-(defun cl-hash-lookup (key table)
- (or (eq (car-safe table) 'cl-hash-table-tag) (cl-not-hash-table table))
- (let* ((array (nth 2 table)) (test (car (cdr table))) (str key) sym)
- (if (symbolp array) (setq str nil sym (symbol-value array))
- (while (or (consp str) (and (vectorp str) (> (length str) 0)))
- (setq str (elt str 0)))
- (cond ((stringp str) (if (eq test 'equalp) (setq str (downcase str))))
- ((symbolp str) (setq str (symbol-name str)))
- ((and (numberp str) (> str -8000000) (< str 8000000))
- (or (integerp str) (setq str (truncate str)))
- (setq str (aref ["0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "10"
- "11" "12" "13" "14" "15"] (logand str 15))))
- (t (setq str "*")))
- (setq sym (symbol-value (intern-soft str array))))
- (list (and sym (cond ((or (eq test 'eq)
- (and (eq test 'eql) (not (numberp key))))
- (assq key sym))
- ((memq test '(eql equal)) (assoc key sym))
- (t (assoc* key sym :test test))))
- sym str)))
-
-(defun cl-gethash (key table &optional def)
- "Look up KEY in HASH-TABLE; return corresponding value, or DEFAULT."
- (if (consp table)
- (let ((found (cl-hash-lookup key table)))
- (if (car found) (cdr (car found)) def))
- (gethash key table def)))
-
-(defun cl-puthash (key val table)
- (if (consp table)
- (let ((found (cl-hash-lookup key table)))
- (if (car found) (setcdr (car found) val)
- (if (nth 2 found)
- (progn
- (if (> (nth 3 table) (* (length (nth 2 table)) 3))
- (let ((new-table (make-vector (nth 3 table) 0)))
- (mapatoms (function
- (lambda (sym)
- (set (intern (symbol-name sym) new-table)
- (symbol-value sym))))
- (nth 2 table))
- (setcar (cdr (cdr table)) new-table)))
- (set (intern (nth 2 found) (nth 2 table))
- (cons (cons key val) (nth 1 found))))
- (set (nth 2 table) (cons (cons key val) (nth 1 found))))
- (setcar (cdr (cdr (cdr table))) (1+ (nth 3 table)))))
- (funcall 'puthash key val table)) val)
-
-(defun cl-remhash (key table)
- "Remove KEY from HASH-TABLE."
- (if (consp table)
- (let ((found (cl-hash-lookup key table)))
- (and (car found)
- (let ((del (delq (car found) (nth 1 found))))
- (setcar (cdr (cdr (cdr table))) (1- (nth 3 table)))
- (if (nth 2 found) (set (intern (nth 2 found) (nth 2 table)) del)
- (set (nth 2 table) del)) t)))
- (prog1 (not (eq (gethash key table '--cl--) '--cl--))
- (remhash key table))))
-
-(defun cl-clrhash (table)
- "Clear HASH-TABLE."
- (if (consp table)
- (progn
- (or (cl-hash-table-p table) (cl-not-hash-table table))
- (if (symbolp (nth 2 table)) (set (nth 2 table) nil)
- (setcar (cdr (cdr table)) (make-vector (length (nth 2 table)) 0)))
- (setcar (cdr (cdr (cdr table))) 0))
- (clrhash table))
- nil)
-
-(defun cl-maphash (cl-func cl-table)
- "Call FUNCTION on keys and values from HASH-TABLE."
- (or (cl-hash-table-p cl-table) (cl-not-hash-table cl-table))
- (if (consp cl-table)
- (mapatoms (function (lambda (cl-x)
- (setq cl-x (symbol-value cl-x))
- (while cl-x
- (funcall cl-func (car (car cl-x))
- (cdr (car cl-x)))
- (setq cl-x (cdr cl-x)))))
- (if (symbolp (nth 2 cl-table))
- (vector (nth 2 cl-table)) (nth 2 cl-table)))
- (maphash cl-func cl-table)))
-
-(defun cl-hash-table-count (table)
- "Return the number of entries in HASH-TABLE."
- (or (cl-hash-table-p table) (cl-not-hash-table table))
- (if (consp table)
- (nth 3 table)
- (hash-table-count table)))
-
+(defvar cl-builtin-gethash (symbol-function 'gethash))
+(defvar cl-builtin-remhash (symbol-function 'remhash))
+(defvar cl-builtin-clrhash (symbol-function 'clrhash))
+(defvar cl-builtin-maphash (symbol-function 'maphash))
+
+(defalias 'cl-gethash 'gethash)
+(defalias 'cl-puthash 'puthash)
+(defalias 'cl-remhash 'remhash)
+(defalias 'cl-clrhash 'clrhash)
+(defalias 'cl-maphash 'maphash)
+;; These three actually didn't exist in Emacs-20.
+(defalias 'cl-make-hash-table 'make-hash-table)
+(defalias 'cl-hash-table-p 'hash-table-p)
+(defalias 'cl-hash-table-count 'hash-table-count)