Function typeNilKind

rlp/typecache.go:215–232

typeNilKind gives the RLP value kind for nil pointers to 'typ'.

(typ reflect.Type, tags rlpstruct.Tags)

// typeNilKind gives the RLP value kind for nil pointers to 'typ'.
func typeNilKind(typ reflect.Type, tags rlpstruct.Tags) Kind {
	styp := rtypeToStructType(typ, nil)

	var nk rlpstruct.NilKind
	if tags.NilOK {
		nk = tags.NilKind
	} else {
		nk = styp.DefaultNilValue()
	}
	switch nk {
	case rlpstruct.NilKindString:
		return String
	case rlpstruct.NilKindList:
		return List
	default:
		panic("invalid nil kind value")
	}
}

func isUint(k reflect.Kind) bool {
	return k >= reflect.Uint && k <= reflect.Uintptr