-
Notifications
You must be signed in to change notification settings - Fork 0
/
swank-clisp.lisp
855 lines (721 loc) · 31.3 KB
/
swank-clisp.lisp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
;;;; -*- indent-tabs-mode: nil -*-
;;;; SWANK support for CLISP.
;;;; Copyright (C) 2003, 2004 W. Jenkner, V. Sedach
;;;; 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.
;;; This is work in progress, but it's already usable. Many things
;;; are adapted from other swank-*.lisp, in particular from
;;; swank-allegro (I don't use allegro at all, but it's the shortest
;;; one and I found Helmut Eller's code there enlightening).
;;; This code will work better with recent versions of CLISP (say, the
;;; last release or CVS HEAD) while it may not work at all with older
;;; versions. It is reasonable to expect it to work on platforms with
;;; a "SOCKET" package, in particular on GNU/Linux or Unix-like
;;; systems, but also on Win32. This backend uses the portable xref
;;; from the CMU AI repository and metering.lisp from CLOCC [1], which
;;; are conveniently included in SLCLJ.
;;; [1] http://cvs.sourceforge.net/viewcvs.py/clocc/clocc/src/tools/metering/
(in-package :swank-backend)
(eval-when (:compile-toplevel :load-toplevel :execute)
;;(use-package "SOCKET")
(use-package "GRAY"))
;;;; if this lisp has the complete CLOS then we use it, otherwise we
;;;; build up a "fake" swank-mop and then override the methods in the
;;;; inspector.
(eval-when (:compile-toplevel :load-toplevel :execute)
(defvar *have-mop*
(and (find-package :clos)
(eql :external
(nth-value 1 (find-symbol (string ':standard-slot-definition)
:clos))))
"True in those CLISP images which have a complete MOP implementation."))
#+#.(cl:if swank-backend::*have-mop* '(cl:and) '(cl:or))
(progn
(import-swank-mop-symbols :clos '(:slot-definition-documentation))
(defun swank-mop:slot-definition-documentation (slot)
(clos::slot-definition-documentation slot)))
#-#.(cl:if swank-backend::*have-mop* '(and) '(or))
(defclass swank-mop:standard-slot-definition ()
()
(:documentation
"Dummy class created so that swank.lisp will compile and load."))
(let ((getpid (or (find-symbol "PROCESS-ID" :system)
;; old name prior to 2005-03-01, clisp <= 2.33.2
(find-symbol "PROGRAM-ID" :system)
#+win32 ; integrated into the above since 2005-02-24
(and (find-package :win32) ; optional modules/win32
(find-symbol "GetCurrentProcessId" :win32)))))
(defimplementation getpid () ; a required interface
(cond
(getpid (funcall getpid))
#+win32 ((ext:getenv "PID")) ; where does that come from?
(t -1))))
(defimplementation call-with-user-break-handler (handler function)
(handler-bind ((system::simple-interrupt-condition
(lambda (c)
(declare (ignore c))
(funcall handler)
(when (find-restart 'socket-status)
(invoke-restart (find-restart 'socket-status)))
(continue))))
(funcall function)))
(defimplementation lisp-implementation-type-name ()
"clisp")
(defimplementation set-default-directory (directory)
(setf (ext:default-directory) directory)
(namestring (setf *default-pathname-defaults* (ext:default-directory))))
(defimplementation filename-to-pathname (string)
(cond ((member :cygwin *features*)
(parse-cygwin-filename string))
(t (parse-namestring string))))
(defun parse-cygwin-filename (string)
(multiple-value-bind (match _ drive absolute)
(regexp:match "^(([a-zA-Z\\]+):)?([\\/])?" string :extended t)
(declare (ignore _))
(assert (and match (if drive absolute t)) ()
"Invalid filename syntax: ~a" string)
(let* ((sans-prefix (subseq string (regexp:match-end match)))
(path (remove "" (regexp:regexp-split "[\\/]" sans-prefix)))
(path (loop for name in path collect
(cond ((equal name "..") ':back)
(t name))))
(directoryp (or (equal string "")
(find (aref string (1- (length string))) "\\/"))))
(multiple-value-bind (file type)
(cond ((and (not directoryp) (last path))
(let* ((file (car (last path)))
(pos (position #\. file :from-end t)))
(cond ((and pos (> pos 0))
(values (subseq file 0 pos)
(subseq file (1+ pos))))
(t file)))))
(make-pathname :host nil
:device nil
:directory (cons
(if absolute :absolute :relative)
(let ((path (if directoryp
path
(butlast path))))
(if drive
(cons
(regexp:match-string string drive)
path)
path)))
:name file
:type type)))))
;;;; TCP Server
(defimplementation create-socket (host port)
(declare (ignore host))
(socket:socket-server port))
(defimplementation local-port (socket)
(socket:socket-server-port socket))
(defimplementation close-socket (socket)
(socket:socket-server-close socket))
(defimplementation accept-connection (socket
&key external-format buffering timeout)
(declare (ignore buffering timeout))
(socket:socket-accept socket
:buffered nil ;; XXX should be t
:element-type 'character
:external-format external-format))
#-win32
(defimplementation wait-for-input (streams &optional timeout)
(assert (member timeout '(nil t)))
(let ((streams (mapcar (lambda (s) (list* s :input nil)) streams)))
(loop
(cond ((check-slclj-interrupts) (return :interrupt))
(timeout
(socket:socket-status streams 0 0)
(return (loop for (s _ . x) in streams
if x collect s)))
(t
(with-simple-restart (socket-status "Return from socket-status.")
(socket:socket-status streams 0 500000))
(let ((ready (loop for (s _ . x) in streams
if x collect s)))
(when ready (return ready))))))))
;;;; Coding systems
(defvar *external-format-to-coding-system*
'(((:charset "iso-8859-1" :line-terminator :unix)
"latin-1-unix" "iso-latin-1-unix" "iso-8859-1-unix")
((:charset "iso-8859-1":latin-1)
"latin-1" "iso-latin-1" "iso-8859-1")
((:charset "utf-8") "utf-8")
((:charset "utf-8" :line-terminator :unix) "utf-8-unix")
((:charset "euc-jp") "euc-jp")
((:charset "euc-jp" :line-terminator :unix) "euc-jp-unix")
((:charset "us-ascii") "us-ascii")
((:charset "us-ascii" :line-terminator :unix) "us-ascii-unix")))
(defimplementation find-external-format (coding-system)
(let ((args (car (rassoc-if (lambda (x)
(member coding-system x :test #'equal))
*external-format-to-coding-system*))))
(and args (apply #'ext:make-encoding args))))
;;;; Swank functions
(defimplementation arglist (fname)
(block nil
(or (ignore-errors
(let ((exp (function-lambda-expression fname)))
(and exp (return (second exp)))))
(ignore-errors
(return (ext:arglist fname)))
:not-available)))
(defimplementation macroexpand-all (form)
(ext:expand-form form))
(defimplementation describe-symbol-for-emacs (symbol)
"Return a plist describing SYMBOL.
Return NIL if the symbol is unbound."
(let ((result ()))
(flet ((doc (kind)
(or (documentation symbol kind) :not-documented))
(maybe-push (property value)
(when value
(setf result (list* property value result)))))
(maybe-push :variable (when (boundp symbol) (doc 'variable)))
(when (fboundp symbol)
(maybe-push
;; Report WHEN etc. as macros, even though they may be
;; implemented as special operators.
(if (macro-function symbol) :macro
(typecase (fdefinition symbol)
(generic-function :generic-function)
(function :function)
;; (type-of 'progn) -> ext:special-operator
(t :special-operator)))
(doc 'function)))
(when (or (get symbol 'system::setf-function) ; e.g. #'(setf elt)
(get symbol 'system::setf-expander)); defsetf
(maybe-push :setf (doc 'setf)))
(when (or (get symbol 'system::type-symbol); cf. clisp/src/describe.lisp
(get symbol 'system::defstruct-description)
(get symbol 'system::deftype-expander))
(maybe-push :type (doc 'type))) ; even for 'structure
(when (find-class symbol nil)
(maybe-push :class (doc 'type)))
;; Let this code work compiled in images without FFI
(let ((types (load-time-value
(and (find-package "FFI")
(symbol-value
(find-symbol "*C-TYPE-TABLE*" "FFI"))))))
;; Use ffi::*c-type-table* so as not to suffer the overhead of
;; (ignore-errors (ffi:parse-c-type symbol)) for 99.9% of symbols
;; which are not FFI type names.
(when (and types (nth-value 1 (gethash symbol types)))
;; Maybe use (case (head (ffi:deparse-c-type)))
;; to distinguish struct and union types?
(maybe-push :alien-type :not-documented)))
result)))
(defimplementation describe-definition (symbol namespace)
(ecase namespace
(:variable (describe symbol))
(:macro (describe (macro-function symbol)))
(:function (describe (symbol-function symbol)))
(:class (describe (find-class symbol)))))
(defun fspec-pathname (spec)
(let ((path spec)
type
lines)
(when (consp path)
(psetq type (car path)
path (cadr path)
lines (cddr path)))
(when (and path
(member (pathname-type path)
custom:*compiled-file-types* :test #'equal))
(setq path
(loop for suffix in custom:*source-file-types*
thereis (probe-file (make-pathname :defaults path
:type suffix)))))
(values path type lines)))
(defun fspec-location (name fspec)
(multiple-value-bind (file type lines)
(fspec-pathname fspec)
(list (if type (list name type) name)
(cond (file
(multiple-value-bind (truename c) (ignore-errors (truename file))
(cond (truename
(make-location (list :file (namestring truename))
(if (consp lines)
(list* :line lines)
(list :function-name (string name)))
(when (consp type)
(list :snippet (format nil "~A" type)))))
(t (list :error (princ-to-string c))))))
(t (list :error (format nil "No source information available for: ~S"
fspec)))))))
(defimplementation find-definitions (name)
(mapcar #'(lambda (e) (fspec-location name e)) (documentation name 'sys::file)))
(defun trim-whitespace (string)
(string-trim #(#\newline #\space #\tab) string))
(defvar *sldb-backtrace*)
(eval-when (:compile-toplevel :load-toplevel :execute)
(when (string< "2.44" (lisp-implementation-version))
(pushnew :clisp-2.44+ *features*)))
(defun sldb-backtrace ()
"Return a list ((ADDRESS . DESCRIPTION) ...) of frames."
(do ((frames '())
(last nil frame)
(frame (sys::the-frame)
#+clisp-2.44+ (sys::frame-up 1 frame 1)
#-clisp-2.44+ (sys::frame-up-1 frame 1))) ; 1 = "all frames"
((eq frame last) (nreverse frames))
(unless (boring-frame-p frame)
(push frame frames))))
(defimplementation call-with-debugging-environment (debugger-loop-fn)
(let* (;;(sys::*break-count* (1+ sys::*break-count*))
;;(sys::*driver* debugger-loop-fn)
;;(sys::*fasoutput-stream* nil)
(*sldb-backtrace*
(nthcdr 3 (member (sys::the-frame) (sldb-backtrace)))))
(funcall debugger-loop-fn)))
(defun nth-frame (index)
(nth index *sldb-backtrace*))
(defun boring-frame-p (frame)
(member (frame-type frame) '(stack-value bind-var bind-env)))
(defun frame-to-string (frame)
(with-output-to-string (s)
(sys::describe-frame s frame)))
;; FIXME: they changed the layout in 2.44 so the frame-to-string &
;; string-matching silliness no longer works.
(defun frame-type (frame)
;; FIXME: should bind *print-length* etc. to small values.
(frame-string-type (frame-to-string frame)))
(defvar *frame-prefixes*
'(("frame binding variables" bind-var)
("<1> #<compiled-function" compiled-fun)
("<1> #<system-function" sys-fun)
("<1> #<special-operator" special-op)
("EVAL frame" eval)
("APPLY frame" apply)
("compiled tagbody frame" compiled-tagbody)
("compiled block frame" compiled-block)
("block frame" block)
("nested block frame" block)
("tagbody frame" tagbody)
("nested tagbody frame" tagbody)
("catch frame" catch)
("handler frame" handler)
("unwind-protect frame" unwind-protect)
("driver frame" driver)
("frame binding environments" bind-env)
("CALLBACK frame" callback)
("- " stack-value)
("<1> " fun)
("<2> " 2nd-frame)))
(defun frame-string-type (string)
(cadr (assoc-if (lambda (pattern) (is-prefix-p pattern string))
*frame-prefixes*)))
(defimplementation compute-backtrace (start end)
(let* ((bt *sldb-backtrace*)
(len (length bt)))
(loop for f in (subseq bt start (min (or end len) len))
collect f)))
(defimplementation print-frame (frame stream)
(let* ((str (frame-to-string frame)))
(write-string (extract-frame-line str)
stream)))
(defun extract-frame-line (frame-string)
(let ((s frame-string))
(trim-whitespace
(case (frame-string-type s)
((eval special-op)
(string-match "EVAL frame .*for form \\(.*\\)" s 1))
(apply
(string-match "APPLY frame for call \\(.*\\)" s 1))
((compiled-fun sys-fun fun)
(extract-function-name s))
(t s)))))
(defun extract-function-name (string)
(let ((1st (car (split-frame-string string))))
(or (string-match (format nil "^<1>[ ~%]*#<[-A-Za-z]* \\(.*\\)>")
1st
1)
(string-match (format nil "^<1>[ ~%]*\\(.*\\)") 1st 1)
1st)))
(defun split-frame-string (string)
(let ((rx (format nil "~%\\(~{~A~^\\|~}\\)"
(mapcar #'car *frame-prefixes*))))
(loop for pos = 0 then (1+ (regexp:match-start match))
for match = (regexp:match rx string :start pos)
if match collect (subseq string pos (regexp:match-start match))
else collect (subseq string pos)
while match)))
(defun string-match (pattern string n)
(let* ((match (nth-value n (regexp:match pattern string))))
(if match (regexp:match-string string match))))
(defimplementation format-sldb-condition (condition)
(trim-whitespace (princ-to-string condition)))
(defimplementation eval-in-frame (form frame-number)
(sys::eval-at (nth-frame frame-number) form))
(defimplementation frame-locals (frame-number)
(let ((frame (nth-frame frame-number)))
(loop for i below (%frame-count-vars frame)
collect (list :name (%frame-var-name frame i)
:value (%frame-var-value frame i)
:id 0))))
(defimplementation frame-var-value (frame var)
(%frame-var-value (nth-frame frame) var))
;;; Interpreter-Variablen-Environment has the shape
;;; NIL or #(v1 val1 ... vn valn NEXT-ENV).
(defun %frame-count-vars (frame)
(cond ((sys::eval-frame-p frame)
(do ((venv (frame-venv frame) (next-venv venv))
(count 0 (+ count (/ (1- (length venv)) 2))))
((not venv) count)))
((member (frame-type frame) '(compiled-fun sys-fun fun special-op))
(length (%parse-stack-values frame)))
(t 0)))
(defun %frame-var-name (frame i)
(cond ((sys::eval-frame-p frame)
(nth-value 0 (venv-ref (frame-venv frame) i)))
(t (format nil "~D" i))))
(defun %frame-var-value (frame i)
(cond ((sys::eval-frame-p frame)
(let ((name (venv-ref (frame-venv frame) i)))
(multiple-value-bind (v c) (ignore-errors (sys::eval-at frame name))
(if c
(format-sldb-condition c)
v))))
((member (frame-type frame) '(compiled-fun sys-fun fun special-op))
(let ((str (nth i (%parse-stack-values frame))))
(trim-whitespace (subseq str 2))))
(t (break "Not implemented"))))
(defun frame-venv (frame)
(let ((env (sys::eval-at frame '(sys::the-environment))))
(svref env 0)))
(defun next-venv (venv) (svref venv (1- (length venv))))
(defun venv-ref (env i)
"Reference the Ith binding in ENV.
Return two values: NAME and VALUE"
(let ((idx (* i 2)))
(if (< idx (1- (length env)))
(values (svref env idx) (svref env (1+ idx)))
(venv-ref (next-venv env) (- i (/ (1- (length env)) 2))))))
(defun %parse-stack-values (frame)
(labels ((next (fp)
#+clisp-2.44+ (sys::frame-down 1 fp 1)
#-clisp-2.44+ (sys::frame-down-1 fp 1))
(parse (fp accu)
(let ((str (frame-to-string fp)))
(cond ((is-prefix-p "- " str)
(parse (next fp) (cons str accu)))
((is-prefix-p "<1> " str)
;;(when (eq (frame-type frame) 'compiled-fun)
;; (pop accu))
(dolist (str (cdr (split-frame-string str)))
(when (is-prefix-p "- " str)
(push str accu)))
(nreverse accu))
(t (parse (next fp) accu))))))
(parse (next frame) '())))
(setq *features* (remove :clisp-2.44+ *features*))
(defun is-prefix-p (pattern string)
(not (mismatch pattern string :end2 (min (length pattern)
(length string)))))
(defimplementation return-from-frame (index form)
(sys::return-from-eval-frame (nth-frame index) form))
(defimplementation restart-frame (index)
(sys::redo-eval-frame (nth-frame index)))
(defimplementation frame-source-location (index)
`(:error
,(format nil "frame-source-location not implemented. (frame: ~A)"
(nth-frame index))))
;;;; Profiling
(defimplementation profile (fname)
(eval `(mon:monitor ,fname))) ;monitor is a macro
(defimplementation profiled-functions ()
mon:*monitored-functions*)
(defimplementation unprofile (fname)
(eval `(mon:unmonitor ,fname))) ;unmonitor is a macro
(defimplementation unprofile-all ()
(mon:unmonitor))
(defimplementation profile-report ()
(mon:report-monitoring))
(defimplementation profile-reset ()
(mon:reset-all-monitoring))
(defimplementation profile-package (package callers-p methods)
(declare (ignore callers-p methods))
(mon:monitor-all package))
;;;; Handle compiler conditions (find out location of error etc.)
(defmacro compile-file-frobbing-notes ((&rest args) &body body)
"Pass ARGS to COMPILE-FILE, send the compiler notes to
*STANDARD-INPUT* and frob them in BODY."
`(let ((*error-output* (make-string-output-stream))
(*compile-verbose* t))
(multiple-value-prog1
(compile-file ,@args)
(handler-case
(with-input-from-string
(*standard-input* (get-output-stream-string *error-output*))
,@body)
(sys::simple-end-of-file () nil)))))
(defvar *orig-c-warn* (symbol-function 'system::c-warn))
(defvar *orig-c-style-warn* (symbol-function 'system::c-style-warn))
(defvar *orig-c-error* (symbol-function 'system::c-error))
(defvar *orig-c-report-problems* (symbol-function 'system::c-report-problems))
(defmacro dynamic-flet (names-functions &body body)
"(dynamic-flet ((NAME FUNCTION) ...) BODY ...)
Execute BODY with NAME's function slot set to FUNCTION."
`(ext:letf* ,(loop for (name function) in names-functions
collect `((symbol-function ',name) ,function))
,@body))
(defvar *buffer-name* nil)
(defvar *buffer-offset*)
(defun compiler-note-location ()
"Return the current compiler location."
(let ((lineno1 sys::*compile-file-lineno1*)
(lineno2 sys::*compile-file-lineno2*)
(file sys::*compile-file-truename*))
(cond ((and file lineno1 lineno2)
(make-location (list ':file (namestring file))
(list ':line lineno1)))
(*buffer-name*
(make-location (list ':buffer *buffer-name*)
(list ':offset *buffer-offset* 0)))
(t
(list :error "No error location available")))))
(defun signal-compiler-warning (cstring args severity orig-fn)
(signal (make-condition 'compiler-condition
:severity severity
:message (apply #'format nil cstring args)
:location (compiler-note-location)))
(apply orig-fn cstring args))
(defun c-warn (cstring &rest args)
(signal-compiler-warning cstring args :warning *orig-c-warn*))
(defun c-style-warn (cstring &rest args)
(dynamic-flet ((sys::c-warn *orig-c-warn*))
(signal-compiler-warning cstring args :style-warning *orig-c-style-warn*)))
(defun c-error (cstring &rest args)
(signal-compiler-warning cstring args :error *orig-c-error*))
(defimplementation call-with-compilation-hooks (function)
(handler-bind ((warning #'handle-notification-condition))
(dynamic-flet ((system::c-warn #'c-warn)
(system::c-style-warn #'c-style-warn)
(system::c-error #'c-error))
(funcall function))))
(defun handle-notification-condition (condition)
"Handle a condition caused by a compiler warning."
(signal (make-condition 'compiler-condition
:original-condition condition
:severity :warning
:message (princ-to-string condition)
:location (compiler-note-location))))
(defimplementation swank-compile-file (input-file output-file
load-p external-format
&key policy)
(declare (ignore policy))
(with-compilation-hooks ()
(with-compilation-unit ()
(multiple-value-bind (fasl-file warningsp failurep)
(compile-file input-file
:output-file output-file
:external-format external-format)
(values fasl-file warningsp
(or failurep
(and load-p
(not (load fasl-file)))))))))
(defimplementation swank-compile-string (string &key buffer position filename
policy)
(declare (ignore filename policy))
(with-compilation-hooks ()
(let ((*buffer-name* buffer)
(*buffer-offset* position))
(funcall (compile nil (read-from-string
(format nil "(~S () ~A)" 'lambda string))))
t)))
;;;; Portable XREF from the CMU AI repository.
(setq pxref::*handle-package-forms* '(cl:in-package))
(defmacro defxref (name function)
`(defimplementation ,name (name)
(xref-results (,function name))))
(defxref who-calls pxref:list-callers)
(defxref who-references pxref:list-readers)
(defxref who-binds pxref:list-setters)
(defxref who-sets pxref:list-setters)
(defxref list-callers pxref:list-callers)
(defxref list-callees pxref:list-callees)
(defun xref-results (symbols)
(let ((xrefs '()))
(dolist (symbol symbols)
(push (fspec-location symbol symbol) xrefs))
xrefs))
(when (find-package :swank-loader)
(setf (symbol-function (intern "USER-INIT-FILE" :swank-loader))
(lambda ()
(let ((home (user-homedir-pathname)))
(and (ext:probe-directory home)
(probe-file (format nil "~A/.swank.lisp"
(namestring (truename home)))))))))
;;; Don't set *debugger-hook* to nil on break.
(ext:without-package-lock ()
(defun break (&optional (format-string "Break") &rest args)
(if (not sys::*use-clcs*)
(progn
(terpri *error-output*)
(apply #'format *error-output*
(concatenate 'string "*** - " format-string)
args)
(funcall ext:*break-driver* t))
(let ((condition
(make-condition 'simple-condition
:format-control format-string
:format-arguments args))
;;(*debugger-hook* nil)
;; Issue 91
)
(ext:with-restarts
((continue
:report (lambda (stream)
(format stream (sys::text "Return from ~S loop")
'break))
()))
(with-condition-restarts condition (list (find-restart 'continue))
(invoke-debugger condition)))))
nil))
;;;; Inspecting
(defmethod emacs-inspect ((o t))
(let* ((*print-array* nil) (*print-pretty* t)
(*print-circle* t) (*print-escape* t)
(*print-lines* custom:*inspect-print-lines*)
(*print-level* custom:*inspect-print-level*)
(*print-length* custom:*inspect-print-length*)
(sys::*inspect-all* (make-array 10 :fill-pointer 0 :adjustable t))
(tmp-pack (make-package (gensym "INSPECT-TMP-PACKAGE-")))
(*package* tmp-pack)
(sys::*inspect-unbound-value* (intern "#<unbound>" tmp-pack)))
(let ((inspection (sys::inspect-backend o)))
(append (list
(format nil "~S~% ~A~{~%~A~}~%" o
(sys::insp-title inspection)
(sys::insp-blurb inspection)))
(loop with count = (sys::insp-num-slots inspection)
for i below count
append (multiple-value-bind (value name)
(funcall (sys::insp-nth-slot inspection)
i)
`((:value ,name) " = " (:value ,value)
(:newline))))))))
(defimplementation quit-lisp ()
#+lisp=cl (ext:quit)
#-lisp=cl (lisp:quit))
(defimplementation preferred-communication-style ()
nil)
;;; FIXME
;;;
;;; Clisp 2.48 added experimental support for threads. Basically, you
;;; can use :SPAWN now, BUT:
;;;
;;; - there are problems with GC, and threads stuffed into weak
;;; hash-tables as is the case for *THREAD-PLIST-TABLE*.
;;;
;;; See test case at
;;; http://thread.gmane.org/gmane.lisp.clisp.devel/20429
;;;
;;; Even though said to be fixed, it's not:
;;;
;;; http://thread.gmane.org/gmane.lisp.clisp.devel/20429/focus=20443
;;;
;;; - The DYNAMIC-FLET above is an implementation technique that's
;;; probably not sustainable in light of threads. This got to be
;;; rewritten.
;;;
;;; TCR (2009-07-30)
#+#.(cl:if (cl:find-package "MP") '(:and) '(:or))
(progn
(defimplementation spawn (fn &key name)
(mp:make-thread fn :name name))
(defvar *thread-plist-table-lock*
(mp:make-mutex :name "THREAD-PLIST-TABLE-LOCK"))
(defvar *thread-plist-table* (make-hash-table :weak :key)
"A hashtable mapping threads to a plist.")
(defvar *thread-id-counter* 0)
(defimplementation thread-id (thread)
(mp:with-mutex-lock (*thread-plist-table-lock*)
(or (getf (gethash thread *thread-plist-table*) 'thread-id)
(setf (getf (gethash thread *thread-plist-table*) 'thread-id)
(incf *thread-id-counter*)))))
(defimplementation find-thread (id)
(find id (all-threads)
:key (lambda (thread)
(getf (gethash thread *thread-plist-table*) 'thread-id))))
(defimplementation thread-name (thread)
;; To guard against returning #<UNBOUND>.
(princ-to-string (mp:thread-name thread)))
(defimplementation thread-status (thread)
(if (thread-alive-p thread)
"RUNNING"
"STOPPED"))
(defimplementation make-lock (&key name)
(mp:make-mutex :name name :recursive-p t))
(defimplementation call-with-lock-held (lock function)
(mp:with-mutex-lock (lock)
(funcall function)))
(defimplementation current-thread ()
(mp:current-thread))
(defimplementation all-threads ()
(mp:list-threads))
(defimplementation interrupt-thread (thread fn)
(mp:thread-interrupt thread :function fn))
(defimplementation kill-thread (thread)
(mp:thread-interrupt thread :function t))
(defimplementation thread-alive-p (thread)
(mp:thread-active-p thread))
(defvar *mailboxes-lock* (make-lock :name "MAILBOXES-LOCK"))
(defvar *mailboxes* (list))
(defstruct (mailbox (:conc-name mailbox.))
thread
(lock (make-lock :name "MAILBOX.LOCK"))
(waitqueue (mp:make-exemption :name "MAILBOX.WAITQUEUE"))
(queue '() :type list))
(defun mailbox (thread)
"Return THREAD's mailbox."
(mp:with-mutex-lock (*mailboxes-lock*)
(or (find thread *mailboxes* :key #'mailbox.thread)
(let ((mb (make-mailbox :thread thread)))
(push mb *mailboxes*)
mb))))
(defimplementation send (thread message)
(let* ((mbox (mailbox thread))
(lock (mailbox.lock mbox)))
(mp:with-mutex-lock (lock)
(setf (mailbox.queue mbox)
(nconc (mailbox.queue mbox) (list message)))
(mp:exemption-broadcast (mailbox.waitqueue mbox)))))
(defimplementation receive-if (test &optional timeout)
(let* ((mbox (mailbox (current-thread)))
(lock (mailbox.lock mbox)))
(assert (or (not timeout) (eq timeout t)))
(loop
(check-slclj-interrupts)
(mp:with-mutex-lock (lock)
(let* ((q (mailbox.queue mbox))
(tail (member-if test q)))
(when tail
(setf (mailbox.queue mbox) (nconc (ldiff q tail) (cdr tail)))
(return (car tail))))
(when (eq timeout t) (return (values nil t)))
(mp:exemption-wait (mailbox.waitqueue mbox) lock :timeout 0.2))))))
;;;; Weak hashtables
(defimplementation make-weak-key-hash-table (&rest args)
(apply #'make-hash-table :weak :key args))
(defimplementation make-weak-value-hash-table (&rest args)
(apply #'make-hash-table :weak :value args))
(defimplementation save-image (filename &optional restart-function)
(let ((args `(,filename
,@(if restart-function
`((:init-function ,restart-function))))))
(apply #'ext:saveinitmem args)))
;;; Local Variables:
;;; eval: (put 'compile-file-frobbing-notes 'lisp-indent-function 1)
;;; eval: (put 'dynamic-flet 'common-lisp-indent-function 1)
;;; End: