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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  */
 11: 
 12: namespace Nette;
 13: 
 14: use Nette;
 15: 
 16: 
 17: 
 18: /**
 19:  * Provides the base class for a generic list (items can be accessed by index).
 20:  *
 21:  * @author     David Grudl
 22:  *
 23:  * @property-read \ArrayIterator $iterator
 24:  */
 25: class ArrayList extends Object implements \ArrayAccess, \Countable, \IteratorAggregate
 26: {
 27:     private $list = array();
 28: 
 29: 
 30: 
 31:     /**
 32:      * Returns an iterator over all items.
 33:      * @return \ArrayIterator
 34:      */
 35:     public function getIterator()
 36:     {
 37:         return new \ArrayIterator($this->list);
 38:     }
 39: 
 40: 
 41: 
 42:     /**
 43:      * Returns items count.
 44:      * @return int
 45:      */
 46:     public function count()
 47:     {
 48:         return count($this->list);
 49:     }
 50: 
 51: 
 52: 
 53:     /**
 54:      * Replaces or appends a item.
 55:      * @param  int
 56:      * @param  mixed
 57:      * @return void
 58:      * @throws OutOfRangeException
 59:      */
 60:     public function offsetSet($index, $value)
 61:     {
 62:         if ($index === NULL) {
 63:             $this->list[] = $value;
 64: 
 65:         } elseif ($index < 0 || $index >= count($this->list)) {
 66:             throw new OutOfRangeException("Offset invalid or out of range");
 67: 
 68:         } else {
 69:             $this->list[(int) $index] = $value;
 70:         }
 71:     }
 72: 
 73: 
 74: 
 75:     /**
 76:      * Returns a item.
 77:      * @param  int
 78:      * @return mixed
 79:      * @throws OutOfRangeException
 80:      */
 81:     public function offsetGet($index)
 82:     {
 83:         if ($index < 0 || $index >= count($this->list)) {
 84:             throw new OutOfRangeException("Offset invalid or out of range");
 85:         }
 86:         return $this->list[(int) $index];
 87:     }
 88: 
 89: 
 90: 
 91:     /**
 92:      * Determines whether a item exists.
 93:      * @param  int
 94:      * @return bool
 95:      */
 96:     public function offsetExists($index)
 97:     {
 98:         return $index >= 0 && $index < count($this->list);
 99:     }
100: 
101: 
102: 
103:     /**
104:      * Removes the element at the specified position in this list.
105:      * @param  int
106:      * @return void
107:      * @throws OutOfRangeException
108:      */
109:     public function offsetUnset($index)
110:     {
111:         if ($index < 0 || $index >= count($this->list)) {
112:             throw new OutOfRangeException("Offset invalid or out of range");
113:         }
114:         array_splice($this->list, (int) $index, 1);
115:     }
116: 
117: }
118: 
Nette Framework 2.0.6 API API documentation generated by ApiGen 2.7.0