renamed DibiLazyStorage to DibiHashMap

dibi/libs/DibiHashMap.php

@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * This file is part of the "dibi" - smart database abstraction layer.
+ *
+ * Copyright (c) 2005, 2010 David Grudl (http://davidgrudl.com)
+ *
+ * This source file is subject to the "dibi license", and/or
+ * GPL license. For more information please see http://dibiphp.com
+ * @package    dibi
+ */
+
+
+
+/**#@+
+ * Lazy cached storage.
+ *
+ * @author     David Grudl
+ * @internal
+ */
+abstract class DibiHashMapBase
+{
+	private $callback;
+
+
+	public function __construct($callback)
+	{
+		$this->setCallback($callback);
+	}
+
+
+
+	public function setCallback($callback)
+	{
+		if (!is_callable($callback)) {
+			$able = is_callable($callback, TRUE, $textual);
+			throw new InvalidArgumentException("Handler '$textual' is not " . ($able ? 'callable.' : 'valid PHP callback.'));
+		}
+		$this->callback = $callback;
+	}
+
+
+
+	public function getCallback()
+	{
+		return $this->callback;
+	}
+
+}
+
+
+
+final class DibiHashMap extends DibiHashMapBase
+{
+
+	public function __set($nm, $val)
+	{
+		if ($nm == '') {
+			$nm = "\xFF";
+		}
+		$this->$nm = $val;
+	}
+
+
+
+	public function __get($nm)
+	{
+		if ($nm == '') {
+			$nm = "\xFF";
+			return isset($this->$nm) ? $this->$nm : $this->$nm = call_user_func($this->getCallback(), '');
+		} else {
+			return $this->$nm = call_user_func($this->getCallback(), $nm);
+		}
+	}
+
+}
+/**#@-*/