original_string: protected function loadCompiledFile($filename)
      {
          if (!file_exists($filename)) {
              return false;
          }
  
          $cache = include $filename;
          if (
              !\is_array($cache)
              || !isset($cache['checksum'], $cache['data'], $cache['@class'])
              || $cache['@class'] !== \get_class($this)
          ) {
              return false;
          }
  
          // Load real file if cache isn't up to date (or is invalid).
          if ($cache['checksum'] !== $this->checksum()) {
              return false;
          }
  
          $this->createObject($cache['data']);
          $this->timestamp = $cache['timestamp'] ?? 0;
  
          $this->finalizeObject();
  
          return true;
      }
code: protected function loadCompiledFile($filename)
      {
          if (!file_exists($filename)) {
              return false;
          }
  
          $cache = include $filename;
          if (
              !\is_array($cache)
              || !isset($cache['checksum'], $cache['data'], $cache['@class'])
              || $cache['@class'] !== \get_class($this)
          ) {
              return false;
          }
  
          // Load real file if cache isn't up to date (or is invalid).
          if ($cache['checksum'] !== $this->checksum()) {
              return false;
          }
  
          $this->createObject($cache['data']);
          $this->timestamp = $cache['timestamp'] ?? 0;
  
          $this->finalizeObject();
  
          return true;
      }
code_tokens: protected function loadCompiledFile ( $ filename ) { if ( ! file_exists ( $ filename ) ) { return false ; } $ cache = include $ filename ; if ( ! \ is_array ( $ cache ) || ! isset ( $ cache [ 'checksum' ] , $ cache [ 'data' ] , $ cache [ '@class' ] ) || $ cache [ '@class' ] !== \ get_class ( $ this ) ) { return false ; } // Load real file if cache isn't up to date (or is invalid). if ( $ cache [ 'checksum' ] !== $ this -> checksum ( ) ) { return false ; } $ this -> createObject ( $ cache [ 'data' ] ) ; $ this -> timestamp = $ cache [ 'timestamp' ] ?? 0 ; $ this -> finalizeObject ( ) ; return true ; }
docstring: Load compiled file.
  
  @param  string  $filename
  @return bool
  @internal
docstring_tokens: Load compiled file .