1 package Analysis.SSJava;
3 import java.util.HashSet;
4 import java.util.Hashtable;
5 import java.util.Iterator;
8 import IR.ClassDescriptor;
9 import IR.MethodDescriptor;
12 import IR.SymbolTable;
14 import IR.Tree.ArrayAccessNode;
15 import IR.Tree.ArrayInitializerNode;
16 import IR.Tree.AssignmentNode;
17 import IR.Tree.BlockExpressionNode;
18 import IR.Tree.BlockNode;
19 import IR.Tree.BlockStatementNode;
20 import IR.Tree.CastNode;
21 import IR.Tree.CreateObjectNode;
22 import IR.Tree.DeclarationNode;
23 import IR.Tree.ExpressionNode;
24 import IR.Tree.FieldAccessNode;
25 import IR.Tree.IfStatementNode;
26 import IR.Tree.InstanceOfNode;
28 import IR.Tree.LoopNode;
29 import IR.Tree.MethodInvokeNode;
30 import IR.Tree.OpNode;
31 import IR.Tree.ReturnNode;
32 import IR.Tree.SubBlockNode;
33 import IR.Tree.TertiaryNode;
36 public class MethodAnnotationCheck {
39 SSJavaAnalysis ssjava;
42 Set<MethodDescriptor> annotatedMDSet;
43 Hashtable<MethodDescriptor, Set<MethodDescriptor>> caller2calleeSet;
45 public MethodAnnotationCheck(SSJavaAnalysis ssjava, State state, TypeUtil tu) {
49 caller2calleeSet = new Hashtable<MethodDescriptor, Set<MethodDescriptor>>();
50 annotatedMDSet = new HashSet<MethodDescriptor>();
53 public void methodAnnoatationCheck() {
54 SymbolTable classtable = state.getClassSymbolTable();
55 HashSet toanalyze = new HashSet();
56 toanalyze.addAll(classtable.getValueSet());
57 toanalyze.addAll(state.getTaskSymbolTable().getValueSet());
58 while (!toanalyze.isEmpty()) {
59 Object obj = toanalyze.iterator().next();
60 ClassDescriptor cd = (ClassDescriptor) obj;
63 if (!cd.isInterface()) {
64 for (Iterator method_it = cd.getMethods(); method_it.hasNext();) {
65 MethodDescriptor md = (MethodDescriptor) method_it.next();
66 checkMethodBody(cd, md);
72 for (Iterator iterator = annotatedMDSet.iterator(); iterator.hasNext();) {
73 MethodDescriptor md = (MethodDescriptor) iterator.next();
74 ssjava.addAnnotationRequire(md);
77 Set<Pair> visited = new HashSet<Pair>();
78 Set<MethodDescriptor> tovisit = new HashSet<MethodDescriptor>();
79 tovisit.addAll(annotatedMDSet);
81 while (!tovisit.isEmpty()) {
82 MethodDescriptor callerMD = tovisit.iterator().next();
83 tovisit.remove(callerMD);
85 Set<MethodDescriptor> calleeSet = caller2calleeSet.get(callerMD);
86 if (calleeSet != null) {
87 for (Iterator iterator = calleeSet.iterator(); iterator.hasNext();) {
88 MethodDescriptor calleeMD = (MethodDescriptor) iterator.next();
89 Pair p = new Pair(callerMD, calleeMD);
90 if (!visited.contains(p)) {
93 tovisit.add(calleeMD);
95 Set<MethodDescriptor> possibleCalleeSet =
96 (Set<MethodDescriptor>) ssjava.getCallGraph().getMethods(calleeMD);
98 for (Iterator iterator2 = possibleCalleeSet.iterator(); iterator2.hasNext();) {
99 MethodDescriptor possibleCallee = (MethodDescriptor) iterator2.next();
101 if (!possibleCallee.isAbstract()) {
102 ssjava.addAnnotationRequire(possibleCallee);
103 tovisit.add(possibleCallee);
115 public void methodAnnoataionInheritanceCheck() {
116 // check If a method is annotated, any method that overrides it should
119 Set<MethodDescriptor> tovisit = new HashSet<MethodDescriptor>();
120 tovisit.addAll(ssjava.getAnnotationRequireSet());
122 while (!tovisit.isEmpty()) {
123 MethodDescriptor md = tovisit.iterator().next();
126 ClassDescriptor cd = md.getClassDesc();
128 Set subClassSet = tu.getSubClasses(cd);
129 if (subClassSet != null) {
130 for (Iterator iterator2 = subClassSet.iterator(); iterator2.hasNext();) {
131 ClassDescriptor subCD = (ClassDescriptor) iterator2.next();
132 Set possiblematches = subCD.getMethodTable().getSet(md.getSymbol());
133 for (Iterator methodit = possiblematches.iterator(); methodit.hasNext();) {
134 MethodDescriptor matchmd = (MethodDescriptor) methodit.next();
135 if (md.matches(matchmd)) {
136 if (matchmd.getClassDesc().equals(subCD)) {
137 ssjava.addAnnotationRequire(matchmd);
144 // need to check super classess if the current method is inherited from
145 // them, all of ancestor method should be annoated
146 ClassDescriptor currentCd = cd;
147 ClassDescriptor superCd = tu.getSuper(currentCd);
148 while (!superCd.getSymbol().equals("Object")) {
149 Set possiblematches = superCd.getMethodTable().getSet(md.getSymbol());
150 for (Iterator methodit = possiblematches.iterator(); methodit.hasNext();) {
151 MethodDescriptor matchmd = (MethodDescriptor) methodit.next();
152 if (md.matches(matchmd)) {
153 ssjava.addAnnotationRequire(matchmd);
157 superCd = tu.getSuper(currentCd);
160 Set<ClassDescriptor> superIFSet = tu.getSuperIFs(cd);
161 for (Iterator iterator = superIFSet.iterator(); iterator.hasNext();) {
162 ClassDescriptor parentInterface = (ClassDescriptor) iterator.next();
163 Set possiblematches = parentInterface.getMethodTable().getSet(md.getSymbol());
164 for (Iterator methodit = possiblematches.iterator(); methodit.hasNext();) {
165 MethodDescriptor matchmd = (MethodDescriptor) methodit.next();
166 if (md.matches(matchmd)) {
167 ssjava.addAnnotationRequire(matchmd);
176 private void checkMethodBody(ClassDescriptor cd, MethodDescriptor md) {
177 BlockNode bn = state.getMethodBody(md);
178 checkBlockNode(md, md.getParameterTable(), bn, false);
181 private void checkBlockNode(MethodDescriptor md, SymbolTable nametable, BlockNode bn, boolean flag) {
182 bn.getVarTable().setParent(nametable);
183 String label = bn.getLabel();
184 boolean isSSJavaLoop = flag;
185 if (label != null && label.equals(ssjava.SSJAVA)) {
187 throw new Error("Only outermost loop can be the self-stabilizing loop.");
189 annotatedMDSet.add(md);
194 for (int i = 0; i < bn.size(); i++) {
195 BlockStatementNode bsn = bn.get(i);
196 checkBlockStatementNode(md, bn.getVarTable(), bsn, isSSJavaLoop);
201 private void checkBlockStatementNode(MethodDescriptor md, SymbolTable nametable,
202 BlockStatementNode bsn, boolean flag) {
204 switch (bsn.kind()) {
205 case Kind.SubBlockNode:
206 checkSubBlockNode(md, nametable, (SubBlockNode) bsn, flag);
209 case Kind.BlockExpressionNode:
210 checkBlockExpressionNode(md, nametable, (BlockExpressionNode) bsn, flag);
213 case Kind.DeclarationNode:
214 checkDeclarationNode(md, nametable, (DeclarationNode) bsn, flag);
217 case Kind.IfStatementNode:
218 checkIfStatementNode(md, nametable, (IfStatementNode) bsn, flag);
222 checkLoopNode(md, nametable, (LoopNode) bsn, flag);
225 case Kind.ReturnNode:
226 checkReturnNode(md, nametable, (ReturnNode) bsn, flag);
232 private void checkDeclarationNode(MethodDescriptor md, SymbolTable nametable, DeclarationNode dn,
234 if (dn.getExpression() != null) {
235 checkExpressionNode(md, nametable, dn.getExpression(), flag);
239 private void checkReturnNode(MethodDescriptor md, SymbolTable nametable, ReturnNode rn,
241 if (rn.getReturnExpression() != null) {
242 if (md.getReturnType() != null) {
243 checkExpressionNode(md, nametable, rn.getReturnExpression(), flag);
248 private void checkLoopNode(MethodDescriptor md, SymbolTable nametable, LoopNode ln, boolean flag) {
249 if (ln.getType() == LoopNode.WHILELOOP || ln.getType() == LoopNode.DOWHILELOOP) {
250 checkExpressionNode(md, nametable, ln.getCondition(), flag);
251 checkBlockNode(md, nametable, ln.getBody(), flag);
254 /* Link in the initializer naming environment */
255 BlockNode bn = ln.getInitializer();
256 bn.getVarTable().setParent(nametable);
257 for (int i = 0; i < bn.size(); i++) {
258 BlockStatementNode bsn = bn.get(i);
259 checkBlockStatementNode(md, bn.getVarTable(), bsn, flag);
261 // check the condition
262 checkExpressionNode(md, bn.getVarTable(), ln.getCondition(), flag);
263 checkBlockNode(md, bn.getVarTable(), ln.getBody(), flag);
264 checkBlockNode(md, bn.getVarTable(), ln.getUpdate(), flag);
268 private void checkIfStatementNode(MethodDescriptor md, SymbolTable nametable,
269 IfStatementNode isn, boolean flag) {
270 checkExpressionNode(md, nametable, isn.getCondition(), flag);
271 checkBlockNode(md, nametable, isn.getTrueBlock(), flag);
272 if (isn.getFalseBlock() != null) {
273 checkBlockNode(md, nametable, isn.getFalseBlock(), flag);
277 private void checkSubBlockNode(MethodDescriptor md, SymbolTable nametable, SubBlockNode sbn,
279 checkBlockNode(md, nametable.getParent(), sbn.getBlockNode(), flag);
282 private void checkBlockExpressionNode(MethodDescriptor md, SymbolTable nametable,
283 BlockExpressionNode ben, boolean flag) {
284 checkExpressionNode(md, nametable, ben.getExpression(), flag);
287 private void checkExpressionNode(MethodDescriptor md, SymbolTable nametable, ExpressionNode en,
290 case Kind.AssignmentNode:
291 checkAssignmentNode(md, nametable, (AssignmentNode) en, flag);
295 checkCastNode(md, nametable, (CastNode) en, flag);
298 case Kind.CreateObjectNode:
299 checkCreateObjectNode(md, nametable, (CreateObjectNode) en, flag);
302 case Kind.FieldAccessNode:
303 checkFieldAccessNode(md, nametable, (FieldAccessNode) en, flag);
306 case Kind.ArrayAccessNode:
307 checkArrayAccessNode(md, nametable, (ArrayAccessNode) en, flag);
310 // case Kind.LiteralNode:
311 // checkLiteralNode(md, nametable, (LiteralNode) en, flag);
314 case Kind.MethodInvokeNode:
315 checkMethodInvokeNode(md, nametable, (MethodInvokeNode) en, flag);
318 // case Kind.NameNode:
319 // checkNameNode(md, nametable, (NameNode) en, flag);
323 checkOpNode(md, nametable, (OpNode) en, flag);
326 // case Kind.OffsetNode:
327 // checkOffsetNode(md, nametable, (OffsetNode) en, flag);
330 case Kind.TertiaryNode:
331 checkTertiaryNode(md, nametable, (TertiaryNode) en, flag);
334 case Kind.InstanceOfNode:
335 checkInstanceOfNode(md, nametable, (InstanceOfNode) en, flag);
338 case Kind.ArrayInitializerNode:
339 checkArrayInitializerNode(md, nametable, (ArrayInitializerNode) en, flag);
342 // case Kind.ClassTypeNode:
343 // checkClassTypeNode(md, nametable, (ClassTypeNode) en, flag);
348 private void checkArrayInitializerNode(MethodDescriptor md, SymbolTable nametable,
349 ArrayInitializerNode ain, boolean flag) {
351 for (int i = 0; i < ain.numVarInitializers(); ++i) {
352 checkExpressionNode(md, nametable, ain.getVarInitializer(i), flag);
357 private void checkInstanceOfNode(MethodDescriptor md, SymbolTable nametable, InstanceOfNode tn,
359 checkExpressionNode(md, nametable, tn.getExpr(), flag);
362 private void checkTertiaryNode(MethodDescriptor md, SymbolTable nametable, TertiaryNode tn,
364 checkExpressionNode(md, nametable, tn.getCond(), flag);
365 checkExpressionNode(md, nametable, tn.getTrueExpr(), flag);
366 checkExpressionNode(md, nametable, tn.getFalseExpr(), flag);
369 private void checkOpNode(MethodDescriptor md, SymbolTable nametable, OpNode on, boolean flag) {
371 checkExpressionNode(md, nametable, on.getLeft(), flag);
372 if (on.getRight() != null) {
373 checkExpressionNode(md, nametable, on.getRight(), flag);
378 private void checkMethodInvokeNode(MethodDescriptor md, SymbolTable nametable,
379 MethodInvokeNode min, boolean flag) {
380 for (int i = 0; i < min.numArgs(); i++) {
381 ExpressionNode en = min.getArg(i);
382 checkExpressionNode(md, nametable, en, flag);
385 if (min.getExpression() != null) {
386 checkExpressionNode(md, nametable, min.getExpression(), flag);
390 annotatedMDSet.add(min.getMethod());
393 Set<MethodDescriptor> mdSet = caller2calleeSet.get(md);
395 mdSet = new HashSet<MethodDescriptor>();
396 caller2calleeSet.put(md, mdSet);
398 mdSet.add(min.getMethod());
402 private void checkArrayAccessNode(MethodDescriptor md, SymbolTable nametable,
403 ArrayAccessNode aan, boolean flag) {
405 ExpressionNode left = aan.getExpression();
406 checkExpressionNode(md, nametable, left, flag);
407 checkExpressionNode(md, nametable, aan.getIndex(), flag);
411 private void checkFieldAccessNode(MethodDescriptor md, SymbolTable nametable,
412 FieldAccessNode fan, boolean flag) {
413 ExpressionNode left = fan.getExpression();
414 checkExpressionNode(md, nametable, left, flag);
417 private void checkCreateObjectNode(MethodDescriptor md, SymbolTable nametable,
418 CreateObjectNode con, boolean flag) {
420 for (int i = 0; i < con.numArgs(); i++) {
421 ExpressionNode en = con.getArg(i);
422 checkExpressionNode(md, nametable, en, flag);
427 private void checkCastNode(MethodDescriptor md, SymbolTable nametable, CastNode cn, boolean flag) {
428 ExpressionNode en = cn.getExpression();
429 checkExpressionNode(md, nametable, en, flag);
432 private void checkAssignmentNode(MethodDescriptor md, SymbolTable nametable, AssignmentNode an,
434 boolean postinc = true;
436 if (an.getOperation().getBaseOp() == null
437 || (an.getOperation().getBaseOp().getOp() != Operation.POSTINC && an.getOperation()
438 .getBaseOp().getOp() != Operation.POSTDEC))
442 checkExpressionNode(md, nametable, an.getSrc(), flag);
445 checkExpressionNode(md, nametable, an.getDest(), flag);