Add Autoloader

README.md

@@ -15,6 +15,14 @@ This package currently bundles several components:
  * A `NodeDumper` to dump the nodes to a human readable string representation
  * A `PrettyPrinter` to translate the node tree back to PHP
 
+Autoloader
+----------
+
+In order to automatically include required files `PHPParser_Autoloader` can be used:
+
+    require_once 'path/to/phpparser/lib/PHPParser/Autoloader.php';
+    PHPParser_Autoloader::register();
+
 Parser and ParserDebug
 ----------------------
 

lib/PHPParser/Autoloader.php

@@ -0,0 +1,30 @@
+<?php
+
+class PHPParser_Autoloader
+{
+    /**
+    * Registers PHPParser_Autoloader as an SPL autoloader.
+    */
+    static public function register()
+    {
+        ini_set('unserialize_callback_func', 'spl_autoload_call');
+        spl_autoload_register(array(new self, 'autoload'));
+    }
+
+    /**
+    * Handles autoloading of classes.
+    *
+    * @param string $class A class name.
+    */
+    static public function autoload($class)
+    {
+        if (0 !== strpos($class, 'PHPParser')) {
+            return;
+        }
+
+        $file = dirname(dirname(__FILE__)) . '/' . strtr($class, '_', '/') . '.php';
+        if (is_file($file)) {
+            require $file;
+        }
+    }
+}

test/testAgainstDirectory.php

@@ -1,10 +1,9 @@
 <?php
 
-$DIR = '../..';
+$DIR = '../../Symfony';
 
-function __autoload($class) {
-    is_file($file = '../lib/' . strtr($class, '_', '/') . '.php') && require_once $file;
-}
+require_once '../lib/PHPParser/Autoloader.php';
+PHPParser_Autoloader::register();
 
 $parser        = new PHPParser_Parser;
 $prettyPrinter = new PHPParser_PrettyPrinter_Zend;

test/testExpressions.php

@@ -12,9 +12,8 @@ a::$b()
 a::$b[c]()
 EXPRS;
 
-function __autoload($class) {
-    is_file($file = '../lib/' . strtr($class, '_', '/') . '.php') && require_once $file;
-}
+require_once '../lib/PHPParser/Autoloader.php';
+PHPParser_Autoloader::register();
 
 $parser = new PHPParser_Parser;