1 files changed, 18 insertions, 19 deletions

diff --git a/src/objective-c/examples/Sample/RouteGuideClient/route_guide.proto b/src/objective-c/examples/Sample/RouteGuideClient/route_guide.proto
index 91b0372a07..16dce26a2b 100644
--- a/src/objective-c/examples/Sample/RouteGuideClient/route_guide.proto
+++ b/src/objective-c/examples/Sample/RouteGuideClient/route_guide.proto
@@ -27,12 +27,11 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-syntax = "proto2";
+syntax = "proto3";
 
 package grpc.example.routeguide;
 
-import "google/protobuf/objectivec-descriptor.proto";
-option (google.protobuf.objectivec_file_options).class_prefix = "RGD";
+option objc_class_prefix = "RGD";
 
 // Interface exported by the server.
 service RouteGuide {
@@ -47,19 +46,19 @@ service RouteGuide {
   // streamed rather than returned at once (e.g. in a response message with a
   // repeated field), as the rectangle may cover a large area and contain a
   // huge number of features.
-//  rpc ListFeatures(Rectangle) returns (stream Feature) {}
+  rpc ListFeatures(Rectangle) returns (stream Feature) {}
 
   // A client-to-server streaming RPC.
   //
   // Accepts a stream of Points on a route being traversed, returning a
   // RouteSummary when traversal is completed.
-//  rpc RecordRoute(stream Point) returns (RouteSummary) {}
+  rpc RecordRoute(stream Point) returns (RouteSummary) {}
 
   // A Bidirectional streaming RPC.
   //
   // Accepts a stream of RouteNotes sent while a route is being traversed,
   // while receiving other RouteNotes (e.g. from other users).
-//  rpc RouteChat(stream RouteNote) returns (stream RouteNote) {}
+  rpc RouteChat(stream RouteNote) returns (stream RouteNote) {}
 }
 
 // Points are represented as latitude-longitude pairs in the E7 representation
@@ -67,18 +66,18 @@ service RouteGuide {
 // Latitudes should be in the range +/- 90 degrees and longitude should be in
 // the range +/- 180 degrees (inclusive).
 message Point {
-  optional int32 latitude = 1;
-  optional int32 longitude = 2;
+  int32 latitude = 1;
+  int32 longitude = 2;
 }
 
 // A latitude-longitude rectangle, represented as two diagonally opposite
 // points "lo" and "hi".
 message Rectangle {
   // One corner of the rectangle.
-  optional Point lo = 1;
+  Point lo = 1;
 
   // The other corner of the rectangle.
-  optional Point hi = 2;
+  Point hi = 2;
 }
 
 // A feature names something at a given point.
@@ -86,19 +85,19 @@ message Rectangle {
 // If a feature could not be named, the name is empty.
 message Feature {
   // The name of the feature.
-  optional string name = 1;
+  string name = 1;
 
   // The point where the feature is detected.
-  optional Point location = 2;
+  Point location = 2;
 }
 
 // A RouteNote is a message sent while at a given point.
 message RouteNote {
   // The location from which the message is sent.
-  optional Point location = 1;
+  Point location = 1;
 
   // The message to be sent.
-  optional string message = 2;
+  string message = 2;
 }
 
 // A RouteSummary is received in response to a RecordRoute rpc.
@@ -108,14 +107,14 @@ message RouteNote {
 // the distance between each point.
 message RouteSummary {
   // The number of points received.
-  optional int32 point_count = 1;
+  int32 point_count = 1;
 
   // The number of known features passed while traversing the route.
-  optional int32 feature_count = 2;
+  int32 feature_count = 2;
 
   // The distance covered in metres.
-  optional int32 distance = 3;
+  int32 distance = 3;
 
   // The duration of the traversal in seconds.
-  optional int32 elapsed_time = 4;
-}
\ No newline at end of file
+  int32 elapsed_time = 4;
+}