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- ;;;-*-Mode:LISP; Package:(PCL LISP 1000); Base:10; Syntax:Common-lisp -*-
- ;;;
- ;;; *************************************************************************
- ;;; Copyright (c) 1985, 1986, 1987, 1988, 1989, 1990 Xerox Corporation.
- ;;; All rights reserved.
- ;;;
- ;;; Use and copying of this software and preparation of derivative works
- ;;; based upon this software are permitted. Any distribution of this
- ;;; software or derivative works must comply with all applicable United
- ;;; States export control laws.
- ;;;
- ;;; This software is made available AS IS, and Xerox Corporation makes no
- ;;; warranty about the software, its performance or its conformity to any
- ;;; specification.
- ;;;
- ;;; Any person obtaining a copy of this software is requested to send their
- ;;; name and post office or electronic mail address to:
- ;;; CommonLoops Coordinator
- ;;; Xerox PARC
- ;;; 3333 Coyote Hill Rd.
- ;;; Palo Alto, CA 94304
- ;;; (or send Arpanet mail to CommonLoops-Coordinator.pa@Xerox.arpa)
- ;;;
- ;;; Suggestions, comments and requests for improvements are also welcome.
- ;;; *************************************************************************
- ;;;
-
- (in-package :pcl)
-
- (eval-when (compile load eval)
-
- (defvar *defclass-times* '(load eval)) ;Probably have to change this
- ;if you use defconstructor.
- (defvar *defmethod-times* '(load eval))
- (defvar *defgeneric-times* '(load eval))
-
- (defvar *boot-state* ()) ;NIL
- ;EARLY
- ;BRAID
- ;COMPLETE
- (defvar *fegf-started-p* nil)
-
-
- )
-
- (eval-when (load eval)
- (when (eq *boot-state* 'complete)
- (error "Trying to load (or compile) PCL in an environment in which it~%~
- has already been loaded. This doesn't work, you will have to~%~
- get a fresh lisp (reboot) and then load PCL."))
- (when *boot-state*
- (cerror "Try loading (or compiling) PCL anyways."
- "Trying to load (or compile) PCL in an environment in which it~%~
- has already been partially loaded. This may not work, you may~%~
- need to get a fresh lisp (reboot) and then load PCL."))
- )
-
-
-
- ;;;
- ;;; This is like fdefinition on the Lispm. If Common Lisp had something like
- ;;; function specs I wouldn't need this. On the other hand, I don't like the
- ;;; way this really works so maybe function specs aren't really right either?
- ;;;
- ;;; I also don't understand the real implications of a Lisp-1 on this sort of
- ;;; thing. Certainly some of the lossage in all of this is because these
- ;;; SPECs name global definitions.
- ;;;
- ;;; Note that this implementation is set up so that an implementation which
- ;;; has a 'real' function spec mechanism can use that instead and in that way
- ;;; get rid of setf generic function names.
- ;;;
- (defmacro parse-gspec (spec
- (non-setf-var . non-setf-case)
- (setf-var . setf-case))
- (declare (indentation 1 1))
- (once-only (spec)
- `(cond (#-setf (symbolp ,spec) #+setf t
- (let ((,non-setf-var ,spec)) ,@non-setf-case))
- #-setf
- ((and (listp ,spec)
- (eq (car ,spec) 'setf)
- (symbolp (cadr ,spec)))
- (let ((,setf-var (cadr ,spec))) ,@setf-case))
- #-setf
- (t
- (error
- "Can't understand ~S as a generic function specifier.~%~
- It must be either a symbol which can name a function or~%~
- a list like ~S, where the car is the symbol ~S and the cadr~%~
- is a symbol which can name a generic function."
- ,spec '(setf <foo>) 'setf)))))
-
- ;;;
- ;;; If symbol names a function which is traced or advised, return the
- ;;; unadvised, traced etc. definition. This lets me get at the generic
- ;;; function object even when it is traced.
- ;;;
- (defun unencapsulated-fdefinition (symbol)
- #+Lispm (si:fdefinition (si:unencapsulate-function-spec symbol))
- #+Lucid (lucid::get-unadvised-procedure (symbol-function symbol))
- #+excl (or (excl::encapsulated-basic-definition symbol)
- (symbol-function symbol))
- #+xerox (il:virginfn symbol)
- #+setf (fdefinition symbol)
- #+kcl (symbol-function
- (let ((sym (get symbol 'si::traced)) first-form)
- (if (and sym
- (consp (symbol-function symbol))
- (consp (setq first-form (nth 3 (symbol-function symbol))))
- (eq (car first-form) 'si::trace-call))
- sym
- symbol)))
- #-(or Lispm Lucid excl Xerox setf kcl) (symbol-function symbol))
-
- ;;;
- ;;; If symbol names a function which is traced or advised, redefine
- ;;; the `real' definition without affecting the advise.
- ;;;
- (defun fdefine-carefully (name new-definition)
- #+Lispm (si:fdefine name new-definition t t)
- #+Lucid (let ((lucid::*redefinition-action* nil))
- (setf (symbol-function name) new-definition))
- #+excl (setf (symbol-function name) new-definition)
- #+xerox (let ((advisedp (member name il:advisedfns :test #'eq))
- (brokenp (member name il:brokenfns :test #'eq)))
- ;; In XeroxLisp (late of envos) tracing is implemented
- ;; as a special case of "breaking". Advising, however,
- ;; is treated specially.
- (xcl:unadvise-function name :no-error t)
- (xcl:unbreak-function name :no-error t)
- (setf (symbol-function name) new-definition)
- (when brokenp (xcl:rebreak-function name))
- (when advisedp (xcl:readvise-function name)))
- #+(and setf (not cmu)) (setf (fdefinition name) new-definition)
- #+kcl (setf (symbol-function
- (let ((sym (get name 'si::traced)) first-form)
- (if (and sym
- (consp (symbol-function name))
- (consp (setq first-form
- (nth 3 (symbol-function name))))
- (eq (car first-form) 'si::trace-call))
- sym
- name)))
- new-definition)
- #+cmu (progn
- (c::%%defun name new-definition nil)
- (c::note-name-defined name :function)
- new-definition)
- #-(or Lispm Lucid excl Xerox setf kcl cmu)
- (setf (symbol-function name) new-definition))
-
- (defun gboundp (spec)
- (parse-gspec spec
- (name (fboundp name))
- (name (fboundp (get-setf-function-name name)))))
-
- (defun gmakunbound (spec)
- (parse-gspec spec
- (name (fmakunbound name))
- (name (fmakunbound (get-setf-function-name name)))))
-
- (defun gdefinition (spec)
- (parse-gspec spec
- (name (or #-setf (macro-function name) ;??
- (unencapsulated-fdefinition name)))
- (name (unencapsulated-fdefinition (get-setf-function-name name)))))
-
- (defun #-setf SETF\ PCL\ GDEFINITION #+setf (setf gdefinition) (new-value spec)
- (parse-gspec spec
- (name (fdefine-carefully name new-value))
- (name (fdefine-carefully (get-setf-function-name name) new-value))))
-
-
- (proclaim '(special *the-class-t*
- *the-class-vector* *the-class-symbol*
- *the-class-string* *the-class-sequence*
- *the-class-rational* *the-class-ratio*
- *the-class-number* *the-class-null* *the-class-list*
- *the-class-integer* *the-class-float* *the-class-cons*
- *the-class-complex* *the-class-character*
- *the-class-bit-vector* *the-class-array*
-
- *the-class-slot-object*
- *the-class-standard-object*
- *the-class-structure-object*
- *the-class-class*
- *the-class-generic-function*
- *the-class-built-in-class*
- *the-class-slot-class*
- *the-class-structure-class*
- *the-class-standard-class*
- *the-class-funcallable-standard-class*
- *the-class-method*
- *the-class-standard-method*
- *the-class-standard-reader-method*
- *the-class-standard-writer-method*
- *the-class-standard-boundp-method*
- *the-class-standard-generic-function*
- *the-class-standard-effective-slot-definition*
-
- *the-eslotd-standard-class-slots*
- *the-eslotd-funcallable-standard-class-slots*))
-
- (proclaim '(special *the-wrapper-of-t*
- *the-wrapper-of-vector* *the-wrapper-of-symbol*
- *the-wrapper-of-string* *the-wrapper-of-sequence*
- *the-wrapper-of-rational* *the-wrapper-of-ratio*
- *the-wrapper-of-number* *the-wrapper-of-null*
- *the-wrapper-of-list* *the-wrapper-of-integer*
- *the-wrapper-of-float* *the-wrapper-of-cons*
- *the-wrapper-of-complex* *the-wrapper-of-character*
- *the-wrapper-of-bit-vector* *the-wrapper-of-array*))
-
- (defun coerce-to-class (class &optional make-forward-referenced-class-p)
- (if (symbolp class)
- (or (find-class class (not make-forward-referenced-class-p))
- (ensure-class class))
- class))
-
- (defun specializer-from-type (type &aux args)
- (when (consp type)
- (setq args (cdr type) type (car type)))
- (cond ((symbolp type)
- (or (and (null args) (find-class type))
- (ecase type
- (class (coerce-to-class (car args)))
- (prototype (make-instance 'class-prototype-specializer
- :object (coerce-to-class (car args))))
- (class-eq (class-eq-specializer (coerce-to-class (car args))))
- (eql (intern-eql-specializer (car args))))))
- ((specializerp type) type)))
-
- (defun type-from-specializer (specl)
- (cond ((eq specl 't)
- 't)
- ((consp specl)
- (unless (member (car specl) '(class prototype class-eq eql))
- (error "~S is not a legal specializer type" specl))
- specl)
- ((progn
- (when (symbolp specl)
- ;;maybe (or (find-class specl nil) (ensure-class specl)) instead?
- (setq specl (find-class specl)))
- (or (not (eq *boot-state* 'complete))
- (specializerp specl)))
- (specializer-type specl))
- (t
- (error "~s is neither a type nor a specializer" specl))))
-
- (defun type-class (type)
- (declare (special *the-class-t*))
- (setq type (type-from-specializer type))
- (if (atom type)
- (if (eq type 't)
- *the-class-t*
- (error "bad argument to type-class"))
- (case (car type)
- (eql (class-of (cadr type)))
- (prototype (class-of (cadr type))) ;?
- (class-eq (cadr type))
- (class (cadr type)))))
-
- (defun class-eq-type (class)
- (specializer-type (class-eq-specializer class)))
-
- (defun inform-type-system-about-std-class (name)
- (let ((predicate-name (make-type-predicate-name name)))
- (setf (gdefinition predicate-name) (make-type-predicate name))
- (do-satisfies-deftype name predicate-name)))
-
- (defun make-type-predicate (name)
- (let ((cell (find-class-cell name)))
- #'(lambda (x)
- (funcall (the function (find-class-cell-predicate cell)) x))))
-
-
- ;This stuff isn't right. Good thing it isn't used.
- ;The satisfies predicate has to be a symbol. There is no way to
- ;construct such a symbol from a class object if class names change.
- (defun class-predicate (class)
- (when (symbolp class) (setq class (find-class class)))
- #'(lambda (object) (memq class (class-precedence-list (class-of object)))))
-
- (defun make-class-eq-predicate (class)
- (when (symbolp class) (setq class (find-class class)))
- #'(lambda (object) (eq class (class-of object))))
-
- (defun make-eql-predicate (eql-object)
- #'(lambda (object) (eql eql-object object)))
-
- #|| ; The argument to satisfies must be a symbol.
- (deftype class (&optional class)
- (if class
- `(satisfies ,(class-predicate class))
- `(satisfies ,(class-predicate 'class))))
-
- (deftype class-eq (class)
- `(satisfies ,(make-class-eq-predicate class)))
- ||#
-
- #-excl
- (deftype eql (type-object)
- `(member ,type-object))
-
-
-
- ;;;
- ;;; These functions are a pale imitiation of their namesake. They accept
- ;;; class objects or types where they should.
- ;;;
- (defun *normalize-type (type)
- (cond ((consp type)
- (if (member (car type) '(not and or))
- `(,(car type) ,@(mapcar #'*normalize-type (cdr type)))
- (if (null (cdr type))
- (*normalize-type (car type))
- type)))
- ((symbolp type)
- (let ((class (find-class type nil)))
- (if class
- (let ((type (specializer-type class)))
- (if (listp type) type `(,type)))
- `(,type))))
- ((or (not (eq *boot-state* 'complete))
- (specializerp type))
- (specializer-type type))
- (t
- (error "~s is not a type" type))))
-
- (defun unparse-type-list (tlist)
- (mapcar #'unparse-type tlist))
-
- (defun unparse-type (type)
- (if (atom type)
- (if (specializerp type)
- (unparse-type (specializer-type type))
- type)
- (case (car type)
- (eql type)
- (class-eq `(class-eq ,(class-name (cadr type))))
- (class (class-name (cadr type)))
- (t `(,(car type) ,@(unparse-type-list (cdr type)))))))
-
- (defun convert-to-system-type (type)
- (case (car type)
- ((not and or) `(,(car type) ,@(mapcar #'convert-to-system-type (cdr type))))
- (class (class-name (cadr type))) ; it had better be a named class
- (class-eq (class-name (cadr type))) ; this one is impossible to do right
- (eql type)
- (t (if (null (cdr type))
- (car type)
- type))))
-
- (defun *typep (object type)
- (setq type (*normalize-type type))
- (cond ((member (car type) '(eql wrapper-eq class-eq class))
- (specializer-applicable-using-type-p type `(eql ,object)))
- ((eq (car type) 'not)
- (not (*typep object (cadr type))))
- (t
- (typep object (convert-to-system-type type)))))
-
- ;Writing the missing NOT and AND clauses will improve
- ;the quality of code generated by generate-discrimination-net, but
- ;calling subtypep in place of just returning (values nil nil) can be
- ;very slow. *subtypep is used by PCL itself, and must be fast.
- (defun *subtypep (type1 type2)
- (if (equal type1 type2)
- (values t t)
- (if (eq *boot-state* 'early)
- (values (eq type1 type2) t)
- (let ((*in-precompute-effective-methods-p* t))
- (declare (special *in-precompute-effective-methods-p*))
- ;; *in-precompute-effective-methods-p* is not a good name.
- ;; It changes the way class-applicable-using-class-p works.
- (setq type1 (*normalize-type type1))
- (setq type2 (*normalize-type type2))
- (case (car type2)
- (not
- (values nil (not (equal (cadr type2) type1))))
- (and
- (values nil nil)) ; Should improve this.
- ((eql wrapper-eq class-eq class)
- (multiple-value-bind (app-p maybe-app-p)
- (specializer-applicable-using-type-p type2 type1)
- (values app-p (or app-p (not maybe-app-p)))))
- (t
- (subtypep (convert-to-system-type type1)
- (convert-to-system-type type2))))))))
-
- (defun do-satisfies-deftype (name predicate)
- #+(or :Genera (and :Lucid (not :Prime)) ExCL :coral)
- (let* ((specifier `(satisfies ,predicate))
- (expand-fn #'(lambda (&rest ignore)
- (declare (ignore ignore))
- specifier)))
- ;; Specific ports can insert their own way of doing this. Many
- ;; ports may find the expand-fn defined above useful.
- ;;
- (or #+:Genera
- (setf (get name 'deftype) expand-fn)
- #+(and :Lucid (not :Prime))
- (system::define-macro `(deftype ,name) expand-fn nil)
- #+ExCL
- (setf (get name 'excl::deftype-expander) expand-fn)
- #+:coral
- (setf (get name 'ccl::deftype-expander) expand-fn)))
- #-(or :Genera (and :Lucid (not :Prime)) ExCL :coral)
- ;; This is the default for ports for which we don't know any
- ;; better. Note that for most ports, providing this definition
- ;; should just speed up class definition. It shouldn't have an
- ;; effect on performance of most user code.
- (eval `(deftype ,name () '(satisfies ,predicate))))
-
- (defun make-type-predicate-name (name &optional kind)
- (if (symbol-package name)
- (intern (format nil
- "~@[~A ~]TYPE-PREDICATE ~A ~A"
- kind
- (package-name (symbol-package name))
- (symbol-name name))
- *the-pcl-package*)
- (make-symbol (format nil
- "~@[~A ~]TYPE-PREDICATE ~A"
- kind
- (symbol-name name)))))
-
-
-
- (defvar *built-in-class-symbols* ())
- (defvar *built-in-wrapper-symbols* ())
-
- (defun get-built-in-class-symbol (class-name)
- (or (cadr (assq class-name *built-in-class-symbols*))
- (let ((symbol (intern (format nil
- "*THE-CLASS-~A*"
- (symbol-name class-name))
- *the-pcl-package*)))
- (push (list class-name symbol) *built-in-class-symbols*)
- symbol)))
-
- (defun get-built-in-wrapper-symbol (class-name)
- (or (cadr (assq class-name *built-in-wrapper-symbols*))
- (let ((symbol (intern (format nil
- "*THE-WRAPPER-OF-~A*"
- (symbol-name class-name))
- *the-pcl-package*)))
- (push (list class-name symbol) *built-in-wrapper-symbols*)
- symbol)))
-
-
-
-
- (pushnew 'class *variable-declarations*)
- (pushnew 'variable-rebinding *variable-declarations*)
-
- (defun variable-class (var env)
- (caddr (variable-declaration 'class var env)))
-
- (defvar *name->class->slotd-table* (make-hash-table))
-
-
- ;;;
- ;;; This is used by combined methods to communicate the next methods to
- ;;; the methods they call. This variable is captured by a lexical variable
- ;;; of the methods to give it the proper lexical scope.
- ;;;
- (defvar *next-methods* nil)
-
- (defvar *not-an-eql-specializer* '(not-an-eql-specializer))
-
- (defvar *umi-gfs*)
- (defvar *umi-complete-classes*)
- (defvar *umi-reorder*)
-
- (defvar *invalidate-discriminating-function-force-p* ())
- (defvar *invalid-dfuns-on-stack* ())
-
-
- (defvar *standard-method-combination*)
-
- (defvar *slotd-unsupplied* (list '*slotd-unsupplied*)) ;***
-
-
- (defmacro define-gf-predicate (predicate-name &rest classes)
- `(progn
- (defmethod ,predicate-name ((x t)) nil)
- ,@(mapcar #'(lambda (c) `(defmethod ,predicate-name ((x ,c)) t))
- classes)))
-
- (defun make-class-predicate-name (name)
- (intern (format nil "~A::~A class predicate"
- (package-name (symbol-package name))
- name)
- *the-pcl-package*))
-
- (defun plist-value (object name)
- (getf (object-plist object) name))
-
- (defun #-setf SETF\ PCL\ PLIST-VALUE #+setf (setf plist-value) (new-value object name)
- (if new-value
- (setf (getf (object-plist object) name) new-value)
- (progn
- (remf (object-plist object) name)
- nil)))
-
-
-
- (defvar *built-in-classes*
- ;;
- ;; name supers subs cdr of cpl
- ;; prototype
- '(;(t () (number sequence array character symbol) ())
- (number (t) (complex float rational) (t))
- (complex (number) () (number t)
- #c(1 1))
- (float (number) () (number t)
- 1.0)
- (rational (number) (integer ratio) (number t))
- (integer (rational) () (rational number t)
- 1)
- (ratio (rational) () (rational number t)
- 1/2)
-
- (sequence (t) (list vector) (t))
- (list (sequence) (cons null) (sequence t))
- (cons (list) () (list sequence t)
- (nil))
-
-
- (array (t) (vector) (t)
- #2A((NIL)))
- (vector (array
- sequence) (string bit-vector) (array sequence t)
- #())
- (string (vector) () (vector array sequence t)
- "")
- (bit-vector (vector) () (vector array sequence t)
- #*1)
- (character (t) () (t)
- #\c)
-
- (symbol (t) (null) (t)
- symbol)
- (null (symbol
- list) () (symbol list sequence t)
- nil)))
-
-
- ;;;
- ;;; The classes that define the kernel of the metabraid.
- ;;;
- (defclass t () ()
- (:metaclass built-in-class))
-
- (defclass slot-object (t) ()
- (:metaclass slot-class))
-
- (defclass structure-object (slot-object) ()
- (:metaclass structure-class))
-
- (defstruct (structure-object
- (:constructor |STRUCTURE-OBJECT class constructor|)))
-
- (defclass standard-object (slot-object) ())
-
- (defclass metaobject (standard-object) ())
-
- (defclass specializer (metaobject)
- ((type
- :initform nil
- :reader specializer-type)))
-
- (defclass definition-source-mixin (standard-object)
- ((source
- :initform (load-truename)
- :reader definition-source
- :initarg :definition-source)))
-
- (defclass plist-mixin (standard-object)
- ((plist
- :initform ()
- :accessor object-plist)))
-
- (defclass documentation-mixin (plist-mixin)
- ())
-
- (defclass dependent-update-mixin (plist-mixin)
- ())
-
- ;;;
- ;;; The class CLASS is a specified basic class. It is the common superclass
- ;;; of any kind of class. That is any class that can be a metaclass must
- ;;; have the class CLASS in its class precedence list.
- ;;;
- (defclass class (documentation-mixin dependent-update-mixin definition-source-mixin
- specializer)
- ((name
- :initform nil
- :initarg :name
- :accessor class-name)
- (class-eq-specializer
- :initform nil
- :reader class-eq-specializer)
- (direct-superclasses
- :initform ()
- :reader class-direct-superclasses)
- (direct-subclasses
- :initform ()
- :reader class-direct-subclasses)
- (direct-methods
- :initform (cons nil nil))
- (predicate-name
- :initform nil
- :reader class-predicate-name)))
-
- ;;;
- ;;; The class PCL-CLASS is an implementation-specific common superclass of
- ;;; all specified subclasses of the class CLASS.
- ;;;
- (defclass pcl-class (class)
- ((class-precedence-list
- :reader class-precedence-list)
- (can-precede-list
- :initform ()
- :reader class-can-precede-list)
- (incompatible-superclass-list
- :initform ()
- :accessor class-incompatible-superclass-list)
- (wrapper
- :initform nil
- :reader class-wrapper)
- (prototype
- :initform nil
- :reader class-prototype)))
-
- (defclass slot-class (pcl-class)
- ((direct-slots
- :initform ()
- :accessor class-direct-slots)
- (slots
- :initform ()
- :accessor class-slots)
- (initialize-info
- :initform nil
- :accessor class-initialize-info)))
-
- ;;;
- ;;; The class STD-CLASS is an implementation-specific common superclass of
- ;;; the classes STANDARD-CLASS and FUNCALLABLE-STANDARD-CLASS.
- ;;;
- (defclass std-class (slot-class)
- ())
-
- (defclass standard-class (std-class)
- ())
-
- (defclass funcallable-standard-class (std-class)
- ())
-
- (defclass forward-referenced-class (pcl-class) ())
-
- (defclass built-in-class (pcl-class) ())
-
- (defclass structure-class (slot-class)
- ((defstruct-form
- :initform ()
- :accessor class-defstruct-form)
- (defstruct-constructor
- :initform nil
- :accessor class-defstruct-constructor)
- (from-defclass-p
- :initform nil
- :initarg :from-defclass-p)))
-
-
- (defclass specializer-with-object (specializer) ())
-
- (defclass exact-class-specializer (specializer) ())
-
- (defclass class-eq-specializer (exact-class-specializer specializer-with-object)
- ((object :initarg :class :reader specializer-class :reader specializer-object)))
-
- (defclass class-prototype-specializer (specializer-with-object)
- ((object :initarg :class :reader specializer-class :reader specializer-object)))
-
- (defclass eql-specializer (exact-class-specializer specializer-with-object)
- ((object :initarg :object :reader specializer-object
- :reader eql-specializer-object)))
-
- (defvar *eql-specializer-table* (make-hash-table :test 'eql))
-
- (defun intern-eql-specializer (object)
- (or (gethash object *eql-specializer-table*)
- (setf (gethash object *eql-specializer-table*)
- (make-instance 'eql-specializer :object object))))
-
-
- ;;;
- ;;; Slot definitions.
- ;;;
- (defclass slot-definition (metaobject)
- ((name
- :initform nil
- :initarg :name
- :accessor slot-definition-name)
- (initform
- :initform nil
- :initarg :initform
- :accessor slot-definition-initform)
- (initfunction
- :initform nil
- :initarg :initfunction
- :accessor slot-definition-initfunction)
- (readers
- :initform nil
- :initarg :readers
- :accessor slot-definition-readers)
- (writers
- :initform nil
- :initarg :writers
- :accessor slot-definition-writers)
- (initargs
- :initform nil
- :initarg :initargs
- :accessor slot-definition-initargs)
- (type
- :initform t
- :initarg :type
- :accessor slot-definition-type)
- (documentation
- :initform ""
- :initarg :documentation)
- (class
- :initform nil
- :initarg :class
- :accessor slot-definition-class)))
-
- (defclass standard-slot-definition (slot-definition)
- ((allocation
- :initform :instance
- :initarg :allocation
- :accessor slot-definition-allocation)))
-
- (defclass structure-slot-definition (slot-definition)
- ((defstruct-accessor-symbol
- :initform nil
- :initarg :defstruct-accessor-symbol
- :accessor slot-definition-defstruct-accessor-symbol)
- (internal-reader-function
- :initform nil
- :initarg :internal-reader-function
- :accessor slot-definition-internal-reader-function)
- (internal-writer-function
- :initform nil
- :initarg :internal-writer-function
- :accessor slot-definition-internal-writer-function)))
-
- (defclass direct-slot-definition (slot-definition)
- ())
-
- (defclass effective-slot-definition (slot-definition)
- ((reader-function ; #'(lambda (object) ...)
- :accessor slot-definition-reader-function)
- (writer-function ; #'(lambda (new-value object) ...)
- :accessor slot-definition-writer-function)
- (boundp-function ; #'(lambda (object) ...)
- :accessor slot-definition-boundp-function)
- (accessor-flags
- :initform 0)))
-
- (defclass standard-direct-slot-definition (standard-slot-definition
- direct-slot-definition)
- ())
-
- (defclass standard-effective-slot-definition (standard-slot-definition
- effective-slot-definition)
- ((location ; nil, a fixnum, a cons: (slot-name . value)
- :initform nil
- :accessor slot-definition-location)))
-
- (defclass structure-direct-slot-definition (structure-slot-definition
- direct-slot-definition)
- ())
-
- (defclass structure-effective-slot-definition (structure-slot-definition
- effective-slot-definition)
- ())
-
- (defclass method (metaobject) ())
-
- (defclass standard-method (definition-source-mixin plist-mixin method)
- ((generic-function
- :initform nil
- :accessor method-generic-function)
- ; (qualifiers
- ; :initform ()
- ; :initarg :qualifiers
- ; :reader method-qualifiers)
- (specializers
- :initform ()
- :initarg :specializers
- :reader method-specializers)
- (lambda-list
- :initform ()
- :initarg :lambda-list
- :reader method-lambda-list)
- (function
- :initform nil
- :initarg :function) ;no writer
- (fast-function
- :initform nil
- :initarg :fast-function ;no writer
- :reader method-fast-function)
- ; (documentation
- ; :initform nil
- ; :initarg :documentation
- ; :reader method-documentation)
- ))
-
- (defclass standard-accessor-method (standard-method)
- ((slot-name :initform nil
- :initarg :slot-name
- :reader accessor-method-slot-name)
- (slot-definition :initform nil
- :initarg :slot-definition
- :reader accessor-method-slot-definition)))
-
- (defclass standard-reader-method (standard-accessor-method) ())
-
- (defclass standard-writer-method (standard-accessor-method) ())
-
- (defclass standard-boundp-method (standard-accessor-method) ())
-
- (defclass generic-function (dependent-update-mixin
- definition-source-mixin
- documentation-mixin
- metaobject)
- ()
- (:metaclass funcallable-standard-class))
-
- (defclass standard-generic-function (generic-function)
- ((name
- :initform nil
- :initarg :name
- :accessor generic-function-name)
- (methods
- :initform ()
- :accessor generic-function-methods)
- (method-class
- :initarg :method-class
- :accessor generic-function-method-class)
- (method-combination
- :initarg :method-combination
- :accessor generic-function-method-combination)
- (arg-info
- :initform (make-arg-info)
- :reader gf-arg-info)
- (dfun-state
- :initform ()
- :accessor gf-dfun-state)
- (pretty-arglist
- :initform ()
- :accessor gf-pretty-arglist)
- )
- (:metaclass funcallable-standard-class)
- (:default-initargs :method-class *the-class-standard-method*
- :method-combination *standard-method-combination*))
-
- (defclass method-combination (metaobject) ())
-
- (defclass standard-method-combination
- (definition-source-mixin method-combination)
- ((type :reader method-combination-type
- :initarg :type)
- (documentation :reader method-combination-documentation
- :initarg :documentation)
- (options :reader method-combination-options
- :initarg :options)))
-
- (defparameter *early-class-predicates*
- '((specializer specializerp)
- (exact-class-specializer exact-class-specializer-p)
- (class-eq-specializer class-eq-specializer-p)
- (eql-specializer eql-specializer-p)
- (class classp)
- (slot-class slot-class-p)
- (standard-class standard-class-p)
- (funcallable-standard-class funcallable-standard-class-p)
- (structure-class structure-class-p)
- (forward-referenced-class forward-referenced-class-p)
- (method method-p)
- (standard-method standard-method-p)
- (standard-accessor-method standard-accessor-method-p)
- (standard-reader-method standard-reader-method-p)
- (standard-writer-method standard-writer-method-p)
- (standard-boundp-method standard-boundp-method-p)
- (generic-function generic-function-p)
- (standard-generic-function standard-generic-function-p)
- (method-combination method-combination-p)))
-
-