Method Hex

ext/formatting.go:367–395

Hex implements formatStringInterpolator.Hex.

(useUpper bool)

// Hex implements formatStringInterpolator.Hex.
func (c *stringFormatter) Hex(useUpper bool) func(ref.Val, string) (string, error) {
	return func(arg ref.Val, locale string) (string, error) {
		fmtStr := "%x"
		if useUpper {
			fmtStr = "%X"
		}
		switch arg.Type() {
		case types.StringType, types.BytesType:
			if arg.Type() == types.BytesType {
				return fmt.Sprintf(fmtStr, arg.Value().([]byte)), nil
			}
			return fmt.Sprintf(fmtStr, arg.Value().(string)), nil
		case types.IntType:
			argInt, ok := arg.Value().(int64)
			if !ok {
				return "", fmt.Errorf("could not convert \"%s\" to int64", arg.Value())
			}
			return fmt.Sprintf(fmtStr, argInt), nil
		case types.UintType:
			argInt, ok := arg.Value().(uint64)
			if !ok {
				return "", fmt.Errorf("could not convert \"%s\" to uint64", arg.Value())
			}
			return fmt.Sprintf(fmtStr, argInt), nil
		default:
			return "", hexFormatError(runtimeID, arg.Type().TypeName())
		}
	}
}

// Octal implements formatStringInterpolator.Octal.
func (c *stringFormatter) Octal(arg ref.Val, locale string) (string, error) {