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")||
276 isNode(pn,"postinc")||
277 isNode(pn,"postdec")||
278 isNode(pn,"preinc")||
280 isNode(pn,"predec")) {
281 ParseNode left=pn.getFirstChild();
282 Operation op=new Operation(pn.getLabel());
283 return new OpNode(parseExpression(left),op);
284 } else if (isNode(pn,"literal")) {
285 String literaltype=pn.getTerminal();
286 ParseNode literalnode=pn.getChild(literaltype);
287 Object literal_obj=literalnode.getLiteral();
288 return new LiteralNode(literaltype, literal_obj);
289 } else if (isNode(pn,"createobject")) {
290 TypeDescriptor td=parseTypeDescriptor(pn);
291 Vector args=parseArgumentList(pn);
292 CreateObjectNode con=new CreateObjectNode(td);
293 for(int i=0;i<args.size();i++) {
294 con.addArgument((ExpressionNode)args.get(i));
296 /* Could have flag set here */
297 if (pn.getChild("flag_list")!=null) {
298 FlagEffects fe=new FlagEffects(null);
299 parseFlagEffect(fe, pn.getChild("flag_list"));
300 con.addFlagEffects(fe);
303 } else if (isNode(pn,"createarray")) {
304 System.out.println(pn.PPrint(3,true));
305 TypeDescriptor td=parseTypeDescriptor(pn);
306 Vector args=parseDimExprs(pn);
308 if (pn.getChild("dims_opt").getLiteral()!=null)
309 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
310 for(int i=0;i<(args.size()+num);i++)
311 td=td.makeArray(state);
312 CreateObjectNode con=new CreateObjectNode(td);
313 for(int i=0;i<args.size();i++) {
314 con.addArgument((ExpressionNode)args.get(i));
317 } else if (isNode(pn,"name")) {
318 NameDescriptor nd=parseName(pn);
319 return new NameNode(nd);
320 } else if (isNode(pn,"this")) {
321 NameDescriptor nd=new NameDescriptor("this");
322 return new NameNode(nd);
323 } else if (isNode(pn,"methodinvoke1")) {
324 NameDescriptor nd=parseName(pn.getChild("name"));
325 Vector args=parseArgumentList(pn);
326 MethodInvokeNode min=new MethodInvokeNode(nd);
327 for(int i=0;i<args.size();i++) {
328 min.addArgument((ExpressionNode)args.get(i));
331 } else if (isNode(pn,"methodinvoke2")) {
332 String methodid=pn.getChild("id").getTerminal();
333 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
334 Vector args=parseArgumentList(pn);
335 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
336 for(int i=0;i<args.size();i++) {
337 min.addArgument((ExpressionNode)args.get(i));
340 } else if (isNode(pn,"fieldaccess")) {
341 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild()); String fieldname=pn.getChild("field").getTerminal();
342 return new FieldAccessNode(en,fieldname);
343 } else if (isNode(pn,"arrayaccess")) {
344 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
345 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
346 return new ArrayAccessNode(en,index);
347 } else if (isNode(pn,"cast1")) {
348 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
349 } else if (isNode(pn,"cast2")) {
350 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
352 System.out.println("---------------------");
353 System.out.println(pn.PPrint(3,true));
358 private Vector parseDimExprs(ParseNode pn) {
359 Vector arglist=new Vector();
360 ParseNode an=pn.getChild("dim_exprs");
361 if (an==null) /* No argument list */
363 ParseNodeVector anv=an.getChildren();
364 for(int i=0;i<anv.size();i++) {
365 arglist.add(parseExpression(anv.elementAt(i)));
370 private Vector parseArgumentList(ParseNode pn) {
371 Vector arglist=new Vector();
372 ParseNode an=pn.getChild("argument_list");
373 if (an==null) /* No argument list */
375 ParseNodeVector anv=an.getChildren();
376 for(int i=0;i<anv.size();i++) {
377 arglist.add(parseExpression(anv.elementAt(i)));
382 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
383 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
384 ParseNodeVector pnv=pn.getChild("args").getChildren();
386 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
391 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
392 ParseNode headern=pn.getChild("method_header");
393 ParseNode bodyn=pn.getChild("body");
394 MethodDescriptor md=parseMethodHeader(headern);
395 BlockNode bn=parseBlock(bodyn);
397 state.addTreeCode(md,bn);
400 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
401 ParseNode mn=pn.getChild("modifiers");
402 Modifiers m=parseModifiersList(mn);
403 ParseNode cdecl=pn.getChild("constructor_declarator");
404 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
405 MethodDescriptor md=new MethodDescriptor(m, name);
406 ParseNode paramnode=cdecl.getChild("parameters");
407 parseParameterList(md,paramnode);
408 ParseNode bodyn0=pn.getChild("body");
409 ParseNode bodyn=bodyn0.getChild("constructor_body");
412 BlockNode bn=parseBlock(bodyn);
413 state.addTreeCode(md,bn);
417 public BlockNode parseBlock(ParseNode pn) {
418 if (isEmpty(pn.getTerminal()))
419 return new BlockNode();
420 ParseNode bsn=pn.getChild("block_statement_list");
421 return parseBlockHelper(bsn);
424 private BlockNode parseBlockHelper(ParseNode pn) {
425 ParseNodeVector pnv=pn.getChildren();
426 BlockNode bn=new BlockNode();
427 for(int i=0;i<pnv.size();i++) {
428 Vector bsv=parseBlockStatement(pnv.elementAt(i));
429 for(int j=0;j<bsv.size();j++) {
430 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
436 public BlockNode parseSingleBlock(ParseNode pn) {
437 BlockNode bn=new BlockNode();
438 Vector bsv=parseBlockStatement(pn);
439 for(int j=0;j<bsv.size();j++) {
440 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
442 bn.setStyle(BlockNode.NOBRACES);
446 public Vector parseBlockStatement(ParseNode pn) {
447 Vector blockstatements=new Vector();
448 if (isNode(pn,"local_variable_declaration")) {
449 TypeDescriptor t=parseTypeDescriptor(pn);
450 ParseNode vn=pn.getChild("variable_declarators_list");
451 ParseNodeVector pnv=vn.getChildren();
452 for(int i=0;i<pnv.size();i++) {
453 ParseNode vardecl=pnv.elementAt(i);
456 ParseNode tmp=vardecl;
457 TypeDescriptor arrayt=t;
458 while (tmp.getChild("single")==null) {
459 arrayt=arrayt.makeArray(state);
460 tmp=tmp.getChild("array");
462 String identifier=tmp.getChild("single").getTerminal();
464 ParseNode epn=vardecl.getChild("initializer");
467 ExpressionNode en=null;
469 en=parseExpression(epn.getFirstChild());
471 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
473 } else if (isNode(pn,"nop")) {
475 } else if (isNode(pn,"expression")) {
476 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
477 } else if (isNode(pn,"ifstatement")) {
478 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
479 parseSingleBlock(pn.getChild("statement").getFirstChild()),
480 pn.getChild("else_statement")!=null?parseSingleBlock(pn.getChild("else_statement").getFirstChild()):null));
481 } else if (isNode(pn,"taskexit")) {
483 if (pn.getChild("flag_effects_list")!=null)
484 vfe=parseFlags(pn.getChild("flag_effects_list"));
485 blockstatements.add(new TaskExitNode(vfe));
486 } else if (isNode(pn,"return")) {
487 if (isEmpty(pn.getTerminal()))
488 blockstatements.add(new ReturnNode());
490 ExpressionNode en=parseExpression(pn.getFirstChild());
491 blockstatements.add(new ReturnNode(en));
493 } else if (isNode(pn,"block_statement_list")) {
494 BlockNode bn=parseBlockHelper(pn);
495 blockstatements.add(new SubBlockNode(bn));
496 } else if (isNode(pn,"empty")) {
498 } else if (isNode(pn,"statement_expression_list")) {
499 ParseNodeVector pnv=pn.getChildren();
500 BlockNode bn=new BlockNode();
501 for(int i=0;i<pnv.size();i++) {
502 ExpressionNode en=parseExpression(pnv.elementAt(i));
503 blockstatements.add(new BlockExpressionNode(en));
505 bn.setStyle(BlockNode.EXPRLIST);
506 } else if (isNode(pn,"forstatement")) {
507 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
508 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
509 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
510 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
511 blockstatements.add(new LoopNode(init,condition,update,body));
512 } else if (isNode(pn,"whilestatement")) {
513 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
514 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
515 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
516 } else if (isNode(pn,"dowhilestatement")) {
517 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
518 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
519 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
521 System.out.println("---------------");
522 System.out.println(pn.PPrint(3,true));
525 return blockstatements;
528 public MethodDescriptor parseMethodHeader(ParseNode pn) {
529 ParseNode mn=pn.getChild("modifiers");
530 Modifiers m=parseModifiersList(mn);
532 ParseNode tn=pn.getChild("returntype");
533 TypeDescriptor returntype;
535 returntype=parseTypeDescriptor(tn);
537 returntype=new TypeDescriptor(TypeDescriptor.VOID);
539 ParseNode pmd=pn.getChild("method_declarator");
540 String name=pmd.getChild("name").getTerminal();
541 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
543 ParseNode paramnode=pmd.getChild("parameters");
544 parseParameterList(md,paramnode);
548 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
549 ParseNode paramlist=pn.getChild("formal_parameter_list");
552 ParseNodeVector pnv=paramlist.getChildren();
553 for(int i=0;i<pnv.size();i++) {
554 ParseNode paramn=pnv.elementAt(i);
555 TypeDescriptor type=parseTypeDescriptor(paramn);
557 ParseNode tmp=paramn;
558 while (tmp.getChild("single")==null) {
559 type=type.makeArray(state);
560 tmp=tmp.getChild("array");
562 String paramname=tmp.getChild("single").getTerminal();
564 md.addParameter(type,paramname);
568 public Modifiers parseModifiersList(ParseNode pn) {
569 Modifiers m=new Modifiers();
570 ParseNode modlist=pn.getChild("modifier_list");
572 ParseNodeVector pnv=modlist.getChildren();
573 for(int i=0;i<pnv.size();i++) {
574 ParseNode modn=pnv.elementAt(i);
575 if (isNode(modn,"public"))
576 m.addModifier(Modifiers.PUBLIC);
577 if (isNode(modn,"protected"))
578 m.addModifier(Modifiers.PROTECTED);
579 if (isNode(modn,"private"))
580 m.addModifier(Modifiers.PRIVATE);
581 if (isNode(modn,"static"))
582 m.addModifier(Modifiers.STATIC);
583 if (isNode(modn,"final"))
584 m.addModifier(Modifiers.FINAL);
585 if (isNode(modn,"native"))
586 m.addModifier(Modifiers.NATIVE);
592 private boolean isNode(ParseNode pn, String label) {
593 if (pn.getLabel().equals(label))
598 private static boolean isEmpty(ParseNode pn) {
599 if (pn.getLabel().equals("empty"))
605 private static boolean isEmpty(String s) {
606 if (s.equals("empty"))
612 /** Throw an exception if something is unexpected */
613 private void check(ParseNode pn, String label) {
615 throw new Error(pn+ "IE: Expected '" + label + "', got null");
617 if (! pn.getLabel().equals(label)) {
618 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");