// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// http://code.google.com/p/protobuf/
//
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// modification, are permitted provided that the following conditions are
// met:
//
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// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
// distribution.
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// this software without specific prior written permission.
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Author: xiaofeng@google.com (Feng Xiao)
//
// Generators that generate shared code between immutable API and mutable API.

#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_SHARED_CODE_GENERATOR_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_SHARED_CODE_GENERATOR_H__

#include <memory>
#include <string>
#include <vector>

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

namespace google {
namespace protobuf {
  class FileDescriptor;        // descriptor.h
  namespace compiler {
    class GeneratorContext;    // code_generator.h
    namespace java {
      class ClassNameResolver;       // name_resolver.h
    }
  }
  namespace io {
    class Printer;             // printer.h
  }
}

namespace protobuf {
namespace compiler {
namespace java {

// A generator that generates code that are shared between immutable API
// and mutable API. Currently only descriptors are shared.
class SharedCodeGenerator {
 public:
  explicit SharedCodeGenerator(const FileDescriptor* file);
  ~SharedCodeGenerator();

  void Generate(GeneratorContext* generator_context,
                vector<string>* file_list);
  void GenerateDescriptors(io::Printer* printer);

 private:
  // Returns whether the dependency should be included in the output file.
  // Always returns true for opensource, but used internally at Google to help
  // improve compatibility with version 1 of protocol buffers.
  bool ShouldIncludeDependency(const FileDescriptor* descriptor);

  scoped_ptr<ClassNameResolver> name_resolver_;
  const FileDescriptor* file_;
  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(SharedCodeGenerator);
};


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

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_SHARED_CODE_GENERATOR_H__
