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");
179 String type_st=tn.getTerminal();
180 if(type_st.equals("byte")) {
181 return state.getTypeDescriptor(TypeDescriptor.BYTE);
182 } else if(type_st.equals("short")) {
183 return state.getTypeDescriptor(TypeDescriptor.SHORT);
184 } else if(type_st.equals("boolean")) {
185 return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
186 } else if(type_st.equals("int")) {
187 return state.getTypeDescriptor(TypeDescriptor.INT);
188 } else if(type_st.equals("long")) {
189 return state.getTypeDescriptor(TypeDescriptor.LONG);
190 } else if(type_st.equals("char")) {
191 return state.getTypeDescriptor(TypeDescriptor.CHAR);
192 } else if(type_st.equals("float")) {
193 return state.getTypeDescriptor(TypeDescriptor.FLOAT);
194 } else if(type_st.equals("double")) {
195 return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
196 } else if(type_st.equals("class")) {
197 ParseNode nn=tn.getChild("class");
198 return state.getTypeDescriptor(parseName(nn.getChild("name")));
199 } else if(type_st.equals("array")) {
200 ParseNode nn=tn.getChild("array");
201 TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
202 Integer numdims=(Integer)nn.getChild("dims").getLiteral();
203 for(int i=0;i<numdims.intValue();i++)
204 td=td.makeArray(state);
211 private NameDescriptor parseName(ParseNode nn) {
212 ParseNode base=nn.getChild("base");
213 ParseNode id=nn.getChild("identifier");
215 return new NameDescriptor(id.getTerminal());
216 return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
220 private void parseFlagDecl(ClassDescriptor cn,ParseNode pn) {
221 String name=pn.getChild("name").getTerminal();
222 cn.addFlag(new FlagDescriptor(name));
225 private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
226 ParseNode mn=pn.getChild("modifier");
227 Modifiers m=parseModifiersList(mn);
229 ParseNode tn=pn.getChild("type");
230 TypeDescriptor t=parseTypeDescriptor(tn);
231 ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
232 ParseNodeVector pnv=vn.getChildren();
233 for(int i=0;i<pnv.size();i++) {
234 ParseNode vardecl=pnv.elementAt(i);
237 ParseNode tmp=vardecl;
238 TypeDescriptor arrayt=t;
239 while (tmp.getChild("single")==null) {
240 arrayt=arrayt.makeArray(state);
241 tmp=tmp.getChild("array");
243 String identifier=tmp.getChild("single").getTerminal();
245 ParseNode epn=vardecl.getChild("initializer");
247 ExpressionNode en=null;
249 en=parseExpression(epn.getFirstChild());
251 cn.addField(new FieldDescriptor(m,arrayt,identifier, en));
256 private ExpressionNode parseExpression(ParseNode pn) {
257 if (isNode(pn,"assignment"))
258 return parseAssignmentExpression(pn);
259 else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
260 isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
261 isNode(pn,"bitwise_and")||isNode(pn,"equal")||
262 isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
263 isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
264 isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
265 isNode(pn,"rightshift")||isNode(pn,"sub")||
266 isNode(pn,"add")||isNode(pn,"mult")||
267 isNode(pn,"div")||isNode(pn,"mod")) {
268 ParseNodeVector pnv=pn.getChildren();
269 ParseNode left=pnv.elementAt(0);
270 ParseNode right=pnv.elementAt(1);
271 Operation op=new Operation(pn.getLabel());
272 return new OpNode(parseExpression(left),parseExpression(right),op);
273 } else if (isNode(pn,"unaryplus")||
274 isNode(pn,"unaryminus")||
275 isNode(pn,"postinc")||
276 isNode(pn,"postdec")||
277 isNode(pn,"preinc")||
279 isNode(pn,"predec")) {
280 ParseNode left=pn.getFirstChild();
281 Operation op=new Operation(pn.getLabel());
282 return new OpNode(parseExpression(left),op);
283 } else if (isNode(pn,"literal")) {
284 String literaltype=pn.getTerminal();
285 ParseNode literalnode=pn.getChild(literaltype);
286 Object literal_obj=literalnode.getLiteral();
287 return new LiteralNode(literaltype, literal_obj);
288 } else if (isNode(pn,"createobject")) {
289 TypeDescriptor td=parseTypeDescriptor(pn);
290 Vector args=parseArgumentList(pn);
291 CreateObjectNode con=new CreateObjectNode(td);
292 for(int i=0;i<args.size();i++) {
293 con.addArgument((ExpressionNode)args.get(i));
296 } else if (isNode(pn,"createarray")) {
297 System.out.println(pn.PPrint(3,true));
298 TypeDescriptor td=parseTypeDescriptor(pn);
299 Vector args=parseDimExprs(pn);
301 if (pn.getChild("dims_opt").getLiteral()!=null)
302 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
303 for(int i=0;i<(args.size()+num);i++)
304 td=td.makeArray(state);
305 CreateObjectNode con=new CreateObjectNode(td);
306 for(int i=0;i<args.size();i++) {
307 con.addArgument((ExpressionNode)args.get(i));
310 } else if (isNode(pn,"name")) {
311 NameDescriptor nd=parseName(pn);
312 return new NameNode(nd);
313 } else if (isNode(pn,"this")) {
314 NameDescriptor nd=new NameDescriptor("this");
315 return new NameNode(nd);
316 } else if (isNode(pn,"methodinvoke1")) {
317 NameDescriptor nd=parseName(pn.getChild("name"));
318 Vector args=parseArgumentList(pn);
319 MethodInvokeNode min=new MethodInvokeNode(nd);
320 for(int i=0;i<args.size();i++) {
321 min.addArgument((ExpressionNode)args.get(i));
324 } else if (isNode(pn,"methodinvoke2")) {
325 String methodid=pn.getChild("id").getTerminal();
326 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
327 Vector args=parseArgumentList(pn);
328 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
329 for(int i=0;i<args.size();i++) {
330 min.addArgument((ExpressionNode)args.get(i));
333 } else if (isNode(pn,"fieldaccess")) {
334 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild()); String fieldname=pn.getChild("field").getTerminal();
335 return new FieldAccessNode(en,fieldname);
336 } else if (isNode(pn,"arrayaccess")) {
337 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
338 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
339 return new ArrayAccessNode(en,index);
340 } else if (isNode(pn,"cast1")) {
341 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
342 } else if (isNode(pn,"cast2")) {
343 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
345 System.out.println("---------------------");
346 System.out.println(pn.PPrint(3,true));
351 private Vector parseDimExprs(ParseNode pn) {
352 Vector arglist=new Vector();
353 ParseNode an=pn.getChild("dim_exprs");
354 if (an==null) /* No argument list */
356 ParseNodeVector anv=an.getChildren();
357 for(int i=0;i<anv.size();i++) {
358 arglist.add(parseExpression(anv.elementAt(i)));
363 private Vector parseArgumentList(ParseNode pn) {
364 Vector arglist=new Vector();
365 ParseNode an=pn.getChild("argument_list");
366 if (an==null) /* No argument list */
368 ParseNodeVector anv=an.getChildren();
369 for(int i=0;i<anv.size();i++) {
370 arglist.add(parseExpression(anv.elementAt(i)));
375 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
376 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
377 ParseNodeVector pnv=pn.getChild("args").getChildren();
379 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
384 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
385 ParseNode headern=pn.getChild("method_header");
386 ParseNode bodyn=pn.getChild("body");
387 MethodDescriptor md=parseMethodHeader(headern);
388 BlockNode bn=parseBlock(bodyn);
390 state.addTreeCode(md,bn);
393 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
394 ParseNode mn=pn.getChild("modifiers");
395 Modifiers m=parseModifiersList(mn);
396 ParseNode cdecl=pn.getChild("constructor_declarator");
397 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
398 MethodDescriptor md=new MethodDescriptor(m, name);
399 ParseNode paramnode=cdecl.getChild("parameters");
400 parseParameterList(md,paramnode);
401 ParseNode bodyn0=pn.getChild("body");
402 ParseNode bodyn=bodyn0.getChild("constructor_body");
405 BlockNode bn=parseBlock(bodyn);
406 state.addTreeCode(md,bn);
410 public BlockNode parseBlock(ParseNode pn) {
411 if (isEmpty(pn.getTerminal()))
412 return new BlockNode();
413 ParseNode bsn=pn.getChild("block_statement_list");
414 return parseBlockHelper(bsn);
417 private BlockNode parseBlockHelper(ParseNode pn) {
418 ParseNodeVector pnv=pn.getChildren();
419 BlockNode bn=new BlockNode();
420 for(int i=0;i<pnv.size();i++) {
421 Vector bsv=parseBlockStatement(pnv.elementAt(i));
422 for(int j=0;j<bsv.size();j++) {
423 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
429 public BlockNode parseSingleBlock(ParseNode pn) {
430 BlockNode bn=new BlockNode();
431 Vector bsv=parseBlockStatement(pn);
432 for(int j=0;j<bsv.size();j++) {
433 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
435 bn.setStyle(BlockNode.NOBRACES);
439 public Vector parseBlockStatement(ParseNode pn) {
440 Vector blockstatements=new Vector();
441 if (isNode(pn,"local_variable_declaration")) {
442 TypeDescriptor t=parseTypeDescriptor(pn);
443 ParseNode vn=pn.getChild("variable_declarators_list");
444 ParseNodeVector pnv=vn.getChildren();
445 for(int i=0;i<pnv.size();i++) {
446 ParseNode vardecl=pnv.elementAt(i);
449 ParseNode tmp=vardecl;
450 TypeDescriptor arrayt=t;
451 while (tmp.getChild("single")==null) {
452 arrayt=arrayt.makeArray(state);
453 tmp=tmp.getChild("array");
455 String identifier=tmp.getChild("single").getTerminal();
457 ParseNode epn=vardecl.getChild("initializer");
460 ExpressionNode en=null;
462 en=parseExpression(epn.getFirstChild());
464 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
466 } else if (isNode(pn,"nop")) {
468 } else if (isNode(pn,"expression")) {
469 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
470 } else if (isNode(pn,"ifstatement")) {
471 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
472 parseSingleBlock(pn.getChild("statement").getFirstChild()),
473 pn.getChild("else_statement")!=null?parseSingleBlock(pn.getChild("else_statement").getFirstChild()):null));
474 } else if (isNode(pn,"taskexit")) {
476 if (pn.getChild("flag_effects_list")!=null)
477 vfe=parseFlags(pn.getChild("flag_effects_list"));
478 blockstatements.add(new TaskExitNode(vfe));
479 } else if (isNode(pn,"return")) {
480 if (isEmpty(pn.getTerminal()))
481 blockstatements.add(new ReturnNode());
483 ExpressionNode en=parseExpression(pn.getFirstChild());
484 blockstatements.add(new ReturnNode(en));
486 } else if (isNode(pn,"block_statement_list")) {
487 BlockNode bn=parseBlockHelper(pn);
488 blockstatements.add(new SubBlockNode(bn));
489 } else if (isNode(pn,"empty")) {
491 } else if (isNode(pn,"statement_expression_list")) {
492 ParseNodeVector pnv=pn.getChildren();
493 BlockNode bn=new BlockNode();
494 for(int i=0;i<pnv.size();i++) {
495 ExpressionNode en=parseExpression(pnv.elementAt(i));
496 blockstatements.add(new BlockExpressionNode(en));
498 bn.setStyle(BlockNode.EXPRLIST);
499 } else if (isNode(pn,"forstatement")) {
500 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
501 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
502 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
503 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
504 blockstatements.add(new LoopNode(init,condition,update,body));
505 } else if (isNode(pn,"whilestatement")) {
506 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
507 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
508 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
509 } else if (isNode(pn,"dowhilestatement")) {
510 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
511 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
512 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
514 System.out.println("---------------");
515 System.out.println(pn.PPrint(3,true));
518 return blockstatements;
521 public MethodDescriptor parseMethodHeader(ParseNode pn) {
522 ParseNode mn=pn.getChild("modifiers");
523 Modifiers m=parseModifiersList(mn);
525 ParseNode tn=pn.getChild("returntype");
526 TypeDescriptor returntype;
528 returntype=parseTypeDescriptor(tn);
530 returntype=new TypeDescriptor(TypeDescriptor.VOID);
532 ParseNode pmd=pn.getChild("method_declarator");
533 String name=pmd.getChild("name").getTerminal();
534 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
536 ParseNode paramnode=pmd.getChild("parameters");
537 parseParameterList(md,paramnode);
541 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
542 ParseNode paramlist=pn.getChild("formal_parameter_list");
545 ParseNodeVector pnv=paramlist.getChildren();
546 for(int i=0;i<pnv.size();i++) {
547 ParseNode paramn=pnv.elementAt(i);
548 TypeDescriptor type=parseTypeDescriptor(paramn);
550 ParseNode tmp=paramn;
551 while (tmp.getChild("single")==null) {
552 type=type.makeArray(state);
553 tmp=tmp.getChild("array");
555 String paramname=tmp.getChild("single").getTerminal();
557 md.addParameter(type,paramname);
561 public Modifiers parseModifiersList(ParseNode pn) {
562 Modifiers m=new Modifiers();
563 ParseNode modlist=pn.getChild("modifier_list");
565 ParseNodeVector pnv=modlist.getChildren();
566 for(int i=0;i<pnv.size();i++) {
567 ParseNode modn=pnv.elementAt(i);
568 if (isNode(modn,"public"))
569 m.addModifier(Modifiers.PUBLIC);
570 if (isNode(modn,"protected"))
571 m.addModifier(Modifiers.PROTECTED);
572 if (isNode(modn,"private"))
573 m.addModifier(Modifiers.PRIVATE);
574 if (isNode(modn,"static"))
575 m.addModifier(Modifiers.STATIC);
576 if (isNode(modn,"final"))
577 m.addModifier(Modifiers.FINAL);
578 if (isNode(modn,"native"))
579 m.addModifier(Modifiers.NATIVE);
585 private boolean isNode(ParseNode pn, String label) {
586 if (pn.getLabel().equals(label))
591 private static boolean isEmpty(ParseNode pn) {
592 if (pn.getLabel().equals("empty"))
598 private static boolean isEmpty(String s) {
599 if (s.equals("empty"))
605 /** Throw an exception if something is unexpected */
606 private void check(ParseNode pn, String label) {
608 throw new Error(pn+ "IE: Expected '" + label + "', got null");
610 if (! pn.getLabel().equals(label)) {
611 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");