Function readSliceRefAndType

go/fory/slice.go:76–104

readSliceRefAndType handles reference and type reading for slice serializers. Returns (true, 0) if a reference was resolved (value already set). Returns (false, typeId) if data should be written and typeId was read (if readType=true).

(ctx *ReadContext, refMode RefMode, readType bool, value reflect.Value)

// Returns (true, 0) if a reference was resolved (value already set).
// Returns (false, typeId) if data should be written and typeId was read (if readType=true).
func readSliceRefAndType(ctx *ReadContext, refMode RefMode, readType bool, value reflect.Value) (bool, uint32) {
	buf := ctx.Buffer()
	ctxErr := ctx.Err()
	switch refMode {
	case RefModeTracking:
		refID, refErr := ctx.RefResolver().TryPreserveRefId(buf)
		if refErr != nil {
			ctx.SetError(FromError(refErr))
			return true, 0
		}
		if refID < int32(NotNullValueFlag) {
			obj := ctx.RefResolver().GetReadObject(refID)
			if obj.IsValid() {
				value.Set(obj)
			}
			return true, 0
		}
	case RefModeNullOnly:
		flag := buf.ReadInt8(ctxErr)
		if flag == NullFlag {
			return true, 0
		}
	}
	var typeId uint32
	if readType {
		typeId = uint32(buf.ReadUint8(ctxErr))
	}
	return false, typeId
}

// Helper function to check if a value is null/nil
func isNull(v reflect.Value) bool {