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Unified Diff: third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc

Issue 1322483002: Revert https://codereview.chromium.org/1291903002 (protobuf roll). (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 4 months ago
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Index: third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc b/third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc
deleted file mode 100644
index 3accee92c7395436a25f605de0400be01d9e667b..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc
+++ /dev/null
@@ -1,1174 +0,0 @@
-// 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.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/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_EQ(
- FileOptions::LITE_RUNTIME, descriptor->file()->options().optimize_for());
-}
-
-ImmutableMessageLiteGenerator::~ImmutableMessageLiteGenerator() {}
-
-void ImmutableMessageLiteGenerator::GenerateStaticVariables(
- io::Printer* printer) {
- // 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);
- }
-}
-
-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);
- }
- 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();
-
- GenerateParsingConstructor(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;
- 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 int value = 0;\n"
- "private $oneof_capitalized_name$Case(int value) {\n"
- " this.value = value;\n"
- "}\n");
- printer->Print(vars,
- "public static $oneof_capitalized_name$Case valueOf(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: throw new java.lang.IllegalArgumentException(\n"
- " \"Value is undefined for this oneof enum.\");\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.valueOf(\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);
-
- if (HasEqualsAndHashCode(descriptor_)) {
- GenerateEqualsAndHashCode(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... args) {\n"
- " switch (method) {\n"
- " case PARSE_PARTIAL_FROM: {\n"
- " return new $classname$("
- " (com.google.protobuf.CodedInputStream) args[0],\n"
- " (com.google.protobuf.ExtensionRegistryLite) args[1]);\n"
- " }\n"
- " case NEW_INSTANCE: {\n"
- " return new $classname$(\n"
- " com.google.protobuf.Internal.EMPTY_CODED_INPUT_STREAM,\n"
- " com.google.protobuf.ExtensionRegistryLite\n"
- " .getEmptyRegistry());\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 MERGE_FROM: {\n");
-
- printer->Indent();
- GenerateDynamicMethodMergeFrom(printer);
- printer->Outdent();
-
- printer->Print(
- "}\n");
-
- 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"
- " com.google.protobuf.Internal\n"
- " .EMPTY_CODED_INPUT_STREAM,\n"
- " com.google.protobuf.ExtensionRegistryLite\n"
- " .getEmptyRegistry());\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);
-
- // LITE_RUNTIME uses this to implement the *ForType methods at the
- // GeneratedMessageLite level.
- printer->Print(
- "static {\n"
- " com.google.protobuf.GeneratedMessageLite.onLoad(\n"
- " $classname$.class, new com.google.protobuf.GeneratedMessageLite\n"
- " .PrototypeHolder<$classname$, Builder>(\n"
- " DEFAULT_INSTANCE, PARSER));"
- "}\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 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");
-
- printer->Print(
- "private static final long serialVersionUID = 0L;\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 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 PARSER.parseFrom(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 PARSER.parseFrom(input, extensionRegistry);\n"
- "}\n"
- "public static $classname$ parseDelimitedFrom(java.io.InputStream input)\n"
- " throws java.io.IOException {\n"
- " return PARSER.parseDelimitedFrom(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 PARSER.parseDelimitedFrom(input, extensionRegistry);\n"
- "}\n"
- "public static $classname$ parseFrom(\n"
- " com.google.protobuf.CodedInputStream input)\n"
- " throws java.io.IOException {\n"
- " return PARSER.parseFrom(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 PARSER.parseFrom(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) args[0]).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;");
-}
-
-// ===================================================================
-
-void ImmutableMessageLiteGenerator::GenerateDynamicMethodNewBuilder(
- io::Printer* printer) {
- printer->Print(
- "return new Builder();");
-}
-
-// ===================================================================
-
-void ImmutableMessageLiteGenerator::GenerateDynamicMethodMergeFrom(
- io::Printer* printer) {
- printer->Print(
- // Optimization: If other is the default instance, we know none of its
- // fields are set so we can skip the merge.
- "Object arg = args[0];\n"
- "if (arg == $classname$.getDefaultInstance()) return this;\n"
- "$classname$ other = ($classname$) arg;\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)).GenerateMergingCode(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).GenerateMergingCode(printer);
- printer->Print(
- "break;\n");
- printer->Outdent();
- printer->Print(
- "}\n");
- }
- printer->Print(
- "case $cap_oneof_name$_NOT_SET: {\n"
- " break;\n"
- "}\n",
- "cap_oneof_name",
- ToUpper(context_->GetOneofGeneratorInfo(
- descriptor_->oneof_decl(i))->name));
- printer->Outdent();
- printer->Print(
- "}\n");
- }
-
- // if message type has extensions
- if (descriptor_->extension_range_count() > 0) {
- printer->Print(
- "this.mergeExtensionFields(other);\n");
- }
-
- if (PreserveUnknownFields(descriptor_)) {
- printer->Print(
- "this.mergeUnknownFields(other.unknownFields);\n");
- }
-
- printer->Print(
- "return this;\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 ImmutableMessageLiteGenerator::
-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);
- 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");
- }
- }
- if (PreserveUnknownFields(descriptor_)) {
- // 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");
- }
- 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");
-
- // Include the hash of the class so that two objects with different types
- // but the same field values will probably have different hashes.
- printer->Print("hash = (19 * hash) + $classname$.class.hashCode();\n",
- "classname", name_resolver_->GetImmutableClassName(descriptor_));
-
- 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) {
- 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");
- }
- }
-
- printer->Print(
- "hash = (29 * hash) + unknownFields.hashCode();\n");
- printer->Print(
- "memoizedHashCode = hash;\n"
- "return hash;\n");
- printer->Outdent();
- printer->Print(
- "}\n"
- "\n");
-}
-
-// ===================================================================
-
-void ImmutableMessageLiteGenerator::
-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++) {
- ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_)
- .GenerateExtensionRegistrationCode(printer);
- }
-}
-
-// ===================================================================
-void ImmutableMessageLiteGenerator::
-GenerateParsingConstructor(io::Printer* printer) {
- google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields(
- SortFieldsByNumber(descriptor_));
-
- printer->Print(
- "private $classname$(\n"
- " com.google.protobuf.CodedInputStream input,\n"
- " com.google.protobuf.ExtensionRegistryLite extensionRegistry) {\n",
- "classname", descriptor_->name());
- printer->Indent();
-
- // Initialize all fields to default.
- GenerateInitializers(printer);
-
- // Use builder bits to track mutable repeated fields.
- int totalBuilderBits = 0;
- for (int i = 0; i < descriptor_->field_count(); i++) {
- const ImmutableFieldLiteGenerator& 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));
- }
-
- if (PreserveUnknownFields(descriptor_)) {
- printer->Print(
- "com.google.protobuf.UnknownFieldSetLite.Builder unknownFields =\n"
- " com.google.protobuf.UnknownFieldSetLite.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");
-
- if (PreserveUnknownFields(descriptor_)) {
- if (descriptor_->extension_range_count() > 0) {
- // Lite runtime directly invokes parseUnknownField to reduce method
- // counts.
- printer->Print(
- "default: {\n"
- " if (!parseUnknownField(extensions, getDefaultInstanceForType(),\n"
- " input, unknownFields,\n"
- " extensionRegistry, tag)) {\n"
- " done = true;\n" // it's an endgroup tag
- " }\n"
- " break;\n"
- "}\n");
- } else {
- printer->Print(
- "default: {\n"
- " if (!parseUnknownField(input, unknownFields,\n"
- " extensionRegistry, tag)) {\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");
- }
-
- 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();
-
- // 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);
- }
-
- if (PreserveUnknownFields(descriptor_)) {
- // Make unknown fields immutable.
- printer->Print("this.unknownFields = unknownFields.build();\n");
- }
-
- if (descriptor_->extension_range_count() > 0) {
- // Make extensions immutable.
- printer->Print(
- "makeExtensionsImmutable(extensions);\n");
- }
-
- printer->Outdent();
- printer->Outdent();
- printer->Print(
- " }\n" // finally
- "}\n");
-}
-
-// ===================================================================
-void ImmutableMessageLiteGenerator::GenerateParser(io::Printer* printer) {
- printer->Print(
- "public static final com.google.protobuf.Parser<$classname$> PARSER =\n"
- " new DefaultInstanceBasedParser(DEFAULT_INSTANCE);\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
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