Function toUnsignedNumberE

number.go:278–347

(i any, parseFn func(string) (T, error))

}

func toUnsignedNumberE[T Number](i any, parseFn func(string) (T, error)) (T, error) {
	n, valid, ok := toUnsignedNumber[T](i)
	if ok {
		return n, nil
	}

	i, _ = indirect(i)

	if !valid {
		return 0, errNegativeNotAllowed
	}

	switch s := i.(type) {
	case string:
		if s == "" {
			return 0, nil
		}

		v, err := parseFn(s)
		if err != nil {
			return 0, fmt.Errorf(errorMsgWith, i, i, n, err)
		}

		return v, nil
	case json.Number:
		if s == "" {
			return 0, nil
		}

		v, err := parseFn(string(s))
		if err != nil {
			return 0, fmt.Errorf(errorMsgWith, i, i, n, err)
		}

		return v, nil
	case float64EProvider:
		if _, ok := any(n).(float64); !ok {
			return 0, fmt.Errorf(errorMsg, i, i, n)
		}

		v, err := s.Float64()
		if err != nil {
			return 0, fmt.Errorf(errorMsg, i, i, n)
		}

		if v < 0 {
			return 0, errNegativeNotAllowed
		}

		return T(v), nil
	case float64Provider:
		if _, ok := any(n).(float64); !ok {
			return 0, fmt.Errorf(errorMsg, i, i, n)
		}

		v := s.Float64()

		if v < 0 {