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 the C declarations
61 // These could mutually reference each other
62 outclassdefs.println("struct "+arraytype+";");
64 ClassDescriptor cn=(ClassDescriptor)it.next();
65 outclassdefs.println("struct "+cn.getSafeSymbol()+";");
67 outclassdefs.println("");
69 //Print out definition for array type
70 outclassdefs.println("struct "+arraytype+" {");
71 outclassdefs.println(" int type;");
72 printClassStruct(typeutil.getClass(TypeUtil.ObjectClass), outclassdefs);
73 outclassdefs.println(" int length;");
74 outclassdefs.println("};\n");
76 it=state.getClassSymbolTable().getDescriptorsIterator();
78 ClassDescriptor cn=(ClassDescriptor)it.next();
79 generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
83 outmethodheader.close();
85 /* Build the actual methods */
86 outmethod.println("#include \"methodheaders.h\"");
87 outmethod.println("#include \"virtualtable.h\"");
88 outmethod.println("#include <runtime.h>");
90 outclassdefs.println("extern int classsize[];");
91 //Store the sizes of classes & array elements
92 generateSizeArray(outmethod);
94 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
95 while(classit.hasNext()) {
96 ClassDescriptor cn=(ClassDescriptor)classit.next();
97 Iterator methodit=cn.getMethods();
98 while(methodit.hasNext()) {
99 /* Classify parameters */
100 MethodDescriptor md=(MethodDescriptor)methodit.next();
101 FlatMethod fm=state.getMethodFlat(md);
102 if (!md.getModifiers().isNative())
103 generateFlatMethod(fm,outmethod);
106 if (state.main!=null) {
107 outmethod.println("int main(int argc, const char *argv[]) {");
108 ClassDescriptor cd=typeutil.getClass(state.main);
109 Set mainset=cd.getMethodTable().getSet("main");
110 for(Iterator mainit=mainset.iterator();mainit.hasNext();) {
111 MethodDescriptor md=(MethodDescriptor)mainit.next();
112 if (md.numParameters()!=0)
114 if (!md.getModifiers().isStatic())
115 throw new Error("Error: Non static main");
116 outmethod.println(" "+cd.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"();");
119 outmethod.println("}");
124 private int maxcount=0;
126 private void buildVirtualTables(PrintWriter outvirtual) {
127 Iterator classit=state.getClassSymbolTable().getDescriptorsIterator();
128 while(classit.hasNext()) {
129 ClassDescriptor cd=(ClassDescriptor)classit.next();
130 if (virtualcalls.getMethodCount(cd)>maxcount)
131 maxcount=virtualcalls.getMethodCount(cd);
133 MethodDescriptor[][] virtualtable=new MethodDescriptor[state.numClasses()+state.numArrays()][maxcount];
135 /* Fill in virtual table */
136 classit=state.getClassSymbolTable().getDescriptorsIterator();
137 while(classit.hasNext()) {
138 ClassDescriptor cd=(ClassDescriptor)classit.next();
139 fillinRow(cd, virtualtable, cd.getId());
142 ClassDescriptor objectcd=typeutil.getClass(TypeUtil.ObjectClass);
143 Iterator arrayit=state.getArrayIterator();
144 while(arrayit.hasNext()) {
145 TypeDescriptor td=(TypeDescriptor)arrayit.next();
146 int id=state.getArrayNumber(td);
147 fillinRow(objectcd, virtualtable, id+state.numClasses());
150 outvirtual.print("void * virtualtable[]={");
151 boolean needcomma=false;
152 for(int i=0;i<state.numClasses()+state.numArrays();i++) {
153 for(int j=0;j<maxcount;j++) {
155 outvirtual.print(", ");
156 if (virtualtable[i][j]!=null) {
157 MethodDescriptor md=virtualtable[i][j];
158 outvirtual.print("& "+md.getClassDesc().getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
160 outvirtual.print("0");
164 outvirtual.println("");
166 outvirtual.println("};");
170 private void fillinRow(ClassDescriptor cd, MethodDescriptor[][] virtualtable, int rownum) {
171 /* Get inherited methods */
172 if (cd.getSuperDesc()!=null)
173 fillinRow(cd.getSuperDesc(), virtualtable, rownum);
174 /* Override them with our methods */
175 for(Iterator it=cd.getMethods();it.hasNext();) {
176 MethodDescriptor md=(MethodDescriptor)it.next();
177 if (md.isStatic()||md.getReturnType()==null)
179 int methodnum=virtualcalls.getMethodNumber(md);
180 virtualtable[rownum][methodnum]=md;
184 private void generateSizeArray(PrintWriter outclassdefs) {
185 outclassdefs.print("int classsize[]={");
186 Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
187 ClassDescriptor[] cdarray=new ClassDescriptor[state.numClasses()];
188 while(it.hasNext()) {
189 ClassDescriptor cd=(ClassDescriptor)it.next();
190 cdarray[cd.getId()]=cd;
192 boolean needcomma=false;
193 for(int i=0;i<state.numClasses();i++) {
195 outclassdefs.print(", ");
196 outclassdefs.print("sizeof(struct "+cdarray[i].getSafeSymbol()+")");
200 TypeDescriptor[] sizetable=new TypeDescriptor[state.numArrays()];
202 Iterator arrayit=state.getArrayIterator();
203 while(arrayit.hasNext()) {
204 TypeDescriptor td=(TypeDescriptor)arrayit.next();
205 int id=state.getArrayNumber(td);
209 for(int i=0;i<state.numArrays();i++) {
211 outclassdefs.print(", ");
212 TypeDescriptor tdelement=sizetable[i].dereference();
213 if (tdelement.isArray()||tdelement.isClass())
214 outclassdefs.print("sizeof(void *)");
216 outclassdefs.print("sizeof("+tdelement.getSafeSymbol()+")");
220 outclassdefs.println("};");
223 private void generateTempStructs(FlatMethod fm) {
224 MethodDescriptor md=fm.getMethod();
225 ParamsObject objectparams=new ParamsObject(md,tag++);
226 paramstable.put(md, objectparams);
227 for(int i=0;i<fm.numParameters();i++) {
228 TempDescriptor temp=fm.getParameter(i);
229 TypeDescriptor type=temp.getType();
230 if (type.isPtr()&&GENERATEPRECISEGC)
231 objectparams.addPtr(temp);
233 objectparams.addPrim(temp);
236 TempObject objecttemps=new TempObject(objectparams,md,tag++);
237 tempstable.put(md, objecttemps);
238 for(Iterator nodeit=fm.getNodeSet().iterator();nodeit.hasNext();) {
239 FlatNode fn=(FlatNode)nodeit.next();
240 TempDescriptor[] writes=fn.writesTemps();
241 for(int i=0;i<writes.length;i++) {
242 TempDescriptor temp=writes[i];
243 TypeDescriptor type=temp.getType();
244 if (type.isPtr()&&GENERATEPRECISEGC)
245 objecttemps.addPtr(temp);
247 objecttemps.addPrim(temp);
252 /* Force consistent field ordering between inherited classes */
253 private void printClassStruct(ClassDescriptor cn, PrintWriter classdefout) {
254 ClassDescriptor sp=cn.getSuperDesc();
256 printClassStruct(sp, classdefout);
258 if (!fieldorder.containsKey(cn)) {
259 Vector fields=new Vector();
260 fieldorder.put(cn,fields);
261 Iterator fieldit=cn.getFields();
262 while(fieldit.hasNext()) {
263 FieldDescriptor fd=(FieldDescriptor)fieldit.next();
264 if (sp==null||!sp.getFieldTable().contains(fd.getSymbol()))
268 Vector fields=(Vector)fieldorder.get(cn);
270 for(int i=0;i<fields.size();i++) {
271 FieldDescriptor fd=(FieldDescriptor)fields.get(i);
272 if (fd.getType().isClass()||fd.getType().isArray())
273 classdefout.println(" struct "+fd.getType().getSafeSymbol()+" * "+fd.getSafeSymbol()+";");
275 classdefout.println(" "+fd.getType().getSafeSymbol()+" "+fd.getSafeSymbol()+";");
279 private void generateCallStructs(ClassDescriptor cn, PrintWriter classdefout, PrintWriter output, PrintWriter headersout) {
280 /* Output class structure */
281 classdefout.println("struct "+cn.getSafeSymbol()+" {");
282 classdefout.println(" int type;");
283 printClassStruct(cn, classdefout);
284 classdefout.println("};\n");
286 /* Cycle through methods */
287 Iterator methodit=cn.getMethods();
288 while(methodit.hasNext()) {
289 /* Classify parameters */
290 MethodDescriptor md=(MethodDescriptor)methodit.next();
291 FlatMethod fm=state.getMethodFlat(md);
292 generateTempStructs(fm);
294 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
295 TempObject objecttemps=(TempObject) tempstable.get(md);
297 /* Output parameter structure */
298 if (GENERATEPRECISEGC) {
299 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params {");
300 output.println(" int type;");
301 output.println(" void * next;");
302 for(int i=0;i<objectparams.numPointers();i++) {
303 TempDescriptor temp=objectparams.getPointer(i);
304 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
306 output.println("};\n");
309 /* Output temp structure */
310 if (GENERATEPRECISEGC) {
311 output.println("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals {");
312 output.println(" int type;");
313 output.println(" void * next;");
314 for(int i=0;i<objecttemps.numPointers();i++) {
315 TempDescriptor temp=objecttemps.getPointer(i);
316 if (temp.getType().isNull())
317 output.println(" void * "+temp.getSafeSymbol()+";");
319 output.println(" struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
321 output.println("};\n");
324 /* Output method declaration */
325 if (md.getReturnType()!=null) {
326 if (md.getReturnType().isClass()||md.getReturnType().isArray())
327 headersout.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
329 headersout.print(md.getReturnType().getSafeSymbol()+" ");
331 //catch the constructor case
332 headersout.print("void ");
333 headersout.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
335 boolean printcomma=false;
336 if (GENERATEPRECISEGC) {
337 headersout.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
341 for(int i=0;i<objectparams.numPrimitives();i++) {
342 TempDescriptor temp=objectparams.getPrimitive(i);
344 headersout.print(", ");
346 if (temp.getType().isClass()||temp.getType().isArray())
347 headersout.print("struct " + temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
349 headersout.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());
351 headersout.println(");\n");
355 private void generateFlatMethod(FlatMethod fm, PrintWriter output) {
356 MethodDescriptor md=fm.getMethod();
357 ClassDescriptor cn=md.getClassDesc();
358 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
360 generateHeader(md,output);
362 output.println(" {");
364 if (GENERATEPRECISEGC) {
365 output.println(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_locals "+localsprefix+";");
367 TempObject objecttemp=(TempObject) tempstable.get(md);
368 for(int i=0;i<objecttemp.numPrimitives();i++) {
369 TempDescriptor td=objecttemp.getPrimitive(i);
370 TypeDescriptor type=td.getType();
372 output.println(" void * "+td.getSafeSymbol()+";");
373 else if (type.isClass()||type.isArray())
374 output.println(" struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
376 output.println(" "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
380 /* Generate labels first */
381 HashSet tovisit=new HashSet();
382 HashSet visited=new HashSet();
384 Hashtable nodetolabel=new Hashtable();
385 tovisit.add(fm.methodEntryNode());
386 FlatNode current_node=null;
389 //Node needs a label if it is
390 while(!tovisit.isEmpty()) {
391 FlatNode fn=(FlatNode)tovisit.iterator().next();
394 for(int i=0;i<fn.numNext();i++) {
395 FlatNode nn=fn.getNext(i);
398 nodetolabel.put(nn,new Integer(labelindex++));
400 if (!visited.contains(nn)&&!tovisit.contains(nn)) {
404 nodetolabel.put(nn,new Integer(labelindex++));
409 //Do the actual code generation
410 tovisit=new HashSet();
411 visited=new HashSet();
412 tovisit.add(fm.methodEntryNode());
413 while(current_node!=null||!tovisit.isEmpty()) {
414 if (current_node==null) {
415 current_node=(FlatNode)tovisit.iterator().next();
416 tovisit.remove(current_node);
418 visited.add(current_node);
419 if (nodetolabel.containsKey(current_node))
420 output.println("L"+nodetolabel.get(current_node)+":");
421 if (current_node.numNext()==0) {
423 generateFlatNode(fm, current_node, output);
424 if (current_node.kind()!=FKind.FlatReturnNode) {
425 output.println(" return;");
428 } else if(current_node.numNext()==1) {
430 generateFlatNode(fm, current_node, output);
431 FlatNode nextnode=current_node.getNext(0);
432 if (visited.contains(nextnode)) {
433 output.println("goto L"+nodetolabel.get(nextnode)+";");
436 current_node=nextnode;
437 } else if (current_node.numNext()==2) {
440 generateFlatCondBranch(fm, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
441 if (!visited.contains(current_node.getNext(1)))
442 tovisit.add(current_node.getNext(1));
443 if (visited.contains(current_node.getNext(0))) {
444 output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
447 current_node=current_node.getNext(0);
448 } else throw new Error();
450 output.println("}\n\n");
453 private String generateTemp(FlatMethod fm, TempDescriptor td) {
454 MethodDescriptor md=fm.getMethod();
455 TempObject objecttemps=(TempObject) tempstable.get(md);
456 if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
457 return td.getSafeSymbol();
460 if (objecttemps.isLocalPtr(td)) {
461 return localsprefix+"."+td.getSafeSymbol();
464 if (objecttemps.isParamPtr(td)) {
465 return paramsprefix+"->"+td.getSafeSymbol();
470 private void generateFlatNode(FlatMethod fm, FlatNode fn, PrintWriter output) {
473 generateFlatCall(fm, (FlatCall) fn,output);
475 case FKind.FlatFieldNode:
476 generateFlatFieldNode(fm, (FlatFieldNode) fn,output);
478 case FKind.FlatElementNode:
479 generateFlatElementNode(fm, (FlatElementNode) fn,output);
481 case FKind.FlatSetElementNode:
482 generateFlatSetElementNode(fm, (FlatSetElementNode) fn,output);
484 case FKind.FlatSetFieldNode:
485 generateFlatSetFieldNode(fm, (FlatSetFieldNode) fn,output);
488 generateFlatNew(fm, (FlatNew) fn,output);
490 case FKind.FlatOpNode:
491 generateFlatOpNode(fm, (FlatOpNode) fn,output);
493 case FKind.FlatCastNode:
494 generateFlatCastNode(fm, (FlatCastNode) fn,output);
496 case FKind.FlatLiteralNode:
497 generateFlatLiteralNode(fm, (FlatLiteralNode) fn,output);
499 case FKind.FlatReturnNode:
500 generateFlatReturnNode(fm, (FlatReturnNode) fn,output);
503 output.println("/* nop */");
510 private void generateFlatCall(FlatMethod fm, FlatCall fc, PrintWriter output) {
511 MethodDescriptor md=fc.getMethod();
512 ParamsObject objectparams=(ParamsObject) paramstable.get(md);
513 ClassDescriptor cn=md.getClassDesc();
515 if (GENERATEPRECISEGC) {
516 output.print(" struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params __parameterlist__={");
518 output.print(objectparams.getUID());
519 output.print(", & "+localsprefix);
520 if (fc.getThis()!=null) {
522 output.print(generateTemp(fm,fc.getThis()));
524 for(int i=0;i<fc.numArgs();i++) {
525 VarDescriptor var=md.getParameter(i);
526 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
527 if (objectparams.isParamPtr(paramtemp)) {
528 TempDescriptor targ=fc.getArg(i);
530 output.print(generateTemp(fm, targ));
533 output.println("};");
538 if (fc.getReturnTemp()!=null)
539 output.print(generateTemp(fm,fc.getReturnTemp())+"=");
540 if (md.isStatic()||md.getReturnType()==null||singleCall(fc.getThis().getType().getClassDesc(),md)) {
541 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor());
545 if (md.getReturnType().isClass()||md.getReturnType().isArray())
546 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
548 output.print(md.getReturnType().getSafeSymbol()+" ");
549 output.print("(*)(");
551 boolean printcomma=false;
552 if (GENERATEPRECISEGC) {
553 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * ");
558 for(int i=0;i<objectparams.numPrimitives();i++) {
559 TempDescriptor temp=objectparams.getPrimitive(i);
563 if (temp.getType().isClass()||temp.getType().isArray())
564 output.print("struct " + temp.getType().getSafeSymbol()+" * ");
566 output.print(temp.getType().getSafeSymbol());
569 output.print("))virtualtable["+generateTemp(fm,fc.getThis())+"->type*"+maxcount+"+"+virtualcalls.getMethodNumber(md)+"])");
573 boolean needcomma=false;
574 if (GENERATEPRECISEGC) {
575 output.print("&__parameterlist__");
578 if (fc.getThis()!=null) {
579 output.print(generateTemp(fm,fc.getThis()));
583 for(int i=0;i<fc.numArgs();i++) {
584 VarDescriptor var=md.getParameter(i);
585 TempDescriptor paramtemp=(TempDescriptor)temptovar.get(var);
586 if (objectparams.isParamPrim(paramtemp)) {
587 TempDescriptor targ=fc.getArg(i);
590 output.print(generateTemp(fm, targ));
594 output.println(");");
595 output.println(" }");
598 private boolean singleCall(ClassDescriptor thiscd, MethodDescriptor md) {
599 Set subclasses=typeutil.getSubClasses(thiscd);
600 if (subclasses==null)
602 for(Iterator classit=subclasses.iterator();classit.hasNext();) {
603 ClassDescriptor cd=(ClassDescriptor)classit.next();
604 Set possiblematches=cd.getMethodTable().getSet(md.getSymbol());
605 for(Iterator matchit=possiblematches.iterator();matchit.hasNext();) {
606 MethodDescriptor matchmd=(MethodDescriptor)matchit.next();
607 if (md.matches(matchmd))
614 private void generateFlatFieldNode(FlatMethod fm, FlatFieldNode ffn, PrintWriter output) {
615 output.println(generateTemp(fm, ffn.getDst())+"="+ generateTemp(fm,ffn.getSrc())+"->"+ ffn.getField().getSafeSymbol()+";");
618 private void generateFlatSetFieldNode(FlatMethod fm, FlatSetFieldNode fsfn, PrintWriter output) {
619 output.println(generateTemp(fm, fsfn.getDst())+"->"+ fsfn.getField().getSafeSymbol()+"="+ generateTemp(fm,fsfn.getSrc())+";");
622 private void generateFlatElementNode(FlatMethod fm, FlatElementNode fen, PrintWriter output) {
623 TypeDescriptor elementtype=fen.getSrc().getType().dereference();
626 if (elementtype.isArray()||elementtype.isClass())
629 type=elementtype.getSafeSymbol()+" ";
630 output.println(generateTemp(fm, fen.getDst())+"=(("+ type+"*)(((char *) &("+ generateTemp(fm,fen.getSrc())+"->length))+sizeof(int)))["+generateTemp(fm, fen.getIndex())+"];");
633 private void generateFlatSetElementNode(FlatMethod fm, FlatSetElementNode fsen, PrintWriter output) {
634 //TODO need dynamic check to make sure this assignment is actually legal
635 //Because Object[] could actually be something more specific...ie. Integer[]
636 TypeDescriptor elementtype=fsen.getDst().getType().dereference();
639 if (elementtype.isArray()||elementtype.isClass())
642 type=elementtype.getSafeSymbol()+" ";
644 output.println("(("+type +"*)(((char *) &("+ generateTemp(fm,fsen.getDst())+"->length))+sizeof(int)))["+generateTemp(fm, fsen.getIndex())+"]="+generateTemp(fm,fsen.getSrc())+";");
647 private void generateFlatNew(FlatMethod fm, FlatNew fn, PrintWriter output) {
648 if (fn.getType().isArray()) {
649 int arrayid=state.getArrayNumber(fn.getType())+state.numClasses();
650 output.println(generateTemp(fm,fn.getDst())+"=allocate_newarray("+arrayid+", "+generateTemp(fm, fn.getSize())+");");
652 output.println(generateTemp(fm,fn.getDst())+"=allocate_new("+fn.getType().getClassDesc().getId()+");");
655 private void generateFlatOpNode(FlatMethod fm, FlatOpNode fon, PrintWriter output) {
657 if (fon.getRight()!=null)
658 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+fon.getOp().toString()+generateTemp(fm,fon.getRight())+";");
659 else if (fon.getOp().getOp()==Operation.ASSIGN)
660 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
661 else if (fon.getOp().getOp()==Operation.UNARYPLUS)
662 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+";");
663 else if (fon.getOp().getOp()==Operation.UNARYMINUS)
664 output.println(generateTemp(fm, fon.getDest())+" = -"+generateTemp(fm, fon.getLeft())+";");
665 else if (fon.getOp().getOp()==Operation.POSTINC)
666 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"++;");
667 else if (fon.getOp().getOp()==Operation.POSTDEC)
668 output.println(generateTemp(fm, fon.getDest())+" = "+generateTemp(fm, fon.getLeft())+"--;");
669 else if (fon.getOp().getOp()==Operation.PREINC)
670 output.println(generateTemp(fm, fon.getDest())+" = ++"+generateTemp(fm, fon.getLeft())+";");
671 else if (fon.getOp().getOp()==Operation.PREDEC)
672 output.println(generateTemp(fm, fon.getDest())+" = --"+generateTemp(fm, fon.getLeft())+";");
674 output.println(generateTemp(fm, fon.getDest())+fon.getOp().toString()+generateTemp(fm, fon.getLeft())+";");
677 private void generateFlatCastNode(FlatMethod fm, FlatCastNode fcn, PrintWriter output) {
678 /* TODO: Make call into runtime */
679 output.println(generateTemp(fm,fcn.getDst())+"=("+fcn.getType().getSafeSymbol()+")"+generateTemp(fm,fcn.getSrc())+";");
682 private void generateFlatLiteralNode(FlatMethod fm, FlatLiteralNode fln, PrintWriter output) {
683 if (fln.getValue()==null)
684 output.println(generateTemp(fm, fln.getDst())+"=0;");
685 else if (fln.getType().getSymbol().equals(TypeUtil.StringClass))
686 output.println(generateTemp(fm, fln.getDst())+"=newstring(\""+FlatLiteralNode.escapeString((String)fln.getValue())+"\");");
687 else if (fln.getType().isBoolean()) {
688 if (((Boolean)fln.getValue()).booleanValue())
689 output.println(generateTemp(fm, fln.getDst())+"=1;");
691 output.println(generateTemp(fm, fln.getDst())+"=0;");
693 output.println(generateTemp(fm, fln.getDst())+"="+fln.getValue()+";");
696 private void generateFlatReturnNode(FlatMethod fm, FlatReturnNode frn, PrintWriter output) {
697 if (frn.getReturnTemp()!=null)
698 output.println("return "+generateTemp(fm, frn.getReturnTemp())+";");
700 output.println("return;");
703 private void generateFlatCondBranch(FlatMethod fm, FlatCondBranch fcb, String label, PrintWriter output) {
704 output.println("if (!"+generateTemp(fm, fcb.getTest())+") goto "+label+";");
707 private void generateHeader(MethodDescriptor md, PrintWriter output) {
709 ParamsObject objectparams=(ParamsObject)paramstable.get(md);
710 ClassDescriptor cn=md.getClassDesc();
712 if (md.getReturnType()!=null) {
713 if (md.getReturnType().isClass()||md.getReturnType().isArray())
714 output.print("struct " + md.getReturnType().getSafeSymbol()+" * ");
716 output.print(md.getReturnType().getSafeSymbol()+" ");
718 //catch the constructor case
719 output.print("void ");
721 output.print(cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"(");
723 boolean printcomma=false;
724 if (GENERATEPRECISEGC) {
725 output.print("struct "+cn.getSafeSymbol()+md.getSafeSymbol()+"_"+md.getSafeMethodDescriptor()+"_params * "+paramsprefix);
729 for(int i=0;i<objectparams.numPrimitives();i++) {
730 TempDescriptor temp=objectparams.getPrimitive(i);
734 if (temp.getType().isClass()||temp.getType().isArray())
735 output.print("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol());
737 output.print(temp.getType().getSafeSymbol()+" "+temp.getSafeSymbol());