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     ModelRuleDependence mrd;
  29
  30     public RepairGenerator(State state, Termination t) {
  31         this.state = state;
  32         updatenames=new Hashtable();
  33         usedupdates=new HashSet();
  34         termination=t;
  35         removed=t.removedset;
  36         togenerate=new HashSet();
  37         togenerate.addAll(termination.conjunctions);
  38         if (Compiler.REPAIR)
  39             togenerate.removeAll(removed);
  40         GraphNode.computeclosure(togenerate,removed);
  41         cost=new Cost();
  42         mrd=ModelRuleDependence.doAnalysis(state);
  43         Repair.repairgenerator=this;
  44     }
  45
  46     private void generatetypechecks(boolean flag) {
  47         if (flag) {
  48             DotExpr.DOTYPECHECKS=true;
  49             VarExpr.DOTYPECHECKS=true;
  50             DotExpr.DONULL=true;
  51             VarExpr.DONULL=true;
  52         } else {
  53             VarExpr.DOTYPECHECKS=false;
  54             DotExpr.DOTYPECHECKS=false;
  55             VarExpr.DONULL=true;
  56             DotExpr.DONULL=true;
  57         }
  58     }
  59
  60
  61     private void name_updates() {
  62         int count=0;
  63         for(Iterator it=termination.updatenodes.iterator();it.hasNext();) {
  64             GraphNode gn=(GraphNode) it.next();
  65             TermNode tn=(TermNode) gn.getOwner();
  66             MultUpdateNode mun=tn.getUpdate();
  67             if (togenerate.contains(gn))
  68             for (int i=0;i<mun.numUpdates();i++) {
  69                 UpdateNode un=mun.getUpdate(i);
  70                 String name="update"+String.valueOf(count++);
  71                 updatenames.put(un,name);
  72             }
  73         }
  74     }
  75
  76     public void generate(OutputStream outputrepair, OutputStream outputaux,OutputStream outputhead, String st) {
  77         this.outputrepair = new java.io.PrintWriter(outputrepair, true);
  78         this.outputaux = new java.io.PrintWriter(outputaux, true);
  79         this.outputhead = new java.io.PrintWriter(outputhead, true);
  80         headername=st;
  81         name_updates();
  82         generatetypechecks(true);
  83         generate_tokentable();
  84         generate_hashtables();
  85         generate_stateobject();
  86         generate_call();
  87         generate_start();
  88         generate_rules();
  89         if (!Compiler.REPAIR||Compiler.GENERATEDEBUGPRINT) {
  90             generate_print();
  91         }
  92         generate_checks();
  93         generate_teardown();
  94         CodeWriter crhead = new StandardCodeWriter(this.outputhead);
  95         CodeWriter craux = new StandardCodeWriter(this.outputaux);
  96         crhead.outputline("};");
  97         craux.outputline("}");
  98
  99         if (Compiler.GENERATEDEBUGHOOKS) {
 100             crhead.outputline("void debughook();");
 101             craux.outputline("void debughook() {}");
 102         }
 103         generatetypechecks(false);
 104         generate_computesizes();
 105         generatetypechecks(true);
 106         generate_recomputesizes();
 107         generatetypechecks(false);
 108         generate_updates();
 109         StructureGenerator sg=new StructureGenerator(state,this);
 110         sg.buildall();
 111         crhead.outputline("#endif");
 112     }
 113
 114     String ststate="state";
 115     String stmodel="model";
 116     String strepairtable="repairtable";
 117     String stleft="left";
 118     String stright="right";
 119     String stnew="newvalue";
 120
 121     private void generate_updates() {
 122         int count=0;
 123         CodeWriter crhead = new StandardCodeWriter(outputhead);
 124         CodeWriter craux = new StandardCodeWriter(outputaux);
 125         RelationDescriptor.prefix = "model->";
 126         SetDescriptor.prefix = "model->";
 127
 128         /* Rewrite globals */
 129
 130         for (Iterator it=this.state.stGlobals.descriptors();it.hasNext();) {
 131             VarDescriptor vd=(VarDescriptor)it.next();
 132             craux.outputline("#define "+vd.getSafeSymbol()+" "+ststate+"->"+vd.getSafeSymbol());
 133         }
 134
 135         for(Iterator it=termination.updatenodes.iterator();it.hasNext();) {
 136             GraphNode gn=(GraphNode) it.next();
 137             TermNode tn=(TermNode) gn.getOwner();
 138             MultUpdateNode mun=tn.getUpdate();
 139             boolean isrelation=(mun.getDescriptor() instanceof RelationDescriptor);
 140             if (togenerate.contains(gn))
 141             for (int i=0;i<mun.numUpdates();i++) {
 142                 UpdateNode un=mun.getUpdate(i);
 143                 String methodname=(String)updatenames.get(un);
 144
 145                 switch(mun.op) {
 146                 case MultUpdateNode.ADD:
 147                     if (isrelation) {
 148                         crhead.outputline("void "+methodname+"("+name+"_state * " +ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+", int "+stright+");");
 149                         craux.outputline("void "+methodname+"("+name+"_state * "+ ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+", int "+stright+")");
 150                     } else {
 151                         crhead.outputline("void "+methodname+"("+name+"_state * "+ ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+");");
 152                         craux.outputline("void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable+", int "+stleft+")");
 153                     }
 154                     craux.startblock();
 155                     craux.outputline("int maybe=0;");
 156                     if (Compiler.GENERATEINSTRUMENT)
 157                         craux.outputline("updatecount++;");
 158
 159                     final SymbolTable st = un.getRule().getSymbolTable();
 160                     CodeWriter cr = new StandardCodeWriter(outputaux) {
 161                         public SymbolTable getSymbolTable() { return st; }
 162                     };
 163                     un.generate(cr, false, false, stleft,stright, null,this);
 164                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 165                     craux.endblock();
 166                     break;
 167                 case MultUpdateNode.REMOVE: {
 168                     Rule r=un.getRule();
 169                     String methodcall="void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable;
 170                     for(int j=0;j<r.numQuantifiers();j++) {
 171                         Quantifier q=r.getQuantifier(j);
 172                         if (q instanceof SetQuantifier) {
 173                             SetQuantifier sq=(SetQuantifier) q;
 174                             methodcall+=","+sq.getVar().getType().getGenerateType().getSafeSymbol()+" "+sq.getVar().getSafeSymbol();
 175                         } else if (q instanceof RelationQuantifier) {
 176                             RelationQuantifier rq=(RelationQuantifier) q;
 177
 178                             methodcall+=","+rq.x.getType().getGenerateType().getSafeSymbol()+" "+rq.x.getSafeSymbol();
 179                             methodcall+=","+rq.y.getType().getGenerateType().getSafeSymbol()+" "+rq.y.getSafeSymbol();
 180                         } else if (q instanceof ForQuantifier) {
 181                             ForQuantifier fq=(ForQuantifier) q;
 182                             methodcall+=",int "+fq.getVar().getSafeSymbol();
 183                         }
 184                     }
 185                     methodcall+=")";
 186                     crhead.outputline(methodcall+";");
 187                     craux.outputline(methodcall);
 188                     craux.startblock();
 189                     craux.outputline("int maybe=0;");
 190                     if (Compiler.GENERATEINSTRUMENT)
 191                         craux.outputline("updatecount++;");
 192                     final SymbolTable st2 = un.getRule().getSymbolTable();
 193                     CodeWriter cr2 = new StandardCodeWriter(outputaux) {
 194                         public SymbolTable getSymbolTable() { return st2; }
 195                     };
 196                     un.generate(cr2, true, false, null,null, null,this);
 197                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 198                     craux.endblock();
 199                 }
 200                     break;
 201                 case MultUpdateNode.MODIFY: {
 202                     Rule r=un.getRule();
 203                     String methodcall="void "+methodname+"("+name+"_state * "+ststate+","+name+" * "+stmodel+", RepairHash * "+strepairtable;
 204                     for(int j=0;j<r.numQuantifiers();j++) {
 205                         Quantifier q=r.getQuantifier(j);
 206                         if (q instanceof SetQuantifier) {
 207                             SetQuantifier sq=(SetQuantifier) q;
 208                             methodcall+=","+sq.getVar().getType().getGenerateType().getSafeSymbol()+" "+sq.getVar().getSafeSymbol();
 209                         } else if (q instanceof RelationQuantifier) {
 210                             RelationQuantifier rq=(RelationQuantifier) q;
 211
 212                             methodcall+=", "+rq.x.getType().getGenerateType().getSafeSymbol()+" "+rq.x.getSafeSymbol();
 213                             methodcall+=", "+rq.y.getType().getGenerateType().getSafeSymbol()+" "+rq.y.getSafeSymbol();
 214                         } else if (q instanceof ForQuantifier) {
 215                             ForQuantifier fq=(ForQuantifier) q;
 216                             methodcall+=", int "+fq.getVar().getSafeSymbol();
 217                         }
 218                     }
 219                     methodcall+=", int "+stleft+", int "+stright+", int "+stnew;
 220                     methodcall+=")";
 221                     crhead.outputline(methodcall+";");
 222                     craux.outputline(methodcall);
 223                     craux.startblock();
 224                     craux.outputline("int maybe=0;");
 225                     if (Compiler.GENERATEINSTRUMENT)
 226                         craux.outputline("updatecount++;");
 227                     final SymbolTable st2 = un.getRule().getSymbolTable();
 228                     CodeWriter cr2 = new StandardCodeWriter(outputaux) {
 229                         public SymbolTable getSymbolTable() { return st2; }
 230                     };
 231                     un.generate(cr2, false, true, stleft, stright, stnew, this);
 232                     craux.outputline("if (maybe) printf(\"REALLY BAD\");");
 233                     craux.endblock();
 234                 }
 235                     break;
 236
 237                 default:
 238                     throw new Error("Nonimplement Update");
 239                 }
 240             }
 241         }
 242     }
 243
 244     private void generate_call() {
 245         CodeWriter cr = new StandardCodeWriter(outputrepair);
 246         VarDescriptor vdstate=VarDescriptor.makeNew("repairstate");
 247         cr.outputline(name+"_state * "+vdstate.getSafeSymbol()+"=new "+name+"_state();");
 248         Iterator globals=state.stGlobals.descriptors();
 249         while (globals.hasNext()) {
 250             VarDescriptor vd=(VarDescriptor) globals.next();
 251             cr.outputline(vdstate.getSafeSymbol()+"->"+vd.getSafeSymbol()+"=("+vd.getType().getGenerateType().getSafeSymbol()+")"+vd.getSafeSymbol()+";");
 252         }
 253         /* Insert repair here */
 254         cr.outputline(vdstate.getSafeSymbol()+"->doanalysis();");
 255         globals=state.stGlobals.descriptors();
 256         while (globals.hasNext()) {
 257             VarDescriptor vd=(VarDescriptor) globals.next();
 258             cr.outputline("*(("+vd.getType().getGenerateType().getSafeSymbol()+"*) &"+vd.getSafeSymbol()+")="+vdstate.getSafeSymbol()+"->"+vd.getSafeSymbol()+";");
 259         }
 260         cr.outputline("delete "+vdstate.getSafeSymbol()+";");
 261     }
 262
 263     private void generate_tokentable() {
 264         CodeWriter cr = new StandardCodeWriter(outputrepair);
 265         Iterator tokens = TokenLiteralExpr.tokens.keySet().iterator();
 266
 267         cr.outputline("");
 268         cr.outputline("// Token values");
 269         cr.outputline("");
 270
 271         while (tokens.hasNext()) {
 272             Object token = tokens.next();
 273             cr.outputline("// " + token.toString() + " = " + TokenLiteralExpr.tokens.get(token).toString());
 274         }
 275
 276         cr.outputline("");
 277         cr.outputline("");
 278     }
 279
 280     private void generate_stateobject() {
 281         CodeWriter crhead = new StandardCodeWriter(outputhead);
 282         crhead.outputline("class "+name+"_state {");
 283         crhead.outputline("public:");
 284         Iterator globals=state.stGlobals.descriptors();
 285         while (globals.hasNext()) {
 286             VarDescriptor vd=(VarDescriptor) globals.next();
 287             crhead.outputline(vd.getType().getGenerateType().getSafeSymbol()+" "+vd.getSafeSymbol()+";");
 288         }
 289         crhead.outputline("void computesizes(int *,int **);");
 290         crhead.outputline("void recomputesizes();");
 291     }
 292
 293     private void generate_computesizes() {
 294         int max=TypeDescriptor.counter;
 295         TypeDescriptor[] tdarray=new TypeDescriptor[max];
 296         for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 297             TypeDescriptor ttd=(TypeDescriptor)it.next();
 298             tdarray[ttd.getId()]=ttd;
 299         }
 300         final SymbolTable st = state.stGlobals;
 301         CodeWriter cr = new StandardCodeWriter(outputaux) {
 302                 public SymbolTable getSymbolTable() { return st; }
 303             };
 304
 305         cr.outputline("void "+name+"_state::computesizes(int *sizearray,int **numele) {");
 306         cr.outputline("int maybe=0;");
 307         for(int i=0;i<max;i++) {
 308             TypeDescriptor td=tdarray[i];
 309             Expr size=td.getSizeExpr();
 310             VarDescriptor vd=VarDescriptor.makeNew("size");
 311             size.generate(cr,vd);
 312             cr.outputline("sizearray["+i+"]="+vd.getSafeSymbol()+";");
 313         }
 314         for(int i=0;i<max;i++) {
 315             TypeDescriptor td=tdarray[i];
 316             if (td instanceof StructureTypeDescriptor) {
 317                 StructureTypeDescriptor std=(StructureTypeDescriptor) td;
 318                 for(int j=0;j<std.fieldlist.size();j++) {
 319                     FieldDescriptor fd=(FieldDescriptor)std.fieldlist.get(j);
 320                     if (fd instanceof ArrayDescriptor) {
 321                         ArrayDescriptor ad=(ArrayDescriptor)fd;
 322                         Expr index=ad.getIndexBound();
 323                         VarDescriptor vd=VarDescriptor.makeNew("index");
 324                         index.generate(cr,vd);
 325                         cr.outputline("numele["+i+"]["+j+"]="+vd.getSafeSymbol()+";");
 326                     }
 327                 }
 328             }
 329         }
 330         cr.outputline("if (maybe) printf(\"BAD ERROR\");");
 331         cr.outputline("}");
 332     }
 333
 334     private void generate_recomputesizes() {
 335         int max=TypeDescriptor.counter;
 336         TypeDescriptor[] tdarray=new TypeDescriptor[max];
 337         for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 338             TypeDescriptor ttd=(TypeDescriptor)it.next();
 339             tdarray[ttd.getId()]=ttd;
 340         }
 341         final SymbolTable st = state.stGlobals;
 342         CodeWriter cr = new StandardCodeWriter(outputaux) {
 343                 public SymbolTable getSymbolTable() { return st; }
 344             };
 345         cr.outputline("void "+name+"_state::recomputesizes() {");
 346         cr.outputline("int maybe=0;");
 347         for(int i=0;i<max;i++) {
 348             TypeDescriptor td=tdarray[i];
 349             Expr size=td.getSizeExpr();
 350             VarDescriptor vd=VarDescriptor.makeNew("size");
 351             size.generate(cr,vd);
 352         }
 353         for(int i=0;i<max;i++) {
 354             TypeDescriptor td=tdarray[i];
 355             if (td instanceof StructureTypeDescriptor) {
 356                 StructureTypeDescriptor std=(StructureTypeDescriptor) td;
 357                 for(int j=0;j<std.fieldlist.size();j++) {
 358                     FieldDescriptor fd=(FieldDescriptor)std.fieldlist.get(j);
 359                     if (fd instanceof ArrayDescriptor) {
 360                         ArrayDescriptor ad=(ArrayDescriptor)fd;
 361                         Expr index=ad.getIndexBound();
 362                         VarDescriptor vd=VarDescriptor.makeNew("index");
 363                         index.generate(cr,vd);
 364                     }
 365                 }
 366             }
 367         }
 368         cr.outputline("if (maybe) printf(\"BAD ERROR\");");
 369         cr.outputline("}");
 370     }
 371
 372
 373     private void generate_hashtables() {
 374         CodeWriter craux = new StandardCodeWriter(outputaux);
 375         CodeWriter crhead = new StandardCodeWriter(outputhead);
 376         crhead.outputline("#ifndef "+name+"_h");
 377         crhead.outputline("#define "+name+"_h");
 378         crhead.outputline("#include \"SimpleHash.h\"");
 379         crhead.outputline("extern \"C\" {");
 380         crhead.outputline("#include \"instrument.h\"");
 381         crhead.outputline("}");
 382         crhead.outputline("#include <stdio.h>");
 383         crhead.outputline("#include <stdlib.h>");
 384         crhead.outputline("class "+name+" {");
 385         crhead.outputline("public:");
 386         crhead.outputline(name+"();");
 387         crhead.outputline("~"+name+"();");
 388         craux.outputline("#include \""+headername+"\"");
 389         craux.outputline("#include \"size.h\"");
 390
 391         craux.outputline(name+"::"+name+"() {");
 392         craux.outputline("// creating hashtables ");
 393
 394         /* build sets */
 395         Iterator sets = state.stSets.descriptors();
 396
 397         /* first pass create all the hash tables */
 398         while (sets.hasNext()) {
 399             SetDescriptor set = (SetDescriptor) sets.next();
 400             crhead.outputline("SimpleHash* " + set.getSafeSymbol() + "_hash;");
 401             craux.outputline(set.getSafeSymbol() + "_hash = new SimpleHash();");
 402         }
 403
 404         /* second pass build relationships between hashtables */
 405         sets = state.stSets.descriptors();
 406
 407         while (sets.hasNext()) {
 408             SetDescriptor set = (SetDescriptor) sets.next();
 409             Iterator subsets = set.subsets();
 410
 411             while (subsets.hasNext()) {
 412                 SetDescriptor subset = (SetDescriptor) subsets.next();
 413                 craux.outputline(subset.getSafeSymbol() + "_hash->addParent(" + set.getSafeSymbol() + "_hash);");
 414             }
 415         }
 416
 417         /* build relations */
 418         Iterator relations = state.stRelations.descriptors();
 419
 420         /* first pass create all the hash tables */
 421         while (relations.hasNext()) {
 422             RelationDescriptor relation = (RelationDescriptor) relations.next();
 423
 424             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 425                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hash;");
 426                 craux.outputline(relation.getSafeSymbol() + "_hash = new SimpleHash();");
 427             }
 428
 429             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 430                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hashinv;");
 431                 craux.outputline(relation.getSafeSymbol() + "_hashinv = new SimpleHash();");
 432             }
 433         }
 434
 435         craux.outputline("}");
 436         crhead.outputline("};");
 437         craux.outputline(name+"::~"+name+"() {");
 438         craux.outputline("// deleting hashtables");
 439
 440         /* build destructor */
 441         sets = state.stSets.descriptors();
 442
 443         /* first pass create all the hash tables */
 444         while (sets.hasNext()) {
 445             SetDescriptor set = (SetDescriptor) sets.next();
 446             craux.outputline("delete "+set.getSafeSymbol() + "_hash;");
 447         }
 448
 449         /* destroy relations */
 450         relations = state.stRelations.descriptors();
 451
 452         /* first pass create all the hash tables */
 453         while (relations.hasNext()) {
 454             RelationDescriptor relation = (RelationDescriptor) relations.next();
 455
 456             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 457                 craux.outputline("delete "+relation.getSafeSymbol() + "_hash;");
 458             }
 459
 460             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 461                 craux.outputline("delete " + relation.getSafeSymbol() + "_hashinv;");
 462             }
 463         }
 464         craux.outputline("}");
 465     }
 466
 467     private void generate_start() {
 468         CodeWriter crhead = new StandardCodeWriter(outputhead);
 469         CodeWriter craux = new StandardCodeWriter(outputaux);
 470         oldmodel=VarDescriptor.makeNew("oldmodel");
 471         newmodel=VarDescriptor.makeNew("newmodel");
 472         worklist=VarDescriptor.makeNew("worklist");
 473         goodflag=VarDescriptor.makeNew("goodflag");
 474         repairtable=VarDescriptor.makeNew("repairtable");
 475
 476         if (Compiler.GENERATEINSTRUMENT) {
 477             craux.outputline("int updatecount;");
 478             craux.outputline("int rebuildcount;");
 479             craux.outputline("int abstractcount;");
 480         }
 481
 482         crhead.outputline("void doanalysis();");
 483         craux.outputline("void "+name +"_state::doanalysis()");
 484         craux.startblock();
 485         if (Compiler.GENERATEINSTRUMENT) {
 486             craux.outputline("updatecount=0;");
 487             craux.outputline("rebuildcount=0;");
 488             craux.outputline("abstractcount=0;");
 489         }
 490         craux.outputline("int highmark;");
 491         craux.outputline("initializestack(&highmark);");
 492         craux.outputline("typeobject *typeobject1=gettypeobject();");
 493         craux.outputline("typeobject1->computesizes(this);");
 494         craux.outputline("recomputesizes();");
 495         craux.outputline(name+ " * "+oldmodel.getSafeSymbol()+"=0;");
 496         craux.outputline("WorkList * "+worklist.getSafeSymbol()+" = new WorkList();");
 497         craux.outputline("RepairHash * "+repairtable.getSafeSymbol()+"=0;");
 498         craux.outputline("while (1)");
 499         craux.startblock();
 500         craux.outputline(name+ " * "+newmodel.getSafeSymbol()+"=new "+name+"();");
 501         craux.outputline(worklist.getSafeSymbol()+"->reset();");
 502         if (Compiler.GENERATEINSTRUMENT)
 503             craux.outputline("rebuildcount++;");
 504     }
 505
 506     private void generate_teardown() {
 507         CodeWriter cr = new StandardCodeWriter(outputaux);
 508         cr.endblock();
 509         if (Compiler.GENERATEINSTRUMENT) {
 510             cr.outputline("printf(\"updatecount=%d\\n\",updatecount);");
 511             cr.outputline("printf(\"rebuildcount=%d\\n\",rebuildcount);");
 512             cr.outputline("printf(\"abstractcount=%d\\n\",abstractcount);");
 513         }
 514
 515     }
 516
 517     private void generate_print() {
 518
 519         final SymbolTable st = new SymbolTable();
 520
 521         CodeWriter cr = new StandardCodeWriter(outputaux) {
 522                 public SymbolTable getSymbolTable() { return st; }
 523             };
 524
 525         cr.outputline("// printing sets!");
 526         cr.outputline("printf(\"\\n\\nPRINTING SETS AND RELATIONS\\n\");");
 527
 528         Iterator setiterator = state.stSets.descriptors();
 529         while (setiterator.hasNext()) {
 530             SetDescriptor sd = (SetDescriptor) setiterator.next();
 531             if (sd.getSymbol().equals("int") || sd.getSymbol().equals("token")) {
 532                 continue;
 533             }
 534
 535             String setname = sd.getSafeSymbol();
 536
 537             cr.startblock();
 538             cr.outputline("// printing set " + setname);
 539             cr.outputline("printf(\"\\nPrinting set " + sd.getSymbol() + " - %d elements \\n\", " + setname + "_hash->count());");
 540             cr.outputline("SimpleIterator __setiterator;");
 541             cr.outputline("" + setname + "_hash->iterator(__setiterator);");
 542             cr.outputline("while (__setiterator.hasNext())");
 543             cr.startblock();
 544             cr.outputline("int __setval = (int) __setiterator.next();");
 545
 546             TypeDescriptor td = sd.getType();
 547             if (td instanceof StructureTypeDescriptor) {
 548                 StructureTypeDescriptor std = (StructureTypeDescriptor) td;
 549                 VarDescriptor vd = new VarDescriptor ("__setval", "__setval", td, false);
 550                 std.generate_printout(cr, vd);
 551             } else { // Missing type descriptor or reserved type, just print int
 552                 cr.outputline("printf(\"<%d> \", __setval);");
 553             }
 554
 555
 556             cr.endblock();
 557             cr.endblock();
 558         }
 559
 560         cr.outputline("printf(\"\\n\\n------------------- END PRINTING\\n\");");
 561     }
 562
 563     Set ruleset=null;
 564     private void generate_rules() {
 565         /* first we must sort the rules */
 566         RelationDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 567         SetDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 568         System.out.println("SCC="+(mrd.numSCC()-1));
 569         for(int sccindex=0;sccindex<mrd.numSCC();sccindex++) {
 570             ruleset=mrd.getSCC(sccindex);
 571             boolean needworklist=mrd.hasCycle(sccindex);
 572
 573             if (!needworklist) {
 574                 Iterator iterator_rs = ruleset.iterator();
 575                 while (iterator_rs.hasNext()) {
 576                     Rule rule = (Rule) iterator_rs.next();
 577                     if (rule.getnogenerate())
 578                         continue;
 579                     {
 580                         final SymbolTable st = rule.getSymbolTable();
 581                         CodeWriter cr = new StandardCodeWriter(outputaux) {
 582                                 public SymbolTable getSymbolTable() { return st; }
 583                             };
 584                         InvariantValue ivalue=new InvariantValue();
 585                         cr.setInvariantValue(ivalue);
 586
 587                         cr.outputline("// build " +escape(rule.toString()));
 588                         cr.startblock();
 589                         cr.outputline("int maybe=0;");
 590
 591                         Expr ruleexpr=rule.getGuardExpr();
 592                         HashSet invariantvars=new HashSet();
 593                         Set invariants=ruleexpr.findInvariants(invariantvars);
 594
 595                         if ((ruleexpr instanceof BooleanLiteralExpr)&&
 596                             ((BooleanLiteralExpr)ruleexpr).getValue()) {
 597                             if (rule.getInclusion() instanceof SetInclusion) {
 598                                 invariants.addAll(((SetInclusion)rule.getInclusion()).getExpr().findInvariants(invariantvars));
 599                             } else if (rule.getInclusion() instanceof RelationInclusion) {
 600                                 invariants.addAll(((RelationInclusion)rule.getInclusion()).getLeftExpr().findInvariants(invariantvars));
 601                                 invariants.addAll(((RelationInclusion)rule.getInclusion()).getRightExpr().findInvariants(invariantvars));
 602                             }
 603                         }
 604                         ListIterator quantifiers = rule.quantifiers();
 605                         while (quantifiers.hasNext()) {
 606                             Quantifier quantifier = (Quantifier) quantifiers.next();
 607                             if (quantifier instanceof ForQuantifier) {
 608                                 ForQuantifier fq=(ForQuantifier)quantifier;
 609                                 invariants.addAll(fq.lower.findInvariants(invariantvars));
 610                                 invariants.addAll(fq.upper.findInvariants(invariantvars));
 611                             }
 612                         }
 613
 614                         for(Iterator invit=invariants.iterator();invit.hasNext();) {
 615                             Expr invexpr=(Expr)invit.next();
 616                             VarDescriptor tmpvd=VarDescriptor.makeNew("tmpvar");
 617                             VarDescriptor maybevd=VarDescriptor.makeNew("maybevar");
 618                             invexpr.generate(cr,tmpvd);
 619                             cr.outputline("int "+maybevd.getSafeSymbol()+"=maybe;");
 620                             cr.outputline("maybe=0;");
 621                             ivalue.assignPair(invexpr,tmpvd,maybevd);
 622                         }
 623
 624                         quantifiers = rule.quantifiers();
 625                         while (quantifiers.hasNext()) {
 626                             Quantifier quantifier = (Quantifier) quantifiers.next();
 627                             quantifier.generate_open(cr);
 628                         }
 629
 630                         /* pretty print! */
 631                         cr.output("//");
 632                         rule.getGuardExpr().prettyPrint(cr);
 633                         cr.outputline("");
 634
 635                         /* now we have to generate the guard test */
 636                         VarDescriptor guardval = VarDescriptor.makeNew();
 637                         rule.getGuardExpr().generate(cr, guardval);
 638                         cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 639                         cr.startblock();
 640
 641                         /* now we have to generate the inclusion code */
 642                         currentrule=rule;
 643                         rule.getInclusion().generate(cr);
 644                         cr.endblock();
 645                         while (quantifiers.hasPrevious()) {
 646                             Quantifier quantifier = (Quantifier) quantifiers.previous();
 647                             cr.endblock();
 648                         }
 649                         cr.endblock();
 650                         cr.outputline("");
 651                         cr.outputline("");
 652                     }
 653                 }
 654             } else {
 655                 CodeWriter cr2 = new StandardCodeWriter(outputaux);
 656
 657                 for(Iterator initialworklist=ruleset.iterator();initialworklist.hasNext();) {
 658                     /** Construct initial worklist set */
 659                     Rule rule=(Rule)initialworklist.next();
 660                     cr2.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
 661                 }
 662
 663                 cr2.outputline("while ("+worklist.getSafeSymbol()+"->hasMoreElements())");
 664                 cr2.startblock();
 665                 VarDescriptor idvar=VarDescriptor.makeNew("id");
 666                 cr2.outputline("int "+idvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getid();");
 667
 668                 String elseladder = "if";
 669
 670                 Iterator iterator_rules = ruleset.iterator();
 671                 while (iterator_rules.hasNext()) {
 672
 673                     Rule rule = (Rule) iterator_rules.next();
 674                     int dispatchid = rule.getNum();
 675
 676                     {
 677                         final SymbolTable st = rule.getSymbolTable();
 678                         CodeWriter cr = new StandardCodeWriter(outputaux) {
 679                                 public SymbolTable getSymbolTable() { return st; }
 680                             };
 681
 682                         cr.indent();
 683                         cr.outputline(elseladder + " ("+idvar.getSafeSymbol()+" == " + dispatchid + ")");
 684                         cr.startblock();
 685                         cr.outputline("int maybe=0;");
 686                         VarDescriptor typevar=VarDescriptor.makeNew("type");
 687                         VarDescriptor leftvar=VarDescriptor.makeNew("left");
 688                         VarDescriptor rightvar=VarDescriptor.makeNew("right");
 689                         cr.outputline("int "+typevar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->gettype();");
 690                         cr.outputline("int "+leftvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getlvalue();");
 691                         cr.outputline("int "+rightvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getrvalue();");
 692                         cr.outputline("// build " +escape(rule.toString()));
 693
 694
 695                         for (int j=0;j<rule.numQuantifiers();j++) {
 696                             Quantifier quantifier = rule.getQuantifier(j);
 697                             quantifier.generate_open(cr, typevar.getSafeSymbol(),j,leftvar.getSafeSymbol(),rightvar.getSafeSymbol());
 698                         }
 699
 700                         /* pretty print! */
 701                         cr.output("//");
 702
 703                         rule.getGuardExpr().prettyPrint(cr);
 704                         cr.outputline("");
 705
 706                         /* now we have to generate the guard test */
 707
 708                         VarDescriptor guardval = VarDescriptor.makeNew();
 709                         rule.getGuardExpr().generate(cr, guardval);
 710
 711                         cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 712                         cr.startblock();
 713
 714                         /* now we have to generate the inclusion code */
 715                         currentrule=rule;
 716                         rule.getInclusion().generate(cr);
 717                         cr.endblock();
 718
 719                         for (int j=0;j<rule.numQuantifiers();j++) {
 720                             cr.endblock();
 721                         }
 722
 723                         // close startblocks generated by DotExpr memory checks
 724                         //DotExpr.generate_memory_endblocks(cr);
 725
 726                         cr.endblock(); // end else-if WORKLIST ladder
 727
 728                         elseladder = "else if";
 729                     }
 730                 }
 731                 cr2.outputline("else");
 732                 cr2.startblock();
 733                 cr2.outputline("printf(\"VERY BAD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\\n\\n\");");
 734                 cr2.outputline("exit(1);");
 735                 cr2.endblock();
 736                 // end block created for worklist
 737                 cr2.outputline(worklist.getSafeSymbol()+"->pop();");
 738                 cr2.endblock();
 739             }
 740         }
 741     }
 742
 743     public static String escape(String s) {
 744         String newstring="";
 745         for(int i=0;i<s.length();i++) {
 746             char c=s.charAt(i);
 747             if (c=='"')
 748                 newstring+="\"";
 749             else
 750                 newstring+=c;
 751         }
 752         return newstring;
 753     }
 754
 755     private void generate_checks() {
 756
 757         /* do constraint checks */
 758         //        Vector constraints = state.vConstraints;
 759
 760
 761         //        for (int i = 0; i < constraints.size(); i++) {
 762         //            Constraint constraint = (Constraint) constraints.elementAt(i);
 763         Iterator i;
 764         if (Compiler.REPAIR)
 765             i=termination.constraintdependence.computeOrdering().iterator();
 766         else
 767             i=state.vConstraints.iterator();
 768         for (; i.hasNext();) {
 769             Constraint constraint;
 770             if (Compiler.REPAIR)
 771                 constraint= (Constraint) ((GraphNode)i.next()).getOwner();
 772             else
 773                 constraint=(Constraint)i.next();
 774
 775             {
 776                 final SymbolTable st = constraint.getSymbolTable();
 777                 CodeWriter cr = new StandardCodeWriter(outputaux);
 778                 cr.pushSymbolTable(constraint.getSymbolTable());
 779
 780                 cr.outputline("// checking " + escape(constraint.toString()));
 781                 cr.startblock();
 782
 783                 ListIterator quantifiers = constraint.quantifiers();
 784
 785                 while (quantifiers.hasNext()) {
 786                     Quantifier quantifier = (Quantifier) quantifiers.next();
 787                     quantifier.generate_open(cr);
 788                 }
 789
 790                 cr.outputline("int maybe = 0;");
 791
 792                 /* now we have to generate the guard test */
 793
 794                 VarDescriptor constraintboolean = VarDescriptor.makeNew("constraintboolean");
 795                 constraint.getLogicStatement().generate(cr, constraintboolean);
 796
 797                 cr.outputline("if (maybe)");
 798                 cr.startblock();
 799                 cr.outputline("printf(\"maybe fail " +  escape(constraint.toString()) + ". \\n\");");
 800                 cr.outputline("exit(1);");
 801                 cr.endblock();
 802
 803                 cr.outputline("else if (!" + constraintboolean.getSafeSymbol() + ")");
 804                 cr.startblock();
 805                 if (!Compiler.REPAIR||Compiler.GENERATEDEBUGHOOKS)
 806                     cr.outputline("printf(\"fail " + escape(constraint.toString()) + ". \\n\");");
 807
 808                 if (Compiler.REPAIR) {
 809                 /* Do repairs */
 810                 /* Build new repair table */
 811                 cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 812                 cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 813                 cr.outputline(repairtable.getSafeSymbol()+"=new RepairHash();");
 814
 815                 if (Compiler.GENERATEDEBUGHOOKS)
 816                     cr.outputline("debughook();");
 817                 /* Compute cost of each repair */
 818                 VarDescriptor mincost=VarDescriptor.makeNew("mincost");
 819                 VarDescriptor mincostindex=VarDescriptor.makeNew("mincostindex");
 820                 Vector dnfconst=new Vector();
 821                 dnfconst.addAll((Set)termination.conjunctionmap.get(constraint));
 822
 823                 if (dnfconst.size()<=1) {
 824                     cr.outputline("int "+mincostindex.getSafeSymbol()+"=0;");
 825                 }
 826                 if (dnfconst.size()>1) {
 827                     cr.outputline("int "+mincostindex.getSafeSymbol()+";");
 828                     boolean first=true;
 829                     for(int j=0;j<dnfconst.size();j++) {
 830                         GraphNode gn=(GraphNode)dnfconst.get(j);
 831                         Conjunction conj=((TermNode)gn.getOwner()).getConjunction();
 832                         if (removed.contains(gn))
 833                             continue;
 834
 835                         VarDescriptor costvar;
 836                         if (first) {
 837                             costvar=mincost;
 838                         } else
 839                             costvar=VarDescriptor.makeNew("cost");
 840                         for(int k=0;k<conj.size();k++) {
 841                             DNFPredicate dpred=conj.get(k);
 842                             Predicate p=dpred.getPredicate();
 843                             boolean negate=dpred.isNegated();
 844                             VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 845                             p.generate(cr,predvalue);
 846                             if (k==0)
 847                                 cr.outputline("int "+costvar.getSafeSymbol()+"=0;");
 848
 849                             if (negate)
 850                                 cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 851                             else
 852                                 cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 853                             cr.outputline(costvar.getSafeSymbol()+"+="+cost.getCost(dpred)+";");
 854                         }
 855
 856                         if(!first) {
 857                             cr.outputline("if ("+costvar.getSafeSymbol()+"<"+mincost.getSafeSymbol()+")");
 858                             cr.startblock();
 859                             cr.outputline(mincost.getSafeSymbol()+"="+costvar.getSafeSymbol()+";");
 860                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 861                             cr.endblock();
 862                         } else
 863                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 864                         first=false;
 865                     }
 866                 }
 867                 cr.outputline("switch("+mincostindex.getSafeSymbol()+") {");
 868                 for(int j=0;j<dnfconst.size();j++) {
 869                     GraphNode gn=(GraphNode)dnfconst.get(j);
 870                     Conjunction conj=((TermNode)gn.getOwner()).getConjunction();
 871
 872                     if (removed.contains(gn))
 873                         continue;
 874                     cr.outputline("case "+j+":");
 875                     cr.startblock();
 876                     for(int k=0;k<conj.size();k++) {
 877                         DNFPredicate dpred=conj.get(k);
 878                         Predicate p=dpred.getPredicate();
 879                         boolean negate=dpred.isNegated();
 880                         VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 881                         p.generate(cr,predvalue);
 882                         if (negate)
 883                             cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 884                         else
 885                             cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 886                         cr.startblock();
 887                         if (Compiler.GENERATEINSTRUMENT)
 888                             cr.outputline("abstractcount++;");
 889                         if (p instanceof InclusionPredicate)
 890                             generateinclusionrepair(conj,dpred, cr);
 891                         else if (p instanceof ExprPredicate) {
 892                             ExprPredicate ep=(ExprPredicate)p;
 893                             if (ep.getType()==ExprPredicate.SIZE)
 894                                 generatesizerepair(conj,dpred,cr);
 895                             else if (ep.getType()==ExprPredicate.COMPARISON)
 896                                 generatecomparisonrepair(conj,dpred,cr);
 897                         } else throw new Error("Unrecognized Predicate");
 898                         cr.endblock();
 899                     }
 900                     /* Update model */
 901                     cr.endblock();
 902                     cr.outputline("break;");
 903                 }
 904                 cr.outputline("}");
 905
 906                 cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 907                 cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 908                 cr.outputline(oldmodel.getSafeSymbol()+"="+newmodel.getSafeSymbol()+";");
 909                 cr.outputline("goto rebuild;");  /* Rebuild model and all */
 910                 }
 911                 cr.endblock();
 912
 913                 while (quantifiers.hasPrevious()) {
 914                     Quantifier quantifier = (Quantifier) quantifiers.previous();
 915                     cr.endblock();
 916                 }
 917                 cr.endblock();
 918                 cr.outputline("");
 919                 cr.outputline("");
 920             }
 921         }
 922         CodeWriter cr = new StandardCodeWriter(outputaux);
 923         cr.startblock();
 924         cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 925         cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 926         cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 927         cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 928         cr.outputline("delete "+newmodel.getSafeSymbol()+";");
 929         cr.outputline("delete "+worklist.getSafeSymbol()+";");
 930         cr.outputline("resettypemap();");
 931         cr.outputline("break;");
 932         cr.endblock();
 933         cr.outputline("rebuild:");
 934         cr.outputline(";");
 935
 936     }
 937
 938     private MultUpdateNode getmultupdatenode(Conjunction conj, DNFPredicate dpred, int repairtype) {
 939         MultUpdateNode mun=null;
 940         GraphNode gn=(GraphNode) termination.conjtonodemap.get(conj);
 941         for(Iterator edgeit=gn.edges();(mun==null)&&edgeit.hasNext();) {
 942             GraphNode gn2=((GraphNode.Edge) edgeit.next()).getTarget();
 943             TermNode tn2=(TermNode)gn2.getOwner();
 944             if (tn2.getType()==TermNode.ABSTRACT) {
 945                 AbstractRepair ar=tn2.getAbstract();
 946                 if (((repairtype==-1)||(ar.getType()==repairtype))&&
 947                     ar.getPredicate()==dpred) {
 948                     for(Iterator edgeit2=gn2.edges();edgeit2.hasNext();) {
 949                         GraphNode gn3=((GraphNode.Edge) edgeit2.next()).getTarget();
 950                         if (!removed.contains(gn3)) {
 951                             TermNode tn3=(TermNode)gn3.getOwner();
 952                             if (tn3.getType()==TermNode.UPDATE) {
 953                                 mun=tn3.getUpdate();
 954                                 break;
 955                             }
 956                         }
 957                     }
 958                 }
 959             }
 960         }
 961         return mun;
 962     }
 963
 964     /** Generates abstract (and concrete) repair for a comparison */
 965
 966     private void generatecomparisonrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
 967         MultUpdateNode munmodify=getmultupdatenode(conj,dpred,AbstractRepair.MODIFYRELATION);
 968         MultUpdateNode munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
 969         MultUpdateNode munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
 970         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
 971         RelationDescriptor rd=(RelationDescriptor)ep.getDescriptor();
 972         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
 973         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
 974         boolean inverted=ep.inverted();
 975         boolean negated=dpred.isNegated();
 976         OpExpr expr=(OpExpr)ep.expr;
 977         Opcode opcode=expr.getOpcode();
 978         VarDescriptor leftside=VarDescriptor.makeNew("leftside");
 979         VarDescriptor rightside=VarDescriptor.makeNew("rightside");
 980         VarDescriptor newvalue=VarDescriptor.makeNew("newvalue");
 981         if (!inverted) {
 982             ((RelationExpr)expr.getLeftExpr()).getExpr().generate(cr,leftside);
 983             expr.getRightExpr().generate(cr,newvalue);
 984             cr.outputline(rd.getRange().getType().getGenerateType().getSafeSymbol()+" "+rightside.getSafeSymbol()+";");
 985             cr.outputline(rd.getSafeSymbol()+"_hash->get("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
 986         } else {
 987             ((RelationExpr)expr.getLeftExpr()).getExpr().generate(cr,rightside);
 988             expr.getRightExpr().generate(cr,newvalue);
 989             cr.outputline(rd.getDomain().getType().getGenerateType().getSafeSymbol()+" "+leftside.getSafeSymbol()+";");
 990             cr.outputline(rd.getSafeSymbol()+"_hashinv->get("+rightside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
 991         }
 992         if (negated)
 993             if (opcode==Opcode.GT) {
 994                 opcode=Opcode.LE;
 995             } else if (opcode==Opcode.GE) {
 996                 opcode=Opcode.LT;
 997             } else if (opcode==Opcode.LT) {
 998                 opcode=Opcode.GE;
 999             } else if (opcode==Opcode.LE) {
1000                 opcode=Opcode.GT;
1001             } else if (opcode==Opcode.EQ) {
1002                 opcode=Opcode.NE;
1003             } else if (opcode==Opcode.NE) {
1004                 opcode=Opcode.EQ;
1005             } else {
1006                 throw new Error("Unrecognized Opcode");
1007             }
1008
1009         if (opcode==Opcode.GT) {
1010             cr.outputline(newvalue.getSafeSymbol()+"++;");
1011         } else if (opcode==Opcode.GE) {
1012             /* Equal */
1013         } else if (opcode==Opcode.LT) {
1014             cr.outputline(newvalue.getSafeSymbol()+"--;");
1015         } else if (opcode==Opcode.LE) {
1016             /* Equal */
1017         } else if (opcode==Opcode.EQ) {
1018             /* Equal */
1019         } else if (opcode==Opcode.NE) { /* search for FLAGNE if this is changed*/
1020             cr.outputline(newvalue.getSafeSymbol()+"++;");
1021         } else {
1022             throw new Error("Unrecognized Opcode");
1023         }
1024         /* Do abstract repairs */
1025         if (usageimage) {
1026             cr.outputline(rd.getSafeSymbol()+"_hash->remove("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1027             if (!inverted) {
1028                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
1029             } else {
1030                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1031             }
1032         }
1033         if (usageinvimage) {
1034             cr.outputline(rd.getSafeSymbol()+"_hashinv->remove("+rightside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
1035             if (!inverted) {
1036                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newvalue.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
1037             } else {
1038                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+rightside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
1039             }
1040         }
1041         /* Do concrete repairs */
1042         if (munmodify!=null) {
1043             for(int i=0;i<state.vRules.size();i++) {
1044                 Rule r=(Rule)state.vRules.get(i);
1045                 if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1046                     for(int j=0;j<munmodify.numUpdates();j++) {
1047                         UpdateNode un=munmodify.getUpdate(j);
1048                         if (un.getRule()==r) {
1049                             /* Update for rule r */
1050                             String name=(String)updatenames.get(un);
1051                             cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+","+newvalue.getSafeSymbol()+");");
1052                         }
1053                     }
1054                 }
1055             }
1056
1057         } else {
1058             /* Start with scheduling removal */
1059             for(int i=0;i<state.vRules.size();i++) {
1060                 Rule r=(Rule)state.vRules.get(i);
1061                 if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1062                     for(int j=0;j<munremove.numUpdates();j++) {
1063                         UpdateNode un=munremove.getUpdate(i);
1064                         if (un.getRule()==r) {
1065                             /* Update for rule r */
1066                             String name=(String)updatenames.get(un);
1067                             cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+");");
1068                         }
1069                     }
1070                 }
1071             }
1072             /* Now do addition */
1073             UpdateNode un=munadd.getUpdate(0);
1074             String name=(String)updatenames.get(un);
1075             if (!inverted) {
1076                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
1077             } else {
1078                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1079             }
1080         }
1081     }
1082
1083     public void generatesizerepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr) {
1084         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
1085         OpExpr expr=(OpExpr)ep.expr;
1086         Opcode opcode=expr.getOpcode();
1087         opcode=Opcode.translateOpcode(dpred.isNegated(),opcode);
1088
1089         MultUpdateNode munremove;
1090
1091         MultUpdateNode munadd;
1092         if (ep.getDescriptor() instanceof RelationDescriptor) {
1093             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
1094             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
1095         } else {
1096             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMSET);
1097             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTOSET);
1098         }
1099         int size=ep.rightSize();
1100         VarDescriptor sizevar=VarDescriptor.makeNew("size");
1101         ((OpExpr)expr).left.generate(cr, sizevar);
1102         VarDescriptor change=VarDescriptor.makeNew("change");
1103         cr.outputline("int "+change.getSafeSymbol()+";");
1104         boolean generateadd=false;
1105         boolean generateremove=false;
1106         if (opcode==Opcode.GT) {
1107             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
1108             generateadd=true;
1109             generateremove=false;
1110         } else if (opcode==Opcode.GE) {
1111             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
1112             generateadd=true;
1113             generateremove=false;
1114         } else if (opcode==Opcode.LT) {
1115             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size-1)+"-"+sizevar.getSafeSymbol()+";");
1116             generateadd=false;
1117             generateremove=true;
1118         } else if (opcode==Opcode.LE) {
1119             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
1120             generateadd=false;
1121             generateremove=true;
1122         } else if (opcode==Opcode.EQ) {
1123             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
1124             if (size==0)
1125                 generateadd=false;
1126             else
1127                 generateadd=true;
1128             generateremove=true;
1129         } else if (opcode==Opcode.NE) {
1130             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
1131             generateadd=true;
1132             generateremove=false;
1133         } else {
1134             throw new Error("Unrecognized Opcode");
1135         }
1136
1137 // In some cases the analysis has determined that generating removes
1138 // is unnecessary
1139         if (generateremove&&munremove==null)
1140             generateremove=false;
1141
1142         Descriptor d=ep.getDescriptor();
1143         if (generateremove) {
1144             cr.outputline("for(;"+change.getSafeSymbol()+"<0;"+change.getSafeSymbol()+"++)");
1145             cr.startblock();
1146             /* Find element to remove */
1147             VarDescriptor leftvar=VarDescriptor.makeNew("leftvar");
1148             VarDescriptor rightvar=VarDescriptor.makeNew("rightvar");
1149             if (d instanceof RelationDescriptor) {
1150                 if (ep.inverted()) {
1151                     rightvar=((ImageSetExpr)((SizeofExpr)((OpExpr)expr).left).setexpr).getVar();
1152                     cr.outputline("int "+leftvar.getSafeSymbol()+";");
1153                     cr.outputline(d.getSafeSymbol()+"_hashinv->get((int)"+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1154                 } else {
1155                     leftvar=((ImageSetExpr)((SizeofExpr)((OpExpr)expr).left).setexpr).getVar();
1156                     cr.outputline("int "+rightvar.getSafeSymbol()+"=0;");
1157                     cr.outputline(d.getSafeSymbol()+"_hash->get((int)"+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1158                 }
1159             } else {
1160                 cr.outputline("int "+leftvar.getSafeSymbol()+"="+d.getSafeSymbol()+"_hash->firstkey();");
1161             }
1162             /* Generate abstract remove instruction */
1163             if (d instanceof RelationDescriptor) {
1164                 RelationDescriptor rd=(RelationDescriptor) d;
1165                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1166                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1167                 if (usageimage)
1168                     cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1169                 if (usageinvimage)
1170                     cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1171             } else {
1172                 cr.outputline(d.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1173             }
1174             /* Generate concrete remove instruction */
1175             for(int i=0;i<state.vRules.size();i++) {
1176                 Rule r=(Rule)state.vRules.get(i);
1177                 if (r.getInclusion().getTargetDescriptors().contains(d)) {
1178                     for(int j=0;j<munremove.numUpdates();j++) {
1179                         UpdateNode un=munremove.getUpdate(j);
1180                         if (un.getRule()==r) {
1181                                 /* Update for rule rule r */
1182                             String name=(String)updatenames.get(un);
1183                             if (d instanceof RelationDescriptor) {
1184                                 cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1185                             } else {
1186                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1187                             }
1188                         }
1189                     }
1190                 }
1191             }
1192             cr.endblock();
1193         }
1194         if (generateadd) {
1195
1196             cr.outputline("for(;"+change.getSafeSymbol()+">0;"+change.getSafeSymbol()+"--)");
1197             cr.startblock();
1198             VarDescriptor newobject=VarDescriptor.makeNew("newobject");
1199             if (d instanceof RelationDescriptor) {
1200                 VarDescriptor otherside=((ImageSetExpr)((SizeofExpr)((OpExpr)ep.expr).left).setexpr).vd;
1201                 RelationDescriptor rd=(RelationDescriptor)d;
1202                 if (termination.sources.relsetSource(rd,!ep.inverted())) {
1203                     /* Set Source */
1204                     SetDescriptor sd=termination.sources.relgetSourceSet(rd,!ep.inverted());
1205                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1206                     cr.outputline(sd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1207                     cr.outputline("SimpleIterator "+iterator.getSafeSymbol()+";");
1208                     cr.outputline("for("+sd.getSafeSymbol()+"_hash->iterator("+ iterator.getSafeSymbol() +");"+iterator.getSafeSymbol()+".hasNext();)");
1209                     cr.startblock();
1210                     if (ep.inverted()) {
1211                         cr.outputline("if (!"+rd.getSafeSymbol()+"_hashinv->contains("+iterator.getSafeSymbol()+".key(),"+otherside.getSafeSymbol()+"))");
1212                     } else {
1213                         cr.outputline("if (!"+rd.getSafeSymbol()+"_hash->contains("+otherside.getSafeSymbol()+","+iterator.getSafeSymbol()+".key()))");
1214                     }
1215                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1216                     cr.outputline(iterator.getSafeSymbol()+".next();");
1217                     cr.endblock();
1218                 } else if (termination.sources.relallocSource(rd,!ep.inverted())) {
1219                     /* Allocation Source*/
1220                     termination.sources.relgenerateSourceAlloc(cr,newobject,rd,!ep.inverted());
1221                 } else throw new Error("No source for adding to Relation");
1222                 if (ep.inverted()) {
1223                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1224                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1225                     if (usageimage)
1226                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1227                     if (usageinvimage)
1228                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1229
1230                     UpdateNode un=munadd.getUpdate(0);
1231                     String name=(String)updatenames.get(un);
1232                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1233                 } else {
1234                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1235                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1236                     if (usageimage)
1237                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1238                     if (usageinvimage)
1239                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1240                     UpdateNode un=munadd.getUpdate(0);
1241                     String name=(String)updatenames.get(un);
1242                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1243                 }
1244             } else {
1245                 SetDescriptor sd=(SetDescriptor)d;
1246                 if (termination.sources.setSource(sd)) {
1247                     /* Set Source */
1248                     /* Set Source */
1249                     SetDescriptor sourcesd=termination.sources.getSourceSet(sd);
1250                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1251                     cr.outputline(sourcesd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1252                     cr.outputline("SimpleIterator "+iterator.getSafeSymbol()+";");
1253                     cr.outputline("for("+sourcesd.getSafeSymbol()+"_hash->iterator("+iterator.getSafeSymbol()+");"+iterator.getSafeSymbol()+".hasNext();)");
1254                     cr.startblock();
1255                     cr.outputline("if (!"+sd.getSafeSymbol()+"_hash->contains("+iterator.getSafeSymbol()+".key()))");
1256                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1257                     cr.outputline(iterator.getSafeSymbol()+".next();");
1258                     cr.endblock();
1259                 } else if (termination.sources.allocSource(sd)) {
1260                     /* Allocation Source*/
1261                     termination.sources.generateSourceAlloc(cr,newobject,sd);
1262                 } else throw new Error("No source for adding to Set");
1263                 cr.outputline(sd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1264                 UpdateNode un=munadd.getUpdate(0);
1265                 String name=(String)updatenames.get(un);
1266                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1267             }
1268             cr.endblock();
1269         }
1270     }
1271
1272     public void generateinclusionrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
1273         InclusionPredicate ip=(InclusionPredicate) dpred.getPredicate();
1274         boolean negated=dpred.isNegated();
1275         MultUpdateNode mun=getmultupdatenode(conj,dpred,-1);
1276         VarDescriptor leftvar=VarDescriptor.makeNew("left");
1277         ip.expr.generate(cr, leftvar);
1278
1279         if (negated) {
1280             if (ip.setexpr instanceof ImageSetExpr) {
1281                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1282                 VarDescriptor rightvar=ise.getVar();
1283                 boolean inverse=ise.inverted();
1284                 RelationDescriptor rd=ise.getRelation();
1285                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1286                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1287                 if (inverse) {
1288                     if (usageimage)
1289                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1290                     if (usageinvimage)
1291                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1292                 } else {
1293                     if (usageimage)
1294                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1295                     if (usageinvimage)
1296                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1297                 }
1298                 for(int i=0;i<state.vRules.size();i++) {
1299                     Rule r=(Rule)state.vRules.get(i);
1300                     if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1301                         for(int j=0;j<mun.numUpdates();j++) {
1302                             UpdateNode un=mun.getUpdate(j);
1303                             if (un.getRule()==r) {
1304                                 /* Update for rule rule r */
1305                                 String name=(String)updatenames.get(un);
1306                                 if (inverse) {
1307                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1308                                 } else {
1309                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1310                                 }
1311                             }
1312                         }
1313                     }
1314                 }
1315             } else {
1316                 SetDescriptor sd=ip.setexpr.sd;
1317                 cr.outputline(sd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1318
1319                 for(int i=0;i<state.vRules.size();i++) {
1320                     Rule r=(Rule)state.vRules.get(i);
1321                     if (r.getInclusion().getTargetDescriptors().contains(sd)) {
1322                         for(int j=0;j<mun.numUpdates();j++) {
1323                             UpdateNode un=mun.getUpdate(j);
1324                             if (un.getRule()==r) {
1325                                 /* Update for rule rule r */
1326                                 String name=(String)updatenames.get(un);
1327                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+sd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1328                             }
1329                         }
1330                     }
1331                 }
1332             }
1333         } else {
1334             /* Generate update */
1335             if (ip.setexpr instanceof ImageSetExpr) {
1336                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1337                 VarDescriptor rightvar=ise.getVar();
1338                 boolean inverse=ise.inverted();
1339                 RelationDescriptor rd=ise.getRelation();
1340                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1341                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1342                 if (inverse) {
1343                     if (usageimage)
1344                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1345                     if (usageinvimage)
1346                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1347                 } else {
1348                     if (usageimage)
1349                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1350                     if (usageinvimage)
1351                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1352                 }
1353                 UpdateNode un=mun.getUpdate(0);
1354                 String name=(String)updatenames.get(un);
1355                 if (inverse) {
1356                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1357                 } else {
1358                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1359                 }
1360             } else {
1361                 SetDescriptor sd=ip.setexpr.sd;
1362                 cr.outputline(sd.getSafeSymbol() + "_hash->add((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1363
1364                 UpdateNode un=mun.getUpdate(0);
1365                 /* Update for rule rule r */
1366                 String name=(String)updatenames.get(un);
1367                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1368             }
1369         }
1370     }
1371
1372     public static Vector getrulelist(Descriptor d) {
1373         Vector dispatchrules = new Vector();
1374         Vector rules = State.currentState.vRules;
1375
1376         for (int i = 0; i < rules.size(); i++) {
1377             Rule rule = (Rule) rules.elementAt(i);
1378             Set requiredsymbols = rule.getRequiredDescriptors();
1379
1380             // #TBD#: in general this is wrong because these descriptors may contain descriptors
1381             // bound in "in?" expressions which need to be dealt with in a topologically sorted
1382             // fashion...
1383
1384             if (rule.getRequiredDescriptors().contains(d)) {
1385                 dispatchrules.addElement(rule);
1386             }
1387         }
1388         return dispatchrules;
1389     }
1390
1391     private boolean need_compensation(Rule r) {
1392         if (!Compiler.REPAIR)
1393             return false;
1394         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1395         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1396             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1397             GraphNode gn2=edge.getTarget();
1398             if (!removed.contains(gn2)) {
1399                 TermNode tn2=(TermNode)gn2.getOwner();
1400                 if (tn2.getType()==TermNode.CONSEQUENCE)
1401                     return false;
1402             }
1403         }
1404         return true;
1405     }
1406
1407     private UpdateNode find_compensation(Rule r) {
1408         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1409         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1410             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1411             GraphNode gn2=edge.getTarget();
1412             if (!removed.contains(gn2)) {
1413                 TermNode tn2=(TermNode)gn2.getOwner();
1414                 if (tn2.getType()==TermNode.UPDATE) {
1415                     MultUpdateNode mun=tn2.getUpdate();
1416                     for(int i=0;i<mun.numUpdates();i++) {
1417                         UpdateNode un=mun.getUpdate(i);
1418                         if (un.getRule()==r)
1419                             return un;
1420                     }
1421                 }
1422             }
1423         }
1424         throw new Error("No Compensation Update could be found");
1425     }
1426
1427     public void generate_dispatch(CodeWriter cr, RelationDescriptor rd, String leftvar, String rightvar) {
1428         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1429         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1430
1431         if (!(usageinvimage||usageimage)) /* not used at all*/
1432             return;
1433
1434         cr.outputline("// RELATION DISPATCH ");
1435         if (Compiler.REPAIR) {
1436             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1437             if (usageimage)
1438                 cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hash->contains("+leftvar+","+rightvar+"))");
1439             else
1440                 cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hashinv->contains("+rightvar+","+leftvar+"))");
1441
1442             cr.startblock(); {
1443                 /* Adding new item */
1444                 /* Perform safety checks */
1445                 cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1446                 cr.outputline(repairtable.getSafeSymbol()+"->containsrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+"))");
1447                 cr.startblock(); {
1448                     /* Have update to call into */
1449                     VarDescriptor mdfyptr=VarDescriptor.makeNew("modifyptr");
1450                     VarDescriptor ismdfyptr=VarDescriptor.makeNew("ismodifyptr");
1451                     cr.outputline("int "+ismdfyptr.getSafeSymbol()+"="+repairtable.getSafeSymbol()+"->ismodify("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1452
1453
1454
1455
1456                     String parttype="";
1457                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1458                         if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1459                             parttype=parttype+", int, int";
1460                         else
1461                             parttype=parttype+", int";
1462                     }
1463                     VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1464                     VarDescriptor tmpptr=VarDescriptor.makeNew("tempupdateptr");
1465
1466                     String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1467                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1468                         Quantifier q=currentrule.getQuantifier(i);
1469                         if (q instanceof SetQuantifier) {
1470                             SetQuantifier sq=(SetQuantifier) q;
1471                             methodcall+=","+sq.getVar().getSafeSymbol();
1472                         } else if (q instanceof RelationQuantifier) {
1473                             RelationQuantifier rq=(RelationQuantifier) q;
1474                             methodcall+=","+rq.x.getSafeSymbol();
1475                             methodcall+=","+rq.y.getSafeSymbol();
1476                         } else if (q instanceof ForQuantifier) {
1477                             ForQuantifier fq=(ForQuantifier) q;
1478                             methodcall+=","+fq.getVar().getSafeSymbol();
1479                         }
1480                     }
1481
1482
1483
1484                     cr.outputline("void *"+tmpptr.getSafeSymbol()+"=");
1485                     cr.outputline("(void *) "+repairtable.getSafeSymbol()+"->getrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1486                     cr.outputline("if ("+ismdfyptr.getSafeSymbol()+")");
1487                     {
1488                         cr.startblock();
1489                         cr.outputline("int "+mdfyptr.getSafeSymbol()+"="+repairtable.getSafeSymbol()+"->getrelation2("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1490                         cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+",int,int,int)="+"(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+",int,int,int)) "+tmpptr.getSafeSymbol()+";");
1491                         cr.outputline(methodcall+","+leftvar+", "+rightvar+", "+mdfyptr.getSafeSymbol() +");");
1492                         cr.endblock();
1493                     }
1494                     cr.outputline("else ");
1495                     {
1496                         cr.startblock();
1497                         cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")="+"(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+tmpptr.getSafeSymbol()+";");
1498                         cr.outputline(methodcall+");");
1499                         cr.endblock();
1500                     }
1501                     cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1502                     cr.outputline("goto rebuild;");
1503                 }
1504                 cr.endblock();
1505
1506                 /* Build standard compensation actions */
1507                 if (need_compensation(currentrule)) {
1508                     UpdateNode un=find_compensation(currentrule);
1509                     String name=(String)updatenames.get(un);
1510                     usedupdates.add(un); /* Mark as used */
1511                     String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1512                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1513                         Quantifier q=currentrule.getQuantifier(i);
1514                         if (q instanceof SetQuantifier) {
1515                             SetQuantifier sq=(SetQuantifier) q;
1516                             methodcall+=","+sq.getVar().getSafeSymbol();
1517                         } else if (q instanceof RelationQuantifier) {
1518                             RelationQuantifier rq=(RelationQuantifier) q;
1519                             methodcall+=","+rq.x.getSafeSymbol();
1520                             methodcall+=","+rq.y.getSafeSymbol();
1521                         } else if (q instanceof ForQuantifier) {
1522                             ForQuantifier fq=(ForQuantifier) q;
1523                             methodcall+=","+fq.getVar().getSafeSymbol();
1524                         }
1525                     }
1526                     methodcall+=");";
1527                     cr.outputline(methodcall);
1528                     cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1529                     cr.outputline("goto rebuild;");
1530                 }
1531             }
1532             cr.endblock();
1533         }
1534
1535         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1536         cr.outputline("int " + addeditem + "=0;");
1537
1538         String ifstring="if (!maybe&&";
1539         boolean dogenerate=false;
1540         if (rd.getDomain().getType() instanceof StructureTypeDescriptor)  {
1541             dogenerate=true;
1542             ifstring+=leftvar;
1543         }
1544
1545         if (rd.getRange().getType() instanceof StructureTypeDescriptor)  {
1546             if (dogenerate)
1547                 ifstring+="&&"+rightvar;
1548             else
1549                 ifstring+=rightvar;
1550             dogenerate=true;
1551         }
1552
1553         ifstring+=")";
1554
1555         if (rd.testUsage(RelationDescriptor.IMAGE)) {
1556             cr.outputline(ifstring);
1557             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hash->add((int)" + leftvar + ", (int)" + rightvar+ ");");
1558         }
1559
1560         if (rd.testUsage(RelationDescriptor.INVIMAGE)) {
1561             cr.outputline(ifstring);
1562             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar + ", (int)" + leftvar + ");");
1563         }
1564
1565
1566         Vector dispatchrules = getrulelist(rd);
1567
1568         Set toremove=new HashSet();
1569         for(int i=0;i<dispatchrules.size();i++) {
1570             Rule r=(Rule)dispatchrules.get(i);
1571             if (!ruleset.contains(r))
1572                 toremove.add(r);
1573         }
1574         dispatchrules.removeAll(toremove);
1575         if (dispatchrules.size() == 0) {
1576             cr.outputline("// nothing to dispatch");
1577             return;
1578         }
1579
1580         cr.outputline("if (" + addeditem + ")");
1581         cr.startblock();
1582
1583         for(int i = 0; i < dispatchrules.size(); i++) {
1584             Rule rule = (Rule) dispatchrules.elementAt(i);
1585             if (rule.getGuardExpr().getRequiredDescriptors().contains(rd)) {
1586                 /* Guard depends on this relation, so we recomput everything */
1587                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1588             } else {
1589                 for (int j=0;j<rule.numQuantifiers();j++) {
1590                     Quantifier q=rule.getQuantifier(j);
1591                     if (q.getRequiredDescriptors().contains(rd)) {
1592                         /* Generate add */
1593                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+leftvar+","+rightvar+");");
1594                     }
1595                 }
1596             }
1597         }
1598
1599         cr.endblock();
1600     }
1601
1602
1603     public void generate_dispatch(CodeWriter cr, SetDescriptor sd, String setvar) {
1604         cr.outputline("// SET DISPATCH ");
1605         if (Compiler.REPAIR) {
1606             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1607             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+sd.getJustSafeSymbol()+"_hash->contains("+setvar+"))");
1608             cr.startblock(); {
1609                 /* Adding new item */
1610                 /* See if there is an outstanding update in the repairtable */
1611                 cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1612                 cr.outputline(repairtable.getSafeSymbol()+"->containsset("+sd.getNum()+","+currentrule.getNum()+","+setvar+"))");
1613                 cr.startblock(); {
1614                     /* Have update to call into */
1615                     VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1616                     String parttype="";
1617                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1618                         if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1619                             parttype=parttype+", int, int";
1620                         else
1621                             parttype=parttype+", int";
1622                     }
1623                     cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")=");
1624                     cr.outputline("(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+repairtable.getSafeSymbol()+"->getset("+sd.getNum()+","+currentrule.getNum()+","+setvar+");");
1625                     String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+
1626                         repairtable.getSafeSymbol();
1627                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1628                         Quantifier q=currentrule.getQuantifier(i);
1629                         if (q instanceof SetQuantifier) {
1630                             SetQuantifier sq=(SetQuantifier) q;
1631                             methodcall+=","+sq.getVar().getSafeSymbol();
1632                         } else if (q instanceof RelationQuantifier) {
1633                             RelationQuantifier rq=(RelationQuantifier) q;
1634                             methodcall+=","+rq.x.getSafeSymbol();
1635                             methodcall+=","+rq.y.getSafeSymbol();
1636                         } else if (q instanceof ForQuantifier) {
1637                             ForQuantifier fq=(ForQuantifier) q;
1638                             methodcall+=","+fq.getVar().getSafeSymbol();
1639                         }
1640                     }
1641                     methodcall+=");";
1642                     cr.outputline(methodcall);
1643                     cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1644                     cr.outputline("goto rebuild;");
1645                 }
1646                 cr.endblock();
1647                 /* Build standard compensation actions */
1648                 Vector ruleset=new Vector();
1649                 ruleset.add(currentrule);
1650                 if (state.implicitruleinv.containsKey(currentrule))
1651                     ruleset.addAll((Set)state.implicitruleinv.get(currentrule));
1652                 for(int i=0;i<ruleset.size();i++) {
1653                     Rule itrule=(Rule)ruleset.get(i);
1654
1655                     if (need_compensation(itrule)) {
1656                         UpdateNode un=find_compensation(itrule);
1657                         String name=(String)updatenames.get(un);
1658                         usedupdates.add(un); /* Mark as used */
1659
1660                         String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+
1661                             repairtable.getSafeSymbol();
1662                         for(int j=0;j<currentrule.numQuantifiers();j++) {
1663                             Quantifier q=currentrule.getQuantifier(j);
1664                             if (q instanceof SetQuantifier) {
1665                                 SetQuantifier sq=(SetQuantifier) q;
1666                                 methodcall+=","+sq.getVar().getSafeSymbol();
1667                             } else if (q instanceof RelationQuantifier) {
1668                                 RelationQuantifier rq=(RelationQuantifier) q;
1669                                 methodcall+=","+rq.x.getSafeSymbol();
1670                                 methodcall+=","+rq.y.getSafeSymbol();
1671                             } else if (q instanceof ForQuantifier) {
1672                                 ForQuantifier fq=(ForQuantifier) q;
1673                                 methodcall+=","+fq.getVar().getSafeSymbol();
1674                             }
1675                         }
1676                         methodcall+=");";
1677                         if (currentrule!=itrule) {
1678                             SetDescriptor sdrule=((SetInclusion)itrule.getInclusion()).getSet();
1679                             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1680                             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+sdrule.getJustSafeSymbol()+"_hash->contains("+setvar+"))");
1681                             cr.startblock();
1682                         }
1683                         cr.outputline(methodcall);
1684                         cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1685                         cr.outputline("goto rebuild;");
1686                         cr.endblock();
1687                     }
1688                     if (currentrule==itrule)
1689                         cr.endblock();
1690                 }
1691             }
1692         }
1693
1694         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1695         cr.outputline("int " + addeditem + " = 0;");
1696         if (sd.getType() instanceof StructureTypeDescriptor)  {
1697             cr.outputline("if (!maybe&&"+setvar+")");
1698         } else
1699             cr.outputline("if (!maybe)");
1700         cr.outputline(addeditem + " = " + sd.getSafeSymbol() + "_hash->add((int)" + setvar +  ", (int)" + setvar + ");");
1701         cr.startblock();
1702         Vector dispatchrules = getrulelist(sd);
1703
1704         Set toremove=new HashSet();
1705         for(int i=0;i<dispatchrules.size();i++) {
1706             Rule r=(Rule)dispatchrules.get(i);
1707             if (!ruleset.contains(r))
1708                 toremove.add(r);
1709         }
1710         dispatchrules.removeAll(toremove);
1711
1712         if (dispatchrules.size() == 0) {
1713             cr.outputline("// nothing to dispatch");
1714             cr.endblock();
1715             return;
1716         }
1717         /* Add item to worklist if new */
1718         cr.outputline("if ("+addeditem+")");
1719         cr.startblock();
1720         for(int i = 0; i < dispatchrules.size(); i++) {
1721             Rule rule = (Rule) dispatchrules.elementAt(i);
1722             if (SetDescriptor.expand(rule.getGuardExpr().getRequiredDescriptors()).contains(sd)) {
1723                 /* Guard depends on this relation, so we recompute everything */
1724                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1725             } else {
1726                 for (int j=0;j<rule.numQuantifiers();j++) {
1727                     Quantifier q=rule.getQuantifier(j);
1728                     if (SetDescriptor.expand(q.getRequiredDescriptors()).contains(sd)) {
1729                         /* Generate add */
1730                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+setvar+",0);");
1731                     }
1732                 }
1733             }
1734         }
1735         cr.endblock();
1736         cr.endblock();
1737     }
1738 }