1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // http://code.google.com/p/protobuf/
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
15 // * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 // Author: kenton@google.com (Kenton Varda)
33 // Front-end for protoc code generator plugins written in C++.
35 // To implement a protoc plugin in C++, simply write an implementation of
36 // CodeGenerator, then create a main() function like:
37 // int main(int argc, char* argv[]) {
38 // MyCodeGenerator generator;
39 // return google::protobuf::compiler::PluginMain(argc, argv, &generator);
41 // You must link your plugin against libprotobuf and libprotoc.
43 // To get protoc to use the plugin, do one of the following:
44 // * Place the plugin binary somewhere in the PATH and give it the name
45 // "protoc-gen-NAME" (replacing "NAME" with the name of your plugin). If you
46 // then invoke protoc with the parameter --NAME_out=OUT_DIR (again, replace
47 // "NAME" with your plugin's name), protoc will invoke your plugin to generate
48 // the output, which will be placed in OUT_DIR.
49 // * Place the plugin binary anywhere, with any name, and pass the --plugin
50 // parameter to protoc to direct it to your plugin like so:
51 // protoc --plugin=protoc-gen-NAME=path/to/mybinary --NAME_out=OUT_DIR
52 // On Windows, make sure to include the .exe suffix:
53 // protoc --plugin=protoc-gen-NAME=path/to/mybinary.exe --NAME_out=OUT_DIR
55 #ifndef GOOGLE_PROTOBUF_COMPILER_PLUGIN_H__
56 #define GOOGLE_PROTOBUF_COMPILER_PLUGIN_H__
58 #include <google/protobuf/stubs/common.h>
63 class CodeGenerator; // code_generator.h
65 // Implements main() for a protoc plugin exposing the given code generator.
66 LIBPROTOC_EXPORT int PluginMain(int argc, char* argv[], const CodeGenerator* generator);
68 } // namespace compiler
69 } // namespace protobuf
72 #endif // GOOGLE_PROTOBUF_COMPILER_PLUGIN_H__