(t res))))
;;; Delay looking for compiler-layout until the constructor is being
-;;; compiled, since it doesn't exist until after the EVAL-WHEN (COMPILE)
-;;; stuff is compiled.
+;;; compiled, since it doesn't exist until after the EVAL-WHEN
+;;; (COMPILE) stuff is compiled. (Or, in the oddball case when
+;;; DEFSTRUCT is executing in a non-toplevel context, the
+;;; compiler-layout still doesn't exist at compilation time, and we
+;;; delay still further.)
(sb!xc:defmacro %delayed-get-compiler-layout (name)
- `',(compiler-layout-or-lose name))
+ (let ((layout (info :type :compiler-layout name)))
+ (cond (layout
+ ;; ordinary case: When the DEFSTRUCT is at top level,
+ ;; then EVAL-WHEN (COMPILE) stuff will have set up the
+ ;; layout for us to use.
+ (unless (typep (layout-info layout) 'defstruct-description)
+ (error "Class is not a structure class: ~S" name))
+ `,layout)
+ (t
+ ;; KLUDGE: In the case that DEFSTRUCT is not at top-level
+ ;; the layout doesn't exist at compile time. In that case
+ ;; we laboriously look it up at run time. This code will
+ ;; run on every constructor call and will likely be quite
+ ;; slow, so if anyone cares about performance of
+ ;; non-toplevel DEFSTRUCTs, it should be rewritten to be
+ ;; cleverer. -- WHN 2002-10-23
+ (sb!c::compiler-note
+ "implementation limitation: ~
+ Non-toplevel DEFSTRUCT constructors are slow.")
+ (let ((layout (gensym "LAYOUT")))
+ `(let ((,layout (info :type :compiler-layout ',name)))
+ (unless (typep (layout-info ,layout) 'defstruct-description)
+ (error "Class is not a structure class: ~S" ',name))
+ ,layout))))))
;;; Get layout right away.
(sb!xc:defmacro compile-time-find-layout (name)
(if (dd-class-p dd)
(let ((inherits (inherits-for-structure dd)))
`(progn
+ ;; Note we intentionally call %DEFSTRUCT first, and
+ ;; especially before %COMPILER-DEFSTRUCT. %DEFSTRUCT
+ ;; has the tests (and resulting CERROR) for collisions
+ ;; with LAYOUTs which already exist in the runtime. If
+ ;; there are any collisions, we want the user's
+ ;; response to CERROR to control what happens.
+ ;; Especially, if the user responds to the collision
+ ;; with ABORT, we don't want %COMPILER-DEFSTRUCT to
+ ;; modify the definition of the class.
+ (%defstruct ',dd ',inherits)
(eval-when (:compile-toplevel :load-toplevel :execute)
(%compiler-defstruct ',dd ',inherits))
- (%defstruct ',dd ',inherits)
,@(unless expanding-into-code-for-xc-host-p
(append ;; FIXME: We've inherited from CMU CL nonparallel
;; code for creating copiers for typed and untyped
;; structures. This should be fixed.
- ;(copier-definition dd)
+ ;(copier-definition dd)
(constructor-definitions dd)
(class-method-definitions dd)))
',name))
(%compiler-set-up-layout dd inherits)
- (let* ((dd-name (dd-name dd))
- (dtype (dd-declarable-type dd))
- (class (sb!xc:find-class dd-name)))
+ (let* ((dtype (dd-declarable-type dd)))
(let ((copier-name (dd-copier-name dd)))
(when copier-name
(declare (type sb!xc:class class) (type layout old-layout new-layout))
(let ((name (class-proper-name class)))
(restart-case
- (error "redefining class ~S incompatibly with the current definition"
+ (error "~@<attempt to redefine the ~S class ~S incompatibly with the current definition~:@>"
+ 'structure-object
name)
(continue ()
- :report "Invalidate current definition."
- (warn "Previously loaded ~S accessors will no longer work." name)
- (register-layout new-layout))
+ :report (lambda (s)
+ (format s
+ "~@<Use the new definition of ~S, invalidating ~
+ already-loaded code and instances.~@:>"
+ name))
+ (register-layout new-layout))
+ (recklessly-continue ()
+ :report (lambda (s)
+ (format s
+ "~@<Use the new definition of ~S as if it were ~
+ compatible, allowing old accessors to use new ~
+ instances and allowing new accessors to use old ~
+ instances.~@:>"
+ name))
+ ;; classic CMU CL warning: "Any old ~S instances will be in a bad way.
+ ;; I hope you know what you're doing..."
+ (register-layout new-layout
+ :invalidate nil
+ :destruct-layout old-layout))
(clobber-it ()
- :report "Smash current layout, preserving old code."
- (warn "Any old ~S instances will be in a bad way.~@
- I hope you know what you're doing..."
- name)
- (register-layout new-layout :invalidate nil
- :destruct-layout old-layout))))
+ ;; FIXME: deprecated 2002-10-16, and since it's only interactive
+ ;; hackery instead of a supported feature, can probably be deleted
+ ;; in early 2003
+ :report "(deprecated synonym for RECKLESSLY-CONTINUE)"
+ (register-layout new-layout
+ :invalidate nil
+ :destruct-layout old-layout))))
(values))
;;; This is called when we are about to define a structure class. It
(let ((,instance (truly-the ,(dd-name dd)
(%make-instance-with-layout
(%delayed-get-compiler-layout ,(dd-name dd))))))
- (declare (optimize (safety 0))) ; Suppress redundant slot type checks.
,@(when raw-index
`((setf (%instance-ref ,instance ,raw-index)
(make-array ,(dd-raw-length dd)
;;; Given a structure and a BOA constructor spec, call CREATOR with
;;; the appropriate args to make a constructor.
(defun create-boa-constructor (defstruct boa creator)
- (multiple-value-bind (req opt restp rest keyp keys allowp aux)
- (sb!kernel:parse-lambda-list (second boa))
+ (multiple-value-bind (req opt restp rest keyp keys allowp auxp aux)
+ (parse-lambda-list (second boa))
(collect ((arglist)
(vars)
(types))
(dolist (arg opt)
(cond ((consp arg)
(destructuring-bind
- (name &optional (def (nth-value 1 (get-slot name))))
+ ;; FIXME: this shares some logic (though not
+ ;; code) with the &key case below (and it
+ ;; looks confusing) -- factor out the logic
+ ;; if possible. - CSR, 2002-04-19
+ (name
+ &optional
+ (def (nth-value 1 (get-slot name)))
+ (supplied-test nil supplied-test-p))
arg
- (arglist `(,name ,def))
+ (arglist `(,name ,def ,@(if supplied-test-p `(,supplied-test) nil)))
(vars name)
(types (get-slot name))))
(t
(arglist '&key)
(dolist (key keys)
(if (consp key)
- (destructuring-bind (wot &optional (def nil def-p)) key
+ (destructuring-bind (wot
+ &optional
+ (def nil def-p)
+ (supplied-test nil supplied-test-p))
+ key
(let ((name (if (consp wot)
(destructuring-bind (key var) wot
(declare (ignore key))
var)
wot)))
- (multiple-value-bind (type slot-def) (get-slot name)
- (arglist `(,wot ,(if def-p def slot-def)))
+ (multiple-value-bind (type slot-def)
+ (get-slot name)
+ (arglist `(,wot ,(if def-p def slot-def)
+ ,@(if supplied-test-p `(,supplied-test) nil)))
(vars name)
(types type))))
(do-default key))))
(when allowp (arglist '&allow-other-keys))
- (when aux
+ (when auxp
(arglist '&aux)
(dolist (arg aux)
(let* ((arg (if (consp arg) arg (list arg)))
:metaclass-name metaclass-name
:metaclass-constructor metaclass-constructor
:dd-type dd-type))
- (conc-name (concatenate 'string (symbol-name class-name) "-"))
(dd-slots (dd-slots dd))
(dd-length (1+ (length slot-names)))
(object-gensym (gensym "OBJECT"))
(let ((dsd (find (symbol-name slot-name) dd-slots
:key #'dsd-%name
:test #'string=)))
+ ;; KLUDGE: bug 117 bogowarning. Neither
+ ;; DECLAREing the type nor TRULY-THE cut
+ ;; the mustard -- it still gives warnings.
+ (enforce-type dsd defstruct-slot-description)
`(setf (,(dsd-accessor-name dsd) ,object-gensym)
- ,slot-name)))
+ ,slot-name)))
slot-names)
,object-gensym))
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