1 files changed, 6 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/ruby/ruby_generator.h b/src/google/protobuf/compiler/ruby/ruby_generator.h
index 75555c31..8c1dfa26 100644
--- a/src/google/protobuf/compiler/ruby/ruby_generator.h
+++ b/src/google/protobuf/compiler/ruby/ruby_generator.h
@@ -28,6 +28,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// Generates Ruby code for a given .proto file.
+
 #ifndef GOOGLE_PROTOBUF_COMPILER_RUBY_GENERATOR_H__
 #define GOOGLE_PROTOBUF_COMPILER_RUBY_GENERATOR_H__
 
@@ -40,6 +42,10 @@ namespace protobuf {
 namespace compiler {
 namespace ruby {
 
+// CodeGenerator implementation for generated Ruby protocol buffer classes.
+// If you create your own protocol compiler binary and you want it to support
+// Ruby output, you can do so by registering an instance of this
+// CodeGenerator with the CommandLineInterface in your main() function.
 class LIBPROTOC_EXPORT Generator
     : public google::protobuf::compiler::CodeGenerator {
   virtual bool Generate(