function __construct($seq, $callback)
{
parent::__construct($seq);
if (!is_callable($callback)) {
throw new InvalidArgumentException();
}
$this->callback = $callback;
}
function __construct($seq, $init, $callback)
{
parent::__construct($seq);
if (!is_callable($callback)) {
throw new InvalidArgumentException();
}
$this->callback = $callback;
$this->initialValue = $init;
$this->accumulator = $init;
$this->isCached = false;
}
function __construct($first, $fn)
{
list($this->first, $this->fn) = func_get_args();
$this->current_value = $first;
parent::__construct($this);
}
function __construct($seq, $size)
{
parent::__construct($seq);
$this->size = $size;
}
