Skip to content
Navigation Menu
{{ message }}
forked from souffle-lang/java-pts
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathFactWriter.java
More file actions
791 lines (678 loc) · 23.1 KB
/
FactWriter.java
File metadata and controls
791 lines (678 loc) · 23.1 KB
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
import soot.Local;
import soot.RefLikeType;
import soot.SootClass;
import soot.SootField;
import soot.SootMethod;
import soot.Trap;
import soot.Type;
import soot.PrimType;
import soot.RefType;
import soot.NullType;
import soot.ArrayType;
import soot.Unit;
import soot.Value;
import soot.jimple.*;
import soot.jimple.internal.JimpleLocal;
/**
* FactWriter determines the format of a fact and adds it to a
* database. No traversal code here (see FactGenerator for that).
*
* @author Martin Bravenboer
* @license MIT
*/
public class FactWriter
{
private Database _db;
private Representation _rep;
public FactWriter(Database db)
{
_db = db;
_rep = new Representation();
}
public void writeStandardFacts()
{
_db.addEntity("PrimitiveType", "boolean");
_db.addEntity("PrimitiveType", "byte");
_db.addEntity("PrimitiveType", "char");
_db.addEntity("PrimitiveType", "short");
_db.addEntity("PrimitiveType", "int");
_db.addEntity("PrimitiveType", "long");
_db.addEntity("PrimitiveType", "float");
_db.addEntity("PrimitiveType", "double");
_db.addEntity("NullType", "null_type");
}
public void writeClassOrInterfaceType(SootClass c)
{
String rep = _rep.type(c);
Column col;
if(c.isInterface())
{
col = _db.addEntity("InterfaceType", rep);
}
else
{
col = _db.addEntity("ClassType", rep);
}
Column constant = _db.addEntity("ClassConstant", _rep.classconstant(c));
_db.add("ReifiedClass", col, constant);
_db.add("HeapAllocationType", constant, _db.addEntity("ClassType", "java.lang.Class"));
}
public void writeDirectSuperclass(SootClass sub, SootClass sup)
{
_db.add("DirectSuperclass",
writeType(sub),
writeType(sup));
}
public void writeDirectSuperinterface(SootClass clazz, SootClass iface)
{
_db.add("DirectSuperinterface",
writeType(clazz),
writeType(iface));
}
public Column writeType(SootClass c)
{
String result = _rep.type(c);
// The type itself is already taken care of by writing the
// SootClass declaration, so we don't actually write the type
// here, and just return the string.
return _db.asEntity(result);
}
public Column writeType(Type t)
{
String result = _rep.type(t);
Column c;
if(t instanceof ArrayType)
{
c = _db.addEntity("ArrayType", result);
Type componentType = ((ArrayType) t).getElementType();
_db.add("ComponentType", c, writeType(componentType));
}
else if(t instanceof PrimType || t instanceof NullType)
{
// taken care of by the standard facts
c = _db.asEntity(result);
}
else if(t instanceof RefType)
{
// taken care of by SootClass declaration.
c = _db.asEntity(result);
}
else
{
throw new RuntimeException("Don't know what to do with type " + t);
}
return c;
}
public void writeAssignLocal(SootMethod m, Local to, Local from)
{
if(to.getType() instanceof RefLikeType)
{
_db.add("AssignLocal",
_db.addEntity("VarRef", _rep.local(m, from)),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public void writeAssignLocal(SootMethod m, Local to, ThisRef ref)
{
_db.add("AssignLocal",
_db.addEntity("VarRef", _rep.thisVar(m)),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeAssignLocal(SootMethod m, Local to, ParameterRef ref)
{
if(to.getType() instanceof RefLikeType)
{
_db.add("AssignLocal",
_db.addEntity("VarRef", _rep.param(m, ref.getIndex())),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public void writeAssignInvoke(SootMethod inMethod, Local to, InvokeExpr expr, Session session)
{
String rep = writeInvokeHelper(inMethod, expr, session);
if(to.getType() instanceof RefLikeType)
{
_db.add("AssignReturnValue",
_db.addEntity("MethodInvocationRef", rep),
_db.addEntity("VarRef", _rep.local(inMethod, to)));
}
}
public void writeAssignHeapAllocation(SootMethod m, Local l, AnyNewExpr expr, Session session)
{
String rep = _rep.heapAlloc(m, expr, session);
_db.add("AssignHeapAllocation",
_db.addEntity("NormalHeapAllocationRef", rep),
_db.addEntity("VarRef", _rep.local(m, l)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
_db.addEntity("NormalHeapAllocationRef", rep);
_db.add("HeapAllocationType",
_db.asEntity(rep),
writeType(expr.getType()));
}
private Type getComponentType(ArrayType type)
{
// Soot calls the component type of an array type the "element
// type", which is rather confusing, since in an array type
// A[][][], the JVM Spec defines A to be the element type, and
// A[][] is the component type.
return type.getElementType();
}
/**
* NewMultiArray is slightly complicated because an array needs to
* be allocated separately for every dimension of the array.
*/
public void writeAssignNewMultiArrayExpr(SootMethod m, Local l, NewMultiArrayExpr expr, Session session)
{
Type type = (ArrayType) expr.getType();
// local variable to assign the current array allocation to.
String assignTo = _rep.local(m, l);
while(type instanceof ArrayType)
{
ArrayType arrayType = (ArrayType) type;
String rep = _rep.heapMultiArrayAlloc(m, expr, arrayType, session);
// assign the the current allocation to assignTo
_db.add("AssignHeapAllocation",
_db.addEntity("NormalHeapAllocationRef", rep),
_db.addEntity("VarRef", assignTo),
_db.addEntity("MethodSignatureRef", _rep.method(m))
);
_db.addEntity("NormalHeapAllocationRef", rep);
// write the type of the current allocation
_db.add("HeapAllocationType",
_db.asEntity(rep),
writeType(arrayType));
type = getComponentType(arrayType);
if(type instanceof ArrayType)
{
// there is a subarray to allocate and assign to the array.
String base = assignTo;
assignTo = _rep.newLocalIntermediate(m, l, session);
// assign the subarray to the array of dim+1
_db.add("StoreArrayIndex",
_db.addEntity("VarRef", assignTo),
_db.addEntity("VarRef", base),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
// the assignTo is a fresh variable, so we need to write a
// fact for its type and the declaring method.
_db.add("VarType",
_db.asEntity(assignTo),
writeType(type));
_db.add("VarDeclaringMethod",
_db.asEntity(assignTo),
_db.asEntity(_rep.method(m)));
}
}
}
public void writeAssignStringConstant(SootMethod m, Local l, StringConstant s)
{
String rep = _rep.stringconstant(m, s);
_db.add("AssignHeapAllocation",
_db.addEntity("StringConstant", rep),
_db.addEntity("VarRef", _rep.local(m, l)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
_db.add("HeapAllocationType",
_db.asEntity(rep),
writeType(s.getType()));
}
public void writeAssignClassConstant(SootMethod m, Local l, ClassConstant constant)
{
// System.err.println("class constant " + constant + " in " + m);
String s = constant.getValue().replace('/', '.');
String rep;
/* There is some weirdness in class constants: normal Java class
types seem to have been translated to a syntax with the initial
L, but arrays are still represented as [, for example [C for
char[] */
if(s.charAt(0) == '[')
{
// array type
Type t = soot.coffi.Util.v().jimpleTypeOfFieldDescriptor(s);
rep = _rep.classconstant(t);
_db.add("ReifiedClass", _db.asEntity(_rep.type(t)), _db.asEntity(rep));
// TODO only classes have their heap allocation type written already
}
else
{
SootClass c = soot.Scene.v().getSootClass(s);
if(c == null)
{
throw new RuntimeException("Unexpected class constant: " + constant);
}
rep = _rep.classconstant(c);
}
_db.add("AssignHeapAllocation",
_db.asEntity(rep),
_db.addEntity("VarRef", _rep.local(m, l)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeAssignCast(SootMethod m, Local to, Local from, Type t)
{
if(to.getType() instanceof RefLikeType && from.getType() instanceof RefLikeType)
{
_db.add("AssignCast",
writeType(t),
_db.addEntity("VarRef", _rep.local(m, from)),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
else
{
if(to.getType() instanceof RefLikeType || from.getType() instanceof RefLikeType)
{
throw new RuntimeException("error: didn't expect cast involving one reference type");
}
else
{
// cast from prim to prim, not relevant for pointer analysis.
}
}
}
private int getFieldIndex(SootField f)
{
SootClass c = f.getDeclaringClass();
int index = 0;
// compute field index offset
// (i.e. sum up all number of fields of all super classes)
if(c.hasSuperclass() && !c.isInterface()) {
SootClass s = c.getSuperclass();
while( s.hasSuperclass() && !s.isInterface()) {
index = index + s.getFields().size();
s = s.getSuperclass();
}
}
for(SootField t: c.getFields()) {
if(t == f) {
break;
}
index = index + 1;
}
return index;
}
public void writeStoreInstanceField(SootMethod m, SootField f, Local base, Local from)
{
if(f.getType() instanceof RefLikeType)
{
_db.add("StoreInstanceField",
_db.addEntity("VarRef", _rep.local(m, from)),
_db.addEntity("VarRef", _rep.local(m, base)),
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
_db.add("StoreInstanceFieldIndex",
_db.addEntity("VarRef", _rep.local(m, from)),
_db.addEntity("VarRef", _rep.local(m, base)),
_db.asIntColumn(String.valueOf(getFieldIndex(f))),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public void writeLoadInstanceField(SootMethod m, SootField f, Local base, Local to)
{
if(to.getType() instanceof RefLikeType)
{
_db.add("LoadInstanceField",
_db.addEntity("VarRef", _rep.local(m, base)),
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
_db.add("LoadInstanceFieldIndex",
_db.addEntity("VarRef", _rep.local(m, base)),
_db.asIntColumn(String.valueOf(getFieldIndex(f))),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public void writeStoreStaticField(SootMethod m, SootField f, Local from)
{
_db.add("StoreStaticField",
_db.addEntity("VarRef", _rep.local(m, from)),
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeStorePrimStaticField(SootMethod m, SootField f)
{
_db.add("StorePrimStaticField",
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeLoadStaticField(SootMethod m, SootField f, Local to)
{
_db.add("LoadStaticField",
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeLoadPrimStaticField(SootMethod m, SootField f)
{
_db.add("LoadPrimStaticField",
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeLoadArrayIndex(SootMethod m, Local base, Local to)
{
if(to.getType() instanceof RefLikeType)
{
_db.add("LoadArrayIndex",
_db.addEntity("VarRef", _rep.local(m, base)),
_db.addEntity("VarRef", _rep.local(m, to)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public void writeStoreArrayIndex(SootMethod m, Local base, Local from)
{
if(from.getType() instanceof RefLikeType)
{
_db.add("StoreArrayIndex",
_db.addEntity("VarRef", _rep.local(m, from)),
_db.addEntity("VarRef", _rep.local(m, base)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public void writeApplicationClass(SootClass application)
{
_db.add("ApplicationClass",
writeType(application));
}
public void writeDirectFieldIndexSignature(SootField f, int index)
{
_db.add("DirectFieldIndexSignature",
writeType(f.getType()),
_db.asIntColumn(String.valueOf(index)),
_db.addEntity("FieldSignatureRef", _rep.signature(f)));
}
public void writeFieldSignature(SootField f)
{
_db.add("FieldSignature",
_db.addEntity("FieldSignatureRef", _rep.signature(f)),
writeType(f.getDeclaringClass()),
_db.addEntity("SimpleNameRef", _rep.simpleName(f)),
writeType(f.getType()));
}
public void writeFieldModifier(SootField f, String modifier)
{
_db.add("FieldModifier",
_db.addEntity("ModifierRef", _rep.modifier(modifier)),
_db.addEntity("FieldSignatureRef", _rep.signature(f)));
}
public void writeMethodDeclaration(SootMethod m)
{
_db.add("MethodDeclaration",
_db.addEntity("MethodSignatureRef", _rep.signature(m)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeMethodSignature(SootMethod m)
{
_db.add("MethodSignatureSimpleName",
_db.addEntity("MethodSignatureRef", _rep.signature(m)),
_db.addEntity("SimpleNameRef", _rep.simpleName(m)));
_db.add("MethodSignatureDescriptor",
_db.addEntity("MethodSignatureRef", _rep.signature(m)),
_db.addEntity("MethodDescriptorRef", _rep.descriptor(m)));
_db.add("MethodSignatureType",
_db.addEntity("MethodSignatureRef", _rep.signature(m)),
writeType(m.getDeclaringClass()));
}
public void writeMethodModifier(SootMethod m, String modifier)
{
_db.add("MethodModifier",
_db.addEntity("ModifierRef", _rep.modifier(modifier)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeReturnVar(SootMethod m, Local l)
{
if(l.getType() instanceof RefLikeType)
{
_db.add("ReturnVar",
_db.addEntity("VarRef", _rep.local(m, l)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
_db.add("VarType",
_db.addEntity("VarRef", _rep.local(m, l)),
writeType(l.getType()));
}
}
public void writeNativeReturnVar(SootMethod m)
{
if(m.getReturnType() instanceof RefLikeType)
{
_db.add("ReturnVar",
_db.addEntity("VarRef", _rep.nativeReturnVar(m)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
_db.add("VarType",
_db.asEntity(_rep.nativeReturnVar(m)),
writeType(m.getReturnType()));
_db.add("VarDeclaringMethod",
_db.asEntity(_rep.nativeReturnVar(m)),
_db.asEntity(_rep.method(m)));
}
}
/**
* Throw statement
*/
public void writeThrow(SootMethod m, Local l, Session session)
{
String rep = _rep.throwLocal(m, l, session);
_db.add("Throw",
_db.addEntity("ThrowRef", rep),
_db.addEntity("VarRef", _rep.local(m, l)));
_db.add("ThrowMethod",
_db.addEntity("ThrowRef", rep),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
int index = session.getUnitNumber(session.getCurrentUnit());
_db.add("InstructionIndex",
_db.asEntity(rep),
_db.asIntColumn(String.valueOf(index)));
}
public void writeExceptionHandlerPrevious(SootMethod m, Trap current, Trap previous, Session session)
{
_db.add("ExceptionHandlerPrevious",
_db.addEntity("ExceptionHandlerRef", _rep.handler(m, current, session)),
_db.addEntity("ExceptionHandlerRef", _rep.handler(m, previous, session)));
}
public void writeExceptionHandler(SootMethod m, Trap handler, Session session)
{
SootClass exc = handler.getException();
Local caught;
{
Unit handlerUnit = handler.getHandlerUnit();
IdentityStmt stmt = (IdentityStmt) handlerUnit;
Value left = stmt.getLeftOp();
Value right = stmt.getRightOp();
if(right instanceof CaughtExceptionRef && left instanceof Local)
{
caught = (Local) left;
}
else
{
throw new RuntimeException("Unexpected start of exception handler: " + handlerUnit);
}
}
/* simple fact for Paddle compatibility mode */
_db.add("SimpleExceptionHandler",
_db.asEntity(_rep.type(exc)),
_db.addEntity("VarRef",_rep.local(m, caught)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
String rep = _rep.handler(m, handler, session);
_db.addEntity("ExceptionHandlerRef", rep);
_db.add("ExceptionHandlerMethod",
_db.asEntity(rep),
_db.asEntity(_rep.method(m)));
_db.add("ExceptionHandlerType",
_db.asEntity(rep),
_db.asEntity(_rep.type(exc)));
_db.add("ExceptionHandlerFormalParam",
_db.asEntity(rep),
_db.asEntity(_rep.local(m, caught)));
_db.add("ExceptionHandlerBegin",
_db.asEntity(rep),
_db.asIntColumn(String.valueOf(session.getUnitNumber(handler.getBeginUnit()))));
_db.add("ExceptionHandlerEnd",
_db.asEntity(rep),
_db.asIntColumn(String.valueOf(session.getUnitNumber(handler.getEndUnit()))));
}
public void writeThisVar(SootMethod m)
{
_db.add("ThisVar",
_db.addEntity("MethodSignatureRef", _rep.method(m)),
_db.addEntity("VarRef", _rep.thisVar(m)));
_db.add("VarType",
_db.asEntity(_rep.thisVar(m)),
writeType(m.getDeclaringClass()));
_db.add("VarDeclaringMethod",
_db.asEntity(_rep.thisVar(m)),
_db.asEntity(_rep.method(m)));
}
public void writeMethodDeclarationException(SootMethod m, SootClass exception)
{
_db.add("MethodDeclarationException",
writeType(exception),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
public void writeFormalParam(SootMethod m, int i)
{
if(m.getParameterType(i) instanceof RefLikeType)
{
_db.add("FormalParam",
_db.asIntColumn(_rep.index(i)),
_db.addEntity("MethodSignatureRef", _rep.method(m)),
_db.addEntity("VarRef", _rep.param(m, i)));
_db.add("VarType",
_db.asEntity(_rep.param(m, i)),
writeType(m.getParameterType(i)));
_db.add("VarDeclaringMethod",
_db.asEntity(_rep.param(m, i)),
_db.asEntity(_rep.method(m)));
}
}
public void writeLocal(SootMethod m, Local l)
{
if(l.getType() instanceof RefLikeType)
{
_db.add("VarType",
_db.addEntity("VarRef", _rep.local(m, l)),
writeType(l.getType()));
_db.add("VarDeclaringMethod",
_db.asEntity(_rep.local(m, l)),
_db.addEntity("MethodSignatureRef", _rep.method(m)));
}
}
public Local writeStringConstantExpression(SootMethod inMethod, StringConstant constant, Session session)
{
// introduce a new temporary variable
String basename = "$stringconstant";
String varname = basename + session.nextNumber(basename);
Local l = new JimpleLocal(varname, RefType.v("java.lang.String"));
writeLocal(inMethod, l);
writeAssignStringConstant(inMethod, l, constant);
return l;
}
public Local writeClassConstantExpression(SootMethod inMethod, ClassConstant constant, Session session)
{
// introduce a new temporary variable
String basename = "$classconstant";
String varname = basename + session.nextNumber(basename);
Local l = new JimpleLocal(varname, RefType.v("java.lang.Class"));
writeLocal(inMethod, l);
writeAssignClassConstant(inMethod, l, constant);
return l;
}
private void writeActualParams(SootMethod inMethod, InvokeExpr expr, String invokeExprRepr, Session session)
{
for(int i = 0; i < expr.getArgCount(); i++)
{
Value v = expr.getArg(i);
if(v instanceof StringConstant)
{
v = writeStringConstantExpression(inMethod, (StringConstant) v, session);
}
else if(v instanceof ClassConstant)
{
v = writeClassConstantExpression(inMethod, (ClassConstant) v, session);
}
if(v instanceof Local)
{
Local l = (Local) v;
if(l.getType() instanceof RefLikeType)
{
_db.add("ActualParam",
_db.asIntColumn(_rep.index(i)),
_db.addEntity("MethodInvocationRef", invokeExprRepr),
_db.addEntity("VarRef", _rep.local(inMethod, l)));
}
}
else if( v instanceof IntConstant
|| v instanceof LongConstant
|| v instanceof FloatConstant
|| v instanceof DoubleConstant
|| v instanceof NullConstant)
{
continue;
}
else
{
throw new RuntimeException("Unknown actual parameter: " + v + " " + v.getClass());
}
}
}
public void writeInvoke(SootMethod inMethod, InvokeExpr expr, Session session)
{
writeInvokeHelper(inMethod, expr, session);
}
private String writeInvokeHelper(SootMethod inMethod, InvokeExpr expr, Session session)
{
String rep = _rep.invoke(inMethod, expr, session);
writeActualParams(inMethod, expr, rep, session);
_db.addEntity("MethodSignatureRef", _rep.method(inMethod));
_db.addEntity("MethodInvocationRef", rep);
_db.addEntity("MethodSignatureRef", _rep.signature(expr.getMethod()));
if(expr instanceof StaticInvokeExpr)
{
_db.add("StaticMethodInvocation",
_db.asEntity(rep),
_db.asEntity(_rep.signature(expr.getMethod())),
_db.asEntity(_rep.method(inMethod)));
_db.add("StaticMethodInvocationIn",
_db.asEntity(rep),
_db.asEntity(_rep.method(inMethod)));
_db.add("StaticMethodInvocationSignature",
_db.asEntity(rep),
_db.asEntity(_rep.signature(expr.getMethod())));
}
else if(expr instanceof VirtualInvokeExpr || expr instanceof InterfaceInvokeExpr)
{
_db.add("VirtualMethodInvocationBase",
_db.asEntity(rep),
_db.addEntity("VarRef", _rep.local(inMethod, (Local) ((InstanceInvokeExpr) expr).getBase())));
_db.add("VirtualMethodInvocationSignature",
_db.asEntity(rep),
_db.asEntity(_rep.signature(expr.getMethod())));
_db.add("VirtualMethodInvocationIn",
_db.asEntity(rep),
_db.asEntity(_rep.method(inMethod)));
_db.add("VirtualMethodInvocation",
_db.asEntity(rep),
_db.asEntity(_rep.signature(expr.getMethod())),
_db.asEntity(_rep.method(inMethod)));
}
else if(expr instanceof SpecialInvokeExpr)
{
_db.add("SpecialMethodInvocationBase",
_db.asEntity(rep),
_db.addEntity("VarRef", _rep.local(inMethod, (Local) ((InstanceInvokeExpr) expr).getBase())));
_db.add("SpecialMethodInvocationSignature",
_db.asEntity(rep),
_db.asEntity(_rep.signature(expr.getMethod())));
_db.add("SpecialMethodInvocationIn",
_db.asEntity(rep),
_db.asEntity(_rep.method(inMethod)));
}
else
{
throw new RuntimeException("Cannot handle invoke expr: " + expr);
}
_db.add("InstructionIndex",
_db.asEntity(rep),
_db.asIntColumn(String.valueOf(session.getUnitNumber(session.getCurrentUnit()))));
return rep;
}
}
You can’t perform that action at this time.