Added support for proto3 field presence (#3752)
diff --git a/cmd/protoc-gen-go-grpc/main.go b/cmd/protoc-gen-go-grpc/main.go
index a8555fa..9165761 100644
--- a/cmd/protoc-gen-go-grpc/main.go
+++ b/cmd/protoc-gen-go-grpc/main.go
@@ -34,6 +34,7 @@
"flag"
"google.golang.org/protobuf/compiler/protogen"
+ "google.golang.org/protobuf/types/pluginpb"
)
var requireUnimplemented *bool
@@ -45,6 +46,7 @@
protogen.Options{
ParamFunc: flags.Set,
}.Run(func(gen *protogen.Plugin) error {
+ gen.SupportedFeatures = uint64(pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL)
for _, f := range gen.Files {
if !f.Generate {
continue
