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);
38 public TaskDescriptor parseTaskDecl(ParseNode pn) {
39 TaskDescriptor td=new TaskDescriptor(pn.getChild("name").getTerminal());
40 ParseNode bodyn=pn.getChild("body");
41 BlockNode bn=parseBlock(bodyn);
42 parseParameterList(td, pn);
43 state.addTreeCode(td,bn);
44 if (pn.getChild("flag_effects_list")!=null)
45 td.addFlagEffects(parseFlagEffects(pn.getChild("flag_effects_list")));
49 public FlagEffects parseFlagEffects(ParseNode pn) {
53 public FlagExpressionNode parseFlagExpression(ParseNode pn) {
54 if (pn.getChild("or")!=null) {
55 ParseNodeVector pnv=pn.getChild("or").getChildren();
56 ParseNode left=pnv.elementAt(0);
57 ParseNode right=pnv.elementAt(1);
58 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_OR));
59 } else if (pn.getChild("and")!=null) {
60 ParseNodeVector pnv=pn.getChild("and").getChildren();
61 ParseNode left=pnv.elementAt(0);
62 ParseNode right=pnv.elementAt(1);
63 return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_AND));
64 } else if (pn.getChild("not")!=null) {
65 ParseNodeVector pnv=pn.getChild("not").getChildren();
66 ParseNode left=pnv.elementAt(0);
67 return new FlagOpNode(parseFlagExpression(left), new Operation(Operation.LOGIC_NOT));
69 } else if (pn.getChild("name")!=null) {
70 return new FlagNode(pn.getChild("name").getTerminal());
71 } else throw new Error();
74 public void parseParameterList(TaskDescriptor td, ParseNode pn) {
75 ParseNode paramlist=pn.getChild("task_parameter_list");
78 ParseNodeVector pnv=paramlist.getChildren();
79 for(int i=0;i<pnv.size();i++) {
80 ParseNode paramn=pnv.elementAt(i);
81 TypeDescriptor type=parseTypeDescriptor(paramn);
84 while (tmp.getChild("single")==null) {
85 type=type.makeArray(state);
86 tmp=tmp.getChild("array");
88 String paramname=tmp.getChild("single").getTerminal();
89 FlagExpressionNode fen=parseFlagExpression(paramn.getChild("flag"));
91 td.addParameter(type,paramname,fen);
95 public ClassDescriptor parseTypeDecl(ParseNode pn) {
96 ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal());
97 if (!isEmpty(pn.getChild("super").getTerminal())) {
98 /* parse superclass name */
99 ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
100 NameDescriptor nd=parseName(snn);
101 cn.setSuper(nd.toString());
103 if (!cn.getSymbol().equals(TypeUtil.ObjectClass))
104 cn.setSuper(TypeUtil.ObjectClass);
106 cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
107 parseClassBody(cn, pn.getChild("classbody"));
111 private void parseClassBody(ClassDescriptor cn, ParseNode pn) {
112 ParseNode decls=pn.getChild("class_body_declaration_list");
114 ParseNodeVector pnv=decls.getChildren();
115 for(int i=0;i<pnv.size();i++) {
116 ParseNode decl=pnv.elementAt(i);
117 if (isNode(decl,"member")) {
118 parseClassMember(cn,decl);
119 } else if (isNode(decl,"constructor")) {
120 parseConstructorDecl(cn,decl.getChild("constructor_declaration"));
121 } else if (isNode(decl,"block")) {
122 } else throw new Error();
127 private void parseClassMember(ClassDescriptor cn, ParseNode pn) {
128 ParseNode fieldnode=pn.getChild("field");
130 if (fieldnode!=null) {
131 parseFieldDecl(cn,fieldnode.getChild("field_declaration"));
134 ParseNode methodnode=pn.getChild("method");
135 if (methodnode!=null) {
136 parseMethodDecl(cn,methodnode.getChild("method_declaration"));
142 private TypeDescriptor parseTypeDescriptor(ParseNode pn) {
143 ParseNode tn=pn.getChild("type");
144 String type_st=tn.getTerminal();
145 if(type_st.equals("byte")) {
146 return state.getTypeDescriptor(TypeDescriptor.BYTE);
147 } else if(type_st.equals("short")) {
148 return state.getTypeDescriptor(TypeDescriptor.SHORT);
149 } else if(type_st.equals("boolean")) {
150 return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
151 } else if(type_st.equals("int")) {
152 return state.getTypeDescriptor(TypeDescriptor.INT);
153 } else if(type_st.equals("long")) {
154 return state.getTypeDescriptor(TypeDescriptor.LONG);
155 } else if(type_st.equals("char")) {
156 return state.getTypeDescriptor(TypeDescriptor.CHAR);
157 } else if(type_st.equals("float")) {
158 return state.getTypeDescriptor(TypeDescriptor.FLOAT);
159 } else if(type_st.equals("double")) {
160 return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
161 } else if(type_st.equals("class")) {
162 ParseNode nn=tn.getChild("class");
163 return state.getTypeDescriptor(parseName(nn.getChild("name")));
164 } else if(type_st.equals("array")) {
165 ParseNode nn=tn.getChild("array");
166 TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
167 Integer numdims=(Integer)nn.getChild("dims").getLiteral();
168 for(int i=0;i<numdims.intValue();i++)
169 td=td.makeArray(state);
176 private NameDescriptor parseName(ParseNode nn) {
177 ParseNode base=nn.getChild("base");
178 ParseNode id=nn.getChild("identifier");
180 return new NameDescriptor(id.getTerminal());
181 return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
185 private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
186 ParseNode mn=pn.getChild("modifier");
187 Modifiers m=parseModifiersList(mn);
189 ParseNode tn=pn.getChild("type");
190 TypeDescriptor t=parseTypeDescriptor(tn);
191 ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
192 ParseNodeVector pnv=vn.getChildren();
193 for(int i=0;i<pnv.size();i++) {
194 ParseNode vardecl=pnv.elementAt(i);
197 ParseNode tmp=vardecl;
198 TypeDescriptor arrayt=t;
199 while (tmp.getChild("single")==null) {
200 arrayt=arrayt.makeArray(state);
201 tmp=tmp.getChild("array");
203 String identifier=tmp.getChild("single").getTerminal();
205 ParseNode epn=vardecl.getChild("initializer");
207 ExpressionNode en=null;
209 en=parseExpression(epn.getFirstChild());
211 cn.addField(new FieldDescriptor(m,arrayt,identifier, en));
216 private ExpressionNode parseExpression(ParseNode pn) {
217 if (isNode(pn,"assignment"))
218 return parseAssignmentExpression(pn);
219 else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
220 isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
221 isNode(pn,"bitwise_and")||isNode(pn,"equal")||
222 isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
223 isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
224 isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
225 isNode(pn,"rightshift")||isNode(pn,"sub")||
226 isNode(pn,"add")||isNode(pn,"mult")||
227 isNode(pn,"div")||isNode(pn,"mod")) {
228 ParseNodeVector pnv=pn.getChildren();
229 ParseNode left=pnv.elementAt(0);
230 ParseNode right=pnv.elementAt(1);
231 Operation op=new Operation(pn.getLabel());
232 return new OpNode(parseExpression(left),parseExpression(right),op);
233 } else if (isNode(pn,"unaryplus")||
234 isNode(pn,"unaryminus")||
235 isNode(pn,"postinc")||
236 isNode(pn,"postdec")||
237 isNode(pn,"preinc")||
239 isNode(pn,"predec")) {
240 ParseNode left=pn.getFirstChild();
241 Operation op=new Operation(pn.getLabel());
242 return new OpNode(parseExpression(left),op);
243 } else if (isNode(pn,"literal")) {
244 String literaltype=pn.getTerminal();
245 ParseNode literalnode=pn.getChild(literaltype);
246 Object literal_obj=literalnode.getLiteral();
247 return new LiteralNode(literaltype, literal_obj);
248 } else if (isNode(pn,"createobject")) {
249 TypeDescriptor td=parseTypeDescriptor(pn);
250 Vector args=parseArgumentList(pn);
251 CreateObjectNode con=new CreateObjectNode(td);
252 for(int i=0;i<args.size();i++) {
253 con.addArgument((ExpressionNode)args.get(i));
256 } else if (isNode(pn,"createarray")) {
257 System.out.println(pn.PPrint(3,true));
258 TypeDescriptor td=parseTypeDescriptor(pn);
259 Vector args=parseDimExprs(pn);
261 if (pn.getChild("dims_opt").getLiteral()!=null)
262 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
263 for(int i=0;i<(args.size()+num);i++)
264 td=td.makeArray(state);
265 CreateObjectNode con=new CreateObjectNode(td);
266 for(int i=0;i<args.size();i++) {
267 con.addArgument((ExpressionNode)args.get(i));
270 } else if (isNode(pn,"name")) {
271 NameDescriptor nd=parseName(pn);
272 return new NameNode(nd);
273 } else if (isNode(pn,"this")) {
274 NameDescriptor nd=new NameDescriptor("this");
275 return new NameNode(nd);
276 } else if (isNode(pn,"methodinvoke1")) {
277 NameDescriptor nd=parseName(pn.getChild("name"));
278 Vector args=parseArgumentList(pn);
279 MethodInvokeNode min=new MethodInvokeNode(nd);
280 for(int i=0;i<args.size();i++) {
281 min.addArgument((ExpressionNode)args.get(i));
284 } else if (isNode(pn,"methodinvoke2")) {
285 String methodid=pn.getChild("id").getTerminal();
286 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
287 Vector args=parseArgumentList(pn);
288 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
289 for(int i=0;i<args.size();i++) {
290 min.addArgument((ExpressionNode)args.get(i));
293 } else if (isNode(pn,"fieldaccess")) {
294 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild()); String fieldname=pn.getChild("field").getTerminal();
295 return new FieldAccessNode(en,fieldname);
296 } else if (isNode(pn,"arrayaccess")) {
297 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
298 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
299 return new ArrayAccessNode(en,index);
300 } else if (isNode(pn,"cast1")) {
301 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
302 } else if (isNode(pn,"cast2")) {
303 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
305 System.out.println("---------------------");
306 System.out.println(pn.PPrint(3,true));
311 private Vector parseDimExprs(ParseNode pn) {
312 Vector arglist=new Vector();
313 ParseNode an=pn.getChild("dim_exprs");
314 if (an==null) /* No argument list */
316 ParseNodeVector anv=an.getChildren();
317 for(int i=0;i<anv.size();i++) {
318 arglist.add(parseExpression(anv.elementAt(i)));
323 private Vector parseArgumentList(ParseNode pn) {
324 Vector arglist=new Vector();
325 ParseNode an=pn.getChild("argument_list");
326 if (an==null) /* No argument list */
328 ParseNodeVector anv=an.getChildren();
329 for(int i=0;i<anv.size();i++) {
330 arglist.add(parseExpression(anv.elementAt(i)));
335 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
336 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
337 ParseNodeVector pnv=pn.getChild("args").getChildren();
339 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
344 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
345 ParseNode headern=pn.getChild("method_header");
346 ParseNode bodyn=pn.getChild("body");
347 MethodDescriptor md=parseMethodHeader(headern);
348 BlockNode bn=parseBlock(bodyn);
350 state.addTreeCode(md,bn);
353 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
354 ParseNode mn=pn.getChild("modifiers");
355 Modifiers m=parseModifiersList(mn);
356 ParseNode cdecl=pn.getChild("constructor_declarator");
357 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
358 MethodDescriptor md=new MethodDescriptor(m, name);
359 ParseNode paramnode=cdecl.getChild("parameters");
360 parseParameterList(md,paramnode);
361 ParseNode bodyn0=pn.getChild("body");
362 ParseNode bodyn=bodyn0.getChild("constructor_body");
365 BlockNode bn=parseBlock(bodyn);
366 state.addTreeCode(md,bn);
370 public BlockNode parseBlock(ParseNode pn) {
371 if (isEmpty(pn.getTerminal()))
372 return new BlockNode();
373 ParseNode bsn=pn.getChild("block_statement_list");
374 return parseBlockHelper(bsn);
377 private BlockNode parseBlockHelper(ParseNode pn) {
378 ParseNodeVector pnv=pn.getChildren();
379 BlockNode bn=new BlockNode();
380 for(int i=0;i<pnv.size();i++) {
381 Vector bsv=parseBlockStatement(pnv.elementAt(i));
382 for(int j=0;j<bsv.size();j++) {
383 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
389 public BlockNode parseSingleBlock(ParseNode pn) {
390 BlockNode bn=new BlockNode();
391 Vector bsv=parseBlockStatement(pn);
392 for(int j=0;j<bsv.size();j++) {
393 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
395 bn.setStyle(BlockNode.NOBRACES);
399 public Vector parseBlockStatement(ParseNode pn) {
400 Vector blockstatements=new Vector();
401 if (isNode(pn,"local_variable_declaration")) {
402 TypeDescriptor t=parseTypeDescriptor(pn);
403 ParseNode vn=pn.getChild("variable_declarators_list");
404 ParseNodeVector pnv=vn.getChildren();
405 for(int i=0;i<pnv.size();i++) {
406 ParseNode vardecl=pnv.elementAt(i);
409 ParseNode tmp=vardecl;
410 TypeDescriptor arrayt=t;
411 while (tmp.getChild("single")==null) {
412 arrayt=arrayt.makeArray(state);
413 tmp=tmp.getChild("array");
415 String identifier=tmp.getChild("single").getTerminal();
417 ParseNode epn=vardecl.getChild("initializer");
420 ExpressionNode en=null;
422 en=parseExpression(epn.getFirstChild());
424 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
426 } else if (isNode(pn,"nop")) {
428 } else if (isNode(pn,"expression")) {
429 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
430 } else if (isNode(pn,"ifstatement")) {
431 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
432 parseSingleBlock(pn.getChild("statement").getFirstChild()),
433 pn.getChild("else_statement")!=null?parseSingleBlock(pn.getChild("else_statement").getFirstChild()):null));
434 } else if (isNode(pn,"taskexit")) {
436 if (pn.getChild("flag_effects_list")!=null)
437 fe=parseFlagEffects(pn.getChild("flag_effects_list"));
438 blockstatements.add(new TaskExitNode(fe));
439 } else if (isNode(pn,"return")) {
440 if (isEmpty(pn.getTerminal()))
441 blockstatements.add(new ReturnNode());
443 ExpressionNode en=parseExpression(pn.getFirstChild());
444 blockstatements.add(new ReturnNode(en));
446 } else if (isNode(pn,"block_statement_list")) {
447 BlockNode bn=parseBlockHelper(pn);
448 blockstatements.add(new SubBlockNode(bn));
449 } else if (isNode(pn,"empty")) {
451 } else if (isNode(pn,"statement_expression_list")) {
452 ParseNodeVector pnv=pn.getChildren();
453 BlockNode bn=new BlockNode();
454 for(int i=0;i<pnv.size();i++) {
455 ExpressionNode en=parseExpression(pnv.elementAt(i));
456 blockstatements.add(new BlockExpressionNode(en));
458 bn.setStyle(BlockNode.EXPRLIST);
459 } else if (isNode(pn,"forstatement")) {
460 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
461 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
462 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
463 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
464 blockstatements.add(new LoopNode(init,condition,update,body));
465 } else if (isNode(pn,"whilestatement")) {
466 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
467 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
468 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
469 } else if (isNode(pn,"dowhilestatement")) {
470 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
471 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
472 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
474 System.out.println("---------------");
475 System.out.println(pn.PPrint(3,true));
478 return blockstatements;
481 public MethodDescriptor parseMethodHeader(ParseNode pn) {
482 ParseNode mn=pn.getChild("modifiers");
483 Modifiers m=parseModifiersList(mn);
485 ParseNode tn=pn.getChild("returntype");
486 TypeDescriptor returntype;
488 returntype=parseTypeDescriptor(tn);
490 returntype=new TypeDescriptor(TypeDescriptor.VOID);
492 ParseNode pmd=pn.getChild("method_declarator");
493 String name=pmd.getChild("name").getTerminal();
494 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
496 ParseNode paramnode=pmd.getChild("parameters");
497 parseParameterList(md,paramnode);
501 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
502 ParseNode paramlist=pn.getChild("formal_parameter_list");
505 ParseNodeVector pnv=paramlist.getChildren();
506 for(int i=0;i<pnv.size();i++) {
507 ParseNode paramn=pnv.elementAt(i);
508 TypeDescriptor type=parseTypeDescriptor(paramn);
510 ParseNode tmp=paramn;
511 while (tmp.getChild("single")==null) {
512 type=type.makeArray(state);
513 tmp=tmp.getChild("array");
515 String paramname=tmp.getChild("single").getTerminal();
517 md.addParameter(type,paramname);
521 public Modifiers parseModifiersList(ParseNode pn) {
522 Modifiers m=new Modifiers();
523 ParseNode modlist=pn.getChild("modifier_list");
525 ParseNodeVector pnv=modlist.getChildren();
526 for(int i=0;i<pnv.size();i++) {
527 ParseNode modn=pnv.elementAt(i);
528 if (isNode(modn,"public"))
529 m.addModifier(Modifiers.PUBLIC);
530 if (isNode(modn,"protected"))
531 m.addModifier(Modifiers.PROTECTED);
532 if (isNode(modn,"private"))
533 m.addModifier(Modifiers.PRIVATE);
534 if (isNode(modn,"static"))
535 m.addModifier(Modifiers.STATIC);
536 if (isNode(modn,"final"))
537 m.addModifier(Modifiers.FINAL);
538 if (isNode(modn,"native"))
539 m.addModifier(Modifiers.NATIVE);
545 private boolean isNode(ParseNode pn, String label) {
546 if (pn.getLabel().equals(label))
551 private static boolean isEmpty(ParseNode pn) {
552 if (pn.getLabel().equals("empty"))
558 private static boolean isEmpty(String s) {
559 if (s.equals("empty"))
565 /** Throw an exception if something is unexpected */
566 private void check(ParseNode pn, String label) {
568 throw new Error(pn+ "IE: Expected '" + label + "', got null");
570 if (! pn.getLabel().equals(label)) {
571 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");