) {\n" |
| " throw new RuntimeException(\n" |
| " new com.google.protobuf.InvalidProtocolBufferException(\n" |
| " e.getMessage()).setUnfinishedMessage(this));\n" |
| "} finally {\n"); |
| printer->Indent(); |
| |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); // finally |
| } |
| |
| // =================================================================== |
| |
| 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 ImmutableMessageLiteGenerator:: |
| GenerateExtensionRegistrationCode(io::Printer* printer) { |
| for (int i = 0; i < descriptor_->extension_count(); i++) { |
| ImmutableExtensionLiteGenerator(descriptor_->extension(i), context_) |
| .GenerateRegistrationCode(printer); |
| } |
| |
| for (int i = 0; i < descriptor_->nested_type_count(); i++) { |
| ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_) |
| .GenerateExtensionRegistrationCode(printer); |
| } |
| } |
| |
| // =================================================================== |
| void ImmutableMessageLiteGenerator:: |
| GenerateConstructor(io::Printer* printer) { |
| printer->Print( |
| "private $classname$() {\n", |
| "classname", descriptor_->name()); |
| printer->Indent(); |
| |
| // Initialize all fields to default. |
| GenerateInitializers(printer); |
| |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| } |
| |
| // =================================================================== |
| void ImmutableMessageLiteGenerator::GenerateParser(io::Printer* printer) { |
| printer->Print( |
| "private static volatile com.google.protobuf.Parser<$classname$> PARSER;\n" |
| "\n" |
| "public static com.google.protobuf.Parser<$classname$> parser() {\n" |
| " return DEFAULT_INSTANCE.getParserForType();\n" |
| "}\n", |
| "classname", descriptor_->name()); |
| } |
| |
| // =================================================================== |
| void ImmutableMessageLiteGenerator::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); |
| } |
| } |
| } |
| |
| } // namespace java |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |
