Function asString

func.go:248–270

(t iterator, v interface{})

}

func asString(t iterator, v interface{}) string {
	switch v := v.(type) {
	case nil:
		return ""
	case bool:
		if v {
			return "true"
		}
		return "false"
	case float64:
		return strconv.FormatFloat(v, 'g', -1, 64)
	case string:
		return v
	case query:
		node := v.Select(t)
		if node == nil {
			return ""
		}
		return node.Value()
	default:
		panic(fmt.Errorf("unexpected type: %T", v))
	}
}

// booleanFunc is a XPath functions boolean([node-set]).
func booleanFunc(arg1 query) func(query, iterator) interface{} {