Repair/RepairCompiler/MCC/IR/RepairGenerator.java

   1 package MCC.IR;
   2
   3 import java.io.*;
   4 import java.util.*;
   5 import MCC.State;
   6
   7 public class RepairGenerator {
   8     State state;
   9     java.io.PrintWriter outputrepair = null;
  10     java.io.PrintWriter outputaux = null;
  11     java.io.PrintWriter outputhead = null;
  12     String name="foo";
  13     String headername;
  14     static VarDescriptor oldmodel=null;
  15     static VarDescriptor newmodel=null;
  16     static VarDescriptor worklist=null;
  17     static VarDescriptor repairtable=null;
  18     static VarDescriptor goodflag=null;
  19     Rule currentrule=null;
  20     Hashtable updatenames;
  21     HashSet usedupdates;
  22     Termination termination;
  23     Set removed;
  24     HashSet togenerate;
  25     static boolean DEBUG=false;
  26     Cost cost;
  27     Sources sources;
  28
  29     public RepairGenerator(State state, Termination t) {
  30         this.state = state;
  31         updatenames=new Hashtable();
  32         usedupdates=new HashSet();
  33         termination=t;
  34         removed=t.removedset;
  35         togenerate=new HashSet();
  36         togenerate.addAll(termination.conjunctions);
  37         togenerate.removeAll(removed);
  38         GraphNode.computeclosure(togenerate,removed);
  39         cost=new Cost();
  40         sources=new Sources(state);
  41         Repair.repairgenerator=this;
  42     }
  43
  44     private void generatetypechecks(boolean flag) {
  45         if (flag) {
  46             DotExpr.DOTYPECHECKS=true;
  47             VarExpr.DOTYPECHECKS=true;
  48             DotExpr.DONULL=true;
  49             VarExpr.DONULL=true;
  50         } else {
  51             VarExpr.DOTYPECHECKS=false;
  52             DotExpr.DOTYPECHECKS=false;
  53             VarExpr.DONULL=true;
  54             DotExpr.DONULL=true;
  55         }
  56     }
  57
  58
  59     private void name_updates() {
  60         int count=0;
  61         for(Iterator it=termination.updatenodes.iterator();it.hasNext();) {
  62             GraphNode gn=(GraphNode) it.next();
  63             TermNode tn=(TermNode) gn.getOwner();
  64             MultUpdateNode mun=tn.getUpdate();
  65             if (togenerate.contains(gn))
  66             for (int i=0;i<mun.numUpdates();i++) {
  67                 UpdateNode un=mun.getUpdate(i);
  68                 String name="update"+String.valueOf(count++);
  69                 updatenames.put(un,name);
  70             }
  71         }
  72     }
  73
  74     public void generate(OutputStream outputrepair, OutputStream outputaux,OutputStream outputhead, String st) {
  75         this.outputrepair = new java.io.PrintWriter(outputrepair, true);
  76         this.outputaux = new java.io.PrintWriter(outputaux, true);
  77         this.outputhead = new java.io.PrintWriter(outputhead, true);
  78         headername=st;
  79         name_updates();
  80         generatetypechecks(true);
  81         generate_tokentable();
  82         generate_hashtables();
  83         generate_stateobject();
  84         generate_call();
  85         generate_worklist();
  86         generate_rules();
  87         generate_checks();
  88         generate_teardown();
  89         CodeWriter crhead = new StandardCodeWriter(this.outputhead);
  90         CodeWriter craux = new StandardCodeWriter(this.outputaux);
  91         crhead.outputline("};");
  92         craux.outputline("}");
  93         generatetypechecks(false);
  94         generate_computesizes();
  95         generatetypechecks(true);
  96         generate_recomputesizes();
  97         generatetypechecks(false);
  98         generate_updates();
  99         StructureGenerator sg=new StructureGenerator(state,this);
 100         sg.buildall();
 101         crhead.outputline("#endif");
 102     }
 103
 104     String ststate="state";
 105     String stmodel="model";
 106     String strepairtable="repairtable";
 107     String stleft="left";
 108     String stright="right";
 109
 110     private void generate_updates() {
 111         int count=0;
 112         CodeWriter crhead = new StandardCodeWriter(outputhead);
 113         CodeWriter craux = new StandardCodeWriter(outputaux);
 114
 115         /* Rewrite globals */
 116
 117         for (Iterator it=this.state.stGlobals.descriptors();it.hasNext();) {
 118             VarDescriptor vd=(VarDescriptor)it.next();
 119             craux.outputline("#define "+vd.getSafeSymbol()+" "+ststate+"->"+vd.getSafeSymbol());
 120         }
 121
 122         for(Iterator it=termination.updatenodes.iterator();it.hasNext();) {
 123             GraphNode gn=(GraphNode) it.next();
 124             TermNode tn=(TermNode) gn.getOwner();
 125             MultUpdateNode mun=tn.getUpdate();
 126             boolean isrelation=(mun.getDescriptor() instanceof RelationDescriptor);
 127             if (togenerate.contains(gn))
 128             for (int i=0;i<mun.numUpdates();i++) {
 129                 UpdateNode un=mun.getUpdate(i);
 130                 String methodname=(String)updatenames.get(un);
 131
 132                 switch(mun.op) {
 133                 case MultUpdateNode.ADD:
 134                     if (isrelation) {
 135                         crhead.outputline("void "+methodname+"("+name+"_state * " +ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+", int "+stright+");");
 136                         craux.outputline("void "+methodname+"("+name+"_state * "+ ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+", int "+stright+")");
 137                     } else {
 138                         crhead.outputline("void "+methodname+"("+name+"_state * "+ ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+");");
 139                         craux.outputline("void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+")");
 140                     }
 141                     craux.startblock();
 142                     craux.outputline("int maybe=0;");
 143                     final SymbolTable st = un.getRule().getSymbolTable();
 144                     CodeWriter cr = new StandardCodeWriter(outputaux) {
 145                         public SymbolTable getSymbolTable() { return st; }
 146                     };
 147                     un.generate(cr, false, stleft,stright,this);
 148                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 149                     craux.endblock();
 150                     break;
 151                 case MultUpdateNode.REMOVE:
 152                     Rule r=un.getRule();
 153                     String methodcall="void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable;
 154                     for(int j=0;j<r.numQuantifiers();j++) {
 155                         Quantifier q=r.getQuantifier(j);
 156                         if (q instanceof SetQuantifier) {
 157                             SetQuantifier sq=(SetQuantifier) q;
 158                             methodcall+=","+sq.getVar().getType().getGenerateType().getSafeSymbol()+" "+sq.getVar().getSafeSymbol();
 159                         } else if (q instanceof RelationQuantifier) {
 160                             RelationQuantifier rq=(RelationQuantifier) q;
 161
 162                             methodcall+=","+rq.x.getType().getGenerateType().getSafeSymbol()+" "+rq.x.getSafeSymbol();
 163                             methodcall+=","+rq.y.getType().getGenerateType().getSafeSymbol()+" "+rq.y.getSafeSymbol();
 164                         } else if (q instanceof ForQuantifier) {
 165                             ForQuantifier fq=(ForQuantifier) q;
 166                             methodcall+=",int "+fq.getVar().getSafeSymbol();
 167                         }
 168                     }
 169                     methodcall+=")";
 170                     crhead.outputline(methodcall+";");
 171                     craux.outputline(methodcall);
 172                     craux.startblock();
 173                     craux.outputline("int maybe=0;");
 174                     final SymbolTable st2 = un.getRule().getSymbolTable();
 175                     CodeWriter cr2 = new StandardCodeWriter(outputaux) {
 176                         public SymbolTable getSymbolTable() { return st2; }
 177                     };
 178                     un.generate(cr2, true, null,null,this);
 179                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 180                     craux.endblock();
 181                     break;
 182                 case MultUpdateNode.MODIFY:
 183                 default:
 184                     throw new Error("Nonimplement Update");
 185                 }
 186             }
 187         }
 188     }
 189
 190     private void generate_call() {
 191         CodeWriter cr = new StandardCodeWriter(outputrepair);
 192         VarDescriptor vdstate=VarDescriptor.makeNew("repairstate");
 193         cr.outputline(name+"_state * "+vdstate.getSafeSymbol()+"=new "+name+"_state();");
 194         Iterator globals=state.stGlobals.descriptors();
 195         while (globals.hasNext()) {
 196             VarDescriptor vd=(VarDescriptor) globals.next();
 197             cr.outputline(vdstate.getSafeSymbol()+"->"+vd.getSafeSymbol()+"=("+vd.getType().getGenerateType().getSafeSymbol()+")"+vd.getSafeSymbol()+";");
 198         }
 199         /* Insert repair here */
 200         cr.outputline(vdstate.getSafeSymbol()+"->doanalysis();");
 201         globals=state.stGlobals.descriptors();
 202         while (globals.hasNext()) {
 203             VarDescriptor vd=(VarDescriptor) globals.next();
 204             cr.outputline("*(("+vd.getType().getGenerateType().getSafeSymbol()+"*) &"+vd.getSafeSymbol()+")="+vdstate.getSafeSymbol()+"->"+vd.getSafeSymbol()+";");
 205         }
 206         cr.outputline("delete "+vdstate.getSafeSymbol()+";");
 207     }
 208
 209     private void generate_tokentable() {
 210         CodeWriter cr = new StandardCodeWriter(outputrepair);
 211         Iterator tokens = TokenLiteralExpr.tokens.keySet().iterator();
 212
 213         cr.outputline("");
 214         cr.outputline("// Token values");
 215         cr.outputline("");
 216
 217         while (tokens.hasNext()) {
 218             Object token = tokens.next();
 219             cr.outputline("// " + token.toString() + " = " + TokenLiteralExpr.tokens.get(token).toString());
 220         }
 221
 222         cr.outputline("");
 223         cr.outputline("");
 224     }
 225
 226     private void generate_stateobject() {
 227         CodeWriter crhead = new StandardCodeWriter(outputhead);
 228         crhead.outputline("class "+name+"_state {");
 229         crhead.outputline("public:");
 230         Iterator globals=state.stGlobals.descriptors();
 231         while (globals.hasNext()) {
 232             VarDescriptor vd=(VarDescriptor) globals.next();
 233             crhead.outputline(vd.getType().getGenerateType().getSafeSymbol()+" "+vd.getSafeSymbol()+";");
 234         }
 235         crhead.outputline("void computesizes(int *,int **);");
 236         crhead.outputline("void recomputesizes();");
 237     }
 238
 239     private void generate_computesizes() {
 240         int max=TypeDescriptor.counter;
 241         TypeDescriptor[] tdarray=new TypeDescriptor[max];
 242         for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 243             TypeDescriptor ttd=(TypeDescriptor)it.next();
 244             tdarray[ttd.getId()]=ttd;
 245         }
 246         CodeWriter cr=new StandardCodeWriter(outputaux);
 247         cr.outputline("void "+name+"_state::computesizes(int *sizearray,int **numele) {");
 248         for(int i=0;i<max;i++) {
 249             TypeDescriptor td=tdarray[i];
 250             Expr size=td.getSizeExpr();
 251             VarDescriptor vd=VarDescriptor.makeNew("size");
 252             size.generate(cr,vd);
 253             cr.outputline("sizearray["+i+"]="+vd.getSafeSymbol()+";");
 254         }
 255         for(int i=0;i<max;i++) {
 256             TypeDescriptor td=tdarray[i];
 257             if (td instanceof StructureTypeDescriptor) {
 258                 StructureTypeDescriptor std=(StructureTypeDescriptor) td;
 259                 for(int j=0;j<std.fieldlist.size();j++) {
 260                     FieldDescriptor fd=(FieldDescriptor)std.fieldlist.get(j);
 261                     if (fd instanceof ArrayDescriptor) {
 262                         ArrayDescriptor ad=(ArrayDescriptor)fd;
 263                         Expr index=ad.getIndexBound();
 264                         VarDescriptor vd=VarDescriptor.makeNew("index");
 265                         index.generate(cr,vd);
 266                         cr.outputline("numele["+i+"]["+j+"]="+vd.getSafeSymbol()+";");
 267                     }
 268                 }
 269             }
 270         }
 271         cr.outputline("}");
 272     }
 273
 274     private void generate_recomputesizes() {
 275         int max=TypeDescriptor.counter;
 276         TypeDescriptor[] tdarray=new TypeDescriptor[max];
 277         for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 278             TypeDescriptor ttd=(TypeDescriptor)it.next();
 279             tdarray[ttd.getId()]=ttd;
 280         }
 281         CodeWriter cr=new StandardCodeWriter(outputaux);
 282         cr.outputline("void "+name+"_state::recomputesizes() {");
 283         for(int i=0;i<max;i++) {
 284             TypeDescriptor td=tdarray[i];
 285             Expr size=td.getSizeExpr();
 286             VarDescriptor vd=VarDescriptor.makeNew("size");
 287             size.generate(cr,vd);
 288         }
 289         for(int i=0;i<max;i++) {
 290             TypeDescriptor td=tdarray[i];
 291             if (td instanceof StructureTypeDescriptor) {
 292                 StructureTypeDescriptor std=(StructureTypeDescriptor) td;
 293                 for(int j=0;j<std.fieldlist.size();j++) {
 294                     FieldDescriptor fd=(FieldDescriptor)std.fieldlist.get(j);
 295                     if (fd instanceof ArrayDescriptor) {
 296                         ArrayDescriptor ad=(ArrayDescriptor)fd;
 297                         Expr index=ad.getIndexBound();
 298                         VarDescriptor vd=VarDescriptor.makeNew("index");
 299                         index.generate(cr,vd);
 300                     }
 301                 }
 302             }
 303         }
 304         cr.outputline("}");
 305     }
 306
 307
 308     private void generate_hashtables() {
 309         CodeWriter craux = new StandardCodeWriter(outputaux);
 310         CodeWriter crhead = new StandardCodeWriter(outputhead);
 311         crhead.outputline("#ifndef "+name+"_h");
 312         crhead.outputline("#define "+name+"_h");
 313         crhead.outputline("#include \"SimpleHash.h\"");
 314         crhead.outputline("extern \"C\" {");
 315         crhead.outputline("#include \"instrument.h\"");
 316         crhead.outputline("}");
 317         crhead.outputline("#include <stdio.h>");
 318         crhead.outputline("#include <stdlib.h>");
 319         crhead.outputline("class "+name+" {");
 320         crhead.outputline("public:");
 321         crhead.outputline(name+"();");
 322         crhead.outputline("~"+name+"();");
 323         craux.outputline("#include \""+headername+"\"");
 324         craux.outputline("#include \"size.h\"");
 325
 326         craux.outputline(name+"::"+name+"() {");
 327         craux.outputline("// creating hashtables ");
 328
 329         /* build sets */
 330         Iterator sets = state.stSets.descriptors();
 331
 332         /* first pass create all the hash tables */
 333         while (sets.hasNext()) {
 334             SetDescriptor set = (SetDescriptor) sets.next();
 335             crhead.outputline("SimpleHash* " + set.getSafeSymbol() + "_hash;");
 336             craux.outputline(set.getSafeSymbol() + "_hash = new SimpleHash();");
 337         }
 338
 339         /* second pass build relationships between hashtables */
 340         sets = state.stSets.descriptors();
 341
 342         while (sets.hasNext()) {
 343             SetDescriptor set = (SetDescriptor) sets.next();
 344             Iterator subsets = set.subsets();
 345
 346             while (subsets.hasNext()) {
 347                 SetDescriptor subset = (SetDescriptor) subsets.next();
 348                 craux.outputline(subset.getSafeSymbol() + "_hash->addParent(" + set.getSafeSymbol() + "_hash);");
 349             }
 350         }
 351
 352         /* build relations */
 353         Iterator relations = state.stRelations.descriptors();
 354
 355         /* first pass create all the hash tables */
 356         while (relations.hasNext()) {
 357             RelationDescriptor relation = (RelationDescriptor) relations.next();
 358
 359             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 360                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hash;");
 361                 craux.outputline(relation.getSafeSymbol() + "_hash = new SimpleHash();");
 362             }
 363
 364             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 365                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hashinv;");
 366                 craux.outputline(relation.getSafeSymbol() + "_hashinv = new SimpleHash();");
 367             }
 368         }
 369
 370         craux.outputline("}");
 371         crhead.outputline("};");
 372         craux.outputline(name+"::~"+name+"() {");
 373         craux.outputline("// deleting hashtables");
 374
 375         /* build destructor */
 376         sets = state.stSets.descriptors();
 377
 378         /* first pass create all the hash tables */
 379         while (sets.hasNext()) {
 380             SetDescriptor set = (SetDescriptor) sets.next();
 381             craux.outputline("delete "+set.getSafeSymbol() + "_hash;");
 382         }
 383
 384         /* destroy relations */
 385         relations = state.stRelations.descriptors();
 386
 387         /* first pass create all the hash tables */
 388         while (relations.hasNext()) {
 389             RelationDescriptor relation = (RelationDescriptor) relations.next();
 390
 391             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 392                 craux.outputline("delete "+relation.getSafeSymbol() + "_hash;");
 393             }
 394
 395             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 396                 craux.outputline("delete " + relation.getSafeSymbol() + ";");
 397             }
 398         }
 399         craux.outputline("}");
 400     }
 401
 402     private void generate_worklist() {
 403         CodeWriter crhead = new StandardCodeWriter(outputhead);
 404         CodeWriter craux = new StandardCodeWriter(outputaux);
 405         oldmodel=VarDescriptor.makeNew("oldmodel");
 406         newmodel=VarDescriptor.makeNew("newmodel");
 407         worklist=VarDescriptor.makeNew("worklist");
 408         goodflag=VarDescriptor.makeNew("goodflag");
 409         repairtable=VarDescriptor.makeNew("repairtable");
 410         crhead.outputline("void doanalysis();");
 411         craux.outputline("void "+name +"_state::doanalysis()");
 412         craux.startblock();
 413         craux.outputline("typeobject *typeobject1=gettypeobject();");
 414         craux.outputline("typeobject1->computesizes(this);");
 415         craux.outputline("recomputesizes();");
 416         craux.outputline(name+ " * "+oldmodel.getSafeSymbol()+"=0;");
 417         craux.outputline("WorkList * "+worklist.getSafeSymbol()+" = new WorkList();");
 418         craux.outputline("RepairHash * "+repairtable.getSafeSymbol()+"=0;");
 419         craux.outputline("while (1)");
 420         craux.startblock();
 421         craux.outputline("int "+goodflag.getSafeSymbol()+"=1;");
 422         craux.outputline(name+ " * "+newmodel.getSafeSymbol()+"=new "+name+"();");
 423     }
 424
 425     private void generate_teardown() {
 426         CodeWriter cr = new StandardCodeWriter(outputaux);
 427         cr.endblock();
 428     }
 429
 430     private void generate_rules() {
 431         /* first we must sort the rules */
 432         Iterator allrules = state.vRules.iterator();
 433         Vector emptyrules = new Vector(); // rules with no quantifiers
 434         Vector worklistrules = new Vector(); // the rest of the rules
 435         RelationDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 436         SetDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 437
 438         while (allrules.hasNext()) {
 439             Rule rule = (Rule) allrules.next();
 440             ListIterator quantifiers = rule.quantifiers();
 441             boolean noquantifiers = true;
 442             while (quantifiers.hasNext()) {
 443                 Quantifier quantifier = (Quantifier) quantifiers.next();
 444                 if (quantifier instanceof ForQuantifier) {
 445                     // ok, because integers exist already!
 446                 } else {
 447                     // real quantifier
 448                     noquantifiers = false;
 449                     break;
 450                 }
 451             }
 452             if (noquantifiers) {
 453                 emptyrules.add(rule);
 454             } else {
 455                 worklistrules.add(rule);
 456             }
 457         }
 458
 459         Iterator iterator_er = emptyrules.iterator();
 460         while (iterator_er.hasNext()) {
 461             Rule rule = (Rule) iterator_er.next();
 462             {
 463                 final SymbolTable st = rule.getSymbolTable();
 464                 CodeWriter cr = new StandardCodeWriter(outputaux) {
 465                         public SymbolTable getSymbolTable() { return st; }
 466                     };
 467                 cr.outputline("// build " +escape(rule.toString()));
 468                 cr.startblock();
 469                 cr.outputline("int maybe=0;");
 470                 ListIterator quantifiers = rule.quantifiers();
 471                 while (quantifiers.hasNext()) {
 472                     Quantifier quantifier = (Quantifier) quantifiers.next();
 473                     quantifier.generate_open(cr);
 474                 }
 475
 476                 /* pretty print! */
 477                 cr.output("//");
 478                 rule.getGuardExpr().prettyPrint(cr);
 479                 cr.outputline("");
 480
 481                 /* now we have to generate the guard test */
 482                 VarDescriptor guardval = VarDescriptor.makeNew();
 483                 rule.getGuardExpr().generate(cr, guardval);
 484                 cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 485                 cr.startblock();
 486
 487                 /* now we have to generate the inclusion code */
 488                 currentrule=rule;
 489                 rule.getInclusion().generate(cr);
 490                 cr.endblock();
 491                 while (quantifiers.hasPrevious()) {
 492                     Quantifier quantifier = (Quantifier) quantifiers.previous();
 493                     cr.endblock();
 494                 }
 495                 cr.endblock();
 496                 cr.outputline("");
 497                 cr.outputline("");
 498             }
 499         }
 500
 501         CodeWriter cr2 = new StandardCodeWriter(outputaux);
 502
 503         cr2.outputline("while ("+goodflag.getSafeSymbol()+"&&"+worklist.getSafeSymbol()+"->hasMoreElements())");
 504         cr2.startblock();
 505         VarDescriptor idvar=VarDescriptor.makeNew("id");
 506         cr2.outputline("int "+idvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getid();");
 507
 508         String elseladder = "if";
 509
 510         Iterator iterator_rules = worklistrules.iterator();
 511         while (iterator_rules.hasNext()) {
 512
 513             Rule rule = (Rule) iterator_rules.next();
 514             int dispatchid = rule.getNum();
 515
 516             {
 517                 final SymbolTable st = rule.getSymbolTable();
 518                 CodeWriter cr = new StandardCodeWriter(outputaux) {
 519                         public SymbolTable getSymbolTable() { return st; }
 520                     };
 521
 522                 cr.indent();
 523                 cr.outputline(elseladder + " ("+idvar.getSafeSymbol()+" == " + dispatchid + ")");
 524                 cr.startblock();
 525                 cr.outputline("int maybe=0;");
 526                 VarDescriptor typevar=VarDescriptor.makeNew("type");
 527                 VarDescriptor leftvar=VarDescriptor.makeNew("left");
 528                 VarDescriptor rightvar=VarDescriptor.makeNew("right");
 529                 cr.outputline("int "+typevar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->gettype();");
 530                 cr.outputline("int "+leftvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getlvalue();");
 531                 cr.outputline("int "+rightvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getrvalue();");
 532                 cr.outputline("// build " +escape(rule.toString()));
 533
 534
 535                 for (int j=0;j<rule.numQuantifiers();j++) {
 536                     Quantifier quantifier = rule.getQuantifier(j);
 537                     quantifier.generate_open(cr, typevar.getSafeSymbol(),j,leftvar.getSafeSymbol(),rightvar.getSafeSymbol());
 538                 }
 539
 540                 /* pretty print! */
 541                 cr.output("//");
 542
 543                 rule.getGuardExpr().prettyPrint(cr);
 544                 cr.outputline("");
 545
 546                 /* now we have to generate the guard test */
 547
 548                 VarDescriptor guardval = VarDescriptor.makeNew();
 549                 rule.getGuardExpr().generate(cr, guardval);
 550
 551                 cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 552                 cr.startblock();
 553
 554                 /* now we have to generate the inclusion code */
 555                 currentrule=rule;
 556                 rule.getInclusion().generate(cr);
 557                 cr.endblock();
 558
 559                 for (int j=0;j<rule.numQuantifiers();j++) {
 560                     cr.endblock();
 561                 }
 562
 563                 // close startblocks generated by DotExpr memory checks
 564                 //DotExpr.generate_memory_endblocks(cr);
 565
 566                 cr.endblock(); // end else-if WORKLIST ladder
 567
 568                 elseladder = "else if";
 569             }
 570         }
 571
 572         cr2.outputline("else");
 573         cr2.startblock();
 574         cr2.outputline("printf(\"VERY BAD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\\n\\n\");");
 575         cr2.outputline("exit(1);");
 576         cr2.endblock();
 577         // end block created for worklist
 578         cr2.outputline(worklist.getSafeSymbol()+"->pop();");
 579         cr2.endblock();
 580     }
 581
 582     public static String escape(String s) {
 583         String newstring="";
 584         for(int i=0;i<s.length();i++) {
 585             char c=s.charAt(i);
 586             if (c=='"')
 587                 newstring+="\"";
 588             else
 589                 newstring+=c;
 590         }
 591         return newstring;
 592     }
 593
 594     private void generate_checks() {
 595
 596         /* do constraint checks */
 597         Vector constraints = state.vConstraints;
 598
 599         for (int i = 0; i < constraints.size(); i++) {
 600
 601             Constraint constraint = (Constraint) constraints.elementAt(i);
 602
 603             {
 604
 605                 final SymbolTable st = constraint.getSymbolTable();
 606
 607                 CodeWriter cr = new StandardCodeWriter(outputaux) {
 608                         public SymbolTable getSymbolTable() { return st; }
 609                     };
 610
 611                 cr.outputline("// checking " + escape(constraint.toString()));
 612                 cr.startblock();
 613
 614                 ListIterator quantifiers = constraint.quantifiers();
 615
 616                 while (quantifiers.hasNext()) {
 617                     Quantifier quantifier = (Quantifier) quantifiers.next();
 618                     quantifier.generate_open(cr);
 619                 }
 620
 621                 cr.outputline("int maybe = 0;");
 622
 623                 /* now we have to generate the guard test */
 624
 625                 VarDescriptor constraintboolean = VarDescriptor.makeNew("constraintboolean");
 626                 constraint.getLogicStatement().generate(cr, constraintboolean);
 627
 628                 cr.outputline("if (maybe)");
 629                 cr.startblock();
 630                 cr.outputline("printf(\"maybe fail " +  escape(constraint.toString()) + ". \");");
 631                 cr.outputline("exit(1);");
 632                 cr.endblock();
 633
 634                 cr.outputline("else if (!" + constraintboolean.getSafeSymbol() + ")");
 635                 cr.startblock();
 636                 if (DEBUG)
 637                     cr.outputline("printf(\"fail " + escape(constraint.toString()) + ". \");");
 638
 639                 /* Do repairs */
 640                 /* Build new repair table */
 641                 cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 642                 cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 643                 cr.outputline(repairtable.getSafeSymbol()+"=new RepairHash();");
 644
 645
 646                 /* Compute cost of each repair */
 647                 VarDescriptor mincost=VarDescriptor.makeNew("mincost");
 648                 VarDescriptor mincostindex=VarDescriptor.makeNew("mincostindex");
 649                 DNFConstraint dnfconst=constraint.dnfconstraint;
 650                 if (dnfconst.size()<=1) {
 651                     cr.outputline("int "+mincostindex.getSafeSymbol()+"=0;");
 652                 }
 653                 if (dnfconst.size()>1) {
 654                     cr.outputline("int "+mincostindex.getSafeSymbol()+";");
 655                     boolean first=true;
 656                     for(int j=0;j<dnfconst.size();j++) {
 657                         Conjunction conj=dnfconst.get(j);
 658                         GraphNode gn=(GraphNode)termination.conjtonodemap.get(conj);
 659                         if (removed.contains(gn))
 660                             continue;
 661
 662                         VarDescriptor costvar;
 663                         if (first) {
 664                             costvar=mincost;
 665                         } else
 666                             costvar=VarDescriptor.makeNew("cost");
 667                         for(int k=0;k<conj.size();k++) {
 668                             DNFPredicate dpred=conj.get(k);
 669                             Predicate p=dpred.getPredicate();
 670                             boolean negate=dpred.isNegated();
 671                             VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 672                             p.generate(cr,predvalue);
 673                             if (negate)
 674                                 cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 675                             else
 676                                 cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 677                             if (k==0)
 678                                 cr.outputline("int "+costvar.getSafeSymbol()+"="+cost.getCost(dpred)+";");
 679                             else
 680                                 cr.outputline(costvar.getSafeSymbol()+"+="+cost.getCost(dpred)+";");
 681                         }
 682
 683                         if(!first) {
 684                             cr.outputline("if ("+costvar.getSafeSymbol()+"<"+mincost.getSafeSymbol()+")");
 685                             cr.startblock();
 686                             cr.outputline(mincost.getSafeSymbol()+"="+costvar.getSafeSymbol()+";");
 687                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 688                             cr.endblock();
 689                         } else
 690                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 691                         first=false;
 692                     }
 693                 }
 694                 cr.outputline("switch("+mincostindex.getSafeSymbol()+") {");
 695                 for(int j=0;j<dnfconst.size();j++) {
 696                     Conjunction conj=dnfconst.get(j);
 697                     GraphNode gn=(GraphNode)termination.conjtonodemap.get(conj);
 698                     if (removed.contains(gn))
 699                         continue;
 700                     cr.outputline("case "+j+":");
 701                     for(int k=0;k<conj.size();k++) {
 702                         DNFPredicate dpred=conj.get(k);
 703                         Predicate p=dpred.getPredicate();
 704                         boolean negate=dpred.isNegated();
 705                         VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 706                         p.generate(cr,predvalue);
 707                         if (negate)
 708                             cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 709                         else
 710                             cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 711                         cr.startblock();
 712                         if (p instanceof InclusionPredicate)
 713                             generateinclusionrepair(conj,dpred, cr);
 714                         else if (p instanceof ExprPredicate) {
 715                             ExprPredicate ep=(ExprPredicate)p;
 716                             if (ep.getType()==ExprPredicate.SIZE)
 717                                 generatesizerepair(conj,dpred,cr);
 718                             else if (ep.getType()==ExprPredicate.COMPARISON)
 719                                 generatecomparisonrepair(conj,dpred,cr);
 720                         } else throw new Error("Unrecognized Predicate");
 721                         cr.endblock();
 722                     }
 723                     /* Update model */
 724                     cr.outputline("break;");
 725                 }
 726                 cr.outputline("}");
 727
 728                 cr.outputline(goodflag.getSafeSymbol()+"=0;");
 729                 cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 730                 cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 731                 cr.outputline(oldmodel.getSafeSymbol()+"="+newmodel.getSafeSymbol()+";");
 732                 cr.outputline("goto rebuild;");  /* Rebuild model and all */
 733
 734                 cr.endblock();
 735
 736                 while (quantifiers.hasPrevious()) {
 737                     Quantifier quantifier = (Quantifier) quantifiers.previous();
 738                     cr.endblock();
 739                 }
 740                 cr.outputline("if ("+goodflag.getSafeSymbol()+")");
 741                 cr.startblock();
 742                 cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 743                 cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 744                 cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 745                 cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 746                 cr.outputline("delete "+newmodel.getSafeSymbol()+";");
 747                 cr.outputline("delete "+worklist.getSafeSymbol()+";");
 748                 cr.outputline("resettypemap();");
 749                 cr.outputline("break;");
 750                 cr.endblock();
 751                 cr.outputline("rebuild:");
 752                 cr.outputline(";");
 753                 cr.endblock();
 754                 cr.outputline("");
 755                 cr.outputline("");
 756             }
 757         }
 758     }
 759
 760     private MultUpdateNode getmultupdatenode(Conjunction conj, DNFPredicate dpred, int repairtype) {
 761         MultUpdateNode mun=null;
 762         GraphNode gn=(GraphNode) termination.conjtonodemap.get(conj);
 763         for(Iterator edgeit=gn.edges();(mun==null)&&edgeit.hasNext();) {
 764             GraphNode gn2=((GraphNode.Edge) edgeit.next()).getTarget();
 765             TermNode tn2=(TermNode)gn2.getOwner();
 766             if (tn2.getType()==TermNode.ABSTRACT) {
 767                 AbstractRepair ar=tn2.getAbstract();
 768                 if (((repairtype==-1)||(ar.getType()==repairtype))&&
 769                     ar.getPredicate()==dpred) {
 770                     for(Iterator edgeit2=gn2.edges();edgeit2.hasNext();) {
 771                         GraphNode gn3=((GraphNode.Edge) edgeit2.next()).getTarget();
 772                         if (!removed.contains(gn3)) {
 773                             TermNode tn3=(TermNode)gn3.getOwner();
 774                             if (tn3.getType()==TermNode.UPDATE) {
 775                                 mun=tn3.getUpdate();
 776                                 break;
 777                             }
 778                         }
 779                     }
 780                 }
 781             }
 782         }
 783         return mun;
 784     }
 785
 786     public void generatecomparisonrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
 787         MultUpdateNode munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
 788         MultUpdateNode munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
 789         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
 790         RelationDescriptor rd=(RelationDescriptor)ep.getDescriptor();
 791         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
 792         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
 793         boolean inverted=ep.inverted();
 794         boolean negated=dpred.isNegated();
 795         OpExpr expr=(OpExpr)ep.expr;
 796         Opcode opcode=expr.getOpcode();
 797         VarDescriptor leftside=VarDescriptor.makeNew("leftside");
 798         VarDescriptor rightside=VarDescriptor.makeNew("rightside");
 799         VarDescriptor newvalue=VarDescriptor.makeNew("newvalue");
 800         if (!inverted) {
 801             expr.getLeftExpr().generate(cr,leftside);
 802             expr.getRightExpr().generate(cr,newvalue);
 803             cr.outputline(rd.getRange().getType().getGenerateType().getSafeSymbol()+" "+rightside.getSafeSymbol()+";");
 804             cr.outputline(rd.getSafeSymbol()+"_hash->get("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 805         } else {
 806             expr.getLeftExpr().generate(cr,rightside);
 807             expr.getRightExpr().generate(cr,newvalue);
 808             cr.outputline(rd.getDomain().getType().getGenerateType().getSafeSymbol()+" "+leftside.getSafeSymbol()+";");
 809             cr.outputline(rd.getSafeSymbol()+"_hashinv->get("+leftside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 810         }
 811         if (negated)
 812             if (opcode==Opcode.GT) {
 813                 opcode=Opcode.LE;
 814             } else if (opcode==Opcode.GE) {
 815                 opcode=Opcode.LT;
 816             } else if (opcode==Opcode.LT) {
 817                 opcode=Opcode.GE;
 818             } else if (opcode==Opcode.LE) {
 819                 opcode=Opcode.GT;
 820             } else if (opcode==Opcode.EQ) {
 821                 opcode=Opcode.NE;
 822             } else if (opcode==Opcode.NE) {
 823                 opcode=Opcode.EQ;
 824             } else {
 825                 throw new Error("Unrecognized Opcode");
 826             }
 827
 828         if (opcode==Opcode.GT) {
 829             cr.outputline(newvalue.getSafeSymbol()+"++;");
 830         } else if (opcode==Opcode.GE) {
 831             /* Equal */
 832         } else if (opcode==Opcode.LT) {
 833             cr.outputline(newvalue.getSafeSymbol()+"--;");
 834         } else if (opcode==Opcode.LE) {
 835             /* Equal */
 836         } else if (opcode==Opcode.EQ) {
 837             /* Equal */
 838         } else if (opcode==Opcode.NE) {
 839             cr.outputline(newvalue.getSafeSymbol()+"++;");
 840         } else {
 841             throw new Error("Unrecognized Opcode");
 842         }
 843         /* Do abstract repairs */
 844         if (usageimage) {
 845             cr.outputline(rd.getSafeSymbol()+"_hash->remove("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 846             if (!inverted) {
 847                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
 848             } else {
 849                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 850             }
 851         }
 852         if (usageinvimage) {
 853             cr.outputline(rd.getSafeSymbol()+"_hashinv->remove("+rightside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 854             if (!inverted) {
 855                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newvalue.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 856             } else {
 857                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+rightside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
 858             }
 859         }
 860         /* Do concrete repairs */
 861         /* Start with scheduling removal */
 862         for(int i=0;i<state.vRules.size();i++) {
 863             Rule r=(Rule)state.vRules.get(i);
 864             if (r.getInclusion().getTargetDescriptors().contains(rd)) {
 865                 for(int j=0;j<munremove.numUpdates();j++) {
 866                     UpdateNode un=munremove.getUpdate(i);
 867                     if (un.getRule()==r) {
 868                         /* Update for rule r */
 869                         String name=(String)updatenames.get(un);
 870                         cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+");");
 871                     }
 872                 }
 873             }
 874         }
 875         /* Now do addition */
 876         UpdateNode un=munadd.getUpdate(0);
 877         String name=(String)updatenames.get(un);
 878         if (!inverted) {
 879             cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
 880         } else {
 881             cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 882         }
 883     }
 884
 885     public void generatesizerepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr) {
 886         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
 887         OpExpr expr=(OpExpr)ep.expr;
 888         Opcode opcode=expr.getOpcode();
 889         {
 890             boolean negated=dpred.isNegated();
 891             if (negated)
 892                 if (opcode==Opcode.GT) {
 893                     opcode=Opcode.LE;
 894                 } else if (opcode==Opcode.GE) {
 895                     opcode=Opcode.LT;
 896                 } else if (opcode==Opcode.LT) {
 897                     opcode=Opcode.GE;
 898                 } else if (opcode==Opcode.LE) {
 899                     opcode=Opcode.GT;
 900                 } else if (opcode==Opcode.EQ) {
 901                     opcode=Opcode.NE;
 902                 } else if (opcode==Opcode.NE) {
 903                     opcode=Opcode.EQ;
 904                 } else {
 905                     throw new Error("Unrecognized Opcode");
 906                 }
 907         }
 908         MultUpdateNode munremove;
 909
 910         MultUpdateNode munadd;
 911         if (ep.getDescriptor() instanceof RelationDescriptor) {
 912             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
 913             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
 914         } else {
 915             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMSET);
 916             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTOSET);
 917         }
 918         int size=ep.leftsize();
 919         VarDescriptor sizevar=VarDescriptor.makeNew("size");
 920         ((OpExpr)expr).left.generate(cr, sizevar);
 921         VarDescriptor change=VarDescriptor.makeNew("change");
 922         cr.outputline("int "+change.getSafeSymbol()+";");
 923         boolean generateadd=false;
 924         boolean generateremove=false;
 925         if (opcode==Opcode.GT) {
 926             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
 927             generateadd=true;
 928             generateremove=false;
 929         } else if (opcode==Opcode.GE) {
 930             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
 931             generateadd=true;
 932             generateremove=false;
 933         } else if (opcode==Opcode.LT) {
 934             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size-1)+"-"+sizevar.getSafeSymbol()+";");
 935             generateadd=false;
 936             generateremove=true;
 937         } else if (opcode==Opcode.LE) {
 938             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
 939             generateadd=false;
 940             generateremove=true;
 941         } else if (opcode==Opcode.EQ) {
 942             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
 943             generateadd=true;
 944             generateremove=true;
 945         } else if (opcode==Opcode.NE) {
 946             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
 947             generateadd=true;
 948             generateremove=false;
 949         } else {
 950             throw new Error("Unrecognized Opcode");
 951         }
 952         Descriptor d=ep.getDescriptor();
 953         if (generateremove) {
 954             cr.outputline("for(;"+change.getSafeSymbol()+"<0;"+change.getSafeSymbol()+"++)");
 955             cr.startblock();
 956             /* Find element to remove */
 957             VarDescriptor leftvar=VarDescriptor.makeNew("leftvar");
 958             VarDescriptor rightvar=VarDescriptor.makeNew("rightvar");
 959             if (d instanceof RelationDescriptor) {
 960                 if (ep.inverted()) {
 961                     rightvar=((ImageSetExpr)((SizeofExpr)((OpExpr)expr).left).setexpr).getVar();
 962                     cr.outputline("int "+leftvar.getSafeSymbol()+";");
 963                     cr.outputline(d.getSafeSymbol()+"_hashinv->get((int)"+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
 964                 } else {
 965                     leftvar=((ImageSetExpr)((SizeofExpr)((OpExpr)expr).left).setexpr).getVar();
 966                     cr.outputline("int "+rightvar.getSafeSymbol()+";");
 967                     cr.outputline(d.getSafeSymbol()+"_hash->get((int)"+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
 968                 }
 969             } else {
 970                 cr.outputline("int "+leftvar.getSafeSymbol()+"="+d.getSafeSymbol()+"_hash->firstkey();");
 971             }
 972             /* Generate abstract remove instruction */
 973             if (d instanceof RelationDescriptor) {
 974                 RelationDescriptor rd=(RelationDescriptor) d;
 975                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
 976                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
 977                 if (usageimage)
 978                     cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar + ", (int)" + rightvar + ");");
 979                 if (usageinvimage)
 980                     cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar + ", (int)" + leftvar + ");");
 981             } else {
 982                 cr.outputline(d.getSafeSymbol() + "_hash->remove((int)" + leftvar + ", (int)" + leftvar + ");");
 983             }
 984             /* Generate concrete remove instruction */
 985             for(int i=0;i<state.vRules.size();i++) {
 986                 Rule r=(Rule)state.vRules.get(i);
 987                 if (r.getInclusion().getTargetDescriptors().contains(d)) {
 988                     for(int j=0;j<munremove.numUpdates();j++) {
 989                         UpdateNode un=munremove.getUpdate(i);
 990                         if (un.getRule()==r) {
 991                                 /* Update for rule rule r */
 992                             String name=(String)updatenames.get(un);
 993                             if (d instanceof RelationDescriptor) {
 994                                 cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
 995                             } else {
 996                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
 997                             }
 998                         }
 999                     }
1000                 }
1001             }
1002             cr.endblock();
1003         }
1004         if (generateadd) {
1005
1006             cr.outputline("for(;"+change.getSafeSymbol()+">0;"+change.getSafeSymbol()+"--)");
1007             cr.startblock();
1008             VarDescriptor newobject=VarDescriptor.makeNew("newobject");
1009             if (d instanceof RelationDescriptor) {
1010                 VarDescriptor otherside=((ImageSetExpr)((SizeofExpr)ep.expr).setexpr).vd;
1011                 RelationDescriptor rd=(RelationDescriptor)d;
1012                 if (sources.relsetSource(rd,!ep.inverted())) {
1013                     /* Set Source */
1014                     SetDescriptor sd=sources.relgetSourceSet(rd,!ep.inverted());
1015                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1016                     cr.outputline(sd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1017                     cr.outputline("for("+iterator.getSafeSymbol()+"="+sd.getSafeSymbol()+"_hash->iterator();"+iterator.getSafeSymbol()+".hasNext();)");
1018                     cr.startblock();
1019                     if (ep.inverted()) {
1020                         cr.outputline("if !"+rd.getSafeSymbol()+"_hashinv->contains("+iterator.getSafeSymbol()+"->key(),"+otherside.getSafeSymbol()+")");
1021                     } else {
1022                         cr.outputline("if !"+rd.getSafeSymbol()+"_hash->contains("+otherside.getSafeSymbol()+","+iterator.getSafeSymbol()+"->key())");
1023                     }
1024                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1025                     cr.outputline(iterator.getSafeSymbol()+"->next();");
1026                     cr.endblock();
1027                 } else if (sources.relallocSource(rd,!ep.inverted())) {
1028                     /* Allocation Source*/
1029                     sources.relgenerateSourceAlloc(cr,newobject,rd,!ep.inverted());
1030                 } else throw new Error("No source for adding to Relation");
1031                 if (ep.inverted()) {
1032                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1033                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1034                     if (usageimage)
1035                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1036                     if (usageinvimage)
1037                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1038
1039                     UpdateNode un=munadd.getUpdate(0);
1040                     String name=(String)updatenames.get(un);
1041                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1042                 } else {
1043                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1044                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1045                     if (usageimage)
1046                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1047                     if (usageinvimage)
1048                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1049                     UpdateNode un=munadd.getUpdate(0);
1050                     String name=(String)updatenames.get(un);
1051                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1052                 }
1053             } else {
1054                 SetDescriptor sd=(SetDescriptor)d;
1055                 if (sources.setSource(sd)) {
1056                     /* Set Source */
1057                     /* Set Source */
1058                     SetDescriptor sourcesd=sources.getSourceSet(sd);
1059                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1060                     cr.outputline(sourcesd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1061                     cr.outputline("for("+iterator.getSafeSymbol()+"="+sourcesd.getSafeSymbol()+"_hash->iterator();"+iterator.getSafeSymbol()+".hasNext();)");
1062                     cr.startblock();
1063                     cr.outputline("if !"+sd.getSafeSymbol()+"_hash->contains("+iterator.getSafeSymbol()+"->key())");
1064                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1065                     cr.outputline(iterator.getSafeSymbol()+"->next();");
1066                     cr.endblock();
1067                 } else if (sources.allocSource(sd)) {
1068                     /* Allocation Source*/
1069                     sources.generateSourceAlloc(cr,newobject,sd);
1070                 } else throw new Error("No source for adding to Set");
1071                 cr.outputline(sd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1072                 UpdateNode un=munadd.getUpdate(0);
1073                 String name=(String)updatenames.get(un);
1074                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1075             }
1076             cr.endblock();
1077         }
1078     }
1079
1080     public void generateinclusionrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
1081         InclusionPredicate ip=(InclusionPredicate) dpred.getPredicate();
1082         boolean negated=dpred.isNegated();
1083         MultUpdateNode mun=getmultupdatenode(conj,dpred,-1);
1084         VarDescriptor leftvar=VarDescriptor.makeNew("left");
1085         ip.expr.generate(cr, leftvar);
1086
1087         if (negated) {
1088             if (ip.setexpr instanceof ImageSetExpr) {
1089                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1090                 VarDescriptor rightvar=ise.getVar();
1091                 boolean inverse=ise.inverted();
1092                 RelationDescriptor rd=ise.getRelation();
1093                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1094                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1095                 if (inverse) {
1096                     if (usageimage)
1097                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + rightvar + ", (int)" + leftvar + ");");
1098                     if (usageinvimage)
1099                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + leftvar + ", (int)" + rightvar + ");");
1100                 } else {
1101                     if (usageimage)
1102                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar + ", (int)" + rightvar + ");");
1103                     if (usageinvimage)
1104                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar + ", (int)" + leftvar + ");");
1105                 }
1106                 for(int i=0;i<state.vRules.size();i++) {
1107                     Rule r=(Rule)state.vRules.get(i);
1108                     if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1109                         for(int j=0;j<mun.numUpdates();j++) {
1110                             UpdateNode un=mun.getUpdate(i);
1111                             if (un.getRule()==r) {
1112                                 /* Update for rule rule r */
1113                                 String name=(String)updatenames.get(un);
1114                                 if (inverse) {
1115                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1116                                 } else {
1117                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1118                                 }
1119                             }
1120                         }
1121                     }
1122                 }
1123             } else {
1124                 SetDescriptor sd=ip.setexpr.sd;
1125                 cr.outputline(sd.getSafeSymbol() + "_hash->remove((int)" + leftvar + ", (int)" + leftvar + ");");
1126
1127                 for(int i=0;i<state.vRules.size();i++) {
1128                     Rule r=(Rule)state.vRules.get(i);
1129                     if (r.getInclusion().getTargetDescriptors().contains(sd)) {
1130                         for(int j=0;j<mun.numUpdates();j++) {
1131                             UpdateNode un=mun.getUpdate(i);
1132                             if (un.getRule()==r) {
1133                                 /* Update for rule rule r */
1134                                 String name=(String)updatenames.get(un);
1135                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+sd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1136                             }
1137                         }
1138                     }
1139                 }
1140             }
1141         } else {
1142             /* Generate update */
1143             if (ip.setexpr instanceof ImageSetExpr) {
1144                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1145                 VarDescriptor rightvar=ise.getVar();
1146                 boolean inverse=ise.inverted();
1147                 RelationDescriptor rd=ise.getRelation();
1148                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1149                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1150                 if (inverse) {
1151                     if (usageimage)
1152                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + rightvar + ", (int)" + leftvar + ");");
1153                     if (usageinvimage)
1154                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + leftvar + ", (int)" + rightvar + ");");
1155                 } else {
1156                     if (usageimage)
1157                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + leftvar + ", (int)" + rightvar + ");");
1158                     if (usageinvimage)
1159                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar + ", (int)" + leftvar + ");");
1160                 }
1161                 UpdateNode un=mun.getUpdate(0);
1162                 String name=(String)updatenames.get(un);
1163                 if (inverse) {
1164                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1165                 } else {
1166                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1167                 }
1168             } else {
1169                 SetDescriptor sd=ip.setexpr.sd;
1170                 cr.outputline(sd.getSafeSymbol() + "_hash->add((int)" + leftvar + ", (int)" + leftvar + ");");
1171
1172                 UpdateNode un=mun.getUpdate(0);
1173                 /* Update for rule rule r */
1174                 String name=(String)updatenames.get(un);
1175                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1176             }
1177         }
1178     }
1179
1180
1181
1182     public static Vector getrulelist(Descriptor d) {
1183         Vector dispatchrules = new Vector();
1184         Vector rules = State.currentState.vRules;
1185
1186         for (int i = 0; i < rules.size(); i++) {
1187             Rule rule = (Rule) rules.elementAt(i);
1188             Set requiredsymbols = rule.getRequiredDescriptors();
1189
1190             // #TBD#: in general this is wrong because these descriptors may contain descriptors
1191             // bound in "in?" expressions which need to be dealt with in a topologically sorted
1192             // fashion...
1193
1194             if (rule.getRequiredDescriptors().contains(d)) {
1195                 dispatchrules.addElement(rule);
1196             }
1197         }
1198         return dispatchrules;
1199     }
1200
1201     private boolean need_compensation(Rule r) {
1202         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1203         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1204             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1205             GraphNode gn2=edge.getTarget();
1206             if (!removed.contains(gn2)) {
1207                 TermNode tn2=(TermNode)gn2.getOwner();
1208                 if (tn2.getType()==TermNode.CONSEQUENCE)
1209                     return false;
1210             }
1211         }
1212         return true;
1213     }
1214
1215     private UpdateNode find_compensation(Rule r) {
1216         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1217         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1218             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1219             GraphNode gn2=edge.getTarget();
1220             if (!removed.contains(gn2)) {
1221                 TermNode tn2=(TermNode)gn2.getOwner();
1222                 if (tn2.getType()==TermNode.UPDATE) {
1223                     MultUpdateNode mun=tn2.getUpdate();
1224                     for(int i=0;i<mun.numUpdates();i++) {
1225                         UpdateNode un=mun.getUpdate(i);
1226                         if (un.getRule()==r)
1227                             return un;
1228                     }
1229                 }
1230             }
1231         }
1232         throw new Error("No Compensation Update could be found");
1233     }
1234
1235     public void generate_dispatch(CodeWriter cr, RelationDescriptor rd, String leftvar, String rightvar) {
1236         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1237         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1238
1239         if (!(usageinvimage||usageimage)) /* not used at all*/
1240             return;
1241
1242         cr.outputline("// RELATION DISPATCH ");
1243         cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1244         if (usageimage)
1245             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hash->contains("+leftvar+","+rightvar+"))");
1246         else
1247             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hashinv->contains("+rightvar+","+leftvar+"))");
1248         cr.startblock(); {
1249             /* Adding new item */
1250             /* Perform safety checks */
1251             cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1252             cr.outputline(repairtable.getSafeSymbol()+"->containsrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+"))");
1253             cr.startblock(); {
1254                 /* Have update to call into */
1255                 VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1256                 String parttype="";
1257                 for(int i=0;i<currentrule.numQuantifiers();i++) {
1258                     if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1259                         parttype=parttype+", int, int";
1260                     else
1261                         parttype=parttype+", int";
1262                 }
1263                 cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")=");
1264                 cr.outputline("(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+repairtable.getSafeSymbol()+"->getrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1265                 String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1266                 for(int i=0;i<currentrule.numQuantifiers();i++) {
1267                     Quantifier q=currentrule.getQuantifier(i);
1268                     if (q instanceof SetQuantifier) {
1269                         SetQuantifier sq=(SetQuantifier) q;
1270                         methodcall+=","+sq.getVar().getSafeSymbol();
1271                     } else if (q instanceof RelationQuantifier) {
1272                         RelationQuantifier rq=(RelationQuantifier) q;
1273                         methodcall+=","+rq.x.getSafeSymbol();
1274                         methodcall+=","+rq.y.getSafeSymbol();
1275                     } else if (q instanceof ForQuantifier) {
1276                         ForQuantifier fq=(ForQuantifier) q;
1277                         methodcall+=","+fq.getVar().getSafeSymbol();
1278                     }
1279                 }
1280                 methodcall+=");";
1281                 cr.outputline(methodcall);
1282                 cr.outputline(goodflag.getSafeSymbol()+"=0;");
1283                 cr.outputline("continue;");
1284             }
1285             cr.endblock();
1286             /* Build standard compensation actions */
1287             if (need_compensation(currentrule)) {
1288                 UpdateNode un=find_compensation(currentrule);
1289                 String name=(String)updatenames.get(un);
1290                 usedupdates.add(un); /* Mark as used */
1291                 String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1292                 for(int i=0;i<currentrule.numQuantifiers();i++) {
1293                     Quantifier q=currentrule.getQuantifier(i);
1294                     if (q instanceof SetQuantifier) {
1295                         SetQuantifier sq=(SetQuantifier) q;
1296                         methodcall+=","+sq.getVar().getSafeSymbol();
1297                     } else if (q instanceof RelationQuantifier) {
1298                         RelationQuantifier rq=(RelationQuantifier) q;
1299                         methodcall+=","+rq.x.getSafeSymbol();
1300                         methodcall+=","+rq.y.getSafeSymbol();
1301                     } else if (q instanceof ForQuantifier) {
1302                         ForQuantifier fq=(ForQuantifier) q;
1303                         methodcall+=","+fq.getVar().getSafeSymbol();
1304                     }
1305                 }
1306                 methodcall+=");";
1307                 cr.outputline(methodcall);
1308                 cr.outputline(goodflag.getSafeSymbol()+"=0;");
1309                 cr.outputline("continue;");
1310             }
1311         }
1312         cr.endblock();
1313
1314         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1315         cr.outputline("int " + addeditem + ";");
1316         if (rd.testUsage(RelationDescriptor.IMAGE)) {
1317             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hash->add((int)" + leftvar + ", (int)" + rightvar + ");");
1318         }
1319
1320         if (rd.testUsage(RelationDescriptor.INVIMAGE)) {
1321             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar + ", (int)" + leftvar + ");");
1322         }
1323
1324         cr.outputline("if (" + addeditem + ")");
1325         cr.startblock();
1326
1327         Vector dispatchrules = getrulelist(rd);
1328
1329         if (dispatchrules.size() == 0) {
1330             cr.outputline("// nothing to dispatch");
1331             cr.endblock();
1332             return;
1333         }
1334
1335         for(int i = 0; i < dispatchrules.size(); i++) {
1336             Rule rule = (Rule) dispatchrules.elementAt(i);
1337             if (rule.getGuardExpr().getRequiredDescriptors().contains(rd)) {
1338                 /* Guard depends on this relation, so we recomput everything */
1339                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1340             } else {
1341                 for (int j=0;j<rule.numQuantifiers();j++) {
1342                     Quantifier q=rule.getQuantifier(j);
1343                     if (q.getRequiredDescriptors().contains(rd)) {
1344                         /* Generate add */
1345                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+leftvar+","+rightvar+");");
1346                     }
1347                 }
1348             }
1349         }
1350         cr.endblock();
1351     }
1352
1353
1354     public void generate_dispatch(CodeWriter cr, SetDescriptor sd, String setvar) {
1355
1356         cr.outputline("// SET DISPATCH ");
1357
1358         cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1359         cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+sd.getJustSafeSymbol()+"_hash->contains("+setvar+"))");
1360         cr.startblock(); {
1361             /* Adding new item */
1362             /* Perform safety checks */
1363             cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1364             cr.outputline(repairtable.getSafeSymbol()+"->containsset("+sd.getNum()+","+currentrule.getNum()+","+setvar+"))");
1365             cr.startblock(); {
1366                 /* Have update to call into */
1367                 VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1368                 String parttype="";
1369                 for(int i=0;i<currentrule.numQuantifiers();i++) {
1370                     if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1371                         parttype=parttype+", int, int";
1372                     else
1373                         parttype=parttype+", int";
1374                 }
1375                 cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")=");
1376                 cr.outputline("(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+repairtable.getSafeSymbol()+"->getset("+sd.getNum()+","+currentrule.getNum()+","+setvar+");");
1377                 String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+
1378                               repairtable.getSafeSymbol();
1379                 for(int i=0;i<currentrule.numQuantifiers();i++) {
1380                     Quantifier q=currentrule.getQuantifier(i);
1381                     if (q instanceof SetQuantifier) {
1382                         SetQuantifier sq=(SetQuantifier) q;
1383                         methodcall+=","+sq.getVar().getSafeSymbol();
1384                     } else if (q instanceof RelationQuantifier) {
1385                         RelationQuantifier rq=(RelationQuantifier) q;
1386                         methodcall+=","+rq.x.getSafeSymbol();
1387                         methodcall+=","+rq.y.getSafeSymbol();
1388                     } else if (q instanceof ForQuantifier) {
1389                         ForQuantifier fq=(ForQuantifier) q;
1390                         methodcall+=","+fq.getVar().getSafeSymbol();
1391                     }
1392                 }
1393                 methodcall+=");";
1394                 cr.outputline(methodcall);
1395                 cr.outputline(goodflag.getSafeSymbol()+"=0;");
1396                 cr.outputline("continue;");
1397             }
1398             cr.endblock();
1399             /* Build standard compensation actions */
1400             if (need_compensation(currentrule)) {
1401                 UpdateNode un=find_compensation(currentrule);
1402                 String name=(String)updatenames.get(un);
1403                 usedupdates.add(un); /* Mark as used */
1404
1405                 String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+
1406                               repairtable.getSafeSymbol();
1407                 for(int i=0;i<currentrule.numQuantifiers();i++) {
1408                     Quantifier q=currentrule.getQuantifier(i);
1409                     if (q instanceof SetQuantifier) {
1410                         SetQuantifier sq=(SetQuantifier) q;
1411                         methodcall+=","+sq.getVar().getSafeSymbol();
1412                     } else if (q instanceof RelationQuantifier) {
1413                         RelationQuantifier rq=(RelationQuantifier) q;
1414                         methodcall+=","+rq.x.getSafeSymbol();
1415                         methodcall+=","+rq.y.getSafeSymbol();
1416                     } else if (q instanceof ForQuantifier) {
1417                         ForQuantifier fq=(ForQuantifier) q;
1418                         methodcall+=","+fq.getVar().getSafeSymbol();
1419                     }
1420                 }
1421                 methodcall+=");";
1422                 cr.outputline(methodcall);
1423                 cr.outputline(goodflag.getSafeSymbol()+"=0;");
1424                 cr.outputline("continue;");
1425             }
1426         }
1427         cr.endblock();
1428
1429         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1430         cr.outputline("int " + addeditem + " = 1;");
1431         cr.outputline(addeditem + " = " + sd.getSafeSymbol() + "_hash->add((int)" + setvar +  ", (int)" + setvar + ");");
1432         cr.startblock();
1433         Vector dispatchrules = getrulelist(sd);
1434
1435         if (dispatchrules.size() == 0) {
1436             cr.outputline("// nothing to dispatch");
1437             cr.endblock();
1438             return;
1439         }
1440
1441         for(int i = 0; i < dispatchrules.size(); i++) {
1442             Rule rule = (Rule) dispatchrules.elementAt(i);
1443             if (SetDescriptor.expand(rule.getGuardExpr().getRequiredDescriptors()).contains(sd)) {
1444                 /* Guard depends on this relation, so we recompute everything */
1445                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1446             } else {
1447                 for (int j=0;j<rule.numQuantifiers();j++) {
1448                     Quantifier q=rule.getQuantifier(j);
1449                     if (SetDescriptor.expand(q.getRequiredDescriptors()).contains(sd)) {
1450                         /* Generate add */
1451                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+setvar+",0);");
1452                     }
1453                 }
1454             }
1455         }
1456         cr.endblock();
1457     }
1458 }