0.8.12.4:
[sbcl.git] / src / pcl / defs.lisp
index 19a1313..c0bff27 100644 (file)
   (parse-gspec spec
     (name (fdefine-carefully name new-value))))
 \f
-(declaim (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-stream*
-
-                 *the-class-slot-object*
-                 *the-class-structure-object*
-                 *the-class-std-object*
-                 *the-class-standard-object*
-                 *the-class-funcallable-standard-object*
-                 *the-class-class*
-                 *the-class-generic-function*
-                 *the-class-built-in-class*
-                 *the-class-slot-class*
-                 *the-class-structure-class*
-                 *the-class-std-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*))
-
-(declaim (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*))
-\f
 ;;;; type specifier hackery
 
 ;;; internal to this file
        ;; FIXME: do we still need this?
        ((and (null args) (typep type 'classoid))
         (or (classoid-pcl-class type)
-            (ensure-non-structure-class (classoid-name type))))
+            (ensure-non-standard-class (classoid-name type))))
        ((specializerp type) type)))
 
 ;;; interface
 \f
 ;;;; built-in classes
 
-;;; FIXME: This was the portable PCL way of setting up
-;;; *BUILT-IN-CLASSES*, but in SBCL (as in CMU CL) it's almost
-;;; entirely wasted motion, since it's immediately overwritten by a
-;;; result mostly derived from SB-KERNEL::*BUILT-IN-CLASSES*. However,
-;;; we can't just delete it, since the fifth element from each entry
-;;; (a prototype of the class) is still in the final result. It would
-;;; be nice to clean this up so that the other, never-used stuff is
-;;; gone, perhaps finding a tidier way to represent examples of each
-;;; class, too.
-;;;
-;;; FIXME: This can probably be blown away after bootstrapping.
-;;; And SB-KERNEL::*BUILT-IN-CLASSES*, too..
-#|
-(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)))
-|#
-
 ;;; Grovel over SB-KERNEL::*BUILT-IN-CLASSES* in order to set
 ;;; SB-PCL:*BUILT-IN-CLASSES*.
 (/show "about to set up SB-PCL::*BUILT-IN-CLASSES*")
                     (/noshow sub)
                     (when (member class (direct-supers sub))
                       (res sub)))))
-              (res)))
-          (prototype (class-name)
-            (let ((assoc (assoc class-name
-                                '((complex    . #c(1 1))
-                                  (float      . 1.0)
-                                  (integer    . 1)
-                                  (ratio      . 1/2)
-                                  (sequence   . nil)
-                                  (list       . nil)
-                                  (cons       . (nil))
-                                  (array      . #2a((nil)))
-                                  (vector     . #())
-                                  (string     . "")
-                                  (bit-vector . #*1)
-                                  (character  . #\c)
-                                  (symbol     . symbol)
-                                  (null       . nil)))))
-              (if assoc
-                  (cdr assoc)
-                  ;; This is the default prototype value which was
-                  ;; used, without explanation, by the CMU CL code
-                  ;; we're derived from. Evidently it's safe in all
-                  ;; relevant cases.
-                  42))))
+              (res))))
     (mapcar (lambda (kernel-bic-entry)
              (/noshow "setting up" kernel-bic-entry)
              (let* ((name (car kernel-bic-entry))
-                    (class (find-classoid name)))
+                    (class (find-classoid name))
+                    (prototype-form
+                     (getf (cdr kernel-bic-entry) :prototype-form)))
                (/noshow name class)
                `(,name
                  ,(mapcar #'classoid-name (direct-supers class))
                        (reverse
                         (layout-inherits
                          (classoid-layout class))))
-                 ,(prototype name))))
+                 ,(if prototype-form
+                      (eval prototype-form)
+                      ;; This is the default prototype value which
+                      ;; was used, without explanation, by the CMU CL
+                      ;; code we're derived from. Evidently it's safe
+                      ;; in all relevant cases.
+                      42))))
            (remove-if (lambda (kernel-bic-entry)
                         (member (first kernel-bic-entry)
                                 ;; I'm not sure why these are removed from
 (defclass slot-object (t) ()
   (:metaclass slot-class))
 
+(defclass condition (slot-object instance) ()
+  (:metaclass condition-class))
+
 (defclass structure-object (slot-object instance) ()
   (:metaclass structure-class))
 
     :accessor object-plist))
   (:metaclass std-class))
 
-(defclass documentation-mixin (plist-mixin)
-  ()
-  (:metaclass std-class))
-
 (defclass dependent-update-mixin (plist-mixin)
   ()
   (:metaclass std-class))
 ;;; 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
+(defclass class (dependent-update-mixin
                 definition-source-mixin
                 specializer)
   ((name
     :initform (cons nil nil))
    (predicate-name
     :initform nil
-    :reader class-predicate-name)))
+    :reader class-predicate-name)
+   (documentation
+    :initform nil
+    :initarg :documentation)
+   (finalized-p
+    :initform nil
+    :reader class-finalized-p)))
+
+(def!method make-load-form ((class class) &optional env)
+  ;; FIXME: should we not instead pass ENV to FIND-CLASS?  Probably
+  ;; doesn't matter while all our environments are the same...
+  (declare (ignore env))
+  (let ((name (class-name class)))
+    (unless (and name (eq (find-class name nil) class))
+      (error "~@<Can't use anonymous or undefined class as constant: ~S~:@>"
+            class))
+    `(find-class ',name)))
 
 ;;; The class PCL-CLASS is an implementation-specific common
 ;;; superclass of all specified subclasses of the class CLASS.
     :accessor class-direct-slots)
    (slots
     :initform ()
-    :accessor class-slots)
-   (initialize-info
-    :initform nil
-    :accessor class-initialize-info)))
+    :accessor class-slots)))
 
 ;;; The class STD-CLASS is an implementation-specific common
 ;;; superclass of the classes STANDARD-CLASS and
 
 (defclass built-in-class (pcl-class) ())
 
-(defclass condition-class (pcl-class) ())
+(defclass condition-class (slot-class) ())
 
 (defclass structure-class (slot-class)
   ((defstruct-form
     :initarg :type
     :accessor slot-definition-type)
    (documentation
-    :initform ""
+    :initform nil
     :initarg :documentation)
    (class
     :initform nil
     :initarg :allocation-class
     :accessor slot-definition-allocation-class)))
 
+(defclass condition-slot-definition (slot-definition)
+  ((allocation
+    :initform :instance
+    :initarg :allocation
+    :accessor slot-definition-allocation)
+   (allocation-class
+    :initform nil
+    :initarg :allocation-class
+    :accessor slot-definition-allocation-class)))
+
 (defclass structure-slot-definition (slot-definition)
   ((defstruct-accessor-symbol
      :initform nil
     :initform nil
     :accessor slot-definition-location)))
 
+(defclass condition-direct-slot-definition (condition-slot-definition
+                                           direct-slot-definition)
+  ())
+
+(defclass condition-effective-slot-definition (condition-slot-definition
+                                              effective-slot-definition)
+  ())
+
 (defclass structure-direct-slot-definition (structure-slot-definition
                                            direct-slot-definition)
   ())
     :initform nil
     :initarg :fast-function            ;no writer
     :reader method-fast-function)
-;;;     (documentation
-;;;    :initform nil
-;;;    :initarg  :documentation
-;;;    :reader method-documentation)
-  ))
+   (documentation
+    :initform nil
+    :initarg :documentation)))
 
 (defclass standard-accessor-method (standard-method)
   ((slot-name :initform nil
 
 (defclass generic-function (dependent-update-mixin
                            definition-source-mixin
-                           documentation-mixin
                            funcallable-standard-object)
-  (;; We need to make a distinction between the methods initially set
+  ((documentation
+    :initform nil
+    :initarg :documentation)
+   ;; We need to make a distinction between the methods initially set
    ;; up by :METHOD options to DEFGENERIC and the ones set up later by
-   ;; DEFMETHOD, because ANSI's specifies that executing DEFGENERIC on
+   ;; DEFMETHOD, because ANSI specifies that executing DEFGENERIC on
    ;; an already-DEFGENERICed function clears the methods set by the
    ;; previous DEFGENERIC, but not methods set by DEFMETHOD. (Making
    ;; this distinction seems a little kludgy, but it has the positive
   (:default-initargs :method-class *the-class-standard-method*
                     :method-combination *standard-method-combination*))
 
-(defclass method-combination (standard-object) ())
+(defclass method-combination (standard-object)
+  ((documentation
+    :reader method-combination-documentation
+    :initform nil
+    :initarg :documentation)))
 
 (defclass standard-method-combination (definition-source-mixin
-                                       method-combination)
+                                      method-combination)
   ((type
     :reader method-combination-type
     :initarg :type)
-   (documentation
-    :reader method-combination-documentation
-    :initarg :documentation)
    (options
     :reader method-combination-options
     :initarg :options)))
     (std-class std-class-p)
     (standard-class standard-class-p)
     (funcallable-standard-class funcallable-standard-class-p)
+    (condition-class condition-class-p)
     (structure-class structure-class-p)
     (forward-referenced-class forward-referenced-class-p)
     (method method-p)