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// 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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// Author: kenton@google.com (Kenton Varda)
//
// Front-end for protoc code generator plugins written in C++.
//
// To implement a protoc plugin in C++, simply write an implementation of
// CodeGenerator, then create a main() function like:
//   int main(int argc, char* argv[]) {
//     MyCodeGenerator generator;
//     return google::protobuf::compiler::PluginMain(argc, argv, &generator);
//   }
// You must link your plugin against libprotobuf and libprotoc.
//
// To get protoc to use the plugin, do one of the following:
// * Place the plugin binary somewhere in the PATH and give it the name
//   "protoc-gen-NAME" (replacing "NAME" with the name of your plugin).  If you
//   then invoke protoc with the parameter --NAME_out=OUT_DIR (again, replace
//   "NAME" with your plugin's name), protoc will invoke your plugin to generate
//   the output, which will be placed in OUT_DIR.
// * Place the plugin binary anywhere, with any name, and pass the --plugin
//   parameter to protoc to direct it to your plugin like so:
//     protoc --plugin=protoc-gen-NAME=path/to/mybinary --NAME_out=OUT_DIR
//   On Windows, make sure to include the .exe suffix:
//     protoc --plugin=protoc-gen-NAME=path/to/mybinary.exe --NAME_out=OUT_DIR

#ifndef GOOGLE_PROTOBUF_COMPILER_PLUGIN_H__
#define GOOGLE_PROTOBUF_COMPILER_PLUGIN_H__

#include <google/protobuf/stubs/common.h>
namespace google {
namespace protobuf {
namespace compiler {

class CodeGenerator;    // code_generator.h

// Implements main() for a protoc plugin exposing the given code generator.
LIBPROTOC_EXPORT int PluginMain(int argc, char* argv[], const CodeGenerator* generator);

}  // namespace compiler
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_COMPILER_PLUGIN_H__