text:
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Author: kenton@google.com (Kenton Varda)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_LITE_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_LITE_H__

#include <string>
#include <vector>
#include <google/protobuf/descriptor.h>

namespace google {
namespace protobuf {
  namespace compiler {
    namespace java {
      class Context;           // context.h
      class ClassNameResolver; // name_resolver.h
    }
  }
  namespace io {
    class Printer;             // printer.h
  }
}

namespace protobuf {
namespace compiler {
namespace java {

class EnumLiteGenerator {
 public:
  EnumLiteGenerator(const EnumDescriptor* descriptor, bool immutable_api,
                    Context* context);
  ~EnumLiteGenerator();

  void Generate(io::Printer* printer);

 private:
  const EnumDescriptor* descriptor_;

  // The proto language allows multiple enum constants to have the same numeric
  // value.  Java, however, does not allow multiple enum constants to be
  // considered equivalent.  We treat the first defined constant for any
  // given numeric value as "canonical" and the rest as aliases of that
  // canonical value.
  std::vector<const EnumValueDescriptor*> canonical_values_;

  struct Alias {
    const EnumValueDescriptor* value;
    const EnumValueDescriptor* canonical_value;
  };
  std::vector<Alias> aliases_;

  bool immutable_api_;

  Context* context_;
  ClassNameResolver* name_resolver_;

  bool CanUseEnumValues();

  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumLiteGenerator);
};

}  // namespace java
}  // namespace compiler
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_LITE_H__


text:
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Author: kenton@google.com (Kenton Varda)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.

#include <map>
#include <string>

#include <google/protobuf/compiler/java/java_context.h>
#include <google/protobuf/compiler/java/java_message_field.h>
#include <google/protobuf/compiler/java/java_doc_comment.h>
#include <google/protobuf/compiler/java/java_helpers.h>
#include <google/protobuf/compiler/java/java_name_resolver.h>
#include <google/protobuf/io/printer.h>
#include <google/protobuf/wire_format.h>
#include <google/protobuf/stubs/strutil.h>

namespace google {
namespace protobuf {
namespace compiler {
namespace java {

namespace {

void SetMessageVariables(const FieldDescriptor* descriptor,
                         int messageBitIndex,
                         int builderBitIndex,
                         const FieldGeneratorInfo* info,
                         ClassNameResolver* name_resolver,
                         std::map<string, string>* variables) {
  SetCommonFieldVariables(descriptor, info, variables);

  (*variables)["type"] =
      name_resolver->GetImmutableClassName(descriptor->message_type());
  (*variables)["mutable_type"] =
      name_resolver->GetMutableClassName(descriptor->message_type());
  (*variables)["group_or_message"] =
    (GetType(descriptor) == FieldDescriptor::TYPE_GROUP) ?
    "Group" : "Message";
  // TODO(birdo): Add @deprecated javadoc when generating javadoc is supported
  // by the proto compiler
  (*variables)["deprecation"] = descriptor->options().deprecated()
      ? "@java.lang.Deprecated " : "";
  (*variables)["on_changed"] = "onChanged();";
  (*variables)["ver"] = GeneratedCodeVersionSuffix();
  (*variables)["get_parser"] =
      ExposePublicParser(descriptor->message_type()->file())
          ? "PARSER" : "parser()";

  if (SupportFieldPresence(descriptor->file())) {
    // For singular messages and builders, one bit is used for the hasField bit.
    (*variables)["get_has_field_bit_message"] = GenerateGetBit(messageBitIndex);
    (*variables)["get_has_field_bit_builder"] = GenerateGetBit(builderBitIndex);

    // Note that these have a trailing ";".
    (*variables)["set_has_field_bit_message"] =
        GenerateSetBit(messageBitIndex) + ";";
    (*variables)["set_has_field_bit_builder"] =
        GenerateSetBit(builderBitIndex) + ";";
    (*variables)["clear_has_field_bit_builder"] =
        GenerateClearBit(builderBitIndex) + ";";

    (*variables)["is_field_present_message"] = GenerateGetBit(messageBitIndex);
  } else {
    (*variables)["set_has_field_bit_message"] = "";
    (*variables)["set_has_field_bit_builder"] = "";
    (*variables)["clear_has_field_bit_builder"] = "";

    (*variables)["is_field_present_message"] =
        (*variables)["name"] + "_ != null";
  }

  // For repated builders, one bit is used for whether the array is immutable.
  (*variables)["get_mutable_bit_builder"] = GenerateGetBit(builderBitIndex);
  (*variables)["set_mutable_bit_builder"] = GenerateSetBit(builderBitIndex);
  (*variables)["clear_mutable_bit_builder"] = GenerateClearBit(builderBitIndex);

  // For repeated fields, one bit is used for whether the array is immutable
  // in the parsing constructor.
  (*variables)["get_mutable_bit_parser"] =
      GenerateGetBitMutableLocal(builderBitIndex);
  (*variables)["set_mutable_bit_parser"] =
      GenerateSetBitMutableLocal(builderBitIndex);

  (*variables)["get_has_field_bit_from_local"] =
      GenerateGetBitFromLocal(builderBitIndex);
  (*variables)["set_has_field_bit_to_local"] =
      GenerateSetBitToLocal(messageBitIndex);
}

}  // namespace

// ===================================================================

ImmutableMessageFieldGenerator::
ImmutableMessageFieldGenerator(const FieldDescriptor* descriptor,
                      int messageBitIndex,
                      int builderBitIndex,
                      Context* context)
  : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
    builderBitIndex_(builderBitIndex), context_(context),
    name_resolver_(context->GetNameResolver()) {
    SetMessageVariables(descriptor, messageBitIndex, builderBitIndex,
                        context->GetFieldGeneratorInfo(descriptor),
                        name_resolver_, &variables_);
}

ImmutableMessageFieldGenerator::~ImmutableMessageFieldGenerator() {}

int ImmutableMessageFieldGenerator::GetNumBitsForMessage() const {
  return 1;
}

int ImmutableMessageFieldGenerator::GetNumBitsForBuilder() const {
  return 1;
}

void ImmutableMessageFieldGenerator::
GenerateInterfaceMembers(io::Printer* printer) const {
  // TODO(jonp): In the future, consider having a method specific to the
  // interface so that builders can choose dynamically to either return a
  // message or a nested builder, so that asking for the interface doesn't
  // cause a message to ever be built.
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$boolean has$capitalized_name$();\n");
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$$type$ get$capitalized_name$();\n");

  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$$type$OrBuilder get$capitalized_name$OrBuilder();\n");
}

void ImmutableMessageFieldGenerator::
GenerateMembers(io::Printer* printer) const {
  printer->Print(variables_,
    "private $type$ $name$_;\n");
  PrintExtraFieldInfo(variables_, printer);

  if (SupportFieldPresence(descriptor_->file())) {
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
      "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
      "  return $get_has_field_bit_message$;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
      "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
      "  return $name$_ == null ? $type$.getDefaultInstance() : $name$_;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);

    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
      "$deprecation$public $type$OrBuilder "
      "${$get$capitalized_name$OrBuilder$}$() {\n"
      "  return $name$_ == null ? $type$.getDefaultInstance() : $name$_;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);
  } else {
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
      "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
      "  return $name$_ != null;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
      "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
      "  return $name$_ == null ? $type$.getDefaultInstance() : $name$_;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);

    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
      "$deprecation$public $type$OrBuilder "
      "${$get$capitalized_name$OrBuilder$}$() {\n"
      "  return get$capitalized_name$();\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);
  }
}

void ImmutableMessageFieldGenerator::PrintNestedBuilderCondition(
    io::Printer* printer,
    const char* regular_case,
    const char* nested_builder_case) const {
  printer->Print(variables_, "if ($name$Builder_ == null) {\n");
  printer->Indent();
  printer->Print(variables_, regular_case);
  printer->Outdent();
  printer->Print("} else {\n");
  printer->Indent();
  printer->Print(variables_, nested_builder_case);
  printer->Outdent();
  printer->Print("}\n");
}

void ImmutableMessageFieldGenerator::PrintNestedBuilderFunction(
    io::Printer* printer,
    const char* method_prototype,
    const char* regular_case,
    const char* nested_builder_case,
    const char* trailing_code) const {
  printer->Print(variables_, method_prototype);
  printer->Annotate("{", "}", descriptor_);
  printer->Print(" {\n");
  printer->Indent();
  PrintNestedBuilderCondition(printer, regular_case, nested_builder_case);
  if (trailing_code != NULL) {
    printer->Print(variables_, trailing_code);
  }
  printer->Outdent();
  printer->Print("}\n");
}

void ImmutableMessageFieldGenerator::
GenerateBuilderMembers(io::Printer* printer) const {
  // When using nested-builders, the code initially works just like the
  // non-nested builder case. It only creates a nested builder lazily on
  // demand and then forever delegates to it after creation.

  bool support_field_presence = SupportFieldPresence(descriptor_->file());

  printer->Print(variables_,
    "private $type$ $name$_ = null;\n");

  printer->Print(variables_,
      // If this builder is non-null, it is used and the other fields are
      // ignored.
      "private com.google.protobuf.SingleFieldBuilder$ver$<\n"
      "    $type$, $type$.Builder, $type$OrBuilder> $name$Builder_;"
      "\n");

  // The comments above the methods below are based on a hypothetical
  // field of type "Field" called "Field".

  // boolean hasField()
  WriteFieldDocComment(printer, descriptor_);
  if (support_field_presence) {
    printer->Print(variables_,
      "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
      "  return $get_has_field_bit_builder$;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);
  } else {
    printer->Print(variables_,
      "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
      "  return $name$Builder_ != null || $name$_ != null;\n"
      "}\n");
    printer->Annotate("{", "}", descriptor_);
  }

  // Field getField()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public $type$ ${$get$capitalized_name$$}$()",
    "return $name$_ == null ? $type$.getDefaultInstance() : $name$_;\n",
    "return $name$Builder_.getMessage();\n",
    NULL);

  // Field.Builder setField(Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$set$capitalized_name$$}$($type$ value)",

    "if (value == null) {\n"
    "  throw new NullPointerException();\n"
    "}\n"
    "$name$_ = value;\n"
    "$on_changed$\n",

    "$name$Builder_.setMessage(value);\n",

    "$set_has_field_bit_builder$\n"
    "return this;\n");

  // Field.Builder setField(Field.Builder builderForValue)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$set$capitalized_name$$}$(\n"
    "    $type$.Builder builderForValue)",

    "$name$_ = builderForValue.build();\n"
    "$on_changed$\n",

    "$name$Builder_.setMessage(builderForValue.build());\n",

    "$set_has_field_bit_builder$\n"
    "return this;\n");

  // Field.Builder mergeField(Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$merge$capitalized_name$$}$($type$ value)",

    support_field_presence
        ? "if ($get_has_field_bit_builder$ &&\n"
          "    $name$_ != null &&\n"
          "    $name$_ != $type$.getDefaultInstance()) {\n"
          "  $name$_ =\n"
          "    $type$.newBuilder($name$_).mergeFrom(value).buildPartial();\n"
          "} else {\n"
          "  $name$_ = value;\n"
          "}\n"
          "$on_changed$\n"
        : "if ($name$_ != null) {\n"
          "  $name$_ =\n"
          "    $type$.newBuilder($name$_).mergeFrom(value).buildPartial();\n"
          "} else {\n"
          "  $name$_ = value;\n"
          "}\n"
          "$on_changed$\n",

    "$name$Builder_.mergeFrom(value);\n",

    "$set_has_field_bit_builder$\n"
    "return this;\n");

  // Field.Builder clearField()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$clear$capitalized_name$$}$()",

    "$name$_ = null;\n"
    "$on_changed$\n",

    support_field_presence
        ? "$name$Builder_.clear();\n"
        : "$name$_ = null;\n"
          "$name$Builder_ = null;\n",

    "$clear_has_field_bit_builder$\n"
    "return this;\n");

  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$.Builder "
    "${$get$capitalized_name$Builder$}$() {\n"
    "  $set_has_field_bit_builder$\n"
    "  $on_changed$\n"
    "  return get$capitalized_name$FieldBuilder().getBuilder();\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$OrBuilder "
    "${$get$capitalized_name$OrBuilder$}$() {\n"
    "  if ($name$Builder_ != null) {\n"
    "    return $name$Builder_.getMessageOrBuilder();\n"
    "  } else {\n"
    "    return $name$_ == null ?\n"
    "        $type$.getDefaultInstance() : $name$_;\n"
    "  }\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "private com.google.protobuf.SingleFieldBuilder$ver$<\n"
    "    $type$, $type$.Builder, $type$OrBuilder> \n"
    "    get$capitalized_name$FieldBuilder() {\n"
    "  if ($name$Builder_ == null) {\n"
    "    $name$Builder_ = new com.google.protobuf.SingleFieldBuilder$ver$<\n"
    "        $type$, $type$.Builder, $type$OrBuilder>(\n"
    "            get$capitalized_name$(),\n"
    "            getParentForChildren(),\n"
    "            isClean());\n"
    "    $name$_ = null;\n"
    "  }\n"
    "  return $name$Builder_;\n"
    "}\n");
}

void ImmutableMessageFieldGenerator::
GenerateFieldBuilderInitializationCode(io::Printer* printer)  const {
  if (SupportFieldPresence(descriptor_->file())) {
    printer->Print(variables_,
      "get$capitalized_name$FieldBuilder();\n");
  }
}

void ImmutableMessageFieldGenerator::
GenerateInitializationCode(io::Printer* printer) const {}

void ImmutableMessageFieldGenerator::
GenerateBuilderClearCode(io::Printer* printer) const {
  if (SupportFieldPresence(descriptor_->file())) {
    PrintNestedBuilderCondition(printer,
      "$name$_ = null;\n",

      "$name$Builder_.clear();\n");
    printer->Print(variables_, "$clear_has_field_bit_builder$\n");
  } else {
    PrintNestedBuilderCondition(printer,
      "$name$_ = null;\n",

      "$name$_ = null;\n"
      "$name$Builder_ = null;\n");
  }
}

void ImmutableMessageFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if (other.has$capitalized_name$()) {\n"
    "  merge$capitalized_name$(other.get$capitalized_name$());\n"
    "}\n");
}

void ImmutableMessageFieldGenerator::
GenerateBuildingCode(io::Printer* printer) const {
  if (SupportFieldPresence(descriptor_->file())) {
    printer->Print(variables_,
        "if ($get_has_field_bit_from_local$) {\n"
        "  $set_has_field_bit_to_local$;\n"
        "}\n");
  }

  PrintNestedBuilderCondition(printer,
    "result.$name$_ = $name$_;\n",

    "result.$name$_ = $name$Builder_.build();\n");
}

void ImmutableMessageFieldGenerator::
GenerateParsingCode(io::Printer* printer) const {
  printer->Print(variables_,
    "$type$.Builder subBuilder = null;\n"
    "if ($is_field_present_message$) {\n"
    "  subBuilder = $name$_.toBuilder();\n"
    "}\n");

  if (GetType(descriptor_) == FieldDescriptor::TYPE_GROUP) {
    printer->Print(variables_,
      "$name$_ = input.readGroup($number$, $type$.$get_parser$,\n"
      "    extensionRegistry);\n");
  } else {
    printer->Print(variables_,
      "$name$_ = input.readMessage($type$.$get_parser$, extensionRegistry);\n");
  }

  printer->Print(variables_,
    "if (subBuilder != null) {\n"
    "  subBuilder.mergeFrom($name$_);\n"
    "  $name$_ = subBuilder.buildPartial();\n"
    "}\n"
    "$set_has_field_bit_message$\n");
}

void ImmutableMessageFieldGenerator::
GenerateParsingDoneCode(io::Printer* printer) const {
  // noop for messages.
}

void ImmutableMessageFieldGenerator::
GenerateSerializationCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if ($is_field_present_message$) {\n"
    "  output.write$group_or_message$($number$, get$capitalized_name$());\n"
    "}\n");
}

void ImmutableMessageFieldGenerator::
GenerateSerializedSizeCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if ($is_field_present_message$) {\n"
    "  size += com.google.protobuf.CodedOutputStream\n"
    "    .compute$group_or_message$Size($number$, get$capitalized_name$());\n"
    "}\n");
}

void ImmutableMessageFieldGenerator::
GenerateEqualsCode(io::Printer* printer) const {
  printer->Print(variables_,
    "result = result && get$capitalized_name$()\n"
    "    .equals(other.get$capitalized_name$());\n");
}

void ImmutableMessageFieldGenerator::
GenerateHashCode(io::Printer* printer) const {
  printer->Print(variables_,
    "hash = (37 * hash) + $constant_name$;\n"
    "hash = (53 * hash) + get$capitalized_name$().hashCode();\n");
}

string ImmutableMessageFieldGenerator::GetBoxedType() const {
  return name_resolver_->GetImmutableClassName(descriptor_->message_type());
}

// ===================================================================

ImmutableMessageOneofFieldGenerator::
ImmutableMessageOneofFieldGenerator(const FieldDescriptor* descriptor,
                                 int messageBitIndex,
                                 int builderBitIndex,
                                 Context* context)
    : ImmutableMessageFieldGenerator(
          descriptor, messageBitIndex, builderBitIndex, context) {
  const OneofGeneratorInfo* info =
      context->GetOneofGeneratorInfo(descriptor->containing_oneof());
  SetCommonOneofVariables(descriptor, info, &variables_);
}

ImmutableMessageOneofFieldGenerator::
~ImmutableMessageOneofFieldGenerator() {}

void ImmutableMessageOneofFieldGenerator::
GenerateMembers(io::Printer* printer) const {
  PrintExtraFieldInfo(variables_, printer);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
    "  return $has_oneof_case_message$;\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
    "  if ($has_oneof_case_message$) {\n"
    "     return ($type$) $oneof_name$_;\n"
    "  }\n"
    "  return $type$.getDefaultInstance();\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);

  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$OrBuilder "
    "${$get$capitalized_name$OrBuilder$}$() {\n"
    "  if ($has_oneof_case_message$) {\n"
    "     return ($type$) $oneof_name$_;\n"
    "  }\n"
    "  return $type$.getDefaultInstance();\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
}

void ImmutableMessageOneofFieldGenerator::
GenerateBuilderMembers(io::Printer* printer) const {
  // When using nested-builders, the code initially works just like the
  // non-nested builder case. It only creates a nested builder lazily on
  // demand and then forever delegates to it after creation.
  printer->Print(variables_,
    // If this builder is non-null, it is used and the other fields are
    // ignored.
    "private com.google.protobuf.SingleFieldBuilder$ver$<\n"
    "    $type$, $type$.Builder, $type$OrBuilder> $name$Builder_;"
    "\n");

  // The comments above the methods below are based on a hypothetical
  // field of type "Field" called "Field".

  // boolean hasField()
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
    "  return $has_oneof_case_message$;\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);

  // Field getField()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public $type$ ${$get$capitalized_name$$}$()",

    "if ($has_oneof_case_message$) {\n"
    "  return ($type$) $oneof_name$_;\n"
    "}\n"
    "return $type$.getDefaultInstance();\n",

    "if ($has_oneof_case_message$) {\n"
    "  return $name$Builder_.getMessage();\n"
    "}\n"
    "return $type$.getDefaultInstance();\n",

    NULL);

  // Field.Builder setField(Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$set$capitalized_name$$}$($type$ value)",

    "if (value == null) {\n"
    "  throw new NullPointerException();\n"
    "}\n"
    "$oneof_name$_ = value;\n"
    "$on_changed$\n",

    "$name$Builder_.setMessage(value);\n",

    "$set_oneof_case_message$;\n"
    "return this;\n");

  // Field.Builder setField(Field.Builder builderForValue)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$set$capitalized_name$$}$(\n"
    "    $type$.Builder builderForValue)",

    "$oneof_name$_ = builderForValue.build();\n"
    "$on_changed$\n",

    "$name$Builder_.setMessage(builderForValue.build());\n",

    "$set_oneof_case_message$;\n"
    "return this;\n");

  // Field.Builder mergeField(Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$merge$capitalized_name$$}$($type$ value)",

    "if ($has_oneof_case_message$ &&\n"
    "    $oneof_name$_ != $type$.getDefaultInstance()) {\n"
    "  $oneof_name$_ = $type$.newBuilder(($type$) $oneof_name$_)\n"
    "      .mergeFrom(value).buildPartial();\n"
    "} else {\n"
    "  $oneof_name$_ = value;\n"
    "}\n"
    "$on_changed$\n",

    "if ($has_oneof_case_message$) {\n"
    "  $name$Builder_.mergeFrom(value);\n"
    "}\n"
    "$name$Builder_.setMessage(value);\n",

    "$set_oneof_case_message$;\n"
    "return this;\n");

  // Field.Builder clearField()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$clear$capitalized_name$$}$()",

    "if ($has_oneof_case_message$) {\n"
    "  $clear_oneof_case_message$;\n"
    "  $oneof_name$_ = null;\n"
    "  $on_changed$\n"
    "}\n",

    "if ($has_oneof_case_message$) {\n"
    "  $clear_oneof_case_message$;\n"
    "  $oneof_name$_ = null;\n"
    "}\n"
    "$name$Builder_.clear();\n",

    "return this;\n");

  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$.Builder "
    "${$get$capitalized_name$Builder$}$() {\n"
    "  return get$capitalized_name$FieldBuilder().getBuilder();\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$OrBuilder "
    "${$get$capitalized_name$OrBuilder$}$() {\n"
    "  if (($has_oneof_case_message$) && ($name$Builder_ != null)) {\n"
    "    return $name$Builder_.getMessageOrBuilder();\n"
    "  } else {\n"
    "    if ($has_oneof_case_message$) {\n"
    "      return ($type$) $oneof_name$_;\n"
    "    }\n"
    "    return $type$.getDefaultInstance();\n"
    "  }\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "private com.google.protobuf.SingleFieldBuilder$ver$<\n"
    "    $type$, $type$.Builder, $type$OrBuilder> \n"
    "    ${$get$capitalized_name$FieldBuilder$}$() {\n"
    "  if ($name$Builder_ == null) {\n"
    "    if (!($has_oneof_case_message$)) {\n"
    "      $oneof_name$_ = $type$.getDefaultInstance();\n"
    "    }\n"
    "    $name$Builder_ = new com.google.protobuf.SingleFieldBuilder$ver$<\n"
    "        $type$, $type$.Builder, $type$OrBuilder>(\n"
    "            ($type$) $oneof_name$_,\n"
    "            getParentForChildren(),\n"
    "            isClean());\n"
    "    $oneof_name$_ = null;\n"
    "  }\n"
    "  $set_oneof_case_message$;\n"
    "  $on_changed$;\n"
    "  return $name$Builder_;\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
}

void ImmutableMessageOneofFieldGenerator::
GenerateBuildingCode(io::Printer* printer) const {

  printer->Print(variables_,
                 "if ($has_oneof_case_message$) {\n");
  printer->Indent();

  PrintNestedBuilderCondition(printer,
    "result.$oneof_name$_ = $oneof_name$_;\n",

    "result.$oneof_name$_ = $name$Builder_.build();\n");

  printer->Outdent();
  printer->Print("}\n");
}

void ImmutableMessageOneofFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
  printer->Print(variables_,
    "merge$capitalized_name$(other.get$capitalized_name$());\n");
}

void ImmutableMessageOneofFieldGenerator::
GenerateParsingCode(io::Printer* printer) const {
  printer->Print(variables_,
    "$type$.Builder subBuilder = null;\n"
    "if ($has_oneof_case_message$) {\n"
    "  subBuilder = (($type$) $oneof_name$_).toBuilder();\n"
    "}\n");

  if (GetType(descriptor_) == FieldDescriptor::TYPE_GROUP) {
    printer->Print(variables_,
      "$oneof_name$_ = input.readGroup($number$, $type$.$get_parser$,\n"
      "    extensionRegistry);\n");
  } else {
    printer->Print(variables_,
      "$oneof_name$_ =\n"
      "    input.readMessage($type$.$get_parser$, extensionRegistry);\n");
  }

  printer->Print(variables_,
    "if (subBuilder != null) {\n"
    "  subBuilder.mergeFrom(($type$) $oneof_name$_);\n"
    "  $oneof_name$_ = subBuilder.buildPartial();\n"
    "}\n");
  printer->Print(variables_,
    "$set_oneof_case_message$;\n");
}

void ImmutableMessageOneofFieldGenerator::
GenerateSerializationCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if ($has_oneof_case_message$) {\n"
    "  output.write$group_or_message$($number$, ($type$) $oneof_name$_);\n"
    "}\n");
}

void ImmutableMessageOneofFieldGenerator::
GenerateSerializedSizeCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if ($has_oneof_case_message$) {\n"
    "  size += com.google.protobuf.CodedOutputStream\n"
    "    .compute$group_or_message$Size($number$, ($type$) $oneof_name$_);\n"
    "}\n");
}

// ===================================================================

RepeatedImmutableMessageFieldGenerator::
RepeatedImmutableMessageFieldGenerator(const FieldDescriptor* descriptor,
                                       int messageBitIndex,
                                       int builderBitIndex,
                                       Context* context)
  : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
    builderBitIndex_(builderBitIndex), context_(context),
    name_resolver_(context->GetNameResolver())  {
  SetMessageVariables(descriptor, messageBitIndex, builderBitIndex,
                      context->GetFieldGeneratorInfo(descriptor),
                      name_resolver_, &variables_);
}

RepeatedImmutableMessageFieldGenerator::
~RepeatedImmutableMessageFieldGenerator() {}

int RepeatedImmutableMessageFieldGenerator::GetNumBitsForMessage() const {
  return 0;
}

int RepeatedImmutableMessageFieldGenerator::GetNumBitsForBuilder() const {
  return 1;
}

void RepeatedImmutableMessageFieldGenerator::
GenerateInterfaceMembers(io::Printer* printer) const {
  // TODO(jonp): In the future, consider having methods specific to the
  // interface so that builders can choose dynamically to either return a
  // message or a nested builder, so that asking for the interface doesn't
  // cause a message to ever be built.
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$java.util.List<$type$> \n"
    "    get$capitalized_name$List();\n");
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$$type$ get$capitalized_name$(int index);\n");
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$int get$capitalized_name$Count();\n");

  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$java.util.List<? extends $type$OrBuilder> \n"
    "    get$capitalized_name$OrBuilderList();\n");
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$$type$OrBuilder get$capitalized_name$OrBuilder(\n"
    "    int index);\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateMembers(io::Printer* printer) const {
  printer->Print(variables_,
    "private java.util.List<$type$> $name$_;\n");
  PrintExtraFieldInfo(variables_, printer);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public java.util.List<$type$> "
    "${$get$capitalized_name$List$}$() {\n"
    "  return $name$_;\n"   // note:  unmodifiable list
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public java.util.List<? extends $type$OrBuilder> \n"
    "    ${$get$capitalized_name$OrBuilderList$}$() {\n"
    "  return $name$_;\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public int ${$get$capitalized_name$Count$}$() {\n"
    "  return $name$_.size();\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$ ${$get$capitalized_name$$}$(int index) {\n"
    "  return $name$_.get(index);\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$OrBuilder "
    "${$get$capitalized_name$OrBuilder$}$(\n"
    "    int index) {\n"
    "  return $name$_.get(index);\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);

}

void RepeatedImmutableMessageFieldGenerator::PrintNestedBuilderCondition(
    io::Printer* printer,
    const char* regular_case,
    const char* nested_builder_case) const {
  printer->Print(variables_, "if ($name$Builder_ == null) {\n");
  printer->Indent();
  printer->Print(variables_, regular_case);
  printer->Outdent();
  printer->Print("} else {\n");
  printer->Indent();
  printer->Print(variables_, nested_builder_case);
  printer->Outdent();
  printer->Print("}\n");
}

void RepeatedImmutableMessageFieldGenerator::PrintNestedBuilderFunction(
    io::Printer* printer,
    const char* method_prototype,
    const char* regular_case,
    const char* nested_builder_case,
    const char* trailing_code) const {
  printer->Print(variables_, method_prototype);
  printer->Annotate("{", "}", descriptor_);
  printer->Print(" {\n");
  printer->Indent();
  PrintNestedBuilderCondition(printer, regular_case, nested_builder_case);
  if (trailing_code != NULL) {
    printer->Print(variables_, trailing_code);
  }
  printer->Outdent();
  printer->Print("}\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateBuilderMembers(io::Printer* printer) const {
  // When using nested-builders, the code initially works just like the
  // non-nested builder case. It only creates a nested builder lazily on
  // demand and then forever delegates to it after creation.

  printer->Print(variables_,
    // Used when the builder is null.
    // One field is the list and the other field keeps track of whether the
    // list is immutable. If it's immutable, the invariant is that it must
    // either an instance of Collections.emptyList() or it's an ArrayList
    // wrapped in a Collections.unmodifiableList() wrapper and nobody else has
    // a refererence to the underlying ArrayList. This invariant allows us to
    // share instances of lists between protocol buffers avoiding expensive
    // memory allocations. Note, immutable is a strong guarantee here -- not
    // just that the list cannot be modified via the reference but that the
    // list can never be modified.
    "private java.util.List<$type$> $name$_ =\n"
    "  java.util.Collections.emptyList();\n"

    "private void ensure$capitalized_name$IsMutable() {\n"
    "  if (!$get_mutable_bit_builder$) {\n"
    "    $name$_ = new java.util.ArrayList<$type$>($name$_);\n"
    "    $set_mutable_bit_builder$;\n"
    "   }\n"
    "}\n"
    "\n");

  printer->Print(variables_,
    // If this builder is non-null, it is used and the other fields are
    // ignored.
    "private com.google.protobuf.RepeatedFieldBuilder$ver$<\n"
    "    $type$, $type$.Builder, $type$OrBuilder> $name$Builder_;\n"
    "\n");

  // The comments above the methods below are based on a hypothetical
  // repeated field of type "Field" called "RepeatedField".

  // List<Field> getRepeatedFieldList()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public java.util.List<$type$> "
    "${$get$capitalized_name$List$}$()",

    "return java.util.Collections.unmodifiableList($name$_);\n",
    "return $name$Builder_.getMessageList();\n",

    NULL);

  // int getRepeatedFieldCount()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public int ${$get$capitalized_name$Count$}$()",

    "return $name$_.size();\n",
    "return $name$Builder_.getCount();\n",

    NULL);

  // Field getRepeatedField(int index)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public $type$ ${$get$capitalized_name$$}$(int index)",

    "return $name$_.get(index);\n",

    "return $name$Builder_.getMessage(index);\n",

    NULL);

  // Builder setRepeatedField(int index, Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$set$capitalized_name$$}$(\n"
    "    int index, $type$ value)",
    "if (value == null) {\n"
    "  throw new NullPointerException();\n"
    "}\n"
    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.set(index, value);\n"
    "$on_changed$\n",
    "$name$Builder_.setMessage(index, value);\n",
    "return this;\n");

  // Builder setRepeatedField(int index, Field.Builder builderForValue)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$set$capitalized_name$$}$(\n"
    "    int index, $type$.Builder builderForValue)",

    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.set(index, builderForValue.build());\n"
    "$on_changed$\n",

    "$name$Builder_.setMessage(index, builderForValue.build());\n",

    "return this;\n");

  // Builder addRepeatedField(Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$add$capitalized_name$$}$($type$ value)",

    "if (value == null) {\n"
    "  throw new NullPointerException();\n"
    "}\n"
    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.add(value);\n"

    "$on_changed$\n",

    "$name$Builder_.addMessage(value);\n",

    "return this;\n");

  // Builder addRepeatedField(int index, Field value)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$add$capitalized_name$$}$(\n"
    "    int index, $type$ value)",

    "if (value == null) {\n"
    "  throw new NullPointerException();\n"
    "}\n"
    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.add(index, value);\n"
    "$on_changed$\n",

    "$name$Builder_.addMessage(index, value);\n",

    "return this;\n");

  // Builder addRepeatedField(Field.Builder builderForValue)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$add$capitalized_name$$}$(\n"
    "    $type$.Builder builderForValue)",

    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.add(builderForValue.build());\n"
    "$on_changed$\n",

    "$name$Builder_.addMessage(builderForValue.build());\n",

    "return this;\n");

  // Builder addRepeatedField(int index, Field.Builder builderForValue)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$add$capitalized_name$$}$(\n"
    "    int index, $type$.Builder builderForValue)",

    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.add(index, builderForValue.build());\n"
    "$on_changed$\n",

    "$name$Builder_.addMessage(index, builderForValue.build());\n",

    "return this;\n");

  // Builder addAllRepeatedField(Iterable<Field> values)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$addAll$capitalized_name$$}$(\n"
    "    java.lang.Iterable<? extends $type$> values)",

    "ensure$capitalized_name$IsMutable();\n"
    "com.google.protobuf.AbstractMessageLite.Builder.addAll(\n"
    "    values, $name$_);\n"
    "$on_changed$\n",

    "$name$Builder_.addAllMessages(values);\n",

    "return this;\n");

  // Builder clearAllRepeatedField()
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$clear$capitalized_name$$}$()",

    "$name$_ = java.util.Collections.emptyList();\n"
    "$clear_mutable_bit_builder$;\n"
    "$on_changed$\n",

    "$name$Builder_.clear();\n",

    "return this;\n");

  // Builder removeRepeatedField(int index)
  WriteFieldDocComment(printer, descriptor_);
  PrintNestedBuilderFunction(printer,
    "$deprecation$public Builder ${$remove$capitalized_name$$}$(int index)",

    "ensure$capitalized_name$IsMutable();\n"
    "$name$_.remove(index);\n"
    "$on_changed$\n",

    "$name$Builder_.remove(index);\n",

    "return this;\n");

  WriteFieldDocComment(printer, descriptor_);
  printer->Print(variables_,
    "$deprecation$public $type$.Builder ${$get$capitalized_name$Builder$}$(\n"
    "    int index) {\n"
    "  return get$capitalized_name$FieldBuilder().getBuilder(index);\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);

  WriteFieldDocComment(printer, descriptor_);
      printer->Print(variables_,
    "$deprecation$public $type$OrBuilder "
    "${$get$capitalized_name$OrBuilder$}$(\n"
    "    int index) {\n"
    "  if ($name$Builder_ == null) {\n"
    "    return $name$_.get(index);"
    "  } else {\n"
    "    return $name$Builder_.getMessageOrBuilder(index);\n"
    "  }\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);

  WriteFieldDocComment(printer, descriptor_);
      printer->Print(variables_,
    "$deprecation$public java.util.List<? extends $type$OrBuilder> \n"
    "     ${$get$capitalized_name$OrBuilderList$}$() {\n"
    "  if ($name$Builder_ != null) {\n"
    "    return $name$Builder_.getMessageOrBuilderList();\n"
    "  } else {\n"
    "    return java.util.Collections.unmodifiableList($name$_);\n"
    "  }\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);

  WriteFieldDocComment(printer, descriptor_);
      printer->Print(variables_,
    "$deprecation$public $type$.Builder "
    "${$add$capitalized_name$Builder$}$() {\n"
    "  return get$capitalized_name$FieldBuilder().addBuilder(\n"
    "      $type$.getDefaultInstance());\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
      printer->Print(variables_,
    "$deprecation$public $type$.Builder ${$add$capitalized_name$Builder$}$(\n"
    "    int index) {\n"
    "  return get$capitalized_name$FieldBuilder().addBuilder(\n"
    "      index, $type$.getDefaultInstance());\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
      printer->Print(variables_,
    "$deprecation$public java.util.List<$type$.Builder> \n"
    "     ${$get$capitalized_name$BuilderList$}$() {\n"
    "  return get$capitalized_name$FieldBuilder().getBuilderList();\n"
    "}\n"
    "private com.google.protobuf.RepeatedFieldBuilder$ver$<\n"
    "    $type$, $type$.Builder, $type$OrBuilder> \n"
    "    get$capitalized_name$FieldBuilder() {\n"
    "  if ($name$Builder_ == null) {\n"
    "    $name$Builder_ = new com.google.protobuf.RepeatedFieldBuilder$ver$<\n"
    "        $type$, $type$.Builder, $type$OrBuilder>(\n"
    "            $name$_,\n"
    "            $get_mutable_bit_builder$,\n"
    "            getParentForChildren(),\n"
    "            isClean());\n"
    "    $name$_ = null;\n"
    "  }\n"
    "  return $name$Builder_;\n"
    "}\n");
  printer->Annotate("{", "}", descriptor_);
}

void RepeatedImmutableMessageFieldGenerator::
GenerateFieldBuilderInitializationCode(io::Printer* printer)  const {
  printer->Print(variables_,
    "get$capitalized_name$FieldBuilder();\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateInitializationCode(io::Printer* printer) const {
  printer->Print(variables_, "$name$_ = java.util.Collections.emptyList();\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateBuilderClearCode(io::Printer* printer) const {
  PrintNestedBuilderCondition(printer,
    "$name$_ = java.util.Collections.emptyList();\n"
    "$clear_mutable_bit_builder$;\n",

    "$name$Builder_.clear();\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
  // The code below does two optimizations (non-nested builder case):
  //   1. If the other list is empty, there's nothing to do. This ensures we
  //      don't allocate a new array if we already have an immutable one.
  //   2. If the other list is non-empty and our current list is empty, we can
  //      reuse the other list which is guaranteed to be immutable.
  PrintNestedBuilderCondition(printer,
    "if (!other.$name$_.isEmpty()) {\n"
    "  if ($name$_.isEmpty()) {\n"
    "    $name$_ = other.$name$_;\n"
    "    $clear_mutable_bit_builder$;\n"
    "  } else {\n"
    "    ensure$capitalized_name$IsMutable();\n"
    "    $name$_.addAll(other.$name$_);\n"
    "  }\n"
    "  $on_changed$\n"
    "}\n",

    "if (!other.$name$_.isEmpty()) {\n"
    "  if ($name$Builder_.isEmpty()) {\n"
    "    $name$Builder_.dispose();\n"
    "    $name$Builder_ = null;\n"
    "    $name$_ = other.$name$_;\n"
    "    $clear_mutable_bit_builder$;\n"
    "    $name$Builder_ = \n"
    "      com.google.protobuf.GeneratedMessage$ver$.alwaysUseFieldBuilders ?\n"
    "         get$capitalized_name$FieldBuilder() : null;\n"
    "  } else {\n"
    "    $name$Builder_.addAllMessages(other.$name$_);\n"
    "  }\n"
    "}\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateBuildingCode(io::Printer* printer) const {
  // The code below (non-nested builder case) ensures that the result has an
  // immutable list. If our list is immutable, we can just reuse it. If not,
  // we make it immutable.
  PrintNestedBuilderCondition(printer,
    "if ($get_mutable_bit_builder$) {\n"
    "  $name$_ = java.util.Collections.unmodifiableList($name$_);\n"
    "  $clear_mutable_bit_builder$;\n"
    "}\n"
    "result.$name$_ = $name$_;\n",

    "result.$name$_ = $name$Builder_.build();\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateParsingCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if (!$get_mutable_bit_parser$) {\n"
    "  $name$_ = new java.util.ArrayList<$type$>();\n"
    "  $set_mutable_bit_parser$;\n"
    "}\n");

  if (GetType(descriptor_) == FieldDescriptor::TYPE_GROUP) {
    printer->Print(variables_,
      "$name$_.add(input.readGroup($number$, $type$.$get_parser$,\n"
      "    extensionRegistry));\n");
  } else {
    printer->Print(variables_,
      "$name$_.add(\n"
      "    input.readMessage($type$.$get_parser$, extensionRegistry));\n");
  }
}

void RepeatedImmutableMessageFieldGenerator::
GenerateParsingDoneCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if ($get_mutable_bit_parser$) {\n"
    "  $name$_ = java.util.Collections.unmodifiableList($name$_);\n"
    "}\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateSerializationCode(io::Printer* printer) const {
  printer->Print(variables_,
    "for (int i = 0; i < $name$_.size(); i++) {\n"
    "  output.write$group_or_message$($number$, $name$_.get(i));\n"
    "}\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateSerializedSizeCode(io::Printer* printer) const {
  printer->Print(variables_,
    "for (int i = 0; i < $name$_.size(); i++) {\n"
    "  size += com.google.protobuf.CodedOutputStream\n"
    "    .compute$group_or_message$Size($number$, $name$_.get(i));\n"
    "}\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateEqualsCode(io::Printer* printer) const {
  printer->Print(variables_,
    "result = result && get$capitalized_name$List()\n"
    "    .equals(other.get$capitalized_name$List());\n");
}

void RepeatedImmutableMessageFieldGenerator::
GenerateHashCode(io::Printer* printer) const {
  printer->Print(variables_,
    "if (get$capitalized_name$Count() > 0) {\n"
    "  hash = (37 * hash) + $constant_name$;\n"
    "  hash = (53 * hash) + get$capitalized_name$List().hashCode();\n"
    "}\n");
}

string RepeatedImmutableMessageFieldGenerator::GetBoxedType() const {
  return name_resolver_->GetImmutableClassName(descriptor_->message_type());
}

}  // namespace java
}  // namespace compiler
}  // namespace protobuf
}  // namespace google

mime_type: text/plain


text:
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Author: kenton@google.com (Kenton Varda)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_MESSAGE_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_MESSAGE_H__

#include <string>
#include <map>
#include <google/protobuf/compiler/java/java_field.h>

namespace google {
namespace protobuf {
  namespace compiler {
    namespace java {
      class Context;           // context.h
      class ClassNameResolver; // name_resolver.h
    }
  }
  namespace io {
    class Printer;             // printer.h
  }
}

namespace protobuf {
namespace compiler {
namespace java {

static const int kMaxStaticSize = 1 << 15;  // aka 32k

class MessageGenerator {
 public:
  explicit MessageGenerator(const Descriptor* descriptor);
  virtual ~MessageGenerator();

  // All static variables have to be declared at the top-level of the file
  // so that we can control initialization order, which is important for
  // DescriptorProto bootstrapping to work.
  virtual void GenerateStaticVariables(
      io::Printer* printer, int* bytecode_estimate) = 0;

  // Output code which initializes the static variables generated by
  // GenerateStaticVariables(). Returns an estimate of bytecode size.
  virtual int GenerateStaticVariableInitializers(io::Printer* printer) = 0;

  // Generate the class itself.
  virtual void Generate(io::Printer* printer) = 0;

  // Generates the base interface that both the class and its builder implement
  virtual void GenerateInterface(io::Printer* printer) = 0;

  // Generate code to register all contained extensions with an
  // ExtensionRegistry.
  virtual void GenerateExtensionRegistrationCode(io::Printer* printer) = 0;

 protected:
  const Descriptor* descriptor_;

 private:
  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(MessageGenerator);
};

class ImmutableMessageGenerator : public MessageGenerator {
 public:
  ImmutableMessageGenerator(const Descriptor* descriptor, Context* context);
  virtual ~ImmutableMessageGenerator();

  virtual void Generate(io::Printer* printer);
  virtual void GenerateInterface(io::Printer* printer);
  virtual void GenerateExtensionRegistrationCode(io::Printer* printer);
  virtual void GenerateStaticVariables(
      io::Printer* printer, int* bytecode_estimate);

  // Returns an estimate of the number of bytes the printed code will compile to
  virtual int GenerateStaticVariableInitializers(io::Printer* printer);

 private:

  void GenerateFieldAccessorTable(io::Printer* printer, int* bytecode_estimate);

  // Returns an estimate of the number of bytes the printed code will compile to
  int GenerateFieldAccessorTableInitializer(io::Printer* printer);

  void GenerateMessageSerializationMethods(io::Printer* printer);
  void GenerateParseFromMethods(io::Printer* printer);
  void GenerateSerializeOneField(io::Printer* printer,
                                 const FieldDescriptor* field);
  void GenerateSerializeOneExtensionRange(
      io::Printer* printer, const Descriptor::ExtensionRange* range);

  void GenerateBuilder(io::Printer* printer);
  void GenerateIsInitialized(io::Printer* printer);
  void GenerateDescriptorMethods(io::Printer* printer);
  void GenerateInitializers(io::Printer* printer);
  void GenerateEqualsAndHashCode(io::Printer* printer);
  void GenerateParser(io::Printer* printer);
  void GenerateParsingConstructor(io::Printer* printer);
  void GenerateAnyMethods(io::Printer* printer);

  Context* context_;
  ClassNameResolver* name_resolver_;
  FieldGeneratorMap<ImmutableFieldGenerator> field_generators_;

  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableMessageGenerator);
};

}  // namespace java
}  // namespace compiler
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_MESSAGE_H__


text:
// 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.

#include <google/protobuf/compiler/java/java_map_field.h>

#include <google/protobuf/compiler/java/java_context.h>
#include <google/protobuf/compiler/java/java_doc_comment.h>
#include <google/protobuf/compiler/java/java_helpers.h>
#include <google/protobuf/compiler/java/java_name_resolver.h>
#include <google/protobuf/io/printer.h>

namespace google {
namespace protobuf {
namespace compiler {
namespace java {

namespace {

const FieldDescriptor* KeyField(const FieldDescriptor* descriptor) {
  GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, descriptor->type());
  const Descriptor* message = descriptor->message_type();
  GOOGLE_CHECK(message->options().map_entry());
  return message->FindFieldByName("key");
}

const FieldDescriptor* ValueField(const FieldDescriptor* descriptor) {
  GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, descriptor->type());
  const Descriptor* message = descriptor->message_type();
  GOOGLE_CHECK(message->options().map_entry());
  return message->FindFieldByName("value");
}

string TypeName(const FieldDescriptor* field,
                ClassNameResolver* name_resolver,
                bool boxed) {
  if (GetJavaType(field) == JAVATYPE_MESSAGE) {
    return name_resolver->GetImmutableClassName(field->message_type());
  } else if (GetJavaType(field) == JAVATYPE_ENUM) {
    return name_resolver->GetImmutableClassName(field->enum_type());
  } else {
    return boxed ? BoxedPrimitiveTypeName(GetJavaType(field))
                 : PrimitiveTypeName(GetJavaType(field));
  }
}

string WireType(const FieldDescriptor* field) {
  return "com.google.protobuf.WireFormat.FieldType." +
      string(FieldTypeName(field->type()));
}

void SetMessageVariables(const FieldDescriptor* descriptor,
                         int messageBitIndex,
                         int builderBitIndex,
                         const FieldGeneratorInfo* info,
                         Context* context,
                         std::map<string, string>* variables) {
  SetCommonFieldVariables(descriptor, info, variables);
  ClassNameResolver* name_resolver = context->GetNameResolver();

  (*variables)["type"] =
      name_resolver->GetImmutableClassName(descriptor->message_type());
  const FieldDescriptor* key = KeyField(descriptor);
  const FieldDescriptor* value = ValueField(descriptor);
  const JavaType keyJavaType = GetJavaType(key);
  const JavaType valueJavaType = GetJavaType(value);

  (*variables)["key_type"] = TypeName(key, name_resolver, false);
  string boxed_key_type = TypeName(key, name_resolver, true);
  (*variables)["boxed_key_type"] = boxed_key_type;
  // Used for calling the serialization function.
  (*variables)["short_key_type"] =
      boxed_key_type.substr(boxed_key_type.rfind('.') + 1);
  (*variables)["key_wire_type"] = WireType(key);
  (*variables)["key_default_value"] = DefaultValue(key, true, name_resolver);
  (*variables)["key_null_check"] = IsReferenceType(keyJavaType) ?
      "if (key == null) { throw new java.lang.NullPointerException(); }" : "";
  (*variables)["value_null_check"] = IsReferenceType(valueJavaType) ?
      "if (value == null) { throw new java.lang.NullPointerException(); }" : "";
  if (valueJavaType == JAVATYPE_ENUM) {
    // We store enums as Integers internally.
    (*variables)["value_type"] = "int";
    (*variables)["boxed_value_type"] = "java.lang.Integer";
    (*variables)["value_wire_type"] = WireType(value);
    (*variables)["value_default_value"] =
        DefaultValue(value, true, name_resolver) + ".getNumber()";

    (*variables)["value_enum_type"] = TypeName(value, name_resolver, false);

    if (SupportUnknownEnumValue(descriptor->file())) {
      // Map unknown values to a special UNRECOGNIZED value if supported.
      (*variables)["unrecognized_value"] =
          (*variables)["value_enum_type"] + ".UNRECOGNIZED";
    } else {
      // Map unknown values to the default value if we don't have UNRECOGNIZED.
      (*variables)["unrecognized_value"] =
          DefaultValue(value, true, name_resolver);
    }
  } else {
    (*variables)["value_type"] = TypeName(value, name_resolver, false);
    (*variables)["boxed_value_type"] = TypeName(value, name_resolver, true);
    (*variables)["value_wire_type"] = WireType(value);
    (*variables)["value_default_value"] =
        DefaultValue(value, true, name_resolver);
  }
  (*variables)["type_parameters"] =
      (*variables)["boxed_key_type"] + ", " + (*variables)["boxed_value_type"];
  // TODO(birdo): Add @deprecated javadoc when generating javadoc is supported
  // by the proto compiler
  (*variables)["deprecation"] = descriptor->options().deprecated()
      ? "@java.lang.Deprecated " : "";
  (*variables)["on_changed"] = "onChanged();";

  // For repeated fields, one bit is used for whether the array is immutable
  // in the parsing constructor.
  (*variables)["get_mutable_bit_parser"] =
      GenerateGetBitMutableLocal(builderBitIndex);
  (*variables)["set_mutable_bit_parser"] =
      GenerateSetBitMutableLocal(builderBitIndex);

  (*variables)["default_entry"] = (*variables)["capitalized_name"] +
      "DefaultEntryHolder.defaultEntry";
  (*variables)["map_field_parameter"] = (*variables)["default_entry"];
  (*variables)["descriptor"] =
      name_resolver->GetImmutableClassName(descriptor->file()) +
      ".internal_" + UniqueFileScopeIdentifier(descriptor->message_type()) +
      "_descriptor, ";
  (*variables)["ver"] = GeneratedCodeVersionSuffix();
}

}  // namespace

ImmutableMapFieldGenerator::
ImmutableMapFieldGenerator(const FieldDescriptor* descriptor,
                                       int messageBitIndex,
                                       int builderBitIndex,
                                       Context* context)
  : descriptor_(descriptor), name_resolver_(context->GetNameResolver())  {
  SetMessageVariables(descriptor, messageBitIndex, builderBitIndex,
                      context->GetFieldGeneratorInfo(descriptor),
                      context, &variables_);
}

ImmutableMapFieldGenerator::
~ImmutableMapFieldGenerator() {}

int ImmutableMapFieldGenerator::GetNumBitsForMessage() const {
  return 0;
}

int ImmutableMapFieldGenerator::GetNumBitsForBuilder() const {
  return 1;
}

void ImmutableMapFieldGenerator::
GenerateInterfaceMembers(io::Printer* printer) const {
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(
      variables_,
      "$deprecation$int ${$get$capitalized_name$Count$}$();\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(
      variables_,
      "$deprecation$boolean ${$contains$capitalized_name$$}$(\n"
      "    $key_type$ key);\n");
  printer->Annotate("{", "}", descriptor_);
  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
    printer->Print(
        variables_,
        "/**\n"
        " * Use {@link #get$capitalized_name$Map()} instead.\n"
        " */\n"
        "@java.lang.Deprecated\n"
        "java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
        "${$get$capitalized_name$$}$();\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
        "${$get$capitalized_name$Map$}$();\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$$value_enum_type$ ${$get$capitalized_name$OrDefault$}$(\n"
        "    $key_type$ key,\n"
        "    $value_enum_type$ defaultValue);\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$$value_enum_type$ ${$get$capitalized_name$OrThrow$}$(\n"
        "    $key_type$ key);\n");
    printer->Annotate("{", "}", descriptor_);
    if (SupportUnknownEnumValue(descriptor_->file())) {
      printer->Print(
          variables_,
          "/**\n"
          " * Use {@link #get$capitalized_name$ValueMap()} instead.\n"
          " */\n"
          "@java.lang.Deprecated\n"
          "java.util.Map<$type_parameters$>\n"
          "${$get$capitalized_name$Value$}$();\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$java.util.Map<$type_parameters$>\n"
          "${$get$capitalized_name$ValueMap$}$();\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$\n"
          "$value_type$ ${$get$capitalized_name$ValueOrDefault$}$(\n"
          "    $key_type$ key,\n"
          "    $value_type$ defaultValue);\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$\n"
          "$value_type$ ${$get$capitalized_name$ValueOrThrow$}$(\n"
          "    $key_type$ key);\n");
      printer->Annotate("{", "}", descriptor_);
    }
  } else {
    printer->Print(
        variables_,
        "/**\n"
        " * Use {@link #get$capitalized_name$Map()} instead.\n"
        " */\n"
        "@java.lang.Deprecated\n"
        "java.util.Map<$type_parameters$>\n"
        "${$get$capitalized_name$$}$();\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$java.util.Map<$type_parameters$>\n"
        "${$get$capitalized_name$Map$}$();\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "$value_type$ ${$get$capitalized_name$OrDefault$}$(\n"
        "    $key_type$ key,\n"
        "    $value_type$ defaultValue);\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "$value_type$ ${$get$capitalized_name$OrThrow$}$(\n"
        "    $key_type$ key);\n");
    printer->Annotate("{", "}", descriptor_);
  }
}

void ImmutableMapFieldGenerator::
GenerateMembers(io::Printer* printer) const {
  printer->Print(
      variables_,
      "private static final class $capitalized_name$DefaultEntryHolder {\n"
      "  static final com.google.protobuf.MapEntry<\n"
      "      $type_parameters$> defaultEntry =\n"
      "          com.google.protobuf.MapEntry\n"
      "          .<$type_parameters$>newDefaultInstance(\n"
      "              $descriptor$\n"
      "              $key_wire_type$,\n"
      "              $key_default_value$,\n"
      "              $value_wire_type$,\n"
      "              $value_default_value$);\n"
      "}\n");
  printer->Print(
      variables_,
      "private com.google.protobuf.MapField<\n"
      "    $type_parameters$> $name$_;\n"
      "private com.google.protobuf.MapField<$type_parameters$>\n"
      "internalGet$capitalized_name$() {\n"
      "  if ($name$_ == null) {\n"
      "    return com.google.protobuf.MapField.emptyMapField(\n"
      "        $map_field_parameter$);\n"
      "  }\n"
      "  return $name$_;\n"
      "}\n");
  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
    printer->Print(
        variables_,
        "private static final\n"
        "com.google.protobuf.Internal.MapAdapter.Converter<\n"
        "    java.lang.Integer, $value_enum_type$> $name$ValueConverter =\n"
        "        com.google.protobuf.Internal.MapAdapter.newEnumConverter(\n"
        "            $value_enum_type$.internalGetValueMap(),\n"
        "            $unrecognized_value$);\n");
    printer->Print(
        variables_,
        "private static final java.util.Map<$boxed_key_type$, "
        "$value_enum_type$>\n"
        "internalGetAdapted$capitalized_name$Map(\n"
        "    java.util.Map<$boxed_key_type$, $boxed_value_type$> map) {\n"
        "  return new com.google.protobuf.Internal.MapAdapter<\n"
        "      $boxed_key_type$, $value_enum_type$, java.lang.Integer>(\n"
        "          map, $name$ValueConverter);\n"
        "}\n");
  }
  GenerateMapGetters(printer);
}

void ImmutableMapFieldGenerator::
GenerateBuilderMembers(io::Printer* printer) const {
  printer->Print(
      variables_,
      "private com.google.protobuf.MapField<\n"
      "    $type_parameters$> $name$_;\n"
      "private com.google.protobuf.MapField<$type_parameters$>\n"
      "internalGet$capitalized_name$() {\n"
      "  if ($name$_ == null) {\n"
      "    return com.google.protobuf.MapField.emptyMapField(\n"
      "        $map_field_parameter$);\n"
      "  }\n"
      "  return $name$_;\n"
      "}\n"
      "private com.google.protobuf.MapField<$type_parameters$>\n"
      "internalGetMutable$capitalized_name$() {\n"
      "  $on_changed$;\n"
      "  if ($name$_ == null) {\n"
      "    $name$_ = com.google.protobuf.MapField.newMapField(\n"
      "        $map_field_parameter$);\n"
      "  }\n"
      "  if (!$name$_.isMutable()) {\n"
      "    $name$_ = $name$_.copy();\n"
      "  }\n"
      "  return $name$_;\n"
      "}\n");
  GenerateMapGetters(printer);
  printer->Print(
      variables_,
      "$deprecation$\n"
      "public Builder ${$clear$capitalized_name$$}$() {\n"
      "  internalGetMutable$capitalized_name$().getMutableMap()\n"
      "      .clear();\n"
      "  return this;\n"
      "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(
      variables_,
      "$deprecation$\n"
      "public Builder ${$remove$capitalized_name$$}$(\n"
      "    $key_type$ key) {\n"
      "  $key_null_check$\n"
      "  internalGetMutable$capitalized_name$().getMutableMap()\n"
      "      .remove(key);\n"
      "  return this;\n"
      "}\n");
  printer->Annotate("{", "}", descriptor_);
  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
    printer->Print(
        variables_,
        "/**\n"
        " * Use alternate mutation accessors instead.\n"
        " */\n"
        "@java.lang.Deprecated\n"
        "public java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
        "${$getMutable$capitalized_name$$}$() {\n"
        "  return internalGetAdapted$capitalized_name$Map(\n"
        "       internalGetMutable$capitalized_name$().getMutableMap());\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(variables_,
                   "$deprecation$public Builder ${$put$capitalized_name$$}$(\n"
                   "    $key_type$ key,\n"
                   "    $value_enum_type$ value) {\n"
                   "  $key_null_check$\n"
                   "  $value_null_check$\n"
                   "  internalGetMutable$capitalized_name$().getMutableMap()\n"
                   "      .put(key, $name$ValueConverter.doBackward(value));\n"
                   "  return this;\n"
                   "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$public Builder ${$putAll$capitalized_name$$}$(\n"
        "    java.util.Map<$boxed_key_type$, $value_enum_type$> values) {\n"
        "  internalGetAdapted$capitalized_name$Map(\n"
        "      internalGetMutable$capitalized_name$().getMutableMap())\n"
        "          .putAll(values);\n"
        "  return this;\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    if (SupportUnknownEnumValue(descriptor_->file())) {
      printer->Print(
          variables_,
          "/**\n"
          " * Use alternate mutation accessors instead.\n"
          " */\n"
          "@java.lang.Deprecated\n"
          "public java.util.Map<$boxed_key_type$, $boxed_value_type$>\n"
          "${$getMutable$capitalized_name$Value$}$() {\n"
          "  return internalGetMutable$capitalized_name$().getMutableMap();\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$public Builder ${$put$capitalized_name$Value$}$(\n"
          "    $key_type$ key,\n"
          "    $value_type$ value) {\n"
          "  $key_null_check$\n"
          "  internalGetMutable$capitalized_name$().getMutableMap()\n"
          "      .put(key, value);\n"
          "  return this;\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$public Builder ${$putAll$capitalized_name$Value$}$(\n"
          "    java.util.Map<$boxed_key_type$, $boxed_value_type$> values) {\n"
          "  internalGetMutable$capitalized_name$().getMutableMap()\n"
          "      .putAll(values);\n"
          "  return this;\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
    }
  } else {
    printer->Print(
        variables_,
        "/**\n"
        " * Use alternate mutation accessors instead.\n"
        " */\n"
        "@java.lang.Deprecated\n"
        "public java.util.Map<$type_parameters$>\n"
        "${$getMutable$capitalized_name$$}$() {\n"
        "  return internalGetMutable$capitalized_name$().getMutableMap();\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$"
        "public Builder ${$put$capitalized_name$$}$(\n"
        "    $key_type$ key,\n"
        "    $value_type$ value) {\n"
        "  $key_null_check$\n"
        "  $value_null_check$\n"
        "  internalGetMutable$capitalized_name$().getMutableMap()\n"
        "      .put(key, value);\n"
        "  return this;\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public Builder ${$putAll$capitalized_name$$}$(\n"
        "    java.util.Map<$type_parameters$> values) {\n"
        "  internalGetMutable$capitalized_name$().getMutableMap()\n"
        "      .putAll(values);\n"
        "  return this;\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
  }
}

void ImmutableMapFieldGenerator::
GenerateMapGetters(io::Printer* printer) const {
  printer->Print(
      variables_,
      "$deprecation$\n"
      "public int ${$get$capitalized_name$Count$}$() {\n"
      "  return internalGet$capitalized_name$().getMap().size();\n"
      "}\n");
  printer->Annotate("{", "}", descriptor_);
  WriteFieldDocComment(printer, descriptor_);
  printer->Print(
      variables_,
      "$deprecation$\n"
      "public boolean ${$contains$capitalized_name$$}$(\n"
      "    $key_type$ key) {\n"
      "  $key_null_check$\n"
      "  return internalGet$capitalized_name$().getMap().containsKey(key);\n"
      "}\n");
  printer->Annotate("{", "}", descriptor_);
  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
    printer->Print(
        variables_,
        "/**\n"
        " * Use {@link #get$capitalized_name$Map()} instead.\n"
        " */\n"
        "@java.lang.Deprecated\n"
        "public java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
        "${$get$capitalized_name$$}$() {\n"
        "  return get$capitalized_name$Map();\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
        "${$get$capitalized_name$Map$}$() {\n"
        "  return internalGetAdapted$capitalized_name$Map(\n"
        "      internalGet$capitalized_name$().getMap());"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public $value_enum_type$ ${$get$capitalized_name$OrDefault$}$(\n"
        "    $key_type$ key,\n"
        "    $value_enum_type$ defaultValue) {\n"
        "  $key_null_check$\n"
        "  java.util.Map<$boxed_key_type$, $boxed_value_type$> map =\n"
        "      internalGet$capitalized_name$().getMap();\n"
        "  return map.containsKey(key)\n"
        "         ? $name$ValueConverter.doForward(map.get(key))\n"
        "         : defaultValue;\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public $value_enum_type$ ${$get$capitalized_name$OrThrow$}$(\n"
        "    $key_type$ key) {\n"
        "  $key_null_check$\n"
        "  java.util.Map<$boxed_key_type$, $boxed_value_type$> map =\n"
        "      internalGet$capitalized_name$().getMap();\n"
        "  if (!map.containsKey(key)) {\n"
        "    throw new java.lang.IllegalArgumentException();\n"
        "  }\n"
        "  return $name$ValueConverter.doForward(map.get(key));\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    if (SupportUnknownEnumValue(descriptor_->file())) {
      printer->Print(
          variables_,
          "/**\n"
          " * Use {@link #get$capitalized_name$ValueMap()} instead.\n"
          " */\n"
          "@java.lang.Deprecated\n"
          "public java.util.Map<$boxed_key_type$, $boxed_value_type$>\n"
          "${$get$capitalized_name$Value$}$() {\n"
          "  return get$capitalized_name$ValueMap();\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$\n"
          "public java.util.Map<$boxed_key_type$, $boxed_value_type$>\n"
          "${$get$capitalized_name$ValueMap$}$() {\n"
          "  return internalGet$capitalized_name$().getMap();\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$\n"
          "public $value_type$ ${$get$capitalized_name$ValueOrDefault$}$(\n"
          "    $key_type$ key,\n"
          "    $value_type$ defaultValue) {\n"
          "  $key_null_check$\n"
          "  java.util.Map<$boxed_key_type$, $boxed_value_type$> map =\n"
          "      internalGet$capitalized_name$().getMap();\n"
          "  return map.containsKey(key) ? map.get(key) : defaultValue;\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
      WriteFieldDocComment(printer, descriptor_);
      printer->Print(
          variables_,
          "$deprecation$\n"
          "public $value_type$ ${$get$capitalized_name$ValueOrThrow$}$(\n"
          "    $key_type$ key) {\n"
          "  $key_null_check$\n"
          "  java.util.Map<$boxed_key_type$, $boxed_value_type$> map =\n"
          "      internalGet$capitalized_name$().getMap();\n"
          "  if (!map.containsKey(key)) {\n"
          "    throw new java.lang.IllegalArgumentException();\n"
          "  }\n"
          "  return map.get(key);\n"
          "}\n");
      printer->Annotate("{", "}", descriptor_);
    }
  } else {
    printer->Print(
        variables_,
        "/**\n"
        " * Use {@link #get$capitalized_name$Map()} instead.\n"
        " */\n"
        "@java.lang.Deprecated\n"
        "public java.util.Map<$type_parameters$> "
        "${$get$capitalized_name$$}$() {\n"
        "  return get$capitalized_name$Map();\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public java.util.Map<$type_parameters$> "
        "${$get$capitalized_name$Map$}$() {\n"
        "  return internalGet$capitalized_name$().getMap();\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public $value_type$ ${$get$capitalized_name$OrDefault$}$(\n"
        "    $key_type$ key,\n"
        "    $value_type$ defaultValue) {\n"
        "  $key_null_check$\n"
        "  java.util.Map<$type_parameters$> map =\n"
        "      internalGet$capitalized_name$().getMap();\n"
        "  return map.containsKey(key) ? map.get(key) : defaultValue;\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
    WriteFieldDocComment(printer, descriptor_);
    printer->Print(
        variables_,
        "$deprecation$\n"
        "public $value_type$ ${$get$capitalized_name$OrThrow$}$(\n"
        "    $key_type$ key) {\n"
        "  $key_null_check$\n"
        "  java.util.Map<$type_parameters$> map =\n"
        "      internalGet$capitalized_name$().getMap();\n"
        "  if (!map.containsKey(key)) {\n"
        "    throw new java.lang.IllegalArgumentException();\n"
        "  }\n"
        "  return map.get(key);\n"
        "}\n");
    printer->Annotate("{", "}", descriptor_);
  }
}

void ImmutableMapFieldGenerator::
GenerateFieldBuilderInitializationCode(io::Printer* printer)  const {
  // Nothing to initialize.
}

void ImmutableMapFieldGenerator::
GenerateInitializationCode(io::Printer* printer) const {
  // Nothing to initialize.
}

void ImmutableMapFieldGenerator::
GenerateBuilderClearCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "internalGetMutable$capitalized_name$().clear();\n");
}

void ImmutableMapFieldGenerator::
GenerateMergingCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "internalGetMutable$capitalized_name$().mergeFrom(\n"
      "    other.internalGet$capitalized_name$());\n");
}

void ImmutableMapFieldGenerator::
GenerateBuildingCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "result.$name$_ = internalGet$capitalized_name$();\n"
      "result.$name$_.makeImmutable();\n");
}

void ImmutableMapFieldGenerator::
GenerateParsingCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "if (!$get_mutable_bit_parser$) {\n"
      "  $name$_ = com.google.protobuf.MapField.newMapField(\n"
      "      $map_field_parameter$);\n"
      "  $set_mutable_bit_parser$;\n"
      "}\n");
  if (!SupportUnknownEnumValue(descriptor_->file()) &&
      GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
    printer->Print(
        variables_,
        "com.google.protobuf.ByteString bytes = input.readBytes();\n"
        "com.google.protobuf.MapEntry<$type_parameters$>\n"
        "$name$__ = $default_entry$.getParserForType().parseFrom(bytes);\n");
    printer->Print(
        variables_,
        "if ($value_enum_type$.forNumber($name$__.getValue()) == null) {\n"
        "  unknownFields.mergeLengthDelimitedField($number$, bytes);\n"
        "} else {\n"
        "  $name$_.getMutableMap().put(\n"
        "      $name$__.getKey(), $name$__.getValue());\n"
        "}\n");
  } else {
    printer->Print(
        variables_,
        "com.google.protobuf.MapEntry<$type_parameters$>\n"
        "$name$__ = input.readMessage(\n"
        "    $default_entry$.getParserForType(), extensionRegistry);\n"
        "$name$_.getMutableMap().put(\n"
        "    $name$__.getKey(), $name$__.getValue());\n");
  }
}

void ImmutableMapFieldGenerator::
GenerateParsingDoneCode(io::Printer* printer) const {
  // Nothing to do here.
}

void ImmutableMapFieldGenerator::
GenerateSerializationCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "com.google.protobuf.GeneratedMessage$ver$\n"
      "  .serialize$short_key_type$MapTo(\n"
      "    output,\n"
      "    internalGet$capitalized_name$(),\n"
      "    $default_entry$,\n"
      "    $number$);\n");
}

void ImmutableMapFieldGenerator::
GenerateSerializedSizeCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "for (java.util.Map.Entry<$type_parameters$> entry\n"
      "     : internalGet$capitalized_name$().getMap().entrySet()) {\n"
      "  com.google.protobuf.MapEntry<$type_parameters$>\n"
      "  $name$__ = $default_entry$.newBuilderForType()\n"
      "      .setKey(entry.getKey())\n"
      "      .setValue(entry.getValue())\n"
      "      .build();\n"
      "  size += com.google.protobuf.CodedOutputStream\n"
      "      .computeMessageSize($number$, $name$__);\n"
      "}\n");
}

void ImmutableMapFieldGenerator::
GenerateEqualsCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "result = result && internalGet$capitalized_name$().equals(\n"
      "    other.internalGet$capitalized_name$());\n");
}

void ImmutableMapFieldGenerator::
GenerateHashCode(io::Printer* printer) const {
  printer->Print(
      variables_,
      "if (!internalGet$capitalized_name$().getMap().isEmpty()) {\n"
      "  hash = (37 * hash) + $constant_name$;\n"
      "  hash = (53 * hash) + internalGet$capitalized_name$().hashCode();\n"
      "}\n");
}

string ImmutableMapFieldGenerator::GetBoxedType() const {
  return name_resolver_->GetImmutableClassName(descriptor_->message_type());
}

}  // namespace java
}  // namespace compiler
}  // namespace protobuf
}  // namespace google


text:
// 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.

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_NAME_RESOLVER_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_NAME_RESOLVER_H__

#include <map>
#include <string>

#include <google/protobuf/stubs/common.h>

namespace google {
namespace protobuf {
class Descriptor;
class EnumDescriptor;
class FieldDescriptor;
class FileDescriptor;
class ServiceDescriptor;

namespace compiler {
namespace java {

// Used to get the Java class related names for a given descriptor. It caches
// the results to avoid redundant calculation across multiple name queries.
// Thread-safety note: This class is *not* thread-safe.
class ClassNameResolver {
 public:
  ClassNameResolver();
  ~ClassNameResolver();

  // Gets the unqualified outer class name for the file.
  string GetFileClassName(const FileDescriptor* file, bool immutable);
  // Gets the unqualified immutable outer class name of a file.
  string GetFileImmutableClassName(const FileDescriptor* file);
  // Gets the unqualified default immutable outer class name of a file
  // (converted from the proto file's name).
  string GetFileDefaultImmutableClassName(const FileDescriptor* file);

  // Check whether there is any type defined in the proto file that has
  // the given class name.
  bool HasConflictingClassName(const FileDescriptor* file,
                               const string& classname);

  // Gets the name of the outer class that holds descriptor information.
  // Descriptors are shared between immutable messages and mutable messages.
  // Since both of them are generated optionally, the descriptors need to be
  // put in another common place.
  string GetDescriptorClassName(const FileDescriptor* file);

  // Gets the fully-qualified class name corresponding to the given descriptor.
  string GetClassName(const Descriptor* descriptor, bool immutable);
  string GetClassName(const EnumDescriptor* descriptor, bool immutable);
  string GetClassName(const ServiceDescriptor* descriptor, bool immutable);
  string GetClassName(const FileDescriptor* descriptor, bool immutable);

  template<class DescriptorType>
  string GetImmutableClassName(const DescriptorType* descriptor) {
    return GetClassName(descriptor, true);
  }
  template<class DescriptorType>
  string GetMutableClassName(const DescriptorType* descriptor) {
    return GetClassName(descriptor, false);
  }

  // Gets the fully qualified name of an extension identifier.
  string GetExtensionIdentifierName(const FieldDescriptor* descriptor,
                                    bool immutable);

  // Gets the fully qualified name for generated classes in Java convention.
  // Nested classes will be separated using '$' instead of '.'
  // For example:
  //   com.package.OuterClass$OuterMessage$InnerMessage
  string GetJavaImmutableClassName(const Descriptor* descriptor);
  string GetJavaImmutableClassName(const EnumDescriptor* descriptor);
 private:
  // Get the full name of a Java class by prepending the Java package name
  // or outer class name.
  string GetClassFullName(const string& name_without_package,
                          const FileDescriptor* file,
                          bool immutable,
                          bool multiple_files);
  // Get the Java Class style full name of a message.
  string GetJavaClassFullName(
      const string& name_without_package,
      const FileDescriptor* file,
      bool immutable);
  // Caches the result to provide better performance.
  std::map<const FileDescriptor*, string> file_immutable_outer_class_names_;

  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ClassNameResolver);
};

}  // namespace java
}  // namespace compiler
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_NAME_RESOLVER_H__


text:
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Author: kenton@google.com (Kenton Varda)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_DOC_COMMENT_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_DOC_COMMENT_H__

#include <google/protobuf/descriptor.h>

namespace google {
namespace protobuf {
  namespace io {
    class Printer;             // printer.h
  }
}

namespace protobuf {
namespace compiler {
namespace java {

void WriteMessageDocComment(io::Printer* printer, const Descriptor* message);
void WriteFieldDocComment(io::Printer* printer, const FieldDescriptor* field);
void WriteEnumDocComment(io::Printer* printer, const EnumDescriptor* enum_);
void WriteEnumValueDocComment(io::Printer* printer,
                              const EnumValueDescriptor* value);
void WriteServiceDocComment(io::Printer* printer,
                            const ServiceDescriptor* service);
void WriteMethodDocComment(io::Printer* printer,
                           const MethodDescriptor* method);

// Exposed for testing only.
LIBPROTOC_EXPORT string EscapeJavadoc(const string& input);

}  // namespace java
}  // namespace compiler
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_DOC_COMMENT_H__


text:
// 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.

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__

#include <map>
#include <string>

#include <google/protobuf/stubs/common.h>
#include <google/protobuf/compiler/java/java_extension.h>

namespace google {
namespace protobuf {
namespace compiler {
namespace java {

// Generates code for a lite extension, which may be within the scope of some
// message or may be at file scope.  This is much simpler than FieldGenerator
// since extensions are just simple identifiers with interesting types.
class ImmutableExtensionLiteGenerator : public ExtensionGenerator {
 public:
  explicit ImmutableExtensionLiteGenerator(const FieldDescriptor* descriptor,
                                           Context* context);
  virtual ~ImmutableExtensionLiteGenerator();

  virtual void Generate(io::Printer* printer);

  // Returns an estimate of the number of bytes the printed code will compile to
  virtual int GenerateNonNestedInitializationCode(io::Printer* printer);

  // Returns an estimate of the number of bytes the printed code will compile to
  virtual int GenerateRegistrationCode(io::Printer* printer);

 private:
  const FieldDescriptor* descriptor_;
  Context* context_;
  ClassNameResolver* name_resolver_;
  string scope_;

  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableExtensionLiteGenerator);
};

}  // namespace java
}  // namespace compiler
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__