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<?php
namespace ClassPreloader;
/**
* Maintains a list of classes using a sort of doubly-linked list
*/
class ClassList
{
/**
* @var ClassNode The head node of the list
*/
protected $head;
/**
* @var ClassNode The current node of the list
*/
protected $current;
public function __construct()
{
$this->clear();
}
/**
* Clear the contents of the list and reset the head node and current node
*/
public function clear()
{
$this->head = new ClassNode(null);
$this->current = $this->head;
}
/**
* Traverse to the next node in the list
*/
public function next()
{
if (isset($this->current->next)) {
$this->current = $this->current->next;
} else {
$this->current->next = new ClassNode(null, $this->current);
$this->current = $this->current->next;
}
}
/**
* Insert a value at the current position in the list. Any currently set
* value at this position will be pushed back in the list after the new
* value
*
* @param mixed $value Value to insert
*/
public function push($value)
{
if (!$this->current->value) {
$this->current->value = $value;
} else {
$temp = $this->current;
$this->current = new ClassNode($value, $temp->prev);
$this->current->next = $temp;
$temp->prev = $this->current;
if ($temp === $this->head) {
$this->head = $this->current;
} else {
$this->current->prev->next = $this->current;
}
}
}
/**
* Traverse the ClassList and return a list of classes
*
* @return array
*/
public function getClasses()
{
$classes = array();
$current = $this->head;
while ($current && $current->value) {
$classes[] = $current->value;
$current = $current->next;
}
return array_filter($classes);
}
}
|
Revision |
Author |
Commited |
Message |
1464
|
MOliva
|
Tue 13 Oct, 2020 11:16:56 +0000 |
|