getClassmap() public method

public getClassmap ( ) : Traversable
return Traversable
 protected function execute(InputInterface $input, OutputInterface $output)
 {
     if (!extension_loaded('Zend OPcache')) {
         throw new \RuntimeException('You have to enable opcache to use this commande');
     }
     if (!(bool) ini_get('opcache.enable_cli')) {
         throw new \RuntimeException('You have to enable the opcache extension');
     }
     $opcacheDir = ini_get('opcache.file_cache');
     if (empty($opcacheDir)) {
         throw new \RuntimeException('You have to define a file_cache to use');
     }
     if (!is_dir($opcacheDir)) {
         throw new \RuntimeException(sprintf('You have to create the "%s" directory', $opcacheDir));
     }
     if ((int) ini_get('opcache.file_update_protection') > 0) {
         $output->writeln('<warning>You should set the `opcache.file_update_protection` to 0 in order to cache recently updated files</warning>');
     }
     $composer = $this->getComposer();
     $reader = new ChainReader(array_merge([new OptimizedReader($composer->getConfig())], array_map(function ($extra) {
         return new DirectoryReader($extra);
     }, $input->getArgument('extra'))));
     $compiler = new PhpServerCompiler();
     foreach ($reader->getClassmap() as $file) {
         try {
             $compiler->compile($file);
             if ($output->getVerbosity() >= OutputInterface::VERBOSITY_VERBOSE) {
                 $output->writeln(sprintf('<info>Compiled file <comment>%s</comment></info>', $file));
             }
         } catch (\Throwable $e) {
             $output->writeln(sprintf('<error>Failed to compile file <comment>%s</comment></error>', $file));
         }
     }
 }