// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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// 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.
//
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#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();

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

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

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

 private:
  const FieldDescriptor* descriptor_;
  ClassNameResolver* name_resolver_;
  std::string scope_;

  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableExtensionLiteGenerator);
};

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

#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__
