Add and fix C++ runtime docs

1 files changed, 6 insertions, 0 deletions

diff --git a/src/google/protobuf/compiler/js/js_generator.h b/src/google/protobuf/compiler/js/js_generator.h
index 6fd7ca50..056c9897 100755
--- a/src/google/protobuf/compiler/js/js_generator.h
+++ b/src/google/protobuf/compiler/js/js_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 JavaScript code for a given .proto file.
+
 #ifndef GOOGLE_PROTOBUF_COMPILER_JS_GENERATOR_H__
 #define GOOGLE_PROTOBUF_COMPILER_JS_GENERATOR_H__
 
@@ -90,6 +92,10 @@ struct GeneratorOptions {
       string* error);
 };
 
+// CodeGenerator implementation which generates a JavaScript source file and
+// header.  If you create your own protocol compiler binary and you want it to
+// support JavaScript output, you can do so by registering an instance of this
+// CodeGenerator with the CommandLineInterface in your main() function.
 class LIBPROTOC_EXPORT Generator : public CodeGenerator {
  public:
   Generator() {}