10 private int m_taskexitnum;
12 public BuildIR(State state) {
14 this.m_taskexitnum = 0;
17 public void buildtree(ParseNode pn, Set toanalyze) {
18 parseFile(pn, toanalyze);
23 NameDescriptor packages;
25 /** Parse the classes in this file */
26 public void parseFile(ParseNode pn, Set toanalyze) {
27 singleimports=new Vector();
28 multiimports=new Vector();
30 ParseNode ipn=pn.getChild("imports").getChild("import_decls_list");
32 ParseNodeVector pnv=ipn.getChildren();
33 for(int i=0; i<pnv.size(); i++) {
34 ParseNode pnimport=pnv.elementAt(i);
35 NameDescriptor nd=parseName(pnimport.getChild("name"));
36 if (isNode(pnimport,"import_single"))
37 singleimports.add(nd);
42 ParseNode ppn=pn.getChild("packages").getChild("package");
44 packages=parseName(ppn.getChild("name"));
46 ParseNode tpn=pn.getChild("type_declaration_list");
48 ParseNodeVector pnv=tpn.getChildren();
49 for(int i=0; i<pnv.size(); i++) {
50 ParseNode type_pn=pnv.elementAt(i);
51 if (isEmpty(type_pn)) /* Skip the semicolon */
53 if (isNode(type_pn,"class_declaration")) {
54 ClassDescriptor cn=parseTypeDecl(type_pn);
55 parseInitializers(cn);
59 // for inner classes/enum
61 // TODO add version for normal Java later
62 HashSet tovisit = new HashSet();
63 Iterator it_icds = cn.getInnerClasses();
64 while(it_icds.hasNext()) {
65 tovisit.add(it_icds.next());
68 while(!tovisit.isEmpty()) {
69 ClassDescriptor cd = (ClassDescriptor)tovisit.iterator().next();
71 parseInitializers(cd);
72 if(toanalyze != null) {
77 Iterator it_ics = cd.getInnerClasses();
78 while(it_ics.hasNext()) {
79 tovisit.add(it_ics.next());
82 Iterator it_ienums = cd.getEnum();
83 while(it_ienums.hasNext()) {
84 ClassDescriptor iecd = (ClassDescriptor)it_ienums.next();
85 if(toanalyze != null) {
92 Iterator it_enums = cn.getEnum();
93 while(it_enums.hasNext()) {
94 ClassDescriptor ecd = (ClassDescriptor)it_enums.next();
95 if(toanalyze != null) {
101 } else if (isNode(type_pn,"task_declaration")) {
102 TaskDescriptor td=parseTaskDecl(type_pn);
106 } else if ((state.MGC) && isNode(type_pn,"interface_declaration")) {
107 // TODO add version for normal Java later
108 ClassDescriptor cn = parseInterfaceDecl(type_pn);
115 // TODO add version for normal Java later
116 Iterator it_enums = cn.getEnum();
117 while(it_enums.hasNext()) {
118 ClassDescriptor ecd = (ClassDescriptor)it_enums.next();
119 if(toanalyze != null) {
125 } else if ((state.MGC) && isNode(type_pn,"enum_declaration")) {
126 // TODO add version for normal Java later
127 ClassDescriptor cn = parseEnumDecl(null, type_pn);
132 throw new Error(type_pn.getLabel());
138 public void parseInitializers(ClassDescriptor cn){
139 Vector fv=cn.getFieldVec();
140 for(int i=0;i<fv.size();i++) {
141 FieldDescriptor fd=(FieldDescriptor)fv.get(i);
142 if(fd.getExpressionNode()!=null) {
143 Iterator methodit = cn.getMethods();
144 while(methodit.hasNext()){
145 MethodDescriptor currmd=(MethodDescriptor)methodit.next();
146 if(currmd.isConstructor()){
147 BlockNode bn=state.getMethodBody(currmd);
148 NameNode nn=new NameNode(new NameDescriptor(fd.getSymbol()));
149 AssignmentNode an=new AssignmentNode(nn,fd.getExpressionNode(),new AssignOperation(1));
150 bn.addFirstBlockStatement(new BlockExpressionNode(an));
157 private ClassDescriptor parseEnumDecl(ClassDescriptor cn, ParseNode pn) {
158 ClassDescriptor ecd=new ClassDescriptor(pn.getChild("name").getTerminal(), false);
161 ecd.setSurroundingClass(cn.getSymbol());
162 ecd.setSurrounding(cn);
165 if (!(ecd.getSymbol().equals(TypeUtil.ObjectClass)||
166 ecd.getSymbol().equals(TypeUtil.TagClass))) {
167 ecd.setSuper(TypeUtil.ObjectClass);
169 ecd.setModifiers(parseModifiersList(pn.getChild("modifiers")));
170 parseEnumBody(ecd, pn.getChild("enumbody"));
174 private void parseEnumBody(ClassDescriptor cn, ParseNode pn) {
175 ParseNode decls=pn.getChild("enum_constants_list");
177 ParseNodeVector pnv=decls.getChildren();
178 for(int i=0; i<pnv.size(); i++) {
179 ParseNode decl=pnv.elementAt(i);
180 if (isNode(decl,"enum_constant")) {
181 parseEnumConstant(cn,decl);
182 } else throw new Error();
187 private void parseEnumConstant(ClassDescriptor cn, ParseNode pn) {
188 cn.addEnumConstant(pn.getChild("name").getTerminal());
191 public ClassDescriptor parseInterfaceDecl(ParseNode pn) {
192 ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal(), true);
193 //cn.setAsInterface();
194 if (!isEmpty(pn.getChild("superIF").getTerminal())) {
195 /* parse inherited interface name */
196 ParseNode snlist=pn.getChild("superIF").getChild("extend_interface_list");
197 ParseNodeVector pnv=snlist.getChildren();
198 for(int i=0; i<pnv.size(); i++) {
199 ParseNode decl=pnv.elementAt(i);
200 if (isNode(decl,"type")) {
201 NameDescriptor nd=parseName(decl.getChild("class").getChild("name"));
202 cn.addSuperInterface(nd.toString());
206 cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
207 parseInterfaceBody(cn, pn.getChild("interfacebody"));
211 private void parseInterfaceBody(ClassDescriptor cn, ParseNode pn) {
212 assert(cn.isInterface());
213 ParseNode decls=pn.getChild("interface_member_declaration_list");
215 ParseNodeVector pnv=decls.getChildren();
216 for(int i=0; i<pnv.size(); i++) {
217 ParseNode decl=pnv.elementAt(i);
218 if (isNode(decl,"constant")) {
219 parseInterfaceConstant(cn,decl);
220 } else if (isNode(decl,"method")) {
221 parseInterfaceMethod(cn,decl.getChild("method_declaration"));
222 } else throw new Error();
227 private void parseInterfaceConstant(ClassDescriptor cn, ParseNode pn) {
229 parseFieldDecl(cn,pn.getChild("field_declaration"));
235 private void parseInterfaceMethod(ClassDescriptor cn, ParseNode pn) {
236 ParseNode headern=pn.getChild("header");
237 ParseNode bodyn=pn.getChild("body");
238 MethodDescriptor md=parseMethodHeader(headern.getChild("method_header"));
239 md.getModifiers().addModifier(Modifiers.PUBLIC);
240 md.getModifiers().addModifier(Modifiers.ABSTRACT);
242 BlockNode bn=parseBlock(bodyn);
244 state.addTreeCode(md,bn);
246 // this is a hack for investigating new language features
247 // at the AST level, someday should evolve into a nice compiler
249 //if( cn.getSymbol().equals( ***put a class in here like: "Test" ) &&
250 // md.getSymbol().equals( ***put your method in here like: "main" )
252 // bn.setStyle( BlockNode.NORMAL );
253 // System.out.println( bn.printNode( 0 ) );
256 } catch (Exception e) {
257 System.out.println("Error with method:"+md.getSymbol());
261 System.out.println("Error with method:"+md.getSymbol());
267 public TaskDescriptor parseTaskDecl(ParseNode pn) {
268 TaskDescriptor td=new TaskDescriptor(pn.getChild("name").getTerminal());
269 ParseNode bodyn=pn.getChild("body");
270 BlockNode bn=parseBlock(bodyn);
271 parseParameterList(td, pn);
272 state.addTreeCode(td,bn);
273 if (pn.getChild("flag_effects_list")!=null)
274 td.addFlagEffects(parseFlags(pn.getChild("flag_effects_list")));
278 public Vector parseFlags(ParseNode pn) {
279 Vector vfe=new Vector();
280 ParseNodeVector pnv=pn.getChildren();
281 for(int i=0; i<pnv.size(); i++) {
282 ParseNode fn=pnv.elementAt(i);
283 FlagEffects fe=parseFlagEffects(fn);
289 public FlagEffects parseFlagEffects(ParseNode pn) {
290 if (isNode(pn,"flag_effect")) {
291 String flagname=pn.getChild("name").getTerminal();
292 FlagEffects fe=new FlagEffects(flagname);
293 if (pn.getChild("flag_list")!=null)
294 parseFlagEffect(fe, pn.getChild("flag_list"));
295 if (pn.getChild("tag_list")!=null)
296 parseTagEffect(fe, pn.getChild("tag_list"));
298 } else throw new Error();
301 public void parseTagEffect(FlagEffects fes, ParseNode pn) {
302 ParseNodeVector pnv=pn.getChildren();
303 for(int i=0; i<pnv.size(); i++) {
304 ParseNode pn2=pnv.elementAt(i);
306 if (isNode(pn2,"not")) {
308 pn2=pn2.getChild("name");
310 String name=pn2.getTerminal();
311 fes.addTagEffect(new TagEffect(name,status));
315 public void parseFlagEffect(FlagEffects fes, ParseNode pn) {
316 ParseNodeVector pnv=pn.getChildren();
317 for(int i=0; i<pnv.size(); i++) {
318 ParseNode pn2=pnv.elementAt(i);
320 if (isNode(pn2,"not")) {
322 pn2=pn2.getChild("name");
324 String name=pn2.getTerminal();
325 fes.addEffect(new FlagEffect(name,status));
329 public FlagExpressionNode parseFlagExpression(ParseNode pn) {
330 if (isNode(pn,"or")) {
331 ParseNodeVector pnv=pn.getChildren();
332 ParseNode left=pnv.elementAt(0);
333 ParseNode right=pnv.elementAt(1);
334 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_OR));
335 } else if (isNode(pn,"and")) {
336 ParseNodeVector pnv=pn.getChildren();
337 ParseNode left=pnv.elementAt(0);
338 ParseNode right=pnv.elementAt(1);
339 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_AND));
340 } else if (isNode(pn, "not")) {
341 ParseNodeVector pnv=pn.getChildren();
342 ParseNode left=pnv.elementAt(0);
343 return new FlagOpNode(parseFlagExpression(left), new Operation(Operation.LOGIC_NOT));
345 } else if (isNode(pn,"name")) {
346 return new FlagNode(pn.getTerminal());
352 public Vector parseChecks(ParseNode pn) {
353 Vector ccs=new Vector();
354 ParseNodeVector pnv=pn.getChildren();
355 for(int i=0; i<pnv.size(); i++) {
356 ParseNode fn=pnv.elementAt(i);
357 ConstraintCheck cc=parseConstraintCheck(fn);
363 public ConstraintCheck parseConstraintCheck(ParseNode pn) {
364 if (isNode(pn,"cons_check")) {
365 String specname=pn.getChild("name").getChild("identifier").getTerminal();
366 Vector[] args=parseConsArgumentList(pn);
367 ConstraintCheck cc=new ConstraintCheck(specname);
368 for(int i=0; i<args[0].size(); i++) {
369 cc.addVariable((String)args[0].get(i));
370 cc.addArgument((ExpressionNode)args[1].get(i));
373 } else throw new Error();
376 public void parseParameterList(TaskDescriptor td, ParseNode pn) {
379 ParseNode paramlist=pn.getChild("task_parameter_list");
382 ParseNodeVector pnv=paramlist.getChildren();
383 for(int i=0; i<pnv.size(); i++) {
384 ParseNode paramn=pnv.elementAt(i);
385 if(paramn.getChild("optional")!=null) {
387 paramn = paramn.getChild("optional").getFirstChild();
388 System.out.println("OPTIONAL FOUND!!!!!!!");
389 } else { optional = false;
390 System.out.println("NOT OPTIONAL");}
392 TypeDescriptor type=parseTypeDescriptor(paramn);
394 String paramname=paramn.getChild("single").getTerminal();
395 FlagExpressionNode fen=null;
396 if (paramn.getChild("flag")!=null)
397 fen=parseFlagExpression(paramn.getChild("flag").getFirstChild());
399 ParseNode tagnode=paramn.getChild("tag");
401 TagExpressionList tel=null;
403 tel=parseTagExpressionList(tagnode);
406 td.addParameter(type,paramname,fen, tel, optional);
410 public TagExpressionList parseTagExpressionList(ParseNode pn) {
411 //BUG FIX: change pn.getChildren() to pn.getChild("tag_expression_list").getChildren()
412 //To test, feed in any input program that uses tags
413 ParseNodeVector pnv=pn.getChild("tag_expression_list").getChildren();
414 TagExpressionList tel=new TagExpressionList();
415 for(int i=0; i<pnv.size(); i++) {
416 ParseNode tn=pnv.elementAt(i);
417 String type=tn.getChild("type").getTerminal();
418 String name=tn.getChild("single").getTerminal();
419 tel.addTag(type, name);
424 public ClassDescriptor parseTypeDecl(ParseNode pn) {
425 ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal(), false);
426 if (!isEmpty(pn.getChild("super").getTerminal())) {
427 /* parse superclass name */
428 ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
429 NameDescriptor nd=parseName(snn);
430 cn.setSuper(nd.toString());
432 if (!(cn.getSymbol().equals(TypeUtil.ObjectClass)||
433 cn.getSymbol().equals(TypeUtil.TagClass)))
434 cn.setSuper(TypeUtil.ObjectClass);
436 // check inherited interfaces
437 if (!isEmpty(pn.getChild("superIF").getTerminal())) {
438 /* parse inherited interface name */
439 ParseNode snlist=pn.getChild("superIF").getChild("interface_type_list");
440 ParseNodeVector pnv=snlist.getChildren();
441 for(int i=0; i<pnv.size(); i++) {
442 ParseNode decl=pnv.elementAt(i);
443 if (isNode(decl,"type")) {
444 NameDescriptor nd=parseName(decl.getChild("class").getChild("name"));
445 cn.addSuperInterface(nd.toString());
449 cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
450 parseClassBody(cn, pn.getChild("classbody"));
454 private void parseClassBody(ClassDescriptor cn, ParseNode pn) {
455 ParseNode decls=pn.getChild("class_body_declaration_list");
457 ParseNodeVector pnv=decls.getChildren();
458 for(int i=0; i<pnv.size(); i++) {
459 ParseNode decl=pnv.elementAt(i);
460 if (isNode(decl,"member")) {
461 parseClassMember(cn,decl);
462 } else if (isNode(decl,"constructor")) {
463 parseConstructorDecl(cn,decl.getChild("constructor_declaration"));
464 } else if (isNode(decl, "static_block")) {
466 // TODO add version for normal Java later
467 parseStaticBlockDecl(cn, decl.getChild("static_block_declaration"));
469 throw new Error("Static blocks not implemented");
471 } else if (isNode(decl,"block")) {
472 } else throw new Error();
477 private void parseClassMember(ClassDescriptor cn, ParseNode pn) {
478 ParseNode fieldnode=pn.getChild("field");
479 if (fieldnode!=null) {
480 parseFieldDecl(cn,fieldnode.getChild("field_declaration"));
483 ParseNode methodnode=pn.getChild("method");
484 if (methodnode!=null) {
485 parseMethodDecl(cn,methodnode.getChild("method_declaration"));
488 ParseNode innerclassnode=pn.getChild("inner_class_declaration");
489 if (innerclassnode!=null) {
491 parseInnerClassDecl(cn,innerclassnode);
494 // TODO add version for noraml Java later
495 throw new Error("Error: inner class in Class " + cn.getSymbol() + " is not supported yet");
498 ParseNode enumnode=pn.getChild("enum_declaration");
499 if (enumnode!=null) {
501 parseEnumDecl(cn,enumnode);
504 // TODO add version for noraml Java later
505 throw new Error("Error: enumerated type in Class " + cn.getSymbol() + " is not supported yet");
508 ParseNode flagnode=pn.getChild("flag");
509 if (flagnode!=null) {
510 parseFlagDecl(cn, flagnode.getChild("flag_declaration"));
516 private ClassDescriptor parseInnerClassDecl(ClassDescriptor cn, ParseNode pn) {
517 ClassDescriptor icn=new ClassDescriptor(pn.getChild("name").getTerminal(), false);
518 icn.setAsInnerClass();
519 icn.setSurroundingClass(cn.getSymbol());
520 icn.setSurrounding(cn);
521 cn.addInnerClass(icn);
522 if (!isEmpty(pn.getChild("super").getTerminal())) {
523 /* parse superclass name */
524 ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
525 NameDescriptor nd=parseName(snn);
526 icn.setSuper(nd.toString());
528 if (!(icn.getSymbol().equals(TypeUtil.ObjectClass)||
529 icn.getSymbol().equals(TypeUtil.TagClass)))
530 icn.setSuper(TypeUtil.ObjectClass);
532 // check inherited interfaces
533 if (!isEmpty(pn.getChild("superIF").getTerminal())) {
534 /* parse inherited interface name */
535 ParseNode snlist=pn.getChild("superIF").getChild("interface_type_list");
536 ParseNodeVector pnv=snlist.getChildren();
537 for(int i=0; i<pnv.size(); i++) {
538 ParseNode decl=pnv.elementAt(i);
539 if (isNode(decl,"type")) {
540 NameDescriptor nd=parseName(decl.getChild("class").getChild("name"));
541 icn.addSuperInterface(nd.toString());
545 icn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
546 if(!icn.isStatic()) {
547 throw new Error("Error: inner class " + icn.getSymbol() + " in Class " +
548 cn.getSymbol() + " is not a nested class and is not supported yet!");
550 parseClassBody(icn, pn.getChild("classbody"));
554 private TypeDescriptor parseTypeDescriptor(ParseNode pn) {
555 ParseNode tn=pn.getChild("type");
556 String type_st=tn.getTerminal();
557 if(type_st.equals("byte")) {
558 return state.getTypeDescriptor(TypeDescriptor.BYTE);
559 } else if(type_st.equals("short")) {
560 return state.getTypeDescriptor(TypeDescriptor.SHORT);
561 } else if(type_st.equals("boolean")) {
562 return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
563 } else if(type_st.equals("int")) {
564 return state.getTypeDescriptor(TypeDescriptor.INT);
565 } else if(type_st.equals("long")) {
566 return state.getTypeDescriptor(TypeDescriptor.LONG);
567 } else if(type_st.equals("char")) {
568 return state.getTypeDescriptor(TypeDescriptor.CHAR);
569 } else if(type_st.equals("float")) {
570 return state.getTypeDescriptor(TypeDescriptor.FLOAT);
571 } else if(type_st.equals("double")) {
572 return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
573 } else if(type_st.equals("class")) {
574 ParseNode nn=tn.getChild("class");
575 return state.getTypeDescriptor(parseName(nn.getChild("name")));
576 } else if(type_st.equals("array")) {
577 ParseNode nn=tn.getChild("array");
578 TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
579 Integer numdims=(Integer)nn.getChild("dims").getLiteral();
580 for(int i=0; i<numdims.intValue(); i++)
581 td=td.makeArray(state);
584 System.out.println(pn.PPrint(2, true));
589 private NameDescriptor parseName(ParseNode nn) {
590 ParseNode base=nn.getChild("base");
591 ParseNode id=nn.getChild("identifier");
593 return new NameDescriptor(id.getTerminal());
594 return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
598 private void parseFlagDecl(ClassDescriptor cn,ParseNode pn) {
599 String name=pn.getChild("name").getTerminal();
600 FlagDescriptor flag=new FlagDescriptor(name);
601 if (pn.getChild("external")!=null)
606 private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
607 ParseNode mn=pn.getChild("modifier");
608 Modifiers m=parseModifiersList(mn);
609 if((state.MGC) && cn.isInterface()) {
610 // TODO add version for normal Java later
611 // Can only be PUBLIC or STATIC or FINAL
612 if((m.isAbstract()) || (m.isAtomic()) || (m.isNative())
613 || (m.isSynchronized())) {
614 throw new Error("Error: field in Interface " + cn.getSymbol() + "can only be PUBLIC or STATIC or FINAL");
616 m.addModifier(Modifiers.PUBLIC);
617 m.addModifier(Modifiers.STATIC);
618 m.addModifier(Modifiers.FINAL);
621 ParseNode tn=pn.getChild("type");
622 TypeDescriptor t=parseTypeDescriptor(tn);
623 ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
624 ParseNodeVector pnv=vn.getChildren();
625 boolean isglobal=pn.getChild("global")!=null;
627 for(int i=0; i<pnv.size(); i++) {
628 ParseNode vardecl=pnv.elementAt(i);
629 ParseNode tmp=vardecl;
630 TypeDescriptor arrayt=t;
631 while (tmp.getChild("single")==null) {
632 arrayt=arrayt.makeArray(state);
633 tmp=tmp.getChild("array");
635 String identifier=tmp.getChild("single").getTerminal();
636 ParseNode epn=vardecl.getChild("initializer");
638 ExpressionNode en=null;
640 en=parseExpression(epn.getFirstChild());
642 cn.addField(new FieldDescriptor(m, arrayt, identifier, en, isglobal));
646 private ExpressionNode parseExpression(ParseNode pn) {
647 if (isNode(pn,"assignment"))
648 return parseAssignmentExpression(pn);
649 else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
650 isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
651 isNode(pn,"bitwise_and")||isNode(pn,"equal")||
652 isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
653 isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
654 isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
655 isNode(pn,"rightshift")||isNode(pn,"sub")||
656 isNode(pn,"urightshift")||isNode(pn,"sub")||
657 isNode(pn,"add")||isNode(pn,"mult")||
658 isNode(pn,"div")||isNode(pn,"mod")) {
659 ParseNodeVector pnv=pn.getChildren();
660 ParseNode left=pnv.elementAt(0);
661 ParseNode right=pnv.elementAt(1);
662 Operation op=new Operation(pn.getLabel());
663 return new OpNode(parseExpression(left),parseExpression(right),op);
664 } else if (isNode(pn,"unaryplus")||
665 isNode(pn,"unaryminus")||
668 ParseNode left=pn.getFirstChild();
669 Operation op=new Operation(pn.getLabel());
670 return new OpNode(parseExpression(left),op);
671 } else if (isNode(pn,"postinc")||
672 isNode(pn,"postdec")) {
673 ParseNode left=pn.getFirstChild();
674 AssignOperation op=new AssignOperation(pn.getLabel());
675 return new AssignmentNode(parseExpression(left),null,op);
677 } else if (isNode(pn,"preinc")||
678 isNode(pn,"predec")) {
679 ParseNode left=pn.getFirstChild();
680 AssignOperation op=isNode(pn,"preinc") ? new AssignOperation(AssignOperation.PLUSEQ) : new AssignOperation(AssignOperation.MINUSEQ);
681 return new AssignmentNode(parseExpression(left),
682 new LiteralNode("integer",new Integer(1)),op);
683 } else if (isNode(pn,"literal")) {
684 String literaltype=pn.getTerminal();
685 ParseNode literalnode=pn.getChild(literaltype);
686 Object literal_obj=literalnode.getLiteral();
687 return new LiteralNode(literaltype, literal_obj);
688 } else if (isNode(pn,"createobject")) {
689 TypeDescriptor td=parseTypeDescriptor(pn);
691 Vector args=parseArgumentList(pn);
692 boolean isglobal=pn.getChild("global")!=null||
693 pn.getChild("scratch")!=null;
694 String disjointId=null;
695 if( pn.getChild("disjoint") != null) {
696 disjointId = pn.getChild("disjoint").getTerminal();
698 CreateObjectNode con=new CreateObjectNode(td, isglobal, disjointId);
699 for(int i=0; i<args.size(); i++) {
700 con.addArgument((ExpressionNode)args.get(i));
702 /* Could have flag set or tag added here */
703 if (pn.getChild("flag_list")!=null||pn.getChild("tag_list")!=null) {
704 FlagEffects fe=new FlagEffects(null);
705 if (pn.getChild("flag_list")!=null)
706 parseFlagEffect(fe, pn.getChild("flag_list"));
708 if (pn.getChild("tag_list")!=null)
709 parseTagEffect(fe, pn.getChild("tag_list"));
710 con.addFlagEffects(fe);
714 } else if (isNode(pn,"createarray")) {
715 //System.out.println(pn.PPrint(3,true));
716 boolean isglobal=pn.getChild("global")!=null||
717 pn.getChild("scratch")!=null;
718 String disjointId=null;
719 if( pn.getChild("disjoint") != null) {
720 disjointId = pn.getChild("disjoint").getTerminal();
722 TypeDescriptor td=parseTypeDescriptor(pn);
723 Vector args=parseDimExprs(pn);
725 if (pn.getChild("dims_opt").getLiteral()!=null)
726 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
727 for(int i=0; i<(args.size()+num); i++)
728 td=td.makeArray(state);
729 CreateObjectNode con=new CreateObjectNode(td, isglobal, disjointId);
730 for(int i=0; i<args.size(); i++) {
731 con.addArgument((ExpressionNode)args.get(i));
734 } else if (isNode(pn,"name")) {
735 NameDescriptor nd=parseName(pn);
736 return new NameNode(nd);
737 } else if (isNode(pn,"this")) {
738 NameDescriptor nd=new NameDescriptor("this");
739 return new NameNode(nd);
740 } else if (isNode(pn,"isavailable")) {
741 NameDescriptor nd=new NameDescriptor(pn.getTerminal());
742 return new OpNode(new NameNode(nd),null,new Operation(Operation.ISAVAILABLE));
743 } else if (isNode(pn,"methodinvoke1")) {
744 NameDescriptor nd=parseName(pn.getChild("name"));
745 Vector args=parseArgumentList(pn);
746 MethodInvokeNode min=new MethodInvokeNode(nd);
747 for(int i=0; i<args.size(); i++) {
748 min.addArgument((ExpressionNode)args.get(i));
751 } else if (isNode(pn,"methodinvoke2")) {
752 String methodid=pn.getChild("id").getTerminal();
753 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
754 Vector args=parseArgumentList(pn);
755 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
756 for(int i=0; i<args.size(); i++) {
757 min.addArgument((ExpressionNode)args.get(i));
760 } else if (isNode(pn,"fieldaccess")) {
761 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
762 String fieldname=pn.getChild("field").getTerminal();
763 return new FieldAccessNode(en,fieldname);
764 } else if (isNode(pn,"arrayaccess")) {
765 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
766 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
767 return new ArrayAccessNode(en,index);
768 } else if (isNode(pn,"cast1")) {
770 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
771 } catch (Exception e) {
772 System.out.println(pn.PPrint(1,true));
776 } else if (isNode(pn,"cast2")) {
777 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
778 } else if (isNode(pn, "getoffset")) {
779 TypeDescriptor td=parseTypeDescriptor(pn);
780 String fieldname = pn.getChild("field").getTerminal();
781 //System.out.println("Checking the values of: "+ " td.toString()= " + td.toString()+ " fieldname= " + fieldname);
782 return new OffsetNode(td, fieldname);
783 } else if (isNode(pn, "tert")) {
784 return new TertiaryNode(parseExpression(pn.getChild("cond").getFirstChild()),
785 parseExpression(pn.getChild("trueexpr").getFirstChild()),
786 parseExpression(pn.getChild("falseexpr").getFirstChild()) );
787 } else if (isNode(pn, "instanceof")) {
788 ExpressionNode exp=parseExpression(pn.getChild("exp").getFirstChild());
789 TypeDescriptor t=parseTypeDescriptor(pn);
790 return new InstanceOfNode(exp,t);
791 } else if (isNode(pn, "array_initializer")) {
792 System.out.println( "Array initializers not implemented yet." );
794 //TypeDescriptor td=parseTypeDescriptor(pn);
795 //Vector initializers=parseVariableInitializerList(pn);
796 //return new ArrayInitializerNode(td, initializers);
798 System.out.println("---------------------");
799 System.out.println(pn.PPrint(3,true));
804 private Vector parseDimExprs(ParseNode pn) {
805 Vector arglist=new Vector();
806 ParseNode an=pn.getChild("dim_exprs");
807 if (an==null) /* No argument list */
809 ParseNodeVector anv=an.getChildren();
810 for(int i=0; i<anv.size(); i++) {
811 arglist.add(parseExpression(anv.elementAt(i)));
816 private Vector parseArgumentList(ParseNode pn) {
817 Vector arglist=new Vector();
818 ParseNode an=pn.getChild("argument_list");
819 if (an==null) /* No argument list */
821 ParseNodeVector anv=an.getChildren();
822 for(int i=0; i<anv.size(); i++) {
823 arglist.add(parseExpression(anv.elementAt(i)));
828 private Vector[] parseConsArgumentList(ParseNode pn) {
829 Vector arglist=new Vector();
830 Vector varlist=new Vector();
831 ParseNode an=pn.getChild("cons_argument_list");
832 if (an==null) /* No argument list */
833 return new Vector[] {varlist, arglist};
834 ParseNodeVector anv=an.getChildren();
835 for(int i=0; i<anv.size(); i++) {
836 ParseNode cpn=anv.elementAt(i);
837 ParseNode var=cpn.getChild("var");
838 ParseNode exp=cpn.getChild("exp").getFirstChild();
839 varlist.add(var.getTerminal());
840 arglist.add(parseExpression(exp));
842 return new Vector[] {varlist, arglist};
845 private Vector parseVariableInitializerList(ParseNode pn) {
846 Vector varInitList=new Vector();
847 ParseNode vin=pn.getChild("variable_init_list");
848 if (vin==null) /* No argument list */
850 ParseNodeVector vinv=vin.getChildren();
851 for(int i=0; i<vinv.size(); i++) {
852 varInitList.add(parseExpression(vinv.elementAt(i)));
857 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
858 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
859 ParseNodeVector pnv=pn.getChild("args").getChildren();
861 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
866 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
867 ParseNode headern=pn.getChild("method_header");
868 ParseNode bodyn=pn.getChild("body");
869 MethodDescriptor md=parseMethodHeader(headern);
871 BlockNode bn=parseBlock(bodyn);
873 state.addTreeCode(md,bn);
875 // this is a hack for investigating new language features
876 // at the AST level, someday should evolve into a nice compiler
878 //if( cn.getSymbol().equals( ***put a class in here like: "Test" ) &&
879 // md.getSymbol().equals( ***put your method in here like: "main" )
881 // bn.setStyle( BlockNode.NORMAL );
882 // System.out.println( bn.printNode( 0 ) );
885 } catch (Exception e) {
886 System.out.println("Error with method:"+md.getSymbol());
890 System.out.println("Error with method:"+md.getSymbol());
896 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
897 ParseNode mn=pn.getChild("modifiers");
898 Modifiers m=parseModifiersList(mn);
899 ParseNode cdecl=pn.getChild("constructor_declarator");
900 boolean isglobal=cdecl.getChild("global")!=null;
901 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
902 MethodDescriptor md=new MethodDescriptor(m, name, isglobal);
903 ParseNode paramnode=cdecl.getChild("parameters");
904 parseParameterList(md,paramnode);
905 ParseNode bodyn0=pn.getChild("body");
906 ParseNode bodyn=bodyn0.getChild("constructor_body");
909 if (bodyn!=null&&bodyn.getChild("block_statement_list")!=null)
910 bn=parseBlock(bodyn);
913 if (bodyn!=null&&bodyn.getChild("superinvoke")!=null) {
914 ParseNode sin=bodyn.getChild("superinvoke");
915 NameDescriptor nd=new NameDescriptor("super");
916 Vector args=parseArgumentList(sin);
917 MethodInvokeNode min=new MethodInvokeNode(nd);
918 for(int i=0; i<args.size(); i++) {
919 min.addArgument((ExpressionNode)args.get(i));
921 BlockExpressionNode ben=new BlockExpressionNode(min);
922 bn.addFirstBlockStatement(ben);
924 } else if (bodyn!=null&&bodyn.getChild("explconstrinv")!=null) {
925 ParseNode eci=bodyn.getChild("explconstrinv");
926 NameDescriptor nd=new NameDescriptor(cn.getSymbol());
927 Vector args=parseArgumentList(eci);
928 MethodInvokeNode min=new MethodInvokeNode(nd);
929 for(int i=0; i<args.size(); i++) {
930 min.addArgument((ExpressionNode)args.get(i));
932 BlockExpressionNode ben=new BlockExpressionNode(min);
933 bn.addFirstBlockStatement(ben);
935 state.addTreeCode(md,bn);
938 private void parseStaticBlockDecl(ClassDescriptor cn, ParseNode pn) {
939 // Each class maintains one MethodDecscriptor which combines all its
940 // static blocks in their declaration order
941 boolean isfirst = false;
942 MethodDescriptor md = (MethodDescriptor)cn.getMethodTable().get("staticblocks");
944 // the first static block for this class
945 Modifiers m=new Modifiers();
946 m.addModifier(Modifiers.STATIC);
947 md = new MethodDescriptor(m, "staticblocks", false);
948 md.setAsStaticBlock();
951 ParseNode bodyn=pn.getChild("body");
955 cn.incStaticBlocks();
957 if (bodyn!=null&&bodyn.getChild("block_statement_list")!=null)
958 bn=parseBlock(bodyn);
962 state.addTreeCode(md,bn);
964 BlockNode obn = state.getMethodBody(md);
965 for(int i = 0; i < bn.size(); i++) {
966 BlockStatementNode bsn = bn.get(i);
967 obn.addBlockStatement(bsn);
969 //TODO state.addTreeCode(md, obn);
974 public BlockNode parseBlock(ParseNode pn) {
975 this.m_taskexitnum = 0;
976 if (pn==null||isEmpty(pn.getTerminal()))
977 return new BlockNode();
978 ParseNode bsn=pn.getChild("block_statement_list");
979 return parseBlockHelper(bsn);
982 private BlockNode parseBlockHelper(ParseNode pn) {
983 ParseNodeVector pnv=pn.getChildren();
984 BlockNode bn=new BlockNode();
985 for(int i=0; i<pnv.size(); i++) {
986 Vector bsv=parseBlockStatement(pnv.elementAt(i));
987 for(int j=0; j<bsv.size(); j++) {
988 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
994 public BlockNode parseSingleBlock(ParseNode pn) {
995 BlockNode bn=new BlockNode();
996 Vector bsv=parseBlockStatement(pn);
997 for(int j=0; j<bsv.size(); j++) {
998 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
1000 bn.setStyle(BlockNode.NOBRACES);
1004 public Vector parseSESEBlock(Vector parentbs, ParseNode pn) {
1005 ParseNodeVector pnv=pn.getChildren();
1006 Vector bv=new Vector();
1007 for(int i=0; i<pnv.size(); i++) {
1008 bv.addAll(parseBlockStatement(pnv.elementAt(i)));
1013 public Vector parseBlockStatement(ParseNode pn) {
1014 Vector blockstatements=new Vector();
1015 if (isNode(pn,"tag_declaration")) {
1016 String name=pn.getChild("single").getTerminal();
1017 String type=pn.getChild("type").getTerminal();
1019 blockstatements.add(new TagDeclarationNode(name, type));
1020 } else if (isNode(pn,"local_variable_declaration")) {
1021 TypeDescriptor t=parseTypeDescriptor(pn);
1022 ParseNode vn=pn.getChild("variable_declarators_list");
1023 ParseNodeVector pnv=vn.getChildren();
1024 for(int i=0; i<pnv.size(); i++) {
1025 ParseNode vardecl=pnv.elementAt(i);
1028 ParseNode tmp=vardecl;
1029 TypeDescriptor arrayt=t;
1030 while (tmp.getChild("single")==null) {
1031 arrayt=arrayt.makeArray(state);
1032 tmp=tmp.getChild("array");
1034 String identifier=tmp.getChild("single").getTerminal();
1036 ParseNode epn=vardecl.getChild("initializer");
1039 ExpressionNode en=null;
1041 en=parseExpression(epn.getFirstChild());
1043 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
1045 } else if (isNode(pn,"nop")) {
1047 } else if (isNode(pn,"expression")) {
1048 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
1049 } else if (isNode(pn,"ifstatement")) {
1050 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
1051 parseSingleBlock(pn.getChild("statement").getFirstChild()),
1052 pn.getChild("else_statement")!=null ? parseSingleBlock(pn.getChild("else_statement").getFirstChild()) : null));
1053 } else if ((state.MGC) && (isNode(pn,"switch_statement"))) {
1054 // TODO add version for normal Java later
1055 blockstatements.add(new SwitchStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
1056 parseSingleBlock(pn.getChild("statement").getFirstChild())));
1057 } else if ((state.MGC) && (isNode(pn,"switch_block_list"))) {
1058 // TODO add version for normal Java later
1059 ParseNodeVector pnv=pn.getChildren();
1060 for(int i=0; i<pnv.size(); i++) {
1061 ParseNode sblockdecl=pnv.elementAt(i);
1063 if(isNode(sblockdecl, "switch_block")) {
1064 ParseNode lpn=sblockdecl.getChild("switch_labels").getChild("switch_label_list");
1065 ParseNodeVector labelv=lpn.getChildren();
1066 Vector<SwitchLabelNode> slv = new Vector<SwitchLabelNode>();
1067 for(int j=0; j<labelv.size(); j++) {
1068 ParseNode labeldecl=labelv.elementAt(j);
1069 if(isNode(labeldecl, "switch_label")) {
1070 slv.addElement(new SwitchLabelNode(parseExpression(labeldecl.getChild("constant_expression").getFirstChild()), false));
1071 } else if(isNode(labeldecl, "default_switch_label")) {
1072 slv.addElement(new SwitchLabelNode(null, true));
1076 blockstatements.add(new SwitchBlockNode(slv,
1077 parseSingleBlock(sblockdecl.getChild("switch_statements").getFirstChild())));
1081 } else if (isNode(pn,"taskexit")) {
1083 if (pn.getChild("flag_effects_list")!=null)
1084 vfe=parseFlags(pn.getChild("flag_effects_list"));
1086 if (pn.getChild("cons_checks")!=null)
1087 ccs=parseChecks(pn.getChild("cons_checks"));
1089 blockstatements.add(new TaskExitNode(vfe, ccs, this.m_taskexitnum++));
1090 } else if (isNode(pn,"atomic")) {
1091 BlockNode bn=parseBlockHelper(pn);
1092 blockstatements.add(new AtomicNode(bn));
1093 } else if (isNode(pn,"synchronized")) {
1094 BlockNode bn=parseBlockHelper(pn.getChild("block"));
1095 ExpressionNode en=parseExpression(pn.getChild("expr").getFirstChild());
1096 blockstatements.add(new SynchronizedNode(en, bn));
1097 } else if (isNode(pn,"return")) {
1098 if (isEmpty(pn.getTerminal()))
1099 blockstatements.add(new ReturnNode());
1101 ExpressionNode en=parseExpression(pn.getFirstChild());
1102 blockstatements.add(new ReturnNode(en));
1104 } else if (isNode(pn,"block_statement_list")) {
1105 BlockNode bn=parseBlockHelper(pn);
1106 blockstatements.add(new SubBlockNode(bn));
1107 } else if (isNode(pn,"empty")) {
1109 } else if (isNode(pn,"statement_expression_list")) {
1110 ParseNodeVector pnv=pn.getChildren();
1111 BlockNode bn=new BlockNode();
1112 for(int i=0; i<pnv.size(); i++) {
1113 ExpressionNode en=parseExpression(pnv.elementAt(i));
1114 blockstatements.add(new BlockExpressionNode(en));
1116 bn.setStyle(BlockNode.EXPRLIST);
1117 } else if (isNode(pn,"forstatement")) {
1118 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
1119 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
1120 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
1121 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
1122 blockstatements.add(new LoopNode(init,condition,update,body));
1123 } else if (isNode(pn,"whilestatement")) {
1124 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
1125 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
1126 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
1127 } else if (isNode(pn,"dowhilestatement")) {
1128 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
1129 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
1130 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
1131 } else if (isNode(pn,"sese")) {
1132 ParseNode pnID=pn.getChild("identifier");
1134 if( pnID != null ) { stID=pnID.getFirstChild().getTerminal(); }
1135 SESENode start=new SESENode(stID);
1136 SESENode end =new SESENode(stID);
1137 start.setEnd( end );
1138 end.setStart( start );
1139 blockstatements.add(start);
1140 blockstatements.addAll(parseSESEBlock(blockstatements,pn.getChild("body").getFirstChild()));
1141 blockstatements.add(end);
1142 } else if (isNode(pn,"continue")) {
1143 blockstatements.add(new ContinueBreakNode(false));
1144 } else if (isNode(pn,"break")) {
1145 blockstatements.add(new ContinueBreakNode(true));
1147 } else if (isNode(pn,"genreach")) {
1148 String graphName = pn.getChild("graphName").getTerminal();
1149 blockstatements.add( new GenReachNode( graphName ) );
1152 System.out.println("---------------");
1153 System.out.println(pn.PPrint(3,true));
1156 return blockstatements;
1159 public MethodDescriptor parseMethodHeader(ParseNode pn) {
1160 ParseNode mn=pn.getChild("modifiers");
1161 Modifiers m=parseModifiersList(mn);
1163 ParseNode tn=pn.getChild("returntype");
1164 TypeDescriptor returntype;
1166 returntype=parseTypeDescriptor(tn);
1168 returntype=new TypeDescriptor(TypeDescriptor.VOID);
1170 ParseNode pmd=pn.getChild("method_declarator");
1171 String name=pmd.getChild("name").getTerminal();
1172 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
1174 ParseNode paramnode=pmd.getChild("parameters");
1175 parseParameterList(md,paramnode);
1179 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
1180 ParseNode paramlist=pn.getChild("formal_parameter_list");
1181 if (paramlist==null)
1183 ParseNodeVector pnv=paramlist.getChildren();
1184 for(int i=0; i<pnv.size(); i++) {
1185 ParseNode paramn=pnv.elementAt(i);
1187 if (isNode(paramn, "tag_parameter")) {
1188 String paramname=paramn.getChild("single").getTerminal();
1189 TypeDescriptor type=new TypeDescriptor(TypeDescriptor.TAG);
1190 md.addTagParameter(type, paramname);
1192 TypeDescriptor type=parseTypeDescriptor(paramn);
1194 ParseNode tmp=paramn;
1195 while (tmp.getChild("single")==null) {
1196 type=type.makeArray(state);
1197 tmp=tmp.getChild("array");
1199 String paramname=tmp.getChild("single").getTerminal();
1201 md.addParameter(type, paramname);
1206 public Modifiers parseModifiersList(ParseNode pn) {
1207 Modifiers m=new Modifiers();
1208 ParseNode modlist=pn.getChild("modifier_list");
1209 if (modlist!=null) {
1210 ParseNodeVector pnv=modlist.getChildren();
1211 for(int i=0; i<pnv.size(); i++) {
1212 ParseNode modn=pnv.elementAt(i);
1213 if (isNode(modn,"public"))
1214 m.addModifier(Modifiers.PUBLIC);
1215 else if (isNode(modn,"protected"))
1216 m.addModifier(Modifiers.PROTECTED);
1217 else if (isNode(modn,"private"))
1218 m.addModifier(Modifiers.PRIVATE);
1219 else if (isNode(modn,"static"))
1220 m.addModifier(Modifiers.STATIC);
1221 else if (isNode(modn,"final"))
1222 m.addModifier(Modifiers.FINAL);
1223 else if (isNode(modn,"native"))
1224 m.addModifier(Modifiers.NATIVE);
1225 else if (isNode(modn,"synchronized"))
1226 m.addModifier(Modifiers.SYNCHRONIZED);
1227 else if (isNode(modn,"atomic"))
1228 m.addModifier(Modifiers.ATOMIC);
1229 else if (isNode(modn,"abstract"))
1230 m.addModifier(Modifiers.ABSTRACT);
1231 else if (isNode(modn,"volatile"))
1232 m.addModifier(Modifiers.VOLATILE);
1233 else throw new Error("Unrecognized Modifier");
1239 private boolean isNode(ParseNode pn, String label) {
1240 if (pn.getLabel().equals(label))
1245 private static boolean isEmpty(ParseNode pn) {
1246 if (pn.getLabel().equals("empty"))
1252 private static boolean isEmpty(String s) {
1253 if (s.equals("empty"))
1259 /** Throw an exception if something is unexpected */
1260 private void check(ParseNode pn, String label) {
1262 throw new Error(pn+ "IE: Expected '" + label + "', got null");
1264 if (!pn.getLabel().equals(label)) {
1265 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");