const google.golang.org/protobuf/reflect/protoreflect.Proto2

18 uses

	google.golang.org/protobuf/reflect/protoreflect (current package)
		proto.go#L154: 	Proto2 Syntax = 2
		proto.go#L161: 	case Proto2, Proto3:
		proto.go#L171: 	case Proto2:
		proto.go#L183: 	case Proto2:

	google.golang.org/protobuf/reflect/protodesc
		desc.go#L93: 		f.L1.Syntax = protoreflect.Proto2
		desc_validate.go#L110: 		if isMessageSet && (m.Syntax() != protoreflect.Proto2 || m.Fields().Len() > 0 || m.ExtensionRanges().Len() == 0) {
		desc_validate.go#L165: 			if f.IsWeak() && (f.Syntax() != protoreflect.Proto2 || !isOptionalMessage(f) || f.ContainingOneof() != nil) {
		desc_validate.go#L317: 	case fd.Syntax() != protoreflect.Proto2:
		proto.go#L73: 	if syntax := file.Syntax(); syntax != protoreflect.Proto2 {

	google.golang.org/protobuf/encoding/protojson
		encode.go#L186: 		isProto2Scalar := fd.Syntax() == protoreflect.Proto2 && fd.Default().IsValid()

	google.golang.org/protobuf/internal/filedesc
		desc.go#L276: 	return fd.L1.Cardinality != protoreflect.Repeated && (fd.L0.ParentFile.L1.Syntax == protoreflect.Proto2 || fd.L1.Message != nil || fd.L1.ContainingOneof != nil)
		desc.go#L279: 	return (fd.L0.ParentFile.L1.Syntax == protoreflect.Proto2 && fd.L1.Cardinality == protoreflect.Optional && fd.L1.ContainingOneof == nil) || fd.L1.IsProto3Optional
		desc.go#L282: 	if !fd.L1.HasPacked && fd.L0.ParentFile.L1.Syntax != protoreflect.Proto2 && fd.L1.Cardinality == protoreflect.Repeated {
		desc.go#L392: 	return (xd.L0.ParentFile.L1.Syntax == protoreflect.Proto2 && xd.L1.Cardinality == protoreflect.Optional) || xd.lazyInit().IsProto3Optional
		desc.go#L475: 	SurrogateProto2 = &File{L1: FileL1{Syntax: protoreflect.Proto2}, L2: &FileL2{}}
		desc_init.go#L113: 					fd.L1.Syntax = protoreflect.Proto2
		desc_init.go#L166: 		fd.L1.Syntax = protoreflect.Proto2

	github.com/golang/protobuf/jsonpb
		encode.go#L254: 			if fd.Cardinality() != protoreflect.Repeated && (fd.Message() != nil || fd.Syntax() == protoreflect.Proto2) {