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zebra
Support modular smoke & cleanup.
Annotate for file src/clos.lisp
2009-04-05 tobias
1
(in-package #:smoke)
15:36:29 '
2
'
3
(declaim (inline lispify))
'
4
(defun lispify (name &optional (package nil))
'
5
"Returns the interned symbol for name in Lisp style."
'
6
(declare (string name)
'
7
(optimize (speed 3)))
'
8
(if (null package)
'
9
(values (intern (cxx-to-lisp name)))
'
10
(values (intern (cxx-to-lisp name) package))))
'
11
'
12
(defmacro define-string-transform (name documentation &body states)
'
13
"Defines a function to transform a string."
'
14
(let ((output (gensym))
'
15
(index (gensym))
'
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(length (gensym)))
'
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`(defun ,name (input)
'
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,documentation
'
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(declare (simple-string input)
'
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(optimize (speed 3)))
2009-07-22 tobias
21
;; At least on sbcl 1.0.25.debian CONCATENATE is faster than
22:26:05 '
22
;; VECTOR-PUSH-EXTEND.
2009-04-05 tobias
23
(let ((,output "")
15:36:29 '
24
(,index 0)
'
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(,length (length input))
'
26
(char #\Null))
'
27
(declare (base-char char))
'
28
(macrolet ((next-char ()
'
29
`(if (>= ,',index ,',length)
'
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(return-from transform ,',output)
'
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(progn
'
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(setf char (aref input ,',index))
'
33
(incf ,',index))))
'
34
(go-next (tag)
'
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`(progn (next-char)
'
36
(go ,tag)))
'
37
(append-char (char)
'
38
`(setf ,',output (concatenate 'string
'
39
,',output
'
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(string ,char)))))
'
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(block transform
'
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(tagbody
'
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(next-char) ;; Get first char
'
44
,@(reduce #'append
'
45
(mapcar #'(lambda (state)
'
46
(if (stringp (second state))
'
47
`(,(first state) . ,(cddr state))
'
48
state))
'
49
states)))))))))
'
50
'
51
'
52
(define-string-transform lisp-to-cxx
'
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"Converts LISP-STYLE to camelCase.
2009-07-01 tobias
54
Note that (LISP-TO-CXX (CXX-TO-LIST SOME-STRING)) will not necessarily return
10:54:01 '
55
a string equal to SOME-STRING."
2009-04-05 tobias
56
(default
2009-07-01 tobias
57
"Down case, convert _ and dispatch."
2009-04-05 tobias
58
(case char
15:36:29 '
59
(#\- (go-next camel-upcase))
'
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(#\. (go-next namespace))
'
61
(t (append-char (char-downcase char))
'
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(go-next default))))
'
63
(camel-upcase
'
64
"Convert camelCase to lisp-style."
'
65
(append-char char)
'
66
(go-next default))
'
67
(namespace
'
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"Convert . to ::"
'
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(append-char #\:)
'
70
(append-char #\:)
'
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(go default)))
'
72
'
73
(define-string-transform cxx-to-lisp
2009-04-17 tobias
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"Returns camelCase STRING in lisp-style."
2009-04-05 tobias
75
(begin
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76
"Strip leading Q or K."
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77
(case char
15:36:29 '
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(#\K (go-next default))
'
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(#\Q (go-next default))
'
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(t (go default))))
'
81
(default
2009-07-01 tobias
82
"Up case, convert _ and dispatch."
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83
(case char
15:36:29 '
84
(#\: (go-next namespace))
'
85
(#\_ (append-char #\-)
'
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(go-next default))
2009-04-17 tobias
87
(#\ (append-char #\-) ;; space (cast operators)
15:26:55 '
88
(go-next default))
2009-04-05 tobias
89
(t (append-char (char-upcase char))
15:36:29 '
90
(if (lower-case-p char)
'
91
(go-next camel-case)
'
92
(go-next default)))))
'
93
(namespace
2009-06-22 tobias
94
"C++ namespace separator"
2009-04-05 tobias
95
(assert (eql #\: char))
15:36:29 '
96
(append-char #\.)
'
97
(go-next default))
'
98
(camel-case
'
99
"Convert camelCase to lisp-style."
'
100
(if (upper-case-p char)
'
101
(progn
'
102
(append-char #\-)
'
103
(append-char char)
'
104
(go-next default))
'
105
(go default))))
'
106
'
107
'
108
(defmethod print-object ((object smoke-standard-object) stream)
2009-05-27 tobias
109
(if (slot-boundp object 'pointer)
17:22:08 '
110
(print-unreadable-object (object stream :type t)
2009-08-27 tobias
111
(when (const-p object)
11:43:13 '
112
(princ "CONST " stream))
2009-05-27 tobias
113
(princ (pointer object) stream))
17:22:08 '
114
(call-next-method)))
2009-04-05 tobias
115
15:36:29 '
116
(defclass smoke-standard-class (standard-class smoke-class)
2009-05-24 tobias
117
()
2009-04-05 tobias
118
(:documentation "A Smoke C++ class"))
15:36:29 '
119
2009-05-31 tobias
120
(defclass cxx:class (smoke-standard-class)
2009-07-08 tobias
121
()
2009-05-31 tobias
122
(:documentation "Metaclass to extend Smoke Objects."))
2009-05-14 tobias
123
2009-08-30 tobias
124
(defclass smoke-multi-superclass-mixin ()
14:12:44 '
125
((extra-objects :reader extra-objects
'
126
:initarg :extra-objects)))
'
127
2009-08-02 tobias
128
(defmethod closer-mop:validate-superclass ((class smoke-standard-class)
10:12:41 '
129
(superclass standard-class))
2009-07-22 tobias
130
t)
2009-04-05 tobias
131
2009-08-02 tobias
132
(defmethod closer-mop:validate-superclass ((class cxx:class)
10:12:41 '
133
(superclass smoke-standard-class))
2009-07-22 tobias
134
t)
2009-04-05 tobias
135
2009-08-02 tobias
136
;; Sets NIL superclass to SMOKE-STANDARD-OBJECT instead of the default
10:12:41 '
137
;; STANDARD-OBJECT.
'
138
(defun init-smoke-standard-class (class next-method
'
139
&rest args &key direct-superclasses
'
140
&allow-other-keys)
'
141
(apply next-method class
'
142
:direct-superclasses (or direct-superclasses
'
143
(list (find-class 'smoke-standard-object)))
'
144
args))
2009-04-05 tobias
145
2009-08-02 tobias
146
(defmethod initialize-instance :around ((class smoke-standard-class) &rest args)
10:12:41 '
147
(apply #'init-smoke-standard-class class #'call-next-method args))
'
148
'
149
(defmethod reinitialize-instance :around ((class smoke-standard-class) &rest args)
'
150
(apply #'init-smoke-standard-class class #'call-next-method args))
2009-04-05 tobias
151
15:36:29 '
152
2009-08-02 tobias
153
(defun init-cxx-class (class next-method &rest args &key direct-superclasses
2009-08-30 tobias
154
direct-default-initargs &allow-other-keys)
2009-04-05 tobias
155
(assert (not (null direct-superclasses))
15:36:29 '
156
(direct-superclasses)
2009-08-30 tobias
157
"No superclass supplied for class ~A" class)
14:12:44 '
158
(let ((superclass (first direct-superclasses))
'
159
(extra-superclasses (remove-if-not #'(lambda (class)
'
160
(typep class 'smoke-standard-class))
'
161
(rest direct-superclasses))))
'
162
(assert (typep superclass 'smoke-standard-class)
2009-04-05 tobias
163
((first direct-superclasses))
2009-08-30 tobias
164
"The first superclass ~A must be an subclass of an Smoke class."
14:12:44 '
165
class)
2009-06-10 tobias
166
(assert (virtual-destructor-p superclass)
11:55:55 '
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()
2009-08-30 tobias
168
"The superclass ~A of ~A has a non virtual destructor."
14:12:44 '
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superclass class)
'
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(when extra-superclasses
'
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(dolist (superclass extra-superclasses)
'
172
(unless (virtual-destructor-p superclass)
'
173
(cerror "Continue anyway"
'
174
"The superclass ~A of ~A has a non virtual destructor."
'
175
superclass class)))
'
176
(setf direct-superclasses
'
177
(append direct-superclasses
'
178
(list (find-class 'smoke-multi-superclass-mixin))))
'
179
(push `(:extra-objects ,extra-superclasses ,#'(lambda ()
'
180
extra-superclasses))
'
181
direct-default-initargs))
2009-04-05 tobias
182
(apply
2009-08-02 tobias
183
next-method class
2009-07-08 tobias
184
:id (id superclass)
2009-06-22 tobias
185
:smoke (smoke superclass)
2009-04-05 tobias
186
:direct-superclasses direct-superclasses
2009-08-30 tobias
187
:direct-default-initargs direct-default-initargs
2009-04-05 tobias
188
args)))
15:36:29 '
189
2009-08-02 tobias
190
(defmethod reinitialize-instance :around ((class cxx:class) &rest args)
10:12:41 '
191
(apply #'init-cxx-class class #'call-next-method args))
'
192
'
193
(defmethod initialize-instance :around ((class cxx:class) &rest args)
'
194
(apply #'init-cxx-class class #'call-next-method args))
'
195
2010-01-26 tobias
196
(defun smoke-class-symbol (smoke-class)
16:26:09 '
197
"Returns the Lisp class-name of SMOKE-CLASS:"
'
198
(if (external-p smoke-class)
'
199
(class-name (find-smoke-class smoke-class))
'
200
(lispify (name smoke-class))))
2009-04-05 tobias
201
2009-06-11 tobias
202
(defun make-smoke-classes (package smoke)
2009-07-01 tobias
203
"Constructs a lisp class in PACKAGE for each one in the Smoke module SMOKE."
2009-06-22 tobias
204
(declare (optimize (speed 3)))
2010-01-10 tobias
205
(let ((impl-package *package*)
08:49:36 '
206
(*package* (find-package package)))
2009-06-22 tobias
207
(add-id-class-map smoke)
2009-04-05 tobias
208
(map-classes
15:36:29 '
209
#'(lambda (class)
2010-01-10 tobias
210
(unless (external-p class)
2009-08-27 tobias
211
(with-simple-restart (skip "Skip generating class ~A" (name class))
2010-01-10 tobias
212
(let ((class-name
08:49:36 '
213
;; There is a QGlobalSpace class per Smoke module.
'
214
;; Put it in *package* and not PACKAGE to avoid
'
215
;; clashes between multiple modules.
'
216
(if (string= "QGlobalSpace" (name class))
'
217
(lispify "QGlobalSpace" impl-package)
'
218
(lispify (name class)))))
'
219
(add-id class
'
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(closer-mop:ensure-class class-name
'
221
:direct-superclasses
'
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(mapcar #'smoke-class-symbol
'
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(smoke-class-direct-superclasses class))
'
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:id (id class)
'
225
:smoke (smoke class)
'
226
:metaclass 'smoke-standard-class))
'
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(when (eql (symbol-package class-name) *package*)
'
228
(export class-name))))))
2009-06-11 tobias
229
smoke)))
2009-04-05 tobias
230
2009-04-12 tobias
231
(defclass smoke-gf (cxx-generic-function)
14:43:33 '
232
((cxx-name :reader name :initarg :cxx-name
2009-05-11 tobias
233
:type string
11:07:39 '
234
:documentation "The C++ name of the method."))
2009-04-05 tobias
235
(:metaclass closer-mop:funcallable-standard-class)
2009-05-11 tobias
236
(:documentation "Smoke generic function."))
2009-04-05 tobias
237
2009-06-22 tobias
238
(declaim (inline smoke-class-of))
2009-04-05 tobias
239
(defun smoke-class-of (object)
2009-07-01 tobias
240
"Returns the class of OBJECT or OBJECT iff it already is a class."
2009-06-22 tobias
241
(declare (optimize (speed 3)))
12:18:08 '
242
(if (typep object 'smoke-class)
2009-04-05 tobias
243
object
15:36:29 '
244
(class-of object)))
'
245
2009-04-12 tobias
246
;;; To speed up the startup
2009-04-05 tobias
247
;;; ENSURE-METHOD is only called as needed.
15:36:29 '
248
(defmethod no-applicable-method ((gf smoke-gf) &rest args)
'
249
"Calls the smoke method."
2009-06-22 tobias
250
(declare (dynamic-extent args)
12:18:08 '
251
(optimize (speed 3)))
2009-04-17 tobias
252
(call-using-args (first args) (name gf) (rest args)))
2009-04-05 tobias
253
2009-04-12 tobias
254
(defmethod add-method :after ((gf cxx-method-generic-function) method)
2009-04-05 tobias
255
"Adds a method which calls the smoke method, to make call-next-method work."
15:36:29 '
256
(when (null (rest (closer-mop:generic-function-methods gf)))
2009-04-12 tobias
257
(let ((lambda-list (closer-mop:method-lambda-list method)))
14:43:33 '
258
(closer-mop:ensure-method
'
259
gf
'
260
`(lambda ,lambda-list
'
261
(declare (optimize (speed 3)))
2009-05-11 tobias
262
(call-using-args ,(first lambda-list)
17:55:42 '
263
(name ,(cxx-generic-function gf))
2009-05-11 tobias
264
(list ,@(rest lambda-list))))))))
2009-04-05 tobias
265
15:36:29 '
266
(defcallback destructed :void
2009-07-22 tobias
267
((object-pointer :pointer))
2009-06-22 tobias
268
(declare (optimize (speed 3)))
2009-04-05 tobias
269
(let ((object (get-object object-pointer)))
2009-08-02 tobias
270
;; The destructed callback can be the result of deleting the object
10:12:41 '
271
;; in a finalizer. In that case the object is already removed from
'
272
;; *object-map* when the callback is invoked. Thus OBJECT can be NIL.
2009-04-05 tobias
273
(when object
2009-09-02 tobias
274
(when (typep object 'smoke-multi-superclass-mixin)
11:49:34 '
275
(dolist (extra-object (extra-objects object))
'
276
(unless (null-pointer-p (pointer extra-object))
'
277
(remove-object (pointer extra-object))
'
278
(delete-object extra-object))))
2009-06-30 tobias
279
(remove-finalizer object)
2009-04-05 tobias
280
(remove-object object-pointer)
15:36:29 '
281
(setf (slot-value object 'pointer) (null-pointer)))))
'
282
2009-06-22 tobias
283
(declaim (inline argument-to-lisp))
12:18:08 '
284
(defun argument-to-lisp (stack-item type)
'
285
;; FIXME do not take ownership of stack allocated objects.
2009-08-02 tobias
286
;; It looks like there is no stack allocation in Qt virtual method signatures.
2009-06-22 tobias
287
(type-to-lisp stack-item type))
12:18:08 '
288
2009-04-05 tobias
289
(defun stack-to-args (stack arg &optional (args nil))
15:36:29 '
290
"Returns the arguments in STACK, where ARG is the type
'
291
of the first argument, as an list of Lisp objects."
'
292
(if (end-p arg)
2009-06-22 tobias
293
(reverse args)
12:18:08 '
294
(stack-to-args (inc-pointer stack
'
295
(foreign-type-size 'smoke-stack-item))
2009-04-05 tobias
296
(next arg)
2009-08-27 tobias
297
(cons (argument-to-lisp (mem-ref stack 'smoke-stack-item)
2009-07-22 tobias
298
arg)
2009-06-22 tobias
299
args))))
2009-04-05 tobias
300
2009-09-02 tobias
301
(defun convert-argument (argument type &optional disown)
11:49:34 '
302
"Returns ARGUMENT converted to TYPE and removes the ownership when
'
303
it is passed on the stack."
'
304
(flet ((disown (object)
'
305
(remove-finalizer object)
'
306
(when (typep object 'smoke-standard-object)
'
307
(remove-object (pointer object)))))
'
308
(let ((rank (get-conversion-sequence argument type nil)))
'
309
(if (null rank)
'
310
(let ((rank (get-conversion-sequence argument type t)))
'
311
(if (null rank)
'
312
(error "Can not convert the argument ~S to ~A."
'
313
argument (name type))
'
314
(let ((ret (funcall (conversion-function-name rank)
'
315
argument)))
'
316
(when (and disown (stack-p type))
'
317
(disown ret))
'
318
ret)))
'
319
(prog1 (funcall (conversion-function-name rank) argument)
'
320
(when (and disown (stack-p type))
'
321
(disown argument)))))))
2009-04-05 tobias
322
2009-06-08 tobias
323
(defun put-returnvalue (stack value type object)
2009-04-05 tobias
324
(unless (void-p type)
2009-05-26 tobias
325
(let ((stack (make-call-stack stack)))
2009-07-08 tobias
326
(setf (call-stack-top stack) (call-stack-pointer stack))
2009-09-02 tobias
327
(let ((converted-value (convert-argument value type t)))
11:49:34 '
328
(push-smoke-stack stack converted-value (type-id type))))))
2009-04-05 tobias
329
2009-05-19 tobias
330
(defun get-gf-for-method (smoke-method)
11:09:12 '
331
(declare (smoke-method smoke-method)
'
332
(optimize (speed 3)))
'
333
(symbol-function (lispify (name smoke-method) "CXX")))
2009-05-19 tobias
334
2009-08-30 tobias
335
;; Receive virtual function calls.
2009-04-05 tobias
336
(defcallback dispatch-method :boolean
2010-02-19 tobias
337
((binding :pointer)
21:10:24 '
338
(method smoke-index)
2009-06-30 tobias
339
(object-ptr :pointer)
22:47:39 '
340
(stack smoke-stack)
'
341
(abstract :boolean))
2009-04-05 tobias
342
(declare (optimize (speed 3)))
2009-06-30 tobias
343
(let ((object (get-object object-ptr)))
2009-08-02 tobias
344
;; The Lisp OBJECT can be gc'ed but we might still receive a
10:12:41 '
345
;; QObject destructed event when the C++ instance is deleted in
'
346
;; the finalizer. Thus OBJECT might be NIL.
2010-02-18 tobias
347
(when (and object (typep (class-of object) 'cxx:class))
19:57:00 '
348
;; Do not allow overwriting methods of classes the users has
'
349
;; not derived from (like in C++), to reduce overhead.
2009-08-02 tobias
350
(let* ((method (make-smoke-method
2010-02-19 tobias
351
:smoke (gethash (pointer-address
21:10:24 '
352
(smoke-get-smoke binding))
'
353
*smoke-modules*)
2009-08-02 tobias
354
:id method)))
10:12:41 '
355
(loop
'
356
(restart-case
'
357
(return-from dispatch-method
'
358
(let ((gf (get-gf-for-method method)))
'
359
(declare (function gf))
'
360
(if (null (gf-methods gf))
'
361
(progn
'
362
(when abstract
'
363
(error "Abstract method ~A of ~A called."
'
364
(method-declaration method) object))
'
365
nil)
'
366
(if object
'
367
(progn
'
368
(put-returnvalue
'
369
stack
'
370
(apply gf object
'
371
(stack-to-args
'
372
(inc-pointer stack (foreign-type-size
'
373
'smoke-stack-item))
'
374
(get-first-argument method)))
'
375
(return-type method) object)
'
376
t)
'
377
nil))))
'
378
;; Restarts to prevent stack unwinding across the C++ stack.
'
379
(call-default ()
'
380
:report (lambda (stream)
'
381
(declare (stream stream))
'
382
(format stream
'
383
"Call default implementation ~A instead."
'
384
method))
'
385
:test (lambda (condition)
'
386
(declare (ignore condition))
'
387
(not abstract))
'
388
(return-from dispatch-method nil))
'
389
(use-returnvalue (return-value)
'
390
:report (lambda (stream)
'
391
(declare (stream stream))
'
392
(format stream "Supply a return value for ~A."
'
393
(method-declaration method)))
'
394
:test (lambda (condition)
'
395
(declare (ignore condition))
'
396
(not (void-p (return-type method))))
'
397
:interactive (lambda ()
'
398
(format *query-io* "~&Enter a new return value: ")
'
399
(multiple-value-list (eval (read *query-io*))))
'
400
(put-returnvalue stack return-value
'
401
(return-type method)
'
402
(get-object object-ptr))
'
403
(return-from dispatch-method t))
'
404
(return ()
'
405
:report (lambda (stream)
'
406
(declare (stream stream))
'
407
(format stream "Return void for ~A."
'
408
(method-declaration method)))
'
409
:test (lambda (condition)
'
410
(declare (ignore condition))
'
411
(void-p (return-type method)))
'
412
(return-from dispatch-method (values)))
'
413
(retry ()
'
414
:report (lambda (stream)
'
415
(declare (stream stream))
'
416
(format stream "Try again calling ~A."
'
417
(method-declaration method))))))
'
418
nil))))
2009-04-05 tobias
419
15:36:29 '
420
;;FIXME use CHANGE-CLASS instead?
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(defgeneric cast (object class)
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(declare (optimize (speed 3)))
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(:documentation "Returns a pointer of type CLASS to the C++ object of OBJECT.")
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(:method (object class)
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(declare (optimize (speed 3)))
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(assert (derived-p (class-of object) class)
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()
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"Can not cast object ~A of class ~A to class ~A."
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object (name (class-of object)) (name class))
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(smoke-cast (smoke-module-pointer (smoke (class-of object))) (pointer object)
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(id (class-of object)) (id class)))
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(:method ((object smoke-multi-superclass-mixin) class)
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(if (derived-p (class-of object) class)
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(call-next-method)
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(let ((extra-object (find-if #'(lambda (o)
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(derived-p (class-of o) class))
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(extra-objects object))))
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(assert extra-object
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()
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"Can not cast object ~A to class ~A."
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object (name class))
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(cast extra-object class)))))
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(defun upcast (object class)
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(assert (derived-p class (class-of object))
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()
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"Can not upcast object ~A of class ~A to class ~A."
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object (name (class-of object)) (name class))
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(smoke-cast (smoke-module-pointer (smoke class)) (pointer object)
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(id (class-of object)) (id (real-class class))))
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'
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;; The constructor name is the name of the class minus any namespace parts.
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(defun constructor-name (class)
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(let ((name-start (search "::" (name class) :from-end t)))
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(if name-start
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(subseq (name class) (+ name-start 2))
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(name class))))
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(defun call-constructor (class arguments)
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(multiple-value-bind (method sequence)
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(find-best-viable-function (constructor-name class)
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arguments
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class)
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(when (null method)
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(error "No constructor for class ~A with
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the arguments ~S." class arguments))
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(pointer-call method (null-pointer)
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(mapcar #'(lambda (conversion argument)
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(funcall conversion argument))
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sequence arguments))))
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(defmethod initialize-instance :after ((object smoke-standard-object)
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&key args
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(arg0 nil arg0p)
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(arg1 nil arg1p)
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(arg2 nil arg2p)
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&allow-other-keys)
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"Initializes a Smoke object. Calls its constructor with the arguments supplied
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by the key :ARGS and sets the smoke binding."
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(declare (optimize (speed 3)))
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(assert (not (and (slot-boundp object 'pointer)
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(not (null args))))
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((slot-value object 'pointer) args)
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"Pointer ~A bound and constructor argument :ARGS ~S supplied."
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(slot-value object 'pointer) args)
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(unless (slot-boundp object 'pointer)
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(if arg0p
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(setf (slot-value object 'pointer)
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(call-constructor (class-of object)
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(cond
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(arg2p (list arg0 arg1 arg2))
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(arg1p (list arg0 arg1))
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(t (list arg0)))))
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(setf (slot-value object 'pointer)
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(call-constructor (class-of object) args)))
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(set-binding object)
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(take-ownership object)
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(add-object object)))
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(defun construct-extra-objects (object extra-objects)
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(loop for class in extra-objects
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collect (let ((extra-object (make-instance (first extra-objects)
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:pointer (call-constructor (first extra-objects)
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nil))))
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(set-binding extra-object)
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(setf (get-object (pointer extra-object)) object)
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extra-object)))
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(defmethod initialize-instance :after ((object smoke-multi-superclass-mixin)
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&key args)
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(setf (slot-value object 'extra-objects)
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(construct-extra-objects object (extra-objects object))))
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'
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(defmethod make-finalize ((object smoke-multi-superclass-mixin))
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(let ((pointer (pointer object))
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(extra-objects (extra-objects object))
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(class (class-of object)))
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#'(lambda ()
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(declare (optimize (speed 3)))
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(handler-case (progn
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(delete-pointer pointer class)
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(dolist (object extra-objects)
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(delete-object object)))
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(error (condition)
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(report-finalize-error condition 't (name class) pointer))))))
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(defmethod instance-to-lisp (pointer class type)
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(declare (type smoke-standard-class class)
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(optimize (speed 3)))
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(let ((ret (make-instance class :pointer pointer
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:const-p (const-p type))))
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(when (stack-p type)
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(take-ownership ret)
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(add-object ret))
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ret))
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(defun keep-wrapper (object new-owner)
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(declare (type smoke-standard-object object)
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(optimize (speed 3)))
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(when (member object (owned-objects new-owner))
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(cerror "Ignore" "~A has already been added to ~A."
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object new-owner))
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(push object (owned-objects new-owner)))
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(declaim (inline remove-wrapper-object))
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(defun remove-wrapper-object (object owner)
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(remove object (owned-objects owner)))
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(defun transfer-ownership-to (object new-owner)
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"Transfers the ownership of OBJECT to C++."
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(declare (optimize (speed 3)))
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(remove-finalizer object)
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(if (virtual-destructor-p (class-of object))
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(keep-wrapper object new-owner)
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(remove-object (pointer object))))
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(defun take-ownership (object &optional current-owner)
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"Assigns the ownership of OBJECT to Lisp. i.e.:
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cl-smoke is responsible for deleting the object."
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(when current-owner
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(remove-wrapper-object object current-owner))
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(set-finalizer object))