anchor.diff:    0)
   
   (defmethod expression-precedence ((form op-form))
  -  (gethash (operator form) *op-precedence-hash*))
  +  (op-precedence (operator form)))
   
   (defmethod js-to-strings ((form op-form) start-pos)
     (let* ((precedence (expression-precedence form))
  
positive.code: (defun op-form-p (form)
    (and (listp form)
         (not (js-compiler-macro-form-p form))
         (not (null (gethash (first form) *op-precedence-hash*)))))
  
  (defun klammer (string-list)
    (prepend-to-first string-list "(")
  
negative.code: 	     :join-after " ="))
  
  (defmethod expression-precedence ((setf js-setf))
    (op-precedence '=))
  
  ;;; defvar
  
  