/**
* Remove HashTable item
*
* @param PHPExcel_IComparable $pSource Item to remove
* @throws Exception
*/
public function remove(PHPExcel_IComparable $pSource = null)
{
$hash = $pSource->getHashCode();
if (isset($this->_items[$hash])) {
unset($this->_items[$hash]);
$deleteKey = -1;
foreach ($this->_keyMap as $key => $value) {
if ($deleteKey >= 0) {
$this->_keyMap[$key - 1] = $value;
}
if ($value == $hash) {
$deleteKey = $key;
}
}
unset($this->_keyMap[count($this->_keyMap) - 1]);
}
}
