6 public class BuildCode {
13 String localsprefix="___locals___";
14 String paramsprefix="___params___";
15 public static boolean GENERATEPRECISEGC=false;
16 public static String PREFIX="";
17 public static String arraytype="ArrayObject";
22 public BuildCode(State st, Hashtable temptovar, TypeUtil typeutil) {
24 this.temptovar=temptovar;
25 paramstable=new Hashtable();
26 tempstable=new Hashtable();
27 fieldorder=new Hashtable();
28 this.typeutil=typeutil;
29 virtualcalls=new Virtual(state);
32 public void buildCode() {
33 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
34 PrintWriter outclassdefs=null;
35 PrintWriter outstructs=null;
36 PrintWriter outmethodheader=null;
37 PrintWriter outmethod=null;
38 PrintWriter outvirtual=null;
41 OutputStream str=new FileOutputStream(PREFIX+"structdefs.h");
42 outstructs=new java.io.PrintWriter(str, true);
43 str=new FileOutputStream(PREFIX+"methodheaders.h");
44 outmethodheader=new java.io.PrintWriter(str, true);
45 str=new FileOutputStream(PREFIX+"classdefs.h");
46 outclassdefs=new java.io.PrintWriter(str, true);
47 str=new FileOutputStream(PREFIX+"methods.c");
48 outmethod=new java.io.PrintWriter(str, true);
49 str=new FileOutputStream(PREFIX+"virtualtable.h");
50 outvirtual=new java.io.PrintWriter(str, true);
51 } catch (Exception e) {
56 buildVirtualTables(outvirtual);
57 outstructs.println("#include \"classdefs.h\"");
58 outmethodheader.println("#include \"structdefs.h\"");
60 /* Output types for short array and string */
61 outstructs.println("#define STRINGTYPE "+typeutil.getClass(TypeUtil.StringClass).getId());
62 outstructs.println("#define CHARARRAYTYPE "+
63 (state.getArrayNumber((new TypeDescriptor(TypeDescriptor.CHAR)).makeArray(state))+state.numClasses()));
65 // Output the C declarations
66 // These could mutually reference each other
67 outclassdefs.println("struct "+arraytype+";");
69 ClassDescriptor cn=(ClassDescriptor)it.next();
70 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
72 outclassdefs.println("");
74 //Print out definition for array type
75 outclassdefs.println("struct "+arraytype+" {");
76 outclassdefs.println(" int type;");
77 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
78 outclassdefs.println(" int ___length___;");
79 outclassdefs.println("};\n");
81 it=state.getClassSymbolTable().getDescriptorsIterator();
83 ClassDescriptor cn=(ClassDescriptor)it.next();
84 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
90 outmethodheader.close();
92 /* Build the actual methods */
93 outmethod.println("#include \"methodheaders.h\"");
94 outmethod.println("#include \"virtualtable.h\"");
95 outmethod.println("#include <runtime.h>");
97 outclassdefs.println("extern int classsize[];");
98 //Store the sizes of classes & array elements
99 generateSizeArray(outmethod);
101 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
102 while(classit.hasNext()) {
103 ClassDescriptor cn=(ClassDescriptor)classit.next();
104 Iterator methodit=cn.getMethods();
105 while(methodit.hasNext()) {
106 /* Classify parameters */
107 MethodDescriptor md=(MethodDescriptor)methodit.next();
108 FlatMethod fm=state.getMethodFlat(md);
109 if (!md.getModifiers().isNative())
110 generateFlatMethod(fm,outmethod);
113 if (state.main!=null) {
114 outmethod.println("int main(int argc, const char *argv[]) {");
115 ClassDescriptor cd=typeutil.getClass(state.main);
116 Set mainset=cd.getMethodTable().getSet("main");
117 for(Iterator mainit=mainset.iterator();mainit.hasNext();) {
118 MethodDescriptor md=(MethodDescriptor)mainit.next();
119 if (md.numParameters()!=0)
121 if (!md.getModifiers().isStatic())
122 throw new Error("Error: Non static main");
123 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"();");
126 outmethod.println("}");
131 private int maxcount=0;
133 private void buildVirtualTables(PrintWriter outvirtual) {
134 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
135 while(classit.hasNext()) {
136 ClassDescriptor cd=(ClassDescriptor)classit.next();
137 if (virtualcalls.getMethodCount(cd)>maxcount)
138 maxcount=virtualcalls.getMethodCount(cd);
140 MethodDescriptor[][] virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
142 /* Fill in virtual table */
143 classit=state.getClassSymbolTable().getDescriptorsIterator();
144 while(classit.hasNext()) {
145 ClassDescriptor cd=(ClassDescriptor)classit.next();
146 fillinRow(cd, virtualtable, cd.getId());
149 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
150 Iterator arrayit=state.getArrayIterator();
151 while(arrayit.hasNext()) {
152 TypeDescriptor td=(TypeDescriptor)arrayit.next();
153 int id=state.getArrayNumber(td);
154 fillinRow(objectcd, virtualtable, id+state.numClasses());
157 outvirtual.print("void * virtualtable[]={");
158 boolean needcomma=false;
159 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
160 for(int j=0;j<maxcount;j++) {
162 outvirtual.print(", ");
163 if (virtualtable[i][j]!=null) {
164 MethodDescriptor md=virtualtable[i][j];
165 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
167 outvirtual.print("0");
171 outvirtual.println("");
173 outvirtual.println("};");
177 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
178 /* Get inherited methods */
179 if (cd.getSuperDesc()!=null)
180 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
181 /* Override them with our methods */
182 for(Iterator it=cd.getMethods();it.hasNext();) {
183 MethodDescriptor md=(MethodDescriptor)it.next();
184 if (md.isStatic()||md.getReturnType()==null)
186 int methodnum=virtualcalls.getMethodNumber(md);
187 virtualtable[rownum][methodnum]=md;
191 private void generateSizeArray(PrintWriter outclassdefs) {
192 outclassdefs.print("int classsize[]={");
193 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
194 ClassDescriptor[] cdarray=new ClassDescriptor[state.numClasses()];
195 while(it.hasNext()) {
196 ClassDescriptor cd=(ClassDescriptor)it.next();
197 cdarray[cd.getId()]=cd;
199 boolean needcomma=false;
200 for(int i=0;i<state.numClasses();i++) {
202 outclassdefs.print(", ");
203 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
207 TypeDescriptor[] sizetable=new TypeDescriptor[state.numArrays()];
209 Iterator arrayit=state.getArrayIterator();
210 while(arrayit.hasNext()) {
211 TypeDescriptor td=(TypeDescriptor)arrayit.next();
212 int id=state.getArrayNumber(td);
216 for(int i=0;i<state.numArrays();i++) {
218 outclassdefs.print(", ");
219 TypeDescriptor tdelement=sizetable[i].dereference();
220 if (tdelement.isArray()||tdelement.isClass())
221 outclassdefs.print("sizeof(void *)");
223 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
227 outclassdefs.println("};");
230 private void generateTempStructs(FlatMethod fm) {
231 MethodDescriptor md=fm.getMethod();
232 ParamsObject objectparams=new ParamsObject(md,tag++);
233 paramstable.put(md, objectparams);
234 for(int i=0;i<fm.numParameters();i++) {
235 TempDescriptor temp=fm.getParameter(i);
236 TypeDescriptor type=temp.getType();
237 if (type.isPtr()&&GENERATEPRECISEGC)
238 objectparams.addPtr(temp);
240 objectparams.addPrim(temp);
243 TempObject objecttemps=new TempObject(objectparams,md,tag++);
244 tempstable.put(md, objecttemps);
245 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
246 FlatNode fn=(FlatNode)nodeit.next();
247 TempDescriptor[] writes=fn.writesTemps();
248 for(int i=0;i<writes.length;i++) {
249 TempDescriptor temp=writes[i];
250 TypeDescriptor type=temp.getType();
251 if (type.isPtr()&&GENERATEPRECISEGC)
252 objecttemps.addPtr(temp);
254 objecttemps.addPrim(temp);
259 /* Force consistent field ordering between inherited classes */
260 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
261 ClassDescriptor sp=cn.getSuperDesc();
263 printClassStruct(sp, classdefout);
265 if (!fieldorder.containsKey(cn)) {
266 Vector fields=new Vector();
267 fieldorder.put(cn,fields);
268 Iterator fieldit=cn.getFields();
269 while(fieldit.hasNext()) {
270 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
271 if (sp==null||!sp.getFieldTable().contains(fd.getSymbol()))
275 Vector fields=(Vector)fieldorder.get(cn);
277 for(int i=0;i<fields.size();i++) {
278 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
279 if (fd.getType().isClass()||fd.getType().isArray())
280 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
282 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
286 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
287 /* Output class structure */
288 classdefout.println("struct "+cn.getSafeSymbol()+" {");
289 classdefout.println(" int type;");
290 printClassStruct(cn, classdefout);
291 classdefout.println("};\n");
293 /* Cycle through methods */
294 Iterator methodit=cn.getMethods();
295 while(methodit.hasNext()) {
296 /* Classify parameters */
297 MethodDescriptor md=(MethodDescriptor)methodit.next();
298 FlatMethod fm=state.getMethodFlat(md);
299 generateTempStructs(fm);
301 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
302 TempObject objecttemps=(TempObject) tempstable.get(md);
304 /* Output parameter structure */
305 if (GENERATEPRECISEGC) {
306 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
307 output.println(" int type;");
308 output.println(" void * next;");
309 for(int i=0;i<objectparams.numPointers();i++) {
310 TempDescriptor temp=objectparams.getPointer(i);
311 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
313 output.println("};\n");
316 /* Output temp structure */
317 if (GENERATEPRECISEGC) {
318 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
319 output.println(" int type;");
320 output.println(" void * next;");
321 for(int i=0;i<objecttemps.numPointers();i++) {
322 TempDescriptor temp=objecttemps.getPointer(i);
323 if (temp.getType().isNull())
324 output.println(" void * "+temp.getSafeSymbol()+";");
326 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
328 output.println("};\n");
331 /* Output method declaration */
332 if (md.getReturnType()!=null) {
333 if (md.getReturnType().isClass()||md.getReturnType().isArray())
334 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
336 headersout.print(md.getReturnType().getSafeSymbol()+" ");
338 //catch the constructor case
339 headersout.print("void ");
340 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
342 boolean printcomma=false;
343 if (GENERATEPRECISEGC) {
344 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
348 for(int i=0;i<objectparams.numPrimitives();i++) {
349 TempDescriptor temp=objectparams.getPrimitive(i);
351 headersout.print(", ");
353 if (temp.getType().isClass()||temp.getType().isArray())
354 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
356 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
358 headersout.println(");\n");
362 private void generateFlatMethod(FlatMethod fm, PrintWriter output) {
363 MethodDescriptor md=fm.getMethod();
364 ClassDescriptor cn=md.getClassDesc();
365 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
367 generateHeader(md,output);
369 output.println(" {");
371 if (GENERATEPRECISEGC) {
372 output.println(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+";");
374 TempObject objecttemp=(TempObject) tempstable.get(md);
375 for(int i=0;i<objecttemp.numPrimitives();i++) {
376 TempDescriptor td=objecttemp.getPrimitive(i);
377 TypeDescriptor type=td.getType();
379 output.println(" void * "+td.getSafeSymbol()+";");
380 else if (type.isClass()||type.isArray())
381 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
383 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
387 /* Generate labels first */
388 HashSet tovisit=new HashSet();
389 HashSet visited=new HashSet();
391 Hashtable nodetolabel=new Hashtable();
392 tovisit.add(fm.methodEntryNode());
393 FlatNode current_node=null;
396 //Node needs a label if it is
397 while(!tovisit.isEmpty()) {
398 FlatNode fn=(FlatNode)tovisit.iterator().next();
401 for(int i=0;i<fn.numNext();i++) {
402 FlatNode nn=fn.getNext(i);
405 nodetolabel.put(nn,new Integer(labelindex++));
407 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
411 nodetolabel.put(nn,new Integer(labelindex++));
416 //Do the actual code generation
417 tovisit=new HashSet();
418 visited=new HashSet();
419 tovisit.add(fm.methodEntryNode());
420 while(current_node!=null||!tovisit.isEmpty()) {
421 if (current_node==null) {
422 current_node=(FlatNode)tovisit.iterator().next();
423 tovisit.remove(current_node);
425 visited.add(current_node);
426 if (nodetolabel.containsKey(current_node))
427 output.println("L"+nodetolabel.get(current_node)+":");
428 if (current_node.numNext()==0) {
430 generateFlatNode(fm, current_node, output);
431 if (current_node.kind()!=FKind.FlatReturnNode) {
432 output.println(" return;");
435 } else if(current_node.numNext()==1) {
437 generateFlatNode(fm, current_node, output);
438 FlatNode nextnode=current_node.getNext(0);
439 if (visited.contains(nextnode)) {
440 output.println("goto L"+nodetolabel.get(nextnode)+";");
443 current_node=nextnode;
444 } else if (current_node.numNext()==2) {
447 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
448 if (!visited.contains(current_node.getNext(1)))
449 tovisit.add(current_node.getNext(1));
450 if (visited.contains(current_node.getNext(0))) {
451 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
454 current_node=current_node.getNext(0);
455 } else throw new Error();
457 output.println("}\n\n");
460 private String generateTemp(FlatMethod fm, TempDescriptor td) {
461 MethodDescriptor md=fm.getMethod();
462 TempObject objecttemps=(TempObject) tempstable.get(md);
463 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
464 return td.getSafeSymbol();
467 if (objecttemps.isLocalPtr(td)) {
468 return localsprefix+"."+td.getSafeSymbol();
471 if (objecttemps.isParamPtr(td)) {
472 return paramsprefix+"->"+td.getSafeSymbol();
477 private void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
480 generateFlatCall(fm, (FlatCall) fn,output);
482 case FKind.FlatFieldNode:
483 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
485 case FKind.FlatElementNode:
486 generateFlatElementNode(fm, (FlatElementNode) fn,output);
488 case FKind.FlatSetElementNode:
489 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
491 case FKind.FlatSetFieldNode:
492 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
495 generateFlatNew(fm, (FlatNew) fn,output);
497 case FKind.FlatOpNode:
498 generateFlatOpNode(fm, (FlatOpNode) fn,output);
500 case FKind.FlatCastNode:
501 generateFlatCastNode(fm, (FlatCastNode) fn,output);
503 case FKind.FlatLiteralNode:
504 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
506 case FKind.FlatReturnNode:
507 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
510 output.println("/* nop */");
517 private void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
518 MethodDescriptor md=fc.getMethod();
519 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
520 ClassDescriptor cn=md.getClassDesc();
522 if (GENERATEPRECISEGC) {
523 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
525 output.print(objectparams.getUID());
526 output.print(", & "+localsprefix);
527 if (fc.getThis()!=null) {
529 output.print(generateTemp(fm,fc.getThis()));
531 for(int i=0;i<fc.numArgs();i++) {
532 VarDescriptor var=md.getParameter(i);
533 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
534 if (objectparams.isParamPtr(paramtemp)) {
535 TempDescriptor targ=fc.getArg(i);
537 output.print(generateTemp(fm, targ));
540 output.println("};");
545 if (fc.getReturnTemp()!=null)
546 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
547 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
548 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
552 if (md.getReturnType().isClass()||md.getReturnType().isArray())
553 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
555 output.print(md.getReturnType().getSafeSymbol()+" ");
556 output.print("(*)(");
558 boolean printcomma=false;
559 if (GENERATEPRECISEGC) {
560 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
565 for(int i=0;i<objectparams.numPrimitives();i++) {
566 TempDescriptor temp=objectparams.getPrimitive(i);
570 if (temp.getType().isClass()||temp.getType().isArray())
571 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
573 output.print(temp.getType().getSafeSymbol());
576 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
580 boolean needcomma=false;
581 if (GENERATEPRECISEGC) {
582 output.print("&__parameterlist__");
585 if (fc.getThis()!=null) {
586 output.print(generateTemp(fm,fc.getThis()));
590 for(int i=0;i<fc.numArgs();i++) {
591 VarDescriptor var=md.getParameter(i);
592 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
593 if (objectparams.isParamPrim(paramtemp)) {
594 TempDescriptor targ=fc.getArg(i);
597 output.print(generateTemp(fm, targ));
601 output.println(");");
602 output.println(" }");
605 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
606 Set subclasses=typeutil.getSubClasses(thiscd);
607 if (subclasses==null)
609 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
610 ClassDescriptor cd=(ClassDescriptor)classit.next();
611 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
612 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
613 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
614 if (md.matches(matchmd))
621 private void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
622 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
625 private void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
626 if (fsfn.getField().getSymbol().equals("length")&&fsfn.getDst().getType().isArray())
627 throw new Error("Can't set array length");
628 output.println(generateTemp(fm, fsfn.getDst())+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
631 private void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
632 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
635 if (elementtype.isArray()||elementtype.isClass())
638 type=elementtype.getSafeSymbol()+" ";
640 if (fen.needsBoundsCheck()) {
641 output.println("if ("+generateTemp(fm, fen.getIndex())+"< 0 || "+generateTemp(fm, fen.getIndex())+" >= "+generateTemp(fm,fen.getSrc()) + "->___length___)");
642 output.println("failedboundschk();");
645 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->___length___))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
648 private void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
649 //TODO: need dynamic check to make sure this assignment is actually legal
650 //Because Object[] could actually be something more specific...ie. Integer[]
652 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
655 if (elementtype.isArray()||elementtype.isClass())
658 type=elementtype.getSafeSymbol()+" ";
660 if (fsen.needsBoundsCheck()) {
661 output.println("if ("+generateTemp(fm, fsen.getIndex())+"< 0 || "+generateTemp(fm, fsen.getIndex())+" >= "+generateTemp(fm,fsen.getDst()) + "->___length___)");
662 output.println("failedboundschk();");
665 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->___length___))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
668 private void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
669 if (fn.getType().isArray()) {
670 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
671 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
673 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
676 private void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
678 if (fon.getRight()!=null)
679 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
680 else if (fon.getOp().getOp()==Operation.ASSIGN)
681 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
682 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
683 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
684 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
685 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
686 else if (fon.getOp().getOp()==Operation.LOGIC_NOT)
687 output.println(generateTemp(fm, fon.getDest())+" = !"+generateTemp(fm, fon.getLeft())+";");
689 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
692 private void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
693 /* TODO: Do type check here */
694 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
697 private void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
698 if (fln.getValue()==null)
699 output.println(generateTemp(fm, fln.getDst())+"=0;");
700 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass))
701 output.println(generateTemp(fm, fln.getDst())+"=NewString(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\","+((String)fln.getValue()).length()+");");
702 else if (fln.getType().isBoolean()) {
703 if (((Boolean)fln.getValue()).booleanValue())
704 output.println(generateTemp(fm, fln.getDst())+"=1;");
706 output.println(generateTemp(fm, fln.getDst())+"=0;");
707 } else if (fln.getType().isChar()) {
708 output.println(generateTemp(fm, fln.getDst())+"='"+fln.getValue()+"';");
710 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
713 private void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
714 if (frn.getReturnTemp()!=null)
715 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
717 output.println("return;");
720 private void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
721 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
724 private void generateHeader(MethodDescriptor md, PrintWriter output) {
726 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
727 ClassDescriptor cn=md.getClassDesc();
729 if (md.getReturnType()!=null) {
730 if (md.getReturnType().isClass()||md.getReturnType().isArray())
731 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
733 output.print(md.getReturnType().getSafeSymbol()+" ");
735 //catch the constructor case
736 output.print("void ");
738 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
740 boolean printcomma=false;
741 if (GENERATEPRECISEGC) {
742 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
746 for(int i=0;i<objectparams.numPrimitives();i++) {
747 TempDescriptor temp=objectparams.getPrimitive(i);
751 if (temp.getType().isClass()||temp.getType().isArray())
752 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
754 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());