/**
* @param array|Traversable $array
*
* @throws \InvalidArgumentException
*/
function __construct($array = null)
{
parent::__construct();
if ($array === null) {
$this->array = array();
} else {
if (is_array($array)) {
$this->array = array_values($array);
} else {
if ($array instanceof Traversable) {
$this->array = iterator_to_array($array, false);
} else {
throw new InvalidArgumentException('You must give an array or a Traversable');
}
}
}
}
/**
* @param string|string[] $string
*
* @throws \InvalidArgumentException
*/
function __construct($string = null)
{
parent::__construct();
if (is_array($string)) {
$this->string = implode($string);
} else {
if ($string instanceof Stringer) {
$this->string = $string->string;
} else {
if (is_string($string)) {
$this->string = $string;
} else {
if ($string === null) {
$this->string = '';
} else {
throw new InvalidArgumentException('You must give a string or a char array');
}
}
}
}
}
/**
* @inheritdoc
*/
protected function resolveFunction($function)
{
if ($function === null) {
return function (KeyValuePair $item) {
return $item->getValue();
};
}
return parent::resolveFunction($function);
}