public function testSelfReference()
{
$a = LINQ::Linq(array(1, 2, 3, 4, 5));
$i = $a->Zip($a, function ($i, $j) {
return $i . ":" . $j;
});
$this->AssertIteratorsEqual($i, array("1:1", "2:2", "3:3", "4:4", "5:5"));
}
public function Concat($list)
{
$currentiterfunc = $this->getIteratorFunction;
$newiterfunc = function () use($currentiterfunc, $list) {
$concatarr = array($currentiterfunc(), $list);
$newlist = LINQ::Linq($concatarr);
return $newlist->SelectMany(function ($i) {
return $i;
});
};
return new LinqIterator($newiterfunc);
}
