/www/silex/vendor/Symfony/Component/ClassLoader/ClassCollectionLoader.php

<?php
namespace Symfony\Component\ClassLoader;
class ClassCollectionLoader
{
    static private $loaded;
    static public function load($classes, $cacheDir, $name, $autoReload, $adaptive = false, $extension = '.php')
    {
                if (isset(self::$loaded[$name])) {
            return;
        }
        self::$loaded[$name] = true;
        if ($adaptive) {
                        $classes = array_diff($classes, get_declared_classes(), get_declared_interfaces());
                        $name = $name.'-'.substr(md5(implode('|', $classes)), 0, 5);
        }
        $cache = $cacheDir.'/'.$name.$extension;
                $reload = false;
        if ($autoReload) {
            $metadata = $cacheDir.'/'.$name.$extension.'.meta';
            if (!is_file($metadata) || !is_file($cache)) {
                $reload = true;
            } else {
                $time = filemtime($cache);
                $meta = unserialize(file_get_contents($metadata));
                if ($meta[1] != $classes) {
                    $reload = true;
                } else {
                    foreach ($meta[0] as $resource) {
                        if (!is_file($resource) || filemtime($resource) > $time) {
                            $reload = true;
                            break;
                        }
                    }
                }
            }
        }
        if (!$reload && is_file($cache)) {
            require_once $cache;
            return;
        }
        $files = array();
        $content = '';
        foreach ($classes as $class) {
            if (!class_exists($class) && !interface_exists($class) && (!function_exists('trait_exists') || !trait_exists($class))) {
                throw new \InvalidArgumentException(sprintf('Unable to load class "%s"', $class));
            }
            $r = new \ReflectionClass($class);
            $files[] = $r->getFileName();
            $c = preg_replace(array('/^\s*<\?php/', '/\?>\s*$/'), '', file_get_contents($r->getFileName()));
                        if (!$r->inNamespace()) {
                $c = "\nnamespace\n{\n".self::stripComments($c)."\n}\n";
            } else {
                $c = self::fixNamespaceDeclarations('<?php '.$c);
                $c = preg_replace('/^\s*<\?php/', '', $c);
            }
            $content .= $c;
        }
                if (!is_dir(dirname($cache))) {
            mkdir(dirname($cache), 0777, true);
        }
        self::writeCacheFile($cache, '<?php '.$content);
        if ($autoReload) {
                        self::writeCacheFile($metadata, serialize(array($files, $classes)));
        }
    }
    static public function fixNamespaceDeclarations($source)
    {
        if (!function_exists('token_get_all')) {
            return $source;
        }
        $output = '';
        $inNamespace = false;
        $tokens = token_get_all($source);
        for ($i = 0, $max = count($tokens); $i < $max; $i++) {
            $token = $tokens[$i];
            if (is_string($token)) {
                $output .= $token;
            } elseif (in_array($token[0], array(T_COMMENT, T_DOC_COMMENT))) {
                                continue;
            } elseif (T_NAMESPACE === $token[0]) {
                if ($inNamespace) {
                    $output .= "}\n";
                }
                $output .= $token[1];
                                while (($t = $tokens[++$i]) && is_array($t) && in_array($t[0], array(T_WHITESPACE, T_NS_SEPARATOR, T_STRING))) {
                    $output .= $t[1];
                }
                if (is_string($t) && '{' === $t) {
                    $inNamespace = false;
                    --$i;
                } else {
                    $output .= "\n{";
                    $inNamespace = true;
                }
            } else {
                $output .= $token[1];
            }
        }
        if ($inNamespace) {
            $output .= "}\n";
        }
        return $output;
    }
    static private function writeCacheFile($file, $content)
    {
        $tmpFile = tempnam(dirname($file), basename($file));
        if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $file)) {
            chmod($file, 0644);
            return;
        }
        throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $file));
    }
    static private function stripComments($source)
    {
        if (!function_exists('token_get_all')) {
            return $source;
        }
        $output = '';
        foreach (token_get_all($source) as $token) {
            if (is_string($token)) {
                $output .= $token;
            } elseif (!in_array($token[0], array(T_COMMENT, T_DOC_COMMENT))) {
                $output .= $token[1];
            }
        }
                $output = preg_replace(array('/\s+$/Sm', '/\n+/S'), "\n", $output);
        return $output;
    }
}