NewDiskStorage::getStepSlice

private function getStepSlice($startStepName)
{
	$startCollect = false;
	$slice = array();
	foreach($this->getSteps() as $name => $data)
	{
		if($name === $startStepName || $startCollect)
		{
			$startCollect = true;
		}
		if(!$startCollect)
		{
			continue;
		}
		$slice[$name] = $data;
	}

	return $slice;
}