/**
*
*/
public function testFilterIterator()
{
$toFilter = [0, 1, 2, 3, 4, 5];
$callback = function ($i) {
return $i <= 3;
};
$filtered = to_array(filter($callback, $toFilter));
$this->assertSame([0, 1, 2, 3], $filtered);
$filtered = to_array(filter_false($callback, $toFilter));
$this->assertSame([4, 5], $filtered);
}
function getTimestamp()
{
$lastModifiedTimes = iterator_to_array(itertools\filter(itertools\map(function ($file) {
if (file_exists($file)) {
return @filemtime($file);
}
}, $this->prerequisites)));
if ($lastModifiedTimes) {
return max($lastModifiedTimes);
}
return 0;
}
function getTaskPrerequisites()
{
$app = $this->application;
return itertools\filter(itertools\to_iterator($this->prerequisites), function ($task) use($app) {
return $app->taskDefined($task);
});
}
function remove($predicate)
{
$this->iterator = itertools\filter($this->getIterator(), static::identityFn($predicate, true));
return $this;
}
function testFilterWithoutArgumentRemovesFalsyElements()
{
$a = new ArrayIterator(array(1, 2, null, 3, 0, false));
$this->assertEquals(array(1, 2, 3), iterator_to_array(itertools\filter($a), false));
}