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1 change: 1 addition & 0 deletions protoc-gen-gogofast/main.go
Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ func main() {
vanity.ForEachFile(files, vanity.TurnOnMarshalerAll)
vanity.ForEachFile(files, vanity.TurnOnSizerAll)
vanity.ForEachFile(files, vanity.TurnOnUnmarshalerAll)
vanity.ForEachFieldInFiles(files, vanity.SetBsonTagFieldOption)

resp := command.Generate(req)
command.Write(resp)
Expand Down
13 changes: 13 additions & 0 deletions vanity/field.go
Original file line number Diff line number Diff line change
Expand Up @@ -81,3 +81,16 @@ func TurnOffNullableForNativeTypesWithoutDefaultsOnly(field *descriptor.FieldDes
}
SetBoolFieldOption(gogoproto.E_Nullable, false)(field)
}

func SetBsonTagFieldOption(field *descriptor.FieldDescriptorProto) {
if field.Options == nil {
field.Options = &descriptor.FieldOptions{}
}
value := "bson:\"" + *field.Name + ",omitempty\""
if v, err := proto.GetExtension(field.Options, gogoproto.E_Moretags); err == nil {
value = v.(string) + " " + value
}
if err := proto.SetExtension(field.Options, gogoproto.E_Moretags, &value); err != nil {
panic(err)
}
}