#!+sb-doc
"Set SYMBOL's value cell to NEW-VALUE."
(declare (type symbol symbol))
- (about-to-modify-symbol-value symbol "set SYMBOL-VALUE of ~S" new-value)
+ (about-to-modify-symbol-value symbol 'set new-value)
(%set-symbol-value symbol new-value))
(defun %set-symbol-value (symbol new-value)
(%set-symbol-value symbol new-value))
+(defun symbol-global-value (symbol)
+ #!+sb-doc
+ "Return the SYMBOL's current global value. Identical to SYMBOL-VALUE,
+in single-threaded builds: in multithreaded builds bound values are
+distinct from the global value. Can also be SETF."
+ (declare (optimize (safety 1)))
+ (symbol-global-value symbol))
+
+(defun set-symbol-global-value (symbol new-value)
+ (about-to-modify-symbol-value symbol 'set new-value)
+ (sb!kernel:%set-symbol-global-value symbol new-value))
+
(declaim (inline %makunbound))
(defun %makunbound (symbol)
(%set-symbol-value symbol (%primitive sb!c:make-other-immediate-type
#!+sb-doc
"Make SYMBOL unbound, removing any value it may currently have."
(with-single-package-locked-error (:symbol symbol "unbinding the symbol ~A")
- (about-to-modify-symbol-value symbol "make ~S unbound")
+ (when (and (info :variable :always-bound symbol))
+ (error "Can't make ~A variable unbound: ~S" 'always-bound symbol))
+ (about-to-modify-symbol-value symbol 'makunbound)
(%makunbound symbol)
symbol))
\f
;;;; GENSYM and friends
+(defun %make-symbol-name (prefix counter)
+ (with-output-to-string (s)
+ (write-string prefix s)
+ (%output-integer-in-base counter 10 s)))
+
(defvar *gensym-counter* 0
#!+sb-doc
"counter for generating unique GENSYM symbols")
(let ((new (etypecase old
(index (1+ old))
(unsigned-byte (1+ old)))))
- (declare (optimize (speed 3) (safety 0)(inhibit-warnings 3)))
+ (declare (optimize (speed 3) (safety 0) (inhibit-warnings 3)))
(setq *gensym-counter* new)))
(multiple-value-bind (prefix int)
(etypecase thing
(fixnum (values "G" thing))
(string (values (coerce thing 'simple-string) old)))
(declare (simple-string prefix))
- (make-symbol
- (concatenate 'simple-string prefix
- (the simple-string
- (quick-integer-to-string int)))))))
+ (make-symbol (%make-symbol-name prefix int)))))
(defvar *gentemp-counter* 0)
(declaim (type unsigned-byte *gentemp-counter*))
#!+sb-doc
"Creates a new symbol interned in package PACKAGE with the given PREFIX."
(declare (type string prefix))
- (loop
- (let ((*print-base* 10)
- (*print-radix* nil)
- (*print-pretty* nil)
- (new-pname (format nil "~A~D" prefix (incf *gentemp-counter*))))
- (multiple-value-bind (symbol existsp) (find-symbol new-pname package)
- (declare (ignore symbol))
- (unless existsp (return (values (intern new-pname package))))))))
+ (loop for name = (%make-symbol-name prefix (incf *gentemp-counter*))
+ while (nth-value 1 (find-symbol name package))
+ finally (return (values (intern name package)))))