8 public BuildIR(State state) {
11 public void buildtree() {
12 for(Iterator it=state.parsetrees.iterator();it.hasNext();) {
13 ParseNode pn=(ParseNode)it.next();
18 /** Parse the classes in this file */
19 public void parseFile(ParseNode pn) {
20 ParseNode tpn=pn.getChild("type_declaration_list");
22 ParseNodeVector pnv=tpn.getChildren();
23 for(int i=0;i<pnv.size();i++) {
24 ParseNode type_pn=pnv.elementAt(i);
25 if (isEmpty(type_pn)) /* Skip the semicolon */
27 if (isNode(type_pn,"class_declaration")) {
28 ClassDescriptor cn=parseTypeDecl(type_pn);
30 } else if (isNode(type_pn,"task_declaration")) {
31 TaskDescriptor td=parseTaskDecl(type_pn);
34 throw new Error(type_pn.getLabel());
40 public TaskDescriptor parseTaskDecl(ParseNode pn) {
41 TaskDescriptor td=new TaskDescriptor(pn.getChild("name").getTerminal());
42 ParseNode bodyn=pn.getChild("body");
43 BlockNode bn=parseBlock(bodyn);
44 parseParameterList(td, pn);
45 state.addTreeCode(td,bn);
46 if (pn.getChild("flag_effects_list")!=null)
47 td.addFlagEffects(parseFlags(pn.getChild("flag_effects_list")));
51 public Vector parseFlags(ParseNode pn) {
52 Vector vfe=new Vector();
53 ParseNodeVector pnv=pn.getChildren();
54 for(int i=0;i<pnv.size();i++) {
55 ParseNode fn=pnv.elementAt(i);
56 FlagEffects fe=parseFlagEffects(fn);
62 public FlagEffects parseFlagEffects(ParseNode pn) {
63 if (isNode(pn,"flag_effect")) {
64 String flagname=pn.getChild("name").getTerminal();
65 FlagEffects fe=new FlagEffects(flagname);
66 parseFlagEffect(fe, pn.getChild("flag_list"));
68 } else throw new Error();
71 public void parseFlagEffect(FlagEffects fes, ParseNode pn) {
72 ParseNodeVector pnv=pn.getChildren();
73 for(int i=0;i<pnv.size();i++) {
75 if (pn.getChild("not")!=null) {
77 pn=pn.getChild("not");
79 String name=pn.getChild("name").getTerminal();
80 fes.addEffect(new FlagEffect(name,status));
84 public FlagExpressionNode parseFlagExpression(ParseNode pn) {
85 if (pn.getChild("or")!=null) {
86 ParseNodeVector pnv=pn.getChild("or").getChildren();
87 ParseNode left=pnv.elementAt(0);
88 ParseNode right=pnv.elementAt(1);
89 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_OR));
90 } else if (pn.getChild("and")!=null) {
91 ParseNodeVector pnv=pn.getChild("and").getChildren();
92 ParseNode left=pnv.elementAt(0);
93 ParseNode right=pnv.elementAt(1);
94 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_AND));
95 } else if (pn.getChild("not")!=null) {
96 ParseNodeVector pnv=pn.getChild("not").getChildren();
97 ParseNode left=pnv.elementAt(0);
98 return new FlagOpNode(parseFlagExpression(left), new Operation(Operation.LOGIC_NOT));
100 } else if (pn.getChild("name")!=null) {
101 return new FlagNode(pn.getChild("name").getTerminal());
102 } else throw new Error();
105 public void parseParameterList(TaskDescriptor td, ParseNode pn) {
106 ParseNode paramlist=pn.getChild("task_parameter_list");
109 ParseNodeVector pnv=paramlist.getChildren();
110 for(int i=0;i<pnv.size();i++) {
111 ParseNode paramn=pnv.elementAt(i);
112 TypeDescriptor type=parseTypeDescriptor(paramn);
114 ParseNode tmp=paramn;
115 while (tmp.getChild("single")==null) {
116 type=type.makeArray(state);
117 tmp=tmp.getChild("array");
119 String paramname=tmp.getChild("single").getTerminal();
120 FlagExpressionNode fen=parseFlagExpression(paramn.getChild("flag"));
122 td.addParameter(type,paramname,fen);
126 public ClassDescriptor parseTypeDecl(ParseNode pn) {
127 ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal());
128 if (!isEmpty(pn.getChild("super").getTerminal())) {
129 /* parse superclass name */
130 ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
131 NameDescriptor nd=parseName(snn);
132 cn.setSuper(nd.toString());
134 if (!cn.getSymbol().equals(TypeUtil.ObjectClass))
135 cn.setSuper(TypeUtil.ObjectClass);
137 cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
138 parseClassBody(cn, pn.getChild("classbody"));
142 private void parseClassBody(ClassDescriptor cn, ParseNode pn) {
143 ParseNode decls=pn.getChild("class_body_declaration_list");
145 ParseNodeVector pnv=decls.getChildren();
146 for(int i=0;i<pnv.size();i++) {
147 ParseNode decl=pnv.elementAt(i);
148 if (isNode(decl,"member")) {
149 parseClassMember(cn,decl);
150 } else if (isNode(decl,"constructor")) {
151 parseConstructorDecl(cn,decl.getChild("constructor_declaration"));
152 } else if (isNode(decl,"block")) {
153 } else throw new Error();
158 private void parseClassMember(ClassDescriptor cn, ParseNode pn) {
159 ParseNode fieldnode=pn.getChild("field");
161 if (fieldnode!=null) {
162 parseFieldDecl(cn,fieldnode.getChild("field_declaration"));
165 ParseNode methodnode=pn.getChild("method");
166 if (methodnode!=null) {
167 parseMethodDecl(cn,methodnode.getChild("method_declaration"));
170 ParseNode flagnode=pn.getChild("flag");
171 if (flagnode!=null) {
172 parseFlagDecl(cn, flagnode.getChild("flag_declaration"));
177 private TypeDescriptor parseTypeDescriptor(ParseNode pn) {
178 ParseNode tn=pn.getChild("type");
180 String type_st=tn.getTerminal();
181 if(type_st.equals("byte")) {
182 return state.getTypeDescriptor(TypeDescriptor.BYTE);
183 } else if(type_st.equals("short")) {
184 return state.getTypeDescriptor(TypeDescriptor.SHORT);
185 } else if(type_st.equals("boolean")) {
186 return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
187 } else if(type_st.equals("int")) {
188 return state.getTypeDescriptor(TypeDescriptor.INT);
189 } else if(type_st.equals("long")) {
190 return state.getTypeDescriptor(TypeDescriptor.LONG);
191 } else if(type_st.equals("char")) {
192 return state.getTypeDescriptor(TypeDescriptor.CHAR);
193 } else if(type_st.equals("float")) {
194 return state.getTypeDescriptor(TypeDescriptor.FLOAT);
195 } else if(type_st.equals("double")) {
196 return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
197 } else if(type_st.equals("class")) {
198 ParseNode nn=tn.getChild("class");
199 return state.getTypeDescriptor(parseName(nn.getChild("name")));
200 } else if(type_st.equals("array")) {
201 ParseNode nn=tn.getChild("array");
202 TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
203 Integer numdims=(Integer)nn.getChild("dims").getLiteral();
204 for(int i=0;i<numdims.intValue();i++)
205 td=td.makeArray(state);
212 private NameDescriptor parseName(ParseNode nn) {
213 ParseNode base=nn.getChild("base");
214 ParseNode id=nn.getChild("identifier");
216 return new NameDescriptor(id.getTerminal());
217 return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
221 private void parseFlagDecl(ClassDescriptor cn,ParseNode pn) {
222 String name=pn.getChild("name").getTerminal();
223 cn.addFlag(new FlagDescriptor(name));
226 private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
227 ParseNode mn=pn.getChild("modifier");
228 Modifiers m=parseModifiersList(mn);
230 ParseNode tn=pn.getChild("type");
231 TypeDescriptor t=parseTypeDescriptor(tn);
232 ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
233 ParseNodeVector pnv=vn.getChildren();
234 for(int i=0;i<pnv.size();i++) {
235 ParseNode vardecl=pnv.elementAt(i);
238 ParseNode tmp=vardecl;
239 TypeDescriptor arrayt=t;
240 while (tmp.getChild("single")==null) {
241 arrayt=arrayt.makeArray(state);
242 tmp=tmp.getChild("array");
244 String identifier=tmp.getChild("single").getTerminal();
246 ParseNode epn=vardecl.getChild("initializer");
248 ExpressionNode en=null;
250 en=parseExpression(epn.getFirstChild());
252 cn.addField(new FieldDescriptor(m,arrayt,identifier, en));
257 private ExpressionNode parseExpression(ParseNode pn) {
258 if (isNode(pn,"assignment"))
259 return parseAssignmentExpression(pn);
260 else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
261 isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
262 isNode(pn,"bitwise_and")||isNode(pn,"equal")||
263 isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
264 isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
265 isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
266 isNode(pn,"rightshift")||isNode(pn,"sub")||
267 isNode(pn,"add")||isNode(pn,"mult")||
268 isNode(pn,"div")||isNode(pn,"mod")) {
269 ParseNodeVector pnv=pn.getChildren();
270 ParseNode left=pnv.elementAt(0);
271 ParseNode right=pnv.elementAt(1);
272 Operation op=new Operation(pn.getLabel());
273 return new OpNode(parseExpression(left),parseExpression(right),op);
274 } else if (isNode(pn,"unaryplus")||
275 isNode(pn,"unaryminus")||
277 ParseNode left=pn.getFirstChild();
278 Operation op=new Operation(pn.getLabel());
279 return new OpNode(parseExpression(left),op);
280 } else if (isNode(pn,"postinc")||
281 isNode(pn,"postdec")) {
282 ParseNode left=pn.getFirstChild();
283 AssignOperation op=new AssignOperation(pn.getLabel());
284 return new AssignmentNode(parseExpression(left),null,op);
286 } else if (isNode(pn,"preinc")||
287 isNode(pn,"predec")) {
288 ParseNode left=pn.getFirstChild();
289 AssignOperation op=isNode(pn,"preinc")?new AssignOperation(AssignOperation.PLUSEQ):new AssignOperation(AssignOperation.MINUSEQ);
290 return new AssignmentNode(parseExpression(left),
291 new LiteralNode("integer",new Integer(1)),op);
292 } else if (isNode(pn,"literal")) {
293 String literaltype=pn.getTerminal();
294 ParseNode literalnode=pn.getChild(literaltype);
295 Object literal_obj=literalnode.getLiteral();
296 return new LiteralNode(literaltype, literal_obj);
297 } else if (isNode(pn,"createobject")) {
298 TypeDescriptor td=parseTypeDescriptor(pn);
299 Vector args=parseArgumentList(pn);
300 CreateObjectNode con=new CreateObjectNode(td);
301 for(int i=0;i<args.size();i++) {
302 con.addArgument((ExpressionNode)args.get(i));
304 /* Could have flag set here */
305 if (pn.getChild("flag_list")!=null) {
306 FlagEffects fe=new FlagEffects(null);
307 parseFlagEffect(fe, pn.getChild("flag_list"));
308 con.addFlagEffects(fe);
311 } else if (isNode(pn,"createarray")) {
312 System.out.println(pn.PPrint(3,true));
313 TypeDescriptor td=parseTypeDescriptor(pn);
314 Vector args=parseDimExprs(pn);
316 if (pn.getChild("dims_opt").getLiteral()!=null)
317 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
318 for(int i=0;i<(args.size()+num);i++)
319 td=td.makeArray(state);
320 CreateObjectNode con=new CreateObjectNode(td);
321 for(int i=0;i<args.size();i++) {
322 con.addArgument((ExpressionNode)args.get(i));
325 } else if (isNode(pn,"name")) {
326 NameDescriptor nd=parseName(pn);
327 return new NameNode(nd);
328 } else if (isNode(pn,"this")) {
329 NameDescriptor nd=new NameDescriptor("this");
330 return new NameNode(nd);
331 } else if (isNode(pn,"methodinvoke1")) {
332 NameDescriptor nd=parseName(pn.getChild("name"));
333 Vector args=parseArgumentList(pn);
334 MethodInvokeNode min=new MethodInvokeNode(nd);
335 for(int i=0;i<args.size();i++) {
336 min.addArgument((ExpressionNode)args.get(i));
339 } else if (isNode(pn,"methodinvoke2")) {
340 String methodid=pn.getChild("id").getTerminal();
341 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
342 Vector args=parseArgumentList(pn);
343 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
344 for(int i=0;i<args.size();i++) {
345 min.addArgument((ExpressionNode)args.get(i));
348 } else if (isNode(pn,"fieldaccess")) {
349 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild()); String fieldname=pn.getChild("field").getTerminal();
350 return new FieldAccessNode(en,fieldname);
351 } else if (isNode(pn,"arrayaccess")) {
352 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
353 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
354 return new ArrayAccessNode(en,index);
355 } else if (isNode(pn,"cast1")) {
356 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
357 } else if (isNode(pn,"cast2")) {
358 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
360 System.out.println("---------------------");
361 System.out.println(pn.PPrint(3,true));
366 private Vector parseDimExprs(ParseNode pn) {
367 Vector arglist=new Vector();
368 ParseNode an=pn.getChild("dim_exprs");
369 if (an==null) /* No argument list */
371 ParseNodeVector anv=an.getChildren();
372 for(int i=0;i<anv.size();i++) {
373 arglist.add(parseExpression(anv.elementAt(i)));
378 private Vector parseArgumentList(ParseNode pn) {
379 Vector arglist=new Vector();
380 ParseNode an=pn.getChild("argument_list");
381 if (an==null) /* No argument list */
383 ParseNodeVector anv=an.getChildren();
384 for(int i=0;i<anv.size();i++) {
385 arglist.add(parseExpression(anv.elementAt(i)));
390 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
391 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
392 ParseNodeVector pnv=pn.getChild("args").getChildren();
394 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
399 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
400 ParseNode headern=pn.getChild("method_header");
401 ParseNode bodyn=pn.getChild("body");
402 MethodDescriptor md=parseMethodHeader(headern);
403 BlockNode bn=parseBlock(bodyn);
405 state.addTreeCode(md,bn);
408 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
409 ParseNode mn=pn.getChild("modifiers");
410 Modifiers m=parseModifiersList(mn);
411 ParseNode cdecl=pn.getChild("constructor_declarator");
412 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
413 MethodDescriptor md=new MethodDescriptor(m, name);
414 ParseNode paramnode=cdecl.getChild("parameters");
415 parseParameterList(md,paramnode);
416 ParseNode bodyn0=pn.getChild("body");
417 ParseNode bodyn=bodyn0.getChild("constructor_body");
420 BlockNode bn=parseBlock(bodyn);
421 state.addTreeCode(md,bn);
425 public BlockNode parseBlock(ParseNode pn) {
426 if (isEmpty(pn.getTerminal()))
427 return new BlockNode();
428 ParseNode bsn=pn.getChild("block_statement_list");
429 return parseBlockHelper(bsn);
432 private BlockNode parseBlockHelper(ParseNode pn) {
433 ParseNodeVector pnv=pn.getChildren();
434 BlockNode bn=new BlockNode();
435 for(int i=0;i<pnv.size();i++) {
436 Vector bsv=parseBlockStatement(pnv.elementAt(i));
437 for(int j=0;j<bsv.size();j++) {
438 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
444 public BlockNode parseSingleBlock(ParseNode pn) {
445 BlockNode bn=new BlockNode();
446 Vector bsv=parseBlockStatement(pn);
447 for(int j=0;j<bsv.size();j++) {
448 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
450 bn.setStyle(BlockNode.NOBRACES);
454 public Vector parseBlockStatement(ParseNode pn) {
455 Vector blockstatements=new Vector();
456 if (isNode(pn,"local_variable_declaration")) {
457 TypeDescriptor t=parseTypeDescriptor(pn);
458 ParseNode vn=pn.getChild("variable_declarators_list");
459 ParseNodeVector pnv=vn.getChildren();
460 for(int i=0;i<pnv.size();i++) {
461 ParseNode vardecl=pnv.elementAt(i);
464 ParseNode tmp=vardecl;
465 TypeDescriptor arrayt=t;
466 while (tmp.getChild("single")==null) {
467 arrayt=arrayt.makeArray(state);
468 tmp=tmp.getChild("array");
470 String identifier=tmp.getChild("single").getTerminal();
472 ParseNode epn=vardecl.getChild("initializer");
475 ExpressionNode en=null;
477 en=parseExpression(epn.getFirstChild());
479 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
481 } else if (isNode(pn,"nop")) {
483 } else if (isNode(pn,"expression")) {
484 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
485 } else if (isNode(pn,"ifstatement")) {
486 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
487 parseSingleBlock(pn.getChild("statement").getFirstChild()),
488 pn.getChild("else_statement")!=null?parseSingleBlock(pn.getChild("else_statement").getFirstChild()):null));
489 } else if (isNode(pn,"taskexit")) {
491 if (pn.getChild("flag_effects_list")!=null)
492 vfe=parseFlags(pn.getChild("flag_effects_list"));
493 blockstatements.add(new TaskExitNode(vfe));
494 } else if (isNode(pn,"return")) {
495 if (isEmpty(pn.getTerminal()))
496 blockstatements.add(new ReturnNode());
498 ExpressionNode en=parseExpression(pn.getFirstChild());
499 blockstatements.add(new ReturnNode(en));
501 } else if (isNode(pn,"block_statement_list")) {
502 BlockNode bn=parseBlockHelper(pn);
503 blockstatements.add(new SubBlockNode(bn));
504 } else if (isNode(pn,"empty")) {
506 } else if (isNode(pn,"statement_expression_list")) {
507 ParseNodeVector pnv=pn.getChildren();
508 BlockNode bn=new BlockNode();
509 for(int i=0;i<pnv.size();i++) {
510 ExpressionNode en=parseExpression(pnv.elementAt(i));
511 blockstatements.add(new BlockExpressionNode(en));
513 bn.setStyle(BlockNode.EXPRLIST);
514 } else if (isNode(pn,"forstatement")) {
515 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
516 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
517 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
518 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
519 blockstatements.add(new LoopNode(init,condition,update,body));
520 } else if (isNode(pn,"whilestatement")) {
521 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
522 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
523 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
524 } else if (isNode(pn,"dowhilestatement")) {
525 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
526 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
527 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
529 System.out.println("---------------");
530 System.out.println(pn.PPrint(3,true));
533 return blockstatements;
536 public MethodDescriptor parseMethodHeader(ParseNode pn) {
537 ParseNode mn=pn.getChild("modifiers");
538 Modifiers m=parseModifiersList(mn);
540 ParseNode tn=pn.getChild("returntype");
541 TypeDescriptor returntype;
543 returntype=parseTypeDescriptor(tn);
545 returntype=new TypeDescriptor(TypeDescriptor.VOID);
547 ParseNode pmd=pn.getChild("method_declarator");
548 String name=pmd.getChild("name").getTerminal();
549 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
551 ParseNode paramnode=pmd.getChild("parameters");
552 parseParameterList(md,paramnode);
556 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
557 ParseNode paramlist=pn.getChild("formal_parameter_list");
560 ParseNodeVector pnv=paramlist.getChildren();
561 for(int i=0;i<pnv.size();i++) {
562 ParseNode paramn=pnv.elementAt(i);
563 TypeDescriptor type=parseTypeDescriptor(paramn);
565 ParseNode tmp=paramn;
566 while (tmp.getChild("single")==null) {
567 type=type.makeArray(state);
568 tmp=tmp.getChild("array");
570 String paramname=tmp.getChild("single").getTerminal();
572 md.addParameter(type,paramname);
576 public Modifiers parseModifiersList(ParseNode pn) {
577 Modifiers m=new Modifiers();
578 ParseNode modlist=pn.getChild("modifier_list");
580 ParseNodeVector pnv=modlist.getChildren();
581 for(int i=0;i<pnv.size();i++) {
582 ParseNode modn=pnv.elementAt(i);
583 if (isNode(modn,"public"))
584 m.addModifier(Modifiers.PUBLIC);
585 if (isNode(modn,"protected"))
586 m.addModifier(Modifiers.PROTECTED);
587 if (isNode(modn,"private"))
588 m.addModifier(Modifiers.PRIVATE);
589 if (isNode(modn,"static"))
590 m.addModifier(Modifiers.STATIC);
591 if (isNode(modn,"final"))
592 m.addModifier(Modifiers.FINAL);
593 if (isNode(modn,"native"))
594 m.addModifier(Modifiers.NATIVE);
600 private boolean isNode(ParseNode pn, String label) {
601 if (pn.getLabel().equals(label))
606 private static boolean isEmpty(ParseNode pn) {
607 if (pn.getLabel().equals("empty"))
613 private static boolean isEmpty(String s) {
614 if (s.equals("empty"))
620 /** Throw an exception if something is unexpected */
621 private void check(ParseNode pn, String label) {
623 throw new Error(pn+ "IE: Expected '" + label + "', got null");
625 if (! pn.getLabel().equals(label)) {
626 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");