func flatten()

in klogr/klogr.go [118:145]

• 28 lines of code
• 6 McCabe index (conditional complexity)

func flatten(kvList ...interface{}) string {
	keys := make([]string, 0, len(kvList))
	vals := make(map[string]interface{}, len(kvList))
	for i := 0; i < len(kvList); i += 2 {
		k, ok := kvList[i].(string)
		if !ok {
			panic(fmt.Sprintf("key is not a string: %s", pretty(kvList[i])))
		}
		var v interface{}
		if i+1 < len(kvList) {
			v = kvList[i+1]
		}
		keys = append(keys, k)
		vals[k] = v
	}
	sort.Strings(keys)
	buf := bytes.Buffer{}
	for i, k := range keys {
		v := vals[k]
		if i > 0 {
			buf.WriteRune(' ')
		}
		buf.WriteString(pretty(k))
		buf.WriteString("=")
		buf.WriteString(pretty(v))
	}
	return buf.String()
}