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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)
(defun emit-reader/writer-function (reader/writer 1-or-2-class class-slot-p)
(values
(ecase reader/writer
(:reader (ecase 1-or-2-class
(1 (if class-slot-p
(emit-reader/writer-macro :reader 1 t)
(emit-reader/writer-macro :reader 1 nil)))
(2 (if class-slot-p
(emit-reader/writer-macro :reader 2 t)
(emit-reader/writer-macro :reader 2 nil)))))
(:writer (ecase 1-or-2-class
(1 (if class-slot-p
(emit-reader/writer-macro :writer 1 t)
(emit-reader/writer-macro :writer 1 nil)))
(2 (if class-slot-p
(emit-reader/writer-macro :writer 2 t)
(emit-reader/writer-macro :writer 2 nil))))))
nil))
(defun emit-one-or-n-index-reader/writer-function
(reader/writer cached-index-p class-slot-p)
(values
(ecase reader/writer
(:reader (if cached-index-p
(if class-slot-p
(emit-one-or-n-index-reader/writer-macro :reader t t)
(emit-one-or-n-index-reader/writer-macro :reader t nil))
(if class-slot-p
(emit-one-or-n-index-reader/writer-macro :reader nil t)
(emit-one-or-n-index-reader/writer-macro :reader nil nil))))
(:writer (if cached-index-p
(if class-slot-p
(emit-one-or-n-index-reader/writer-macro :writer t t)
(emit-one-or-n-index-reader/writer-macro :writer t nil))
(if class-slot-p
(emit-one-or-n-index-reader/writer-macro :writer nil t)
(emit-one-or-n-index-reader/writer-macro :writer nil nil)))))
nil))
(eval-when (compile load eval)
(defparameter checking-or-caching-list
'()
#||
'((T NIL (CLASS) NIL)
(T NIL (CLASS CLASS) NIL)
(T NIL (CLASS CLASS CLASS) NIL)
(T NIL (CLASS CLASS T) NIL)
(T NIL (CLASS CLASS T T) NIL)
(T NIL (CLASS CLASS T T T) NIL)
(T NIL (CLASS T) NIL)
(T NIL (CLASS T T) NIL)
(T NIL (CLASS T T T) NIL)
(T NIL (CLASS T T T T) NIL)
(T NIL (CLASS T T T T T) NIL)
(T NIL (CLASS T T T T T T) NIL)
(T NIL (T CLASS) NIL)
(T NIL (T CLASS T) NIL)
(T NIL (T T CLASS) NIL)
(T NIL (CLASS) T)
(T NIL (CLASS CLASS) T)
(T NIL (CLASS T) T)
(T NIL (CLASS T T) T)
(T NIL (CLASS T T T) T)
(T NIL (T CLASS) T)
(T T (CLASS) NIL)
(T T (CLASS CLASS) NIL)
(T T (CLASS CLASS CLASS) NIL)
(NIL NIL (CLASS) NIL)
(NIL NIL (CLASS CLASS) NIL)
(NIL NIL (CLASS CLASS T) NIL)
(NIL NIL (CLASS CLASS T T) NIL)
(NIL NIL (CLASS T) NIL)
(NIL NIL (T CLASS T) NIL)
(NIL NIL (CLASS) T)
(NIL NIL (CLASS CLASS) T)) ||# ))
(defmacro make-checking-or-caching-function-list ()
`(list ,@(mapcar #'(lambda (key)
`(cons ',key (emit-checking-or-caching-macro ,@key)))
checking-or-caching-list)))
(defvar checking-or-caching-function-list)
(defun initialize-checking-or-caching-function-list ()
(setq checking-or-caching-function-list
(make-checking-or-caching-function-list)))
(initialize-checking-or-caching-function-list)
(defmacro emit-checking-or-caching-function-precompiled ()
`(cdr (assoc (list cached-emf-p return-value-p metatypes applyp)
checking-or-caching-function-list
:test #'equal)))
(defun emit-checking-or-caching-function (cached-emf-p return-value-p metatypes applyp)
(let ((fn (emit-checking-or-caching-function-precompiled)))
(if fn
(values fn nil)
(values (emit-checking-or-caching-function-preliminary
cached-emf-p return-value-p metatypes applyp)
t))))
(defvar not-in-cache (make-symbol "not in cache"))
(defun emit-checking-or-caching-function-preliminary
(cached-emf-p return-value-p metatypes applyp)
(declare (ignore applyp))
(if cached-emf-p
#'(lambda (cache miss-fn)
(declare (type function miss-fn))
(fin-lambda-fn (&rest args)
(declare #.*optimize-speed*)
#+copy-&rest-arg (setq args (copy-list args))
(with-dfun-wrappers (args metatypes) (dfun-wrappers invalid-wrapper-p)
(apply miss-fn args)
(if invalid-wrapper-p
(apply miss-fn args)
(let ((emf (probe-cache cache dfun-wrappers not-in-cache)))
(if (eq emf not-in-cache)
(apply miss-fn args)
(if return-value-p
emf
(invoke-emf emf args))))))))
#'(lambda (cache emf miss-fn)
(declare (type function miss-fn))
(fin-lambda-fn (&rest args)
(declare #.*optimize-speed*)
#+copy-&rest-arg (setq args (copy-list args))
(with-dfun-wrappers (args metatypes) (dfun-wrappers invalid-wrapper-p)
(apply miss-fn args)
(if invalid-wrapper-p
(apply miss-fn args)
(let ((found-p (not (eq not-in-cache
(probe-cache cache dfun-wrappers
not-in-cache)))))
(if found-p
(invoke-emf emf args)
(if return-value-p
t
(apply miss-fn args))))))))))
(defun emit-default-only-function (metatypes applyp)
(declare (ignore metatypes applyp))
(values #'(lambda (emf)
#'(lambda (&rest args)
#+copy-&rest-arg (setq args (copy-list args))
(invoke-emf emf args)))
t))
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