9 private int m_taskexitnum;
11 public BuildIR(State state) {
13 this.m_taskexitnum = 0;
16 public void buildtree(ParseNode pn, Set toanalyze) {
17 parseFile(pn, toanalyze);
22 NameDescriptor packages;
24 /** Parse the classes in this file */
25 public void parseFile(ParseNode pn, Set toanalyze) {
26 singleimports=new Vector();
27 multiimports=new Vector();
29 ParseNode ipn=pn.getChild("imports").getChild("import_decls_list");
31 ParseNodeVector pnv=ipn.getChildren();
32 for(int i=0; i<pnv.size(); i++) {
33 ParseNode pnimport=pnv.elementAt(i);
34 NameDescriptor nd=parseName(pnimport.getChild("name"));
35 if (isNode(pnimport,"import_single"))
36 singleimports.add(nd);
41 ParseNode ppn=pn.getChild("packages").getChild("package");
43 packages=parseName(pn.getChild("name"));
45 ParseNode tpn=pn.getChild("type_declaration_list");
47 ParseNodeVector pnv=tpn.getChildren();
48 for(int i=0; i<pnv.size(); i++) {
49 ParseNode type_pn=pnv.elementAt(i);
50 if (isEmpty(type_pn)) /* Skip the semicolon */
52 if (isNode(type_pn,"class_declaration")) {
53 ClassDescriptor cn=parseTypeDecl(type_pn);
57 } else if (isNode(type_pn,"task_declaration")) {
58 TaskDescriptor td=parseTaskDecl(type_pn);
63 throw new Error(type_pn.getLabel());
69 public TaskDescriptor parseTaskDecl(ParseNode pn) {
70 TaskDescriptor td=new TaskDescriptor(pn.getChild("name").getTerminal());
71 ParseNode bodyn=pn.getChild("body");
72 BlockNode bn=parseBlock(bodyn);
73 parseParameterList(td, pn);
74 state.addTreeCode(td,bn);
75 if (pn.getChild("flag_effects_list")!=null)
76 td.addFlagEffects(parseFlags(pn.getChild("flag_effects_list")));
80 public Vector parseFlags(ParseNode pn) {
81 Vector vfe=new Vector();
82 ParseNodeVector pnv=pn.getChildren();
83 for(int i=0; i<pnv.size(); i++) {
84 ParseNode fn=pnv.elementAt(i);
85 FlagEffects fe=parseFlagEffects(fn);
91 public FlagEffects parseFlagEffects(ParseNode pn) {
92 if (isNode(pn,"flag_effect")) {
93 String flagname=pn.getChild("name").getTerminal();
94 FlagEffects fe=new FlagEffects(flagname);
95 if (pn.getChild("flag_list")!=null)
96 parseFlagEffect(fe, pn.getChild("flag_list"));
97 if (pn.getChild("tag_list")!=null)
98 parseTagEffect(fe, pn.getChild("tag_list"));
100 } else throw new Error();
103 public void parseTagEffect(FlagEffects fes, ParseNode pn) {
104 ParseNodeVector pnv=pn.getChildren();
105 for(int i=0; i<pnv.size(); i++) {
106 ParseNode pn2=pnv.elementAt(i);
108 if (isNode(pn2,"not")) {
110 pn2=pn2.getChild("name");
112 String name=pn2.getTerminal();
113 fes.addTagEffect(new TagEffect(name,status));
117 public void parseFlagEffect(FlagEffects fes, ParseNode pn) {
118 ParseNodeVector pnv=pn.getChildren();
119 for(int i=0; i<pnv.size(); i++) {
120 ParseNode pn2=pnv.elementAt(i);
122 if (isNode(pn2,"not")) {
124 pn2=pn2.getChild("name");
126 String name=pn2.getTerminal();
127 fes.addEffect(new FlagEffect(name,status));
131 public FlagExpressionNode parseFlagExpression(ParseNode pn) {
132 if (isNode(pn,"or")) {
133 ParseNodeVector pnv=pn.getChildren();
134 ParseNode left=pnv.elementAt(0);
135 ParseNode right=pnv.elementAt(1);
136 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_OR));
137 } else if (isNode(pn,"and")) {
138 ParseNodeVector pnv=pn.getChildren();
139 ParseNode left=pnv.elementAt(0);
140 ParseNode right=pnv.elementAt(1);
141 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_AND));
142 } else if (isNode(pn, "not")) {
143 ParseNodeVector pnv=pn.getChildren();
144 ParseNode left=pnv.elementAt(0);
145 return new FlagOpNode(parseFlagExpression(left), new Operation(Operation.LOGIC_NOT));
147 } else if (isNode(pn,"name")) {
148 return new FlagNode(pn.getTerminal());
154 public Vector parseChecks(ParseNode pn) {
155 Vector ccs=new Vector();
156 ParseNodeVector pnv=pn.getChildren();
157 for(int i=0; i<pnv.size(); i++) {
158 ParseNode fn=pnv.elementAt(i);
159 ConstraintCheck cc=parseConstraintCheck(fn);
165 public ConstraintCheck parseConstraintCheck(ParseNode pn) {
166 if (isNode(pn,"cons_check")) {
167 String specname=pn.getChild("name").getChild("identifier").getTerminal();
168 Vector[] args=parseConsArgumentList(pn);
169 ConstraintCheck cc=new ConstraintCheck(specname);
170 for(int i=0; i<args[0].size(); i++) {
171 cc.addVariable((String)args[0].get(i));
172 cc.addArgument((ExpressionNode)args[1].get(i));
175 } else throw new Error();
178 public void parseParameterList(TaskDescriptor td, ParseNode pn) {
181 ParseNode paramlist=pn.getChild("task_parameter_list");
184 ParseNodeVector pnv=paramlist.getChildren();
185 for(int i=0; i<pnv.size(); i++) {
186 ParseNode paramn=pnv.elementAt(i);
187 if(paramn.getChild("optional")!=null) {
189 paramn = paramn.getChild("optional").getFirstChild();
190 System.out.println("OPTIONAL FOUND!!!!!!!");
191 } else { optional = false;
192 System.out.println("NOT OPTIONAL");}
194 TypeDescriptor type=parseTypeDescriptor(paramn);
196 String paramname=paramn.getChild("single").getTerminal();
197 FlagExpressionNode fen=null;
198 if (paramn.getChild("flag")!=null)
199 fen=parseFlagExpression(paramn.getChild("flag").getFirstChild());
201 ParseNode tagnode=paramn.getChild("tag");
203 TagExpressionList tel=null;
205 tel=parseTagExpressionList(tagnode);
208 td.addParameter(type,paramname,fen, tel, optional);
212 public TagExpressionList parseTagExpressionList(ParseNode pn) {
213 //BUG FIX: change pn.getChildren() to pn.getChild("tag_expression_list").getChildren()
214 //To test, feed in any input program that uses tags
215 ParseNodeVector pnv=pn.getChild("tag_expression_list").getChildren();
216 TagExpressionList tel=new TagExpressionList();
217 for(int i=0; i<pnv.size(); i++) {
218 ParseNode tn=pnv.elementAt(i);
219 String type=tn.getChild("type").getTerminal();
220 String name=tn.getChild("single").getTerminal();
221 tel.addTag(type, name);
226 public ClassDescriptor parseTypeDecl(ParseNode pn) {
227 ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal());
228 if (!isEmpty(pn.getChild("super").getTerminal())) {
229 /* parse superclass name */
230 ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
231 NameDescriptor nd=parseName(snn);
232 cn.setSuper(nd.toString());
234 if (!(cn.getSymbol().equals(TypeUtil.ObjectClass)||
235 cn.getSymbol().equals(TypeUtil.TagClass)))
236 cn.setSuper(TypeUtil.ObjectClass);
238 cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
239 parseClassBody(cn, pn.getChild("classbody"));
243 private void parseClassBody(ClassDescriptor cn, ParseNode pn) {
244 ParseNode decls=pn.getChild("class_body_declaration_list");
246 ParseNodeVector pnv=decls.getChildren();
247 for(int i=0; i<pnv.size(); i++) {
248 ParseNode decl=pnv.elementAt(i);
249 if (isNode(decl,"member")) {
250 parseClassMember(cn,decl);
251 } else if (isNode(decl,"constructor")) {
252 parseConstructorDecl(cn,decl.getChild("constructor_declaration"));
253 } else if (isNode(decl,"block")) {
254 } else throw new Error();
259 private void parseClassMember(ClassDescriptor cn, ParseNode pn) {
260 ParseNode fieldnode=pn.getChild("field");
262 if (fieldnode!=null) {
263 parseFieldDecl(cn,fieldnode.getChild("field_declaration"));
266 ParseNode methodnode=pn.getChild("method");
267 if (methodnode!=null) {
268 parseMethodDecl(cn,methodnode.getChild("method_declaration"));
271 ParseNode flagnode=pn.getChild("flag");
272 if (flagnode!=null) {
273 parseFlagDecl(cn, flagnode.getChild("flag_declaration"));
279 private TypeDescriptor parseTypeDescriptor(ParseNode pn) {
280 ParseNode tn=pn.getChild("type");
281 String type_st=tn.getTerminal();
282 if(type_st.equals("byte")) {
283 return state.getTypeDescriptor(TypeDescriptor.BYTE);
284 } else if(type_st.equals("short")) {
285 return state.getTypeDescriptor(TypeDescriptor.SHORT);
286 } else if(type_st.equals("boolean")) {
287 return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
288 } else if(type_st.equals("int")) {
289 return state.getTypeDescriptor(TypeDescriptor.INT);
290 } else if(type_st.equals("long")) {
291 return state.getTypeDescriptor(TypeDescriptor.LONG);
292 } else if(type_st.equals("char")) {
293 return state.getTypeDescriptor(TypeDescriptor.CHAR);
294 } else if(type_st.equals("float")) {
295 return state.getTypeDescriptor(TypeDescriptor.FLOAT);
296 } else if(type_st.equals("double")) {
297 return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
298 } else if(type_st.equals("class")) {
299 ParseNode nn=tn.getChild("class");
300 return state.getTypeDescriptor(parseName(nn.getChild("name")));
301 } else if(type_st.equals("array")) {
302 ParseNode nn=tn.getChild("array");
303 TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
304 Integer numdims=(Integer)nn.getChild("dims").getLiteral();
305 for(int i=0; i<numdims.intValue(); i++)
306 td=td.makeArray(state);
313 private NameDescriptor parseName(ParseNode nn) {
314 ParseNode base=nn.getChild("base");
315 ParseNode id=nn.getChild("identifier");
317 return new NameDescriptor(id.getTerminal());
318 return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
322 private void parseFlagDecl(ClassDescriptor cn,ParseNode pn) {
323 String name=pn.getChild("name").getTerminal();
324 FlagDescriptor flag=new FlagDescriptor(name);
325 if (pn.getChild("external")!=null)
330 private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
331 ParseNode mn=pn.getChild("modifier");
332 Modifiers m=parseModifiersList(mn);
334 ParseNode tn=pn.getChild("type");
335 TypeDescriptor t=parseTypeDescriptor(tn);
336 ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
337 ParseNodeVector pnv=vn.getChildren();
338 boolean isglobal=pn.getChild("global")!=null;
340 for(int i=0; i<pnv.size(); i++) {
341 ParseNode vardecl=pnv.elementAt(i);
342 ParseNode tmp=vardecl;
343 TypeDescriptor arrayt=t;
344 while (tmp.getChild("single")==null) {
345 arrayt=arrayt.makeArray(state);
346 tmp=tmp.getChild("array");
348 String identifier=tmp.getChild("single").getTerminal();
349 ParseNode epn=vardecl.getChild("initializer");
351 ExpressionNode en=null;
353 en=parseExpression(epn.getFirstChild());
355 cn.addField(new FieldDescriptor(m, arrayt, identifier, en, isglobal));
359 private ExpressionNode parseExpression(ParseNode pn) {
360 if (isNode(pn,"assignment"))
361 return parseAssignmentExpression(pn);
362 else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
363 isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
364 isNode(pn,"bitwise_and")||isNode(pn,"equal")||
365 isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
366 isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
367 isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
368 isNode(pn,"rightshift")||isNode(pn,"sub")||
369 isNode(pn,"urightshift")||isNode(pn,"sub")||
370 isNode(pn,"add")||isNode(pn,"mult")||
371 isNode(pn,"div")||isNode(pn,"mod")) {
372 ParseNodeVector pnv=pn.getChildren();
373 ParseNode left=pnv.elementAt(0);
374 ParseNode right=pnv.elementAt(1);
375 Operation op=new Operation(pn.getLabel());
376 return new OpNode(parseExpression(left),parseExpression(right),op);
377 } else if (isNode(pn,"unaryplus")||
378 isNode(pn,"unaryminus")||
381 ParseNode left=pn.getFirstChild();
382 Operation op=new Operation(pn.getLabel());
383 return new OpNode(parseExpression(left),op);
384 } else if (isNode(pn,"postinc")||
385 isNode(pn,"postdec")) {
386 ParseNode left=pn.getFirstChild();
387 AssignOperation op=new AssignOperation(pn.getLabel());
388 return new AssignmentNode(parseExpression(left),null,op);
390 } else if (isNode(pn,"preinc")||
391 isNode(pn,"predec")) {
392 ParseNode left=pn.getFirstChild();
393 AssignOperation op=isNode(pn,"preinc") ? new AssignOperation(AssignOperation.PLUSEQ) : new AssignOperation(AssignOperation.MINUSEQ);
394 return new AssignmentNode(parseExpression(left),
395 new LiteralNode("integer",new Integer(1)),op);
396 } else if (isNode(pn,"literal")) {
397 String literaltype=pn.getTerminal();
398 ParseNode literalnode=pn.getChild(literaltype);
399 Object literal_obj=literalnode.getLiteral();
400 return new LiteralNode(literaltype, literal_obj);
401 } else if (isNode(pn,"createobject")) {
402 TypeDescriptor td=parseTypeDescriptor(pn);
404 Vector args=parseArgumentList(pn);
405 boolean isglobal=pn.getChild("global")!=null;
406 String disjointId=null;
407 if( pn.getChild("disjoint") != null) {
408 disjointId = pn.getChild("disjoint").getTerminal();
410 CreateObjectNode con=new CreateObjectNode(td, isglobal, disjointId);
411 for(int i=0; i<args.size(); i++) {
412 con.addArgument((ExpressionNode)args.get(i));
414 /* Could have flag set or tag added here */
415 if (pn.getChild("flag_list")!=null||pn.getChild("tag_list")!=null) {
416 FlagEffects fe=new FlagEffects(null);
417 if (pn.getChild("flag_list")!=null)
418 parseFlagEffect(fe, pn.getChild("flag_list"));
420 if (pn.getChild("tag_list")!=null)
421 parseTagEffect(fe, pn.getChild("tag_list"));
422 con.addFlagEffects(fe);
426 } else if (isNode(pn,"createarray")) {
427 //System.out.println(pn.PPrint(3,true));
428 boolean isglobal=pn.getChild("global")!=null;
429 String disjointId=null;
430 if( pn.getChild("disjoint") != null) {
431 disjointId = pn.getChild("disjoint").getTerminal();
433 TypeDescriptor td=parseTypeDescriptor(pn);
434 Vector args=parseDimExprs(pn);
436 if (pn.getChild("dims_opt").getLiteral()!=null)
437 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
438 for(int i=0; i<(args.size()+num); i++)
439 td=td.makeArray(state);
440 CreateObjectNode con=new CreateObjectNode(td, isglobal, disjointId);
441 for(int i=0; i<args.size(); i++) {
442 con.addArgument((ExpressionNode)args.get(i));
445 } else if (isNode(pn,"name")) {
446 NameDescriptor nd=parseName(pn);
447 return new NameNode(nd);
448 } else if (isNode(pn,"this")) {
449 NameDescriptor nd=new NameDescriptor("this");
450 return new NameNode(nd);
451 } else if (isNode(pn,"isavailable")) {
452 NameDescriptor nd=new NameDescriptor(pn.getTerminal());
453 return new OpNode(new NameNode(nd),null,new Operation(Operation.ISAVAILABLE));
454 } else if (isNode(pn,"methodinvoke1")) {
455 NameDescriptor nd=parseName(pn.getChild("name"));
456 Vector args=parseArgumentList(pn);
457 MethodInvokeNode min=new MethodInvokeNode(nd);
458 for(int i=0; i<args.size(); i++) {
459 min.addArgument((ExpressionNode)args.get(i));
462 } else if (isNode(pn,"methodinvoke2")) {
463 String methodid=pn.getChild("id").getTerminal();
464 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
465 Vector args=parseArgumentList(pn);
466 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
467 for(int i=0; i<args.size(); i++) {
468 min.addArgument((ExpressionNode)args.get(i));
471 } else if (isNode(pn,"fieldaccess")) {
472 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
473 String fieldname=pn.getChild("field").getTerminal();
474 return new FieldAccessNode(en,fieldname);
475 } else if (isNode(pn,"arrayaccess")) {
476 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
477 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
478 return new ArrayAccessNode(en,index);
479 } else if (isNode(pn,"cast1")) {
480 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
481 } else if (isNode(pn,"cast2")) {
482 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
483 } else if (isNode(pn, "getoffset")) {
484 TypeDescriptor td=parseTypeDescriptor(pn);
485 String fieldname = pn.getChild("field").getTerminal();
486 //System.out.println("Checking the values of: "+ " td.toString()= " + td.toString()+ " fieldname= " + fieldname);
487 return new OffsetNode(td, fieldname);
488 } else if (isNode(pn, "tert")) {
489 return new TertiaryNode(parseExpression(pn.getChild("cond").getFirstChild()),
490 parseExpression(pn.getChild("trueexpr").getFirstChild()),
491 parseExpression(pn.getChild("falseexpr").getFirstChild()) );
492 } else if (isNode(pn, "instanceof")) {
493 ExpressionNode exp=parseExpression(pn.getChild("exp").getFirstChild());
494 TypeDescriptor t=parseTypeDescriptor(pn);
495 return new InstanceOfNode(exp,t);
497 System.out.println("---------------------");
498 System.out.println(pn.PPrint(3,true));
503 private Vector parseDimExprs(ParseNode pn) {
504 Vector arglist=new Vector();
505 ParseNode an=pn.getChild("dim_exprs");
506 if (an==null) /* No argument list */
508 ParseNodeVector anv=an.getChildren();
509 for(int i=0; i<anv.size(); i++) {
510 arglist.add(parseExpression(anv.elementAt(i)));
515 private Vector parseArgumentList(ParseNode pn) {
516 Vector arglist=new Vector();
517 ParseNode an=pn.getChild("argument_list");
518 if (an==null) /* No argument list */
520 ParseNodeVector anv=an.getChildren();
521 for(int i=0; i<anv.size(); i++) {
522 arglist.add(parseExpression(anv.elementAt(i)));
527 private Vector[] parseConsArgumentList(ParseNode pn) {
528 Vector arglist=new Vector();
529 Vector varlist=new Vector();
530 ParseNode an=pn.getChild("cons_argument_list");
531 if (an==null) /* No argument list */
532 return new Vector[] {varlist, arglist};
533 ParseNodeVector anv=an.getChildren();
534 for(int i=0; i<anv.size(); i++) {
535 ParseNode cpn=anv.elementAt(i);
536 ParseNode var=cpn.getChild("var");
537 ParseNode exp=cpn.getChild("exp").getFirstChild();
538 varlist.add(var.getTerminal());
539 arglist.add(parseExpression(exp));
541 return new Vector[] {varlist, arglist};
544 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
545 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
546 ParseNodeVector pnv=pn.getChild("args").getChildren();
548 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
553 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
554 ParseNode headern=pn.getChild("method_header");
555 ParseNode bodyn=pn.getChild("body");
556 MethodDescriptor md=parseMethodHeader(headern);
557 BlockNode bn=parseBlock(bodyn);
559 state.addTreeCode(md,bn);
562 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
563 ParseNode mn=pn.getChild("modifiers");
564 Modifiers m=parseModifiersList(mn);
565 ParseNode cdecl=pn.getChild("constructor_declarator");
566 boolean isglobal=cdecl.getChild("global")!=null;
567 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
568 MethodDescriptor md=new MethodDescriptor(m, name, isglobal);
569 ParseNode paramnode=cdecl.getChild("parameters");
570 parseParameterList(md,paramnode);
571 ParseNode bodyn0=pn.getChild("body");
572 ParseNode bodyn=bodyn0.getChild("constructor_body");
575 if (bodyn!=null&&bodyn.getChild("block_statement_list")!=null)
576 bn=parseBlock(bodyn);
579 if (bodyn!=null&&bodyn.getChild("superinvoke")!=null) {
580 ParseNode sin=bodyn.getChild("superinvoke");
581 NameDescriptor nd=new NameDescriptor("super");
582 Vector args=parseArgumentList(sin);
583 MethodInvokeNode min=new MethodInvokeNode(nd);
584 for(int i=0; i<args.size(); i++) {
585 min.addArgument((ExpressionNode)args.get(i));
587 BlockExpressionNode ben=new BlockExpressionNode(min);
588 bn.addFirstBlockStatement(ben);
590 state.addTreeCode(md,bn);
593 public BlockNode parseBlock(ParseNode pn) {
594 this.m_taskexitnum = 0;
595 if (pn==null||isEmpty(pn.getTerminal()))
596 return new BlockNode();
597 ParseNode bsn=pn.getChild("block_statement_list");
598 return parseBlockHelper(bsn);
601 private BlockNode parseBlockHelper(ParseNode pn) {
602 ParseNodeVector pnv=pn.getChildren();
603 BlockNode bn=new BlockNode();
604 for(int i=0; i<pnv.size(); i++) {
605 Vector bsv=parseBlockStatement(pnv.elementAt(i));
606 for(int j=0; j<bsv.size(); j++) {
607 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
613 public BlockNode parseSingleBlock(ParseNode pn) {
614 BlockNode bn=new BlockNode();
615 Vector bsv=parseBlockStatement(pn);
616 for(int j=0; j<bsv.size(); j++) {
617 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
619 bn.setStyle(BlockNode.NOBRACES);
623 public Vector parseSESEBlock(Vector parentbs, ParseNode pn) {
624 ParseNodeVector pnv=pn.getChildren();
625 Vector bv=new Vector();
626 for(int i=0; i<pnv.size(); i++) {
627 bv.addAll(parseBlockStatement(pnv.elementAt(i)));
632 public Vector parseBlockStatement(ParseNode pn) {
633 Vector blockstatements=new Vector();
634 if (isNode(pn,"tag_declaration")) {
635 String name=pn.getChild("single").getTerminal();
636 String type=pn.getChild("type").getTerminal();
638 blockstatements.add(new TagDeclarationNode(name, type));
639 } else if (isNode(pn,"local_variable_declaration")) {
640 TypeDescriptor t=parseTypeDescriptor(pn);
641 ParseNode vn=pn.getChild("variable_declarators_list");
642 ParseNodeVector pnv=vn.getChildren();
643 for(int i=0; i<pnv.size(); i++) {
644 ParseNode vardecl=pnv.elementAt(i);
647 ParseNode tmp=vardecl;
648 TypeDescriptor arrayt=t;
649 while (tmp.getChild("single")==null) {
650 arrayt=arrayt.makeArray(state);
651 tmp=tmp.getChild("array");
653 String identifier=tmp.getChild("single").getTerminal();
655 ParseNode epn=vardecl.getChild("initializer");
658 ExpressionNode en=null;
660 en=parseExpression(epn.getFirstChild());
662 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
664 } else if (isNode(pn,"nop")) {
666 } else if (isNode(pn,"expression")) {
667 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
668 } else if (isNode(pn,"ifstatement")) {
669 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
670 parseSingleBlock(pn.getChild("statement").getFirstChild()),
671 pn.getChild("else_statement")!=null ? parseSingleBlock(pn.getChild("else_statement").getFirstChild()) : null));
672 } else if (isNode(pn,"taskexit")) {
674 if (pn.getChild("flag_effects_list")!=null)
675 vfe=parseFlags(pn.getChild("flag_effects_list"));
677 if (pn.getChild("cons_checks")!=null)
678 ccs=parseChecks(pn.getChild("cons_checks"));
680 blockstatements.add(new TaskExitNode(vfe, ccs, this.m_taskexitnum++));
681 } else if (isNode(pn,"atomic")) {
682 BlockNode bn=parseBlockHelper(pn);
683 blockstatements.add(new AtomicNode(bn));
684 } else if (isNode(pn,"return")) {
685 if (isEmpty(pn.getTerminal()))
686 blockstatements.add(new ReturnNode());
688 ExpressionNode en=parseExpression(pn.getFirstChild());
689 blockstatements.add(new ReturnNode(en));
691 } else if (isNode(pn,"block_statement_list")) {
692 BlockNode bn=parseBlockHelper(pn);
693 blockstatements.add(new SubBlockNode(bn));
694 } else if (isNode(pn,"empty")) {
696 } else if (isNode(pn,"statement_expression_list")) {
697 ParseNodeVector pnv=pn.getChildren();
698 BlockNode bn=new BlockNode();
699 for(int i=0; i<pnv.size(); i++) {
700 ExpressionNode en=parseExpression(pnv.elementAt(i));
701 blockstatements.add(new BlockExpressionNode(en));
703 bn.setStyle(BlockNode.EXPRLIST);
704 } else if (isNode(pn,"forstatement")) {
705 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
706 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
707 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
708 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
709 blockstatements.add(new LoopNode(init,condition,update,body));
710 } else if (isNode(pn,"whilestatement")) {
711 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
712 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
713 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
714 } else if (isNode(pn,"dowhilestatement")) {
715 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
716 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
717 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
718 } else if (isNode(pn,"sese")) {
719 SESENode start=new SESENode();
720 SESENode end =new SESENode();
722 end.setStart( start );
723 blockstatements.add(start);
724 blockstatements.addAll(parseSESEBlock(blockstatements,pn.getChild("body").getFirstChild()));
725 blockstatements.add(end);
726 } else if (isNode(pn,"continue")) {
727 blockstatements.add(new ContinueBreakNode(false));
728 } else if (isNode(pn,"break")) {
729 blockstatements.add(new ContinueBreakNode(true));
732 System.out.println("---------------");
733 System.out.println(pn.PPrint(3,true));
736 return blockstatements;
739 public MethodDescriptor parseMethodHeader(ParseNode pn) {
740 ParseNode mn=pn.getChild("modifiers");
741 Modifiers m=parseModifiersList(mn);
743 ParseNode tn=pn.getChild("returntype");
744 TypeDescriptor returntype;
746 returntype=parseTypeDescriptor(tn);
748 returntype=new TypeDescriptor(TypeDescriptor.VOID);
750 ParseNode pmd=pn.getChild("method_declarator");
751 String name=pmd.getChild("name").getTerminal();
752 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
754 ParseNode paramnode=pmd.getChild("parameters");
755 parseParameterList(md,paramnode);
759 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
760 ParseNode paramlist=pn.getChild("formal_parameter_list");
763 ParseNodeVector pnv=paramlist.getChildren();
764 for(int i=0; i<pnv.size(); i++) {
765 ParseNode paramn=pnv.elementAt(i);
767 if (isNode(paramn, "tag_parameter")) {
768 String paramname=paramn.getChild("single").getTerminal();
769 TypeDescriptor type=new TypeDescriptor(TypeDescriptor.TAG);
770 md.addTagParameter(type, paramname);
772 TypeDescriptor type=parseTypeDescriptor(paramn);
774 ParseNode tmp=paramn;
775 while (tmp.getChild("single")==null) {
776 type=type.makeArray(state);
777 tmp=tmp.getChild("array");
779 String paramname=tmp.getChild("single").getTerminal();
781 md.addParameter(type, paramname);
786 public Modifiers parseModifiersList(ParseNode pn) {
787 Modifiers m=new Modifiers();
788 ParseNode modlist=pn.getChild("modifier_list");
790 ParseNodeVector pnv=modlist.getChildren();
791 for(int i=0; i<pnv.size(); i++) {
792 ParseNode modn=pnv.elementAt(i);
793 if (isNode(modn,"public"))
794 m.addModifier(Modifiers.PUBLIC);
795 else if (isNode(modn,"protected"))
796 m.addModifier(Modifiers.PROTECTED);
797 else if (isNode(modn,"private"))
798 m.addModifier(Modifiers.PRIVATE);
799 else if (isNode(modn,"static"))
800 m.addModifier(Modifiers.STATIC);
801 else if (isNode(modn,"final"))
802 m.addModifier(Modifiers.FINAL);
803 else if (isNode(modn,"native"))
804 m.addModifier(Modifiers.NATIVE);
805 else if (isNode(modn,"synchronized"))
806 m.addModifier(Modifiers.SYNCHRONIZED);
807 else if (isNode(modn,"atomic"))
808 m.addModifier(Modifiers.ATOMIC);
809 else throw new Error("Unrecognized Modifier");
815 private boolean isNode(ParseNode pn, String label) {
816 if (pn.getLabel().equals(label))
821 private static boolean isEmpty(ParseNode pn) {
822 if (pn.getLabel().equals("empty"))
828 private static boolean isEmpty(String s) {
829 if (s.equals("empty"))
835 /** Throw an exception if something is unexpected */
836 private void check(ParseNode pn, String label) {
838 throw new Error(pn+ "IE: Expected '" + label + "', got null");
840 if (!pn.getLabel().equals(label)) {
841 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");