initial commit; version 22.5.12042

libs/cli/Memoize.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * PHP Command Line Tools
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this package in the file LICENSE.
+ *
+ * @author    James Logsdon <dwarf@girsbrain.org>
+ * @copyright 2010 James Logsdom (http://girsbrain.org)
+ * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
+ */
+
+namespace cli;
+
+abstract class Memoize {
+	protected $_memoCache = array();
+
+	public function __get($name) {
+		if (isset($this->_memoCache[$name])) {
+			return $this->_memoCache[$name];
+		}
+
+		// Hide probable private methods
+		if (0 == strncmp($name, '_', 1)) {
+			return ($this->_memoCache[$name] = null);
+		}
+
+		if (!method_exists($this, $name)) {
+			return ($this->_memoCache[$name] = null);
+		}
+
+		$method = array($this, $name);
+		($this->_memoCache[$name] = call_user_func($method));
+		return $this->_memoCache[$name];
+	}
+
+	protected function _unmemo($name) {
+		if ($name === true) {
+			$this->_memoCache = array();
+		} else {
+			unset($this->_memoCache[$name]);
+		}
+	}
+}