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revision 1.32 by heller, Wed Dec 3 22:34:50 2003 UTC revision 1.94 by mbaringer, Tue Apr 6 10:42:53 2004 UTC
# Line 1  Line 1 
1  ;;;; -*- indent-tabs-mode: nil; outline-regexp: ";;;;+" -*-  ;;;; -*- indent-tabs-mode: nil; outline-regexp: ";;;;+" -*-
3  (declaim (optimize debug))  (declaim (optimize (debug 2)))
5  (in-package :swank)  (in-package :swank-backend)
7  ;; Turn on xref. [should we?]  (in-package :lisp)
 (setf c:*record-xref-info* t)  
9  (defun without-interrupts* (body)  ;; Fix for read-sequence in 18e
10    (sys:without-interrupts (funcall body)))  #+cmu18e
11    (progn
12      (let ((s (find-symbol (string :*enable-package-locked-errors*) :lisp)))
13        (when s
14          (setf (symbol-value s) nil)))
16      (defun read-into-simple-string (s stream start end)
17        (declare (type simple-string s))
18        (declare (type stream stream))
19        (declare (type index start end))
20        (unless (subtypep (stream-element-type stream) 'character)
21          (error 'type-error
22                 :datum (read-char stream nil #\Null)
23                 :expected-type (stream-element-type stream)
24                 :format-control "Trying to read characters from a binary stream."))
25        ;; Let's go as low level as it seems reasonable.
26        (let* ((numbytes (- end start))
27               (total-bytes 0))
28          ;; read-n-bytes may return fewer bytes than requested, so we need
29          ;; to keep trying.
30          (loop while (plusp numbytes) do
31                (let ((bytes-read (system:read-n-bytes stream s start numbytes nil)))
32                  (when (zerop bytes-read)
33                    (return-from read-into-simple-string total-bytes))
34                  (incf total-bytes bytes-read)
35                  (incf start bytes-read)
36                  (decf numbytes bytes-read)))
37          total-bytes))
39      (let ((s (find-symbol (string :*enable-package-locked-errors*) :lisp)))
40        (when s
41          (setf (symbol-value s) t)))
43  (defun set-fd-non-blocking (fd)    )
44    (flet ((fcntl (fd cmd arg)  
45             (multiple-value-bind (flags errno) (unix:unix-fcntl fd cmd arg)  (in-package :swank-backend)
              (or flags  
                  (error "fcntl: ~A" (unix:get-unix-error-msg errno))))))  
     (let ((flags (fcntl fd unix:F-GETFL 0)))  
       (fcntl fd unix:F-SETFL (logior flags unix:O_NONBLOCK)))))  
48  ;;;; TCP server.  ;;;; TCP server.
50  (defun resolve-hostname (name)  (defimplementation preferred-communication-style ()
51    (let* ((hostent (ext:lookup-host-entry name))    :sigio)
53    (defimplementation create-socket (host port)
54      (ext:create-inet-listener port :stream
55                                :reuse-address t
56                                :host (resolve-hostname host)))
58    (defimplementation local-port (socket)
59      (nth-value 1 (ext::get-socket-host-and-port (socket-fd socket))))
61    (defimplementation close-socket (socket)
62      (ext:close-socket (socket-fd socket)))
64    (defimplementation accept-connection (socket)
65      #+mp (mp:process-wait-until-fd-usable socket :input)
66      (make-socket-io-stream (ext:accept-tcp-connection socket)))
68    (defvar *sigio-handlers* '()
69      "List of (key . (fn . args)) pairs to be called on SIGIO.")
71    (defun sigio-handler (signal code scp)
72      (declare (ignore signal code scp))
73      (mapc (lambda (handler) (funcall (cdr handler))) *sigio-handlers*))
75    (defun set-sigio-handler ()
76      (sys:enable-interrupt unix:sigio (lambda (signal code scp)
77                                         (sigio-handler signal code scp))))
79    (defun fcntl (fd command arg)
80      (multiple-value-bind (ok error) (unix:unix-fcntl fd command arg)
81        (cond (ok)
82              (t (error "fcntl: ~A" (unix:get-unix-error-msg error))))))
84    (defimplementation add-sigio-handler (socket fn)
85      (set-sigio-handler)
86      (let ((fd (socket-fd socket)))
87        (format *debug-io* "; Adding input handler: ~S ~%" fd)
88        (fcntl fd unix:f-setown (unix:unix-getpid))
89        (fcntl fd unix:f-setfl unix:fasync)
90        (push (cons fd fn) *sigio-handlers*)))
92    (defimplementation remove-sigio-handlers (socket)
93      (let ((fd (socket-fd socket)))
94        (setf *sigio-handlers* (delete fd *sigio-handlers* :key #'car))
95        (sys:invalidate-descriptor fd))
96      (close socket))
98    (defimplementation add-fd-handler (socket fn)
99      (let ((fd (socket-fd socket)))
100        (format *debug-io* "; Adding fd handler: ~S ~%" fd)
101        (sys:add-fd-handler fd :input (lambda (_)
102                                        _
103                                        (funcall fn)))))
105    (defimplementation remove-fd-handlers (socket)
106      (sys:invalidate-descriptor (socket-fd socket)))
108    (defimplementation make-fn-streams (input-fn output-fn)
109      (let* ((output (make-slime-output-stream output-fn))
110             (input  (make-slime-input-stream input-fn output)))
111        (values input output)))
113    ;;;;; Socket helpers.
115    (defun socket-fd (socket)
116      "Return the filedescriptor for the socket represented by SOCKET."
117      (etypecase socket
118        (fixnum socket)
119        (sys:fd-stream (sys:fd-stream-fd socket))))
121    (defun resolve-hostname (hostname)
122      "Return the IP address of HOSTNAME as an integer."
123      (let* ((hostent (ext:lookup-host-entry hostname))
124           (address (car (ext:host-entry-addr-list hostent))))           (address (car (ext:host-entry-addr-list hostent))))
125      (ext:htonl address)))      (ext:htonl address)))
127  (defun create-swank-server (port &key (reuse-address t)  (defun make-socket-io-stream (fd)
128                              (address "localhost"))    "Create a new input/output fd-stream for FD."
129    "Create a SWANK TCP server."    (sys:make-fd-stream fd :input t :output t :element-type 'base-char))
130    (let* ((ip (resolve-hostname address))  
131           (fd (ext:create-inet-listener port :stream  (defun set-fd-non-blocking (fd)
132                                         :reuse-address reuse-address    (flet ((fcntl (fd cmd arg)
133                                         :host ip)))             (multiple-value-bind (flags errno) (unix:unix-fcntl fd cmd arg)
134      (system:add-fd-handler fd :input #'accept-connection)               (or flags
135      (nth-value 1 (ext::get-socket-host-and-port fd))))                   (error "fcntl: ~A" (unix:get-unix-error-msg errno))))))
136        (let ((flags (fcntl fd unix:f-getfl 0)))
137  (defun accept-connection (socket)        (fcntl fd unix:f-setfl (logior flags unix:o_nonblock)))))
138    "Accept one Swank TCP connection on SOCKET and then close it."  
139    (setup-request-handler (ext:accept-tcp-connection socket))  
140    (sys:invalidate-descriptor socket)  ;;;; unix signals
141    (unix:unix-close socket))  
142    (defmethod call-without-interrupts (fn)
143  (defun open-stream-to-emacs ()    (sys:without-interrupts (funcall fn)))
144    "Return an output-stream to Emacs' output buffer."  
145    (let* ((ip (resolve-hostname "localhost"))  (defimplementation getpid ()
146           (listener (ext:create-inet-listener 0 :stream :host ip))    (unix:unix-getpid))
147           (port (nth-value 1 (ext::get-socket-host-and-port listener))))  
148      (unwind-protect  (defimplementation lisp-implementation-type-name ()
149           (progn    "cmucl")
            (eval-in-emacs `(slime-open-stream-to-lisp ,port))  
            (let ((fd (ext:accept-tcp-connection listener)))  
              (sys:make-fd-stream fd :output t)))  
       (ext:close-socket listener))))  
 (defvar *use-dedicated-output-stream* t)  
 (defun setup-request-handler (socket)  
   "Setup request handling for SOCKET."  
   (let* ((stream (sys:make-fd-stream socket  
                                      :input t :output t  
                                      :element-type 'base-char))  
          (input (make-slime-input-stream))  
          (output (if *use-dedicated-output-stream*  
                      (let ((*emacs-io* stream)) (open-stream-to-emacs))  
          (io (make-two-way-stream input output)))  
     (system:add-fd-handler socket  
                            :input (lambda (fd)  
                                     (declare (ignore fd))  
                                     (serve-request stream output input io)))))  
 (defun serve-request (*emacs-io* *slime-output* *slime-input* *slime-io*)  
   "Read and process a request from a SWANK client.  
 The request is read from the socket as a sexp and then evaluated."  
   (catch 'slime-toplevel  
     (with-simple-restart (abort "Return to Slime toplevel.")  
       (handler-case (read-from-emacs)  
         (slime-read-error (e)  
           (when *swank-debug-p*  
             (format *debug-io* "~&;; Connection to Emacs lost.~%;; [~A]~%" e))  
           (sys:invalidate-descriptor (sys:fd-stream-fd *emacs-io*))  
           (close *emacs-io*)))))  
152  ;;;; Stream handling  ;;;; Stream handling
154  (defstruct (slime-output-stream  (defstruct (slime-output-stream
155               (:include lisp::lisp-stream               (:include lisp::lisp-stream
156                         (lisp::misc #'sos/misc)                         (lisp::misc #'sos/misc)
157                         (lisp::out #'sos/out)                         (lisp::out #'sos/out)
158                         (lisp::sout #'sos/sout))                         (lisp::sout #'sos/sout))
159               (:conc-name sos.)               (:conc-name sos.)
160               (:print-function %print-slime-output-stream))               (:print-function %print-slime-output-stream)
161                 (:constructor make-slime-output-stream (output-fn)))
162      (output-fn nil :type function)
163    (buffer (make-string 512) :type string)    (buffer (make-string 512) :type string)
164    (index 0 :type kernel:index)    (index 0 :type kernel:index)
165    (column 0 :type kernel:index))    (column 0 :type kernel:index))
# Line 117  The request is read from the socket as a Line 183  The request is read from the socket as a
183  (defun sos/sout (stream string start end)  (defun sos/sout (stream string start end)
184    (loop for i from start below end    (loop for i from start below end
185          do (sos/out stream (aref string i))))          do (sos/out stream (aref string i))))
187  (defun sos/misc (stream operation &optional arg1 arg2)  (defun sos/misc (stream operation &optional arg1 arg2)
188    (declare (ignore arg1 arg2))    (declare (ignore arg1 arg2))
189    (case operation    (case operation
190      ((:force-output :finish-output)      ((:force-output :finish-output)
191       (let ((end (sos.index stream)))       (let ((end (sos.index stream)))
192         (unless (zerop end)         (unless (zerop end)
193           (send-to-emacs `(:read-output ,(subseq (sos.buffer stream) 0 end)))           (funcall (sos.output-fn stream) (subseq (sos.buffer stream) 0 end))
194           (setf (sos.index stream) 0))))           (setf (sos.index stream) 0))))
195      (:charpos (sos.column stream))      (:charpos (sos.column stream))
196      (:line-length 75)      (:line-length 75)
197      (:file-position nil)      (:file-position nil)
# Line 135  The request is read from the socket as a Line 201  The request is read from the socket as a
201      (t (format *terminal-io* "~&~Astream: ~S~%" stream operation))))      (t (format *terminal-io* "~&~Astream: ~S~%" stream operation))))
203  (defstruct (slime-input-stream  (defstruct (slime-input-stream
204               (:include string-stream               (:include string-stream
205                         (lisp::in #'sis/in)                         (lisp::in #'sis/in)
206                         (lisp::misc #'sis/misc))                         (lisp::misc #'sis/misc))
207               (:conc-name sis.)               (:conc-name sis.)
208               (:print-function %print-slime-output-stream))               (:print-function %print-slime-output-stream)
209    (buffer "" :type string)               (:constructor make-slime-input-stream (input-fn sos)))
210    (index 0 :type kernel:index))    (input-fn nil :type function)
211      ;; We know our sibling output stream, so that we can force it before
212      ;; requesting input.
213      (sos      nil :type slime-output-stream)
214      (buffer   ""  :type string)
215      (index    0   :type kernel:index))
217  (defun sis/in (stream eof-errorp eof-value)  (defun sis/in (stream eof-errorp eof-value)
218    (declare (ignore eof-errorp eof-value))    (declare (ignore eof-errorp eof-value))
219    (let ((index (sis.index stream))    (let ((index (sis.index stream))
220          (buffer (sis.buffer stream)))          (buffer (sis.buffer stream)))
221      (when (= index (length buffer))      (when (= index (length buffer))
222        (setf buffer (slime-read-string))        (force-output (sis.sos stream))
223          (setf buffer (funcall (sis.input-fn stream)))
224        (setf (sis.buffer stream) buffer)        (setf (sis.buffer stream) buffer)
225        (setf index 0))        (setf index 0))
226      (prog1 (aref buffer index)      (prog1 (aref buffer index)
# Line 162  The request is read from the socket as a Line 234  The request is read from the socket as a
234      (:unread (setf (aref (sis.buffer stream)      (:unread (setf (aref (sis.buffer stream)
235                           (decf (sis.index stream)))                           (decf (sis.index stream)))
236                     arg1))                     arg1))
237      (:clear-input (setf (sis.index stream) 0      (:clear-input
238         (setf (sis.index stream) 0
239                          (sis.buffer stream) ""))                          (sis.buffer stream) ""))
240      (:listen (< (sis.index stream) (length (sis.buffer stream))))      (:listen (< (sis.index stream) (length (sis.buffer stream))))
241      (:charpos nil)      (:charpos nil)
# Line 174  The request is read from the socket as a Line 247  The request is read from the socket as a
248  ;;;; Compilation Commands  ;;;; Compilation Commands
 (defvar *swank-source-info* nil  
   "Bound to a SOURCE-INFO object during compilation.")  
250  (defvar *previous-compiler-condition* nil  (defvar *previous-compiler-condition* nil
251    "Used to detect duplicates.")    "Used to detect duplicates.")
253  (defvar *previous-context* nil  (defvar *previous-context* nil
254    "Previous compiler error context.")    "Previous compiler error context.")
 (defvar *compiler-notes* '()  
   "List of compiler notes for the last compilation unit.")  
256  (defvar *buffer-name* nil)  (defvar *buffer-name* nil)
257  (defvar *buffer-start-position* nil)  (defvar *buffer-start-position* nil)
258  (defvar *buffer-substring* nil)  (defvar *buffer-substring* nil)
 (defvar *compile-filename* nil)  
261  ;;;;; Trapping notes  ;;;;; Trapping notes
267  craft our own error messages, which can omit a lot of redundant  craft our own error messages, which can omit a lot of redundant
268  information."  information."
269    (unless (eq condition *previous-compiler-condition*)    (unless (eq condition *previous-compiler-condition*)
270      (let ((context (or (c::find-error-context nil) *previous-context*)))      (let ((context (c::find-error-context nil)))
271        (setq *previous-compiler-condition* condition)        (setq *previous-compiler-condition* condition)
272        (setq *previous-context* context)        (setq *previous-context* context)
273        (signal-compiler-condition condition context))))        (signal-compiler-condition condition context))))
# Line 211  information." Line 277  information."
277             'compiler-condition             'compiler-condition
278             :original-condition condition             :original-condition condition
279             :severity (severity-for-emacs condition)             :severity (severity-for-emacs condition)
280             :message (brief-compiler-message-for-emacs condition context)             :short-message (brief-compiler-message-for-emacs condition)
281               :message (long-compiler-message-for-emacs condition context)
282             :location (compiler-note-location context))))             :location (compiler-note-location context))))
284  (defun severity-for-emacs (condition)  (defun severity-for-emacs (condition)
# Line 221  information." Line 288  information."
288      (c::style-warning :note)      (c::style-warning :note)
289      (c::warning :warning)))      (c::warning :warning)))
291  (defun brief-compiler-message-for-emacs (condition error-context)  (defun brief-compiler-message-for-emacs (condition)
292    "Briefly describe a compiler error for Emacs.    "Briefly describe a compiler error for Emacs.
293  When Emacs presents the message it already has the source popped up  When Emacs presents the message it already has the source popped up
294  and the source form highlighted. This makes much of the information in  and the source form highlighted. This makes much of the information in
295  the error-context redundant."  the error-context redundant."
296      (princ-to-string condition))
298    (defun long-compiler-message-for-emacs (condition error-context)
299      "Describe a compiler error for Emacs including context information."
300    (declare (type (or c::compiler-error-context null) error-context))    (declare (type (or c::compiler-error-context null) error-context))
301    (multiple-value-bind (enclosing source)    (multiple-value-bind (enclosing source)
302        (if error-context        (if error-context
# Line 234  the error-context redundant." Line 305  the error-context redundant."
305      (format nil "~@[--> ~{~<~%--> ~1:;~A~> ~}~%~]~@[~{==>~%~A~^~%~}~]~A"      (format nil "~@[--> ~{~<~%--> ~1:;~A~> ~}~%~]~@[~{==>~%~A~^~%~}~]~A"
306              enclosing source condition)))              enclosing source condition)))
308  (defun compiler-note-location (context)  (defun compiler-note-location (context)
309    (cond (context    (cond (context
310           (resolve-note-location           (resolve-note-location
# Line 270  the error-context redundant." Line 340  the error-context redundant."
340                                    (pos (eql nil))                                    (pos (eql nil))
341                                    (path (eql nil))                                    (path (eql nil))
342                                    (source (eql nil)))                                    (source (eql nil)))
343    (cond (buffer    (list :error "No error location available"))
344           (make-location (list :buffer buffer)  
345                          (list :position *buffer-start-position*)))  (defimplementation call-with-compilation-hooks (function)
346          (*compile-file-truename*    (let ((*previous-compiler-condition* nil)
347           (make-location (list :file (namestring *compile-file-truename*))          (*previous-context* nil)
348                          (list :position 0)))          (*print-readably* nil))
          (make-location (list :file *compile-filename*) (list :position 0)))  
          (list :error "No error location available"))))  
 (defmacro with-compilation-hooks (() &body body)  
   "Execute BODY and record the set of compiler notes."  
   `(let ((*previous-compiler-condition* nil)  
          (*previous-context* nil)  
          (*print-readably* nil))  
349      (handler-bind ((c::compiler-error #'handle-notification-condition)      (handler-bind ((c::compiler-error #'handle-notification-condition)
350                     (c::style-warning  #'handle-notification-condition)                     (c::style-warning  #'handle-notification-condition)
351                     (c::warning        #'handle-notification-condition))                     (c::warning        #'handle-notification-condition))
352        ,@body)))        (funcall function))))
354  (defmethod compile-file-for-emacs (filename load-p)  (defimplementation swank-compile-file (filename load-p)
355    (clear-xref-info filename)    (clear-xref-info filename)
356    (with-compilation-hooks ()    (with-compilation-hooks ()
357      (let ((*buffer-name* nil)      (let ((*buffer-name* nil))
358            (*compile-filename* filename))        (compile-file filename :load load-p))))
         (compile-file filename :load load-p))))  
360  (defmethod compile-string-for-emacs (string &key buffer position)  (defimplementation swank-compile-string (string &key buffer position)
361    (with-compilation-hooks ()    (with-compilation-hooks ()
362      (let ((*package* *buffer-package*)      (let ((*buffer-name* buffer)
           (*compile-filename* nil)  
           (*buffer-name* buffer)  
363            (*buffer-start-position* position)            (*buffer-start-position* position)
364            (*buffer-substring* string))            (*buffer-substring* string))
365        (with-input-from-string (stream string)        (with-input-from-string (stream string)
# Line 315  the error-context redundant." Line 372  the error-context redundant."
373  ;;;; XREF  ;;;; XREF
375  (defun lookup-xrefs (finder name)  (defmacro defxref (name function)
376    (xref-results-for-emacs (funcall finder (from-string name))))    `(defimplementation ,name (name)
377        (xref-results (,function name))))
378  (defslimefun who-calls (function-name)  
379    "Return the places where FUNCTION-NAME is called."  (defxref who-calls      xref:who-calls)
380    (lookup-xrefs #'xref:who-calls function-name))  (defxref who-references xref:who-references)
381    (defxref who-binds      xref:who-binds)
382  (defslimefun who-references (variable)  (defxref who-sets       xref:who-sets)
   "Return the places where the global variable VARIABLE is referenced."  
   (lookup-xrefs #'xref:who-references variable))  
 (defslimefun who-binds (variable)  
   "Return the places where the global variable VARIABLE is bound."  
   (lookup-xrefs #'xref:who-binds variable))  
 (defslimefun who-sets (variable)  
   "Return the places where the global variable VARIABLE is set."  
   (lookup-xrefs #'xref:who-sets variable))  
384  #+cmu19  #+cmu19
385  (progn  (progn
386    (defslimefun who-macroexpands (macro)    (defxref who-macroexpands xref:who-macroexpands)
387      "Return the places where MACRO is expanded."    ;; XXX
388      (lookup-xrefs #'xref:who-macroexpands macro))    (defimplementation who-specializes (symbol)
389        (let* ((methods (xref::who-specializes (find-class symbol)))
390    (defslimefun who-specializes (class)             (locations (mapcar #'method-location methods)))
391      "Return the methods with specializers for CLASS."        (mapcar #'list methods locations))))
392      (let* ((methods (xref::who-specializes (find-class (from-string class))))  
393             (locations (mapcar #'method-source-location methods)))  (defun xref-results (contexts)
394        (group-xrefs (mapcar (lambda (m l)    (mapcar (lambda (xref)
395                               (cons (let ((*print-pretty* nil))              (list (xref:xref-context-name xref)
396                                       (to-string m))                    (resolve-xref-location xref)))
397                                     l))            contexts))
                            methods locations))))  
399  (defun resolve-xref-location (xref)  (defun resolve-xref-location (xref)
400    (let ((name (xref:xref-context-name xref))    (let ((name (xref:xref-context-name xref))
# Line 366  the error-context redundant." Line 411  the error-context redundant."
411             `(:error ,(format nil "Unkown source location: ~S ~S ~S "             `(:error ,(format nil "Unkown source location: ~S ~S ~S "
412                               name file source-path))))))                               name file source-path))))))
 (defun xref-results-for-emacs (contexts)  
   "Prepare a list of xref contexts for Emacs.  
 The result is a list of xrefs:  
 group       ::= (FILENAME . ({reference}+))  
   (let ((xrefs '()))  
     (dolist (cxt contexts)  
       (let ((name (xref:xref-context-name cxt)))  
         (push (cons (to-string name)  
                     (resolve-xref-location cxt))  
     (group-xrefs xrefs)))  
 (defun location-buffer= (location1 location2)  
   (equalp location1 location2))  
 (defun file-xrefs-for-emacs (unix-filename contexts)  
   "Return a summary of the references from a particular file.  
 The result is a list of the form (FILENAME ((REFERRER SOURCE-PATH) ...))"  
   (list unix-filename  
         (loop for context in (sort-contexts-by-source-path contexts)  
               collect (list (let ((*print-pretty* nil))  
                               (to-string (xref:xref-context-name context)))  
                             (xref:xref-context-source-path context)))))  
 (defun sort-contexts-by-source-path (contexts)  
   "Sort xref contexts by lexical position of source-paths.  
 It is assumed that all contexts belong to the same file."  
   (sort contexts #'source-path< :key #'xref:xref-context-source-path))  
 (defun source-path< (path1 path2)  
   "Return true if PATH1 is lexically before PATH2."  
   (and (every #'< path1 path2)  
        (< (length path1) (length path2))))  
414  (defun clear-xref-info (namestring)  (defun clear-xref-info (namestring)
415    "Clear XREF notes pertaining to FILENAME.    "Clear XREF notes pertaining to NAMESTRING.
416  This is a workaround for a CMUCL bug: XREF records are cumulative."  This is a workaround for a CMUCL bug: XREF records are cumulative."
417    (let ((filename (parse-namestring namestring)))    (when c:*record-xref-info*
418      (when c:*record-xref-info*      (let ((filename (truename namestring)))
419        (dolist (db (list xref::*who-calls*        (dolist (db (list xref::*who-calls*
420                          #+cmu19 xref::*who-is-called*                          #+cmu19 xref::*who-is-called*
421                          #+cmu19 xref::*who-macroexpands*                          #+cmu19 xref::*who-macroexpands*
# Line 415  This is a workaround for a CMUCL bug: XR Line 423  This is a workaround for a CMUCL bug: XR
423                          xref::*who-binds*                          xref::*who-binds*
424                          xref::*who-sets*))                          xref::*who-sets*))
425          (maphash (lambda (target contexts)          (maphash (lambda (target contexts)
426                       ;; XXX update during traversal?
427                     (setf (gethash target db)                     (setf (gethash target db)
428                           (delete-if                           (delete filename contexts
429                            (lambda (ctx)                                   :key #'xref:xref-context-file
430                              (xref-context-derived-from-p ctx filename))                                   :test #'equalp)))
431                   db)))))                   db)))))
 (defun xref-context-derived-from-p (context filename)  
   (let ((xref-file (xref:xref-context-file context)))  
     (and xref-file (pathname= filename xref-file))))  
 (defun pathname= (&rest pathnames)  
   "True if PATHNAMES refer to the same file."  
   (apply #'string= (mapcar #'unix-truename pathnames)))  
433  (defun unix-truename (pathname)  (defun unix-truename (pathname)
434    (ext:unix-namestring (truename pathname)))    (ext:unix-namestring (truename pathname)))
# Line 499  constant pool." Line 499  constant pool."
499      (map-caller-code-components function spaces      (map-caller-code-components function spaces
500                                  (lambda (code) (push code referrers)))                                  (lambda (code) (push code referrers)))
501      referrers))      referrers))
503  (defun debug-info-definitions (debug-info)  (defun debug-info-definitions (debug-info)
504    "Return the defintions for a debug-info.  This should only be used    "Return the defintions for a debug-info.  This should only be used
505  for code-object without entry points, i.e., byte compiled  for code-object without entry points, i.e., byte compiled
# Line 512  code (are theree others?)" Line 512  code (are theree others?)"
512      (destructuring-bind (first) source      (destructuring-bind (first) source
513        (ecase (c::debug-source-from first)        (ecase (c::debug-source-from first)
514          (:file          (:file
515           (list           (list (list name
516            (cons name                       (make-location
517                  (make-location                        (list :file (unix-truename (c::debug-source-name first)))
518                   (list :file (unix-truename (c::debug-source-name first)))                        (list :function-name name)))))))))
                  (list :function-name name)))))))))  
520  (defun code-component-entry-points (code)  (defun code-component-entry-points (code)
521    "Return a list ((NAME . LOCATION) ...) of function definitons for    "Return a list ((NAME LOCATION) ...) of function definitons for
522  the code omponent CODE."  the code omponent CODE."
523    (delete-duplicates    (delete-duplicates
524     (loop for e = (kernel:%code-entry-points code)     (loop for e = (kernel:%code-entry-points code)
525           then (kernel::%function-next e)           then (kernel::%function-next e)
526           while e           while e
527           collect (cons (to-string (kernel:%function-name e))           collect (list (kernel:%function-name e)
528                         (function-source-location e)))                         (function-location e)))
529     :test #'equal))     :test #'equal))
531  (defslimefun list-callers (symbol-name)  (defimplementation list-callers (symbol)
532    "Return a list ((FILE . ((NAME . LOCATION) ...)) ...) of callers."    "Return a list ((NAME LOCATION) ...) of callers."
533    (let ((components (function-callers (from-string symbol-name)))    (let ((components (function-callers symbol))
534          (xrefs '()))          (xrefs '()))
535      (dolist (code components)      (dolist (code components)
536        (let* ((entry (kernel:%code-entry-points code))        (let* ((entry (kernel:%code-entry-points code))
# Line 541  the code omponent CODE." Line 540  the code omponent CODE."
540                         (debug-info-definitions                         (debug-info-definitions
541                          (kernel:%code-debug-info code)))))                          (kernel:%code-debug-info code)))))
542          (setq xrefs (nconc defs xrefs))))          (setq xrefs (nconc defs xrefs))))
543      (group-xrefs xrefs)))      xrefs))
545    (defimplementation list-callees (symbol)
546      (let ((fns (function-callees symbol)))
547        (mapcar (lambda (fn)
548                  (list (kernel:%function-name fn)
549                        (function-location fn)))
550                fns)))
552  (defslimefun list-callees (symbol-name)  
   (let ((fns (function-callees (from-string symbol-name))))  
     (group-xrefs (mapcar (lambda (fn)  
                            (cons (to-string (kernel:%function-name fn))  
                                  (function-source-location fn)))  
553  ;;;; Definitions  ;;;; Definitions
555  (defvar *debug-definition-finding* t  (defvar *debug-definition-finding* nil
556    "When true don't handle errors while looking for definitions.    "When true don't handle errors while looking for definitions.
557  This is useful when debugging the definition-finding code.")  This is useful when debugging the definition-finding code.")
559  (defmacro safe-definition-finding (&body body)  (defmacro safe-definition-finding (&body body)
560    "Execute BODY ignoring errors.  Return a the source location    "Execute BODY ignoring errors.  Return the source location returned
561  returned by BODY or if an error occurs a description of the error.  by BODY or if an error occurs a description of the error.  The second
562  The second return value is the condition or nil."  return value is the condition or nil."
563    `(flet ((body () ,@body))    `(flet ((body () ,@body))
564      (if *debug-definition-finding*      (if *debug-definition-finding*
565          (body)          (body)
566          (handler-case (values (progn ,@body) nil)          (handler-case (values (progn ,@body) nil)
567            (error (c) (values (list :error (princ-to-string c)) c))))))            (error (c) (values (list :error (princ-to-string c)) c))))))
569  (defun function-first-code-location (function)  (defun function-first-code-location (function)
570    (and (function-has-debug-function-p function)    (and (function-has-debug-function-p function)
571         (di:debug-function-start-location         (di:debug-function-start-location
# Line 580  The second return value is the condition Line 579  The second return value is the condition
579             (vm::find-code-object function))             (vm::find-code-object function))
580         (not (eq closure function))))         (not (eq closure function))))
582    (defun genericp (fn)
583      (typep fn 'generic-function))
585  (defun struct-closure-p (function)  (defun struct-closure-p (function)
586    (or (function-code-object= function #'kernel::structure-slot-accessor)    (or (function-code-object= function #'kernel::structure-slot-accessor)
587        (function-code-object= function #'kernel::structure-slot-setter)        (function-code-object= function #'kernel::structure-slot-setter)
# Line 598  The second return value is the condition Line 600  The second return value is the condition
600              function)))              function)))
601      (kernel:layout-info (find-layout function))))      (kernel:layout-info (find-layout function))))
603  (defun dd-source-location (dd)  (defun dd-location (dd)
604    (let ((constructor (or (kernel:dd-default-constructor dd)    (let ((constructor (or (kernel:dd-default-constructor dd)
605                           (car (kernel::dd-constructors dd)))))                           (car (kernel::dd-constructors dd)))))
606      (when (or (not constructor) (and (consp constructor)      (when (or (not constructor) (and (consp constructor)
607                                       (not (car constructor))))                                       (not (car constructor))))
608        (error "Cannot locate struct without constructor: ~S"        (error "Cannot locate struct without constructor: ~S"
609               (kernel::dd-name dd)))               (kernel::dd-name dd)))
610      (function-source-location      (function-location
611       (coerce (if (consp constructor) (car constructor) constructor)       (coerce (if (consp constructor) (car constructor) constructor)
612               'function))))               'function))))
614  (defun genericp (fn)  (defun function-location (function)
615    (typep fn 'generic-function))    "Return the source location for FUNCTION."
 (defun gf-definition-location (gf)  
   (flet ((guess-source-file (faslfile)  
             (merge-pathnames (make-pathname :type "lisp")  
     (let ((def-source (pcl::definition-source gf))  
           (name (string (pcl:generic-function-name gf))))  
       (etypecase def-source  
         (pathname (make-location  
                    `(:file ,(guess-source-file def-source))  
                    `(:function-name ,name)))  
          (destructuring-bind ((dg name) pathname) def-source  
            (declare (ignore dg))  
            (etypecase pathname  
               (make-location `(:file ,(guess-source-file pathname))  
                              `(:function-name ,(string name)))))))))))  
 (defun method-source-location (method)  
   (function-source-location (or (pcl::method-fast-function method)  
                                 (pcl:method-function method))))  
 (defun gf-method-locations (gf)  
   (let ((ms (pcl::generic-function-methods gf)))  
     (mapcar #'method-source-location ms)))  
 (defun gf-source-locations (gf)  
   (list* (gf-definition-location gf)  
          (gf-method-locations gf)))  
 (defun function-source-locations (function)  
   "Return a list of source locations for FUNCTION."  
616    ;; First test if FUNCTION is a closure created by defstruct; if so    ;; First test if FUNCTION is a closure created by defstruct; if so
617    ;; extract the defstruct-description (dd) from the closure and find    ;; extract the defstruct-description (dd) from the closure and find
618    ;; the constructor for the struct.  Defstruct creates a defun for    ;; the constructor for the struct.  Defstruct creates a defun for
# Line 654  The second return value is the condition Line 622  The second return value is the condition
622    ;; For an ordinary function we return the source location of the    ;; For an ordinary function we return the source location of the
623    ;; first code-location we find.    ;; first code-location we find.
624    (cond ((struct-closure-p function)    (cond ((struct-closure-p function)
625           (list           (safe-definition-finding
626            (safe-definition-finding            (dd-location (struct-closure-dd function))))
            (dd-source-location (struct-closure-dd function)))))  
627          ((genericp function)          ((genericp function)
628           (gf-source-locations function))           (gf-location function))
629          (t          (t
630           (list           (multiple-value-bind (code-location error)
631            (multiple-value-bind (code-location error)               (safe-definition-finding (function-first-code-location function))
632                (safe-definition-finding (function-first-code-location function))             (cond (error (list :error (princ-to-string error)))
633              (cond (error (list :error (princ-to-string error)))                   (t (code-location-source-location code-location)))))))
634                    (t (code-location-source-location code-location))))))))  
635    ;; XXX maybe special case setters/getters
636  (defun function-source-location (function)  (defun method-location (method)
637    (destructuring-bind (first) (function-source-locations function)    (function-location (or (pcl::method-fast-function method)
638      first))                           (pcl:method-function method))))
640  (defslimefun find-function-locations (symbol-name)  (defun method-dspec (method)
641    "Return a list of source-locations for SYMBOL-NAME's functions."    (let* ((gf (pcl:method-generic-function method))
642    (multiple-value-bind (symbol foundp) (find-symbol-designator symbol-name)           (name (pcl:generic-function-name gf))
643      (cond ((not foundp)           (specializers (pcl:method-specializers method))
644             (list (list :error (format nil "Unkown symbol: ~A" symbol-name))))           (qualifiers (pcl:method-qualifiers method)))
645            ((macro-function symbol)      `(method ,name ,@qualifiers ,(pcl::unparse-specializers specializers))))
646             (function-source-locations (macro-function symbol)))  
647            ((special-operator-p symbol)  (defun method-definition (method)
648             (list (list :error (format nil "~A is a special-operator" symbol))))    (list (method-dspec method)
649            ((fboundp symbol)          (method-location method)))
650             (function-source-locations (coerce symbol 'function)))  
651            (t (list (list :error  (defun gf-location (gf)
652                           (format nil "Symbol not fbound: ~A" symbol-name))))    (definition-source-location gf (pcl::generic-function-name gf)))
653            )))  
654    (defun gf-method-definitions (gf)
655      (mapcar #'method-definition (pcl::generic-function-methods gf)))
657    (defun function-definitions (name)
658      "Return definitions for NAME in the \"function namespace\", i.e.,
659    regular functions, generic functions, methods and macros.
660    NAME can any valid function name (e.g, (setf car))."
661      (cond ((and (symbolp name) (macro-function name))
662             (list `((defmacro ,name)
663                     ,(function-location (macro-function name)))))
664            ((and (symbolp name) (special-operator-p name))
665             (list `((:special-operator ,name)
666                     (:error ,(format nil "Special operator: ~S" name)))))
667            ((and (ext:valid-function-name-p name)
668                  (ext:info :function :definition name))
669             (let ((function (coerce name 'function)))
670               (cond ((genericp function)
671                      (cons (list `(defgeneric ,name)
672                                  (function-location function))
673                            (gf-method-definitions function)))
674                     (t (list (list `(function ,name)
675                                    (function-location function)))))))))
677    (defun maybe-make-definition (function kind name)
678      (if function
679          (list (list `(,kind ,name) (function-location function)))))
681    (defun type-definitions (name)
682      (maybe-make-definition (ext:info :type :expander name) 'deftype name))
684    (defun find-dd (name)
685      (let ((layout (ext:info :type :compiler-layout name)))
686        (if layout
687            (kernel:layout-info layout))))
689    (defun condition-class-location (class)
690      (let ((slots (conditions::condition-class-slots class))
691            (name (conditions::condition-class-name class)))
692        (cond ((null slots)
693               `(:error ,(format nil "No location info for condition: ~A" name)))
694              (t
695               (let* ((slot (first slots))
696                      (gf (fdefinition
697                           (first (conditions::condition-slot-readers slot)))))
698                 (method-location
699                  (first
700                   (pcl:compute-applicable-methods-using-classes
701                    gf (list (find-class name))))))))))
703    (defun class-location (class)
704      (definition-source-location class (pcl:class-name class)))
706    (defun make-name-in-file-location (file string)
707      (multiple-value-bind (filename c)
708          (ignore-errors
709            (unix-truename (merge-pathnames (make-pathname :type "lisp")
710                                            file)))
711        (cond (filename (make-location `(:file ,filename)
712                                       `(:function-name ,string)))
713              (t (list :error (princ-to-string c))))))
715    (defun resolve-file-source-location (location)
716      (let ((filename (c::file-source-location-pathname location))
717            (tlf-number (c::file-source-location-tlf-number location))
718            (form-number (c::file-source-location-tlf-number location)))
719        (with-open-file (s filename)
720          (let ((pos (form-number-stream-position tlf-number form-number s)))
721            (make-location `(:file ,(unix-truename filename))
722                           `(:position ,(1+ pos)))))))
724    (defun resolve-source-location (location)
725      (let ((info (c::source-location-user-info location))
726            (tlf-number (c::source-location-tlf-number location))
727            (form-number (c::source-location-tlf-number location)))
728        ;; XXX duplication in frame-source-location
729        (assert (info-from-emacs-buffer-p info))
730        (destructuring-bind (&key emacs-buffer emacs-buffer-string
731                                  emacs-buffer-offset) info
732          (with-input-from-string (s emacs-buffer-string)
733            (let ((pos (form-number-stream-position tlf-number form-number s)))
734              (make-location `(:buffer ,emacs-buffer)
735                             `(:position ,(+ emacs-buffer-offset pos))))))))
737    (defun definition-source-location (object name)
738      (let ((source (pcl::definition-source object)))
739        (etypecase source
740          (null
741           `(:error ,(format nil "No source info for: ~A" object)))
742          (c::file-source-location
743           (resolve-file-source-location source))
744          (c::source-location
745           (resolve-source-location source))
746          (pathname
747           (make-name-in-file-location source name))
748          (cons
749           (destructuring-bind ((dg name) pathname) source
750             (declare (ignore dg))
751             (etypecase pathname
752               (pathname (make-name-in-file-location pathname (string name)))
753               (null `(:error ,(format nil "Cannot resolve: ~S" source)))))))))
755    (defun class-definitions (name)
756      (if (symbolp name)
757          (let ((class (kernel::find-class name nil)))
758            (etypecase class
759              (null '())
760              (kernel::structure-class
761               (list (list `(defstruct ,name) (dd-location (find-dd name)))))
762              (conditions::condition-class
763               (list (list `(define-condition ,name)
764                           (condition-class-location class))))
765              (kernel::standard-class
766               (list (list `(defclass ,name)
767                           (class-location (find-class name)))))
768              (kernel::built-in-class
769               (list (list `(kernel::define-type-class ,name)
770                           `(:error
771                             ,(format nil "No source info for built-in-class: ~A"
772                                      name)))))))))
774    (defun setf-definitions (name)
775      (let ((function (or (ext:info :setf :inverse name)
776                          (ext:info :setf :expander name))))
777        (if function
778            (list (list `(setf ,name)
779                        (function-location (coerce function 'function)))))))
781    (defun compiler-macro-definitions (symbol)
782      (maybe-make-definition (compiler-macro-function symbol)
783                             'define-compiler-macro
784                             symbol))
786    (defun source-transform-definitions (name)
787      (maybe-make-definition (ext:info :function :source-transform name)
788                             'c:def-source-transform
789                             name))
791    (defun function-info-definitions (name)
792      (let ((info (ext:info :function :info name)))
793        (if info
794            (append (loop for transform in (c::function-info-transforms info)
795                          collect (list `(c:deftransform ,name
796                                          ,(c::type-specifier
797                                            (c::transform-type transform)))
798                                        (function-location (c::transform-function
799                                                            transform))))
800                    (maybe-make-definition (c::function-info-derive-type info)
801                                           'c::derive-type name)
802                    (maybe-make-definition (c::function-info-optimizer info)
803                                           'c::optimizer name)
804                    (maybe-make-definition (c::function-info-ltn-annotate info)
805                                           'c::ltn-annotate name)
806                    (maybe-make-definition (c::function-info-ir2-convert info)
807                                           'c::ir2-convert name)
808                    (loop for template in (c::function-info-templates info)
809                          collect (list `(c::vop ,(c::template-name template))
810                                        (function-location
811                                         (c::vop-info-generator-function
812                                          template))))))))
814    (defun ir1-translator-definitions (name)
815      (maybe-make-definition (ext:info :function :ir1-convert name)
816                             'c:def-ir1-translator name))
818    (defimplementation find-definitions (name)
819      (append (function-definitions name)
820              (setf-definitions name)
821              (class-definitions name)
822              (type-definitions name)
823              (compiler-macro-definitions name)
824              (source-transform-definitions name)
825              (function-info-definitions name)
826              (ir1-translator-definitions name)))
828  ;;;; Documentation.  ;;;; Documentation.
830  (defmethod describe-symbol-for-emacs (symbol)  (defimplementation describe-symbol-for-emacs (symbol)
831    (let ((result '()))    (let ((result '()))
832      (flet ((doc (kind)      (flet ((doc (kind)
833               (or (documentation symbol kind) :not-documented))               (or (documentation symbol kind) :not-documented))
# Line 734  The second return value is the condition Line 873  The second return value is the condition
873                         (doc nil)))                         (doc nil)))
874        result)))        result)))
876  (defslimefun describe-setf-function (symbol-name)  (defimplementation describe-definition (symbol namespace)
877    (print-description-to-string    (ecase namespace
878     (or (ext:info setf inverse (from-string symbol-name))      (:variable
879         (ext:info setf expander (from-string symbol-name)))))       (describe symbol))
880        ((:function :generic-function)
881  (defslimefun describe-type (symbol-name)       (describe (symbol-function symbol)))
882    (print-description-to-string      (:setf
883     (kernel:values-specifier-type (from-string symbol-name))))       (describe (or (ext:info setf inverse symbol))
884                   (ext:info setf expander symbol)))
885  (defslimefun describe-class (symbol-name)      (:type
886    (print-description-to-string (find-class (from-string symbol-name) nil)))       (describe (kernel:values-specifier-type symbol)))
887        (:class
888  (defslimefun describe-alien-type (symbol-name)       (describe (find-class symbol)))
889    (let ((name (from-string symbol-name)))      (:alien-type
890      (ecase (ext:info :alien-type :kind name)       (ecase (ext:info :alien-type :kind symbol)
891        (:primitive         (:primitive
892         (print-description-to-string          (describe (let ((alien::*values-type-okay* t))
893          (let ((alien::*values-type-okay* t))                      (funcall (ext:info :alien-type :translator symbol)
894            (funcall (ext:info :alien-type :translator name) (list name)))))                               (list symbol)))))
895        ((:defined)         ((:defined)
896         (print-description-to-string (ext:info :alien-type :definition name)))          (describe (ext:info :alien-type :definition symbol)))
897        (:unknown         (:unknown
898         (format nil "Unkown alien type: ~A" symbol-name)))))          (format nil "Unkown alien type: ~S" symbol))))
899        (:alien-struct
900  (defmacro %describe-alien (symbol-name namespace)       (describe (ext:info :alien-type :struct symbol)))
901    `(print-description-to-string      (:alien-union
902      (ext:info :alien-type ,namespace (from-string ,symbol-name))))       (describe (ext:info :alien-type :union symbol)))
903        (:alien-enum
904  (defslimefun describe-alien-struct (symbol-name)       (describe (ext:info :alien-type :enum symbol)))))
905    (%describe-alien symbol-name :struct))  
906    (defun debug-variable-symbol-or-deleted (var)
907  (defslimefun describe-alien-union (symbol-name)    (etypecase var
908    (%describe-alien symbol-name :union))      (di:debug-variable
909         (di::debug-variable-symbol var))
910  (defslimefun describe-alien-enum (symbol-name)      ((member :deleted)
911    (%describe-alien symbol-name :enum))       '#:deleted)))
913  (defmethod arglist-string (fname)  (defun debug-function-arglist (debug-function)
914    "Return a string describing the argument list for FNAME.    (let ((args (di::debug-function-lambda-list debug-function))
915  The result has the format \"(...)\"."          (required '())
916    (declare (type string fname))          (optional '())
917    (multiple-value-bind (function condition)          (rest '())
918        (ignore-errors (values (find-symbol-designator fname *buffer-package*)))          (key '()))
919      (when condition      ;; collect the names of debug-vars
920        (return-from arglist-string (format nil "(-- ~A)" condition)))      (dolist (arg args)
921      (let ((arglist        (etypecase arg
922             (if (not (or (fboundp function)          (di::debug-variable
923                          (functionp function)))           (push (di::debug-variable-symbol arg) required))
924                 "(-- <Unknown-Function>)"          ((member :deleted)
925                 (let* ((fun (or (macro-function function)           (push ':deleted required))
926                                 (symbol-function function)))          (cons
927                        (df (di::function-debug-function fun))           (ecase (car arg)
928                        (arglist (kernel:%function-arglist fun)))             (:keyword
929                   (cond ((eval:interpreted-function-p fun)              (push (second arg) key))
930                          (eval:interpreted-function-arglist fun))             (:optional
931                         ((pcl::generic-function-p fun)              (push (debug-variable-symbol-or-deleted (second arg)) optional))
932                          (pcl::gf-pretty-arglist fun))             (:rest
933                         (arglist arglist)              (push (debug-variable-symbol-or-deleted (second arg)) rest))))))
934                         ;; this should work both for      ;; intersperse lambda keywords as needed
935                         ;; compiled-debug-function and for      (append (nreverse required)
936                         ;; interpreted-debug-function              (if optional (cons '&optional (nreverse optional)))
937                         (df (di::debug-function-lambda-list df))              (if rest (cons '&rest (nreverse rest)))
938                         (t "(<arglist-unavailable>)"))))))              (if key (cons '&key (nreverse key))))))
939        (if (stringp arglist)  
940            arglist  (defun symbol-debug-function-arglist (fname)
941            (to-string arglist)))))    "Return FNAME's debug-function-arglist and %function-arglist.
942    A utility for debugging DEBUG-FUNCTION-ARGLIST."
943      (let ((fn (fdefinition fname)))
944        (values (debug-function-arglist (di::function-debug-function fn))
945                (kernel:%function-arglist (kernel:%function-self fn)))))
947    (defimplementation arglist (symbol)
948      (let* ((fun (or (macro-function symbol)
949                      (symbol-function symbol)))
950             (arglist
951              (cond ((eval:interpreted-function-p fun)
952                     (eval:interpreted-function-arglist fun))
953                    ((pcl::generic-function-p fun)
954                     (pcl:generic-function-lambda-list fun))
955                    ((kernel:%function-arglist (kernel:%function-self fun)))
956                    ;; this should work both for
957                    ;; compiled-debug-function and for
958                    ;; interpreted-debug-function
959                    (t (let ((df (di::function-debug-function fun)))
960                         (if df
961                             (debug-function-arglist df)
962                             "(<arglist-unavailable>)"))))))
963        (check-type arglist (or list string))
964        arglist))
967  ;;;; Miscellaneous.  ;;;; Miscellaneous.
969  (defmethod macroexpand-all (form)  (defimplementation macroexpand-all (form)
970    (walker:macroexpand-all form))    (walker:macroexpand-all form))
972  (defun tracedp (fname)  ;; (in-package :c)
973    (gethash (debug::trace-fdefinition fname)  ;;
974             debug::*traced-functions*))  ;; (defun swank-backend::expand-ir1-top-level (form)
975    ;;   "A scaled down version of the first pass of the compiler."
976  (defslimefun toggle-trace-fdefinition (fname-string)  ;;   (with-compilation-unit ()
977    (let ((fname (from-string fname-string)))  ;;     (let* ((*lexical-environment*
978      (cond ((tracedp fname)  ;;             (make-lexenv :default (make-null-environment)
979             (debug::untrace-1 fname)  ;;                          :cookie *default-cookie*
980             (format nil "~S is now untraced." fname))  ;;                          :interface-cookie *default-interface-cookie*))
981            (t  ;;            (*source-info* (make-lisp-source-info form))
982             (debug::trace-1 fname (debug::make-trace-info))  ;;            (*block-compile* nil)
983             (format nil "~S is now traced." fname)))))  ;;            (*block-compile-default* nil))
984    ;;       (with-ir1-namespace
985    ;;           (clear-stuff)
986    ;;         (find-source-paths form 0)
987    ;;         (ir1-top-level form '(0) t)))))
988    ;;
989    ;; (in-package :swank-backend)
990    ;;
991    ;; (defun print-ir1-converted-blocks (form)
992    ;;   (with-output-to-string (*standard-output*)
993    ;;     (c::print-all-blocks (expand-ir1-top-level (from-string form)))))
994    ;;
995    ;; (defun print-compilation-trace (form)
996    ;;   (with-output-to-string (*standard-output*)
997    ;;     (with-input-from-string (s form)
998    ;;       (ext:compile-from-stream s
999    ;;                                :verbose t
1000    ;;                                :progress t
1001    ;;                                :trace-stream *standard-output*))))
1003  (defslimefun set-default-directory (directory)  (defimplementation set-default-directory (directory)
1004    (setf (ext:default-directory) (namestring directory))    (setf (ext:default-directory) (namestring directory))
1005    ;; Setting *default-pathname-defaults* to an absolute directory    ;; Setting *default-pathname-defaults* to an absolute directory
1006    ;; makes the behavior of MERGE-PATHNAMES a bit more intuitive.    ;; makes the behavior of MERGE-PATHNAMES a bit more intuitive.
1007    (setf *default-pathname-defaults* (pathname (ext:default-directory)))    (setf *default-pathname-defaults* (pathname (ext:default-directory)))
1008    (namestring (ext:default-directory)))    (namestring (ext:default-directory)))
1010    ;;; source-path-{stream,file,string,etc}-position moved into
1011  ;;;; Source-paths  ;;; swank-source-path-parser
 ;;; CMUCL uses a data structure called "source-path" to locate  
 ;;; subforms.  The compiler assigns a source-path to each form in a  
 ;;; compilation unit.  Compiler notes usually contain the source-path  
 ;;; of the error location.  
 ;;; Compiled code objects don't contain source paths, only the  
 ;;; "toplevel-form-number" and the (sub-) "form-number".  To get from  
 ;;; the form-number to the source-path we need the entire toplevel-form  
 ;;; (i.e. we have to read the source code).  CMUCL has already some  
 ;;; utilities to do this translation, but we use some extended  
 ;;; versions, because we need more exact position info.  Apparently  
 ;;; Hemlock is happy with the position of the toplevel-form; we also  
 ;;; need the position of subforms.  
 ;;; We use a special readtable to get the positions of the subforms.  
 ;;; The readtable stores the start and end position for each subform in  
 ;;; hashtable for later retrieval.  
 (defun make-source-recorder (fn source-map)  
   "Return a macro character function that does the same as FN, but  
 additionally stores the result together with the stream positions  
 before and after of calling FN in the hashtable SOURCE-MAP."  
   (lambda (stream char)  
     (let ((start (file-position stream))  
           (values (multiple-value-list (funcall fn stream char)))  
           (end (file-position stream)))  
       #+(or) (format t "~&[~D ~{~A~^, ~} ~D]~%" start values end)  
       (unless (null values)  
         (push (cons start end) (gethash (car values) source-map)))  
       (values-list values))))  
 (defun make-source-recording-readtable (readtable source-map)  
   "Return a source position recording copy of READTABLE.  
 The source locations are stored in SOURCE-MAP."  
   (let* ((tab (copy-readtable readtable))  
          (*readtable* tab))  
     (dotimes (code char-code-limit)  
       (let ((char (code-char code)))  
         (multiple-value-bind (fn term) (get-macro-character char tab)  
           (when fn  
             (set-macro-character char (make-source-recorder fn source-map)  
                                  term tab)))))  
 (defun make-source-map ()  
   (make-hash-table :test #'eq))  
 (defvar *source-map* (make-source-map)  
   "The hashtable table used for source position recording.")  
 (defvar *recording-readtable-cache* '()  
   "An alist of (READTABLE . RECORDING-READTABLE) pairs.")  
 (defun lookup-recording-readtable (readtable)  
   "Find a cached or create a new recording readtable for READTABLE."  
   (or (cdr (assoc readtable *recording-readtable-cache*))  
       (let ((table (make-source-recording-readtable readtable *source-map*)))  
         (push (cons readtable table) *recording-readtable-cache*)  
 (defun read-and-record-source-map (stream)  
   "Read the next object from STREAM.  
 Return the object together with a hashtable that maps  
 subexpressions of the object to stream positions."  
   (let ((*readtable* (lookup-recording-readtable *readtable*)))  
     (clrhash *source-map*)  
     (values (read stream) *source-map*)))  
 (defun source-path-stream-position (path stream)  
   "Search the source-path PATH in STREAM and return its position."  
   (destructuring-bind (tlf-number . path) path  
     (let ((*read-suppress* t))  
       (dotimes (i tlf-number) (read stream))  
       (multiple-value-bind (form source-map)  
           (read-and-record-source-map stream)  
         (source-path-source-position (cons 0 path) form source-map)))))  
 (defun source-path-string-position (path string)  
   (with-input-from-string (s string)  
     (source-path-stream-position path s)))  
 (defun source-path-file-position (path filename)  
   (with-open-file (file filename)  
     (source-path-stream-position path file)))  
 (defun source-path-source-position (path form source-map)  
   "Return the start position of PATH form FORM and SOURCE-MAP.  All  
 subforms along the path are considered and the start and end position  
 of deepest (i.e. smallest) possible form is returned."  
   ;; compute all subforms along path  
   (let ((forms (loop for n in path  
                      for f = form then (nth n f)  
                      collect f)))  
     ;; select the first subform present in source-map  
     (loop for form in (reverse forms)  
           for positions = (gethash form source-map)  
           until (and positions (null (cdr positions)))  
           finally (destructuring-bind ((start . end)) positions  
                     (return (values (1- start) end))))))  
1013  (defun code-location-stream-position (code-location stream)  (defun code-location-stream-position (code-location stream)
1014    "Return the byte offset of CODE-LOCATION in STREAM.  Extract the    "Return the byte offset of CODE-LOCATION in STREAM.  Extract the
# Line 936  toplevel-form-number and form-number fro Line 1016  toplevel-form-number and form-number fro
1016  to find the position of the corresponding form."  to find the position of the corresponding form."
1017    (let* ((location (debug::maybe-block-start-location code-location))    (let* ((location (debug::maybe-block-start-location code-location))
1018           (tlf-offset (di:code-location-top-level-form-offset location))           (tlf-offset (di:code-location-top-level-form-offset location))
1019           (form-number (di:code-location-form-number location))           (form-number (di:code-location-form-number location)))
1020           (*read-suppress* t))      (form-number-stream-position tlf-offset form-number stream)))
1021      (dotimes (i tlf-offset) (read stream))  
1022    (defun form-number-stream-position (tlf-number form-number stream)
1023      (let ((*read-suppress* t))
1024        (dotimes (i tlf-number) (read stream))
1025      (multiple-value-bind (tlf position-map) (read-and-record-source-map stream)      (multiple-value-bind (tlf position-map) (read-and-record-source-map stream)
1026        (let* ((path-table (di:form-number-translations tlf 0))        (let* ((path-table (di:form-number-translations tlf 0))
1027               (source-path               (source-path
# Line 955  to find the position of the correspondin Line 1038  to find the position of the correspondin
1038    (with-open-file (s filename :direction :input)    (with-open-file (s filename :direction :input)
1039      (code-location-stream-position code-location s)))      (code-location-stream-position code-location s)))
1041    (defun info-from-emacs-buffer-p (info)
1042      (and info
1043           (consp info)
1044           (eq :emacs-buffer (car info))))
1046  (defun debug-source-info-from-emacs-buffer-p (debug-source)  (defun debug-source-info-from-emacs-buffer-p (debug-source)
1047    (let ((info (c::debug-source-info debug-source)))    (info-from-emacs-buffer-p (c::debug-source-info debug-source)))
     (and info  
          (consp info)  
          (eq :emacs-buffer (car info)))))  
1049  (defun source-location-from-code-location (code-location)  (defun source-location-from-code-location (code-location)
1050    "Return the source location for CODE-LOCATION."    "Return the source location for CODE-LOCATION."
# Line 995  to find the position of the correspondin Line 1080  to find the position of the correspondin
1080    (safe-definition-finding    (safe-definition-finding
1081     (source-location-from-code-location code-location)))     (source-location-from-code-location code-location)))
 (defslimefun getpid ()  
1084  ;;;; Debugging  ;;;; Debugging
1086  (defvar *sldb-stack-top*)  (defvar *sldb-stack-top*)
 (defvar *sldb-restarts*)  
1088  (defmethod call-with-debugging-environment (debugger-loop-fn)  (defimplementation call-with-debugging-environment (debugger-loop-fn)
1089    (unix:unix-sigsetmask 0)    (unix:unix-sigsetmask 0)
1090    (let* ((*sldb-stack-top* (or debug:*stack-top-hint* (di:top-frame)))    (let* ((*sldb-stack-top* (or debug:*stack-top-hint* (di:top-frame)))
1091           (*sldb-restarts* (compute-restarts *swank-debugger-condition*))           (debug:*stack-top-hint* nil))
          (debug:*stack-top-hint* nil)  
          (*debugger-hook* nil)  
          (*readtable* (or debug:*debug-readtable* *readtable*))  
          (*print-level* debug:*debug-print-level*)  
          (*print-length* debug:*debug-print-length*)  
          (*print-readably* nil))  
1092      (handler-bind ((di:debug-condition      (handler-bind ((di:debug-condition
1093                      (lambda (condition)                      (lambda (condition)
1094                        (signal (make-condition                        (signal (make-condition
# Line 1021  to find the position of the correspondin Line 1096  to find the position of the correspondin
1096                                 :original-condition condition)))))                                 :original-condition condition)))))
1097        (funcall debugger-loop-fn))))        (funcall debugger-loop-fn))))
 (defun format-restarts-for-emacs ()  
   "Return a list of restarts for *swank-debugger-condition* in a  
 format suitable for Emacs."  
   (loop for restart in *sldb-restarts*  
         collect (list (princ-to-string (restart-name restart))  
                       (princ-to-string restart))))  
 (defun format-condition-for-emacs ()  
   (format nil "~A~%   [Condition of type ~S]"  
           (debug::safe-condition-message *swank-debugger-condition*)  
           (type-of *swank-debugger-condition*)))  
1099  (defun nth-frame (index)  (defun nth-frame (index)
1100    (do ((frame *sldb-stack-top* (di:frame-down frame))    (do ((frame *sldb-stack-top* (di:frame-down frame))
1101         (i index (1- i)))         (i index (1- i)))
1102        ((zerop i) frame)))        ((zerop i) frame)))
1104  (defun nth-restart (index)  (defimplementation compute-backtrace (start end)
   (nth index *sldb-restarts*))  
 (defun format-frame-for-emacs (frame)  
   (list (di:frame-number frame)  
         (with-output-to-string (*standard-output*)  
           (let ((*print-pretty* *sldb-pprint-frames*))  
             (debug::print-frame-call frame :verbosity 1 :number t)))))  
 (defun compute-backtrace (start end)  
   "Return a list of frames starting with frame number START and  
 continuing to frame number END or, if END is nil, the last frame on the  
1105    (let ((end (or end most-positive-fixnum)))    (let ((end (or end most-positive-fixnum)))
1106      (loop for f = (nth-frame start) then (di:frame-down f)      (loop for f = (nth-frame start) then (di:frame-down f)
1107            for i from start below end            for i from start below end
1108            while f            while f
1109            collect f)))            collect f)))
1111  (defmethod backtrace (start end)  (defimplementation print-frame (frame stream)
1112    (mapcar #'format-frame-for-emacs (compute-backtrace start end)))    (let ((*standard-output* stream))
1113        (debug::print-frame-call frame :verbosity 1 :number nil)))
 (defmethod debugger-info-for-emacs (start end)  
   (list (format-condition-for-emacs)  
         (backtrace start end)))  
1115  (defmethod frame-source-location-for-emacs (index)  (defimplementation frame-source-location-for-emacs (index)
1116    (code-location-source-location (di:frame-code-location (nth-frame index))))    (code-location-source-location (di:frame-code-location (nth-frame index))))
1118  (defmethod eval-in-frame (form index)  (defimplementation eval-in-frame (form index)
1119    (di:eval-in-frame (nth-frame index) form))    (di:eval-in-frame (nth-frame index) form))
1121  (defslimefun pprint-eval-string-in-frame (string index)  (defimplementation frame-locals (index)
     (di:eval-in-frame (nth-frame index) (from-string string)))))  
 (defslimefun inspect-in-frame (string index)  
   (inspect-object (di:eval-in-frame (nth-frame index) (from-string string))))  
 (defmethod frame-locals (index)  
1122    (let* ((frame (nth-frame index))    (let* ((frame (nth-frame index))
1123           (location (di:frame-code-location frame))           (location (di:frame-code-location frame))
1124           (debug-function (di:frame-debug-function frame))           (debug-function (di:frame-debug-function frame))
1125           (debug-variables (di::debug-function-debug-variables debug-function)))           (debug-variables (di::debug-function-debug-variables debug-function)))
1126      (loop for v across debug-variables      (loop for v across debug-variables collect
1127            collect (list            (list :name (di:debug-variable-symbol v)
1128                     :symbol (di:debug-variable-symbol v)                  :id (di:debug-variable-id v)
1129                     :id (di:debug-variable-id v)                  :value (ecase (di:debug-variable-validity v location)
1130                     :value-string                           (:valid
1131                     (if (eq (di:debug-variable-validity v location)                            (di:debug-variable-value v frame))
1132                             :valid)                           ((:invalid :unknown)
1133                         (to-string (di:debug-variable-value v frame))                            ':not-available))))))
1134                         "<not-available>")))))  
1135    (defimplementation frame-catch-tags (index)
1136  (defmethod frame-catch-tags (index)    (mapcar #'car (di:frame-catches (nth-frame index))))
1137    (loop for (tag . code-location) in (di:frame-catches (nth-frame index))  
1138          collect `(,tag . ,(code-location-source-location code-location))))  (defun set-step-breakpoints (frame)
1139      (when (di:debug-block-elsewhere-p (di:code-location-debug-block
1140                                         (di:frame-code-location frame)))
1141        (error "Cannot step, in elsewhere code~%"))
1142      (let* ((code-location (di:frame-code-location frame))
1143             (debug::*bad-code-location-types*
1144              (remove :call-site debug::*bad-code-location-types*))
1145             (next (debug::next-code-locations code-location)))
1146        (cond (next
1147               (let ((steppoints '()))
1148                 (flet ((hook (frame breakpoint)
1149                          (let ((debug:*stack-top-hint* frame))
1150                            (mapc #'di:delete-breakpoint steppoints)
1151                            (let ((cl (di::breakpoint-what breakpoint)))
1152                              (break "Breakpoint: ~S ~S"
1153                                     (di:code-location-kind cl)
1154                                     (di::compiled-code-location-pc cl))))))
1155                   (dolist (code-location next)
1156                     (let ((bp (di:make-breakpoint #'hook code-location
1157                                                   :kind :code-location)))
1158                       (di:activate-breakpoint bp)
1159                       (push bp steppoints))))))
1160             (t
1161              (flet ((hook (frame breakpoint values cookie)
1162                       (declare (ignore cookie))
1163                       (di:delete-breakpoint breakpoint)
1164                       (let ((debug:*stack-top-hint* frame))
1165                         (break "Function-end: ~A ~A" breakpoint values))))
1166                (let* ((debug-function (di:frame-debug-function frame))
1167                       (bp (di:make-breakpoint #'hook debug-function
1168                                               :kind :function-end)))
1169                  (di:activate-breakpoint bp)))))))
1171    ;; (defslimefun sldb-step (frame)
1172    ;;   (cond ((find-restart 'continue *swank-debugger-condition*)
1173    ;;          (set-step-breakpoints (nth-frame frame))
1174    ;;          (continue *swank-debugger-condition*))
1175    ;;         (t
1176    ;;          (error "Cannot continue in from condition: ~A"
1177    ;;                 *swank-debugger-condition*))))
1179    (defun frame-cfp (frame)
1180      "Return the Control-Stack-Frame-Pointer for FRAME."
1181      (etypecase frame
1182        (di::compiled-frame (di::frame-pointer frame))
1183        ((or di::interpreted-frame null) -1)))
1185    (defun frame-ip (frame)
1186      "Return the (absolute) instruction pointer and the relative pc of FRAME."
1187      (if (not frame)
1188          -1
1189          (let ((debug-fun (di::frame-debug-function frame)))
1190            (etypecase debug-fun
1191              (di::compiled-debug-function
1192               (let* ((code-loc (di:frame-code-location frame))
1193                      (component (di::compiled-debug-function-component debug-fun))
1194                      (pc (di::compiled-code-location-pc code-loc))
1195                      (ip (sys:without-gcing
1196                           (sys:sap-int
1197                            (sys:sap+ (kernel:code-instructions component) pc)))))
1198                 (values ip pc)))
1199              ((or di::bogus-debug-function di::interpreted-debug-function)
1200               -1)))))
1202    (defun frame-registers (frame)
1203      "Return the lisp registers CSP, CFP, IP, OCFP, LRA for FRAME-NUMBER."
1204      (let* ((cfp (frame-cfp frame))
1205             (csp (frame-cfp (di::frame-up frame)))
1206             (ip (frame-ip frame))
1207             (ocfp (frame-cfp (di::frame-down frame)))
1208             (lra (frame-ip (di::frame-down frame))))
1209        (values csp cfp ip ocfp lra)))
1211    (defun print-frame-registers (frame-number)
1212      (let ((frame (di::frame-real-frame (nth-frame frame-number))))
1213        (flet ((fixnum (p) (etypecase p
1214                             (integer p)
1215                             (sys:system-area-pointer (sys:sap-int p)))))
1216          (apply #'format t "~
1217    CSP  =  ~X
1218    CFP  =  ~X
1219    IP   =  ~X
1220    OCFP =  ~X
1221    LRA  =  ~X~%" (mapcar #'fixnum
1222                          (multiple-value-list (frame-registers frame)))))))
1225    (defimplementation disassemble-frame (frame-number)
1226      "Return a string with the disassembly of frames code."
1227      (print-frame-registers frame-number)
1228      (terpri)
1229      (let* ((frame (di::frame-real-frame (nth-frame frame-number)))
1230             (debug-fun (di::frame-debug-function frame)))
1231        (etypecase debug-fun
1232          (di::compiled-debug-function
1233           (let* ((component (di::compiled-debug-function-component debug-fun))
1234                  (fun (di:debug-function-function debug-fun)))
1235             (if fun
1236                 (disassemble fun)
1237                 (disassem:disassemble-code-component component))))
1238          (di::bogus-debug-function
1239           (format t "~%[Disassembling bogus frames not implemented]")))))
1241    #+(or)
1242    (defun print-binding-stack ()
1243      (flet ((bsp- (p) (sys:sap+ p (- (* vm:binding-size vm:word-bytes))))
1244             (frob (p offset) (kernel:make-lisp-obj (sys:sap-ref-32 p offset))))
1245        (do ((bsp (bsp- (kernel:binding-stack-pointer-sap)) (bsp- bsp))
1246             (start (sys:int-sap (lisp::binding-stack-start))))
1247            ((sys:sap= bsp start))
1248          (format t "~X:  ~S = ~S~%"
1249                  (sys:sap-int bsp)
1250                  (frob bsp (* vm:binding-symbol-slot vm:word-bytes))
1251                  (frob bsp (* vm:binding-value-slot vm:word-bytes))))))
1253    ;; (print-binding-stack)
1255    #+(or)
1256    (defun print-catch-blocks ()
1257      (do ((b (di::descriptor-sap lisp::*current-catch-block*)
1258              (sys:sap-ref-sap b (* vm:catch-block-previous-catch-slot
1259                                    vm:word-bytes))))
1260          (nil)
1261        (let ((int (sys:sap-int b)))
1262          (when (zerop int) (return))
1263          (flet ((ref (offset) (sys:sap-ref-32 b (* offset vm:word-bytes))))
1264            (let ((uwp (ref vm:catch-block-current-uwp-slot))
1265                  (cfp (ref vm:catch-block-current-cont-slot))
1266                  (tag (ref vm:catch-block-tag-slot))
1267                  )
1268          (format t "~X:  uwp = ~8X  cfp = ~8X  tag = ~X~%"
1269                  int uwp cfp (kernel:make-lisp-obj tag)))))))
1271    ;; (print-catch-blocks)
1273    #+(or)
1274    (defun print-unwind-blocks ()
1275      (do ((b (di::descriptor-sap lisp::*current-unwind-protect-block*)
1276              (sys:sap-ref-sap b (* vm:unwind-block-current-uwp-slot
1277                                    vm:word-bytes))))
1278          (nil)
1279        (let ((int (sys:sap-int b)))
1280          (when (zerop int) (return))
1281          (flet ((ref (offset) (sys:sap-ref-32 b (* offset vm:word-bytes))))
1282            (let ((cfp (ref vm:unwind-block-current-cont-slot)))
1283              (format t "~X:  cfp = ~X~%" int cfp))))))
1285  (defslimefun invoke-nth-restart (index)  ;; (print-unwind-blocks)
   (invoke-restart-interactively (nth-restart index)))  
 (defslimefun sldb-abort ()  
   (invoke-restart (find 'abort *sldb-restarts* :key #'restart-name)))  
1288  ;;;; Inspecting  ;;;; Inspecting
 (defvar *inspectee*)  
 (defvar *inspectee-parts*)  
 (defvar *inspector-stack* '())  
 (defvar *inspector-history* (make-array 10 :adjustable t :fill-pointer 0))  
 (defvar *inspect-length* 30)  
 (defun reset-inspector ()  
   (setq *inspectee* nil)  
   (setq *inspectee-parts* nil)  
   (setq *inspector-stack* nil)  
   (setf (fill-pointer *inspector-history*) 0))  
 (defslimefun init-inspector (string)  
   (inspect-object (eval (from-string string))))  
 (defun print-part-to-string (value)  
   (let ((*print-pretty* nil))  
     (let ((string (to-string value))  
           (pos (position value *inspector-history*)))  
       (if pos  
           (format nil "#~D=~A" pos string)  
 (defun inspect-object (object)  
   (push (setq *inspectee* object) *inspector-stack*)  
   (unless (find object *inspector-history*)  
     (vector-push-extend object *inspector-history*))  
   (multiple-value-bind (text parts) (inspected-parts object)  
     (setq *inspectee-parts* parts)  
       (list :text text  
             :type (to-string (type-of object))  
             :primitive-type (describe-primitive-type object)  
             :parts (loop for (label . value) in parts  
                          collect (cons label  
                                        (print-part-to-string value))))))  
1290  (defconstant +lowtag-symbols+  (defconstant +lowtag-symbols+
1291    '(vm:even-fixnum-type    '(vm:even-fixnum-type
1292      vm:function-pointer-type      vm:function-pointer-type
# Line 1168  stack." Line 1311  stack."
1311       (append (apropos-list "-TYPE" "VM" t)       (append (apropos-list "-TYPE" "VM" t)
1312               (apropos-list "-TYPE" "BIGNUM" t)))))               (apropos-list "-TYPE" "BIGNUM" t)))))
1314  (defun describe-primitive-type (object)  (defimplementation describe-primitive-type (object)
1315    (with-output-to-string (*standard-output*)    (with-output-to-string (*standard-output*)
1316      (let* ((lowtag (kernel:get-lowtag object))      (let* ((lowtag (kernel:get-lowtag object))
1317             (lowtag-symbol (find lowtag +lowtag-symbols+ :key #'symbol-value)))             (lowtag-symbol (find lowtag +lowtag-symbols+ :key #'symbol-value)))
1318        (format t "[lowtag: ~A" lowtag-symbol)        (format t "lowtag: ~A" lowtag-symbol)
1319        (cond ((member lowtag (list vm:other-pointer-type        (when (member lowtag (list vm:other-pointer-type
1320                                    vm:function-pointer-type                                   vm:function-pointer-type
1321                                    vm:other-immediate-0-type                                   vm:other-immediate-0-type
1322                                    vm:other-immediate-1-type                                   vm:other-immediate-1-type
1323                                    ))                                   ))
1324               (let* ((type (kernel:get-type object))          (let* ((type (kernel:get-type object))
1325                      (type-symbol (find type +header-type-symbols+                 (type-symbol (find type +header-type-symbols+
1326                                         :key #'symbol-value)))                                    :key #'symbol-value)))
1327                 (format t ", type: ~A]" type-symbol)))            (format t ", type: ~A" type-symbol))))))
             (t (format t "]"))))))  
 (defun nth-part (index)  
   (cdr (nth index *inspectee-parts*)))  
 (defslimefun inspect-nth-part (index)  
   (inspect-object (nth-part index)))  
 (defslimefun inspector-pop ()  
   "Drop the inspector stack and inspect the second element.  Return  
 nil if there's no second element."  
   (cond ((cdr *inspector-stack*)  
          (pop *inspector-stack*)  
          (inspect-object (pop *inspector-stack*)))  
         (t nil)))  
 (defslimefun inspector-next ()  
   "Inspect the next element in the *inspector-history*."  
   (let ((position (position *inspectee* *inspector-history*)))  
     (cond ((= (1+ position) (length *inspector-history*))  
           (t (inspect-object (aref *inspector-history* (1+ position)))))))  
 (defslimefun quit-inspector ()  
 (defslimefun describe-inspectee ()  
   "Describe the currently inspected object."  
   (print-description-to-string *inspectee*))  
 (defgeneric inspected-parts (object)  
    "Return a short description and a list of (label . value) pairs."))  
1329  (defmethod inspected-parts (o)  (defimplementation inspected-parts (o)
1330    (cond ((di::indirect-value-cell-p o)    (cond ((di::indirect-value-cell-p o)
1331           (inspected-parts-of-value-cell o))           (inspected-parts-of-value-cell o))
1332          (t          (t
# Line 1235  nil if there's no second element." Line 1344  nil if there's no second element."
1344    (values (format nil "~A~% is a value cell." o)    (values (format nil "~A~% is a value cell." o)
1345            (list (cons "Value" (c:value-cell-ref o)))))            (list (cons "Value" (c:value-cell-ref o)))))
 ;; borrowed from sbcl  
 (defmethod inspected-parts ((object cons))  
   (if (consp (cdr object))  
       (inspected-parts-of-nontrivial-list object)  
       (inspected-parts-of-simple-cons object)))  
 (defun inspected-parts-of-simple-cons (object)  
   (values "The object is a CONS."  
           (list (cons (string 'car) (car object))  
                 (cons (string 'cdr) (cdr object)))))  
 (defun inspected-parts-of-nontrivial-list (object)  
   (let ((length 0)  
         (in-list object)  
         (reversed-elements nil))  
     (flet ((done (description-format)  
              (return-from inspected-parts-of-nontrivial-list  
                (values (format nil description-format length)  
                        (nreverse reversed-elements)))))  
        (cond ((null in-list)  
               (done "The object is a proper list of length ~S.~%"))  
              ((>= length *inspect-length*)  
               (push (cons  (string 'rest) in-list) reversed-elements)  
               (done "The object is a long list (more than ~S elements).~%"))  
              ((consp in-list)  
               (push (cons (format nil "~D" length) (pop in-list))  
               (incf length))  
               (push (cons (string 'rest) in-list) reversed-elements)  
               (done "The object is an improper list of length ~S.~%")))))))  
1347  (defmethod inspected-parts ((o function))  (defmethod inspected-parts ((o function))
1348    (let ((header (kernel:get-type o)))    (let ((header (kernel:get-type o)))
1349      (cond ((= header vm:function-header-type)      (cond ((= header vm:function-header-type)
# Line 1304  nil if there's no second element." Line 1380  nil if there's no second element."
1380            `(("Name" . ,(kernel:fdefn-name o))            `(("Name" . ,(kernel:fdefn-name o))
1381              ("Function" . ,(kernel:fdefn-function o)))))              ("Function" . ,(kernel:fdefn-function o)))))
1383  ;;; Local Variables:  
1384  ;;; eval: (font-lock-add-keywords 'lisp-mode '(("(\\(defslimefun\\)\\s +\\(\\(\\w\\|\\s_\\)+\\)"  (1 font-lock-keyword-face) (2 font-lock-function-name-face))))  ;;;; Profiling
1385  ;;; End:  (defimplementation profile (fname)
1386      (eval `(profile:profile ,fname)))
1388    (defimplementation unprofile (fname)
1389      (eval `(profile:unprofile ,fname)))
1391    (defimplementation unprofile-all ()
1392      (eval '(profile:unprofile))
1393      "All functions unprofiled.")
1395    (defimplementation profile-report ()
1396      (eval '(profile:report-time)))
1398    (defimplementation profile-reset ()
1399      (eval '(profile:reset-time))
1400      "Reset profiling counters.")
1402    (defimplementation profiled-functions ()
1403      profile:*timed-functions*)
1405    (defimplementation profile-package (package callers methods)
1406      (profile:profile-all :package package
1407                           :callers-p callers
1408                           :methods methods))
1411    ;;;; Multiprocessing
1413    #+mp
1414    (progn
1415      (defimplementation startup-multiprocessing ()
1416        ;; Threads magic: this never returns! But top-level becomes
1417        ;; available again.
1418        (mp::startup-idle-and-top-level-loops))
1420      (defimplementation spawn (fn &key (name "Anonymous"))
1421        (mp:make-process fn :name name))
1423      (defimplementation thread-name (thread)
1424        (mp:process-name thread))
1426      (defimplementation thread-status (thread)
1427        (mp:process-whostate thread))
1429      (defimplementation current-thread ()
1430        mp:*current-process*)
1432      (defimplementation all-threads ()
1433        (copy-list mp:*all-processes*))
1435      (defimplementation interrupt-thread (thread fn)
1436        (mp:process-interrupt thread fn))
1438      (defimplementation kill-thread (thread)
1439        (mp:destroy-process thread))
1441      (defvar *mailbox-lock* (mp:make-lock "mailbox lock"))
1443      (defstruct (mailbox (:conc-name mailbox.))
1444        (mutex (mp:make-lock "process mailbox"))
1445        (queue '() :type list))
1447      (defun mailbox (thread)
1448        "Return THREAD's mailbox."
1449        (mp:with-lock-held (*mailbox-lock*)
1450          (or (getf (mp:process-property-list thread) 'mailbox)
1451              (setf (getf (mp:process-property-list thread) 'mailbox)
1452                    (make-mailbox)))))
1454      (defimplementation send (thread message)
1455        (let* ((mbox (mailbox thread))
1456               (mutex (mailbox.mutex mbox)))
1457          (mp:with-lock-held (mutex)
1458            (setf (mailbox.queue mbox)
1459                  (nconc (mailbox.queue mbox) (list message))))))
1461      (defimplementation receive ()
1462        (let* ((mbox (mailbox mp:*current-process*))
1463               (mutex (mailbox.mutex mbox)))
1464          (mp:process-wait "receive" #'mailbox.queue mbox)
1465          (mp:with-lock-held (mutex)
1466            (pop (mailbox.queue mbox)))))
1468      )
1470    (defimplementation quit-lisp ()
1471      (ext::quit))

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