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;
62 if (!cd.isInterface()) {
63 for (Iterator method_it = cd.getMethods(); method_it.hasNext();) {
64 MethodDescriptor md = (MethodDescriptor) method_it.next();
65 checkMethodBody(cd, md);
70 for (Iterator iterator = annotatedMDSet.iterator(); iterator.hasNext();) {
71 MethodDescriptor md = (MethodDescriptor) iterator.next();
72 ssjava.putHasAnnotation(md);
75 Set<Pair> visited = new HashSet<Pair>();
76 Set<MethodDescriptor> tovisit = new HashSet<MethodDescriptor>();
77 tovisit.addAll(annotatedMDSet);
79 while (!tovisit.isEmpty()) {
80 MethodDescriptor callerMD = tovisit.iterator().next();
81 tovisit.remove(callerMD);
82 Set<MethodDescriptor> calleeSet = caller2calleeSet.get(callerMD);
83 if (calleeSet != null) {
84 for (Iterator iterator = calleeSet.iterator(); iterator.hasNext();) {
85 MethodDescriptor calleeMD = (MethodDescriptor) iterator.next();
86 Pair p = new Pair(callerMD, calleeMD);
87 if (!visited.contains(p)) {
89 tovisit.add(calleeMD);
90 ssjava.putHasAnnotation(calleeMD);
98 public void methodAnnoataionInheritanceCheck() {
99 // check If a method is annotated, any method that overrides it should
102 Set<MethodDescriptor> tovisit = new HashSet<MethodDescriptor>();
103 tovisit.addAll(ssjava.getMd2hasAnnotation().keySet());
105 while (!tovisit.isEmpty()) {
106 MethodDescriptor md = tovisit.iterator().next();
109 ClassDescriptor cd = md.getClassDesc();
111 Set subClassSet = tu.getSubClasses(cd);
112 if (subClassSet != null) {
113 for (Iterator iterator2 = subClassSet.iterator(); iterator2.hasNext();) {
114 ClassDescriptor subCD = (ClassDescriptor) iterator2.next();
115 Set possiblematches = subCD.getMethodTable().getSet(md.getSymbol());
116 for (Iterator methodit = possiblematches.iterator(); methodit.hasNext();) {
117 MethodDescriptor matchmd = (MethodDescriptor) methodit.next();
118 if (md.matches(matchmd)) {
119 if (matchmd.getClassDesc().equals(subCD)) {
120 ssjava.putHasAnnotation(matchmd);
130 private void checkMethodBody(ClassDescriptor cd, MethodDescriptor md) {
131 BlockNode bn = state.getMethodBody(md);
132 checkBlockNode(md, md.getParameterTable(), bn, false);
135 private void checkBlockNode(MethodDescriptor md, SymbolTable nametable, BlockNode bn, boolean flag) {
136 bn.getVarTable().setParent(nametable);
137 String label = bn.getLabel();
138 boolean isSSJavaLoop = flag;
139 if (label != null && label.equals(ssjava.SSJAVA)) {
141 throw new Error("Only outermost loop can be the self-stabilizing loop.");
143 annotatedMDSet.add(md);
148 for (int i = 0; i < bn.size(); i++) {
149 BlockStatementNode bsn = bn.get(i);
150 checkBlockStatementNode(md, bn.getVarTable(), bsn, isSSJavaLoop);
155 private void checkBlockStatementNode(MethodDescriptor md, SymbolTable nametable,
156 BlockStatementNode bsn, boolean flag) {
158 switch (bsn.kind()) {
159 case Kind.SubBlockNode:
160 checkSubBlockNode(md, nametable, (SubBlockNode) bsn, flag);
163 case Kind.BlockExpressionNode:
164 checkBlockExpressionNode(md, nametable, (BlockExpressionNode) bsn, flag);
167 case Kind.DeclarationNode:
168 // checkLocationFromDeclarationNode(md, nametable, (DeclarationNode) bsn);
171 case Kind.IfStatementNode:
172 checkIfStatementNode(md, nametable, (IfStatementNode) bsn, flag);
176 checkLoopNode(md, nametable, (LoopNode) bsn, flag);
179 case Kind.ReturnNode:
180 checkReturnNode(md, nametable, (ReturnNode) bsn, flag);
186 void checkDeclarationNode(MethodDescriptor md, SymbolTable nametable, DeclarationNode dn,
188 if (dn.getExpression() != null) {
189 checkExpressionNode(md, nametable, dn.getExpression(), flag);
193 void checkReturnNode(MethodDescriptor md, SymbolTable nametable, ReturnNode rn, boolean flag) {
194 if (rn.getReturnExpression() != null) {
195 if (md.getReturnType() != null) {
196 checkExpressionNode(md, nametable, rn.getReturnExpression(), flag);
201 void checkLoopNode(MethodDescriptor md, SymbolTable nametable, LoopNode ln, boolean flag) {
202 if (ln.getType() == LoopNode.WHILELOOP || ln.getType() == LoopNode.DOWHILELOOP) {
203 checkExpressionNode(md, nametable, ln.getCondition(), flag);
204 checkBlockNode(md, nametable, ln.getBody(), flag);
207 /* Link in the initializer naming environment */
208 BlockNode bn = ln.getInitializer();
209 bn.getVarTable().setParent(nametable);
210 for (int i = 0; i < bn.size(); i++) {
211 BlockStatementNode bsn = bn.get(i);
212 checkBlockStatementNode(md, bn.getVarTable(), bsn, flag);
214 // check the condition
215 checkExpressionNode(md, bn.getVarTable(), ln.getCondition(), flag);
216 checkBlockNode(md, bn.getVarTable(), ln.getBody(), flag);
217 checkBlockNode(md, bn.getVarTable(), ln.getUpdate(), flag);
221 void checkIfStatementNode(MethodDescriptor md, SymbolTable nametable, IfStatementNode isn,
223 checkExpressionNode(md, nametable, isn.getCondition(), flag);
224 checkBlockNode(md, nametable, isn.getTrueBlock(), flag);
225 if (isn.getFalseBlock() != null) {
226 checkBlockNode(md, nametable, isn.getFalseBlock(), flag);
230 private void checkSubBlockNode(MethodDescriptor md, SymbolTable nametable, SubBlockNode sbn,
232 checkBlockNode(md, nametable.getParent(), sbn.getBlockNode(), flag);
235 private void checkBlockExpressionNode(MethodDescriptor md, SymbolTable nametable,
236 BlockExpressionNode ben, boolean flag) {
237 checkExpressionNode(md, nametable, ben.getExpression(), flag);
240 private void checkExpressionNode(MethodDescriptor md, SymbolTable nametable, ExpressionNode en,
243 case Kind.AssignmentNode:
244 checkAssignmentNode(md, nametable, (AssignmentNode) en, flag);
248 checkCastNode(md, nametable, (CastNode) en, flag);
251 case Kind.CreateObjectNode:
252 checkCreateObjectNode(md, nametable, (CreateObjectNode) en, flag);
255 case Kind.FieldAccessNode:
256 checkFieldAccessNode(md, nametable, (FieldAccessNode) en, flag);
259 case Kind.ArrayAccessNode:
260 checkArrayAccessNode(md, nametable, (ArrayAccessNode) en, flag);
263 // case Kind.LiteralNode:
264 // checkLiteralNode(md, nametable, (LiteralNode) en, flag);
267 case Kind.MethodInvokeNode:
268 checkMethodInvokeNode(md, nametable, (MethodInvokeNode) en, flag);
271 // case Kind.NameNode:
272 // checkNameNode(md, nametable, (NameNode) en, flag);
276 checkOpNode(md, nametable, (OpNode) en, flag);
279 // case Kind.OffsetNode:
280 // checkOffsetNode(md, nametable, (OffsetNode) en, flag);
283 case Kind.TertiaryNode:
284 checkTertiaryNode(md, nametable, (TertiaryNode) en, flag);
287 case Kind.InstanceOfNode:
288 checkInstanceOfNode(md, nametable, (InstanceOfNode) en, flag);
291 case Kind.ArrayInitializerNode:
292 checkArrayInitializerNode(md, nametable, (ArrayInitializerNode) en, flag);
295 // case Kind.ClassTypeNode:
296 // checkClassTypeNode(md, nametable, (ClassTypeNode) en, flag);
301 private void checkArrayInitializerNode(MethodDescriptor md, SymbolTable nametable,
302 ArrayInitializerNode ain, boolean flag) {
304 for (int i = 0; i < ain.numVarInitializers(); ++i) {
305 checkExpressionNode(md, nametable, ain.getVarInitializer(i), flag);
310 private void checkInstanceOfNode(MethodDescriptor md, SymbolTable nametable, InstanceOfNode tn,
312 checkExpressionNode(md, nametable, tn.getExpr(), flag);
315 private void checkTertiaryNode(MethodDescriptor md, SymbolTable nametable, TertiaryNode tn,
317 checkExpressionNode(md, nametable, tn.getCond(), flag);
318 checkExpressionNode(md, nametable, tn.getTrueExpr(), flag);
319 checkExpressionNode(md, nametable, tn.getFalseExpr(), flag);
322 private void checkOpNode(MethodDescriptor md, SymbolTable nametable, OpNode on, boolean flag) {
324 checkExpressionNode(md, nametable, on.getLeft(), flag);
325 if (on.getRight() != null) {
326 checkExpressionNode(md, nametable, on.getRight(), flag);
331 private void checkMethodInvokeNode(MethodDescriptor md, SymbolTable nametable,
332 MethodInvokeNode min, boolean flag) {
333 for (int i = 0; i < min.numArgs(); i++) {
334 ExpressionNode en = min.getArg(i);
335 checkExpressionNode(md, nametable, en, flag);
338 if (min.getExpression() != null) {
339 checkExpressionNode(md, nametable, min.getExpression(), flag);
343 annotatedMDSet.add(min.getMethod());
346 Set<MethodDescriptor> mdSet = caller2calleeSet.get(md);
348 mdSet = new HashSet<MethodDescriptor>();
349 caller2calleeSet.put(md, mdSet);
351 mdSet.add(min.getMethod());
355 private void checkArrayAccessNode(MethodDescriptor md, SymbolTable nametable,
356 ArrayAccessNode aan, boolean flag) {
358 ExpressionNode left = aan.getExpression();
359 checkExpressionNode(md, nametable, left, flag);
360 checkExpressionNode(md, nametable, aan.getIndex(), flag);
364 private void checkFieldAccessNode(MethodDescriptor md, SymbolTable nametable,
365 FieldAccessNode fan, boolean flag) {
366 ExpressionNode left = fan.getExpression();
367 checkExpressionNode(md, nametable, left, flag);
370 private void checkCreateObjectNode(MethodDescriptor md, SymbolTable nametable,
371 CreateObjectNode con, boolean flag) {
373 for (int i = 0; i < con.numArgs(); i++) {
374 ExpressionNode en = con.getArg(i);
375 checkExpressionNode(md, nametable, en, flag);
380 private void checkCastNode(MethodDescriptor md, SymbolTable nametable, CastNode cn, boolean flag) {
381 ExpressionNode en = cn.getExpression();
382 checkExpressionNode(md, nametable, en, flag);
385 private void checkAssignmentNode(MethodDescriptor md, SymbolTable nametable, AssignmentNode an,
387 boolean postinc = true;
389 if (an.getOperation().getBaseOp() == null
390 || (an.getOperation().getBaseOp().getOp() != Operation.POSTINC && an.getOperation()
391 .getBaseOp().getOp() != Operation.POSTDEC))
395 checkExpressionNode(md, nametable, an.getSrc(), flag);
398 checkExpressionNode(md, nametable, an.getDest(), flag);