-
-(defun swap-wrappers-and-slots (i1 i2)
- (with-pcl-lock ;FIXME is this sufficient?
- (cond ((std-instance-p i1)
- (let ((w1 (std-instance-wrapper i1))
- (s1 (std-instance-slots i1)))
- (setf (std-instance-wrapper i1) (std-instance-wrapper i2))
- (setf (std-instance-slots i1) (std-instance-slots i2))
- (setf (std-instance-wrapper i2) w1)
- (setf (std-instance-slots i2) s1)))
- ((fsc-instance-p i1)
- (let ((w1 (fsc-instance-wrapper i1))
- (s1 (fsc-instance-slots i1)))
- (setf (fsc-instance-wrapper i1) (fsc-instance-wrapper i2))
- (setf (fsc-instance-slots i1) (fsc-instance-slots i2))
- (setf (fsc-instance-wrapper i2) w1)
- (setf (fsc-instance-slots i2) s1)))
- (t
- (error "unrecognized instance type")))))