/**
* Set the current stack
*
* @param mixed $stack Value to be turned into stack for evaluation
* @return \MUtil_Lazy_StackInterface
*/
public static function setStack($stack)
{
if ($stack instanceof \MUtil_Lazy_StackInterface) {
self::$_stack = $stack;
} elseif ($stack instanceof \MUtil_Model_Bridge_TableBridgeAbstract) {
self::$_stack = new \MUtil_Lazy_Stack_BridgeStack($stack);
} elseif ($stack instanceof \MUtil_Lazy_Repeatable) {
self::$_stack = new RepeatableStack($stack);
} elseif (\MUtil_Ra::is($stack)) {
$stack = \MUtil_Ra::to($stack);
self::$_stack = new \MUtil_Lazy_Stack_ArrayStack($stack);
} elseif (is_object($stack)) {
self::$_stack = new \MUtil_Lazy_Stack_ObjectStack($stack);
} else {
throw new \MUtil_Lazy_LazyException("Lazy stack set to invalid scalar type.");
}
return self::$_stack;
}