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;;;-*-Mode:LISP; Package:(PCL LISP 1000); Base:10; Syntax:Common-lisp -*-
(in-package :pcl)
;; This file contains some of the things that will have to change to support
;; inlining of methods.
(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))))
(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
,@(remove nil
(mapcar #'(lambda (a s) (and (symbolp s)
(neq s 't)
`(class ,a ,s)))
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
(progn ,@parameters-to-reference)
(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))))
(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)))))))))))
(define-inline-function slot-value (instance slot-name) (form closure-p env)
:predicate (and (not closure-p) (constantp slot-name))
:inline-arguments (required-parameters slots)
:inline (optimize-slot-value
slots
(can-optimize-access form required-parameters env)
form))
;collect information about:
; uses of the required-parameters
; uses of call-next-method and next-method-p:
; called-p
; apply-p
; arglist info
;optimize calls to slot-value, set-slot-value, slot-boundp
;optimize calls to find-class
;optimize generic-function calls
(defun make-walk-function (required-parameters info slots calls)
#'(lambda (form context env)
(cond ((not (eq context ':eval)) form)
((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))))
((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)))
(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 (or (symbolp (car form))
(and (consp (car form))
(eq (caar form) 'setf)))
(gboundp (car form))
(if (eq *boot-state* 'complete)
(standard-generic-function-p (gdefinition (car form)))
(funcallable-instance-p (gdefinition (car form)))))
(optimize-generic-function-call
form required-parameters env slots calls))
(t form))))
(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
(walk-functions `((call-next-method-p
,#'(lambda (form closure-p env)
(setq call-next-method-p 't)
(when closure-p
(setq closurep t))
form))
(next-method-p
,#'(lambda (form closure-p env)
(setq next-method-p-p 't)
(when closure-p
(setq closurep t))
form))
((slot-value set-slot-value slot-boundp)
,#'(lambda (form closure-p env)
(if (and (not closure-p)
(constantp (caddr form)))
(let ((walked-lambda (walk-form method-lambda env
(make-walk-function
`((call-next-method-p
,#'(lambda (form closure-p env)
(setq call-next-method-p 't)
(when closure-p
(setq closurep t))
form))
(next-method-p
,#'(lambda (form closure-p env)
(setq next-method-p-p 't)
(when closure-p
(setq closurep t))
form))
((slot-value set-slot-value slot-boundp)
,#'(lambda (form closure-p env)
(
(values walked-lambda
call-next-method-p closurep next-method-p-p)))))
(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)))
(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 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)
(intern (format nil "FAST-~A"
(car method-spec))
*the-pcl-package*)))
,@(cdr method-spec))))
(set-function-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)))))))
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