<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\ClassLoader;
/**
* ClassMapGenerator
*
* @author Gyula Sallai <salla016@gmail.com>
*/
class ClassMapGenerator
{
/**
* Generate a class map file
*
* @param array|string $dirs Directories or a single path to search in
* @param string $file The name of the class map file
*/
public static function dump($dirs, $file)
{
$dirs = (array) $dirs;
$maps = array();
foreach ($dirs as $dir) {
$maps = array_merge($maps, static::createMap($dir));
}
file_put_contents($file, sprintf('<?php return %s;', var_export($maps, true)));
}
/**
* Iterate over all files in the given directory searching for classes
*
* @param \Iterator|string $dir The directory to search in or an iterator
*
* @return array A class map array
*/
public static function createMap($dir)
{
if (is_string($dir)) {
$dir = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($dir));
}
$map = array();
foreach ($dir as $file) {
if (!$file->isFile()) {
continue;
}
$path = $file->getRealPath();
if (pathinfo($path, PATHINFO_EXTENSION) !== 'php') {
continue;
}
$classes = self::findClasses($path);
foreach ($classes as $class) {
$map[$class] = $path;
}
}
return $map;
}
/**
* Extract the classes in the given file
*
* @param string $path The file to check
*
* @return array The found classes
*/
private static function findClasses($path)
{
$contents = file_get_contents($path);
$tokens = token_get_all($contents);
$T_TRAIT = version_compare(PHP_VERSION, '5.4', '<') ? -1 : T_TRAIT;
$classes = array();
$namespace = '';
for ($i = 0, $max = count($tokens); $i < $max; $i++) {
$token = $tokens[$i];
if (is_string($token)) {
continue;
}
$class = '';
switch ($token[0]) {
case T_NAMESPACE:
$namespace = '';
// If there is a namespace, extract it
while (($t = $tokens[++$i]) && is_array($t)) {
if (in_array($t[0], array(T_STRING, T_NS_SEPARATOR))) {
$namespace .= $t[1];
}
}
$namespace .= '\\';
break;
case T_CLASS:
case T_INTERFACE:
case $T_TRAIT:
// Find the classname
while (($t = $tokens[++$i]) && is_array($t)) {
if (T_STRING === $t[0]) {
$class .= $t[1];
} elseif ($class !== '' && T_WHITESPACE == $t[0]) {
break;
}
}
$classes[] = ltrim($namespace.$class, '\\');
break;
default:
break;
}
}
return $classes;
}
}
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