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// 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/extension_lite.h>

#include <google/protobuf/io/printer.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/compiler/java/context.h>
#include <google/protobuf/compiler/java/doc_comment.h>
#include <google/protobuf/compiler/java/helpers.h>
#include <google/protobuf/compiler/java/name_resolver.h>

// Must be last.
#include <google/protobuf/port_def.inc>

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

ImmutableExtensionLiteGenerator::ImmutableExtensionLiteGenerator(
    const FieldDescriptor* descriptor, Context* context)
    : descriptor_(descriptor), name_resolver_(context->GetNameResolver()) {
  if (descriptor_->extension_scope() != NULL) {
    scope_ =
        name_resolver_->GetImmutableClassName(descriptor_->extension_scope());
  } else {
    scope_ = name_resolver_->GetImmutableClassName(descriptor_->file());
  }
}

ImmutableExtensionLiteGenerator::~ImmutableExtensionLiteGenerator() {}

void ImmutableExtensionLiteGenerator::Generate(io::Printer* printer) {
  std::map<TProtoStringType, TProtoStringType> vars;
  const bool kUseImmutableNames = true;
  InitTemplateVars(descriptor_, scope_, kUseImmutableNames, name_resolver_,
                   &vars);
  printer->Print(vars, "public static final int $constant_name$ = $number$;\n");

  WriteFieldDocComment(printer, descriptor_);
  if (descriptor_->is_repeated()) {
    printer->Print(
        vars,
        "public static final\n"
        "  com.google.protobuf.GeneratedMessageLite.GeneratedExtension<\n"
        "    $containing_type$,\n"
        "    $type$> $name$ = com.google.protobuf.GeneratedMessageLite\n"
        "        .newRepeatedGeneratedExtension(\n"
        "      $containing_type$.getDefaultInstance(),\n"
        "      $prototype$,\n"
        "      $enum_map$,\n"
        "      $number$,\n"
        "      com.google.protobuf.WireFormat.FieldType.$type_constant$,\n"
        "      $packed$,\n"
        "      $singular_type$.class);\n");
  } else {
    printer->Print(
        vars,
        "public static final\n"
        "  com.google.protobuf.GeneratedMessageLite.GeneratedExtension<\n"
        "    $containing_type$,\n"
        "    $type$> $name$ = com.google.protobuf.GeneratedMessageLite\n"
        "        .newSingularGeneratedExtension(\n"
        "      $containing_type$.getDefaultInstance(),\n"
        "      $default$,\n"
        "      $prototype$,\n"
        "      $enum_map$,\n"
        "      $number$,\n"
        "      com.google.protobuf.WireFormat.FieldType.$type_constant$,\n"
        "      $singular_type$.class);\n");
  }
  printer->Annotate("name", descriptor_);
}

int ImmutableExtensionLiteGenerator::GenerateNonNestedInitializationCode(
    io::Printer* printer) {
  return 0;
}

int ImmutableExtensionLiteGenerator::GenerateRegistrationCode(
    io::Printer* printer) {
  printer->Print("registry.add($scope$.$name$);\n", "scope", scope_, "name",
                 UnderscoresToCamelCaseCheckReserved(descriptor_));
  return 7;
}

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

#include <google/protobuf/port_undef.inc>