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;;; fdefinition.lisp
;;;
;;; Copyright (C) 2005-2006 Peter Graves
;;; $Id$
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License
;;; as published by the Free Software Foundation; either version 2
;;; of the License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
;;;
;;; As a special exception, the copyright holders of this library give you
;;; permission to link this library with independent modules to produce an
;;; executable, regardless of the license terms of these independent
;;; modules, and to copy and distribute the resulting executable under
;;; terms of your choice, provided that you also meet, for each linked
;;; independent module, the terms and conditions of the license of that
;;; module. An independent module is a module which is not derived from
;;; or based on this library. If you modify this library, you may extend
;;; this exception to your version of the library, but you are not
;;; obligated to do so. If you do not wish to do so, delete this
;;; exception statement from your version.
(in-package #:system)
(export '(record-source-information untraced-function))
(defun check-redefinition (name)
(when (and *warn-on-redefinition* (fboundp name) (not (autoloadp name)))
(when (and (symbolp name)
(source-pathname name))
;; SOURCE-PATHNAME is badly named as it is either a PATHNAMAE
;; or the symbol :TOP-LEVEL
(let ((old-source
(if (keywordp (source-pathname name))
(source-pathname name)
(probe-file (source-pathname name))))
(current-source
(if (not *source*)
:top-level
(probe-file *source*))))
(cond ((equal old-source
current-source)) ; OK
(t
(if (eq current-source :top-level)
(style-warn "redefining ~S at top level" name)
(let ((*package* +cl-package+))
(if (eq old-source :top-level)
(style-warn "redefining ~S in ~S (previously defined at top level)"
name current-source)
(style-warn "redefining ~S in ~S (previously defined in ~S)"
name current-source old-source))))))))))
;;; DEPRECATED: to be removed in abcl-1.7
(defun record-source-information (name &optional source-pathname source-position)
(unless source-pathname
(setf source-pathname (or *source* :top-level)))
(unless source-position
(setf source-position *source-position*))
(let ((source (if source-position
(cons source-pathname source-position)
source-pathname)))
(cond ((symbolp name)
(put name '%source source)))))
(defun record-source-information-for-type (name type &optional source-pathname source-position)
"Record source information on the SYS:SOURCE property for symbol with NAME
TYPE is either a symbol or list.
Source information for functions, methods, and generic functions are
represented as lists of the following form:
(:generic-function function-name)
(:function function-name)
(:method method-name qualifiers specializers)
Where FUNCTION-NAME or METHOD-NAME can be a either be of the form
'symbol or '(setf symbol).
Source information for all other forms have a symbol for TYPE which is
one of the following:
:class, :variable, :condition, :constant, :compiler-macro, :macro
:package, :structure, :type, :setf-expander, :source-transform
These values follow SBCL'S implemenation in SLIME
c.f.
"
#|
Modifications are in two places, one at the definitions, calling
record-source-information-by-type and then again in the file-compiler,
which writes forms like
(put 'source name (cons (list type pathname position) (get 'source name)))
In theory this can lead to redundancy if a fasl is loaded again and
again. I'm not sure how to fix this yet. Forms in the __loader__ get
called early in build when many of the sequence functions aren't
present. Will probably just filter when presenting in slime.
|#
(unless source-pathname
(setf source-pathname (or *source* :top-level)))
(unless source-position
(setf source-position *source-position*))
(let ((source (if source-position
(list source-pathname source-position)
(list source-pathname))))
(let ((sym (if (consp name) (second name) name))
(new `(,type ,(if (symbolp (car source)) (car source) (namestring (car source))) ,(second source))))
(if (autoloadp 'delete)
(put sym 'sys::source (cons new (get sym 'sys::source nil)))
(put sym 'sys::source (cons new (delete new (get sym 'sys::source nil)
:test (lambda(a b) (and (equalp (car a) (car b)) (equalp (second a) (second b) ))))))))))
;; Redefined in trace.lisp.
(defun trace-redefined-update (&rest args)
(declare (ignore args)))
;; Redefined in trace.lisp.
(defun untraced-function (name)
(declare (ignore name))
nil)
(%defvar '*fset-hooks* nil)
(defun fset (name function &optional source-position arglist documentation)
(cond ((symbolp name)
(check-redefinition name)
(record-source-information name nil source-position)
(when arglist
(%set-arglist function arglist))
(%set-documentation function 'function documentation)
(%set-symbol-function name function))
((setf-function-name-p name)
(check-redefinition name)
(record-source-information name nil source-position)
;; FIXME arglist documentation
(setf (get (%cadr name) 'setf-function) function))
(t
(require-type name '(or symbol (cons (eql setf) (cons symbol null))))))
(when (functionp function) ; FIXME Is this test needed?
(%set-lambda-name function name))
(dolist (hook *fset-hooks*) (ignore-errors (funcall hook name function)))
(trace-redefined-update name function)
function)
(defun fdefinition (name)
(cond ((symbolp name)
(symbol-function name))
((setf-function-name-p name)
(or (get (%cadr name) 'setf-function)
(error 'undefined-function :name name)))
(t
(require-type name '(or symbol (cons (eql setf) (cons symbol null)))))))
(defun %set-fdefinition (name function)
(fset name function))
(defsetf fdefinition %set-fdefinition)
