const google.golang.org/protobuf/reflect/protoreflect.Proto3

9 uses

	google.golang.org/protobuf/reflect/protoreflect (current package)
		proto.go#L157: 	Proto3   Syntax = 3
		proto.go#L164: 	case Proto2, Proto3, Editions:
		proto.go#L176: 	case Proto3:
		proto.go#L190: 	case Proto3:

	google.golang.org/protobuf/internal/encoding/tag
		tag.go#L186: 	if fd.Syntax() == protoreflect.Proto3 && !fd.IsExtension() {

	google.golang.org/protobuf/internal/filedesc
		desc.go#L418: 	return od.L0.ParentFile.L1.Syntax == protoreflect.Proto3 && len(od.L1.Fields.List) == 1 && od.L1.Fields.List[0].HasOptionalKeyword()
		desc.go#L562: 	SurrogateProto3      = &File{L1: FileL1{Syntax: protoreflect.Proto3}, L2: &FileL2{}}
		desc_init.go#L118: 					fd.L1.Syntax = protoreflect.Proto3

	google.golang.org/protobuf/internal/strs
		strings.go#L25: 	return fd.Syntax() == protoreflect.Proto3