diff options
Diffstat (limited to 'lisp/emacs-lisp')
| -rw-r--r-- | lisp/emacs-lisp/map.el | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/lisp/emacs-lisp/map.el b/lisp/emacs-lisp/map.el index b10be44c218..897743e5b10 100644 --- a/lisp/emacs-lisp/map.el +++ b/lisp/emacs-lisp/map.el @@ -113,11 +113,14 @@ with VALUE. MAP can be a list, hash-table or array." (declare (debug t)) - `(progn - (map--dispatch (m ,map m) - :list (setq ,map (cons (cons ,key ,value) m)) - :hash-table (puthash ,key ,value m) - :array (aset m ,key ,value)))) + (let ((symbol (symbolp map))) + `(progn + (map--dispatch (m ,map m) + :list (if ,symbol + (setq ,map (cons (cons ,key ,value) m)) + (error "Literal lists are not allowed, %s must be a symbol" ',map)) + :hash-table (puthash ,key ,value m) + :array (aset m ,key ,value))))) (defmacro map-delete (map key) "In MAP, delete the key KEY if present and return MAP. @@ -125,11 +128,14 @@ If MAP is an array, store nil at the index KEY. MAP can be a list, hash-table or array." (declare (debug t)) - `(progn - (map--dispatch (m ,map m) - :list (setq ,map (map--delete-alist m ,key)) - :hash-table (remhash ,key m) - :array (map--delete-array m ,key)))) + (let ((symbol (symbolp map))) + `(progn + (map--dispatch (m ,map m) + :list (if ,symbol + (setq ,map (map--delete-alist m ,key)) + (error "Literal lists are not allowed, %s must be a symbol" ',map)) + :hash-table (remhash ,key m) + :array (map--delete-array m ,key))))) (defun map-nested-elt (map keys &optional default) "Traverse MAP using KEYS and return the looked up value or DEFAULT if nil. |