cpp_generator.h

#include <google/protobuf/compiler/cpp/cpp_generator.h>
namespace google::protobuf::compiler::cpp

Generates C++ code for a given .proto file.

Classes in this file

CodeGenerator implementation which generates a C++ source file and header.

class CppGenerator: public CodeGenerator

#include <google/protobuf/compiler/cpp/cpp_generator.h>
namespace google::protobuf::compiler::cpp

CodeGenerator implementation which generates a C++ source file and header.

If you create your own protocol compiler binary and you want it to support C++ output, you can do so by registering an instance of this CodeGenerator with the CommandLineInterface in your main() function.

Members

enum
Runtime
CppGenerator()
~CppGenerator()
void
set_opensource_runtime(bool opensource)
void
set_runtime_include_base(const std::string & base)
If set to a non-empty string, generated code will do: more...

implements CodeGenerator

virtual bool
Generate(const FileDescriptor * file, const std::string & parameter, GeneratorContext * generator_context, std::string * error) const
Generates code for the given proto file, generating one or more files in the given output directory. more...

enum CppGenerator::Runtime {
  kGoogle3,
  kOpensource,
  kOpensourceGoogle3
}

kGoogle3Use the internal google3 runtime.
kOpensourceUse the open-source runtime.
kOpensourceGoogle3

Use the open-source runtime with google3 #include paths.

We make these absolute to avoid ambiguity, so the runtime will be #included like:



void CppGenerator::set_runtime_include_base(
        const std::string & base)

If set to a non-empty string, generated code will do:

/google/protobuf/message.h"

instead of:


This has no effect if opensource_runtime = false.


virtual bool CppGenerator::Generate(
        const FileDescriptor * file,
        const std::string & parameter,
        GeneratorContext * generator_context,
        std::string * error) const

Generates code for the given proto file, generating one or more files in the given output directory.

A parameter to be passed to the generator can be specified on the command line. This is intended to be used to pass generator specific parameters. It is empty if no parameter was given. ParseGeneratorParameter (below), can be used to accept multiple parameters within the single parameter command line flag.

Returns true if successful. Otherwise, sets *error to a description of the problem (e.g. "invalid parameter") and returns false.