- `(etypecase ,obj
- (null
- (sb-alien:sap-alien (sb-sys:int-sap 0) (* (sb-alien:unsigned 8))))
- (string
- (let* ((,size (length ,obj))
- (,storage (sb-alien:make-alien (sb-alien:unsigned 8) (1+ ,size))))
- (setq ,storage (sb-alien:cast ,storage (* (sb-alien:unsigned 8))))
- (locally
- (declare (optimize (speed 3) (safety 0)))
- (dotimes (,i ,size)
- (declare (fixnum ,i))
- (setf (sb-alien:deref ,storage ,i) (char-code (char ,obj ,i))))
- (setf (sb-alien:deref ,storage ,size) 0))
- ,storage))))
+ `(let ((,stored-obj ,obj))
+ (etypecase ,stored-obj
+ (null
+ (sb-alien:sap-alien (sb-sys:int-sap 0) (* (sb-alien:unsigned 8))))
+ (string
+ (let* ((,size (length ,stored-obj))
+ (,storage (sb-alien:make-alien (sb-alien:unsigned 8) (1+ ,size))))
+ (setq ,storage (sb-alien:cast ,storage (* (sb-alien:unsigned 8))))
+ (locally
+ (declare (optimize (speed 3) (safety 0)))
+ (dotimes (,i ,size)
+ (declare (fixnum ,i))
+ (setf (sb-alien:deref ,storage ,i)
+ (char-code (char ,stored-obj ,i))))
+ (setf (sb-alien:deref ,storage ,size) 0))
+ ,storage)))))