@function __list-reverse($list, $args...) {
  $length: length($list);
  $result-list: ();
  $index: $length;

  @while $index > 0 {
    $result-list: append($result-list, nth($list, $index));
    $index: $index - 1;
  }

  @return $result-list;
}

@function __str-reverse($string, $args...) {
  $string-list: __to-list($string);
  $result: __list-reverse($string-list);

  @return __join($result, "");
}

@function __reverse($value, $args...) {
  @if __is-string($value) {
    @return __str-reverse($value);
  }

  @return __list-reverse($value);
}

/// Reverses a `$list` or `$string`. The first element/character of the list/string
/// becomes the last, and vice versa.
///
/// @access public
/// @group List
/// @param {List|String} $value - The value to reverse.
/// @returns {List|String} Returns reversed `$value`.
/// @example scss
/// $foo: _reverse(1 2 3);
/// // => 3 2 1
///
/// $foo: _reverse('abc');
/// // => 'cba'

@function _reverse($args...) {
  @return call(get-function("__reverse"), $args...);
}

/// Reverses a `$string`. The first character of the string
/// becomes the last, and vice versa.
///
/// @access public
/// @group List
/// @param {String} $string - The string to reverse.
/// @returns {String} Returns reversed `$string`.
/// @example scss
/// $foo: _str-reverse('abc');
/// // => 'cba'

@function _str-reverse($args...) {
  @return call(get-function("__str-reverse"), $args...);
}