;;;; specification.
(in-package "SB-PCL")
-
-(sb-int:file-comment
- "$Header$")
\f
#|
are used to get enough of the system running that it is possible to
create real generic functions and methods and implement real method
lookup. At that point (done in the file FIXUP) the function
-fix-early-generic-functions is called to convert all the early generic
+!FIX-EARLY-GENERIC-FUNCTIONS is called to convert all the early generic
functions to real generic functions.
The cheap generic functions are built using the same
-funcallable-instance objects real generic-functions are made out of.
+FUNCALLABLE-INSTANCE objects that real generic functions are made out of.
This means that as PCL is being bootstrapped, the cheap generic
function objects which are being created are the same objects which
will later be real generic functions. This is good because:
during booting because those pointers will still point to
the right object after the generic functions are all fixed up.
-This file defines the defmethod macro and the mechanism used to expand
+This file defines the DEFMETHOD macro and the mechanism used to expand
it. This includes the mechanism for processing the body of a method.
DEFMETHOD basically expands into a call to LOAD-DEFMETHOD, which
-basically calls ADD-METHOD to add the method to the generic-function.
+basically calls ADD-METHOD to add the method to the generic function.
These expansions can be loaded either during bootstrapping or when PCL
is fully up and running.
An important effect of this arrangement is it means we can compile
-files with defmethod forms in them in a completely running PCL, but
+files with DEFMETHOD forms in them in a completely running PCL, but
then load those files back in during bootstrapping. This makes
development easier. It also means there is only one set of code for
-processing defmethod. Bootstrapping works by being sure to have
-load-method be careful to call only primitives which work during
+processing DEFMETHOD. Bootstrapping works by being sure to have
+LOAD-METHOD be careful to call only primitives which work during
bootstrapping.
|#
-;;; FIXME: SB-KERNEL::PCL-CHECK-WRAPPER-VALIDITY-HOOK shouldn't be a
-;;; separate function. Instead, we should define a simple placeholder
-;;; version of SB-PCL:CHECK-WRAPPER-VALIDITY where
-;;; SB-KERNEL::PCL-CHECK-WRAPPER-VALIDITY is defined now, then just
-;;; let the later real PCL DEFUN of SB-PCL:CHECK-WRAPPER-VALIDITY
-;;; overwrite it.
-(setf (symbol-function 'sb-kernel::pcl-check-wrapper-validity-hook)
- #'check-wrapper-validity)
-
(declaim (notinline make-a-method
- add-named-method
- ensure-generic-function-using-class
-
- add-method
- remove-method))
-
-(defvar *early-functions*
- '((make-a-method early-make-a-method
- real-make-a-method)
- (add-named-method early-add-named-method
- real-add-named-method)
- ))
-
-;;; For each of the early functions, arrange to have it point to its early
-;;; definition. Do this in a way that makes sure that if we redefine one
-;;; of the early definitions the redefinition will take effect. This makes
-;;; development easier.
-;;;
-;;; The function which generates the redirection closure is pulled out into
-;;; a separate piece of code because of a bug in ExCL which causes this not
-;;; to work if it is inlined.
-;;; FIXME: We no longer need to worry about ExCL now, so we could unscrew this.
-(eval-when (:load-toplevel :execute)
-
-(defun redirect-early-function-internal (real early)
- (setf (gdefinition real)
- (set-function-name
- #'(lambda (&rest args)
- (apply (the function (symbol-function early)) args))
- real)))
-
-(dolist (fns *early-functions*)
+ add-named-method
+ ensure-generic-function-using-class
+ add-method
+ remove-method))
+
+(defvar *!early-functions*
+ '((make-a-method early-make-a-method
+ real-make-a-method)
+ (add-named-method early-add-named-method
+ real-add-named-method)
+ ))
+
+;;; For each of the early functions, arrange to have it point to its
+;;; early definition. Do this in a way that makes sure that if we
+;;; redefine one of the early definitions the redefinition will take
+;;; effect. This makes development easier.
+(dolist (fns *!early-functions*)
(let ((name (car fns))
- (early-name (cadr fns)))
- (redirect-early-function-internal name early-name)))
-
-) ; EVAL-WHEN
-
-;;; *GENERIC-FUNCTION-FIXUPS* is used by fix-early-generic-functions to
-;;; convert the few functions in the bootstrap which are supposed to be
-;;; generic functions but can't be early on.
-(defvar *generic-function-fixups*
+ (early-name (cadr fns)))
+ (setf (gdefinition name)
+ (set-fun-name
+ (lambda (&rest args)
+ (apply (fdefinition early-name) args))
+ name))))
+
+;;; *!GENERIC-FUNCTION-FIXUPS* is used by !FIX-EARLY-GENERIC-FUNCTIONS
+;;; to convert the few functions in the bootstrap which are supposed
+;;; to be generic functions but can't be early on.
+(defvar *!generic-function-fixups*
'((add-method
- ((generic-function method) ;lambda-list
+ ((generic-function method) ;lambda-list
(standard-generic-function method) ;specializers
- real-add-method)) ;method-function
+ real-add-method)) ;method-function
(remove-method
((generic-function method)
(standard-generic-function method)
(standard-generic-function t t)
real-get-method))
(ensure-generic-function-using-class
- ((generic-function function-name
- &key generic-function-class environment
- &allow-other-keys)
+ ((generic-function fun-name
+ &key generic-function-class environment
+ &allow-other-keys)
(generic-function t)
real-ensure-gf-using-class--generic-function)
- ((generic-function function-name
- &key generic-function-class environment
- &allow-other-keys)
+ ((generic-function fun-name
+ &key generic-function-class environment
+ &allow-other-keys)
(null t)
real-ensure-gf-using-class--null))
(make-method-lambda
real-make-method-lambda))
(make-method-initargs-form
((proto-generic-function proto-method
- lambda-expression
- lambda-list environment)
+ lambda-expression
+ lambda-list environment)
(standard-generic-function standard-method t t t)
real-make-method-initargs-form))
(compute-effective-method
(generic-function standard-method-combination t)
standard-compute-effective-method))))
\f
-(defmacro defgeneric (function-name lambda-list &body options)
- (expand-defgeneric function-name lambda-list options))
-
-(defun expand-defgeneric (function-name lambda-list options)
- (when (listp function-name)
- (do-standard-defsetf-1 (sb-int:function-name-block-name function-name)))
+(defmacro defgeneric (fun-name lambda-list &body options)
+ (declare (type list lambda-list))
+ (unless (legal-fun-name-p fun-name)
+ (error 'simple-program-error
+ :format-control "illegal generic function name ~S"
+ :format-arguments (list fun-name)))
+ (check-gf-lambda-list lambda-list)
(let ((initargs ())
- (methods ()))
+ (methods ()))
(flet ((duplicate-option (name)
- (error 'sb-kernel:simple-program-error
- :format-control "The option ~S appears more than once."
- :format-arguments (list name)))
- (expand-method-definition (qab) ; QAB = qualifiers, arglist, body
- (let* ((arglist-pos (position-if #'listp qab))
- (arglist (elt qab arglist-pos))
- (qualifiers (subseq qab 0 arglist-pos))
- (body (nthcdr (1+ arglist-pos) qab)))
- (when (not (equal (cadr (getf initargs :method-combination))
- qualifiers))
- (error "bad method specification in DEFGENERIC ~A~%~
- -- qualifier mismatch for lambda list ~A"
- function-name arglist))
- `(defmethod ,function-name ,@qualifiers ,arglist ,@body))))
+ (error 'simple-program-error
+ :format-control "The option ~S appears more than once."
+ :format-arguments (list name)))
+ (expand-method-definition (qab) ; QAB = qualifiers, arglist, body
+ (let* ((arglist-pos (position-if #'listp qab))
+ (arglist (elt qab arglist-pos))
+ (qualifiers (subseq qab 0 arglist-pos))
+ (body (nthcdr (1+ arglist-pos) qab)))
+ `(push (defmethod ,fun-name ,@qualifiers ,arglist ,@body)
+ (generic-function-initial-methods (fdefinition ',fun-name))))))
(macrolet ((initarg (key) `(getf initargs ,key)))
- (dolist (option options)
- (let ((car-option (car option)))
- (case car-option
- (declare
- (push (cdr option) (initarg :declarations)))
- ((:argument-precedence-order :method-combination)
- (if (initarg car-option)
- (duplicate-option car-option)
- (setf (initarg car-option)
- `',(cdr option))))
- ((:documentation :generic-function-class :method-class)
- (unless (sb-int:proper-list-of-length-p option 2)
- (error "bad list length for ~S" option))
- (if (initarg car-option)
- (duplicate-option car-option)
- (setf (initarg car-option) `',(cadr option))))
- (:method
- (push (cdr option) methods))
- (t
- ;; ANSI requires that unsupported things must get a
- ;; PROGRAM-ERROR.
- (error 'sb-kernel:simple-program-error
- :format-control "unsupported option ~S"
- :format-arguments (list option))))))
-
- (when (initarg :declarations)
- (setf (initarg :declarations)
- `',(initarg :declarations))))
+ (dolist (option options)
+ (let ((car-option (car option)))
+ (case car-option
+ (declare
+ (when (and
+ (consp (cadr option))
+ (member (first (cadr option))
+ ;; FIXME: this list is slightly weird.
+ ;; ANSI (on the DEFGENERIC page) in one
+ ;; place allows only OPTIMIZE; in
+ ;; another place gives this list of
+ ;; disallowed declaration specifiers.
+ ;; This seems to be the only place where
+ ;; the FUNCTION declaration is
+ ;; mentioned; TYPE seems to be missing.
+ ;; Very strange. -- CSR, 2002-10-21
+ '(declaration ftype function
+ inline notinline special)))
+ (error 'simple-program-error
+ :format-control "The declaration specifier ~S ~
+ is not allowed inside DEFGENERIC."
+ :format-arguments (list (cadr option))))
+ (push (cadr option) (initarg :declarations)))
+ (:method-combination
+ (when (initarg car-option)
+ (duplicate-option car-option))
+ (unless (symbolp (cadr option))
+ (error 'simple-program-error
+ :format-control "METHOD-COMBINATION name not a ~
+ symbol: ~S"
+ :format-arguments (list (cadr option))))
+ (setf (initarg car-option)
+ `',(cdr option)))
+ (:argument-precedence-order
+ (let* ((required (parse-lambda-list lambda-list))
+ (supplied (cdr option)))
+ (unless (= (length required) (length supplied))
+ (error 'simple-program-error
+ :format-control "argument count discrepancy in ~
+ :ARGUMENT-PRECEDENCE-ORDER clause."
+ :format-arguments nil))
+ (when (set-difference required supplied)
+ (error 'simple-program-error
+ :format-control "unequal sets for ~
+ :ARGUMENT-PRECEDENCE-ORDER clause: ~
+ ~S and ~S"
+ :format-arguments (list required supplied)))
+ (setf (initarg car-option)
+ `',(cdr option))))
+ ((:documentation :generic-function-class :method-class)
+ (unless (proper-list-of-length-p option 2)
+ (error "bad list length for ~S" option))
+ (if (initarg car-option)
+ (duplicate-option car-option)
+ (setf (initarg car-option) `',(cadr option))))
+ (:method
+ (push (cdr option) methods))
+ (t
+ ;; ANSI requires that unsupported things must get a
+ ;; PROGRAM-ERROR.
+ (error 'simple-program-error
+ :format-control "unsupported option ~S"
+ :format-arguments (list option))))))
+
+ (when (initarg :declarations)
+ (setf (initarg :declarations)
+ `',(initarg :declarations))))
`(progn
- (eval-when (:compile-toplevel :load-toplevel :execute)
- (compile-or-load-defgeneric ',function-name))
- ,(make-top-level-form
- `(defgeneric ,function-name)
- *defgeneric-times*
- `(load-defgeneric ',function-name ',lambda-list ,@initargs))
- ,@(mapcar #'expand-method-definition methods)
- `,(function ,function-name)))))
-
-(defun compile-or-load-defgeneric (function-name)
- (sb-kernel:proclaim-as-function-name function-name)
- (sb-kernel:note-name-defined function-name :function)
- (unless (eq (sb-int:info :function :where-from function-name) :declared)
- (setf (sb-int:info :function :where-from function-name) :defined)
- (setf (sb-int:info :function :type function-name)
- (sb-kernel:specifier-type 'function))))
-
-(defun load-defgeneric (function-name lambda-list &rest initargs)
- (when (listp function-name)
- (do-standard-defsetf-1 (cadr function-name)))
- (when (fboundp function-name)
- (sb-kernel::style-warn "redefining ~S in DEFGENERIC" function-name))
+ (eval-when (:compile-toplevel :load-toplevel :execute)
+ (compile-or-load-defgeneric ',fun-name))
+ (load-defgeneric ',fun-name ',lambda-list ,@initargs)
+ ,@(mapcar #'expand-method-definition methods)
+ (fdefinition ',fun-name)))))
+
+(defun compile-or-load-defgeneric (fun-name)
+ (proclaim-as-fun-name fun-name)
+ (note-name-defined fun-name :function)
+ (unless (eq (info :function :where-from fun-name) :declared)
+ (setf (info :function :where-from fun-name) :defined)
+ (setf (info :function :type fun-name)
+ (specifier-type 'function))))
+
+(defun load-defgeneric (fun-name lambda-list &rest initargs)
+ (when (fboundp fun-name)
+ (style-warn "redefining ~S in DEFGENERIC" fun-name)
+ (let ((fun (fdefinition fun-name)))
+ (when (generic-function-p fun)
+ (loop for method in (generic-function-initial-methods fun)
+ do (remove-method fun method))
+ (setf (generic-function-initial-methods fun) '()))))
(apply #'ensure-generic-function
- function-name
- :lambda-list lambda-list
- :definition-source `((defgeneric ,function-name)
- ,*load-truename*)
- initargs))
+ fun-name
+ :lambda-list lambda-list
+ :definition-source `((defgeneric ,fun-name) ,*load-pathname*)
+ initargs))
+
+(define-condition generic-function-lambda-list-error
+ (reference-condition simple-program-error)
+ ()
+ (:default-initargs :references (list '(:ansi-cl :section (3 4 2)))))
+
+(defun check-gf-lambda-list (lambda-list)
+ (flet ((ensure (arg ok)
+ (unless ok
+ (error 'generic-function-lambda-list-error
+ :format-control
+ "~@<invalid ~S ~_in the generic function lambda list ~S~:>"
+ :format-arguments (list arg lambda-list)))))
+ (multiple-value-bind (required optional restp rest keyp keys allowp
+ auxp aux morep more-context more-count)
+ (parse-lambda-list lambda-list)
+ (declare (ignore required)) ; since they're no different in a gf ll
+ (declare (ignore restp rest)) ; since they're no different in a gf ll
+ (declare (ignore allowp)) ; since &ALLOW-OTHER-KEYS is fine either way
+ (declare (ignore aux)) ; since we require AUXP=NIL
+ (declare (ignore more-context more-count)) ; safely ignored unless MOREP
+ ;; no defaults allowed for &OPTIONAL arguments
+ (dolist (i optional)
+ (ensure i (or (symbolp i)
+ (and (consp i) (symbolp (car i)) (null (cdr i))))))
+ ;; no defaults allowed for &KEY arguments
+ (when keyp
+ (dolist (i keys)
+ (ensure i (or (symbolp i)
+ (and (consp i)
+ (or (symbolp (car i))
+ (and (consp (car i))
+ (symbolp (caar i))
+ (symbolp (cadar i))
+ (null (cddar i))))
+ (null (cdr i)))))))
+ ;; no &AUX allowed
+ (when auxp
+ (error "&AUX is not allowed in a generic function lambda list: ~S"
+ lambda-list))
+ ;; Oh, *puhlease*... not specifically as per section 3.4.2 of
+ ;; the ANSI spec, but the CMU CL &MORE extension does not
+ ;; belong here!
+ (aver (not morep)))))
\f
(defmacro defmethod (&rest args &environment env)
- (declare (arglist name
- {method-qualifier}*
- specialized-lambda-list
- &body body))
(multiple-value-bind (name qualifiers lambda-list body)
(parse-defmethod args)
(multiple-value-bind (proto-gf proto-method)
- (prototypes-for-make-method-lambda name)
+ (prototypes-for-make-method-lambda name)
(expand-defmethod name
- proto-gf
- proto-method
- qualifiers
- lambda-list
- body
- env))))
+ proto-gf
+ proto-method
+ qualifiers
+ lambda-list
+ body
+ env))))
(defun prototypes-for-make-method-lambda (name)
(if (not (eq *boot-state* 'complete))
(values nil nil)
(let ((gf? (and (gboundp name)
- (gdefinition name))))
- (if (or (null gf?)
- (not (generic-function-p gf?)))
- (values (class-prototype (find-class 'standard-generic-function))
- (class-prototype (find-class 'standard-method)))
- (values gf?
- (class-prototype (or (generic-function-method-class gf?)
- (find-class 'standard-method))))))))
-
-;;; takes a name which is either a generic function name or a list specifying
-;;; a setf generic function (like: (SETF <generic-function-name>)). Returns
+ (gdefinition name))))
+ (if (or (null gf?)
+ (not (generic-function-p gf?)))
+ (values (class-prototype (find-class 'standard-generic-function))
+ (class-prototype (find-class 'standard-method)))
+ (values gf?
+ (class-prototype (or (generic-function-method-class gf?)
+ (find-class 'standard-method))))))))
+
+;;; Take a name which is either a generic function name or a list specifying
+;;; a SETF generic function (like: (SETF <generic-function-name>)). Return
;;; the prototype instance of the method-class for that generic function.
;;;
-;;; If there is no generic function by that name, this returns the default
-;;; value, the prototype instance of the class STANDARD-METHOD. This default
-;;; value is also returned if the spec names an ordinary function or even a
-;;; macro. In effect, this leaves the signalling of the appropriate error
-;;; until load time.
+;;; If there is no generic function by that name, this returns the
+;;; default value, the prototype instance of the class
+;;; STANDARD-METHOD. This default value is also returned if the spec
+;;; names an ordinary function or even a macro. In effect, this leaves
+;;; the signalling of the appropriate error until load time.
;;;
;;; Note: During bootstrapping, this function is allowed to return NIL.
(defun method-prototype-for-gf (name)
(let ((gf? (and (gboundp name)
- (gdefinition name))))
+ (gdefinition name))))
(cond ((neq *boot-state* 'complete) nil)
- ((or (null gf?)
- (not (generic-function-p gf?))) ; Someone else MIGHT
- ; error at load time.
- (class-prototype (find-class 'standard-method)))
- (t
- (class-prototype (or (generic-function-method-class gf?)
- (find-class 'standard-method)))))))
+ ((or (null gf?)
+ (not (generic-function-p gf?))) ; Someone else MIGHT
+ ; error at load time.
+ (class-prototype (find-class 'standard-method)))
+ (t
+ (class-prototype (or (generic-function-method-class gf?)
+ (find-class 'standard-method)))))))
\f
-(defvar *optimize-asv-funcall-p* nil)
-(defvar *asv-readers*)
-(defvar *asv-writers*)
-(defvar *asv-boundps*)
-
(defun expand-defmethod (name
- proto-gf
- proto-method
- qualifiers
- lambda-list
- body
- env)
- (when (listp name)
- (do-standard-defsetf-1 (cadr name)))
- (let ((*make-instance-function-keys* nil)
- (*optimize-asv-funcall-p* t)
- (*asv-readers* nil) (*asv-writers* nil) (*asv-boundps* nil))
- (declare (special *make-instance-function-keys*))
- (multiple-value-bind (method-lambda unspecialized-lambda-list specializers)
- (add-method-declarations name qualifiers lambda-list body env)
- (multiple-value-bind (method-function-lambda initargs)
- (make-method-lambda proto-gf proto-method method-lambda env)
- (let ((initargs-form (make-method-initargs-form proto-gf
- proto-method
- method-function-lambda
- initargs
- env)))
- `(progn
- ;; Note: We could DECLAIM the type of the generic
- ;; function here, since ANSI specifies that we create it
- ;; if it does not exist. However, I chose not to, because
- ;; I think it's more useful to support a style of
- ;; programming where every generic function has an
- ;; explicit DEFGENERIC and any typos in DEFMETHODs are
- ;; warned about. Otherwise
- ;; (DEFGENERIC FOO-BAR-BLETCH ((X T)))
- ;; (DEFMETHOD FOO-BAR-BLETCH ((X HASH-TABLE)) ..)
- ;; (DEFMETHOD FOO-BRA-BLETCH ((X SIMPLE-VECTOR)) ..)
- ;; (DEFMETHOD FOO-BAR-BLETCH ((X VECTOR)) ..)
- ;; (DEFMETHOD FOO-BAR-BLETCH ((X ARRAY)) ..)
- ;; (DEFMETHOD FOO-BAR-BLETCH ((X LIST)) ..)
- ;; compiles without raising an error and runs without
- ;; raising an error (since SIMPLE-VECTOR cases fall
- ;; through to VECTOR) but still doesn't do what was
- ;; intended. I hate that kind of bug (code which silently
- ;; gives the wrong answer), so we don't do a DECLAIM
- ;; here. -- WHN 20000229
- ,@(when *make-instance-function-keys*
- `((get-make-instance-functions
- ',*make-instance-function-keys*)))
- ,@(when (or *asv-readers* *asv-writers* *asv-boundps*)
- `((initialize-internal-slot-gfs*
- ',*asv-readers* ',*asv-writers* ',*asv-boundps*)))
- ,(make-defmethod-form name qualifiers specializers
- unspecialized-lambda-list
- (if proto-method
- (class-name (class-of proto-method))
- 'standard-method)
- initargs-form
- (getf (getf initargs ':plist)
- ':pv-table-symbol))))))))
+ proto-gf
+ proto-method
+ qualifiers
+ lambda-list
+ body
+ env)
+ (multiple-value-bind (method-lambda unspecialized-lambda-list specializers)
+ (add-method-declarations name qualifiers lambda-list body env)
+ (multiple-value-bind (method-function-lambda initargs)
+ (make-method-lambda proto-gf proto-method method-lambda env)
+ (let ((initargs-form (make-method-initargs-form proto-gf
+ proto-method
+ method-function-lambda
+ initargs
+ env)))
+ `(progn
+ ;; Note: We could DECLAIM the ftype of the generic function
+ ;; here, since ANSI specifies that we create it if it does
+ ;; not exist. However, I chose not to, because I think it's
+ ;; more useful to support a style of programming where every
+ ;; generic function has an explicit DEFGENERIC and any typos
+ ;; in DEFMETHODs are warned about. Otherwise
+ ;;
+ ;; (DEFGENERIC FOO-BAR-BLETCH ((X T)))
+ ;; (DEFMETHOD FOO-BAR-BLETCH ((X HASH-TABLE)) ..)
+ ;; (DEFMETHOD FOO-BRA-BLETCH ((X SIMPLE-VECTOR)) ..)
+ ;; (DEFMETHOD FOO-BAR-BLETCH ((X VECTOR)) ..)
+ ;; (DEFMETHOD FOO-BAR-BLETCH ((X ARRAY)) ..)
+ ;; (DEFMETHOD FOO-BAR-BLETCH ((X LIST)) ..)
+ ;;
+ ;; compiles without raising an error and runs without
+ ;; raising an error (since SIMPLE-VECTOR cases fall through
+ ;; to VECTOR) but still doesn't do what was intended. I hate
+ ;; that kind of bug (code which silently gives the wrong
+ ;; answer), so we don't do a DECLAIM here. -- WHN 20000229
+ ,(make-defmethod-form name qualifiers specializers
+ unspecialized-lambda-list
+ (if proto-method
+ (class-name (class-of proto-method))
+ 'standard-method)
+ initargs-form
+ (getf (getf initargs :plist)
+ :pv-table-symbol)))))))
(defun interned-symbol-p (x)
(and (symbolp x) (symbol-package x)))
(defun make-defmethod-form (name qualifiers specializers
- unspecialized-lambda-list method-class-name
- initargs-form &optional pv-table-symbol)
+ unspecialized-lambda-list method-class-name
+ initargs-form &optional pv-table-symbol)
(let (fn
- fn-lambda)
- (if (and (interned-symbol-p (sb-int:function-name-block-name name))
- (every #'interned-symbol-p qualifiers)
- (every #'(lambda (s)
- (if (consp s)
- (and (eq (car s) 'eql)
- (constantp (cadr s))
- (let ((sv (eval (cadr s))))
- (or (interned-symbol-p sv)
- (integerp sv)
- (and (characterp sv)
- (standard-char-p sv)))))
- (interned-symbol-p s)))
- specializers)
- (consp initargs-form)
- (eq (car initargs-form) 'list*)
- (memq (cadr initargs-form) '(:function :fast-function))
- (consp (setq fn (caddr initargs-form)))
- (eq (car fn) 'function)
- (consp (setq fn-lambda (cadr fn)))
- (eq (car fn-lambda) 'lambda))
- (let* ((specls (mapcar (lambda (specl)
- (if (consp specl)
- `(,(car specl) ,(eval (cadr specl)))
- specl))
- specializers))
- (mname `(,(if (eq (cadr initargs-form) ':function)
- 'method 'fast-method)
- ,name ,@qualifiers ,specls))
- (mname-sym (intern (let ((*print-pretty* nil))
- (format nil "~S" mname)))))
- `(eval-when ,*defmethod-times*
- (defun ,mname-sym ,(cadr fn-lambda)
- ,@(cddr fn-lambda))
- ,(make-defmethod-form-internal
- name qualifiers `',specls
- unspecialized-lambda-list method-class-name
- `(list* ,(cadr initargs-form)
- #',mname-sym
- ,@(cdddr initargs-form))
- pv-table-symbol)))
- (make-top-level-form
- `(defmethod ,name ,@qualifiers ,specializers)
- *defmethod-times*
- (make-defmethod-form-internal
- name qualifiers
- `(list ,@(mapcar #'(lambda (specializer)
- (if (consp specializer)
- ``(,',(car specializer)
- ,,(cadr specializer))
- `',specializer))
- specializers))
- unspecialized-lambda-list method-class-name
- initargs-form
- pv-table-symbol)))))
+ fn-lambda)
+ (if (and (interned-symbol-p (fun-name-block-name name))
+ (every #'interned-symbol-p qualifiers)
+ (every (lambda (s)
+ (if (consp s)
+ (and (eq (car s) 'eql)
+ (constantp (cadr s))
+ (let ((sv (eval (cadr s))))
+ (or (interned-symbol-p sv)
+ (integerp sv)
+ (and (characterp sv)
+ (standard-char-p sv)))))
+ (interned-symbol-p s)))
+ specializers)
+ (consp initargs-form)
+ (eq (car initargs-form) 'list*)
+ (memq (cadr initargs-form) '(:function :fast-function))
+ (consp (setq fn (caddr initargs-form)))
+ (eq (car fn) 'function)
+ (consp (setq fn-lambda (cadr fn)))
+ (eq (car fn-lambda) 'lambda))
+ (let* ((specls (mapcar (lambda (specl)
+ (if (consp specl)
+ `(,(car specl) ,(eval (cadr specl)))
+ specl))
+ specializers))
+ (mname `(,(if (eq (cadr initargs-form) :function)
+ 'slow-method 'fast-method)
+ ,name ,@qualifiers ,specls)))
+ `(progn
+ (defun ,mname ,(cadr fn-lambda)
+ ,@(cddr fn-lambda))
+ ,(make-defmethod-form-internal
+ name qualifiers `',specls
+ unspecialized-lambda-list method-class-name
+ `(list* ,(cadr initargs-form)
+ #',mname
+ ,@(cdddr initargs-form))
+ pv-table-symbol)))
+ (make-defmethod-form-internal
+ name qualifiers
+ `(list ,@(mapcar (lambda (specializer)
+ (if (consp specializer)
+ ``(,',(car specializer)
+ ,,(cadr specializer))
+ `',specializer))
+ specializers))
+ unspecialized-lambda-list
+ method-class-name
+ initargs-form
+ pv-table-symbol))))
(defun make-defmethod-form-internal
(name qualifiers specializers-form unspecialized-lambda-list
,specializers-form
',unspecialized-lambda-list
,initargs-form
- ;; Paper over a bug in KCL by passing the cache-symbol here in addition to
- ;; in the list. FIXME: We should no longer need to do this.
+ ;; Paper over a bug in KCL by passing the cache-symbol here in
+ ;; addition to in the list. FIXME: We should no longer need to do
+ ;; this, since the CLOS code is now SBCL-specific, and doesn't
+ ;; need to be ported to every buggy compiler in existence.
',pv-table-symbol))
(defmacro make-method-function (method-lambda &environment env)
(multiple-value-bind (proto-gf proto-method)
(prototypes-for-make-method-lambda nil)
(multiple-value-bind (method-function-lambda initargs)
- (make-method-lambda proto-gf proto-method method-lambda env)
+ (make-method-lambda proto-gf proto-method method-lambda env)
(make-method-initargs-form proto-gf
- proto-method
- method-function-lambda
- initargs
- env))))
+ proto-method
+ method-function-lambda
+ initargs
+ env))))
(defun add-method-declarations (name qualifiers lambda-list body env)
+ (declare (ignore env))
(multiple-value-bind (parameters unspecialized-lambda-list specializers)
(parse-specialized-lambda-list lambda-list)
- (declare (ignore parameters))
- (multiple-value-bind (documentation declarations real-body)
- (extract-declarations body env)
+ (multiple-value-bind (real-body declarations documentation)
+ (parse-body body)
(values `(lambda ,unspecialized-lambda-list
- ,@(when documentation `(,documentation))
- (declare (method-name ,(list name qualifiers specializers)))
- (declare (method-lambda-list ,@lambda-list))
- ,@declarations
- ,@real-body)
- unspecialized-lambda-list specializers))))
+ ,@(when documentation `(,documentation))
+ ;; (Old PCL code used a somewhat different style of
+ ;; list for %METHOD-NAME values. Our names use
+ ;; ,@QUALIFIERS instead of ,QUALIFIERS so that the
+ ;; method names look more like what you see in a
+ ;; DEFMETHOD form.)
+ ;;
+ ;; FIXME: As of sbcl-0.7.0.6, code elsewhere, at
+ ;; least the code to set up named BLOCKs around the
+ ;; bodies of methods, depends on the function's base
+ ;; name being the first element of the %METHOD-NAME
+ ;; list. It would be good to remove this dependency,
+ ;; perhaps by building the BLOCK here, or by using
+ ;; another declaration (e.g. %BLOCK-NAME), so that
+ ;; our method debug names are free to have any format,
+ ;; e.g. (:METHOD PRINT-OBJECT :AROUND (CLOWN T)).
+ ;;
+ ;; Further, as of sbcl-0.7.9.10, the code to
+ ;; implement NO-NEXT-METHOD is coupled to the form of
+ ;; this declaration; see the definition of
+ ;; CALL-NO-NEXT-METHOD (and the passing of
+ ;; METHOD-NAME-DECLARATION arguments around the
+ ;; various CALL-NEXT-METHOD logic).
+ (declare (%method-name (,name
+ ,@qualifiers
+ ,specializers)))
+ (declare (%method-lambda-list ,@lambda-list))
+ ,@declarations
+ ,@real-body)
+ unspecialized-lambda-list specializers))))
(defun real-make-method-initargs-form (proto-gf proto-method
- method-lambda initargs env)
+ method-lambda initargs env)
(declare (ignore proto-gf proto-method))
- (unless (and (consp method-lambda) (eq (car method-lambda) 'lambda))
- (error "The METHOD-LAMBDA argument to MAKE-METHOD-FUNCTION, ~S,~
- is not a lambda form."
- method-lambda))
+ (unless (and (consp method-lambda)
+ (eq (car method-lambda) 'lambda))
+ (error "The METHOD-LAMBDA argument to MAKE-METHOD-FUNCTION, ~S, ~
+ is not a lambda form."
+ method-lambda))
(make-method-initargs-form-internal method-lambda initargs env))
(unless (fboundp 'make-method-initargs-form)
(setf (gdefinition 'make-method-initargs-form)
- (symbol-function 'real-make-method-initargs-form)))
+ (symbol-function 'real-make-method-initargs-form)))
(defun real-make-method-lambda (proto-gf proto-method method-lambda env)
(declare (ignore proto-gf proto-method))
(make-method-lambda-internal method-lambda env))
+;;; a helper function for creating Python-friendly type declarations
+;;; in DEFMETHOD forms
+(defun parameter-specializer-declaration-in-defmethod (parameter specializer)
+ (cond ((and (consp specializer)
+ (eq (car specializer) 'eql))
+ ;; KLUDGE: ANSI, in its wisdom, says that
+ ;; EQL-SPECIALIZER-FORMs in EQL specializers are evaluated at
+ ;; DEFMETHOD expansion time. Thus, although one might think
+ ;; that in
+ ;; (DEFMETHOD FOO ((X PACKAGE)
+ ;; (Y (EQL 12))
+ ;; ..))
+ ;; the PACKAGE and (EQL 12) forms are both parallel type
+ ;; names, they're not, as is made clear when you do
+ ;; (DEFMETHOD FOO ((X PACKAGE)
+ ;; (Y (EQL 'BAR)))
+ ;; ..)
+ ;; where Y needs to be a symbol named "BAR", not some cons
+ ;; made by (CONS 'QUOTE 'BAR). I.e. when the
+ ;; EQL-SPECIALIZER-FORM is (EQL 'X), it requires an argument
+ ;; to be of type (EQL X). It'd be easy to transform one to
+ ;; the other, but it'd be somewhat messier to do so while
+ ;; ensuring that the EQL-SPECIALIZER-FORM is only EVAL'd
+ ;; once. (The new code wouldn't be messy, but it'd require a
+ ;; big transformation of the old code.) So instead we punt.
+ ;; -- WHN 20000610
+ '(ignorable))
+ ((member specializer
+ ;; KLUDGE: For some low-level implementation
+ ;; classes, perhaps because of some problems related
+ ;; to the incomplete integration of PCL into SBCL's
+ ;; type system, some specializer classes can't be
+ ;; declared as argument types. E.g.
+ ;; (DEFMETHOD FOO ((X SLOT-OBJECT))
+ ;; (DECLARE (TYPE SLOT-OBJECT X))
+ ;; ..)
+ ;; loses when
+ ;; (DEFSTRUCT BAR A B)
+ ;; (FOO (MAKE-BAR))
+ ;; perhaps because of the way that STRUCTURE-OBJECT
+ ;; inherits both from SLOT-OBJECT and from
+ ;; SB-KERNEL:INSTANCE. In an effort to sweep such
+ ;; problems under the rug, we exclude these problem
+ ;; cases by blacklisting them here. -- WHN 2001-01-19
+ '(slot-object))
+ '(ignorable))
+ ((not (eq *boot-state* 'complete))
+ ;; KLUDGE: PCL, in its wisdom, sometimes calls methods with
+ ;; types which don't match their specializers. (Specifically,
+ ;; it calls ENSURE-CLASS-USING-CLASS (T NULL) with a non-NULL
+ ;; second argument.) Hopefully it only does this kind of
+ ;; weirdness when bootstrapping.. -- WHN 20000610
+ '(ignorable))
+ ((var-globally-special-p parameter)
+ ;; KLUDGE: Don't declare types for global special variables
+ ;; -- our rebinding magic for SETQ cases don't work right
+ ;; there.
+ ;;
+ ;; FIXME: It would be better to detect the SETQ earlier and
+ ;; skip declarations for specials only when needed, not
+ ;; always.
+ ;;
+ ;; --NS 2004-10-14
+ '(ignorable))
+ (t
+ ;; Otherwise, we can usually make Python very happy.
+ (let ((kind (info :type :kind specializer)))
+ (ecase kind
+ ((:primitive) `(type ,specializer ,parameter))
+ ((:defined)
+ (let ((class (find-class specializer nil)))
+ ;; CLASS can be null here if the user has erroneously
+ ;; tried to use a defined type as a specializer; it
+ ;; can be a non-BUILT-IN-CLASS if the user defines a
+ ;; type and calls (SETF FIND-CLASS) in a consistent
+ ;; way.
+ (when (and class (typep class 'built-in-class))
+ `(type ,specializer ,parameter))))
+ ((:instance nil)
+ (let ((class (find-class specializer nil)))
+ (cond
+ (class
+ (if (typep class '(or built-in-class structure-class))
+ `(type ,specializer ,parameter)
+ ;; don't declare CLOS classes as parameters;
+ ;; it's too expensive.
+ '(ignorable)))
+ (t
+ ;; we can get here, and still not have a failure
+ ;; case, by doing MOP programming like (PROGN
+ ;; (ENSURE-CLASS 'FOO) (DEFMETHOD BAR ((X FOO))
+ ;; ...)). Best to let the user know we haven't
+ ;; been able to extract enough information:
+ (style-warn
+ "~@<can't find type for presumed class ~S in ~S.~@:>"
+ specializer
+ 'parameter-specializer-declaration-in-defmethod)
+ '(ignorable)))))
+ ((:forthcoming-defclass-type) '(ignorable)))))))
+
(defun make-method-lambda-internal (method-lambda &optional env)
(unless (and (consp method-lambda) (eq (car method-lambda) 'lambda))
- (error "The METHOD-LAMBDA argument to MAKE-METHOD-LAMBDA, ~S,~
- is not a lambda form."
- method-lambda))
- (multiple-value-bind (documentation declarations real-body)
- (extract-declarations (cddr method-lambda) env)
- (let* ((name-decl (get-declaration 'method-name declarations))
- (sll-decl (get-declaration 'method-lambda-list declarations))
- (method-name (when (consp name-decl) (car name-decl)))
- (generic-function-name (when method-name (car method-name)))
- (specialized-lambda-list (or sll-decl (cadr method-lambda))))
+ (error "The METHOD-LAMBDA argument to MAKE-METHOD-LAMBDA, ~S, ~
+ is not a lambda form."
+ method-lambda))
+ (multiple-value-bind (real-body declarations documentation)
+ (parse-body (cddr method-lambda))
+ (let* ((name-decl (get-declaration '%method-name declarations))
+ (sll-decl (get-declaration '%method-lambda-list declarations))
+ (method-name (when (consp name-decl) (car name-decl)))
+ (generic-function-name (when method-name (car method-name)))
+ (specialized-lambda-list (or sll-decl (cadr method-lambda))))
(multiple-value-bind (parameters lambda-list specializers)
- (parse-specialized-lambda-list specialized-lambda-list)
- (let* ((required-parameters
- (mapcar #'(lambda (r s) (declare (ignore s)) r)
- parameters
- specializers))
- (slots (mapcar #'list required-parameters))
- (calls (list nil))
- (parameters-to-reference
- (make-parameter-references specialized-lambda-list
- required-parameters
- declarations
- method-name
- specializers))
- (class-declarations
- `(declare
- ;; FIXME: Are these (DECLARE (SB-PCL::CLASS FOO BAR))
- ;; declarations used for anything any more?
- ,@(remove nil
- (mapcar (lambda (a s) (and (symbolp s)
- (neq s 't)
- `(class ,a ,s)))
- parameters
- specializers))
- ;; These TYPE declarations weren't in the original
- ;; PCL code, but Python likes them a lot. (We're
- ;; telling the compiler about our knowledge of
- ;; specialized argument types so that it can avoid
- ;; run-time type overhead, which can be a big win
- ;; for Python.)
- ,@(mapcar (lambda (a s)
- (cond ((and (consp s)
- (eql (car s) 'eql))
- ;; KLUDGE: ANSI, in its wisdom, says
- ;; that EQL-SPECIALIZER-FORMs in EQL
- ;; specializers are evaluated at
- ;; DEFMETHOD expansion time. Thus,
- ;; although one might think that in
- ;; (DEFMETHOD FOO ((X PACKAGE)
- ;; (Y (EQL 12))
- ;; ..))
- ;; the PACKAGE and (EQL 12) forms are
- ;; both parallel type names, they're
- ;; not, as is made clear when you do
- ;; (DEFMETHOD FOO ((X PACKAGE)
- ;; (Y (EQL 'BAR)))
- ;; ..)
- ;; where Y needs to be a symbol
- ;; named "BAR", not some cons made by
- ;; (CONS 'QUOTE 'BAR). I.e. when
- ;; the EQL-SPECIALIZER-FORM is (EQL 'X),
- ;; it requires an argument to be of
- ;; type (EQL X). It'd be easy to transform
- ;; one to the other, but it'd be somewhat
- ;; messier to do so while ensuring that
- ;; the EQL-SPECIALIZER-FORM is only
- ;; EVAL'd once. (The new code wouldn't
- ;; be messy, but it'd require a big
- ;; transformation of the old code.)
- ;; So instead we punt. -- WHN 20000610
- '(ignorable))
- ((not (eq *boot-state* 'complete))
- ;; KLUDGE: PCL, in its wisdom,
- ;; sometimes calls methods with
- ;; types which don't match their
- ;; specializers. (Specifically, it calls
- ;; ENSURE-CLASS-USING-CLASS (T NULL)
- ;; with a non-NULL second argument.)
- ;; Hopefully it only does this kind
- ;; of weirdness when bootstrapping..
- ;; -- WHN 20000610
- '(ignorable))
- (t
- ;; Otherwise, we can make Python
- ;; very happy.
- `(type ,s ,a))))
- parameters
- specializers)))
- (method-lambda
- ;; Remove the documentation string and insert the
- ;; appropriate class declarations. The documentation
- ;; string is removed to make it easy for us to insert
- ;; new declarations later, they will just go after the
- ;; cadr of the method lambda. The class declarations
- ;; are inserted to communicate the class of the method's
- ;; arguments to the code walk.
- `(lambda ,lambda-list
- ,class-declarations
- ,@declarations
- (declare (ignorable ,@parameters-to-reference))
-
- ;; FIXME: should become FUNCTION-NAME-BLOCK-NAME
- (block ,(if (listp generic-function-name)
- (cadr generic-function-name)
- generic-function-name)
- ,@real-body)))
- (constant-value-p (and (null (cdr real-body))
- (constantp (car real-body))))
- (constant-value (and constant-value-p
- (eval (car real-body))))
- ;; FIXME: This can become a bare AND (no IF), just like
- ;; the expression for CONSTANT-VALUE just above.
- (plist (if (and constant-value-p
- (or (typep constant-value
- '(or number character))
- (and (symbolp constant-value)
- (symbol-package constant-value))))
- (list :constant-value constant-value)
- ()))
- (applyp (dolist (p lambda-list nil)
- (cond ((memq p '(&optional &rest &key))
- (return t))
- ((eq p '&aux)
- (return nil))))))
- (multiple-value-bind
- (walked-lambda call-next-method-p closurep next-method-p-p)
- (walk-method-lambda method-lambda
- required-parameters
- env
- slots
- calls)
- (multiple-value-bind
- (ignore walked-declarations walked-lambda-body)
- (extract-declarations (cddr walked-lambda))
- (declare (ignore ignore))
- (when (or next-method-p-p call-next-method-p)
- (setq plist (list* :needs-next-methods-p 't plist)))
- (when (some #'cdr slots)
- (multiple-value-bind (slot-name-lists call-list)
- (slot-name-lists-from-slots slots calls)
- (let ((pv-table-symbol (make-symbol "pv-table")))
- (setq plist
- `(,@(when slot-name-lists
- `(:slot-name-lists ,slot-name-lists))
- ,@(when call-list
- `(:call-list ,call-list))
- :pv-table-symbol ,pv-table-symbol
- ,@plist))
- (setq walked-lambda-body
- `((pv-binding (,required-parameters
- ,slot-name-lists
- ,pv-table-symbol)
- ,@walked-lambda-body))))))
- (when (and (memq '&key lambda-list)
- (not (memq '&allow-other-keys lambda-list)))
- (let ((aux (memq '&aux lambda-list)))
- (setq lambda-list (nconc (ldiff lambda-list aux)
- (list '&allow-other-keys)
- aux))))
- (values `(lambda (.method-args. .next-methods.)
- (simple-lexical-method-functions
- (,lambda-list .method-args. .next-methods.
- :call-next-method-p
- ,call-next-method-p
- :next-method-p-p ,next-method-p-p
- :closurep ,closurep
- :applyp ,applyp)
- ,@walked-declarations
- ,@walked-lambda-body))
- `(,@(when plist
- `(:plist ,plist))
- ,@(when documentation
- `(:documentation ,documentation)))))))))))
+ (parse-specialized-lambda-list specialized-lambda-list)
+ (let* ((required-parameters
+ (mapcar (lambda (r s) (declare (ignore s)) r)
+ parameters
+ specializers))
+ (slots (mapcar #'list required-parameters))
+ (calls (list nil))
+ (class-declarations
+ `(declare
+ ;; These declarations seem to be used by PCL to pass
+ ;; information to itself; when I tried to delete 'em
+ ;; ca. 0.6.10 it didn't work. I'm not sure how
+ ;; they work, but note the (VAR-DECLARATION '%CLASS ..)
+ ;; expression in CAN-OPTIMIZE-ACCESS1. -- WHN 2000-12-30
+ ,@(remove nil
+ (mapcar (lambda (a s) (and (symbolp s)
+ (neq s t)
+ `(%class ,a ,s)))
+ parameters
+ specializers))
+ ;; These TYPE declarations weren't in the original
+ ;; PCL code, but the Python compiler likes them a
+ ;; lot. (We're telling the compiler about our
+ ;; knowledge of specialized argument types so that
+ ;; it can avoid run-time type dispatch overhead,
+ ;; which can be a huge win for Python.)
+ ;;
+ ;; KLUDGE: when I tried moving these to
+ ;; ADD-METHOD-DECLARATIONS, things broke. No idea
+ ;; why. -- CSR, 2004-06-16
+ ,@(mapcar #'parameter-specializer-declaration-in-defmethod
+ parameters
+ specializers)))
+ (method-lambda
+ ;; Remove the documentation string and insert the
+ ;; appropriate class declarations. The documentation
+ ;; string is removed to make it easy for us to insert
+ ;; new declarations later, they will just go after the
+ ;; CADR of the method lambda. The class declarations
+ ;; are inserted to communicate the class of the method's
+ ;; arguments to the code walk.
+ `(lambda ,lambda-list
+ ;; The default ignorability of method parameters
+ ;; doesn't seem to be specified by ANSI. PCL had
+ ;; them basically ignorable but was a little
+ ;; inconsistent. E.g. even though the two
+ ;; method definitions
+ ;; (DEFMETHOD FOO ((X T) (Y T)) "Z")
+ ;; (DEFMETHOD FOO ((X T) Y) "Z")
+ ;; are otherwise equivalent, PCL treated Y as
+ ;; ignorable in the first definition but not in the
+ ;; second definition. We make all required
+ ;; parameters ignorable as a way of systematizing
+ ;; the old PCL behavior. -- WHN 2000-11-24
+ (declare (ignorable ,@required-parameters))
+ ,class-declarations
+ ,@declarations
+ (block ,(fun-name-block-name generic-function-name)
+ ,@real-body)))
+ (constant-value-p (and (null (cdr real-body))
+ (constantp (car real-body))))
+ (constant-value (and constant-value-p
+ (eval (car real-body))))
+ (plist (and constant-value-p
+ (or (typep constant-value
+ '(or number character))
+ (and (symbolp constant-value)
+ (symbol-package constant-value)))
+ (list :constant-value constant-value)))
+ (applyp (dolist (p lambda-list nil)
+ (cond ((memq p '(&optional &rest &key))
+ (return t))
+ ((eq p '&aux)
+ (return nil))))))
+ (multiple-value-bind
+ (walked-lambda call-next-method-p closurep
+ next-method-p-p setq-p)
+ (walk-method-lambda method-lambda
+ required-parameters
+ env
+ slots
+ calls)
+ (multiple-value-bind (walked-lambda-body
+ walked-declarations
+ walked-documentation)
+ (parse-body (cddr walked-lambda))
+ (declare (ignore walked-documentation))
+ (when (or next-method-p-p call-next-method-p)
+ (setq plist (list* :needs-next-methods-p t plist)))
+ (when (some #'cdr slots)
+ (multiple-value-bind (slot-name-lists call-list)
+ (slot-name-lists-from-slots slots calls)
+ (let ((pv-table-symbol (make-symbol "pv-table")))
+ (setq plist
+ `(,@(when slot-name-lists
+ `(:slot-name-lists ,slot-name-lists))
+ ,@(when call-list
+ `(:call-list ,call-list))
+ :pv-table-symbol ,pv-table-symbol
+ ,@plist))
+ (setq walked-lambda-body
+ `((pv-binding (,required-parameters
+ ,slot-name-lists
+ ,pv-table-symbol)
+ ,@walked-lambda-body))))))
+ (when (and (memq '&key lambda-list)
+ (not (memq '&allow-other-keys lambda-list)))
+ (let ((aux (memq '&aux lambda-list)))
+ (setq lambda-list (nconc (ldiff lambda-list aux)
+ (list '&allow-other-keys)
+ aux))))
+ (values `(lambda (.method-args. .next-methods.)
+ (simple-lexical-method-functions
+ (,lambda-list .method-args. .next-methods.
+ :call-next-method-p
+ ,call-next-method-p
+ :next-method-p-p ,next-method-p-p
+ :setq-p ,setq-p
+ ;; we need to pass this along
+ ;; so that NO-NEXT-METHOD can
+ ;; be given a suitable METHOD
+ ;; argument; we need the
+ ;; QUALIFIERS and SPECIALIZERS
+ ;; inside the declaration to
+ ;; give to FIND-METHOD.
+ :method-name-declaration ,name-decl
+ :closurep ,closurep
+ :applyp ,applyp)
+ ,@walked-declarations
+ ,@walked-lambda-body))
+ `(,@(when plist
+ `(:plist ,plist))
+ ,@(when documentation
+ `(:documentation ,documentation)))))))))))
(unless (fboundp 'make-method-lambda)
(setf (gdefinition 'make-method-lambda)
- (symbol-function 'real-make-method-lambda)))
+ (symbol-function 'real-make-method-lambda)))
(defmacro simple-lexical-method-functions ((lambda-list
- method-args
- next-methods
- &rest lmf-options)
- &body body)
+ method-args
+ next-methods
+ &rest lmf-options)
+ &body body)
`(progn
,method-args ,next-methods
(bind-simple-lexical-method-macros (,method-args ,next-methods)
(bind-lexical-method-functions (,@lmf-options)
- (bind-args (,lambda-list ,method-args)
- ,@body)))))
+ (bind-args (,lambda-list ,method-args)
+ ,@body)))))
(defmacro fast-lexical-method-functions ((lambda-list
- next-method-call
- args
- rest-arg
- &rest lmf-options)
- &body body)
- `(bind-fast-lexical-method-macros (,args ,rest-arg ,next-method-call)
- (bind-lexical-method-functions (,@lmf-options)
- (bind-args (,(nthcdr (length args) lambda-list) ,rest-arg)
- ,@body))))
+ next-method-call
+ args
+ rest-arg
+ &rest lmf-options)
+ &body body)
+ `(bind-fast-lexical-method-macros (,args ,rest-arg ,next-method-call)
+ (bind-lexical-method-functions (,@lmf-options)
+ (bind-args (,(nthcdr (length args) lambda-list) ,rest-arg)
+ ,@body))))
(defmacro bind-simple-lexical-method-macros ((method-args next-methods)
- &body body)
+ &body body)
`(macrolet ((call-next-method-bind (&body body)
- `(let ((.next-method. (car ,',next-methods))
- (,',next-methods (cdr ,',next-methods)))
- .next-method. ,',next-methods
- ,@body))
- (call-next-method-body (cnm-args)
- `(if .next-method.
- (funcall (if (std-instance-p .next-method.)
- (method-function .next-method.)
- .next-method.) ; for early methods
- (or ,cnm-args ,',method-args)
- ,',next-methods)
- (error "no next method")))
- (next-method-p-body ()
- `(not (null .next-method.))))
- ,@body))
-
-(defstruct method-call
+ `(let ((.next-method. (car ,',next-methods))
+ (,',next-methods (cdr ,',next-methods)))
+ .next-method. ,',next-methods
+ ,@body))
+ (call-next-method-body (method-name-declaration cnm-args)
+ `(if .next-method.
+ (funcall (if (std-instance-p .next-method.)
+ (method-function .next-method.)
+ .next-method.) ; for early methods
+ (or ,cnm-args ,',method-args)
+ ,',next-methods)
+ (apply #'call-no-next-method ',method-name-declaration
+ (or ,cnm-args ,',method-args))))
+ (next-method-p-body ()
+ `(not (null .next-method.)))
+ (with-rebound-original-args ((call-next-method-p setq-p)
+ &body body)
+ (declare (ignore call-next-method-p setq-p))
+ `(let () ,@body)))
+ ,@body))
+
+(defun call-no-next-method (method-name-declaration &rest args)
+ (destructuring-bind (name) method-name-declaration
+ (destructuring-bind (name &rest qualifiers-and-specializers) name
+ ;; KLUDGE: inefficient traversal, but hey. This should only
+ ;; happen on the slow error path anyway.
+ (let* ((qualifiers (butlast qualifiers-and-specializers))
+ (specializers (car (last qualifiers-and-specializers)))
+ (method (find-method (gdefinition name) qualifiers specializers)))
+ (apply #'no-next-method
+ (method-generic-function method)
+ method
+ args)))))
+
+(defstruct (method-call (:copier nil))
(function #'identity :type function)
call-method-args)
(defmacro invoke-method-call1 (function args cm-args)
`(let ((.function. ,function)
- (.args. ,args)
- (.cm-args. ,cm-args))
+ (.args. ,args)
+ (.cm-args. ,cm-args))
(if (and .cm-args. (null (cdr .cm-args.)))
- (funcall .function. .args. (car .cm-args.))
- (apply .function. .args. .cm-args.))))
+ (funcall .function. .args. (car .cm-args.))
+ (apply .function. .args. .cm-args.))))
(defmacro invoke-method-call (method-call restp &rest required-args+rest-arg)
`(invoke-method-call1 (method-call-function ,method-call)
- ,(if restp
- `(list* ,@required-args+rest-arg)
- `(list ,@required-args+rest-arg))
- (method-call-call-method-args ,method-call)))
+ ,(if restp
+ `(list* ,@required-args+rest-arg)
+ `(list ,@required-args+rest-arg))
+ (method-call-call-method-args ,method-call)))
-(defstruct fast-method-call
+(defstruct (fast-method-call (:copier nil))
(function #'identity :type function)
pv-cell
next-method-call
(defmacro invoke-fast-method-call (method-call &rest required-args+rest-arg)
`(fmc-funcall (fast-method-call-function ,method-call)
- (fast-method-call-pv-cell ,method-call)
- (fast-method-call-next-method-call ,method-call)
- ,@required-args+rest-arg))
+ (fast-method-call-pv-cell ,method-call)
+ (fast-method-call-next-method-call ,method-call)
+ ,@required-args+rest-arg))
-(defstruct fast-instance-boundp
+(defstruct (fast-instance-boundp (:copier nil))
(index 0 :type fixnum))
#-sb-fluid (declaim (sb-ext:freeze-type fast-instance-boundp))
(eval-when (:compile-toplevel :load-toplevel :execute)
-
-(defvar *allow-emf-call-tracing-p* nil)
-(defvar *enable-emf-call-tracing-p* #-testing nil #+testing t)
-
-) ; EVAL-WHEN
+ (defvar *allow-emf-call-tracing-p* nil)
+ (defvar *enable-emf-call-tracing-p* #-sb-show nil #+sb-show t))
\f
;;;; effective method functions
(defun show-emf-call-trace ()
(when *emf-call-trace*
(let ((j *emf-call-trace-index*)
- (*enable-emf-call-tracing-p* nil))
+ (*enable-emf-call-tracing-p* nil))
(format t "~&(The oldest entries are printed first)~%")
(dotimes-fixnum (i *emf-call-trace-size*)
- (let ((ct (aref *emf-call-trace* j)))
- (when ct (print ct)))
- (incf j)
- (when (= j *emf-call-trace-size*)
- (setq j 0))))))
+ (let ((ct (aref *emf-call-trace* j)))
+ (when ct (print ct)))
+ (incf j)
+ (when (= j *emf-call-trace-size*)
+ (setq j 0))))))
(defun trace-emf-call-internal (emf format args)
(unless *emf-call-trace*
(setq *emf-call-trace* (make-array *emf-call-trace-size*)))
(setf (aref *emf-call-trace* *emf-call-trace-index*)
- (list* emf format args))
+ (list* emf format args))
(incf *emf-call-trace-index*)
(when (= *emf-call-trace-index* *emf-call-trace-size*)
(setq *emf-call-trace-index* 0)))
(invoke-fast-method-call ,emf ,@required-args+rest-arg)))
(defmacro invoke-effective-method-function (emf restp
- &rest required-args+rest-arg)
+ &rest required-args+rest-arg)
(unless (constantp restp)
(error "The RESTP argument is not constant."))
+ ;; FIXME: The RESTP handling here is confusing and maybe slightly
+ ;; broken if RESTP evaluates to a non-self-evaluating form. E.g. if
+ ;; (INVOKE-EFFECTIVE-METHOD-FUNCTION EMF '(ERROR "gotcha") ...)
+ ;; then TRACE-EMF-CALL-CALL-INTERNAL might die on a gotcha error.
(setq restp (eval restp))
`(progn
(trace-emf-call ,emf ,restp (list ,@required-args+rest-arg))
(cond ((typep ,emf 'fast-method-call)
- (invoke-fast-method-call ,emf ,@required-args+rest-arg))
- ,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
- `(((typep ,emf 'fixnum)
- (let* ((.slots. (get-slots-or-nil
- ,(car required-args+rest-arg)))
- (value (when .slots. (%instance-ref .slots. ,emf))))
- (if (eq value ',*slot-unbound*)
- (slot-unbound-internal ,(car required-args+rest-arg)
- ,emf)
- value)))))
- ,@(when (and (null restp) (= 2 (length required-args+rest-arg)))
- `(((typep ,emf 'fixnum)
- (let ((.new-value. ,(car required-args+rest-arg))
- (.slots. (get-slots-or-nil
- ,(car required-args+rest-arg))))
- (when .slots. ; just to avoid compiler warnings
- (setf (%instance-ref .slots. ,emf) .new-value.))))))
- #||
- ,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
- `(((typep ,emf 'fast-instance-boundp)
- (let ((.slots. (get-slots-or-nil
- ,(car required-args+rest-arg))))
- (and .slots.
- (not (eq (%instance-ref
- .slots. (fast-instance-boundp-index ,emf))
- ',*slot-unbound*)))))))
- ||#
- (t
- (etypecase ,emf
- (method-call
- (invoke-method-call ,emf ,restp ,@required-args+rest-arg))
- (function
- ,(if restp
- `(apply (the function ,emf) ,@required-args+rest-arg)
- `(funcall (the function ,emf)
- ,@required-args+rest-arg))))))))
+ (invoke-fast-method-call ,emf ,@required-args+rest-arg))
+ ;; "What," you may wonder, "do these next two clauses do?"
+ ;; In that case, you are not a PCL implementor, for they
+ ;; considered this to be self-documenting.:-| Or CSR, for
+ ;; that matter, since he can also figure it out by looking
+ ;; at it without breaking stride. For the rest of us,
+ ;; though: From what the code is doing with .SLOTS. and
+ ;; whatnot, evidently it's implementing SLOT-VALUEish and
+ ;; GET-SLOT-VALUEish things. Then we can reason backwards
+ ;; and conclude that setting EMF to a FIXNUM is an
+ ;; optimized way to represent these slot access operations.
+ ,@(when (and (null restp) (= 1 (length required-args+rest-arg)))
+ `(((typep ,emf 'fixnum)
+ (let* ((.slots. (get-slots-or-nil
+ ,(car required-args+rest-arg)))
+ (value (when .slots. (clos-slots-ref .slots. ,emf))))
+ (if (eq value +slot-unbound+)
+ (slot-unbound-internal ,(car required-args+rest-arg)
+ ,emf)
+ value)))))
+ ,@(when (and (null restp) (= 2 (length required-args+rest-arg)))
+ `(((typep ,emf 'fixnum)
+ (let ((.new-value. ,(car required-args+rest-arg))
+ (.slots. (get-slots-or-nil
+ ,(cadr required-args+rest-arg))))
+ (when .slots.
+ (setf (clos-slots-ref .slots. ,emf) .new-value.))))))
+ ;; (In cmucl-2.4.8 there was a commented-out third ,@(WHEN
+ ;; ...) clause here to handle SLOT-BOUNDish stuff. Since
+ ;; there was no explanation and presumably the code is 10+
+ ;; years stale, I simply deleted it. -- WHN)
+ (t
+ (etypecase ,emf
+ (method-call
+ (invoke-method-call ,emf ,restp ,@required-args+rest-arg))
+ (function
+ ,(if restp
+ `(apply (the function ,emf) ,@required-args+rest-arg)
+ `(funcall (the function ,emf)
+ ,@required-args+rest-arg))))))))
(defun invoke-emf (emf args)
(trace-emf-call emf t args)
(etypecase emf
(fast-method-call
(let* ((arg-info (fast-method-call-arg-info emf))
- (restp (cdr arg-info))
- (nreq (car arg-info)))
+ (restp (cdr arg-info))
+ (nreq (car arg-info)))
(if restp
- (let* ((rest-args (nthcdr nreq args))
- (req-args (ldiff args rest-args)))
- (apply (fast-method-call-function emf)
- (fast-method-call-pv-cell emf)
- (fast-method-call-next-method-call emf)
- (nconc req-args (list rest-args))))
- (cond ((null args)
- (if (eql nreq 0)
- (invoke-fast-method-call emf)
- (error "wrong number of args")))
- ((null (cdr args))
- (if (eql nreq 1)
- (invoke-fast-method-call emf (car args))
- (error "wrong number of args")))
- ((null (cddr args))
- (if (eql nreq 2)
- (invoke-fast-method-call emf (car args) (cadr args))
- (error "wrong number of args")))
- (t
- (apply (fast-method-call-function emf)
- (fast-method-call-pv-cell emf)
- (fast-method-call-next-method-call emf)
- args))))))
+ (let* ((rest-args (nthcdr nreq args))
+ (req-args (ldiff args rest-args)))
+ (apply (fast-method-call-function emf)
+ (fast-method-call-pv-cell emf)
+ (fast-method-call-next-method-call emf)
+ (nconc req-args (list rest-args))))
+ (cond ((null args)
+ (if (eql nreq 0)
+ (invoke-fast-method-call emf)
+ (error 'simple-program-error
+ :format-control "invalid number of arguments: 0"
+ :format-arguments nil)))
+ ((null (cdr args))
+ (if (eql nreq 1)
+ (invoke-fast-method-call emf (car args))
+ (error 'simple-program-error
+ :format-control "invalid number of arguments: 1"
+ :format-arguments nil)))
+ ((null (cddr args))
+ (if (eql nreq 2)
+ (invoke-fast-method-call emf (car args) (cadr args))
+ (error 'simple-program-error
+ :format-control "invalid number of arguments: 2"
+ :format-arguments nil)))
+ (t
+ (apply (fast-method-call-function emf)
+ (fast-method-call-pv-cell emf)
+ (fast-method-call-next-method-call emf)
+ args))))))
(method-call
(apply (method-call-function emf)
- args
- (method-call-call-method-args emf)))
+ args
+ (method-call-call-method-args emf)))
(fixnum
- (cond ((null args) (error "1 or 2 args were expected."))
- ((null (cdr args))
- (let ((value (%instance-ref (get-slots (car args)) emf)))
- (if (eq value *slot-unbound*)
- (slot-unbound-internal (car args) emf)
- value)))
- ((null (cddr args))
- (setf (%instance-ref (get-slots (cadr args)) emf)
- (car args)))
- (t (error "1 or 2 args were expected."))))
+ (cond ((null args)
+ (error 'simple-program-error
+ :format-control "invalid number of arguments: 0"
+ :format-arguments nil))
+ ((null (cdr args))
+ (let* ((slots (get-slots (car args)))
+ (value (clos-slots-ref slots emf)))
+ (if (eq value +slot-unbound+)
+ (slot-unbound-internal (car args) emf)
+ value)))
+ ((null (cddr args))
+ (setf (clos-slots-ref (get-slots (cadr args)) emf)
+ (car args)))
+ (t (error 'simple-program-error
+ :format-control "invalid number of arguments"
+ :format-arguments nil))))
(fast-instance-boundp
(if (or (null args) (cdr args))
- (error "1 arg was expected.")
- (not (eq (%instance-ref (get-slots (car args))
- (fast-instance-boundp-index emf))
- *slot-unbound*))))
+ (error 'simple-program-error
+ :format-control "invalid number of arguments"
+ :format-arguments nil)
+ (let ((slots (get-slots (car args))))
+ (not (eq (clos-slots-ref slots (fast-instance-boundp-index emf))
+ +slot-unbound+)))))
(function
(apply emf args))))
-
-;; KLUDGE: A comment from the original PCL said "This can be improved alot."
-(defun gf-make-function-from-emf (gf emf)
- (etypecase emf
- (fast-method-call (let* ((arg-info (gf-arg-info gf))
- (nreq (arg-info-number-required arg-info))
- (restp (arg-info-applyp arg-info)))
- #'(lambda (&rest args)
- (trace-emf-call emf t args)
- (apply (fast-method-call-function emf)
- (fast-method-call-pv-cell emf)
- (fast-method-call-next-method-call emf)
- (if restp
- (let* ((rest-args (nthcdr nreq args))
- (req-args (ldiff args
- rest-args)))
- (nconc req-args rest-args))
- args)))))
- (method-call #'(lambda (&rest args)
- (trace-emf-call emf t args)
- (apply (method-call-function emf)
- args
- (method-call-call-method-args emf))))
- (function emf)))
\f
(defmacro bind-fast-lexical-method-macros ((args rest-arg next-method-call)
- &body body)
- `(macrolet ((call-next-method-bind (&body body)
- `(let () ,@body))
- (call-next-method-body (cnm-args)
- `(if ,',next-method-call
- ,(if (and (null ',rest-arg)
- (consp cnm-args)
- (eq (car cnm-args) 'list))
- `(invoke-effective-method-function
- ,',next-method-call nil
- ,@(cdr cnm-args))
- (let ((call `(invoke-effective-method-function
- ,',next-method-call
- ,',(not (null rest-arg))
- ,@',args
- ,@',(when rest-arg `(,rest-arg)))))
- `(if ,cnm-args
- (bind-args ((,@',args
- ,@',(when rest-arg
- `(&rest ,rest-arg)))
- ,cnm-args)
- ,call)
- ,call)))
- (error "no next method")))
- (next-method-p-body ()
- `(not (null ,',next-method-call))))
- ,@body))
+ &body body)
+ (let* ((all-params (append args (when rest-arg (list rest-arg))))
+ (rebindings (mapcar (lambda (x) (list x x)) all-params)))
+ `(macrolet ((narrowed-emf (emf)
+ ;; INVOKE-EFFECTIVE-METHOD-FUNCTION has code in it to
+ ;; dispatch on the possibility that EMF might be of
+ ;; type FIXNUM (as an optimized representation of a
+ ;; slot accessor). But as far as I (WHN 2002-06-11)
+ ;; can tell, it's impossible for such a representation
+ ;; to end up as .NEXT-METHOD-CALL. By reassuring
+ ;; INVOKE-E-M-F that when called from this context
+ ;; it needn't worry about the FIXNUM case, we can
+ ;; keep those cases from being compiled, which is
+ ;; good both because it saves bytes and because it
+ ;; avoids annoying type mismatch compiler warnings.
+ ;;
+ ;; KLUDGE: In sbcl-0.7.4.29, the compiler's type
+ ;; system isn't smart enough about NOT and
+ ;; intersection types to benefit from a (NOT FIXNUM)
+ ;; declaration here. -- WHN 2002-06-12 (FIXME: maybe
+ ;; it is now... -- CSR, 2003-06-07)
+ ;;
+ ;; FIXME: Might the FUNCTION type be omittable here,
+ ;; leaving only METHOD-CALLs? Failing that, could this
+ ;; be documented somehow? (It'd be nice if the types
+ ;; involved could be understood without solving the
+ ;; halting problem.)
+ `(the (or function method-call fast-method-call)
+ ,emf))
+ (call-next-method-bind (&body body)
+ `(let () ,@body))
+ (call-next-method-body (method-name-declaration cnm-args)
+ `(if ,',next-method-call
+ ,(locally
+ ;; This declaration suppresses a "deleting
+ ;; unreachable code" note for the following IF
+ ;; when REST-ARG is NIL. It is not nice for
+ ;; debugging SBCL itself, but at least it
+ ;; keeps us from annoying users.
+ (declare (optimize (inhibit-warnings 3)))
+ (if (and (null ',rest-arg)
+ (consp cnm-args)
+ (eq (car cnm-args) 'list))
+ `(invoke-effective-method-function
+ (narrowed-emf ,',next-method-call)
+ nil
+ ,@(cdr cnm-args))
+ (let ((call `(invoke-effective-method-function
+ (narrowed-emf ,',next-method-call)
+ ,',(not (null rest-arg))
+ ,@',args
+ ,@',(when rest-arg `(,rest-arg)))))
+ `(if ,cnm-args
+ (bind-args ((,@',args
+ ,@',(when rest-arg
+ `(&rest ,rest-arg)))
+ ,cnm-args)
+ ,call)
+ ,call))))
+ ,(locally
+ ;; As above, this declaration suppresses code
+ ;; deletion notes.
+ (declare (optimize (inhibit-warnings 3)))
+ (if (and (null ',rest-arg)
+ (consp cnm-args)
+ (eq (car cnm-args) 'list))
+ `(call-no-next-method ',method-name-declaration
+ ,@(cdr cnm-args))
+ `(call-no-next-method ',method-name-declaration
+ ,@',args
+ ,@',(when rest-arg
+ `(,rest-arg)))))))
+ (next-method-p-body ()
+ `(not (null ,',next-method-call)))
+ (with-rebound-original-args ((cnm-p setq-p) &body body)
+ (if (or cnm-p setq-p)
+ `(let ,',rebindings
+ (declare (ignorable ,@',all-params))
+ ,@body)
+ `(let () ,@body))))
+ ,@body)))
(defmacro bind-lexical-method-functions
- ((&key call-next-method-p next-method-p-p closurep applyp)
+ ((&key call-next-method-p next-method-p-p setq-p
+ closurep applyp method-name-declaration)
&body body)
(cond ((and (null call-next-method-p) (null next-method-p-p)
- (null closurep)
- (null applyp))
- `(let () ,@body))
- ((and (null closurep)
- (null applyp))
- ;; OK to use MACROLET, and all args are mandatory
- ;; (else APPLYP would be true).
- `(call-next-method-bind
- (macrolet ((call-next-method (&rest cnm-args)
- `(call-next-method-body ,(when cnm-args
- `(list ,@cnm-args))))
- (next-method-p ()
- `(next-method-p-body)))
- ,@body)))
- (t
- `(call-next-method-bind
- (flet (,@(and call-next-method-p
- '((call-next-method (&rest cnm-args)
- (call-next-method-body cnm-args))))
- ,@(and next-method-p-p
- '((next-method-p ()
- (next-method-p-body)))))
- ,@body)))))
+ (null closurep) (null applyp) (null setq-p))
+ `(let () ,@body))
+ (t
+ `(call-next-method-bind
+ (flet (,@(and call-next-method-p
+ `((call-next-method (&rest cnm-args)
+ (call-next-method-body
+ ,method-name-declaration
+ cnm-args))))
+ ,@(and next-method-p-p
+ '((next-method-p ()
+ (next-method-p-body)))))
+ (with-rebound-original-args (,call-next-method-p ,setq-p)
+ ,@body))))))
(defmacro bind-args ((lambda-list args) &body body)
(let ((args-tail '.args-tail.)
- (key '.key.)
- (state 'required))
+ (key '.key.)
+ (state 'required))
(flet ((process-var (var)
- (if (memq var lambda-list-keywords)
- (progn
- (case var
- (&optional (setq state 'optional))
- (&key (setq state 'key))
- (&allow-other-keys)
- (&rest (setq state 'rest))
- (&aux (setq state 'aux))
- (otherwise
- (error "encountered the non-standard lambda list keyword ~S"
- var)))
- nil)
- (case state
- (required `((,var (pop ,args-tail))))
- (optional (cond ((not (consp var))
- `((,var (when ,args-tail
- (pop ,args-tail)))))
- ((null (cddr var))
- `((,(car var) (if ,args-tail
- (pop ,args-tail)
- ,(cadr var)))))
- (t
- `((,(caddr var) ,args-tail)
- (,(car var) (if ,args-tail
- (pop ,args-tail)
- ,(cadr var)))))))
- (rest `((,var ,args-tail)))
- (key (cond ((not (consp var))
- `((,var (get-key-arg ,(make-keyword var)
- ,args-tail))))
- ((null (cddr var))
- (multiple-value-bind (keyword variable)
- (if (consp (car var))
- (values (caar var)
- (cadar var))
- (values (make-keyword (car var))
- (car var)))
- `((,key (get-key-arg1 ,keyword ,args-tail))
- (,variable (if (consp ,key)
- (car ,key)
- ,(cadr var))))))
- (t
- (multiple-value-bind (keyword variable)
- (if (consp (car var))
- (values (caar var)
- (cadar var))
- (values (make-keyword (car var))
- (car var)))
- `((,key (get-key-arg1 ,keyword ,args-tail))
- (,(caddr var) ,key)
- (,variable (if (consp ,key)
- (car ,key)
- ,(cadr var))))))))
- (aux `(,var))))))
+ (if (memq var lambda-list-keywords)
+ (progn
+ (case var
+ (&optional (setq state 'optional))
+ (&key (setq state 'key))
+ (&allow-other-keys)
+ (&rest (setq state 'rest))
+ (&aux (setq state 'aux))
+ (otherwise
+ (error
+ "encountered the non-standard lambda list keyword ~S"
+ var)))
+ nil)
+ (case state
+ (required `((,var (pop ,args-tail))))
+ (optional (cond ((not (consp var))
+ `((,var (when ,args-tail
+ (pop ,args-tail)))))
+ ((null (cddr var))
+ `((,(car var) (if ,args-tail
+ (pop ,args-tail)
+ ,(cadr var)))))
+ (t
+ `((,(caddr var) ,args-tail)
+ (,(car var) (if ,args-tail
+ (pop ,args-tail)
+ ,(cadr var)))))))
+ (rest `((,var ,args-tail)))
+ (key (cond ((not (consp var))
+ `((,var (car
+ (get-key-arg-tail ,(keywordicate var)
+ ,args-tail)))))
+ ((null (cddr var))
+ (multiple-value-bind (keyword variable)
+ (if (consp (car var))
+ (values (caar var)
+ (cadar var))
+ (values (keywordicate (car var))
+ (car var)))
+ `((,key (get-key-arg-tail ',keyword
+ ,args-tail))
+ (,variable (if ,key
+ (car ,key)
+ ,(cadr var))))))
+ (t
+ (multiple-value-bind (keyword variable)
+ (if (consp (car var))
+ (values (caar var)
+ (cadar var))
+ (values (keywordicate (car var))
+ (car var)))
+ `((,key (get-key-arg-tail ',keyword
+ ,args-tail))
+ (,(caddr var) ,key)
+ (,variable (if ,key
+ (car ,key)
+ ,(cadr var))))))))
+ (aux `(,var))))))
(let ((bindings (mapcan #'process-var lambda-list)))
- `(let* ((,args-tail ,args)
- ,@bindings)
- (declare (ignorable ,args-tail))
- ,@body)))))
-
-(defun get-key-arg (keyword list)
- (loop (when (atom list) (return nil))
- (when (eq (car list) keyword) (return (cadr list)))
- (setq list (cddr list))))
-
-(defun get-key-arg1 (keyword list)
- (loop (when (atom list) (return nil))
- (when (eq (car list) keyword) (return (cdr list)))
- (setq list (cddr list))))
+ `(let* ((,args-tail ,args)
+ ,@bindings
+ (.dummy0.
+ ,@(when (eq state 'optional)
+ `((unless (null ,args-tail)
+ (error 'simple-program-error
+ :format-control "surplus arguments: ~S"
+ :format-arguments (list ,args-tail)))))))
+ (declare (ignorable ,args-tail .dummy0.))
+ ,@body)))))
+
+(defun get-key-arg-tail (keyword list)
+ (loop for (key . tail) on list by #'cddr
+ when (null tail) do
+ ;; FIXME: Do we want to export this symbol? Or maybe use an
+ ;; (ERROR 'SIMPLE-PROGRAM-ERROR) form?
+ (sb-c::%odd-key-args-error)
+ when (eq key keyword)
+ return tail))
(defun walk-method-lambda (method-lambda required-parameters env slots calls)
(let ((call-next-method-p nil) ; flag indicating that CALL-NEXT-METHOD
- ; should be in the method definition
- (closurep nil) ; flag indicating that #'CALL-NEXT-METHOD
- ; was seen in the body of a method
- (next-method-p-p nil)) ; flag indicating that NEXT-METHOD-P
- ; should be in the method definition
+ ; should be in the method definition
+ (closurep nil) ; flag indicating that #'CALL-NEXT-METHOD
+ ; was seen in the body of a method
+ (next-method-p-p nil) ; flag indicating that NEXT-METHOD-P
+ ; should be in the method definition
+ (setq-p nil))
(flet ((walk-function (form context env)
- (cond ((not (eq context ':eval)) form)
- ;; FIXME: Jumping to a conclusion from the way it's used
- ;; above, perhaps CONTEXT should be called SITUATION
- ;; (after the term used in the ANSI specification of
- ;; EVAL-WHEN) and given modern ANSI keyword values
- ;; like :LOAD-TOPLEVEL.
- ((not (listp form)) form)
- ((eq (car form) 'call-next-method)
- (setq call-next-method-p 't)
- form)
- ((eq (car form) 'next-method-p)
- (setq next-method-p-p 't)
- form)
- ((and (eq (car form) 'function)
- (cond ((eq (cadr form) 'call-next-method)
- (setq call-next-method-p 't)
- (setq closurep t)
- form)
- ((eq (cadr form) 'next-method-p)
- (setq next-method-p-p 't)
- (setq closurep t)
- form)
- (t nil))))
- (;; FIXME: should be MEMQ or FIND :TEST #'EQ
- (and (or (eq (car form) 'slot-value)
- (eq (car form) 'set-slot-value)
- (eq (car form) 'slot-boundp))
- (constantp (caddr form)))
- (let ((parameter (can-optimize-access form
- required-parameters
- env)))
- ;; FIXME: could be
- ;; (LET ((FUN (ECASE (CAR FORM) ..)))
- ;; (FUNCALL FUN SLOTS PARAMETER FORM))
- (ecase (car form)
- (slot-value
- (optimize-slot-value slots parameter form))
- (set-slot-value
- (optimize-set-slot-value slots parameter form))
- (slot-boundp
- (optimize-slot-boundp slots parameter form)))))
- ((and (eq (car form) 'apply)
- (consp (cadr form))
- (eq (car (cadr form)) 'function)
- (generic-function-name-p (cadr (cadr form))))
- (optimize-generic-function-call
- form required-parameters env slots calls))
- ((generic-function-name-p (car form))
- (optimize-generic-function-call
- form required-parameters env slots calls))
- ((and (eq (car form) 'asv-funcall)
- *optimize-asv-funcall-p*)
- (case (fourth form)
- (reader (push (third form) *asv-readers*))
- (writer (push (third form) *asv-writers*))
- (boundp (push (third form) *asv-boundps*)))
- `(,(second form) ,@(cddddr form)))
- (t form))))
+ (cond ((not (eq context :eval)) form)
+ ;; FIXME: Jumping to a conclusion from the way it's used
+ ;; above, perhaps CONTEXT should be called SITUATION
+ ;; (after the term used in the ANSI specification of
+ ;; EVAL-WHEN) and given modern ANSI keyword values
+ ;; like :LOAD-TOPLEVEL.
+ ((not (listp form)) form)
+ ((eq (car form) 'call-next-method)
+ (setq call-next-method-p t)
+ form)
+ ((eq (car form) 'next-method-p)
+ (setq next-method-p-p t)
+ form)
+ ((memq (car form) '(setq multiple-value-setq))
+ ;; FIXME: this is possibly a little strong as
+ ;; conditions go. Ideally we would want to detect
+ ;; which, if any, of the method parameters are
+ ;; being set, and communicate that information to
+ ;; e.g. SPLIT-DECLARATIONS. However, the brute
+ ;; force method doesn't really cost much; a little
+ ;; loss of discrimination over IGNORED variables
+ ;; should be all. -- CSR, 2004-07-01
+ (setq setq-p t)
+ form)
+ ((and (eq (car form) 'function)
+ (cond ((eq (cadr form) 'call-next-method)
+ (setq call-next-method-p t)
+ (setq closurep t)
+ form)
+ ((eq (cadr form) 'next-method-p)
+ (setq next-method-p-p t)
+ (setq closurep t)
+ form)
+ (t nil))))
+ ((and (memq (car form)
+ '(slot-value set-slot-value slot-boundp))
+ (constantp (caddr form)))
+ (let ((parameter (can-optimize-access form
+ required-parameters
+ env)))
+ (let ((fun (ecase (car form)
+ (slot-value #'optimize-slot-value)
+ (set-slot-value #'optimize-set-slot-value)
+ (slot-boundp #'optimize-slot-boundp))))
+ (funcall fun slots parameter form))))
+ ((and (eq (car form) 'apply)
+ (consp (cadr form))
+ (eq (car (cadr form)) 'function)
+ (generic-function-name-p (cadr (cadr form))))
+ (optimize-generic-function-call
+ form required-parameters env slots calls))
+ ((generic-function-name-p (car form))
+ (optimize-generic-function-call
+ form required-parameters env slots calls))
+ (t form))))
(let ((walked-lambda (walk-form method-lambda env #'walk-function)))
- (values walked-lambda
- call-next-method-p
- closurep
- next-method-p-p)))))
+ (values walked-lambda
+ call-next-method-p
+ closurep
+ next-method-p-p
+ setq-p)))))
(defun generic-function-name-p (name)
- (and (sb-int:legal-function-name-p name)
+ (and (legal-fun-name-p name)
(gboundp name)
(if (eq *boot-state* 'complete)
- (standard-generic-function-p (gdefinition name))
- (funcallable-instance-p (gdefinition name)))))
-
-(defun make-parameter-references (specialized-lambda-list
- required-parameters
- declarations
- method-name
- specializers)
- (flet ((ignoredp (symbol)
- (dolist (decl (cdar declarations))
- (when (and (eq (car decl) 'ignore)
- (memq symbol (cdr decl)))
- (return t)))))
- (gathering ((references (collecting)))
- (iterate ((s (list-elements specialized-lambda-list))
- (p (list-elements required-parameters)))
- (progn p)
- (cond ((not (listp s)))
- ((ignoredp (car s))
- (warn "In DEFMETHOD ~S, there is a~%~
- redundant IGNORE declaration for the parameter ~S."
- method-name
- specializers
- (car s)))
- (t
- (gather (car s) references)))))))
+ (standard-generic-function-p (gdefinition name))
+ (funcallable-instance-p (gdefinition name)))))
\f
(defvar *method-function-plist* (make-hash-table :test 'eq))
(defvar *mf1* nil)
(setf (gethash *mf1* *method-function-plist*) *mf1p*))
(unless (eq method-function *mf1*)
(setf *mf1* method-function
- *mf1cp* nil
- *mf1p* (gethash method-function *method-function-plist*)))
+ *mf1cp* nil
+ *mf1p* (gethash method-function *method-function-plist*)))
*mf1p*)
-(defun #-setf SETF\ SB-PCL\ METHOD-FUNCTION-PLIST
- #+setf (setf method-function-plist)
+(defun (setf method-function-plist)
(val method-function)
(unless (eq method-function *mf1*)
(rotatef *mf1* *mf2*)
(unless (or (eq method-function *mf1*) (null *mf1cp*))
(setf (gethash *mf1* *method-function-plist*) *mf1p*))
(setf *mf1* method-function
- *mf1cp* t
- *mf1p* val))
+ *mf1cp* t
+ *mf1p* val))
(defun method-function-get (method-function key &optional default)
(getf (method-function-plist method-function) key default))
-(defun #-setf SETF\ SB-PCL\ METHOD-FUNCTION-GET
- #+setf (setf method-function-get)
+(defun (setf method-function-get)
(val method-function key)
(setf (getf (method-function-plist method-function) key) val))
(defun load-defmethod
(class name quals specls ll initargs &optional pv-table-symbol)
- (when (listp name) (do-standard-defsetf-1 (cadr name)))
(setq initargs (copy-tree initargs))
- (let ((method-spec (or (getf initargs ':method-spec)
- (make-method-spec name quals specls))))
- (setf (getf initargs ':method-spec) method-spec)
- (record-definition 'method method-spec)
+ (let ((method-spec (or (getf initargs :method-spec)
+ (make-method-spec name quals specls))))
+ (setf (getf initargs :method-spec) method-spec)
(load-defmethod-internal class name quals specls
- ll initargs pv-table-symbol)))
+ ll initargs pv-table-symbol)))
(defun load-defmethod-internal
(method-class gf-spec qualifiers specializers lambda-list
- initargs pv-table-symbol)
- (when (listp gf-spec) (do-standard-defsetf-1 (cadr gf-spec)))
+ initargs pv-table-symbol)
(when pv-table-symbol
- (setf (getf (getf initargs ':plist) :pv-table-symbol)
- pv-table-symbol))
- ;; FIXME: It seems as though I should be able to get this to work.
- ;; But it keeps on screwing up PCL bootstrapping.
- #+nil
+ (setf (getf (getf initargs :plist) :pv-table-symbol)
+ pv-table-symbol))
(when (and (eq *boot-state* 'complete)
- (fboundp gf-spec))
- (let* ((gf (symbol-function gf-spec))
- (method (and (generic-function-p gf)
- (find-method gf
- qualifiers
- (mapcar #'find-class specializers)
- nil))))
+ (fboundp gf-spec))
+ (let* ((gf (fdefinition gf-spec))
+ (method (and (generic-function-p gf)
+ (generic-function-methods gf)
+ (find-method gf
+ qualifiers
+ (parse-specializers specializers)
+ nil))))
(when method
- (sb-kernel::style-warn "redefining ~S~{ ~S~} ~S in DEFMETHOD"
- gf-spec qualifiers specializers))))
+ (style-warn "redefining ~S~{ ~S~} ~S in DEFMETHOD"
+ gf-spec qualifiers specializers))))
(let ((method (apply #'add-named-method
- gf-spec qualifiers specializers lambda-list
- :definition-source `((defmethod ,gf-spec
- ,@qualifiers
- ,specializers)
- ,*load-truename*)
- initargs)))
+ gf-spec qualifiers specializers lambda-list
+ :definition-source `((defmethod ,gf-spec
+ ,@qualifiers
+ ,specializers)
+ ,*load-pathname*)
+ initargs)))
(unless (or (eq method-class 'standard-method)
- (eq (find-class method-class nil) (class-of method)))
+ (eq (find-class method-class nil) (class-of method)))
;; FIXME: should be STYLE-WARNING?
(format *error-output*
- "~&At the time the method with qualifiers ~:S and~%~
- specializers ~:S on the generic function ~S~%~
- was compiled, the method-class for that generic function was~%~
- ~S. But, the method class is now ~S, this~%~
- may mean that this method was compiled improperly.~%"
- qualifiers specializers gf-spec
- method-class (class-name (class-of method))))
+ "~&At the time the method with qualifiers ~:S and~%~
+ specializers ~:S on the generic function ~S~%~
+ was compiled, the method-class for that generic function was~%~
+ ~S. But, the method class is now ~S, this~%~
+ may mean that this method was compiled improperly.~%"
+ qualifiers specializers gf-spec
+ method-class (class-name (class-of method))))
method))
(defun make-method-spec (gf-spec qualifiers unparsed-specializers)
- `(method ,gf-spec ,@qualifiers ,unparsed-specializers))
+ `(slow-method ,gf-spec ,@qualifiers ,unparsed-specializers))
(defun initialize-method-function (initargs &optional return-function-p method)
- (let* ((mf (getf initargs ':function))
- (method-spec (getf initargs ':method-spec))
- (plist (getf initargs ':plist))
- (pv-table-symbol (getf plist ':pv-table-symbol))
- (pv-table nil)
- (mff (getf initargs ':fast-function)))
+ (let* ((mf (getf initargs :function))
+ (method-spec (getf initargs :method-spec))
+ (plist (getf initargs :plist))
+ (pv-table-symbol (getf plist :pv-table-symbol))
+ (pv-table nil)
+ (mff (getf initargs :fast-function)))
(flet ((set-mf-property (p v)
- (when mf
- (setf (method-function-get mf p) v))
- (when mff
- (setf (method-function-get mff p) v))))
+ (when mf
+ (setf (method-function-get mf p) v))
+ (when mff
+ (setf (method-function-get mff p) v))))
(when method-spec
- (when mf
- (setq mf (set-function-name mf method-spec)))
- (when mff
- (let ((name `(,(or (get (car method-spec) 'fast-sym)
- (setf (get (car method-spec) 'fast-sym)
- ;; KLUDGE: If we're going to be
- ;; interning private symbols in our
- ;; a this way, it would be cleanest
- ;; to use a separate package
- ;; %PCL-PRIVATE or something, and
- ;; failing that, to use a special
- ;; symbol prefix denoting privateness.
- ;; -- WHN 19991201
- (intern (format nil "FAST-~A"
- (car method-spec))
- *pcl-package*)))
- ,@(cdr method-spec))))
- (set-function-name mff name)
- (unless mf
- (set-mf-property :name name)))))
+ (when mf
+ (setq mf (set-fun-name mf method-spec)))
+ (when mff
+ (let ((name `(fast-method ,@(cdr method-spec))))
+ (set-fun-name mff name)
+ (unless mf
+ (set-mf-property :name name)))))
(when plist
- (let ((snl (getf plist :slot-name-lists))
- (cl (getf plist :call-list)))
- (when (or snl cl)
- (setq pv-table (intern-pv-table :slot-name-lists snl
- :call-list cl))
- (when pv-table (set pv-table-symbol pv-table))
- (set-mf-property :pv-table pv-table)))
- (loop (when (null plist) (return nil))
- (set-mf-property (pop plist) (pop plist)))
- (when method
- (set-mf-property :method method))
- (when return-function-p
- (or mf (method-function-from-fast-function mff)))))))
+ (let ((snl (getf plist :slot-name-lists))
+ (cl (getf plist :call-list)))
+ (when (or snl cl)
+ (setq pv-table (intern-pv-table :slot-name-lists snl
+ :call-list cl))
+ (when pv-table (set pv-table-symbol pv-table))
+ (set-mf-property :pv-table pv-table)))
+ (loop (when (null plist) (return nil))
+ (set-mf-property (pop plist) (pop plist)))
+ (when method
+ (set-mf-property :method method))
+ (when return-function-p
+ (or mf (method-function-from-fast-function mff)))))))
\f
(defun analyze-lambda-list (lambda-list)
- ;;(declare (values nrequired noptional keysp restp allow-other-keys-p
- ;; keywords keyword-parameters))
- (flet ((parse-keyword-argument (arg)
- (if (listp arg)
- (if (listp (car arg))
- (caar arg)
- (make-keyword (car arg)))
- (make-keyword arg))))
+ (flet (;; FIXME: Is this redundant with SB-C::MAKE-KEYWORD-FOR-ARG?
+ (parse-key-arg (arg)
+ (if (listp arg)
+ (if (listp (car arg))
+ (caar arg)
+ (keywordicate (car arg)))
+ (keywordicate arg))))
(let ((nrequired 0)
- (noptional 0)
- (keysp nil)
- (restp nil)
- (allow-other-keys-p nil)
- (keywords ())
- (keyword-parameters ())
- (state 'required))
+ (noptional 0)
+ (keysp nil)
+ (restp nil)
+ (nrest 0)
+ (allow-other-keys-p nil)
+ (keywords ())
+ (keyword-parameters ())
+ (state 'required))
(dolist (x lambda-list)
- (if (memq x lambda-list-keywords)
- (case x
- (&optional (setq state 'optional))
- (&key (setq keysp 't
- state 'key))
- (&allow-other-keys (setq allow-other-keys-p 't))
- (&rest (setq restp 't
- state 'rest))
- (&aux (return t))
- (otherwise
- (error "encountered the non-standard lambda list keyword ~S" x)))
- (ecase state
- (required (incf nrequired))
- (optional (incf noptional))
- (key (push (parse-keyword-argument x) keywords)
- (push x keyword-parameters))
- (rest ()))))
+ (if (memq x lambda-list-keywords)
+ (case x
+ (&optional (setq state 'optional))
+ (&key (setq keysp t
+ state 'key))
+ (&allow-other-keys (setq allow-other-keys-p t))
+ (&rest (setq restp t
+ state 'rest))
+ (&aux (return t))
+ (otherwise
+ (error "encountered the non-standard lambda list keyword ~S"
+ x)))
+ (ecase state
+ (required (incf nrequired))
+ (optional (incf noptional))
+ (key (push (parse-key-arg x) keywords)
+ (push x keyword-parameters))
+ (rest (incf nrest)))))
+ (when (and restp (zerop nrest))
+ (error "Error in lambda-list:~%~
+ After &REST, a DEFGENERIC lambda-list ~
+ must be followed by at least one variable."))
(values nrequired noptional keysp restp allow-other-keys-p
- (reverse keywords)
- (reverse keyword-parameters)))))
+ (reverse keywords)
+ (reverse keyword-parameters)))))
(defun keyword-spec-name (x)
(let ((key (if (atom x) x (car x))))
(if (atom key)
- (intern (symbol-name key) *keyword-package*)
- (car key))))
+ (keywordicate key)
+ (car key))))
(defun ftype-declaration-from-lambda-list (lambda-list name)
(multiple-value-bind (nrequired noptional keysp restp allow-other-keys-p
- keywords keyword-parameters)
+ keywords keyword-parameters)
(analyze-lambda-list lambda-list)
(declare (ignore keyword-parameters))
- (let* ((old (sb-c::info :function :type name)) ;FIXME:FDOCUMENTATION instead?
- (old-ftype (if (sb-c::function-type-p old) old nil))
- (old-restp (and old-ftype (sb-c::function-type-rest old-ftype)))
- (old-keys (and old-ftype
- (mapcar #'sb-c::key-info-name
- (sb-c::function-type-keywords old-ftype))))
- (old-keysp (and old-ftype (sb-c::function-type-keyp old-ftype)))
- (old-allowp (and old-ftype (sb-c::function-type-allowp old-ftype)))
- (keywords (union old-keys (mapcar #'keyword-spec-name keywords))))
- `(function ,(append (make-list nrequired :initial-element 't)
- (when (plusp noptional)
- (append '(&optional)
- (make-list noptional :initial-element 't)))
- (when (or restp old-restp)
- '(&rest t))
- (when (or keysp old-keysp)
- (append '(&key)
- (mapcar #'(lambda (key)
- `(,key t))
- keywords)
- (when (or allow-other-keys-p old-allowp)
- '(&allow-other-keys)))))
- *))))
+ (let* ((old (info :function :type name)) ;FIXME:FDOCUMENTATION instead?
+ (old-ftype (if (fun-type-p old) old nil))
+ (old-restp (and old-ftype (fun-type-rest old-ftype)))
+ (old-keys (and old-ftype
+ (mapcar #'key-info-name
+ (fun-type-keywords
+ old-ftype))))
+ (old-keysp (and old-ftype (fun-type-keyp old-ftype)))
+ (old-allowp (and old-ftype
+ (fun-type-allowp old-ftype)))
+ (keywords (union old-keys (mapcar #'keyword-spec-name keywords))))
+ `(function ,(append (make-list nrequired :initial-element t)
+ (when (plusp noptional)
+ (append '(&optional)
+ (make-list noptional :initial-element t)))
+ (when (or restp old-restp)
+ '(&rest t))
+ (when (or keysp old-keysp)
+ (append '(&key)
+ (mapcar (lambda (key)
+ `(,key t))
+ keywords)
+ (when (or allow-other-keys-p old-allowp)
+ '(&allow-other-keys)))))
+ *))))
(defun defgeneric-declaration (spec lambda-list)
- (when (consp spec)
- (setq spec (get-setf-function-name (cadr spec))))
`(ftype ,(ftype-declaration-from-lambda-list lambda-list spec) ,spec))
\f
;;;; early generic function support
-(defvar *early-generic-functions* ())
+(defvar *!early-generic-functions* ())
-(defun ensure-generic-function (function-name
- &rest all-keys
- &key environment
- &allow-other-keys)
+(defun ensure-generic-function (fun-name
+ &rest all-keys
+ &key environment
+ &allow-other-keys)
(declare (ignore environment))
- (let ((existing (and (gboundp function-name)
- (gdefinition function-name))))
+ (let ((existing (and (gboundp fun-name)
+ (gdefinition fun-name))))
(if (and existing
- (eq *boot-state* 'complete)
- (null (generic-function-p existing)))
- (generic-clobbers-function function-name)
- (apply #'ensure-generic-function-using-class
- existing function-name all-keys))))
-
-(defun generic-clobbers-function (function-name)
- (error 'sb-kernel:simple-program-error
- :format-control
- "~S already names an ordinary function or a macro."
- :format-arguments (list function-name)))
+ (eq *boot-state* 'complete)
+ (null (generic-function-p existing)))
+ (generic-clobbers-function fun-name)
+ (apply #'ensure-generic-function-using-class
+ existing fun-name all-keys))))
+
+(defun generic-clobbers-function (fun-name)
+ (error 'simple-program-error
+ :format-control "~S already names an ordinary function or a macro."
+ :format-arguments (list fun-name)))
(defvar *sgf-wrapper*
(boot-make-wrapper (early-class-size 'standard-generic-function)
- 'standard-generic-function))
+ 'standard-generic-function))
(defvar *sgf-slots-init*
- (mapcar #'(lambda (canonical-slot)
- (if (memq (getf canonical-slot :name) '(arg-info source))
- *slot-unbound*
- (let ((initfunction (getf canonical-slot :initfunction)))
- (if initfunction
- (funcall initfunction)
- *slot-unbound*))))
- (early-collect-inheritance 'standard-generic-function)))
+ (mapcar (lambda (canonical-slot)
+ (if (memq (getf canonical-slot :name) '(arg-info source))
+ +slot-unbound+
+ (let ((initfunction (getf canonical-slot :initfunction)))
+ (if initfunction
+ (funcall initfunction)
+ +slot-unbound+))))
+ (early-collect-inheritance 'standard-generic-function)))
(defvar *sgf-method-class-index*
- (bootstrap-slot-index 'standard-generic-function 'method-class))
+ (!bootstrap-slot-index 'standard-generic-function 'method-class))
(defun early-gf-p (x)
(and (fsc-instance-p x)
- (eq (instance-ref (get-slots x) *sgf-method-class-index*)
- *slot-unbound*)))
+ (eq (clos-slots-ref (get-slots x) *sgf-method-class-index*)
+ +slot-unbound+)))
(defvar *sgf-methods-index*
- (bootstrap-slot-index 'standard-generic-function 'methods))
+ (!bootstrap-slot-index 'standard-generic-function 'methods))
(defmacro early-gf-methods (gf)
- `(instance-ref (get-slots ,gf) *sgf-methods-index*))
+ `(clos-slots-ref (get-slots ,gf) *sgf-methods-index*))
(defvar *sgf-arg-info-index*
- (bootstrap-slot-index 'standard-generic-function 'arg-info))
+ (!bootstrap-slot-index 'standard-generic-function 'arg-info))
(defmacro early-gf-arg-info (gf)
- `(instance-ref (get-slots ,gf) *sgf-arg-info-index*))
+ `(clos-slots-ref (get-slots ,gf) *sgf-arg-info-index*))
(defvar *sgf-dfun-state-index*
- (bootstrap-slot-index 'standard-generic-function 'dfun-state))
+ (!bootstrap-slot-index 'standard-generic-function 'dfun-state))
(defstruct (arg-info
- (:conc-name nil)
- (:constructor make-arg-info ()))
+ (:conc-name nil)
+ (:constructor make-arg-info ())
+ (:copier nil))
(arg-info-lambda-list :no-lambda-list)
arg-info-precedence
arg-info-metatypes
arg-info-number-optional
arg-info-key/rest-p
- arg-info-keywords ;nil no keyword or rest allowed
- ;(k1 k2 ..) each method must accept these keyword arguments
- ;T must have &key or &rest
+ arg-info-keys ;nil no &KEY or &REST allowed
+ ;(k1 k2 ..) Each method must accept these &KEY arguments.
+ ;T must have &KEY or &REST
gf-info-simple-accessor-type ; nil, reader, writer, boundp
(gf-precompute-dfun-and-emf-p nil) ; set by set-arg-info
(length (arg-info-metatypes arg-info)))
(defun arg-info-nkeys (arg-info)
- (count-if #'(lambda (x) (neq x 't)) (arg-info-metatypes arg-info)))
+ (count-if (lambda (x) (neq x t)) (arg-info-metatypes arg-info)))
-;;; Keep pages clean by not setting if the value is already the same.
-(defmacro esetf (pos val)
- (let ((valsym (gensym "value")))
- `(let ((,valsym ,val))
- (unless (equal ,pos ,valsym)
- (setf ,pos ,valsym)))))
+(defun create-gf-lambda-list (lambda-list)
+ ;;; Create a gf lambda list from a method lambda list
+ (loop for x in lambda-list
+ collect (if (consp x) (list (car x)) x)
+ if (eq x '&key) do (loop-finish)))
(defun set-arg-info (gf &key new-method (lambda-list nil lambda-list-p)
- argument-precedence-order)
+ argument-precedence-order)
(let* ((arg-info (if (eq *boot-state* 'complete)
- (gf-arg-info gf)
- (early-gf-arg-info gf)))
- (methods (if (eq *boot-state* 'complete)
- (generic-function-methods gf)
- (early-gf-methods gf)))
- (was-valid-p (integerp (arg-info-number-optional arg-info)))
- (first-p (and new-method (null (cdr methods)))))
+ (gf-arg-info gf)
+ (early-gf-arg-info gf)))
+ (methods (if (eq *boot-state* 'complete)
+ (generic-function-methods gf)
+ (early-gf-methods gf)))
+ (was-valid-p (integerp (arg-info-number-optional arg-info)))
+ (first-p (and new-method (null (cdr methods)))))
(when (and (not lambda-list-p) methods)
(setq lambda-list (gf-lambda-list gf)))
(when (or lambda-list-p
- (and first-p
- (eq (arg-info-lambda-list arg-info) ':no-lambda-list)))
+ (and first-p
+ (eq (arg-info-lambda-list arg-info) :no-lambda-list)))
(multiple-value-bind (nreq nopt keysp restp allow-other-keys-p keywords)
- (analyze-lambda-list lambda-list)
- (when (and methods (not first-p))
- (let ((gf-nreq (arg-info-number-required arg-info))
- (gf-nopt (arg-info-number-optional arg-info))
- (gf-key/rest-p (arg-info-key/rest-p arg-info)))
- (unless (and (= nreq gf-nreq)
- (= nopt gf-nopt)
- (eq (or keysp restp) gf-key/rest-p))
- (error "The lambda-list ~S is incompatible with ~
- existing methods of ~S."
- lambda-list gf))))
- (when lambda-list-p
- (esetf (arg-info-lambda-list arg-info) lambda-list))
- (when (or lambda-list-p argument-precedence-order
- (null (arg-info-precedence arg-info)))
- (esetf (arg-info-precedence arg-info)
- (compute-precedence lambda-list nreq
- argument-precedence-order)))
- (esetf (arg-info-metatypes arg-info) (make-list nreq))
- (esetf (arg-info-number-optional arg-info) nopt)
- (esetf (arg-info-key/rest-p arg-info) (not (null (or keysp restp))))
- (esetf (arg-info-keywords arg-info)
- (if lambda-list-p
- (if allow-other-keys-p t keywords)
- (arg-info-key/rest-p arg-info)))))
+ (analyze-lambda-list lambda-list)
+ (when (and methods (not first-p))
+ (let ((gf-nreq (arg-info-number-required arg-info))
+ (gf-nopt (arg-info-number-optional arg-info))
+ (gf-key/rest-p (arg-info-key/rest-p arg-info)))
+ (unless (and (= nreq gf-nreq)
+ (= nopt gf-nopt)
+ (eq (or keysp restp) gf-key/rest-p))
+ (error "The lambda-list ~S is incompatible with ~
+ existing methods of ~S."
+ lambda-list gf))))
+ (setf (arg-info-lambda-list arg-info)
+ (if lambda-list-p
+ lambda-list
+ (create-gf-lambda-list lambda-list)))
+ (when (or lambda-list-p argument-precedence-order
+ (null (arg-info-precedence arg-info)))
+ (setf (arg-info-precedence arg-info)
+ (compute-precedence lambda-list nreq argument-precedence-order)))
+ (setf (arg-info-metatypes arg-info) (make-list nreq))
+ (setf (arg-info-number-optional arg-info) nopt)
+ (setf (arg-info-key/rest-p arg-info) (not (null (or keysp restp))))
+ (setf (arg-info-keys arg-info)
+ (if lambda-list-p
+ (if allow-other-keys-p t keywords)
+ (arg-info-key/rest-p arg-info)))))
(when new-method
(check-method-arg-info gf arg-info new-method))
(set-arg-info1 gf arg-info new-method methods was-valid-p first-p)
(defun check-method-arg-info (gf arg-info method)
(multiple-value-bind (nreq nopt keysp restp allow-other-keys-p keywords)
(analyze-lambda-list (if (consp method)
- (early-method-lambda-list method)
- (method-lambda-list method)))
+ (early-method-lambda-list method)
+ (method-lambda-list method)))
(flet ((lose (string &rest args)
- (error
- "attempt to add the method ~S to the generic function ~S.~%~
- But ~A"
- method
- gf
- (apply #'format nil string args)))
- (compare (x y)
- (if (> x y) "more" "fewer")))
+ (error 'simple-program-error
+ :format-control "~@<attempt to add the method~2I~_~S~I~_~
+ to the generic function~2I~_~S;~I~_~
+ but ~?~:>"
+ :format-arguments (list method gf string args)))
+ (comparison-description (x y)
+ (if (> x y) "more" "fewer")))
(let ((gf-nreq (arg-info-number-required arg-info))
- (gf-nopt (arg-info-number-optional arg-info))
- (gf-key/rest-p (arg-info-key/rest-p arg-info))
- (gf-keywords (arg-info-keywords arg-info)))
- (unless (= nreq gf-nreq)
- (lose
- "the method has ~A required arguments than the generic function."
- (compare nreq gf-nreq)))
- (unless (= nopt gf-nopt)
- (lose
- "the method has ~S optional arguments than the generic function."
- (compare nopt gf-nopt)))
- (unless (eq (or keysp restp) gf-key/rest-p)
- (error
- "The method and generic function differ in whether they accept~%~
- &REST or &KEY arguments."))
- (when (consp gf-keywords)
- (unless (or (and restp (not keysp))
- allow-other-keys-p
- (every #'(lambda (k) (memq k keywords)) gf-keywords))
- (lose "the method does not accept each of the keyword arguments~%~
- ~S."
- gf-keywords)))))))
+ (gf-nopt (arg-info-number-optional arg-info))
+ (gf-key/rest-p (arg-info-key/rest-p arg-info))
+ (gf-keywords (arg-info-keys arg-info)))
+ (unless (= nreq gf-nreq)
+ (lose
+ "the method has ~A required arguments than the generic function."
+ (comparison-description nreq gf-nreq)))
+ (unless (= nopt gf-nopt)
+ (lose
+ "the method has ~A optional arguments than the generic function."
+ (comparison-description nopt gf-nopt)))
+ (unless (eq (or keysp restp) gf-key/rest-p)
+ (lose
+ "the method and generic function differ in whether they accept~_~
+ &REST or &KEY arguments."))
+ (when (consp gf-keywords)
+ (unless (or (and restp (not keysp))
+ allow-other-keys-p
+ (every (lambda (k) (memq k keywords)) gf-keywords))
+ (lose "the method does not accept each of the &KEY arguments~2I~_~
+ ~S."
+ gf-keywords)))))))
(defun set-arg-info1 (gf arg-info new-method methods was-valid-p first-p)
(let* ((existing-p (and methods (cdr methods) new-method))
- (nreq (length (arg-info-metatypes arg-info)))
- (metatypes (if existing-p
- (arg-info-metatypes arg-info)
- (make-list nreq)))
- (type (if existing-p
- (gf-info-simple-accessor-type arg-info)
- nil)))
+ (nreq (length (arg-info-metatypes arg-info)))
+ (metatypes (if existing-p
+ (arg-info-metatypes arg-info)
+ (make-list nreq)))
+ (type (if existing-p
+ (gf-info-simple-accessor-type arg-info)
+ nil)))
(when (arg-info-valid-p arg-info)
(dolist (method (if new-method (list new-method) methods))
- (let* ((specializers (if (or (eq *boot-state* 'complete)
- (not (consp method)))
- (method-specializers method)
- (early-method-specializers method t)))
- (class (if (or (eq *boot-state* 'complete) (not (consp method)))
- (class-of method)
- (early-method-class method)))
- (new-type (when (and class
- (or (not (eq *boot-state* 'complete))
- (eq (generic-function-method-combination gf)
- *standard-method-combination*)))
- (cond ((eq class *the-class-standard-reader-method*)
- 'reader)
- ((eq class *the-class-standard-writer-method*)
- 'writer)
- ((eq class *the-class-standard-boundp-method*)
- 'boundp)))))
- (setq metatypes (mapcar #'raise-metatype metatypes specializers))
- (setq type (cond ((null type) new-type)
- ((eq type new-type) type)
- (t nil)))))
- (esetf (arg-info-metatypes arg-info) metatypes)
- (esetf (gf-info-simple-accessor-type arg-info) type)))
+ (let* ((specializers (if (or (eq *boot-state* 'complete)
+ (not (consp method)))
+ (method-specializers method)
+ (early-method-specializers method t)))
+ (class (if (or (eq *boot-state* 'complete) (not (consp method)))
+ (class-of method)
+ (early-method-class method)))
+ (new-type (when (and class
+ (or (not (eq *boot-state* 'complete))
+ (eq (generic-function-method-combination gf)
+ *standard-method-combination*)))
+ (cond ((eq class *the-class-standard-reader-method*)
+ 'reader)
+ ((eq class *the-class-standard-writer-method*)
+ 'writer)
+ ((eq class *the-class-standard-boundp-method*)
+ 'boundp)))))
+ (setq metatypes (mapcar #'raise-metatype metatypes specializers))
+ (setq type (cond ((null type) new-type)
+ ((eq type new-type) type)
+ (t nil)))))
+ (setf (arg-info-metatypes arg-info) metatypes)
+ (setf (gf-info-simple-accessor-type arg-info) type)))
(when (or (not was-valid-p) first-p)
(multiple-value-bind (c-a-m-emf std-p)
- (if (early-gf-p gf)
- (values t t)
- (compute-applicable-methods-emf gf))
- (esetf (gf-info-static-c-a-m-emf arg-info) c-a-m-emf)
- (esetf (gf-info-c-a-m-emf-std-p arg-info) std-p)
+ (if (early-gf-p gf)
+ (values t t)
+ (compute-applicable-methods-emf gf))
+ (setf (gf-info-static-c-a-m-emf arg-info) c-a-m-emf)
+ (setf (gf-info-c-a-m-emf-std-p arg-info) std-p)
(unless (gf-info-c-a-m-emf-std-p arg-info)
- (esetf (gf-info-simple-accessor-type arg-info) t))))
+ (setf (gf-info-simple-accessor-type arg-info) t))))
(unless was-valid-p
(let ((name (if (eq *boot-state* 'complete)
- (generic-function-name gf)
- (early-gf-name gf))))
- (esetf (gf-precompute-dfun-and-emf-p arg-info)
- (let* ((sym (if (atom name) name (cadr name)))
- (pkg-list (cons *pcl-package*
- (package-use-list *pcl-package*))))
- (and sym (symbolp sym)
- (not (null (memq (symbol-package sym) pkg-list)))
- (not (find #\space (symbol-name sym))))))))
- (esetf (gf-info-fast-mf-p arg-info)
- (or (not (eq *boot-state* 'complete))
- (let* ((method-class (generic-function-method-class gf))
- (methods (compute-applicable-methods
- #'make-method-lambda
- (list gf (class-prototype method-class)
- '(lambda) nil))))
- (and methods (null (cdr methods))
- (let ((specls (method-specializers (car methods))))
- (and (classp (car specls))
- (eq 'standard-generic-function
- (class-name (car specls)))
- (classp (cadr specls))
- (eq 'standard-method
- (class-name (cadr specls)))))))))
+ (generic-function-name gf)
+ (!early-gf-name gf))))
+ (setf (gf-precompute-dfun-and-emf-p arg-info)
+ (cond
+ ((and (consp name)
+ (member (car name)
+ *internal-pcl-generalized-fun-name-symbols*))
+ nil)
+ (t (let* ((symbol (fun-name-block-name name))
+ (package (symbol-package symbol)))
+ (and (or (eq package *pcl-package*)
+ (memq package (package-use-list *pcl-package*)))
+ ;; FIXME: this test will eventually be
+ ;; superseded by the *internal-pcl...* test,
+ ;; above. While we are in a process of
+ ;; transition, however, it should probably
+ ;; remain.
+ (not (find #\Space (symbol-name symbol))))))))))
+ (setf (gf-info-fast-mf-p arg-info)
+ (or (not (eq *boot-state* 'complete))
+ (let* ((method-class (generic-function-method-class gf))
+ (methods (compute-applicable-methods
+ #'make-method-lambda
+ (list gf (class-prototype method-class)
+ '(lambda) nil))))
+ (and methods (null (cdr methods))
+ (let ((specls (method-specializers (car methods))))
+ (and (classp (car specls))
+ (eq 'standard-generic-function
+ (class-name (car specls)))
+ (classp (cadr specls))
+ (eq 'standard-method
+ (class-name (cadr specls)))))))))
arg-info)
-;;; This is the early definition of ensure-generic-function-using-class.
+;;; This is the early definition of ENSURE-GENERIC-FUNCTION-USING-CLASS.
;;;
-;;; The static-slots field of the funcallable instances used as early generic
-;;; functions is used to store the early methods and early discriminator code
-;;; for the early generic function. The static slots field of the fins
-;;; contains a list whose:
+;;; The STATIC-SLOTS field of the funcallable instances used as early
+;;; generic functions is used to store the early methods and early
+;;; discriminator code for the early generic function. The static
+;;; slots field of the fins contains a list whose:
;;; CAR - a list of the early methods on this early gf
;;; CADR - the early discriminator code for this method
(defun ensure-generic-function-using-class (existing spec &rest keys
- &key (lambda-list nil lambda-list-p)
- &allow-other-keys)
+ &key (lambda-list nil
+ lambda-list-p)
+ argument-precedence-order
+ &allow-other-keys)
(declare (ignore keys))
(cond ((and existing (early-gf-p existing))
- existing)
- ((assoc spec *generic-function-fixups* :test #'equal)
- (if existing
- (make-early-gf spec lambda-list lambda-list-p existing)
- (error "The function ~S is not already defined." spec)))
- (existing
- (error "~S should be on the list ~S."
- spec
- '*generic-function-fixups*))
- (t
- (pushnew spec *early-generic-functions* :test #'equal)
- (make-early-gf spec lambda-list lambda-list-p))))
-
-(defun make-early-gf (spec &optional lambda-list lambda-list-p function)
+ (when lambda-list-p
+ (set-arg-info existing :lambda-list lambda-list))
+ existing)
+ ((assoc spec *!generic-function-fixups* :test #'equal)
+ (if existing
+ (make-early-gf spec lambda-list lambda-list-p existing
+ argument-precedence-order)
+ (error "The function ~S is not already defined." spec)))
+ (existing
+ (error "~S should be on the list ~S."
+ spec
+ '*!generic-function-fixups*))
+ (t
+ (pushnew spec *!early-generic-functions* :test #'equal)
+ (make-early-gf spec lambda-list lambda-list-p nil
+ argument-precedence-order))))
+
+(defun make-early-gf (spec &optional lambda-list lambda-list-p
+ function argument-precedence-order)
(let ((fin (allocate-funcallable-instance *sgf-wrapper* *sgf-slots-init*)))
(set-funcallable-instance-function
fin
(or function
- (if (eq spec 'print-object)
- #'(sb-kernel:instance-lambda (instance stream)
- (print-unreadable-object (instance stream :identity t)
- (format stream "std-instance")))
- #'(sb-kernel:instance-lambda (&rest args)
- (declare (ignore args))
- (error "The function of the funcallable-instance ~S~
- has not been set." fin)))))
+ (if (eq spec 'print-object)
+ #'(lambda (instance stream)
+ (print-unreadable-object (instance stream :identity t)
+ (format stream "std-instance")))
+ #'(lambda (&rest args)
+ (declare (ignore args))
+ (error "The function of the funcallable-instance ~S~
+ has not been set." fin)))))
(setf (gdefinition spec) fin)
- (bootstrap-set-slot 'standard-generic-function fin 'name spec)
- (bootstrap-set-slot 'standard-generic-function fin 'source *load-truename*)
- (set-function-name fin spec)
+ (!bootstrap-set-slot 'standard-generic-function fin 'name spec)
+ (!bootstrap-set-slot 'standard-generic-function
+ fin
+ 'source
+ *load-pathname*)
+ (set-fun-name fin spec)
(let ((arg-info (make-arg-info)))
(setf (early-gf-arg-info fin) arg-info)
(when lambda-list-p
- (proclaim (defgeneric-declaration spec lambda-list))
- (set-arg-info fin :lambda-list lambda-list)))
+ (proclaim (defgeneric-declaration spec lambda-list))
+ (if argument-precedence-order
+ (set-arg-info fin
+ :lambda-list lambda-list
+ :argument-precedence-order argument-precedence-order)
+ (set-arg-info fin :lambda-list lambda-list))))
fin))
(defun set-dfun (gf &optional dfun cache info)
(when cache
(setf (cache-owner cache) gf))
(let ((new-state (if (and dfun (or cache info))
- (list* dfun cache info)
- dfun)))
+ (list* dfun cache info)
+ dfun)))
(if (eq *boot-state* 'complete)
- (setf (gf-dfun-state gf) new-state)
- (setf (instance-ref (get-slots gf) *sgf-dfun-state-index*) new-state)))
+ (setf (gf-dfun-state gf) new-state)
+ (setf (clos-slots-ref (get-slots gf) *sgf-dfun-state-index*)
+ new-state)))
dfun)
(defun gf-dfun-cache (gf)
(let ((state (if (eq *boot-state* 'complete)
- (gf-dfun-state gf)
- (instance-ref (get-slots gf) *sgf-dfun-state-index*))))
+ (gf-dfun-state gf)
+ (clos-slots-ref (get-slots gf) *sgf-dfun-state-index*))))
(typecase state
(function nil)
(cons (cadr state)))))
(defun gf-dfun-info (gf)
(let ((state (if (eq *boot-state* 'complete)
- (gf-dfun-state gf)
- (instance-ref (get-slots gf) *sgf-dfun-state-index*))))
+ (gf-dfun-state gf)
+ (clos-slots-ref (get-slots gf) *sgf-dfun-state-index*))))
(typecase state
(function nil)
(cons (cddr state)))))
(defvar *sgf-name-index*
- (bootstrap-slot-index 'standard-generic-function 'name))
+ (!bootstrap-slot-index 'standard-generic-function 'name))
-(defun early-gf-name (gf)
- (instance-ref (get-slots gf) *sgf-name-index*))
+(defun !early-gf-name (gf)
+ (clos-slots-ref (get-slots gf) *sgf-name-index*))
(defun gf-lambda-list (gf)
(let ((arg-info (if (eq *boot-state* 'complete)
- (gf-arg-info gf)
- (early-gf-arg-info gf))))
- (if (eq ':no-lambda-list (arg-info-lambda-list arg-info))
- (let ((methods (if (eq *boot-state* 'complete)
- (generic-function-methods gf)
- (early-gf-methods gf))))
- (if (null methods)
- (progn
- (warn "no way to determine the lambda list for ~S" gf)
- nil)
- (let* ((method (car (last methods)))
- (ll (if (consp method)
- (early-method-lambda-list method)
- (method-lambda-list method)))
- (k (member '&key ll)))
- (if k
- (append (ldiff ll (cdr k)) '(&allow-other-keys))
- ll))))
- (arg-info-lambda-list arg-info))))
+ (gf-arg-info gf)
+ (early-gf-arg-info gf))))
+ (if (eq :no-lambda-list (arg-info-lambda-list arg-info))
+ (let ((methods (if (eq *boot-state* 'complete)
+ (generic-function-methods gf)
+ (early-gf-methods gf))))
+ (if (null methods)
+ (progn
+ (warn "no way to determine the lambda list for ~S" gf)
+ nil)
+ (let* ((method (car (last methods)))
+ (ll (if (consp method)
+ (early-method-lambda-list method)
+ (method-lambda-list method))))
+ (create-gf-lambda-list ll))))
+ (arg-info-lambda-list arg-info))))
(defmacro real-ensure-gf-internal (gf-class all-keys env)
`(progn
(cond ((symbolp ,gf-class)
- (setq ,gf-class (find-class ,gf-class t ,env)))
- ((classp ,gf-class))
- (t
- (error "The :GENERIC-FUNCTION-CLASS argument (~S) was neither a~%~
- class nor a symbol that names a class."
- ,gf-class)))
+ (setq ,gf-class (find-class ,gf-class t ,env)))
+ ((classp ,gf-class))
+ (t
+ (error "The :GENERIC-FUNCTION-CLASS argument (~S) was neither a~%~
+ class nor a symbol that names a class."
+ ,gf-class)))
(remf ,all-keys :generic-function-class)
(remf ,all-keys :environment)
(let ((combin (getf ,all-keys :method-combination '.shes-not-there.)))
(unless (eq combin '.shes-not-there.)
- (setf (getf ,all-keys :method-combination)
- (find-method-combination (class-prototype ,gf-class)
- (car combin)
- (cdr combin)))))))
+ (setf (getf ,all-keys :method-combination)
+ (find-method-combination (class-prototype ,gf-class)
+ (car combin)
+ (cdr combin)))))
+ (let ((method-class (getf ,all-keys :method-class '.shes-not-there.)))
+ (unless (eq method-class '.shes-not-there.)
+ (setf (getf ,all-keys :method-class)
+ (find-class method-class t ,env))))))
(defun real-ensure-gf-using-class--generic-function
(existing
- function-name
- &rest all-keys
- &key environment (lambda-list nil lambda-list-p)
- (generic-function-class 'standard-generic-function gf-class-p)
- &allow-other-keys)
+ fun-name
+ &rest all-keys
+ &key environment (lambda-list nil lambda-list-p)
+ (generic-function-class 'standard-generic-function gf-class-p)
+ &allow-other-keys)
(real-ensure-gf-internal generic-function-class all-keys environment)
(unless (or (null gf-class-p)
- (eq (class-of existing) generic-function-class))
+ (eq (class-of existing) generic-function-class))
(change-class existing generic-function-class))
(prog1
(apply #'reinitialize-instance existing all-keys)
(when lambda-list-p
- (proclaim (defgeneric-declaration function-name lambda-list)))))
+ (proclaim (defgeneric-declaration fun-name lambda-list)))))
(defun real-ensure-gf-using-class--null
(existing
- function-name
- &rest all-keys
- &key environment (lambda-list nil lambda-list-p)
- (generic-function-class 'standard-generic-function)
- &allow-other-keys)
+ fun-name
+ &rest all-keys
+ &key environment (lambda-list nil lambda-list-p)
+ (generic-function-class 'standard-generic-function)
+ &allow-other-keys)
(declare (ignore existing))
(real-ensure-gf-internal generic-function-class all-keys environment)
(prog1
- (setf (gdefinition function-name)
- (apply #'make-instance generic-function-class
- :name function-name all-keys))
+ (setf (gdefinition fun-name)
+ (apply #'make-instance generic-function-class
+ :name fun-name all-keys))
(when lambda-list-p
- (proclaim (defgeneric-declaration function-name lambda-list)))))
+ (proclaim (defgeneric-declaration fun-name lambda-list)))))
\f
-(defun get-generic-function-info (gf)
+(defun get-generic-fun-info (gf)
;; values nreq applyp metatypes nkeys arg-info
(multiple-value-bind (applyp metatypes arg-info)
(let* ((arg-info (if (early-gf-p gf)
- (early-gf-arg-info gf)
- (gf-arg-info gf)))
- (metatypes (arg-info-metatypes arg-info)))
- (values (arg-info-applyp arg-info)
- metatypes
- arg-info))
+ (early-gf-arg-info gf)
+ (gf-arg-info gf)))
+ (metatypes (arg-info-metatypes arg-info)))
+ (values (arg-info-applyp arg-info)
+ metatypes
+ arg-info))
(values (length metatypes) applyp metatypes
- (count-if #'(lambda (x) (neq x 't)) metatypes)
- arg-info)))
+ (count-if (lambda (x) (neq x t)) metatypes)
+ arg-info)))
(defun early-make-a-method (class qualifiers arglist specializers initargs doc
- &optional slot-name)
+ &optional slot-name)
(initialize-method-function initargs)
(let ((parsed ())
- (unparsed ()))
+ (unparsed ()))
;; Figure out whether we got class objects or class names as the
;; specializers and set parsed and unparsed appropriately. If we
;; got class objects, then we can compute unparsed, but if we got
;; Note that the use of not symbolp in this call to every should be
;; read as 'classp' we can't use classp itself because it doesn't
;; exist yet.
- (if (every #'(lambda (s) (not (symbolp s))) specializers)
- (setq parsed specializers
- unparsed (mapcar #'(lambda (s)
- (if (eq s 't) 't (class-name s)))
- specializers))
- (setq unparsed specializers
- parsed ()))
- (list :early-method ;This is an early method dammit!
-
- (getf initargs ':function)
- (getf initargs ':fast-function)
-
- parsed ;The parsed specializers. This is used
- ;by early-method-specializers to cache
- ;the parse. Note that this only comes
- ;into play when there is more than one
- ;early method on an early gf.
-
- (list class ;A list to which real-make-a-method
- qualifiers ;can be applied to make a real method
- arglist ;corresponding to this early one.
- unparsed
- initargs
- doc
- slot-name))))
+ (if (every (lambda (s) (not (symbolp s))) specializers)
+ (setq parsed specializers
+ unparsed (mapcar (lambda (s)
+ (if (eq s t) t (class-name s)))
+ specializers))
+ (setq unparsed specializers
+ parsed ()))
+ (list :early-method ;This is an early method dammit!
+
+ (getf initargs :function)
+ (getf initargs :fast-function)
+
+ parsed ;The parsed specializers. This is used
+ ;by early-method-specializers to cache
+ ;the parse. Note that this only comes
+ ;into play when there is more than one
+ ;early method on an early gf.
+
+ (list class ;A list to which real-make-a-method
+ qualifiers ;can be applied to make a real method
+ arglist ;corresponding to this early one.
+ unparsed
+ initargs
+ doc
+ slot-name))))
(defun real-make-a-method
(class qualifiers lambda-list specializers initargs doc
- &optional slot-name)
+ &optional slot-name)
(setq specializers (parse-specializers specializers))
(apply #'make-instance class
- :qualifiers qualifiers
- :lambda-list lambda-list
- :specializers specializers
- :documentation doc
- :slot-name slot-name
- :allow-other-keys t
- initargs))
+ :qualifiers qualifiers
+ :lambda-list lambda-list
+ :specializers specializers
+ :documentation doc
+ :slot-name slot-name
+ :allow-other-keys t
+ initargs))
(defun early-method-function (early-method)
(values (cadr early-method) (caddr early-method)))
(defun early-method-standard-accessor-p (early-method)
(let ((class (first (fifth early-method))))
(or (eq class 'standard-reader-method)
- (eq class 'standard-writer-method)
- (eq class 'standard-boundp-method))))
+ (eq class 'standard-writer-method)
+ (eq class 'standard-boundp-method))))
(defun early-method-standard-accessor-slot-name (early-method)
(seventh (fifth early-method)))
-;;; Fetch the specializers of an early method. This is basically just a
-;;; simple accessor except that when the second argument is t, this converts
-;;; the specializers from symbols into class objects. The class objects
-;;; are cached in the early method, this makes bootstrapping faster because
-;;; the class objects only have to be computed once.
+;;; Fetch the specializers of an early method. This is basically just
+;;; a simple accessor except that when the second argument is t, this
+;;; converts the specializers from symbols into class objects. The
+;;; class objects are cached in the early method, this makes
+;;; bootstrapping faster because the class objects only have to be
+;;; computed once.
+;;;
;;; NOTE:
-;;; the second argument should only be passed as T by early-lookup-method.
-;;; this is to implement the rule that only when there is more than one
-;;; early method on a generic function is the conversion from class names
-;;; to class objects done.
-;;; the corresponds to the fact that we are only allowed to have one method
-;;; on any generic function up until the time classes exist.
+;;; The second argument should only be passed as T by
+;;; early-lookup-method. This is to implement the rule that only when
+;;; there is more than one early method on a generic function is the
+;;; conversion from class names to class objects done. This
+;;; corresponds to the fact that we are only allowed to have one
+;;; method on any generic function up until the time classes exist.
(defun early-method-specializers (early-method &optional objectsp)
(if (and (listp early-method)
- (eq (car early-method) :early-method))
- (cond ((eq objectsp 't)
- (or (fourth early-method)
- (setf (fourth early-method)
- (mapcar #'find-class (cadddr (fifth early-method))))))
- (t
- (cadddr (fifth early-method))))
+ (eq (car early-method) :early-method))
+ (cond ((eq objectsp t)
+ (or (fourth early-method)
+ (setf (fourth early-method)
+ (mapcar #'find-class (cadddr (fifth early-method))))))
+ (t
+ (cadddr (fifth early-method))))
(error "~S is not an early-method." early-method)))
(defun early-method-qualifiers (early-method)
(caddr (fifth early-method)))
(defun early-add-named-method (generic-function-name
- qualifiers
- specializers
- arglist
- &rest initargs)
+ qualifiers
+ specializers
+ arglist
+ &rest initargs)
(let* ((gf (ensure-generic-function generic-function-name))
- (existing
- (dolist (m (early-gf-methods gf))
- (when (and (equal (early-method-specializers m) specializers)
- (equal (early-method-qualifiers m) qualifiers))
- (return m))))
- (new (make-a-method 'standard-method
- qualifiers
- arglist
- specializers
- initargs
- ())))
+ (existing
+ (dolist (m (early-gf-methods gf))
+ (when (and (equal (early-method-specializers m) specializers)
+ (equal (early-method-qualifiers m) qualifiers))
+ (return m))))
+ (new (make-a-method 'standard-method
+ qualifiers
+ arglist
+ specializers
+ initargs
+ ())))
(when existing (remove-method gf existing))
(add-method gf new)))
-;;; This is the early version of add-method. Later this will become a
-;;; generic function. See fix-early-generic-functions which has special
-;;; knowledge about add-method.
+;;; This is the early version of ADD-METHOD. Later this will become a
+;;; generic function. See !FIX-EARLY-GENERIC-FUNCTIONS which has
+;;; special knowledge about ADD-METHOD.
(defun add-method (generic-function method)
(when (not (fsc-instance-p generic-function))
- (error "Early add-method didn't get a funcallable instance."))
+ (error "Early ADD-METHOD didn't get a funcallable instance."))
(when (not (and (listp method) (eq (car method) :early-method)))
- (error "Early add-method didn't get an early method."))
+ (error "Early ADD-METHOD didn't get an early method."))
(push method (early-gf-methods generic-function))
(set-arg-info generic-function :new-method method)
- (unless (assoc (early-gf-name generic-function) *generic-function-fixups*
- :test #'equal)
+ (unless (assoc (!early-gf-name generic-function)
+ *!generic-function-fixups*
+ :test #'equal)
(update-dfun generic-function)))
-;;; This is the early version of REMOVE-METHOD..
+;;; This is the early version of REMOVE-METHOD. See comments on
+;;; the early version of ADD-METHOD.
(defun remove-method (generic-function method)
(when (not (fsc-instance-p generic-function))
(error "An early remove-method didn't get a funcallable instance."))
(when (not (and (listp method) (eq (car method) :early-method)))
(error "An early remove-method didn't get an early method."))
(setf (early-gf-methods generic-function)
- (remove method (early-gf-methods generic-function)))
+ (remove method (early-gf-methods generic-function)))
(set-arg-info generic-function)
- (unless (assoc (early-gf-name generic-function) *generic-function-fixups*
- :test #'equal)
+ (unless (assoc (!early-gf-name generic-function)
+ *!generic-function-fixups*
+ :test #'equal)
(update-dfun generic-function)))
-;;; ..and the early version of GET-METHOD.
+;;; This is the early version of GET-METHOD. See comments on the early
+;;; version of ADD-METHOD.
(defun get-method (generic-function qualifiers specializers
- &optional (errorp t))
+ &optional (errorp t))
(if (early-gf-p generic-function)
(or (dolist (m (early-gf-methods generic-function))
- (when (and (or (equal (early-method-specializers m nil)
- specializers)
- (equal (early-method-specializers m 't)
- specializers))
- (equal (early-method-qualifiers m) qualifiers))
- (return m)))
- (if errorp
- (error "can't get early method")
- nil))
+ (when (and (or (equal (early-method-specializers m nil)
+ specializers)
+ (equal (early-method-specializers m t)
+ specializers))
+ (equal (early-method-qualifiers m) qualifiers))
+ (return m)))
+ (if errorp
+ (error "can't get early method")
+ nil))
(real-get-method generic-function qualifiers specializers errorp)))
-(defvar *fegf-debug-p* nil)
-
-(defun fix-early-generic-functions (&optional (noisyp *fegf-debug-p*))
+(defun !fix-early-generic-functions ()
(let ((accessors nil))
- ;; Rearrange *EARLY-GENERIC-FUNCTIONS* to speed up
+ ;; Rearrange *!EARLY-GENERIC-FUNCTIONS* to speed up
;; FIX-EARLY-GENERIC-FUNCTIONS.
- (dolist (early-gf-spec *early-generic-functions*)
+ (dolist (early-gf-spec *!early-generic-functions*)
(when (every #'early-method-standard-accessor-p
- (early-gf-methods (gdefinition early-gf-spec)))
- (push early-gf-spec accessors)))
+ (early-gf-methods (gdefinition early-gf-spec)))
+ (push early-gf-spec accessors)))
(dolist (spec (nconc accessors
- '(accessor-method-slot-name
- generic-function-methods
- method-specializers
- specializerp
- specializer-type
- specializer-class
- slot-definition-location
- slot-definition-name
- class-slots
- gf-arg-info
- class-precedence-list
- slot-boundp-using-class
- (setf slot-value-using-class)
- slot-value-using-class
- structure-class-p
- standard-class-p
- funcallable-standard-class-p
- specializerp)))
- (setq *early-generic-functions*
- (cons spec (delete spec *early-generic-functions* :test #'equal))))
-
- (dolist (early-gf-spec *early-generic-functions*)
- (when noisyp (format t "~&~S..." early-gf-spec))
+ '(accessor-method-slot-name
+ generic-function-methods
+ method-specializers
+ specializerp
+ specializer-type
+ specializer-class
+ slot-definition-location
+ slot-definition-name
+ class-slots
+ gf-arg-info
+ class-precedence-list
+ slot-boundp-using-class
+ (setf slot-value-using-class)
+ slot-value-using-class
+ structure-class-p
+ standard-class-p
+ funcallable-standard-class-p
+ specializerp)))
+ (/show spec)
+ (setq *!early-generic-functions*
+ (cons spec
+ (delete spec *!early-generic-functions* :test #'equal))))
+
+ (dolist (early-gf-spec *!early-generic-functions*)
+ (/show early-gf-spec)
(let* ((gf (gdefinition early-gf-spec))
- (methods (mapcar #'(lambda (early-method)
- (let ((args (copy-list (fifth
- early-method))))
- (setf (fourth args)
- (early-method-specializers
- early-method t))
- (apply #'real-make-a-method args)))
- (early-gf-methods gf))))
- (setf (generic-function-method-class gf) *the-class-standard-method*)
- (setf (generic-function-method-combination gf)
- *standard-method-combination*)
- (set-methods gf methods)))
-
- (dolist (fns *early-functions*)
- (setf (gdefinition (car fns)) (symbol-function (caddr fns))))
-
- (dolist (fixup *generic-function-fixups*)
+ (methods (mapcar (lambda (early-method)
+ (let ((args (copy-list (fifth
+ early-method))))
+ (setf (fourth args)
+ (early-method-specializers
+ early-method t))
+ (apply #'real-make-a-method args)))
+ (early-gf-methods gf))))
+ (setf (generic-function-method-class gf) *the-class-standard-method*)
+ (setf (generic-function-method-combination gf)
+ *standard-method-combination*)
+ (set-methods gf methods)))
+
+ (dolist (fn *!early-functions*)
+ (/show fn)
+ (setf (gdefinition (car fn)) (fdefinition (caddr fn))))
+
+ (dolist (fixup *!generic-function-fixups*)
+ (/show fixup)
(let* ((fspec (car fixup))
- (gf (gdefinition fspec))
- (methods (mapcar #'(lambda (method)
- (let* ((lambda-list (first method))
- (specializers (second method))
- (method-fn-name (third method))
- (fn-name (or method-fn-name fspec))
- (fn (symbol-function fn-name))
- (initargs
- (list :function
- (set-function-name
- #'(lambda (args next-methods)
- (declare (ignore
- next-methods))
- (apply fn args))
- `(call ,fn-name)))))
- (declare (type function fn))
- (make-a-method 'standard-method
- ()
- lambda-list
- specializers
- initargs
- nil)))
- (cdr fixup))))
- (setf (generic-function-method-class gf) *the-class-standard-method*)
- (setf (generic-function-method-combination gf)
- *standard-method-combination*)
- (set-methods gf methods)))))
+ (gf (gdefinition fspec))
+ (methods (mapcar (lambda (method)
+ (let* ((lambda-list (first method))
+ (specializers (second method))
+ (method-fn-name (third method))
+ (fn-name (or method-fn-name fspec))
+ (fn (fdefinition fn-name))
+ (initargs
+ (list :function
+ (set-fun-name
+ (lambda (args next-methods)
+ (declare (ignore
+ next-methods))
+ (apply fn args))
+ `(call ,fn-name)))))
+ (declare (type function fn))
+ (make-a-method 'standard-method
+ ()
+ lambda-list
+ specializers
+ initargs
+ nil)))
+ (cdr fixup))))
+ (setf (generic-function-method-class gf) *the-class-standard-method*)
+ (setf (generic-function-method-combination gf)
+ *standard-method-combination*)
+ (set-methods gf methods))))
+ (/show "leaving !FIX-EARLY-GENERIC-FUNCTIONS"))
\f
-;;; PARSE-DEFMETHOD is used by DEFMETHOD to parse the &REST argument into
-;;; the 'real' arguments. This is where the syntax of DEFMETHOD is really
-;;; implemented.
+;;; PARSE-DEFMETHOD is used by DEFMETHOD to parse the &REST argument
+;;; into the 'real' arguments. This is where the syntax of DEFMETHOD
+;;; is really implemented.
(defun parse-defmethod (cdr-of-form)
- ;;(declare (values name qualifiers specialized-lambda-list body))
+ (declare (list cdr-of-form))
(let ((name (pop cdr-of-form))
- (qualifiers ())
- (spec-ll ()))
+ (qualifiers ())
+ (spec-ll ()))
(loop (if (and (car cdr-of-form) (atom (car cdr-of-form)))
- (push (pop cdr-of-form) qualifiers)
- (return (setq qualifiers (nreverse qualifiers)))))
+ (push (pop cdr-of-form) qualifiers)
+ (return (setq qualifiers (nreverse qualifiers)))))
(setq spec-ll (pop cdr-of-form))
(values name qualifiers spec-ll cdr-of-form)))
(defun parse-specializers (specializers)
+ (declare (list specializers))
(flet ((parse (spec)
- (let ((result (specializer-from-type spec)))
- (if (specializerp result)
- result
- (if (symbolp spec)
- (error "~S was used as a specializer,~%~
- but is not the name of a class."
- spec)
- (error "~S is not a legal specializer." spec))))))
+ (let ((result (specializer-from-type spec)))
+ (if (specializerp result)
+ result
+ (if (symbolp spec)
+ (error "~S was used as a specializer,~%~
+ but is not the name of a class."
+ spec)
+ (error "~S is not a legal specializer." spec))))))
(mapcar #'parse specializers)))
(defun unparse-specializers (specializers-or-method)
(if (listp specializers-or-method)
(flet ((unparse (spec)
- (if (specializerp spec)
- (let ((type (specializer-type spec)))
- (if (and (consp type)
- (eq (car type) 'class))
- (let* ((class (cadr type))
- (class-name (class-name class)))
- (if (eq class (find-class class-name nil))
- class-name
- type))
- type))
- (error "~S is not a legal specializer." spec))))
- (mapcar #'unparse specializers-or-method))
+ (if (specializerp spec)
+ (let ((type (specializer-type spec)))
+ (if (and (consp type)
+ (eq (car type) 'class))
+ (let* ((class (cadr type))
+ (class-name (class-name class)))
+ (if (eq class (find-class class-name nil))
+ class-name
+ type))
+ type))
+ (error "~S is not a legal specializer." spec))))
+ (mapcar #'unparse specializers-or-method))
(unparse-specializers (method-specializers specializers-or-method))))
(defun parse-method-or-spec (spec &optional (errorp t))
- ;;(declare (values generic-function method method-name))
(let (gf method name temp)
- (if (method-p spec)
- (setq method spec
- gf (method-generic-function method)
- temp (and gf (generic-function-name gf))
- name (if temp
- (intern-function-name
- (make-method-spec temp
- (method-qualifiers method)
- (unparse-specializers
- (method-specializers method))))
- (make-symbol (format nil "~S" method))))
- (multiple-value-bind (gf-spec quals specls)
- (parse-defmethod spec)
- (and (setq gf (and (or errorp (gboundp gf-spec))
- (gdefinition gf-spec)))
- (let ((nreq (compute-discriminating-function-arglist-info gf)))
- (setq specls (append (parse-specializers specls)
- (make-list (- nreq (length specls))
- :initial-element
- *the-class-t*)))
- (and
- (setq method (get-method gf quals specls errorp))
- (setq name
- (intern-function-name (make-method-spec gf-spec
- quals
- specls))))))))
+ (if (method-p spec)
+ (setq method spec
+ gf (method-generic-function method)
+ temp (and gf (generic-function-name gf))
+ name (if temp
+ (make-method-spec temp
+ (method-qualifiers method)
+ (unparse-specializers
+ (method-specializers method)))
+ (make-symbol (format nil "~S" method))))
+ (multiple-value-bind (gf-spec quals specls)
+ (parse-defmethod spec)
+ (and (setq gf (and (or errorp (gboundp gf-spec))
+ (gdefinition gf-spec)))
+ (let ((nreq (compute-discriminating-function-arglist-info gf)))
+ (setq specls (append (parse-specializers specls)
+ (make-list (- nreq (length specls))
+ :initial-element
+ *the-class-t*)))
+ (and
+ (setq method (get-method gf quals specls errorp))
+ (setq name
+ (make-method-spec
+ gf-spec quals (unparse-specializers specls))))))))
(values gf method name)))
\f
(defun extract-parameters (specialized-lambda-list)
(declare (ignore ignore1 ignore2 ignore3))
required-parameters))
-(defun parse-specialized-lambda-list (arglist &optional post-keyword)
- ;;(declare (values parameters lambda-list specializers required-parameters))
+(define-condition specialized-lambda-list-error
+ (reference-condition simple-program-error)
+ ()
+ (:default-initargs :references (list '(:ansi-cl :section (3 4 3)))))
+
+(defun parse-specialized-lambda-list
+ (arglist
+ &optional supplied-keywords (allowed-keywords '(&optional &rest &key &aux))
+ &aux (specialized-lambda-list-keywords
+ '(&optional &rest &key &allow-other-keys &aux)))
(let ((arg (car arglist)))
(cond ((null arglist) (values nil nil nil nil))
- ((eq arg '&aux)
- (values nil arglist nil))
- ((memq arg lambda-list-keywords)
- (unless (memq arg '(&optional &rest &key &allow-other-keys &aux))
- ;; Warn about non-standard lambda-list-keywords, but then
- ;; go on to treat them like a standard lambda-list-keyword
- ;; what with the warning its probably ok.
- ;;
- ;; FIXME: This shouldn't happen now that this is maintained
- ;; as part of SBCL, should it? Perhaps this is now
- ;; "internal error: unrecognized lambda-list keyword ~S"?
- (warn "Unrecognized lambda-list keyword ~S in arglist.~%~
- Assuming that the symbols following it are parameters,~%~
- and not allowing any parameter specializers to follow~%~
- to follow it."
- arg))
- ;; When we are at a lambda-list keyword, the parameters don't
- ;; include the lambda-list keyword; the lambda-list does include
- ;; the lambda-list keyword; and no specializers are allowed to
- ;; follow the lambda-list keywords (at least for now).
- (multiple-value-bind (parameters lambda-list)
- (parse-specialized-lambda-list (cdr arglist) t)
- (values parameters
- (cons arg lambda-list)
- ()
- ())))
- (post-keyword
- ;; After a lambda-list keyword there can be no specializers.
- (multiple-value-bind (parameters lambda-list)
- (parse-specialized-lambda-list (cdr arglist) t)
- (values (cons (if (listp arg) (car arg) arg) parameters)
- (cons arg lambda-list)
- ()
- ())))
- (t
- (multiple-value-bind (parameters lambda-list specializers required)
- (parse-specialized-lambda-list (cdr arglist))
- (values (cons (if (listp arg) (car arg) arg) parameters)
- (cons (if (listp arg) (car arg) arg) lambda-list)
- (cons (if (listp arg) (cadr arg) 't) specializers)
- (cons (if (listp arg) (car arg) arg) required)))))))
+ ((eq arg '&aux)
+ (values nil arglist nil nil))
+ ((memq arg lambda-list-keywords)
+ ;; non-standard lambda-list-keywords are errors.
+ (unless (memq arg specialized-lambda-list-keywords)
+ (error 'specialized-lambda-list-error
+ :format-control "unknown specialized-lambda-list ~
+ keyword ~S~%"
+ :format-arguments (list arg)))
+ ;; no multiple &rest x &rest bla specifying
+ (when (memq arg supplied-keywords)
+ (error 'specialized-lambda-list-error
+ :format-control "multiple occurrence of ~
+ specialized-lambda-list keyword ~S~%"
+ :format-arguments (list arg)))
+ ;; And no placing &key in front of &optional, either.
+ (unless (memq arg allowed-keywords)
+ (error 'specialized-lambda-list-error
+ :format-control "misplaced specialized-lambda-list ~
+ keyword ~S~%"
+ :format-arguments (list arg)))
+ ;; When we are at a lambda-list keyword, the parameters
+ ;; don't include the lambda-list keyword; the lambda-list
+ ;; does include the lambda-list keyword; and no
+ ;; specializers are allowed to follow the lambda-list
+ ;; keywords (at least for now).
+ (multiple-value-bind (parameters lambda-list)
+ (parse-specialized-lambda-list (cdr arglist)
+ (cons arg supplied-keywords)
+ (if (eq arg '&key)
+ (cons '&allow-other-keys
+ (cdr (member arg allowed-keywords)))
+ (cdr (member arg allowed-keywords))))
+ (when (and (eq arg '&rest)
+ (or (null lambda-list)
+ (memq (car lambda-list)
+ specialized-lambda-list-keywords)
+ (not (or (null (cadr lambda-list))
+ (memq (cadr lambda-list)
+ specialized-lambda-list-keywords)))))
+ (error 'specialized-lambda-list-error
+ :format-control
+ "in a specialized-lambda-list, excactly one ~
+ variable must follow &REST.~%"
+ :format-arguments nil))
+ (values parameters
+ (cons arg lambda-list)
+ ()
+ ())))
+ (supplied-keywords
+ ;; After a lambda-list keyword there can be no specializers.
+ (multiple-value-bind (parameters lambda-list)
+ (parse-specialized-lambda-list (cdr arglist)
+ supplied-keywords
+ allowed-keywords)
+ (values (cons (if (listp arg) (car arg) arg) parameters)
+ (cons arg lambda-list)
+ ()
+ ())))
+ (t
+ (multiple-value-bind (parameters lambda-list specializers required)
+ (parse-specialized-lambda-list (cdr arglist))
+ (values (cons (if (listp arg) (car arg) arg) parameters)
+ (cons (if (listp arg) (car arg) arg) lambda-list)
+ (cons (if (listp arg) (cadr arg) t) specializers)
+ (cons (if (listp arg) (car arg) arg) required)))))))
\f
-(eval-when (:load-toplevel :execute)
- (setq *boot-state* 'early))
+(setq *boot-state* 'early)
\f
-;;; FIXME: In here there was a #-CMU definition of SYMBOL-MACROLET which used
-;;; %WALKER stuff. That suggests to me that maybe the code walker stuff was
-;;; only used for implementing stuff like that; maybe it's not needed any more?
-;;; Hunt down what it was used for and see.
+;;; FIXME: In here there was a #-CMU definition of SYMBOL-MACROLET
+;;; which used %WALKER stuff. That suggests to me that maybe the code
+;;; walker stuff was only used for implementing stuff like that; maybe
+;;; it's not needed any more? Hunt down what it was used for and see.
(defmacro with-slots (slots instance &body body)
(let ((in (gensym)))
`(let ((,in ,instance))
(declare (ignorable ,in))
,@(let ((instance (if (and (consp instance) (eq (car instance) 'the))
- (third instance)
- instance)))
- (and (symbolp instance)
- `((declare (variable-rebinding ,in ,instance)))))
+ (third instance)
+ instance)))
+ (and (symbolp instance)
+ `((declare (%variable-rebinding ,in ,instance)))))
,in
- (symbol-macrolet ,(mapcar #'(lambda (slot-entry)
- (let ((variable-name
- (if (symbolp slot-entry)
- slot-entry
- (car slot-entry)))
- (slot-name
- (if (symbolp slot-entry)
- slot-entry
- (cadr slot-entry))))
- `(,variable-name
- (slot-value ,in ',slot-name))))
- slots)
- ,@body))))
+ (symbol-macrolet ,(mapcar (lambda (slot-entry)
+ (let ((var-name
+ (if (symbolp slot-entry)
+ slot-entry
+ (car slot-entry)))
+ (slot-name
+ (if (symbolp slot-entry)
+ slot-entry
+ (cadr slot-entry))))
+ `(,var-name
+ (slot-value ,in ',slot-name))))
+ slots)
+ ,@body))))
(defmacro with-accessors (slots instance &body body)
(let ((in (gensym)))
`(let ((,in ,instance))
(declare (ignorable ,in))
,@(let ((instance (if (and (consp instance) (eq (car instance) 'the))
- (third instance)
- instance)))
- (and (symbolp instance)
- `((declare (variable-rebinding ,in ,instance)))))
+ (third instance)
+ instance)))
+ (and (symbolp instance)
+ `((declare (%variable-rebinding ,in ,instance)))))
,in
- (symbol-macrolet ,(mapcar #'(lambda (slot-entry)
- (let ((variable-name (car slot-entry))
- (accessor-name (cadr slot-entry)))
- `(,variable-name
- (,accessor-name ,in))))
- slots)
- ,@body))))
+ (symbol-macrolet ,(mapcar (lambda (slot-entry)
+ (let ((var-name (car slot-entry))
+ (accessor-name (cadr slot-entry)))
+ `(,var-name (,accessor-name ,in))))
+ slots)
+ ,@body))))
projects / sbcl.git / blobdiff