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());
41 ParseNode bodyn=pn.getChild("body");
42 BlockNode bn=parseBlock(bodyn);
43 parseParameterList(td, pn);
44 state.addTreeCode(td,bn);
49 public void parseParameterList(TaskDescriptor td, ParseNode pn) {
50 ParseNode paramlist=pn.getChild("task_parameter_list");
53 ParseNodeVector pnv=paramlist.getChildren();
54 for(int i=0;i<pnv.size();i++) {
55 ParseNode paramn=pnv.elementAt(i);
56 TypeDescriptor type=parseTypeDescriptor(paramn);
59 while (tmp.getChild("single")==null) {
60 type=type.makeArray(state);
61 tmp=tmp.getChild("array");
63 String paramname=tmp.getChild("single").getTerminal();
66 td.addParameter(type,paramname);
70 public ClassDescriptor parseTypeDecl(ParseNode pn) {
71 ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal());
72 if (!isEmpty(pn.getChild("super").getTerminal())) {
73 /* parse superclass name */
74 ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
75 NameDescriptor nd=parseName(snn);
76 cn.setSuper(nd.toString());
78 if (!cn.getSymbol().equals(TypeUtil.ObjectClass))
79 cn.setSuper(TypeUtil.ObjectClass);
81 cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
82 parseClassBody(cn, pn.getChild("classbody"));
86 private void parseClassBody(ClassDescriptor cn, ParseNode pn) {
87 ParseNode decls=pn.getChild("class_body_declaration_list");
89 ParseNodeVector pnv=decls.getChildren();
90 for(int i=0;i<pnv.size();i++) {
91 ParseNode decl=pnv.elementAt(i);
92 if (isNode(decl,"member")) {
93 parseClassMember(cn,decl);
94 } else if (isNode(decl,"constructor")) {
95 parseConstructorDecl(cn,decl.getChild("constructor_declaration"));
96 } else if (isNode(decl,"block")) {
97 } else throw new Error();
102 private void parseClassMember(ClassDescriptor cn, ParseNode pn) {
103 ParseNode fieldnode=pn.getChild("field");
105 if (fieldnode!=null) {
106 parseFieldDecl(cn,fieldnode.getChild("field_declaration"));
109 ParseNode methodnode=pn.getChild("method");
110 if (methodnode!=null) {
111 parseMethodDecl(cn,methodnode.getChild("method_declaration"));
117 private TypeDescriptor parseTypeDescriptor(ParseNode pn) {
118 ParseNode tn=pn.getChild("type");
119 String type_st=tn.getTerminal();
120 if(type_st.equals("byte")) {
121 return state.getTypeDescriptor(TypeDescriptor.BYTE);
122 } else if(type_st.equals("short")) {
123 return state.getTypeDescriptor(TypeDescriptor.SHORT);
124 } else if(type_st.equals("boolean")) {
125 return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
126 } else if(type_st.equals("int")) {
127 return state.getTypeDescriptor(TypeDescriptor.INT);
128 } else if(type_st.equals("long")) {
129 return state.getTypeDescriptor(TypeDescriptor.LONG);
130 } else if(type_st.equals("char")) {
131 return state.getTypeDescriptor(TypeDescriptor.CHAR);
132 } else if(type_st.equals("float")) {
133 return state.getTypeDescriptor(TypeDescriptor.FLOAT);
134 } else if(type_st.equals("double")) {
135 return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
136 } else if(type_st.equals("class")) {
137 ParseNode nn=tn.getChild("class");
138 return state.getTypeDescriptor(parseName(nn.getChild("name")));
139 } else if(type_st.equals("array")) {
140 ParseNode nn=tn.getChild("array");
141 TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
142 Integer numdims=(Integer)nn.getChild("dims").getLiteral();
143 for(int i=0;i<numdims.intValue();i++)
144 td=td.makeArray(state);
151 private NameDescriptor parseName(ParseNode nn) {
152 ParseNode base=nn.getChild("base");
153 ParseNode id=nn.getChild("identifier");
155 return new NameDescriptor(id.getTerminal());
156 return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
160 private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
161 ParseNode mn=pn.getChild("modifier");
162 Modifiers m=parseModifiersList(mn);
164 ParseNode tn=pn.getChild("type");
165 TypeDescriptor t=parseTypeDescriptor(tn);
166 ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
167 ParseNodeVector pnv=vn.getChildren();
168 for(int i=0;i<pnv.size();i++) {
169 ParseNode vardecl=pnv.elementAt(i);
172 ParseNode tmp=vardecl;
173 TypeDescriptor arrayt=t;
174 while (tmp.getChild("single")==null) {
175 arrayt=arrayt.makeArray(state);
176 tmp=tmp.getChild("array");
178 String identifier=tmp.getChild("single").getTerminal();
180 ParseNode epn=vardecl.getChild("initializer");
182 ExpressionNode en=null;
184 en=parseExpression(epn.getFirstChild());
186 cn.addField(new FieldDescriptor(m,arrayt,identifier, en));
191 private ExpressionNode parseExpression(ParseNode pn) {
192 if (isNode(pn,"assignment"))
193 return parseAssignmentExpression(pn);
194 else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
195 isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
196 isNode(pn,"bitwise_and")||isNode(pn,"equal")||
197 isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
198 isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
199 isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
200 isNode(pn,"rightshift")||isNode(pn,"sub")||
201 isNode(pn,"add")||isNode(pn,"mult")||
202 isNode(pn,"div")||isNode(pn,"mod")) {
203 ParseNodeVector pnv=pn.getChildren();
204 ParseNode left=pnv.elementAt(0);
205 ParseNode right=pnv.elementAt(1);
206 Operation op=new Operation(pn.getLabel());
207 return new OpNode(parseExpression(left),parseExpression(right),op);
208 } else if (isNode(pn,"unaryplus")||
209 isNode(pn,"unaryminus")||
210 isNode(pn,"postinc")||
211 isNode(pn,"postdec")||
212 isNode(pn,"preinc")||
213 isNode(pn,"predec")) {
214 ParseNode left=pn.getFirstChild();
215 Operation op=new Operation(pn.getLabel());
216 return new OpNode(parseExpression(left),op);
217 } else if (isNode(pn,"literal")) {
218 String literaltype=pn.getTerminal();
219 ParseNode literalnode=pn.getChild(literaltype);
220 Object literal_obj=literalnode.getLiteral();
221 return new LiteralNode(literaltype, literal_obj);
222 } else if (isNode(pn,"createobject")) {
223 TypeDescriptor td=parseTypeDescriptor(pn);
224 Vector args=parseArgumentList(pn);
225 CreateObjectNode con=new CreateObjectNode(td);
226 for(int i=0;i<args.size();i++) {
227 con.addArgument((ExpressionNode)args.get(i));
230 } else if (isNode(pn,"createarray")) {
231 System.out.println(pn.PPrint(3,true));
232 TypeDescriptor td=parseTypeDescriptor(pn);
233 Vector args=parseDimExprs(pn);
235 if (pn.getChild("dims_opt").getLiteral()!=null)
236 num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
237 for(int i=0;i<(args.size()+num);i++)
238 td=td.makeArray(state);
239 CreateObjectNode con=new CreateObjectNode(td);
240 for(int i=0;i<args.size();i++) {
241 con.addArgument((ExpressionNode)args.get(i));
244 } else if (isNode(pn,"name")) {
245 NameDescriptor nd=parseName(pn);
246 return new NameNode(nd);
247 } else if (isNode(pn,"this")) {
248 NameDescriptor nd=new NameDescriptor("this");
249 return new NameNode(nd);
250 } else if (isNode(pn,"methodinvoke1")) {
251 NameDescriptor nd=parseName(pn.getChild("name"));
252 Vector args=parseArgumentList(pn);
253 MethodInvokeNode min=new MethodInvokeNode(nd);
254 for(int i=0;i<args.size();i++) {
255 min.addArgument((ExpressionNode)args.get(i));
258 } else if (isNode(pn,"methodinvoke2")) {
259 String methodid=pn.getChild("id").getTerminal();
260 ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
261 Vector args=parseArgumentList(pn);
262 MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
263 for(int i=0;i<args.size();i++) {
264 min.addArgument((ExpressionNode)args.get(i));
267 } else if (isNode(pn,"fieldaccess")) {
268 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild()); String fieldname=pn.getChild("field").getTerminal();
269 return new FieldAccessNode(en,fieldname);
270 } else if (isNode(pn,"arrayaccess")) {
271 ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
272 ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
273 return new ArrayAccessNode(en,index);
274 } else if (isNode(pn,"cast1")) {
275 return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
276 } else if (isNode(pn,"cast2")) {
277 return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
279 System.out.println("---------------------");
280 System.out.println(pn.PPrint(3,true));
285 private Vector parseDimExprs(ParseNode pn) {
286 Vector arglist=new Vector();
287 ParseNode an=pn.getChild("dim_exprs");
288 if (an==null) /* No argument list */
290 ParseNodeVector anv=an.getChildren();
291 for(int i=0;i<anv.size();i++) {
292 arglist.add(parseExpression(anv.elementAt(i)));
297 private Vector parseArgumentList(ParseNode pn) {
298 Vector arglist=new Vector();
299 ParseNode an=pn.getChild("argument_list");
300 if (an==null) /* No argument list */
302 ParseNodeVector anv=an.getChildren();
303 for(int i=0;i<anv.size();i++) {
304 arglist.add(parseExpression(anv.elementAt(i)));
309 private ExpressionNode parseAssignmentExpression(ParseNode pn) {
310 AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
311 ParseNodeVector pnv=pn.getChild("args").getChildren();
313 AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
318 private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
319 ParseNode headern=pn.getChild("method_header");
320 ParseNode bodyn=pn.getChild("body");
321 MethodDescriptor md=parseMethodHeader(headern);
322 BlockNode bn=parseBlock(bodyn);
324 state.addTreeCode(md,bn);
327 private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
328 ParseNode mn=pn.getChild("modifiers");
329 Modifiers m=parseModifiersList(mn);
330 ParseNode cdecl=pn.getChild("constructor_declarator");
331 String name=cdecl.getChild("name").getChild("identifier").getTerminal();
332 MethodDescriptor md=new MethodDescriptor(m, name);
333 ParseNode paramnode=cdecl.getChild("parameters");
334 parseParameterList(md,paramnode);
335 ParseNode bodyn0=pn.getChild("body");
336 ParseNode bodyn=bodyn0.getChild("constructor_body");
339 BlockNode bn=parseBlock(bodyn);
340 state.addTreeCode(md,bn);
344 public BlockNode parseBlock(ParseNode pn) {
345 if (isEmpty(pn.getTerminal()))
346 return new BlockNode();
347 ParseNode bsn=pn.getChild("block_statement_list");
348 return parseBlockHelper(bsn);
351 private BlockNode parseBlockHelper(ParseNode pn) {
352 ParseNodeVector pnv=pn.getChildren();
353 BlockNode bn=new BlockNode();
354 for(int i=0;i<pnv.size();i++) {
355 Vector bsv=parseBlockStatement(pnv.elementAt(i));
356 for(int j=0;j<bsv.size();j++) {
357 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
363 public BlockNode parseSingleBlock(ParseNode pn) {
364 BlockNode bn=new BlockNode();
365 Vector bsv=parseBlockStatement(pn);
366 for(int j=0;j<bsv.size();j++) {
367 bn.addBlockStatement((BlockStatementNode)bsv.get(j));
369 bn.setStyle(BlockNode.NOBRACES);
373 public Vector parseBlockStatement(ParseNode pn) {
374 Vector blockstatements=new Vector();
375 if (isNode(pn,"local_variable_declaration")) {
376 TypeDescriptor t=parseTypeDescriptor(pn);
377 ParseNode vn=pn.getChild("variable_declarators_list");
378 ParseNodeVector pnv=vn.getChildren();
379 for(int i=0;i<pnv.size();i++) {
380 ParseNode vardecl=pnv.elementAt(i);
383 ParseNode tmp=vardecl;
384 TypeDescriptor arrayt=t;
385 while (tmp.getChild("single")==null) {
386 arrayt=arrayt.makeArray(state);
387 tmp=tmp.getChild("array");
389 String identifier=tmp.getChild("single").getTerminal();
391 ParseNode epn=vardecl.getChild("initializer");
394 ExpressionNode en=null;
396 en=parseExpression(epn.getFirstChild());
398 blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
400 } else if (isNode(pn,"nop")) {
402 } else if (isNode(pn,"expression")) {
403 blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
404 } else if (isNode(pn,"ifstatement")) {
405 blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
406 parseSingleBlock(pn.getChild("statement").getFirstChild()),
407 pn.getChild("else_statement")!=null?parseSingleBlock(pn.getChild("else_statement").getFirstChild()):null));
408 } else if (isNode(pn,"return")) {
409 if (isEmpty(pn.getTerminal()))
410 blockstatements.add(new ReturnNode());
412 ExpressionNode en=parseExpression(pn.getFirstChild());
413 blockstatements.add(new ReturnNode(en));
415 } else if (isNode(pn,"block_statement_list")) {
416 BlockNode bn=parseBlockHelper(pn);
417 blockstatements.add(new SubBlockNode(bn));
418 } else if (isNode(pn,"empty")) {
420 } else if (isNode(pn,"statement_expression_list")) {
421 ParseNodeVector pnv=pn.getChildren();
422 BlockNode bn=new BlockNode();
423 for(int i=0;i<pnv.size();i++) {
424 ExpressionNode en=parseExpression(pnv.elementAt(i));
425 blockstatements.add(new BlockExpressionNode(en));
427 bn.setStyle(BlockNode.EXPRLIST);
428 } else if (isNode(pn,"forstatement")) {
429 BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
430 BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
431 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
432 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
433 blockstatements.add(new LoopNode(init,condition,update,body));
434 } else if (isNode(pn,"whilestatement")) {
435 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
436 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
437 blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
438 } else if (isNode(pn,"dowhilestatement")) {
439 ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
440 BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
441 blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
443 System.out.println("---------------");
444 System.out.println(pn.PPrint(3,true));
447 return blockstatements;
450 public MethodDescriptor parseMethodHeader(ParseNode pn) {
451 ParseNode mn=pn.getChild("modifiers");
452 Modifiers m=parseModifiersList(mn);
454 ParseNode tn=pn.getChild("returntype");
455 TypeDescriptor returntype;
457 returntype=parseTypeDescriptor(tn);
459 returntype=new TypeDescriptor(TypeDescriptor.VOID);
461 ParseNode pmd=pn.getChild("method_declarator");
462 String name=pmd.getChild("name").getTerminal();
463 MethodDescriptor md=new MethodDescriptor(m, returntype, name);
465 ParseNode paramnode=pmd.getChild("parameters");
466 parseParameterList(md,paramnode);
470 public void parseParameterList(MethodDescriptor md, ParseNode pn) {
471 ParseNode paramlist=pn.getChild("formal_parameter_list");
474 ParseNodeVector pnv=paramlist.getChildren();
475 for(int i=0;i<pnv.size();i++) {
476 ParseNode paramn=pnv.elementAt(i);
477 TypeDescriptor type=parseTypeDescriptor(paramn);
479 ParseNode tmp=paramn;
480 while (tmp.getChild("single")==null) {
481 type=type.makeArray(state);
482 tmp=tmp.getChild("array");
484 String paramname=tmp.getChild("single").getTerminal();
486 md.addParameter(type,paramname);
490 public Modifiers parseModifiersList(ParseNode pn) {
491 Modifiers m=new Modifiers();
492 ParseNode modlist=pn.getChild("modifier_list");
494 ParseNodeVector pnv=modlist.getChildren();
495 for(int i=0;i<pnv.size();i++) {
496 ParseNode modn=pnv.elementAt(i);
497 if (isNode(modn,"public"))
498 m.addModifier(Modifiers.PUBLIC);
499 if (isNode(modn,"protected"))
500 m.addModifier(Modifiers.PROTECTED);
501 if (isNode(modn,"private"))
502 m.addModifier(Modifiers.PRIVATE);
503 if (isNode(modn,"static"))
504 m.addModifier(Modifiers.STATIC);
505 if (isNode(modn,"final"))
506 m.addModifier(Modifiers.FINAL);
507 if (isNode(modn,"native"))
508 m.addModifier(Modifiers.NATIVE);
514 private boolean isNode(ParseNode pn, String label) {
515 if (pn.getLabel().equals(label))
520 private static boolean isEmpty(ParseNode pn) {
521 if (pn.getLabel().equals("empty"))
527 private static boolean isEmpty(String s) {
528 if (s.equals("empty"))
534 /** Throw an exception if something is unexpected */
535 private void check(ParseNode pn, String label) {
537 throw new Error(pn+ "IE: Expected '" + label + "', got null");
539 if (! pn.getLabel().equals(label)) {
540 throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");