grav-labonneadresse.graphics/system/src/Grav/Common/GPM/Common/CachedCollection.php

<?php
namespace Grav\Common\GPM\Common;

use Grav\Common\Iterator;

class CachedCollection extends Iterator {

    protected static $cache;

    public function __construct($items)
    {
        // local cache to speed things up
        if (!isset(self::$cache[get_called_class().__METHOD__])) {
            self::$cache[get_called_class().__METHOD__] = $items;
        }

        foreach (self::$cache[get_called_class().__METHOD__] as $name => $item) {
            $this->append([$name => $item]);
        }
    }
}