original_string: public function execute() {
  
          $this->result = (
                  $this->validate_files_layout()
              and $this->validate_version_php()
              and $this->validate_language_pack()
              and $this->validate_target_location()
          );
  
          return $this->result;
      }
code: public function execute() {
  
          $this->result = (
                  $this->validate_files_layout()
              and $this->validate_version_php()
              and $this->validate_language_pack()
              and $this->validate_target_location()
          );
  
          return $this->result;
      }
code_tokens: public function execute ( ) { $ this -> result = ( $ this -> validate_files_layout ( ) and $ this -> validate_version_php ( ) and $ this -> validate_language_pack ( ) and $ this -> validate_target_location ( ) ) ; return $ this -> result ; }
docstring: Execute the validation process against all explicit and implicit requirements
  
  Returns true if the validation passes (all explicit and implicit requirements
  pass) and the plugin can be installed. Returns false if the validation fails
  (some explicit or implicit requirement fails) and the plugin must not be
  installed.
  
  @return bool
docstring_tokens: Execute the validation process against all explicit and implicit requirements