1172 lines
41 KiB
C++
1172 lines
41 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Author: dweis@google.com (Daniel Weis)
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// Based on original Protocol Buffers design by
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// Sanjay Ghemawat, Jeff Dean, and others.
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#include <google/protobuf/compiler/java/java_message_lite.h>
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#include <algorithm>
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#include <google/protobuf/stubs/hash.h>
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#include <map>
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#include <memory>
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#include <vector>
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#include <google/protobuf/compiler/java/java_context.h>
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#include <google/protobuf/compiler/java/java_doc_comment.h>
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#include <google/protobuf/compiler/java/java_enum_lite.h>
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#include <google/protobuf/compiler/java/java_extension_lite.h>
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#include <google/protobuf/compiler/java/java_generator_factory.h>
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#include <google/protobuf/compiler/java/java_helpers.h>
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#include <google/protobuf/compiler/java/java_message_builder.h>
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#include <google/protobuf/compiler/java/java_message_builder_lite.h>
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#include <google/protobuf/compiler/java/java_name_resolver.h>
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#include <google/protobuf/descriptor.pb.h>
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#include <google/protobuf/io/coded_stream.h>
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#include <google/protobuf/io/printer.h>
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#include <google/protobuf/wire_format.h>
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#include <google/protobuf/stubs/substitute.h>
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#include <google/protobuf/stubs/strutil.h>
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namespace google {
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namespace protobuf {
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namespace compiler {
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namespace java {
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using internal::WireFormat;
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using internal::WireFormatLite;
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namespace {
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bool EnableExperimentalRuntimeForLite() {
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#ifdef PROTOBUF_EXPERIMENT
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return PROTOBUF_EXPERIMENT;
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#else // PROTOBUF_EXPERIMENT
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return false;
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#endif // !PROTOBUF_EXPERIMENT
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}
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bool GenerateHasBits(const Descriptor* descriptor) {
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return SupportFieldPresence(descriptor->file()) ||
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HasRepeatedFields(descriptor);
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}
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string MapValueImmutableClassdName(const Descriptor* descriptor,
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ClassNameResolver* name_resolver) {
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const FieldDescriptor* value_field = descriptor->FindFieldByName("value");
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GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type());
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return name_resolver->GetImmutableClassName(value_field->message_type());
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}
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} // namespace
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// ===================================================================
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ImmutableMessageLiteGenerator::ImmutableMessageLiteGenerator(
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const Descriptor* descriptor, Context* context)
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: MessageGenerator(descriptor), context_(context),
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name_resolver_(context->GetNameResolver()),
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field_generators_(descriptor, context_) {
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GOOGLE_CHECK(!HasDescriptorMethods(descriptor->file(), context->EnforceLite()))
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<< "Generator factory error: A lite message generator is used to "
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"generate non-lite messages.";
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}
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ImmutableMessageLiteGenerator::~ImmutableMessageLiteGenerator() {}
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void ImmutableMessageLiteGenerator::GenerateStaticVariables(
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io::Printer* printer, int* bytecode_estimate) {
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// Generate static members for all nested types.
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for (int i = 0; i < descriptor_->nested_type_count(); i++) {
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// TODO(kenton): Reuse MessageGenerator objects?
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ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_)
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.GenerateStaticVariables(printer, bytecode_estimate);
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}
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}
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int ImmutableMessageLiteGenerator::GenerateStaticVariableInitializers(
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io::Printer* printer) {
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int bytecode_estimate = 0;
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// Generate static member initializers for all nested types.
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for (int i = 0; i < descriptor_->nested_type_count(); i++) {
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// TODO(kenton): Reuse MessageGenerator objects?
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bytecode_estimate +=
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ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_)
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.GenerateStaticVariableInitializers(printer);
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}
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return bytecode_estimate;
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}
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// ===================================================================
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void ImmutableMessageLiteGenerator::GenerateInterface(io::Printer* printer) {
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MaybePrintGeneratedAnnotation(context_, printer, descriptor_,
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/* immutable = */ true, "OrBuilder");
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if (descriptor_->extension_range_count() > 0) {
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printer->Print(
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"$deprecation$public interface ${$$classname$OrBuilder$}$ extends \n"
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" $extra_interfaces$\n"
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" com.google.protobuf.GeneratedMessageLite.\n"
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" ExtendableMessageOrBuilder<\n"
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" $classname$, $classname$.Builder> {\n",
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"deprecation", descriptor_->options().deprecated() ?
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"@java.lang.Deprecated " : "",
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"extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_),
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"classname", descriptor_->name(),
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"{", "", "}", "");
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} else {
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printer->Print(
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"$deprecation$public interface ${$$classname$OrBuilder$}$ extends\n"
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" $extra_interfaces$\n"
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" com.google.protobuf.MessageLiteOrBuilder {\n",
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"deprecation", descriptor_->options().deprecated() ?
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"@java.lang.Deprecated " : "",
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"extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_),
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"classname", descriptor_->name(),
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"{", "", "}", "");
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}
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printer->Annotate("{", "}", descriptor_);
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printer->Indent();
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for (int i = 0; i < descriptor_->field_count(); i++) {
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printer->Print("\n");
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field_generators_.get(descriptor_->field(i))
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.GenerateInterfaceMembers(printer);
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}
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for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
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printer->Print(
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"\n"
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"public $classname$.$oneof_capitalized_name$Case "
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"get$oneof_capitalized_name$Case();\n",
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"oneof_capitalized_name",
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context_->GetOneofGeneratorInfo(
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descriptor_->oneof_decl(i))->capitalized_name,
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"classname",
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context_->GetNameResolver()->GetImmutableClassName(descriptor_));
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}
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printer->Outdent();
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printer->Print("}\n");
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}
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// ===================================================================
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void ImmutableMessageLiteGenerator::Generate(io::Printer* printer) {
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bool is_own_file = IsOwnFile(descriptor_, /* immutable = */ true);
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std::map<string, string> variables;
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variables["static"] = is_own_file ? " " : " static ";
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variables["classname"] = descriptor_->name();
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variables["extra_interfaces"] = ExtraMessageInterfaces(descriptor_);
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variables["deprecation"] = descriptor_->options().deprecated()
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? "@java.lang.Deprecated " : "";
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WriteMessageDocComment(printer, descriptor_);
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MaybePrintGeneratedAnnotation(context_, printer, descriptor_,
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/* immutable = */ true);
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// The builder_type stores the super type name of the nested Builder class.
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string builder_type;
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if (descriptor_->extension_range_count() > 0) {
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printer->Print(variables,
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"$deprecation$public $static$final class $classname$ extends\n"
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" com.google.protobuf.GeneratedMessageLite.ExtendableMessage<\n"
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" $classname$, $classname$.Builder> implements\n"
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" $extra_interfaces$\n"
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" $classname$OrBuilder {\n");
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builder_type = strings::Substitute(
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"com.google.protobuf.GeneratedMessageLite.ExtendableBuilder<$0, ?>",
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name_resolver_->GetImmutableClassName(descriptor_));
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} else {
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printer->Print(variables,
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"$deprecation$public $static$final class $classname$ extends\n"
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" com.google.protobuf.GeneratedMessageLite<\n"
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" $classname$, $classname$.Builder> implements\n"
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" $extra_interfaces$\n"
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" $classname$OrBuilder {\n");
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builder_type = "com.google.protobuf.GeneratedMessageLite.Builder";
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}
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printer->Indent();
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GenerateConstructor(printer);
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// Nested types
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for (int i = 0; i < descriptor_->enum_type_count(); i++) {
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EnumLiteGenerator(descriptor_->enum_type(i), true, context_)
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.Generate(printer);
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}
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for (int i = 0; i < descriptor_->nested_type_count(); i++) {
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// Don't generate Java classes for map entry messages.
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if (IsMapEntry(descriptor_->nested_type(i))) continue;
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ImmutableMessageLiteGenerator messageGenerator(
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descriptor_->nested_type(i), context_);
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messageGenerator.GenerateInterface(printer);
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messageGenerator.Generate(printer);
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}
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if (GenerateHasBits(descriptor_)) {
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// Integers for bit fields.
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int totalBits = 0;
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for (int i = 0; i < descriptor_->field_count(); i++) {
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totalBits += field_generators_.get(descriptor_->field(i))
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.GetNumBitsForMessage();
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}
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int totalInts = (totalBits + 31) / 32;
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for (int i = 0; i < totalInts; i++) {
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printer->Print("private int $bit_field_name$;\n",
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"bit_field_name", GetBitFieldName(i));
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}
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}
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// oneof
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std::map<string, string> vars;
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for (int i = 0; i < descriptor_->oneof_decl_count(); i++) {
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const OneofDescriptor* oneof = descriptor_->oneof_decl(i);
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vars["oneof_name"] = context_->GetOneofGeneratorInfo(oneof)->name;
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vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo(
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oneof)->capitalized_name;
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vars["oneof_index"] = SimpleItoa(oneof->index());
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// oneofCase_ and oneof_
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printer->Print(vars,
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"private int $oneof_name$Case_ = 0;\n"
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"private java.lang.Object $oneof_name$_;\n");
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// OneofCase enum
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printer->Print(vars,
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"public enum $oneof_capitalized_name$Case\n"
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" implements com.google.protobuf.Internal.EnumLite {\n");
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printer->Indent();
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for (int j = 0; j < oneof->field_count(); j++) {
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const FieldDescriptor* field = oneof->field(j);
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printer->Print(
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"$field_name$($field_number$),\n",
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"field_name",
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ToUpper(field->name()),
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"field_number",
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SimpleItoa(field->number()));
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}
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printer->Print(
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"$cap_oneof_name$_NOT_SET(0);\n",
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"cap_oneof_name",
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ToUpper(vars["oneof_name"]));
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printer->Print(vars,
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"private final int value;\n"
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"private $oneof_capitalized_name$Case(int value) {\n"
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" this.value = value;\n"
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"}\n");
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printer->Print(vars,
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"/**\n"
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" * @deprecated Use {@link #forNumber(int)} instead.\n"
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" */\n"
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"@java.lang.Deprecated\n"
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"public static $oneof_capitalized_name$Case valueOf(int value) {\n"
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" return forNumber(value);\n"
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"}\n"
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"\n"
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"public static $oneof_capitalized_name$Case forNumber(int value) {\n"
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" switch (value) {\n");
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for (int j = 0; j < oneof->field_count(); j++) {
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const FieldDescriptor* field = oneof->field(j);
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printer->Print(
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" case $field_number$: return $field_name$;\n",
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"field_number",
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SimpleItoa(field->number()),
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"field_name",
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ToUpper(field->name()));
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}
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printer->Print(
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" case 0: return $cap_oneof_name$_NOT_SET;\n"
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" default: return null;\n"
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" }\n"
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"}\n"
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"@java.lang.Override\n"
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"public int getNumber() {\n"
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" return this.value;\n"
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"}\n",
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"cap_oneof_name", ToUpper(vars["oneof_name"]));
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printer->Outdent();
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printer->Print("};\n\n");
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// oneofCase()
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printer->Print(vars,
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"@java.lang.Override\n"
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"public $oneof_capitalized_name$Case\n"
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"get$oneof_capitalized_name$Case() {\n"
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" return $oneof_capitalized_name$Case.forNumber(\n"
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" $oneof_name$Case_);\n"
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"}\n"
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"\n"
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"private void clear$oneof_capitalized_name$() {\n"
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" $oneof_name$Case_ = 0;\n"
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" $oneof_name$_ = null;\n"
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"}\n"
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"\n");
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}
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// Fields
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for (int i = 0; i < descriptor_->field_count(); i++) {
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printer->Print("public static final int $constant_name$ = $number$;\n",
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"constant_name", FieldConstantName(descriptor_->field(i)),
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"number", SimpleItoa(descriptor_->field(i)->number()));
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field_generators_.get(descriptor_->field(i)).GenerateMembers(printer);
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printer->Print("\n");
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}
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if (!EnableExperimentalRuntime(context_)) {
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GenerateMessageSerializationMethods(printer);
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}
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GenerateParseFromMethods(printer);
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GenerateBuilder(printer);
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if (HasRequiredFields(descriptor_)) {
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// Memoizes whether the protocol buffer is fully initialized (has all
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// required fields). 0 means false, 1 means true, and all other values
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// mean not yet computed.
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printer->Print(
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"private byte memoizedIsInitialized = 2;\n");
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}
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printer->Print(
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"@java.lang.Override\n"
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"@java.lang.SuppressWarnings({\"unchecked\", \"fallthrough\"})\n"
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"protected final java.lang.Object dynamicMethod(\n"
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" com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,\n"
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" java.lang.Object arg0, java.lang.Object arg1) {\n"
|
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" switch (method) {\n"
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" case NEW_MUTABLE_INSTANCE: {\n"
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" return new $classname$();\n"
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" }\n",
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"classname", name_resolver_->GetImmutableClassName(descriptor_));
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printer->Indent();
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printer->Indent();
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printer->Print(
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"case NEW_BUILDER: {\n");
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printer->Indent();
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GenerateDynamicMethodNewBuilder(printer);
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printer->Outdent();
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if (!EnableExperimentalRuntimeForLite()) {
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printer->Print(
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"}\n"
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"case IS_INITIALIZED: {\n");
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printer->Indent();
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GenerateDynamicMethodIsInitialized(printer);
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printer->Outdent();
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printer->Print("}\n");
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printer->Print(
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"case MAKE_IMMUTABLE: {\n");
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printer->Indent();
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GenerateDynamicMethodMakeImmutable(printer);
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printer->Outdent();
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|
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printer->Print(
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"}\n"
|
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"case VISIT: {\n");
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printer->Indent();
|
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GenerateDynamicMethodVisit(printer);
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printer->Outdent();
|
|
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printer->Print(
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"}\n"
|
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"case MERGE_FROM_STREAM: {\n");
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printer->Indent();
|
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GenerateDynamicMethodMergeFromStream(printer);
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printer->Outdent();
|
|
}
|
|
|
|
|
|
printer->Print(
|
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"}\n"
|
|
"// fall through\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
|
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// it will generate an extra class for every message. Instead, use the
|
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// double-check locking pattern which works just as well.
|
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//
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// The "parser" temporary mirrors the "PARSER" field to eliminate a read
|
|
// at the final return statement.
|
|
" com.google.protobuf.Parser<$classname$> parser = PARSER;\n"
|
|
" if (parser == null) {\n"
|
|
" synchronized ($classname$.class) {\n"
|
|
" parser = PARSER;\n"
|
|
" if (parser == null) {\n"
|
|
" parser = new DefaultInstanceBasedParser(DEFAULT_INSTANCE);\n"
|
|
" PARSER = parser;\n"
|
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" }\n"
|
|
" }\n"
|
|
" }\n"
|
|
" return parser;\n",
|
|
"classname", name_resolver_->GetImmutableClassName(descriptor_));
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|
|
|
printer->Outdent();
|
|
|
|
if (HasRequiredFields(descriptor_)) {
|
|
printer->Print(
|
|
"}\n"
|
|
"case GET_MEMOIZED_IS_INITIALIZED: {\n"
|
|
" return memoizedIsInitialized;\n"
|
|
"}\n"
|
|
"case SET_MEMOIZED_IS_INITIALIZED: {\n"
|
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" memoizedIsInitialized = (byte) (arg0 == null ? 0 : 1);\n"
|
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" return null;\n"
|
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"}\n");
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} else {
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printer->Print(
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"}\n"
|
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"case GET_MEMOIZED_IS_INITIALIZED: {\n"
|
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" return (byte) 1;\n"
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"}\n"
|
|
"case SET_MEMOIZED_IS_INITIALIZED: {\n"
|
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" return null;\n"
|
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"}\n");
|
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}
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|
|
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"
|
|
" // New instances are implicitly immutable so no need to make\n"
|
|
" // immutable.\n"
|
|
" DEFAULT_INSTANCE = new $classname$();\n"
|
|
"}\n"
|
|
"\n",
|
|
"classname", descriptor_->name());
|
|
if (EnableExperimentalRuntimeForLite()) {
|
|
// Register the default instance in a map. This map will be used by
|
|
// experimental runtime to lookup default instance given a class instance
|
|
// without using Java reflection.
|
|
printer->Print(
|
|
"static {\n"
|
|
" com.google.protobuf.GeneratedMessageLite.registerDefaultInstance(\n"
|
|
" $classname$.class, DEFAULT_INSTANCE);\n"
|
|
"}\n",
|
|
"classname", descriptor_->name());
|
|
}
|
|
|
|
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);
|
|
|
|
// 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) {
|
|
if (EnableExperimentalRuntimeForLite()) {
|
|
return;
|
|
}
|
|
|
|
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 (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 (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 = memoizedSerializedSize;\n"
|
|
" if (size != -1) return size;\n"
|
|
"\n");
|
|
printer->Indent();
|
|
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(
|
|
"memoizedSerializedSize = size;\n"
|
|
"return size;\n");
|
|
|
|
printer->Outdent();
|
|
printer->Print(
|
|
"}\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"
|
|
" java.nio.ByteBuffer 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"
|
|
" java.nio.ByteBuffer 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(\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 (Builder) DEFAULT_INSTANCE.createBuilder();\n"
|
|
"}\n"
|
|
"public static Builder newBuilder($classname$ prototype) {\n"
|
|
" return (Builder) DEFAULT_INSTANCE.createBuilder(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;
|
|
}
|
|
|
|
// TODO(xiaofeng): Remove this when b/64445758 is fixed. We don't need to
|
|
// check memoizedIsInitialized here because the caller does that already,
|
|
// but right now proguard proto shrinker asserts on the bytecode layout of
|
|
// this code so it can't be removed until proguard is updated.
|
|
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"
|
|
" 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"
|
|
" 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"
|
|
" 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$name$Map().values()) {\n"
|
|
" if (!item.isInitialized()) {\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"
|
|
" 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"
|
|
" return null;\n"
|
|
"}\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"
|
|
"if (extensionRegistry == null) {\n"
|
|
" throw new java.lang.NullPointerException();\n"
|
|
"}\n");
|
|
printer->Print(
|
|
"try {\n");
|
|
printer->Indent();
|
|
if (EnableExperimentalRuntime(context_)) {
|
|
printer->Print(
|
|
"mergeFromInternal(input, extensionRegistry);\n"
|
|
"return DEFAULT_INSTANCE;\n");
|
|
} else {
|
|
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");
|
|
|
|
std::unique_ptr<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(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");
|
|
}
|
|
}
|
|
|
|
if (descriptor_->extension_range_count() > 0) {
|
|
if (descriptor_->options().message_set_wire_format()) {
|
|
printer->Print(
|
|
"default: {\n"
|
|
" if (!parseUnknownFieldAsMessageSet(\n"
|
|
" getDefaultInstanceForType(), input, extensionRegistry,\n"
|
|
" tag)) {\n"
|
|
" done = true;\n" // it's an endgroup tag
|
|
" }\n"
|
|
" break;\n"
|
|
"}\n");
|
|
} else {
|
|
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");
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
// ===================================================================
|
|
|
|
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
|