| 1 | ;;;-*-Mode: LISP; Package: CCL -*- |
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| 2 | ;;; |
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| 3 | ;;; Copyright (C) 1994-2001 Digitool, Inc |
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| 4 | ;;; This file is part of OpenMCL. |
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| 5 | ;;; |
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| 6 | ;;; OpenMCL is licensed under the terms of the Lisp Lesser GNU Public |
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| 7 | ;;; License , known as the LLGPL and distributed with OpenMCL as the |
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| 8 | ;;; file "LICENSE". The LLGPL consists of a preamble and the LGPL, |
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| 9 | ;;; which is distributed with OpenMCL as the file "LGPL". Where these |
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| 10 | ;;; conflict, the preamble takes precedence. |
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| 11 | ;;; |
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| 12 | ;;; OpenMCL is referenced in the preamble as the "LIBRARY." |
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| 13 | ;;; |
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| 14 | ;;; The LLGPL is also available online at |
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| 15 | ;;; http://opensource.franz.com/preamble.html |
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| 16 | |
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| 17 | (in-package "CCL") |
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| 18 | |
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| 19 | ;;; Record pseudo-arglist info for special operators. |
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| 20 | (record-arglist 'catch "tag &body body") |
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| 21 | (record-arglist 'progn "&BODY BODY") |
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| 22 | (record-arglist 'function "NAME-OR-LAMBDA-EXPRESSION") |
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| 23 | (record-arglist 'go "TAG") |
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| 24 | (record-arglist 'symbol-macrolet "(&REST BINDINGS) &BODY BODY") |
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| 25 | (record-arglist 'locally "DECLARATION* &BODY BODY") |
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| 26 | (record-arglist 'setq "[SYMBOL VALUE]*") |
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| 27 | (record-arglist 'tagbody "&REST TAGS-OR-FORMS") |
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| 28 | (record-arglist 'return-from "BLOCK VALUES") |
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| 29 | (record-arglist 'quote '(form)) |
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| 30 | (record-arglist 'macrolet "(&REST BINDINGS) &BODY BODY") |
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| 31 | (record-arglist 'the '(type-specifier form)) |
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| 32 | (record-arglist 'eval-when "(&REST SITUATIONS) &BODY BODY") |
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| 33 | (record-arglist 'let* "(&REST BINDINGS) &BODY BODY") |
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| 34 | (record-arglist 'let "(&REST BINDINGS) &BODY BODY") |
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| 35 | (record-arglist 'load-time-value '(form)) |
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| 36 | (record-arglist 'throw '(tag value)) |
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| 37 | (record-arglist 'unwind-protect "PROTECTED-FORM &BODY CLEANUP-FORMS") |
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| 38 | (record-arglist 'flet "(&REST BINDINGS) &BODY BODY") |
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| 39 | (record-arglist 'multiple-value-call '(function &rest values-producing-forms)) |
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| 40 | (record-arglist 'block "NAME &BODY BODY") |
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| 41 | (record-arglist 'labels "(&REST BINDINGS) &BODY BODY") |
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| 42 | (record-arglist 'multiple-value-prog1 "VALUES-PRODUCING-FORM &BODY FORMS-FOR-EFFECT") |
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| 43 | (record-arglist 'if '(test true &optional false)) |
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| 44 | (record-arglist 'progv "(&REST VARS) (&REST VALUES) &BODY BODY") |
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| 45 | (record-arglist 'nfunction '(function-name lambda-expression)) |
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| 46 | |
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| 47 | |
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| 48 | ; Returns two values: the arglist & it's functions binding. |
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| 49 | ; If the second arg is NIL, there was no function binding. |
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| 50 | (defun arglist (sym &optional include-bindings) |
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| 51 | (%arglist sym include-bindings)) |
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| 52 | |
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| 53 | (defun arglist-string (sym &optional include-bindings) |
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| 54 | (multiple-value-bind (res type) |
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| 55 | (%arglist-internal sym include-bindings) |
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| 56 | (values |
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| 57 | (if (stringp res) |
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| 58 | res |
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| 59 | (and res (princ-to-string res))) |
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| 60 | type))) |
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| 61 | |
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| 62 | (defun set-arglist (sym arglist) |
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| 63 | (let ((real-sym (arglist-sym-and-def sym))) |
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| 64 | (when (or real-sym (null sym)) |
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| 65 | (if (eq arglist t) |
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| 66 | (remhash real-sym %lambda-lists%) |
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| 67 | (setf (gethash real-sym %lambda-lists%) arglist))))) |
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| 68 | |
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| 69 | (defsetf arglist set-arglist) |
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| 70 | |
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| 71 | ; Same as ARGLIST, but has the option of using TEMP-CONS instead of CONS |
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| 72 | ; to cons up the list. |
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| 73 | (defun %arglist (sym &optional include-bindings) |
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| 74 | (multiple-value-bind (res type) |
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| 75 | (%arglist-internal |
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| 76 | sym include-bindings) |
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| 77 | (when (stringp res) |
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| 78 | (with-input-from-string (stream res) |
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| 79 | (setq res nil) |
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| 80 | (let ((eof (list nil)) |
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| 81 | val errorp) |
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| 82 | (declare (dynamic-extent eof)) |
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| 83 | (loop |
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| 84 | (multiple-value-setq (val errorp) |
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| 85 | (ignore-errors (values (read stream nil eof)))) |
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| 86 | (when errorp |
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| 87 | (push '&rest res) |
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| 88 | (push ':unparseable res) |
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| 89 | (return)) |
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| 90 | (when (eq val eof) |
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| 91 | (return)) |
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| 92 | (push val res)) |
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| 93 | (setq res |
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| 94 | (if (and (null (cdr res)) (listp (car res))) |
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| 95 | (car res) |
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| 96 | (nreverse res)))))) |
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| 97 | (values res type))) |
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| 98 | |
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| 99 | (defun %arglist-internal (sym include-bindings |
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| 100 | &aux def type) |
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| 101 | (multiple-value-setq (sym def) (arglist-sym-and-def sym)) |
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| 102 | (if (generic-function-p def) |
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| 103 | (values (generic-function-lambda-list def) :declaration) |
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| 104 | (let ((ll (gethash sym %lambda-lists% *eof-value*)) |
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| 105 | (macrop (and (symbolp sym) (eq (macro-function sym) def)))) |
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| 106 | (flet ((strip (f) (if (stringp f) f (strip-bindings f include-bindings)))) |
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| 107 | (declare (dynamic-extent #'strip)) |
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| 108 | (cond ((neq ll *eof-value*) (values (strip ll) :declaration)) |
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| 109 | ((consp def) |
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| 110 | ;; Presumably (lambda (... arglist) ...) |
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| 111 | (values (strip (cadr def)) :definition)) |
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| 112 | ((neq (setq ll (getf (%lfun-info def) 'arglist *eof-value*)) *eof-value*) |
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| 113 | (values ll :definition)) |
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| 114 | ((and (not macrop) (setq ll (uncompile-function def))) |
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| 115 | (values (strip (cadr ll)) (or type :definition))) |
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| 116 | ((lfunp def) |
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| 117 | (multiple-value-bind (arglist gotit) |
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| 118 | (unless macrop (arglist-from-map def)) |
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| 119 | (if gotit |
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| 120 | (values arglist :analysis) |
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| 121 | (cond (macrop (values nil :unknown)) |
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| 122 | (t (values (arglist-from-compiled-def def) :analysis)))))) |
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| 123 | (t (values nil nil))))))) |
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| 124 | |
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| 125 | |
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| 126 | |
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| 127 | (defun strip-bindings (arglist include-bindings) |
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| 128 | (if include-bindings |
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| 129 | arglist |
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| 130 | (let ((res nil)) |
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| 131 | (do ((args arglist (%cdr args))) |
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| 132 | ((not (consp args)) (nreconc res args)) |
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| 133 | (let ((arg (car args))) |
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| 134 | (cond ((atom arg) |
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| 135 | (push arg res)) |
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| 136 | ((atom (car arg)) |
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| 137 | (push (car arg) res)) |
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| 138 | (t (push (caar arg) res)))))))) |
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| 139 | |
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| 140 | (defun arglist-sym-and-def (sym &aux def) |
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| 141 | (cond ((functionp sym) |
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| 142 | (setq def sym |
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| 143 | sym (function-name def)) |
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| 144 | (unless (and (symbolp sym) (eq def (fboundp sym))) |
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| 145 | (setq sym nil))) |
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| 146 | ((listp sym) |
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| 147 | (if (eq (car sym) 'setf) |
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| 148 | (setq sym (setf-function-name (cadr sym)) |
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| 149 | def (find-unencapsulated-definition (fboundp sym))) |
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| 150 | (setq sym nil def nil))) |
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| 151 | ((standard-method-p sym) |
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| 152 | (setq def (closure-function |
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| 153 | (find-unencapsulated-definition (%method-function sym))))) |
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| 154 | ((and (macro-function sym)) |
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| 155 | (setq def (macro-function sym))) |
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| 156 | ((special-operator-p sym) |
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| 157 | nil) |
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| 158 | (t (setq def (find-unencapsulated-definition (fboundp sym))))) |
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| 159 | (values sym (if (standard-generic-function-p def) def (closure-function def)))) |
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| 160 | |
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| 161 | (defun arglist-from-map (lfun) |
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| 162 | (multiple-value-bind (nreq nopt restp nkeys allow-other-keys |
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| 163 | optinit lexprp |
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| 164 | ncells nclosed) |
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| 165 | (function-args lfun) |
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| 166 | (declare (ignore optinit)) |
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| 167 | (if lexprp |
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| 168 | (setq restp t)) |
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| 169 | (let ((map (car (function-symbol-map lfun)))) |
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| 170 | (if map |
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| 171 | (let ((total (+ nreq nopt (if restp 1 0) (or nkeys 0))) |
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| 172 | (idx (- (length map) nclosed)) |
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| 173 | (res nil)) |
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| 174 | (if (%izerop total) |
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| 175 | (values nil t) |
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| 176 | (progn |
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| 177 | (dotimes (x nreq) |
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| 178 | (declare (fixnum x)) |
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| 179 | (push (if (> idx 0) (elt map (decf idx)) (make-arg "ARG" x)) res)) |
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| 180 | (when (neq nopt 0) |
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| 181 | (push '&optional res) |
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| 182 | (dotimes (x (the fixnum nopt)) |
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| 183 | (push (if (> idx 0) (elt map (decf idx)) (make-arg "OPT" x)) res))) |
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| 184 | |
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| 185 | (when restp |
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| 186 | (push (if lexprp '&lexpr '&rest) res) |
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| 187 | (push (if (> idx 0) (elt map (decf idx)) 'the-rest) res)) (when nkeys |
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| 188 | (push '&key res) |
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| 189 | (let ((keyvect (lfun-keyvect lfun))) |
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| 190 | (dotimes (i (length keyvect)) |
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| 191 | (push (elt keyvect i) res)))) |
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| 192 | (when allow-other-keys |
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| 193 | (push '&allow-other-keys res)))) |
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| 194 | (values (nreverse res) t)) |
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| 195 | (values nil (zerop ncells)))))) |
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| 196 | |
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| 197 | (defun arg-names-from-map (lfun pc) |
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| 198 | (multiple-value-bind (nreq nopt restp nkeys allow-other-keys |
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| 199 | optinit lexprp |
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| 200 | ncells nclosed) |
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| 201 | (function-args lfun) |
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| 202 | (declare (ignore optinit ncells allow-other-keys)) |
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| 203 | (collect ((req) |
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| 204 | (opt) |
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| 205 | (keys)) |
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| 206 | (let* ((rest nil) |
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| 207 | (map (if (> pc target::arg-check-trap-pc-limit) |
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| 208 | (car (function-symbol-map lfun))))) |
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| 209 | (if (and map pc) |
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| 210 | (let ((total (+ nreq nopt (if (or restp lexprp) 1 0) (or nkeys 0))) |
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| 211 | (idx (- (length map) nclosed))) |
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| 212 | (unless (zerop total) |
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| 213 | (progn |
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| 214 | (dotimes (x nreq) |
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| 215 | (declare (fixnum x)) |
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| 216 | (req (if (> idx 0) (elt map (decf idx)) (make-arg "ARG" x)))) |
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| 217 | (when (neq nopt 0) |
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| 218 | (dotimes (x (the fixnum nopt)) |
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| 219 | (opt (if (> idx 0) (elt map (decf idx)) (make-arg "OPT" x))))) |
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| 220 | (when (or restp lexprp) |
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| 221 | (setq rest (if (> idx 0) (elt map (decf idx)) 'the-rest))) (when nkeys |
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| 222 | (dotimes (i (the fixnum nkeys)) |
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| 223 | (keys (if (> idx 0) (elt map (decf idx)) (make-arg "KEY" i))))))))) |
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| 224 | (values (not (null map)) (req) (opt) rest (keys)))))) |
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| 225 | |
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| 226 | |
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| 227 | |
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| 228 | |
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| 229 | (defvar *req-arg-names* |
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| 230 | #(arg-0 arg-1 arg-2 arg-3 arg-4 arg-5 arg-6 arg-7 arg-8 arg-9)) |
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| 231 | |
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| 232 | (defvar *opt-arg-names* |
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| 233 | #(opt-0 opt-1 opt-2 opt-3 opt-4 opt-5 opt-6 opt-7 opt-8 opt-9)) |
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| 234 | |
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| 235 | |
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| 236 | (defun make-arg (prefix count) |
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| 237 | (cond ((and (string= prefix "ARG") (< count (length *req-arg-names*))) |
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| 238 | (svref *req-arg-names* count)) |
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| 239 | ((and (string= prefix "OPT") (< count (length *opt-arg-names*))) |
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| 240 | (svref *opt-arg-names* count)) |
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| 241 | (t (intern (format nil "~a-~d" prefix count) :CCL)))) |
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| 242 | |
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| 243 | (defun arglist-from-compiled-def (lfun &aux (res nil) argnames) |
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| 244 | (multiple-value-bind (nreq nopt restp nkeys allow-other-keys |
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| 245 | optinit lexprp |
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| 246 | ncells nclosed) |
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| 247 | (function-args lfun) |
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| 248 | (declare (ignore optinit ncells nclosed)) |
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| 249 | (flet ((push-various-args (prefix count) |
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| 250 | (dotimes (i (the fixnum count)) |
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| 251 | (push (make-arg prefix i) res)))) |
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| 252 | (declare (dynamic-extent #'push-various-args)) |
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| 253 | ;; Treat &LEXPR like &REST. |
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| 254 | (if lexprp (setq restp t lexprp nil)) |
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| 255 | (cond ((and (eq 0 (+ nreq nopt (or nkeys 0))) (not restp)) |
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| 256 | nil) |
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| 257 | (t |
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| 258 | (if argnames |
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| 259 | (setq res (reverse (butlast argnames (- (length argnames) nreq)))) |
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| 260 | (push-various-args "ARG" nreq)) |
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| 261 | (when (> nopt 0) |
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| 262 | (push '&optional res) |
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| 263 | (if argnames |
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| 264 | (setq res (append (reverse (subseq argnames nreq (+ nreq nopt))) res)) |
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| 265 | (push-various-args "OPT" nopt))) |
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| 266 | (when restp |
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| 267 | (push '&rest res) |
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| 268 | (if argnames |
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| 269 | (push (nth (+ nreq nopt) argnames) res) |
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| 270 | (push 'the-rest res))) |
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| 271 | (when nkeys |
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| 272 | (push '&key res) |
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| 273 | (let ((keyvect (lfun-keyvect lfun))) |
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| 274 | (dotimes (i (length keyvect)) |
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| 275 | (push (elt keyvect i) res)))) |
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| 276 | (when allow-other-keys |
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| 277 | (push '&allow-other-keys res)) |
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| 278 | (nreverse res)))))) |
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| 279 | |
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| 280 | ; End of arglist.lisp |
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