Repair/RepairCompiler/MCC/IR/RepairGenerator.java

   1 package MCC.IR;
   2
   3 import java.io.*;
   4 import java.util.*;
   5 import MCC.State;
   6 import MCC.Compiler;
   7
   8 public class RepairGenerator {
   9     State state;
  10     java.io.PrintWriter outputrepair = null;
  11     java.io.PrintWriter outputaux = null;
  12     java.io.PrintWriter outputhead = null;
  13     String name="foo";
  14     String headername;
  15     static VarDescriptor oldmodel=null;
  16     static VarDescriptor newmodel=null;
  17     static VarDescriptor worklist=null;
  18     static VarDescriptor repairtable=null;
  19     static VarDescriptor goodflag=null;
  20     Rule currentrule=null;
  21     Hashtable updatenames;
  22     HashSet usedupdates;
  23     Termination termination;
  24     Set removed;
  25     HashSet togenerate;
  26     static boolean DEBUG=false;
  27     Cost cost;
  28     Sources sources;
  29     ModelRuleDependence mrd;
  30
  31     public RepairGenerator(State state, Termination t) {
  32         this.state = state;
  33         updatenames=new Hashtable();
  34         usedupdates=new HashSet();
  35         termination=t;
  36         removed=t.removedset;
  37         togenerate=new HashSet();
  38         togenerate.addAll(termination.conjunctions);
  39         if (Compiler.REPAIR)
  40             togenerate.removeAll(removed);
  41         GraphNode.computeclosure(togenerate,removed);
  42         cost=new Cost();
  43         sources=new Sources(state);
  44         mrd=ModelRuleDependence.doAnalysis(state);
  45         Repair.repairgenerator=this;
  46     }
  47
  48     private void generatetypechecks(boolean flag) {
  49         if (flag) {
  50             DotExpr.DOTYPECHECKS=true;
  51             VarExpr.DOTYPECHECKS=true;
  52             DotExpr.DONULL=true;
  53             VarExpr.DONULL=true;
  54         } else {
  55             VarExpr.DOTYPECHECKS=false;
  56             DotExpr.DOTYPECHECKS=false;
  57             VarExpr.DONULL=true;
  58             DotExpr.DONULL=true;
  59         }
  60     }
  61
  62
  63     private void name_updates() {
  64         int count=0;
  65         for(Iterator it=termination.updatenodes.iterator();it.hasNext();) {
  66             GraphNode gn=(GraphNode) it.next();
  67             TermNode tn=(TermNode) gn.getOwner();
  68             MultUpdateNode mun=tn.getUpdate();
  69             if (togenerate.contains(gn))
  70             for (int i=0;i<mun.numUpdates();i++) {
  71                 UpdateNode un=mun.getUpdate(i);
  72                 String name="update"+String.valueOf(count++);
  73                 updatenames.put(un,name);
  74             }
  75         }
  76     }
  77
  78     public void generate(OutputStream outputrepair, OutputStream outputaux,OutputStream outputhead, String st) {
  79         this.outputrepair = new java.io.PrintWriter(outputrepair, true);
  80         this.outputaux = new java.io.PrintWriter(outputaux, true);
  81         this.outputhead = new java.io.PrintWriter(outputhead, true);
  82         headername=st;
  83         name_updates();
  84         generatetypechecks(true);
  85         generate_tokentable();
  86         generate_hashtables();
  87         generate_stateobject();
  88         generate_call();
  89         generate_start();
  90         generate_rules();
  91         generate_checks();
  92         generate_teardown();
  93         CodeWriter crhead = new StandardCodeWriter(this.outputhead);
  94         CodeWriter craux = new StandardCodeWriter(this.outputaux);
  95         crhead.outputline("};");
  96         craux.outputline("}");
  97         generatetypechecks(false);
  98         generate_computesizes();
  99         generatetypechecks(true);
 100         generate_recomputesizes();
 101         generatetypechecks(false);
 102         generate_updates();
 103         StructureGenerator sg=new StructureGenerator(state,this);
 104         sg.buildall();
 105         crhead.outputline("#endif");
 106     }
 107
 108     String ststate="state";
 109     String stmodel="model";
 110     String strepairtable="repairtable";
 111     String stleft="left";
 112     String stright="right";
 113     String stnew="newvalue";
 114
 115     private void generate_updates() {
 116         int count=0;
 117         CodeWriter crhead = new StandardCodeWriter(outputhead);
 118         CodeWriter craux = new StandardCodeWriter(outputaux);
 119
 120         /* Rewrite globals */
 121
 122         for (Iterator it=this.state.stGlobals.descriptors();it.hasNext();) {
 123             VarDescriptor vd=(VarDescriptor)it.next();
 124             craux.outputline("#define "+vd.getSafeSymbol()+" "+ststate+"->"+vd.getSafeSymbol());
 125         }
 126
 127         for(Iterator it=termination.updatenodes.iterator();it.hasNext();) {
 128             GraphNode gn=(GraphNode) it.next();
 129             TermNode tn=(TermNode) gn.getOwner();
 130             MultUpdateNode mun=tn.getUpdate();
 131             boolean isrelation=(mun.getDescriptor() instanceof RelationDescriptor);
 132             if (togenerate.contains(gn))
 133             for (int i=0;i<mun.numUpdates();i++) {
 134                 UpdateNode un=mun.getUpdate(i);
 135                 String methodname=(String)updatenames.get(un);
 136
 137                 switch(mun.op) {
 138                 case MultUpdateNode.ADD:
 139                     if (isrelation) {
 140                         crhead.outputline("void "+methodname+"("+name+"_state * " +ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+", int "+stright+");");
 141                         craux.outputline("void "+methodname+"("+name+"_state * "+ ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+", int "+stright+")");
 142                     } else {
 143                         crhead.outputline("void "+methodname+"("+name+"_state * "+ ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+");");
 144                         craux.outputline("void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+")");
 145                     }
 146                     craux.startblock();
 147                     craux.outputline("int maybe=0;");
 148                     final SymbolTable st = un.getRule().getSymbolTable();
 149                     CodeWriter cr = new StandardCodeWriter(outputaux) {
 150                         public SymbolTable getSymbolTable() { return st; }
 151                     };
 152                     un.generate(cr, false, false, stleft,stright, null,this);
 153                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 154                     craux.endblock();
 155                     break;
 156                 case MultUpdateNode.REMOVE: {
 157                     Rule r=un.getRule();
 158                     String methodcall="void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable;
 159                     for(int j=0;j<r.numQuantifiers();j++) {
 160                         Quantifier q=r.getQuantifier(j);
 161                         if (q instanceof SetQuantifier) {
 162                             SetQuantifier sq=(SetQuantifier) q;
 163                             methodcall+=","+sq.getVar().getType().getGenerateType().getSafeSymbol()+" "+sq.getVar().getSafeSymbol();
 164                         } else if (q instanceof RelationQuantifier) {
 165                             RelationQuantifier rq=(RelationQuantifier) q;
 166
 167                             methodcall+=","+rq.x.getType().getGenerateType().getSafeSymbol()+" "+rq.x.getSafeSymbol();
 168                             methodcall+=","+rq.y.getType().getGenerateType().getSafeSymbol()+" "+rq.y.getSafeSymbol();
 169                         } else if (q instanceof ForQuantifier) {
 170                             ForQuantifier fq=(ForQuantifier) q;
 171                             methodcall+=",int "+fq.getVar().getSafeSymbol();
 172                         }
 173                     }
 174                     methodcall+=")";
 175                     crhead.outputline(methodcall+";");
 176                     craux.outputline(methodcall);
 177                     craux.startblock();
 178                     craux.outputline("int maybe=0;");
 179                     final SymbolTable st2 = un.getRule().getSymbolTable();
 180                     CodeWriter cr2 = new StandardCodeWriter(outputaux) {
 181                         public SymbolTable getSymbolTable() { return st2; }
 182                     };
 183                     un.generate(cr2, true, false, null,null, null,this);
 184                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 185                     craux.endblock();
 186                 }
 187                     break;
 188                 case MultUpdateNode.MODIFY: {
 189                     Rule r=un.getRule();
 190                     String methodcall="void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable;
 191                     for(int j=0;j<r.numQuantifiers();j++) {
 192                         Quantifier q=r.getQuantifier(j);
 193                         if (q instanceof SetQuantifier) {
 194                             SetQuantifier sq=(SetQuantifier) q;
 195                             methodcall+=","+sq.getVar().getType().getGenerateType().getSafeSymbol()+" "+sq.getVar().getSafeSymbol();
 196                         } else if (q instanceof RelationQuantifier) {
 197                             RelationQuantifier rq=(RelationQuantifier) q;
 198
 199                             methodcall+=", "+rq.x.getType().getGenerateType().getSafeSymbol()+" "+rq.x.getSafeSymbol();
 200                             methodcall+=", "+rq.y.getType().getGenerateType().getSafeSymbol()+" "+rq.y.getSafeSymbol();
 201                         } else if (q instanceof ForQuantifier) {
 202                             ForQuantifier fq=(ForQuantifier) q;
 203                             methodcall+=", int "+fq.getVar().getSafeSymbol();
 204                         }
 205                     }
 206                     methodcall+=", "+stleft+", "+stright+", "+stnew;
 207                     methodcall+=")";
 208                     crhead.outputline(methodcall+";");
 209                     craux.outputline(methodcall);
 210                     craux.startblock();
 211                     craux.outputline("int maybe=0;");
 212                     final SymbolTable st2 = un.getRule().getSymbolTable();
 213                     CodeWriter cr2 = new StandardCodeWriter(outputaux) {
 214                         public SymbolTable getSymbolTable() { return st2; }
 215                     };
 216                     un.generate(cr2, false, true, stleft, stright, stnew, this);
 217                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 218                     craux.endblock();
 219                 }
 220                     break;
 221
 222                 default:
 223                     throw new Error("Nonimplement Update");
 224                 }
 225             }
 226         }
 227     }
 228
 229     private void generate_call() {
 230         CodeWriter cr = new StandardCodeWriter(outputrepair);
 231         VarDescriptor vdstate=VarDescriptor.makeNew("repairstate");
 232         cr.outputline(name+"_state * "+vdstate.getSafeSymbol()+"=new "+name+"_state();");
 233         Iterator globals=state.stGlobals.descriptors();
 234         while (globals.hasNext()) {
 235             VarDescriptor vd=(VarDescriptor) globals.next();
 236             cr.outputline(vdstate.getSafeSymbol()+"->"+vd.getSafeSymbol()+"=("+vd.getType().getGenerateType().getSafeSymbol()+")"+vd.getSafeSymbol()+";");
 237         }
 238         /* Insert repair here */
 239         cr.outputline(vdstate.getSafeSymbol()+"->doanalysis();");
 240         globals=state.stGlobals.descriptors();
 241         while (globals.hasNext()) {
 242             VarDescriptor vd=(VarDescriptor) globals.next();
 243             cr.outputline("*(("+vd.getType().getGenerateType().getSafeSymbol()+"*) &"+vd.getSafeSymbol()+")="+vdstate.getSafeSymbol()+"->"+vd.getSafeSymbol()+";");
 244         }
 245         cr.outputline("delete "+vdstate.getSafeSymbol()+";");
 246     }
 247
 248     private void generate_tokentable() {
 249         CodeWriter cr = new StandardCodeWriter(outputrepair);
 250         Iterator tokens = TokenLiteralExpr.tokens.keySet().iterator();
 251
 252         cr.outputline("");
 253         cr.outputline("// Token values");
 254         cr.outputline("");
 255
 256         while (tokens.hasNext()) {
 257             Object token = tokens.next();
 258             cr.outputline("// " + token.toString() + " = " + TokenLiteralExpr.tokens.get(token).toString());
 259         }
 260
 261         cr.outputline("");
 262         cr.outputline("");
 263     }
 264
 265     private void generate_stateobject() {
 266         CodeWriter crhead = new StandardCodeWriter(outputhead);
 267         crhead.outputline("class "+name+"_state {");
 268         crhead.outputline("public:");
 269         Iterator globals=state.stGlobals.descriptors();
 270         while (globals.hasNext()) {
 271             VarDescriptor vd=(VarDescriptor) globals.next();
 272             crhead.outputline(vd.getType().getGenerateType().getSafeSymbol()+" "+vd.getSafeSymbol()+";");
 273         }
 274         crhead.outputline("void computesizes(int *,int **);");
 275         crhead.outputline("void recomputesizes();");
 276     }
 277
 278     private void generate_computesizes() {
 279         int max=TypeDescriptor.counter;
 280         TypeDescriptor[] tdarray=new TypeDescriptor[max];
 281         for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 282             TypeDescriptor ttd=(TypeDescriptor)it.next();
 283             tdarray[ttd.getId()]=ttd;
 284         }
 285         final SymbolTable st = state.stGlobals;
 286         CodeWriter cr = new StandardCodeWriter(outputaux) {
 287                 public SymbolTable getSymbolTable() { return st; }
 288             };
 289
 290         cr.outputline("void "+name+"_state::computesizes(int *sizearray,int **numele) {");
 291         for(int i=0;i<max;i++) {
 292             TypeDescriptor td=tdarray[i];
 293             Expr size=td.getSizeExpr();
 294             VarDescriptor vd=VarDescriptor.makeNew("size");
 295             size.generate(cr,vd);
 296             cr.outputline("sizearray["+i+"]="+vd.getSafeSymbol()+";");
 297         }
 298         for(int i=0;i<max;i++) {
 299             TypeDescriptor td=tdarray[i];
 300             if (td instanceof StructureTypeDescriptor) {
 301                 StructureTypeDescriptor std=(StructureTypeDescriptor) td;
 302                 for(int j=0;j<std.fieldlist.size();j++) {
 303                     FieldDescriptor fd=(FieldDescriptor)std.fieldlist.get(j);
 304                     if (fd instanceof ArrayDescriptor) {
 305                         ArrayDescriptor ad=(ArrayDescriptor)fd;
 306                         Expr index=ad.getIndexBound();
 307                         VarDescriptor vd=VarDescriptor.makeNew("index");
 308                         index.generate(cr,vd);
 309                         cr.outputline("numele["+i+"]["+j+"]="+vd.getSafeSymbol()+";");
 310                     }
 311                 }
 312             }
 313         }
 314         cr.outputline("}");
 315     }
 316
 317     private void generate_recomputesizes() {
 318         int max=TypeDescriptor.counter;
 319         TypeDescriptor[] tdarray=new TypeDescriptor[max];
 320         for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 321             TypeDescriptor ttd=(TypeDescriptor)it.next();
 322             tdarray[ttd.getId()]=ttd;
 323         }
 324         final SymbolTable st = state.stGlobals;
 325         CodeWriter cr = new StandardCodeWriter(outputaux) {
 326                 public SymbolTable getSymbolTable() { return st; }
 327             };
 328         cr.outputline("void "+name+"_state::recomputesizes() {");
 329         for(int i=0;i<max;i++) {
 330             TypeDescriptor td=tdarray[i];
 331             Expr size=td.getSizeExpr();
 332             VarDescriptor vd=VarDescriptor.makeNew("size");
 333             size.generate(cr,vd);
 334         }
 335         for(int i=0;i<max;i++) {
 336             TypeDescriptor td=tdarray[i];
 337             if (td instanceof StructureTypeDescriptor) {
 338                 StructureTypeDescriptor std=(StructureTypeDescriptor) td;
 339                 for(int j=0;j<std.fieldlist.size();j++) {
 340                     FieldDescriptor fd=(FieldDescriptor)std.fieldlist.get(j);
 341                     if (fd instanceof ArrayDescriptor) {
 342                         ArrayDescriptor ad=(ArrayDescriptor)fd;
 343                         Expr index=ad.getIndexBound();
 344                         VarDescriptor vd=VarDescriptor.makeNew("index");
 345                         index.generate(cr,vd);
 346                     }
 347                 }
 348             }
 349         }
 350         cr.outputline("}");
 351     }
 352
 353
 354     private void generate_hashtables() {
 355         CodeWriter craux = new StandardCodeWriter(outputaux);
 356         CodeWriter crhead = new StandardCodeWriter(outputhead);
 357         crhead.outputline("#ifndef "+name+"_h");
 358         crhead.outputline("#define "+name+"_h");
 359         crhead.outputline("#include \"SimpleHash.h\"");
 360         crhead.outputline("extern \"C\" {");
 361         crhead.outputline("#include \"instrument.h\"");
 362         crhead.outputline("}");
 363         crhead.outputline("#include <stdio.h>");
 364         crhead.outputline("#include <stdlib.h>");
 365         crhead.outputline("class "+name+" {");
 366         crhead.outputline("public:");
 367         crhead.outputline(name+"();");
 368         crhead.outputline("~"+name+"();");
 369         craux.outputline("#include \""+headername+"\"");
 370         craux.outputline("#include \"size.h\"");
 371
 372         craux.outputline(name+"::"+name+"() {");
 373         craux.outputline("// creating hashtables ");
 374
 375         /* build sets */
 376         Iterator sets = state.stSets.descriptors();
 377
 378         /* first pass create all the hash tables */
 379         while (sets.hasNext()) {
 380             SetDescriptor set = (SetDescriptor) sets.next();
 381             crhead.outputline("SimpleHash* " + set.getSafeSymbol() + "_hash;");
 382             craux.outputline(set.getSafeSymbol() + "_hash = new SimpleHash();");
 383         }
 384
 385         /* second pass build relationships between hashtables */
 386         sets = state.stSets.descriptors();
 387
 388         while (sets.hasNext()) {
 389             SetDescriptor set = (SetDescriptor) sets.next();
 390             Iterator subsets = set.subsets();
 391
 392             while (subsets.hasNext()) {
 393                 SetDescriptor subset = (SetDescriptor) subsets.next();
 394                 craux.outputline(subset.getSafeSymbol() + "_hash->addParent(" + set.getSafeSymbol() + "_hash);");
 395             }
 396         }
 397
 398         /* build relations */
 399         Iterator relations = state.stRelations.descriptors();
 400
 401         /* first pass create all the hash tables */
 402         while (relations.hasNext()) {
 403             RelationDescriptor relation = (RelationDescriptor) relations.next();
 404
 405             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 406                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hash;");
 407                 craux.outputline(relation.getSafeSymbol() + "_hash = new SimpleHash();");
 408             }
 409
 410             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 411                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hashinv;");
 412                 craux.outputline(relation.getSafeSymbol() + "_hashinv = new SimpleHash();");
 413             }
 414         }
 415
 416         craux.outputline("}");
 417         crhead.outputline("};");
 418         craux.outputline(name+"::~"+name+"() {");
 419         craux.outputline("// deleting hashtables");
 420
 421         /* build destructor */
 422         sets = state.stSets.descriptors();
 423
 424         /* first pass create all the hash tables */
 425         while (sets.hasNext()) {
 426             SetDescriptor set = (SetDescriptor) sets.next();
 427             craux.outputline("delete "+set.getSafeSymbol() + "_hash;");
 428         }
 429
 430         /* destroy relations */
 431         relations = state.stRelations.descriptors();
 432
 433         /* first pass create all the hash tables */
 434         while (relations.hasNext()) {
 435             RelationDescriptor relation = (RelationDescriptor) relations.next();
 436
 437             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 438                 craux.outputline("delete "+relation.getSafeSymbol() + "_hash;");
 439             }
 440
 441             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 442                 craux.outputline("delete " + relation.getSafeSymbol() + "_hashinv;");
 443             }
 444         }
 445         craux.outputline("}");
 446     }
 447
 448     private void generate_start() {
 449         CodeWriter crhead = new StandardCodeWriter(outputhead);
 450         CodeWriter craux = new StandardCodeWriter(outputaux);
 451         oldmodel=VarDescriptor.makeNew("oldmodel");
 452         newmodel=VarDescriptor.makeNew("newmodel");
 453         worklist=VarDescriptor.makeNew("worklist");
 454         goodflag=VarDescriptor.makeNew("goodflag");
 455         repairtable=VarDescriptor.makeNew("repairtable");
 456         crhead.outputline("void doanalysis();");
 457         craux.outputline("void "+name +"_state::doanalysis()");
 458         craux.startblock();
 459         craux.outputline("int highmark;");
 460         craux.outputline("initializestack(&highmark);");
 461         craux.outputline("typeobject *typeobject1=gettypeobject();");
 462         craux.outputline("typeobject1->computesizes(this);");
 463         craux.outputline("recomputesizes();");
 464         craux.outputline(name+ " * "+oldmodel.getSafeSymbol()+"=0;");
 465         craux.outputline("WorkList * "+worklist.getSafeSymbol()+" = new WorkList();");
 466         craux.outputline("RepairHash * "+repairtable.getSafeSymbol()+"=0;");
 467         craux.outputline("while (1)");
 468         craux.startblock();
 469         craux.outputline(name+ " * "+newmodel.getSafeSymbol()+"=new "+name+"();");
 470     }
 471
 472     private void generate_teardown() {
 473         CodeWriter cr = new StandardCodeWriter(outputaux);
 474         cr.endblock();
 475     }
 476
 477     Set ruleset=null;
 478     private void generate_rules() {
 479         /* first we must sort the rules */
 480         RelationDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 481         SetDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 482         System.out.println("SCC="+(mrd.numSCC()-1));
 483         for(int sccindex=0;sccindex<mrd.numSCC();sccindex++) {
 484             ruleset=mrd.getSCC(sccindex);
 485             boolean needworklist=mrd.hasCycle(sccindex);
 486
 487             if (!needworklist) {
 488                 Iterator iterator_rs = ruleset.iterator();
 489                 while (iterator_rs.hasNext()) {
 490                     Rule rule = (Rule) iterator_rs.next();
 491                     {
 492                         final SymbolTable st = rule.getSymbolTable();
 493                         CodeWriter cr = new StandardCodeWriter(outputaux) {
 494                                 public SymbolTable getSymbolTable() { return st; }
 495                             };
 496                         cr.outputline("// build " +escape(rule.toString()));
 497                         cr.startblock();
 498                         cr.outputline("int maybe=0;");
 499                         ListIterator quantifiers = rule.quantifiers();
 500                         while (quantifiers.hasNext()) {
 501                             Quantifier quantifier = (Quantifier) quantifiers.next();
 502                             quantifier.generate_open(cr);
 503                         }
 504
 505                         /* pretty print! */
 506                         cr.output("//");
 507                         rule.getGuardExpr().prettyPrint(cr);
 508                         cr.outputline("");
 509
 510                         /* now we have to generate the guard test */
 511                         VarDescriptor guardval = VarDescriptor.makeNew();
 512                         rule.getGuardExpr().generate(cr, guardval);
 513                         cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 514                         cr.startblock();
 515
 516                         /* now we have to generate the inclusion code */
 517                         currentrule=rule;
 518                         rule.getInclusion().generate(cr);
 519                         cr.endblock();
 520                         while (quantifiers.hasPrevious()) {
 521                             Quantifier quantifier = (Quantifier) quantifiers.previous();
 522                             cr.endblock();
 523                         }
 524                         cr.endblock();
 525                         cr.outputline("");
 526                         cr.outputline("");
 527                     }
 528                 }
 529             } else {
 530                 CodeWriter cr2 = new StandardCodeWriter(outputaux);
 531
 532                 for(Iterator initialworklist=ruleset.iterator();initialworklist.hasNext();) {
 533                     /** Construct initial worklist set */
 534                     Rule rule=(Rule)initialworklist.next();
 535                     cr2.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
 536                 }
 537
 538                 cr2.outputline("while ("+worklist.getSafeSymbol()+"->hasMoreElements())");
 539                 cr2.startblock();
 540                 VarDescriptor idvar=VarDescriptor.makeNew("id");
 541                 cr2.outputline("int "+idvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getid();");
 542
 543                 String elseladder = "if";
 544
 545                 Iterator iterator_rules = ruleset.iterator();
 546                 while (iterator_rules.hasNext()) {
 547
 548                     Rule rule = (Rule) iterator_rules.next();
 549                     int dispatchid = rule.getNum();
 550
 551                     {
 552                         final SymbolTable st = rule.getSymbolTable();
 553                         CodeWriter cr = new StandardCodeWriter(outputaux) {
 554                                 public SymbolTable getSymbolTable() { return st; }
 555                             };
 556
 557                         cr.indent();
 558                         cr.outputline(elseladder + " ("+idvar.getSafeSymbol()+" == " + dispatchid + ")");
 559                         cr.startblock();
 560                         cr.outputline("int maybe=0;");
 561                         VarDescriptor typevar=VarDescriptor.makeNew("type");
 562                         VarDescriptor leftvar=VarDescriptor.makeNew("left");
 563                         VarDescriptor rightvar=VarDescriptor.makeNew("right");
 564                         cr.outputline("int "+typevar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->gettype();");
 565                         cr.outputline("int "+leftvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getlvalue();");
 566                         cr.outputline("int "+rightvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getrvalue();");
 567                         cr.outputline("// build " +escape(rule.toString()));
 568
 569
 570                         for (int j=0;j<rule.numQuantifiers();j++) {
 571                             Quantifier quantifier = rule.getQuantifier(j);
 572                             quantifier.generate_open(cr, typevar.getSafeSymbol(),j,leftvar.getSafeSymbol(),rightvar.getSafeSymbol());
 573                         }
 574
 575                         /* pretty print! */
 576                         cr.output("//");
 577
 578                         rule.getGuardExpr().prettyPrint(cr);
 579                         cr.outputline("");
 580
 581                         /* now we have to generate the guard test */
 582
 583                         VarDescriptor guardval = VarDescriptor.makeNew();
 584                         rule.getGuardExpr().generate(cr, guardval);
 585
 586                         cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 587                         cr.startblock();
 588
 589                         /* now we have to generate the inclusion code */
 590                         currentrule=rule;
 591                         rule.getInclusion().generate(cr);
 592                         cr.endblock();
 593
 594                         for (int j=0;j<rule.numQuantifiers();j++) {
 595                             cr.endblock();
 596                         }
 597
 598                         // close startblocks generated by DotExpr memory checks
 599                         //DotExpr.generate_memory_endblocks(cr);
 600
 601                         cr.endblock(); // end else-if WORKLIST ladder
 602
 603                         elseladder = "else if";
 604                     }
 605                 }
 606                 cr2.outputline("else");
 607                 cr2.startblock();
 608                 cr2.outputline("printf(\"VERY BAD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\\n\\n\");");
 609                 cr2.outputline("exit(1);");
 610                 cr2.endblock();
 611                 // end block created for worklist
 612                 cr2.outputline(worklist.getSafeSymbol()+"->pop();");
 613                 cr2.endblock();
 614             }
 615         }
 616     }
 617
 618     public static String escape(String s) {
 619         String newstring="";
 620         for(int i=0;i<s.length();i++) {
 621             char c=s.charAt(i);
 622             if (c=='"')
 623                 newstring+="\"";
 624             else
 625                 newstring+=c;
 626         }
 627         return newstring;
 628     }
 629
 630     private void generate_checks() {
 631
 632         /* do constraint checks */
 633         //        Vector constraints = state.vConstraints;
 634
 635
 636         //        for (int i = 0; i < constraints.size(); i++) {
 637         //            Constraint constraint = (Constraint) constraints.elementAt(i);
 638         for (Iterator i = termination.constraintdependence.computeOrdering().iterator(); i.hasNext();) {
 639             Constraint constraint = (Constraint) ((GraphNode)i.next()).getOwner();
 640
 641             {
 642                 final SymbolTable st = constraint.getSymbolTable();
 643                 CodeWriter cr = new StandardCodeWriter(outputaux);
 644                 cr.pushSymbolTable(constraint.getSymbolTable());
 645
 646                 cr.outputline("// checking " + escape(constraint.toString()));
 647                 cr.startblock();
 648
 649                 ListIterator quantifiers = constraint.quantifiers();
 650
 651                 while (quantifiers.hasNext()) {
 652                     Quantifier quantifier = (Quantifier) quantifiers.next();
 653                     quantifier.generate_open(cr);
 654                 }
 655
 656                 cr.outputline("int maybe = 0;");
 657
 658                 /* now we have to generate the guard test */
 659
 660                 VarDescriptor constraintboolean = VarDescriptor.makeNew("constraintboolean");
 661                 constraint.getLogicStatement().generate(cr, constraintboolean);
 662
 663                 cr.outputline("if (maybe)");
 664                 cr.startblock();
 665                 cr.outputline("printf(\"maybe fail " +  escape(constraint.toString()) + ". \\n\");");
 666                 cr.outputline("exit(1);");
 667                 cr.endblock();
 668
 669                 cr.outputline("else if (!" + constraintboolean.getSafeSymbol() + ")");
 670                 cr.startblock();
 671                 if (!Compiler.REPAIR)
 672                     cr.outputline("printf(\"fail " + escape(constraint.toString()) + ". \\n\");");
 673                 else {
 674                 /* Do repairs */
 675                 /* Build new repair table */
 676                 cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 677                 cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 678                 cr.outputline(repairtable.getSafeSymbol()+"=new RepairHash();");
 679
 680
 681                 /* Compute cost of each repair */
 682                 VarDescriptor mincost=VarDescriptor.makeNew("mincost");
 683                 VarDescriptor mincostindex=VarDescriptor.makeNew("mincostindex");
 684                 DNFConstraint dnfconst=constraint.dnfconstraint;
 685                 if (dnfconst.size()<=1) {
 686                     cr.outputline("int "+mincostindex.getSafeSymbol()+"=0;");
 687                 }
 688                 if (dnfconst.size()>1) {
 689                     cr.outputline("int "+mincostindex.getSafeSymbol()+";");
 690                     boolean first=true;
 691                     for(int j=0;j<dnfconst.size();j++) {
 692                         Conjunction conj=dnfconst.get(j);
 693                         GraphNode gn=(GraphNode)termination.conjtonodemap.get(conj);
 694                         if (removed.contains(gn))
 695                             continue;
 696
 697                         VarDescriptor costvar;
 698                         if (first) {
 699                             costvar=mincost;
 700                         } else
 701                             costvar=VarDescriptor.makeNew("cost");
 702                         for(int k=0;k<conj.size();k++) {
 703                             DNFPredicate dpred=conj.get(k);
 704                             Predicate p=dpred.getPredicate();
 705                             boolean negate=dpred.isNegated();
 706                             VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 707                             p.generate(cr,predvalue);
 708                             if (negate)
 709                                 cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 710                             else
 711                                 cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 712                             if (k==0)
 713                                 cr.outputline("int "+costvar.getSafeSymbol()+"="+cost.getCost(dpred)+";");
 714                             else
 715                                 cr.outputline(costvar.getSafeSymbol()+"+="+cost.getCost(dpred)+";");
 716                         }
 717
 718                         if(!first) {
 719                             cr.outputline("if ("+costvar.getSafeSymbol()+"<"+mincost.getSafeSymbol()+")");
 720                             cr.startblock();
 721                             cr.outputline(mincost.getSafeSymbol()+"="+costvar.getSafeSymbol()+";");
 722                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 723                             cr.endblock();
 724                         } else
 725                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 726                         first=false;
 727                     }
 728                 }
 729                 cr.outputline("switch("+mincostindex.getSafeSymbol()+") {");
 730                 for(int j=0;j<dnfconst.size();j++) {
 731                     Conjunction conj=dnfconst.get(j);
 732                     GraphNode gn=(GraphNode)termination.conjtonodemap.get(conj);
 733                     if (removed.contains(gn))
 734                         continue;
 735                     cr.outputline("case "+j+":");
 736                     for(int k=0;k<conj.size();k++) {
 737                         DNFPredicate dpred=conj.get(k);
 738                         Predicate p=dpred.getPredicate();
 739                         boolean negate=dpred.isNegated();
 740                         VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 741                         p.generate(cr,predvalue);
 742                         if (negate)
 743                             cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 744                         else
 745                             cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 746                         cr.startblock();
 747                         if (p instanceof InclusionPredicate)
 748                             generateinclusionrepair(conj,dpred, cr);
 749                         else if (p instanceof ExprPredicate) {
 750                             ExprPredicate ep=(ExprPredicate)p;
 751                             if (ep.getType()==ExprPredicate.SIZE)
 752                                 generatesizerepair(conj,dpred,cr);
 753                             else if (ep.getType()==ExprPredicate.COMPARISON)
 754                                 generatecomparisonrepair(conj,dpred,cr);
 755                         } else throw new Error("Unrecognized Predicate");
 756                         cr.endblock();
 757                     }
 758                     /* Update model */
 759                     cr.outputline("break;");
 760                 }
 761                 cr.outputline("}");
 762
 763                 cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 764                 cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 765                 cr.outputline(oldmodel.getSafeSymbol()+"="+newmodel.getSafeSymbol()+";");
 766                 cr.outputline("goto rebuild;");  /* Rebuild model and all */
 767                 }
 768                 cr.endblock();
 769
 770                 while (quantifiers.hasPrevious()) {
 771                     Quantifier quantifier = (Quantifier) quantifiers.previous();
 772                     cr.endblock();
 773                 }
 774                 cr.endblock();
 775                 cr.outputline("");
 776                 cr.outputline("");
 777             }
 778         }
 779         CodeWriter cr = new StandardCodeWriter(outputaux);
 780         cr.startblock();
 781         cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 782         cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 783         cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 784         cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 785         cr.outputline("delete "+newmodel.getSafeSymbol()+";");
 786         cr.outputline("delete "+worklist.getSafeSymbol()+";");
 787         cr.outputline("resettypemap();");
 788         cr.outputline("break;");
 789         cr.endblock();
 790         cr.outputline("rebuild:");
 791         cr.outputline(";");
 792
 793     }
 794
 795     private MultUpdateNode getmultupdatenode(Conjunction conj, DNFPredicate dpred, int repairtype) {
 796         MultUpdateNode mun=null;
 797         GraphNode gn=(GraphNode) termination.conjtonodemap.get(conj);
 798         for(Iterator edgeit=gn.edges();(mun==null)&&edgeit.hasNext();) {
 799             GraphNode gn2=((GraphNode.Edge) edgeit.next()).getTarget();
 800             TermNode tn2=(TermNode)gn2.getOwner();
 801             if (tn2.getType()==TermNode.ABSTRACT) {
 802                 AbstractRepair ar=tn2.getAbstract();
 803                 if (((repairtype==-1)||(ar.getType()==repairtype))&&
 804                     ar.getPredicate()==dpred) {
 805                     for(Iterator edgeit2=gn2.edges();edgeit2.hasNext();) {
 806                         GraphNode gn3=((GraphNode.Edge) edgeit2.next()).getTarget();
 807                         if (!removed.contains(gn3)) {
 808                             TermNode tn3=(TermNode)gn3.getOwner();
 809                             if (tn3.getType()==TermNode.UPDATE) {
 810                                 mun=tn3.getUpdate();
 811                                 break;
 812                             }
 813                         }
 814                     }
 815                 }
 816             }
 817         }
 818         return mun;
 819     }
 820
 821     /** Generates abstract (and concrete) repair for a comparison */
 822
 823     private void generatecomparisonrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
 824         MultUpdateNode munmodify=getmultupdatenode(conj,dpred,AbstractRepair.MODIFYRELATION);
 825         MultUpdateNode munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
 826         MultUpdateNode munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
 827         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
 828         RelationDescriptor rd=(RelationDescriptor)ep.getDescriptor();
 829         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
 830         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
 831         boolean inverted=ep.inverted();
 832         boolean negated=dpred.isNegated();
 833         OpExpr expr=(OpExpr)ep.expr;
 834         Opcode opcode=expr.getOpcode();
 835         VarDescriptor leftside=VarDescriptor.makeNew("leftside");
 836         VarDescriptor rightside=VarDescriptor.makeNew("rightside");
 837         VarDescriptor newvalue=VarDescriptor.makeNew("newvalue");
 838         if (!inverted) {
 839             expr.getLeftExpr().generate(cr,leftside);
 840             expr.getRightExpr().generate(cr,newvalue);
 841             cr.outputline(rd.getRange().getType().getGenerateType().getSafeSymbol()+" "+rightside.getSafeSymbol()+";");
 842             cr.outputline(rd.getSafeSymbol()+"_hash->get("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 843         } else {
 844             expr.getLeftExpr().generate(cr,rightside);
 845             expr.getRightExpr().generate(cr,newvalue);
 846             cr.outputline(rd.getDomain().getType().getGenerateType().getSafeSymbol()+" "+leftside.getSafeSymbol()+";");
 847             cr.outputline(rd.getSafeSymbol()+"_hashinv->get("+leftside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 848         }
 849         if (negated)
 850             if (opcode==Opcode.GT) {
 851                 opcode=Opcode.LE;
 852             } else if (opcode==Opcode.GE) {
 853                 opcode=Opcode.LT;
 854             } else if (opcode==Opcode.LT) {
 855                 opcode=Opcode.GE;
 856             } else if (opcode==Opcode.LE) {
 857                 opcode=Opcode.GT;
 858             } else if (opcode==Opcode.EQ) {
 859                 opcode=Opcode.NE;
 860             } else if (opcode==Opcode.NE) {
 861                 opcode=Opcode.EQ;
 862             } else {
 863                 throw new Error("Unrecognized Opcode");
 864             }
 865
 866         if (opcode==Opcode.GT) {
 867             cr.outputline(newvalue.getSafeSymbol()+"++;");
 868         } else if (opcode==Opcode.GE) {
 869             /* Equal */
 870         } else if (opcode==Opcode.LT) {
 871             cr.outputline(newvalue.getSafeSymbol()+"--;");
 872         } else if (opcode==Opcode.LE) {
 873             /* Equal */
 874         } else if (opcode==Opcode.EQ) {
 875             /* Equal */
 876         } else if (opcode==Opcode.NE) { /* search for FLAGNE if this is changed*/
 877             cr.outputline(newvalue.getSafeSymbol()+"++;");
 878         } else {
 879             throw new Error("Unrecognized Opcode");
 880         }
 881         /* Do abstract repairs */
 882         if (usageimage) {
 883             cr.outputline(rd.getSafeSymbol()+"_hash->remove("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 884             if (!inverted) {
 885                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
 886             } else {
 887                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 888             }
 889         }
 890         if (usageinvimage) {
 891             cr.outputline(rd.getSafeSymbol()+"_hashinv->remove("+rightside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 892             if (!inverted) {
 893                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newvalue.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 894             } else {
 895                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+rightside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
 896             }
 897         }
 898         /* Do concrete repairs */
 899         if (munmodify!=null) {
 900             for(int i=0;i<state.vRules.size();i++) {
 901                 Rule r=(Rule)state.vRules.get(i);
 902                 if (r.getInclusion().getTargetDescriptors().contains(rd)) {
 903                     for(int j=0;j<munmodify.numUpdates();j++) {
 904                         UpdateNode un=munmodify.getUpdate(j);
 905                         if (un.getRule()==r) {
 906                             /* Update for rule r */
 907                             String name=(String)updatenames.get(un);
 908                             cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+","+newvalue.getSafeSymbol()+");");
 909                         }
 910                     }
 911                 }
 912             }
 913
 914         } else {
 915             /* Start with scheduling removal */
 916             for(int i=0;i<state.vRules.size();i++) {
 917                 Rule r=(Rule)state.vRules.get(i);
 918                 if (r.getInclusion().getTargetDescriptors().contains(rd)) {
 919                     for(int j=0;j<munremove.numUpdates();j++) {
 920                         UpdateNode un=munremove.getUpdate(i);
 921                         if (un.getRule()==r) {
 922                             /* Update for rule r */
 923                             String name=(String)updatenames.get(un);
 924                             cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+");");
 925                         }
 926                     }
 927                 }
 928             }
 929             /* Now do addition */
 930             UpdateNode un=munadd.getUpdate(0);
 931             String name=(String)updatenames.get(un);
 932             if (!inverted) {
 933                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
 934             } else {
 935                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 936             }
 937         }
 938     }
 939
 940     public void generatesizerepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr) {
 941         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
 942         OpExpr expr=(OpExpr)ep.expr;
 943         Opcode opcode=expr.getOpcode();
 944         opcode=Opcode.translateOpcode(dpred.isNegated(),opcode);
 945
 946         MultUpdateNode munremove;
 947
 948         MultUpdateNode munadd;
 949         if (ep.getDescriptor() instanceof RelationDescriptor) {
 950             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
 951             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
 952         } else {
 953             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMSET);
 954             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTOSET);
 955         }
 956         int size=ep.rightSize();
 957         VarDescriptor sizevar=VarDescriptor.makeNew("size");
 958         ((OpExpr)expr).left.generate(cr, sizevar);
 959         VarDescriptor change=VarDescriptor.makeNew("change");
 960         cr.outputline("int "+change.getSafeSymbol()+";");
 961         boolean generateadd=false;
 962         boolean generateremove=false;
 963         if (opcode==Opcode.GT) {
 964             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
 965             generateadd=true;
 966             generateremove=false;
 967         } else if (opcode==Opcode.GE) {
 968             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
 969             generateadd=true;
 970             generateremove=false;
 971         } else if (opcode==Opcode.LT) {
 972             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size-1)+"-"+sizevar.getSafeSymbol()+";");
 973             generateadd=false;
 974             generateremove=true;
 975         } else if (opcode==Opcode.LE) {
 976             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
 977             generateadd=false;
 978             generateremove=true;
 979         } else if (opcode==Opcode.EQ) {
 980             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
 981             if (size==0)
 982                 generateadd=false;
 983             else
 984                 generateadd=true;
 985             generateremove=true;
 986         } else if (opcode==Opcode.NE) {
 987             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
 988             generateadd=true;
 989             generateremove=false;
 990         } else {
 991             throw new Error("Unrecognized Opcode");
 992         }
 993
 994 // In some cases the analysis has determined that generating removes
 995 // is unnecessary
 996         if (generateremove&&munremove==null)
 997             generateremove=false;
 998
 999         Descriptor d=ep.getDescriptor();
1000         if (generateremove) {
1001             cr.outputline("for(;"+change.getSafeSymbol()+"<0;"+change.getSafeSymbol()+"++)");
1002             cr.startblock();
1003             /* Find element to remove */
1004             VarDescriptor leftvar=VarDescriptor.makeNew("leftvar");
1005             VarDescriptor rightvar=VarDescriptor.makeNew("rightvar");
1006             if (d instanceof RelationDescriptor) {
1007                 if (ep.inverted()) {
1008                     rightvar=((ImageSetExpr)((SizeofExpr)((OpExpr)expr).left).setexpr).getVar();
1009                     cr.outputline("int "+leftvar.getSafeSymbol()+";");
1010                     cr.outputline(d.getSafeSymbol()+"_hashinv->get((int)"+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1011                 } else {
1012                     leftvar=((ImageSetExpr)((SizeofExpr)((OpExpr)expr).left).setexpr).getVar();
1013                     cr.outputline("int "+rightvar.getSafeSymbol()+"=0;");
1014                     cr.outputline(d.getSafeSymbol()+"_hash->get((int)"+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1015                 }
1016             } else {
1017                 cr.outputline("int "+leftvar.getSafeSymbol()+"="+d.getSafeSymbol()+"_hash->firstkey();");
1018             }
1019             /* Generate abstract remove instruction */
1020             if (d instanceof RelationDescriptor) {
1021                 RelationDescriptor rd=(RelationDescriptor) d;
1022                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1023                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1024                 if (usageimage)
1025                     cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1026                 if (usageinvimage)
1027                     cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1028             } else {
1029                 cr.outputline(d.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1030             }
1031             /* Generate concrete remove instruction */
1032             for(int i=0;i<state.vRules.size();i++) {
1033                 Rule r=(Rule)state.vRules.get(i);
1034                 if (r.getInclusion().getTargetDescriptors().contains(d)) {
1035                     for(int j=0;j<munremove.numUpdates();j++) {
1036                         UpdateNode un=munremove.getUpdate(j);
1037                         if (un.getRule()==r) {
1038                                 /* Update for rule rule r */
1039                             String name=(String)updatenames.get(un);
1040                             if (d instanceof RelationDescriptor) {
1041                                 cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1042                             } else {
1043                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1044                             }
1045                         }
1046                     }
1047                 }
1048             }
1049             cr.endblock();
1050         }
1051         if (generateadd) {
1052
1053             cr.outputline("for(;"+change.getSafeSymbol()+">0;"+change.getSafeSymbol()+"--)");
1054             cr.startblock();
1055             VarDescriptor newobject=VarDescriptor.makeNew("newobject");
1056             if (d instanceof RelationDescriptor) {
1057                 VarDescriptor otherside=((ImageSetExpr)((SizeofExpr)((OpExpr)ep.expr).left).setexpr).vd;
1058                 RelationDescriptor rd=(RelationDescriptor)d;
1059                 if (sources.relsetSource(rd,!ep.inverted())) {
1060                     /* Set Source */
1061                     SetDescriptor sd=sources.relgetSourceSet(rd,!ep.inverted());
1062                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1063                     cr.outputline(sd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1064                     cr.outputline("for("+iterator.getSafeSymbol()+"="+sd.getSafeSymbol()+"_hash->iterator();"+iterator.getSafeSymbol()+".hasNext();)");
1065                     cr.startblock();
1066                     if (ep.inverted()) {
1067                         cr.outputline("if !"+rd.getSafeSymbol()+"_hashinv->contains("+iterator.getSafeSymbol()+"->key(),"+otherside.getSafeSymbol()+")");
1068                     } else {
1069                         cr.outputline("if !"+rd.getSafeSymbol()+"_hash->contains("+otherside.getSafeSymbol()+","+iterator.getSafeSymbol()+"->key())");
1070                     }
1071                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1072                     cr.outputline(iterator.getSafeSymbol()+"->next();");
1073                     cr.endblock();
1074                 } else if (sources.relallocSource(rd,!ep.inverted())) {
1075                     /* Allocation Source*/
1076                     sources.relgenerateSourceAlloc(cr,newobject,rd,!ep.inverted());
1077                 } else throw new Error("No source for adding to Relation");
1078                 if (ep.inverted()) {
1079                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1080                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1081                     if (usageimage)
1082                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1083                     if (usageinvimage)
1084                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1085
1086                     UpdateNode un=munadd.getUpdate(0);
1087                     String name=(String)updatenames.get(un);
1088                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1089                 } else {
1090                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1091                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1092                     if (usageimage)
1093                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1094                     if (usageinvimage)
1095                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1096                     UpdateNode un=munadd.getUpdate(0);
1097                     String name=(String)updatenames.get(un);
1098                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1099                 }
1100             } else {
1101                 SetDescriptor sd=(SetDescriptor)d;
1102                 if (sources.setSource(sd)) {
1103                     /* Set Source */
1104                     /* Set Source */
1105                     SetDescriptor sourcesd=sources.getSourceSet(sd);
1106                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1107                     cr.outputline(sourcesd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1108                     cr.outputline("for("+iterator.getSafeSymbol()+"="+sourcesd.getSafeSymbol()+"_hash->iterator();"+iterator.getSafeSymbol()+".hasNext();)");
1109                     cr.startblock();
1110                     cr.outputline("if !"+sd.getSafeSymbol()+"_hash->contains("+iterator.getSafeSymbol()+"->key())");
1111                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1112                     cr.outputline(iterator.getSafeSymbol()+"->next();");
1113                     cr.endblock();
1114                 } else if (sources.allocSource(sd)) {
1115                     /* Allocation Source*/
1116                     sources.generateSourceAlloc(cr,newobject,sd);
1117                 } else throw new Error("No source for adding to Set");
1118                 cr.outputline(sd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1119                 UpdateNode un=munadd.getUpdate(0);
1120                 String name=(String)updatenames.get(un);
1121                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1122             }
1123             cr.endblock();
1124         }
1125     }
1126
1127     public void generateinclusionrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
1128         InclusionPredicate ip=(InclusionPredicate) dpred.getPredicate();
1129         boolean negated=dpred.isNegated();
1130         MultUpdateNode mun=getmultupdatenode(conj,dpred,-1);
1131         VarDescriptor leftvar=VarDescriptor.makeNew("left");
1132         ip.expr.generate(cr, leftvar);
1133
1134         if (negated) {
1135             if (ip.setexpr instanceof ImageSetExpr) {
1136                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1137                 VarDescriptor rightvar=ise.getVar();
1138                 boolean inverse=ise.inverted();
1139                 RelationDescriptor rd=ise.getRelation();
1140                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1141                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1142                 if (inverse) {
1143                     if (usageimage)
1144                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1145                     if (usageinvimage)
1146                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1147                 } else {
1148                     if (usageimage)
1149                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1150                     if (usageinvimage)
1151                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1152                 }
1153                 for(int i=0;i<state.vRules.size();i++) {
1154                     Rule r=(Rule)state.vRules.get(i);
1155                     if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1156                         for(int j=0;j<mun.numUpdates();j++) {
1157                             UpdateNode un=mun.getUpdate(i);
1158                             if (un.getRule()==r) {
1159                                 /* Update for rule rule r */
1160                                 String name=(String)updatenames.get(un);
1161                                 if (inverse) {
1162                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1163                                 } else {
1164                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1165                                 }
1166                             }
1167                         }
1168                     }
1169                 }
1170             } else {
1171                 SetDescriptor sd=ip.setexpr.sd;
1172                 cr.outputline(sd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1173
1174                 for(int i=0;i<state.vRules.size();i++) {
1175                     Rule r=(Rule)state.vRules.get(i);
1176                     if (r.getInclusion().getTargetDescriptors().contains(sd)) {
1177                         for(int j=0;j<mun.numUpdates();j++) {
1178                             UpdateNode un=mun.getUpdate(i);
1179                             if (un.getRule()==r) {
1180                                 /* Update for rule rule r */
1181                                 String name=(String)updatenames.get(un);
1182                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+sd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1183                             }
1184                         }
1185                     }
1186                 }
1187             }
1188         } else {
1189             /* Generate update */
1190             if (ip.setexpr instanceof ImageSetExpr) {
1191                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1192                 VarDescriptor rightvar=ise.getVar();
1193                 boolean inverse=ise.inverted();
1194                 RelationDescriptor rd=ise.getRelation();
1195                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1196                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1197                 if (inverse) {
1198                     if (usageimage)
1199                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1200                     if (usageinvimage)
1201                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1202                 } else {
1203                     if (usageimage)
1204                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1205                     if (usageinvimage)
1206                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1207                 }
1208                 UpdateNode un=mun.getUpdate(0);
1209                 String name=(String)updatenames.get(un);
1210                 if (inverse) {
1211                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1212                 } else {
1213                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1214                 }
1215             } else {
1216                 SetDescriptor sd=ip.setexpr.sd;
1217                 cr.outputline(sd.getSafeSymbol() + "_hash->add((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1218
1219                 UpdateNode un=mun.getUpdate(0);
1220                 /* Update for rule rule r */
1221                 String name=(String)updatenames.get(un);
1222                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1223             }
1224         }
1225     }
1226
1227     public static Vector getrulelist(Descriptor d) {
1228         Vector dispatchrules = new Vector();
1229         Vector rules = State.currentState.vRules;
1230
1231         for (int i = 0; i < rules.size(); i++) {
1232             Rule rule = (Rule) rules.elementAt(i);
1233             Set requiredsymbols = rule.getRequiredDescriptors();
1234
1235             // #TBD#: in general this is wrong because these descriptors may contain descriptors
1236             // bound in "in?" expressions which need to be dealt with in a topologically sorted
1237             // fashion...
1238
1239             if (rule.getRequiredDescriptors().contains(d)) {
1240                 dispatchrules.addElement(rule);
1241             }
1242         }
1243         return dispatchrules;
1244     }
1245
1246     private boolean need_compensation(Rule r) {
1247         if (!Compiler.REPAIR)
1248             return false;
1249         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1250         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1251             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1252             GraphNode gn2=edge.getTarget();
1253             if (!removed.contains(gn2)) {
1254                 TermNode tn2=(TermNode)gn2.getOwner();
1255                 if (tn2.getType()==TermNode.CONSEQUENCE)
1256                     return false;
1257             }
1258         }
1259         return true;
1260     }
1261
1262     private UpdateNode find_compensation(Rule r) {
1263         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1264         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1265             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1266             GraphNode gn2=edge.getTarget();
1267             if (!removed.contains(gn2)) {
1268                 TermNode tn2=(TermNode)gn2.getOwner();
1269                 if (tn2.getType()==TermNode.UPDATE) {
1270                     MultUpdateNode mun=tn2.getUpdate();
1271                     for(int i=0;i<mun.numUpdates();i++) {
1272                         UpdateNode un=mun.getUpdate(i);
1273                         if (un.getRule()==r)
1274                             return un;
1275                     }
1276                 }
1277             }
1278         }
1279         throw new Error("No Compensation Update could be found");
1280     }
1281
1282     public void generate_dispatch(CodeWriter cr, RelationDescriptor rd, String leftvar, String rightvar) {
1283         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1284         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1285
1286         if (!(usageinvimage||usageimage)) /* not used at all*/
1287             return;
1288
1289         cr.outputline("// RELATION DISPATCH ");
1290         if (Compiler.REPAIR) {
1291             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1292             if (usageimage)
1293                 cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hash->contains("+leftvar+","+rightvar+"))");
1294             else
1295                 cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hashinv->contains("+rightvar+","+leftvar+"))");
1296
1297             cr.startblock(); {
1298                 /* Adding new item */
1299                 /* Perform safety checks */
1300                 cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1301                 cr.outputline(repairtable.getSafeSymbol()+"->containsrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+"))");
1302                 cr.startblock(); {
1303                     /* Have update to call into */
1304                     VarDescriptor mdfyptr=VarDescriptor.makeNew("modifyptr");
1305                     cr.outputline("int "+mdfyptr.getSafeSymbol()+"="+repairtable.getSafeSymbol()+"->getrelation2("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1306
1307                     String parttype="";
1308                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1309                         if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1310                             parttype=parttype+", int, int";
1311                         else
1312                             parttype=parttype+", int";
1313                     }
1314                     VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1315                     VarDescriptor tmpptr=VarDescriptor.makeNew("tempupdateptr");
1316
1317                     String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1318                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1319                         Quantifier q=currentrule.getQuantifier(i);
1320                         if (q instanceof SetQuantifier) {
1321                             SetQuantifier sq=(SetQuantifier) q;
1322                             methodcall+=","+sq.getVar().getSafeSymbol();
1323                         } else if (q instanceof RelationQuantifier) {
1324                             RelationQuantifier rq=(RelationQuantifier) q;
1325                             methodcall+=","+rq.x.getSafeSymbol();
1326                             methodcall+=","+rq.y.getSafeSymbol();
1327                         } else if (q instanceof ForQuantifier) {
1328                             ForQuantifier fq=(ForQuantifier) q;
1329                             methodcall+=","+fq.getVar().getSafeSymbol();
1330                         }
1331                     }
1332
1333
1334
1335                     cr.outputline("void *"+tmpptr.getSafeSymbol()+"=");
1336                     cr.outputline("(void *) "+repairtable.getSafeSymbol()+"->getrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1337                     cr.outputline("if ("+mdfyptr.getSafeSymbol()+")");
1338                     {
1339                         cr.startblock();
1340                         cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+",int,int,int)="+"(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+",int,int,int)) "+tmpptr.getSafeSymbol());
1341                         cr.outputline(methodcall+leftvar+", "+rightvar+", "+mdfyptr.getSafeSymbol() +");");
1342                         cr.endblock();
1343                     }
1344                     cr.outputline("else ");
1345                     {
1346                         cr.startblock();
1347                         cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")="+"(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+tmpptr.getSafeSymbol());
1348                         cr.outputline(methodcall+");");
1349                         cr.endblock();
1350                     }
1351                     cr.outputline("goto rebuild;");
1352                 }
1353                 cr.endblock();
1354
1355                 /* Build standard compensation actions */
1356                 if (need_compensation(currentrule)) {
1357                     UpdateNode un=find_compensation(currentrule);
1358                     String name=(String)updatenames.get(un);
1359                     usedupdates.add(un); /* Mark as used */
1360                     String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1361                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1362                         Quantifier q=currentrule.getQuantifier(i);
1363                         if (q instanceof SetQuantifier) {
1364                             SetQuantifier sq=(SetQuantifier) q;
1365                             methodcall+=","+sq.getVar().getSafeSymbol();
1366                         } else if (q instanceof RelationQuantifier) {
1367                             RelationQuantifier rq=(RelationQuantifier) q;
1368                             methodcall+=","+rq.x.getSafeSymbol();
1369                             methodcall+=","+rq.y.getSafeSymbol();
1370                         } else if (q instanceof ForQuantifier) {
1371                             ForQuantifier fq=(ForQuantifier) q;
1372                             methodcall+=","+fq.getVar().getSafeSymbol();
1373                         }
1374                     }
1375                     methodcall+=");";
1376                     cr.outputline(methodcall);
1377                     cr.outputline("goto rebuild;");
1378                 }
1379             }
1380             cr.endblock();
1381         }
1382
1383         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1384         cr.outputline("int " + addeditem + ";");
1385         if (rd.testUsage(RelationDescriptor.IMAGE)) {
1386             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hash->add((int)" + leftvar + ", (int)" + rightvar+ ");");
1387         }
1388
1389         if (rd.testUsage(RelationDescriptor.INVIMAGE)) {
1390             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar + ", (int)" + leftvar + ");");
1391         }
1392
1393
1394
1395         Vector dispatchrules = getrulelist(rd);
1396
1397         Set toremove=new HashSet();
1398         for(int i=0;i<dispatchrules.size();i++) {
1399             Rule r=(Rule)dispatchrules.get(i);
1400             if (!ruleset.contains(r))
1401                 toremove.add(r);
1402         }
1403         dispatchrules.removeAll(toremove);
1404         if (dispatchrules.size() == 0) {
1405             cr.outputline("// nothing to dispatch");
1406             return;
1407         }
1408
1409         cr.outputline("if (" + addeditem + ")");
1410         cr.startblock();
1411
1412         for(int i = 0; i < dispatchrules.size(); i++) {
1413             Rule rule = (Rule) dispatchrules.elementAt(i);
1414             if (rule.getGuardExpr().getRequiredDescriptors().contains(rd)) {
1415                 /* Guard depends on this relation, so we recomput everything */
1416                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1417             } else {
1418                 for (int j=0;j<rule.numQuantifiers();j++) {
1419                     Quantifier q=rule.getQuantifier(j);
1420                     if (q.getRequiredDescriptors().contains(rd)) {
1421                         /* Generate add */
1422                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+leftvar+","+rightvar+");");
1423                     }
1424                 }
1425             }
1426         }
1427
1428         cr.endblock();
1429     }
1430
1431
1432     public void generate_dispatch(CodeWriter cr, SetDescriptor sd, String setvar) {
1433
1434         cr.outputline("// SET DISPATCH ");
1435         if (Compiler.REPAIR) {
1436             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1437             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+sd.getJustSafeSymbol()+"_hash->contains("+setvar+"))");
1438             cr.startblock(); {
1439                 /* Adding new item */
1440                 /* Perform safety checks */
1441                 cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1442                 cr.outputline(repairtable.getSafeSymbol()+"->containsset("+sd.getNum()+","+currentrule.getNum()+","+setvar+"))");
1443                 cr.startblock(); {
1444                     /* Have update to call into */
1445                     VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1446                     String parttype="";
1447                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1448                         if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1449                             parttype=parttype+", int, int";
1450                         else
1451                             parttype=parttype+", int";
1452                     }
1453                     cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")=");
1454                     cr.outputline("(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+repairtable.getSafeSymbol()+"->getset("+sd.getNum()+","+currentrule.getNum()+","+setvar+");");
1455                     String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+
1456                         repairtable.getSafeSymbol();
1457                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1458                         Quantifier q=currentrule.getQuantifier(i);
1459                         if (q instanceof SetQuantifier) {
1460                             SetQuantifier sq=(SetQuantifier) q;
1461                             methodcall+=","+sq.getVar().getSafeSymbol();
1462                         } else if (q instanceof RelationQuantifier) {
1463                             RelationQuantifier rq=(RelationQuantifier) q;
1464                             methodcall+=","+rq.x.getSafeSymbol();
1465                             methodcall+=","+rq.y.getSafeSymbol();
1466                         } else if (q instanceof ForQuantifier) {
1467                             ForQuantifier fq=(ForQuantifier) q;
1468                             methodcall+=","+fq.getVar().getSafeSymbol();
1469                         }
1470                     }
1471                     methodcall+=");";
1472                     cr.outputline(methodcall);
1473                     cr.outputline("goto rebuild;");
1474                 }
1475                 cr.endblock();
1476                 /* Build standard compensation actions */
1477                 if (need_compensation(currentrule)) {
1478                     UpdateNode un=find_compensation(currentrule);
1479                     String name=(String)updatenames.get(un);
1480                     usedupdates.add(un); /* Mark as used */
1481
1482                     String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+
1483                         repairtable.getSafeSymbol();
1484                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1485                         Quantifier q=currentrule.getQuantifier(i);
1486                         if (q instanceof SetQuantifier) {
1487                             SetQuantifier sq=(SetQuantifier) q;
1488                             methodcall+=","+sq.getVar().getSafeSymbol();
1489                         } else if (q instanceof RelationQuantifier) {
1490                             RelationQuantifier rq=(RelationQuantifier) q;
1491                             methodcall+=","+rq.x.getSafeSymbol();
1492                             methodcall+=","+rq.y.getSafeSymbol();
1493                         } else if (q instanceof ForQuantifier) {
1494                             ForQuantifier fq=(ForQuantifier) q;
1495                             methodcall+=","+fq.getVar().getSafeSymbol();
1496                         }
1497                     }
1498                     methodcall+=");";
1499                     cr.outputline(methodcall);
1500                     cr.outputline("goto rebuild;");
1501                 }
1502             }
1503             cr.endblock();
1504         }
1505
1506         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1507         cr.outputline("int " + addeditem + " = 1;");
1508         cr.outputline(addeditem + " = " + sd.getSafeSymbol() + "_hash->add((int)" + setvar +  ", (int)" + setvar + ");");
1509         cr.startblock();
1510         Vector dispatchrules = getrulelist(sd);
1511
1512         Set toremove=new HashSet();
1513         for(int i=0;i<dispatchrules.size();i++) {
1514             Rule r=(Rule)dispatchrules.get(i);
1515             if (!ruleset.contains(r))
1516                 toremove.add(r);
1517         }
1518         dispatchrules.removeAll(toremove);
1519
1520         if (dispatchrules.size() == 0) {
1521             cr.outputline("// nothing to dispatch");
1522             cr.endblock();
1523             return;
1524         }
1525         cr.outputline("if ("+addeditem+")");
1526         cr.startblock();
1527         for(int i = 0; i < dispatchrules.size(); i++) {
1528             Rule rule = (Rule) dispatchrules.elementAt(i);
1529             if (SetDescriptor.expand(rule.getGuardExpr().getRequiredDescriptors()).contains(sd)) {
1530                 /* Guard depends on this relation, so we recompute everything */
1531                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1532             } else {
1533                 for (int j=0;j<rule.numQuantifiers();j++) {
1534                     Quantifier q=rule.getQuantifier(j);
1535                     if (SetDescriptor.expand(q.getRequiredDescriptors()).contains(sd)) {
1536                         /* Generate add */
1537                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+setvar+",0);");
1538                     }
1539                 }
1540             }
1541         }
1542         cr.endblock();
1543         cr.endblock();
1544     }
1545 }