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         if (Compiler.ALLOCATECPLUSPLUS) {
 391             for(Iterator it=state.stTypes.descriptors();it.hasNext();) {
 392                 TypeDescriptor td=(TypeDescriptor)it.next();
 393                 if (td instanceof StructureTypeDescriptor) {
 394                     if (((StructureTypeDescriptor)td).size()>0) {
 395                         FieldDescriptor fd=((StructureTypeDescriptor)td).get(0);
 396                         if (fd.getSymbol().startsWith("_vptr_")) {
 397                             String vtable="_ZTV";
 398                             vtable+=td.getSymbol().length();
 399                             vtable+=td.getSymbol();
 400                             craux.outputline("extern void * "+vtable+";");
 401                         }
 402                     }
 403                 }
 404             }
 405         }
 406         craux.outputline(name+"::"+name+"() {");
 407         craux.outputline("// creating hashtables ");
 408
 409         /* build sets */
 410         Iterator sets = state.stSets.descriptors();
 411
 412         /* first pass create all the hash tables */
 413         while (sets.hasNext()) {
 414             SetDescriptor set = (SetDescriptor) sets.next();
 415             crhead.outputline("SimpleHash* " + set.getSafeSymbol() + "_hash;");
 416             craux.outputline(set.getSafeSymbol() + "_hash = new SimpleHash();");
 417         }
 418
 419         /* second pass build relationships between hashtables */
 420         sets = state.stSets.descriptors();
 421
 422         while (sets.hasNext()) {
 423             SetDescriptor set = (SetDescriptor) sets.next();
 424             Iterator subsets = set.subsets();
 425
 426             while (subsets.hasNext()) {
 427                 SetDescriptor subset = (SetDescriptor) subsets.next();
 428                 craux.outputline(subset.getSafeSymbol() + "_hash->addParent(" + set.getSafeSymbol() + "_hash);");
 429             }
 430         }
 431
 432         /* build relations */
 433         Iterator relations = state.stRelations.descriptors();
 434
 435         /* first pass create all the hash tables */
 436         while (relations.hasNext()) {
 437             RelationDescriptor relation = (RelationDescriptor) relations.next();
 438
 439             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 440                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hash;");
 441                 craux.outputline(relation.getSafeSymbol() + "_hash = new SimpleHash();");
 442             }
 443
 444             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 445                 crhead.outputline("SimpleHash* " + relation.getSafeSymbol() + "_hashinv;");
 446                 craux.outputline(relation.getSafeSymbol() + "_hashinv = new SimpleHash();");
 447             }
 448         }
 449
 450         craux.outputline("}");
 451         crhead.outputline("};");
 452         craux.outputline(name+"::~"+name+"() {");
 453         craux.outputline("// deleting hashtables");
 454
 455         /* build destructor */
 456         sets = state.stSets.descriptors();
 457
 458         /* first pass create all the hash tables */
 459         while (sets.hasNext()) {
 460             SetDescriptor set = (SetDescriptor) sets.next();
 461             craux.outputline("delete "+set.getSafeSymbol() + "_hash;");
 462         }
 463
 464         /* destroy relations */
 465         relations = state.stRelations.descriptors();
 466
 467         /* first pass create all the hash tables */
 468         while (relations.hasNext()) {
 469             RelationDescriptor relation = (RelationDescriptor) relations.next();
 470
 471             if (relation.testUsage(RelationDescriptor.IMAGE)) {
 472                 craux.outputline("delete "+relation.getSafeSymbol() + "_hash;");
 473             }
 474
 475             if (relation.testUsage(RelationDescriptor.INVIMAGE)) {
 476                 craux.outputline("delete " + relation.getSafeSymbol() + "_hashinv;");
 477             }
 478         }
 479         craux.outputline("}");
 480     }
 481
 482     private void generate_start() {
 483         CodeWriter crhead = new StandardCodeWriter(outputhead);
 484         CodeWriter craux = new StandardCodeWriter(outputaux);
 485         oldmodel=VarDescriptor.makeNew("oldmodel");
 486         newmodel=VarDescriptor.makeNew("newmodel");
 487         worklist=VarDescriptor.makeNew("worklist");
 488         goodflag=VarDescriptor.makeNew("goodflag");
 489         repairtable=VarDescriptor.makeNew("repairtable");
 490
 491         if (Compiler.GENERATEINSTRUMENT) {
 492             craux.outputline("int updatecount;");
 493             craux.outputline("int rebuildcount;");
 494             craux.outputline("int abstractcount;");
 495         }
 496
 497         crhead.outputline("void doanalysis();");
 498         craux.outputline("void "+name +"_state::doanalysis()");
 499         craux.startblock();
 500         if (Compiler.GENERATEINSTRUMENT) {
 501             craux.outputline("updatecount=0;");
 502             craux.outputline("rebuildcount=0;");
 503             craux.outputline("abstractcount=0;");
 504         }
 505         craux.outputline("int highmark;");
 506         craux.outputline("initializestack(&highmark);");
 507         craux.outputline("typeobject *typeobject1=gettypeobject();");
 508         craux.outputline("typeobject1->computesizes(this);");
 509         craux.outputline("recomputesizes();");
 510         craux.outputline(name+ " * "+oldmodel.getSafeSymbol()+"=0;");
 511         craux.outputline("WorkList * "+worklist.getSafeSymbol()+" = new WorkList();");
 512         craux.outputline("RepairHash * "+repairtable.getSafeSymbol()+"=0;");
 513         craux.outputline("while (1)");
 514         craux.startblock();
 515         craux.outputline(name+ " * "+newmodel.getSafeSymbol()+"=new "+name+"();");
 516         craux.outputline(worklist.getSafeSymbol()+"->reset();");
 517         if (Compiler.GENERATEINSTRUMENT)
 518             craux.outputline("rebuildcount++;");
 519     }
 520
 521     private void generate_teardown() {
 522         CodeWriter cr = new StandardCodeWriter(outputaux);
 523         cr.endblock();
 524         if (Compiler.GENERATEINSTRUMENT) {
 525             cr.outputline("printf(\"updatecount=%d\\n\",updatecount);");
 526             cr.outputline("printf(\"rebuildcount=%d\\n\",rebuildcount);");
 527             cr.outputline("printf(\"abstractcount=%d\\n\",abstractcount);");
 528         }
 529
 530     }
 531
 532     private void generate_print() {
 533
 534         final SymbolTable st = new SymbolTable();
 535
 536         CodeWriter cr = new StandardCodeWriter(outputaux) {
 537                 public SymbolTable getSymbolTable() { return st; }
 538             };
 539
 540         cr.outputline("// printing sets!");
 541         cr.outputline("printf(\"\\n\\nPRINTING SETS AND RELATIONS\\n\");");
 542
 543         Iterator setiterator = state.stSets.descriptors();
 544         while (setiterator.hasNext()) {
 545             SetDescriptor sd = (SetDescriptor) setiterator.next();
 546             if (sd.getSymbol().equals("int") || sd.getSymbol().equals("token")) {
 547                 continue;
 548             }
 549
 550             String setname = sd.getSafeSymbol();
 551
 552             cr.startblock();
 553             cr.outputline("// printing set " + setname);
 554             cr.outputline("printf(\"\\nPrinting set " + sd.getSymbol() + " - %d elements \\n\", " + setname + "_hash->count());");
 555             cr.outputline("SimpleIterator __setiterator;");
 556             cr.outputline("" + setname + "_hash->iterator(__setiterator);");
 557             cr.outputline("while (__setiterator.hasNext())");
 558             cr.startblock();
 559             cr.outputline("int __setval = (int) __setiterator.next();");
 560
 561             TypeDescriptor td = sd.getType();
 562             if (td instanceof StructureTypeDescriptor) {
 563                 StructureTypeDescriptor std = (StructureTypeDescriptor) td;
 564                 VarDescriptor vd = new VarDescriptor ("__setval", "__setval", td, false);
 565                 std.generate_printout(cr, vd);
 566             } else { // Missing type descriptor or reserved type, just print int
 567                 cr.outputline("printf(\"<%d> \", __setval);");
 568             }
 569
 570
 571             cr.endblock();
 572             cr.endblock();
 573         }
 574
 575         cr.outputline("printf(\"\\n\\n------------------- END PRINTING\\n\");");
 576     }
 577
 578     Set ruleset=null;
 579     private void generate_rules() {
 580         /* first we must sort the rules */
 581         RelationDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 582         SetDescriptor.prefix = newmodel.getSafeSymbol()+"->";
 583         System.out.println("SCC="+(mrd.numSCC()-1));
 584         for(int sccindex=0;sccindex<mrd.numSCC();sccindex++) {
 585             ruleset=mrd.getSCC(sccindex);
 586             boolean needworklist=mrd.hasCycle(sccindex);
 587
 588             if (!needworklist) {
 589                 Iterator iterator_rs = ruleset.iterator();
 590                 while (iterator_rs.hasNext()) {
 591                     Rule rule = (Rule) iterator_rs.next();
 592                     if (rule.getnogenerate())
 593                         continue;
 594                     {
 595                         final SymbolTable st = rule.getSymbolTable();
 596                         CodeWriter cr = new StandardCodeWriter(outputaux) {
 597                                 public SymbolTable getSymbolTable() { return st; }
 598                             };
 599                         InvariantValue ivalue=new InvariantValue();
 600                         cr.setInvariantValue(ivalue);
 601
 602                         cr.outputline("// build " +escape(rule.toString()));
 603                         cr.startblock();
 604                         cr.outputline("int maybe=0;");
 605
 606                         Expr ruleexpr=rule.getGuardExpr();
 607                         HashSet invariantvars=new HashSet();
 608                         Set invariants=ruleexpr.findInvariants(invariantvars);
 609
 610                         if ((ruleexpr instanceof BooleanLiteralExpr)&&
 611                             ((BooleanLiteralExpr)ruleexpr).getValue()) {
 612                             if (rule.getInclusion() instanceof SetInclusion) {
 613                                 invariants.addAll(((SetInclusion)rule.getInclusion()).getExpr().findInvariants(invariantvars));
 614                             } else if (rule.getInclusion() instanceof RelationInclusion) {
 615                                 invariants.addAll(((RelationInclusion)rule.getInclusion()).getLeftExpr().findInvariants(invariantvars));
 616                                 invariants.addAll(((RelationInclusion)rule.getInclusion()).getRightExpr().findInvariants(invariantvars));
 617                             }
 618                         }
 619                         ListIterator quantifiers = rule.quantifiers();
 620                         while (quantifiers.hasNext()) {
 621                             Quantifier quantifier = (Quantifier) quantifiers.next();
 622                             if (quantifier instanceof ForQuantifier) {
 623                                 ForQuantifier fq=(ForQuantifier)quantifier;
 624                                 invariants.addAll(fq.lower.findInvariants(invariantvars));
 625                                 invariants.addAll(fq.upper.findInvariants(invariantvars));
 626                             }
 627                         }
 628
 629                         for(Iterator invit=invariants.iterator();invit.hasNext();) {
 630                             Expr invexpr=(Expr)invit.next();
 631                             VarDescriptor tmpvd=VarDescriptor.makeNew("tmpvar");
 632                             VarDescriptor maybevd=VarDescriptor.makeNew("maybevar");
 633                             invexpr.generate(cr,tmpvd);
 634                             cr.outputline("int "+maybevd.getSafeSymbol()+"=maybe;");
 635                             cr.outputline("maybe=0;");
 636                             ivalue.assignPair(invexpr,tmpvd,maybevd);
 637                         }
 638
 639                         quantifiers = rule.quantifiers();
 640                         while (quantifiers.hasNext()) {
 641                             Quantifier quantifier = (Quantifier) quantifiers.next();
 642                             quantifier.generate_open(cr);
 643                         }
 644
 645                         /* pretty print! */
 646                         cr.output("//");
 647                         rule.getGuardExpr().prettyPrint(cr);
 648                         cr.outputline("");
 649
 650                         /* now we have to generate the guard test */
 651                         VarDescriptor guardval = VarDescriptor.makeNew();
 652                         rule.getGuardExpr().generate(cr, guardval);
 653                         cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 654                         cr.startblock();
 655
 656                         /* now we have to generate the inclusion code */
 657                         currentrule=rule;
 658                         rule.getInclusion().generate(cr);
 659                         cr.endblock();
 660                         while (quantifiers.hasPrevious()) {
 661                             Quantifier quantifier = (Quantifier) quantifiers.previous();
 662                             cr.endblock();
 663                         }
 664                         cr.endblock();
 665                         cr.outputline("");
 666                         cr.outputline("");
 667                     }
 668                 }
 669             } else {
 670                 CodeWriter cr2 = new StandardCodeWriter(outputaux);
 671
 672                 for(Iterator initialworklist=ruleset.iterator();initialworklist.hasNext();) {
 673                     /** Construct initial worklist set */
 674                     Rule rule=(Rule)initialworklist.next();
 675                     cr2.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
 676                 }
 677
 678                 cr2.outputline("while ("+worklist.getSafeSymbol()+"->hasMoreElements())");
 679                 cr2.startblock();
 680                 VarDescriptor idvar=VarDescriptor.makeNew("id");
 681                 cr2.outputline("int "+idvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getid();");
 682
 683                 String elseladder = "if";
 684
 685                 Iterator iterator_rules = ruleset.iterator();
 686                 while (iterator_rules.hasNext()) {
 687
 688                     Rule rule = (Rule) iterator_rules.next();
 689                     int dispatchid = rule.getNum();
 690
 691                     {
 692                         final SymbolTable st = rule.getSymbolTable();
 693                         CodeWriter cr = new StandardCodeWriter(outputaux) {
 694                                 public SymbolTable getSymbolTable() { return st; }
 695                             };
 696
 697                         cr.indent();
 698                         cr.outputline(elseladder + " ("+idvar.getSafeSymbol()+" == " + dispatchid + ")");
 699                         cr.startblock();
 700                         cr.outputline("int maybe=0;");
 701                         VarDescriptor typevar=VarDescriptor.makeNew("type");
 702                         VarDescriptor leftvar=VarDescriptor.makeNew("left");
 703                         VarDescriptor rightvar=VarDescriptor.makeNew("right");
 704                         cr.outputline("int "+typevar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->gettype();");
 705                         cr.outputline("int "+leftvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getlvalue();");
 706                         cr.outputline("int "+rightvar.getSafeSymbol()+"="+worklist.getSafeSymbol()+"->getrvalue();");
 707                         cr.outputline("// build " +escape(rule.toString()));
 708
 709
 710                         for (int j=0;j<rule.numQuantifiers();j++) {
 711                             Quantifier quantifier = rule.getQuantifier(j);
 712                             quantifier.generate_open(cr, typevar.getSafeSymbol(),j,leftvar.getSafeSymbol(),rightvar.getSafeSymbol());
 713                         }
 714
 715                         /* pretty print! */
 716                         cr.output("//");
 717
 718                         rule.getGuardExpr().prettyPrint(cr);
 719                         cr.outputline("");
 720
 721                         /* now we have to generate the guard test */
 722
 723                         VarDescriptor guardval = VarDescriptor.makeNew();
 724                         rule.getGuardExpr().generate(cr, guardval);
 725
 726                         cr.outputline("if (" + guardval.getSafeSymbol() + ")");
 727                         cr.startblock();
 728
 729                         /* now we have to generate the inclusion code */
 730                         currentrule=rule;
 731                         rule.getInclusion().generate(cr);
 732                         cr.endblock();
 733
 734                         for (int j=0;j<rule.numQuantifiers();j++) {
 735                             cr.endblock();
 736                         }
 737
 738                         // close startblocks generated by DotExpr memory checks
 739                         //DotExpr.generate_memory_endblocks(cr);
 740
 741                         cr.endblock(); // end else-if WORKLIST ladder
 742
 743                         elseladder = "else if";
 744                     }
 745                 }
 746                 cr2.outputline("else");
 747                 cr2.startblock();
 748                 cr2.outputline("printf(\"VERY BAD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\\n\\n\");");
 749                 cr2.outputline("exit(1);");
 750                 cr2.endblock();
 751                 // end block created for worklist
 752                 cr2.outputline(worklist.getSafeSymbol()+"->pop();");
 753                 cr2.endblock();
 754             }
 755         }
 756     }
 757
 758     public static String escape(String s) {
 759         String newstring="";
 760         for(int i=0;i<s.length();i++) {
 761             char c=s.charAt(i);
 762             if (c=='"')
 763                 newstring+="\"";
 764             else
 765                 newstring+=c;
 766         }
 767         return newstring;
 768     }
 769
 770     private void generate_checks() {
 771         /* do constraint checks */
 772         Iterator i;
 773         if (Compiler.REPAIR)
 774             i=termination.constraintdependence.computeOrdering().iterator();
 775         else
 776             i=state.vConstraints.iterator();
 777         for (; i.hasNext();) {
 778             Constraint constraint;
 779             if (Compiler.REPAIR)
 780                 constraint= (Constraint) ((GraphNode)i.next()).getOwner();
 781             else
 782                 constraint=(Constraint)i.next();
 783
 784             {
 785                 final SymbolTable st = constraint.getSymbolTable();
 786                 CodeWriter cr = new StandardCodeWriter(outputaux);
 787                 cr.pushSymbolTable(constraint.getSymbolTable());
 788
 789                 cr.outputline("// checking " + escape(constraint.toString()));
 790                 cr.startblock();
 791
 792                 ListIterator quantifiers = constraint.quantifiers();
 793
 794                 while (quantifiers.hasNext()) {
 795                     Quantifier quantifier = (Quantifier) quantifiers.next();
 796                     quantifier.generate_open(cr);
 797                 }
 798
 799                 cr.outputline("int maybe = 0;");
 800
 801                 /* now we have to generate the guard test */
 802
 803                 VarDescriptor constraintboolean = VarDescriptor.makeNew("constraintboolean");
 804                 constraint.getLogicStatement().generate(cr, constraintboolean);
 805
 806                 cr.outputline("if (maybe)");
 807                 cr.startblock();
 808                 cr.outputline("printf(\"maybe fail " +  escape(constraint.toString()) + ". \\n\");");
 809                 //cr.outputline("exit(1);");
 810                 cr.endblock();
 811
 812                 cr.outputline("else if (!" + constraintboolean.getSafeSymbol() + ")");
 813                 cr.startblock();
 814                 if (!Compiler.REPAIR||Compiler.GENERATEDEBUGHOOKS)
 815                     cr.outputline("printf(\"fail " + escape(constraint.toString()) + ". \\n\");");
 816
 817                 if (Compiler.REPAIR) {
 818                 /* Do repairs */
 819                 /* Build new repair table */
 820                 cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 821                 cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 822                 cr.outputline(repairtable.getSafeSymbol()+"=new RepairHash();");
 823
 824                 if (Compiler.GENERATEDEBUGHOOKS)
 825                     cr.outputline("debughook();");
 826                 /* Compute cost of each repair */
 827                 VarDescriptor mincost=VarDescriptor.makeNew("mincost");
 828                 VarDescriptor mincostindex=VarDescriptor.makeNew("mincostindex");
 829                 Vector dnfconst=new Vector();
 830                 dnfconst.addAll((Set)termination.conjunctionmap.get(constraint));
 831
 832                 if (dnfconst.size()<=1) {
 833                     cr.outputline("int "+mincostindex.getSafeSymbol()+"=0;");
 834                 }
 835                 if (dnfconst.size()>1) {
 836                     cr.outputline("int "+mincostindex.getSafeSymbol()+";");
 837                     boolean first=true;
 838                     for(int j=0;j<dnfconst.size();j++) {
 839                         GraphNode gn=(GraphNode)dnfconst.get(j);
 840                         Conjunction conj=((TermNode)gn.getOwner()).getConjunction();
 841                         if (removed.contains(gn))
 842                             continue;
 843
 844                         VarDescriptor costvar;
 845                         if (first) {
 846                             costvar=mincost;
 847                         } else
 848                             costvar=VarDescriptor.makeNew("cost");
 849                         for(int k=0;k<conj.size();k++) {
 850                             DNFPredicate dpred=conj.get(k);
 851                             Predicate p=dpred.getPredicate();
 852                             boolean negate=dpred.isNegated();
 853                             VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 854                             p.generate(cr,predvalue);
 855                             if (k==0)
 856                                 cr.outputline("int "+costvar.getSafeSymbol()+"=0;");
 857
 858                             if (negate)
 859                                 cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 860                             else
 861                                 cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 862                             cr.outputline(costvar.getSafeSymbol()+"+="+cost.getCost(dpred)+";");
 863                         }
 864
 865                         if(!first) {
 866                             cr.outputline("if ("+costvar.getSafeSymbol()+"<"+mincost.getSafeSymbol()+")");
 867                             cr.startblock();
 868                             cr.outputline(mincost.getSafeSymbol()+"="+costvar.getSafeSymbol()+";");
 869                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 870                             cr.endblock();
 871                         } else
 872                             cr.outputline(mincostindex.getSafeSymbol()+"="+j+";");
 873                         first=false;
 874                     }
 875                 }
 876                 cr.outputline("switch("+mincostindex.getSafeSymbol()+") {");
 877                 for(int j=0;j<dnfconst.size();j++) {
 878                     GraphNode gn=(GraphNode)dnfconst.get(j);
 879                     Conjunction conj=((TermNode)gn.getOwner()).getConjunction();
 880                     if (removed.contains(gn))
 881                         continue;
 882                     cr.outputline("case "+j+":");
 883                     cr.startblock();
 884                     for(int k=0;k<conj.size();k++) {
 885                         DNFPredicate dpred=conj.get(k);
 886                         Predicate p=dpred.getPredicate();
 887                         boolean negate=dpred.isNegated();
 888                         VarDescriptor predvalue=VarDescriptor.makeNew("Predicatevalue");
 889                         p.generate(cr,predvalue);
 890                         if (negate)
 891                             cr.outputline("if (maybe||"+predvalue.getSafeSymbol()+")");
 892                         else
 893                             cr.outputline("if (maybe||!"+predvalue.getSafeSymbol()+")");
 894                         cr.startblock();
 895                         if (Compiler.GENERATEINSTRUMENT)
 896                             cr.outputline("abstractcount++;");
 897                         if (p instanceof InclusionPredicate)
 898                             generateinclusionrepair(conj,dpred, cr);
 899                         else if (p instanceof ExprPredicate) {
 900                             ExprPredicate ep=(ExprPredicate)p;
 901                             if (ep.getType()==ExprPredicate.SIZE)
 902                                 generatesizerepair(conj,dpred,cr);
 903                             else if (ep.getType()==ExprPredicate.COMPARISON)
 904                                 generatecomparisonrepair(conj,dpred,cr);
 905                         } else throw new Error("Unrecognized Predicate");
 906                         cr.endblock();
 907                     }
 908                     /* Update model */
 909                     cr.endblock();
 910                     cr.outputline("break;");
 911                 }
 912                 cr.outputline("}");
 913
 914                 cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 915                 cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 916                 cr.outputline(oldmodel.getSafeSymbol()+"="+newmodel.getSafeSymbol()+";");
 917                 cr.outputline("goto rebuild;");  /* Rebuild model and all */
 918                 }
 919                 cr.endblock();
 920
 921                 while (quantifiers.hasPrevious()) {
 922                     Quantifier quantifier = (Quantifier) quantifiers.previous();
 923                     cr.endblock();
 924                 }
 925                 cr.endblock();
 926                 cr.outputline("");
 927                 cr.outputline("");
 928             }
 929         }
 930         CodeWriter cr = new StandardCodeWriter(outputaux);
 931         cr.startblock();
 932         cr.outputline("if ("+repairtable.getSafeSymbol()+")");
 933         cr.outputline("delete "+repairtable.getSafeSymbol()+";");
 934         cr.outputline("if ("+oldmodel.getSafeSymbol()+")");
 935         cr.outputline("delete "+oldmodel.getSafeSymbol()+";");
 936         cr.outputline("delete "+newmodel.getSafeSymbol()+";");
 937         cr.outputline("delete "+worklist.getSafeSymbol()+";");
 938         cr.outputline("resettypemap();");
 939         cr.outputline("break;");
 940         cr.endblock();
 941         cr.outputline("rebuild:");
 942         cr.outputline(";");
 943     }
 944
 945     private MultUpdateNode getmultupdatenode(Conjunction conj, DNFPredicate dpred, int repairtype) {
 946         Set nodes=getmultupdatenodeset(conj,dpred,repairtype);
 947         Iterator it=nodes.iterator();
 948         if (it.hasNext())
 949             return (MultUpdateNode)it.next();
 950         else
 951             return null;
 952     }
 953
 954     private Set getmultupdatenodeset(Conjunction conj, DNFPredicate dpred, int repairtype) {
 955         HashSet hs=new HashSet();
 956         GraphNode gn=(GraphNode) termination.conjtonodemap.get(conj);
 957         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
 958             GraphNode gn2=((GraphNode.Edge) edgeit.next()).getTarget();
 959             TermNode tn2=(TermNode)gn2.getOwner();
 960             if (tn2.getType()==TermNode.ABSTRACT) {
 961                 AbstractRepair ar=tn2.getAbstract();
 962                 if (((repairtype==-1)||(ar.getType()==repairtype))&&
 963                     ar.getPredicate()==dpred) {
 964                     for(Iterator edgeit2=gn2.edges();edgeit2.hasNext();) {
 965                         GraphNode gn3=((GraphNode.Edge) edgeit2.next()).getTarget();
 966                         if (!removed.contains(gn3)) {
 967                             TermNode tn3=(TermNode)gn3.getOwner();
 968                             if (tn3.getType()==TermNode.UPDATE) {
 969                                 hs.add(tn3.getUpdate());
 970                             }
 971                         }
 972                     }
 973                 }
 974             }
 975         }
 976         return hs;
 977     }
 978
 979     private AbstractRepair getabstractrepair(Conjunction conj, DNFPredicate dpred, int repairtype) {
 980         HashSet hs=new HashSet();
 981         MultUpdateNode mun=null;
 982         GraphNode gn=(GraphNode) termination.conjtonodemap.get(conj);
 983         for(Iterator edgeit=gn.edges();(mun==null)&&edgeit.hasNext();) {
 984             GraphNode gn2=((GraphNode.Edge) edgeit.next()).getTarget();
 985             TermNode tn2=(TermNode)gn2.getOwner();
 986             if (tn2.getType()==TermNode.ABSTRACT) {
 987                 AbstractRepair ar=tn2.getAbstract();
 988                 if (((repairtype==-1)||(ar.getType()==repairtype))&&
 989                     ar.getPredicate()==dpred) {
 990                     return ar;
 991                 }
 992             }
 993         }
 994         return null;
 995     }
 996
 997
 998     /** Generates abstract (and concrete) repair for a comparison */
 999
1000     private void generatecomparisonrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
1001         Set updates=getmultupdatenodeset(conj,dpred,AbstractRepair.MODIFYRELATION);
1002         AbstractRepair ar=getabstractrepair(conj,dpred,AbstractRepair.MODIFYRELATION);
1003         MultUpdateNode munmodify=null;
1004         MultUpdateNode munadd=null;
1005         MultUpdateNode munremove=null;
1006         for(Iterator it=updates.iterator();it.hasNext();) {
1007             MultUpdateNode mun=(MultUpdateNode)it.next();
1008             if (mun.getType()==MultUpdateNode.ADD) {
1009                 munadd=mun;
1010             } else if (mun.getType()==MultUpdateNode.REMOVE) {
1011                 munremove=mun;
1012             } else if (mun.getType()==MultUpdateNode.MODIFY) {
1013                 munmodify=mun;
1014             }
1015         }
1016
1017         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
1018         RelationDescriptor rd=(RelationDescriptor)ep.getDescriptor();
1019         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1020         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1021         boolean inverted=ep.inverted();
1022         boolean negated=dpred.isNegated();
1023         OpExpr expr=(OpExpr)ep.expr;
1024         Opcode opcode=expr.getOpcode();
1025         VarDescriptor leftside=VarDescriptor.makeNew("leftside");
1026         VarDescriptor rightside=VarDescriptor.makeNew("rightside");
1027         VarDescriptor newvalue=VarDescriptor.makeNew("newvalue");
1028         boolean needremoveloop=ar.mayNeedFunctionEnforcement(state)&&ar.needsRemoves(state);
1029
1030         if (needremoveloop&&((munadd==null)||(munremove==null))) {
1031             System.out.println("Warning:  need to have individual remove operations for"+dpred.name());
1032             needremoveloop=false;
1033         }
1034         if (needremoveloop)
1035             cr.outputline("while (1) {");
1036
1037         if (!inverted) {
1038             ((RelationExpr)expr.getLeftExpr()).getExpr().generate(cr,leftside);
1039             expr.getRightExpr().generate(cr,newvalue);
1040             cr.outputline(rd.getRange().getType().getGenerateType().getSafeSymbol()+" "+rightside.getSafeSymbol()+";");
1041             cr.outputline(rd.getSafeSymbol()+"_hash->get("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1042         } else {
1043             ((RelationExpr)expr.getLeftExpr()).getExpr().generate(cr,rightside);
1044             expr.getRightExpr().generate(cr,newvalue);
1045             cr.outputline(rd.getDomain().getType().getGenerateType().getSafeSymbol()+" "+leftside.getSafeSymbol()+";");
1046             cr.outputline(rd.getSafeSymbol()+"_hashinv->get("+rightside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
1047         }
1048
1049         opcode=Opcode.translateOpcode(negated,opcode);
1050
1051         if (opcode==Opcode.GT) {
1052             cr.outputline(newvalue.getSafeSymbol()+"++;");
1053         } else if (opcode==Opcode.GE) {
1054             /* Equal */
1055         } else if (opcode==Opcode.LT) {
1056             cr.outputline(newvalue.getSafeSymbol()+"--;");
1057         } else if (opcode==Opcode.LE) {
1058             /* Equal */
1059         } else if (opcode==Opcode.EQ) {
1060             /* Equal */
1061         } else if (opcode==Opcode.NE) { /* search for FLAGNE if this is changed*/
1062             cr.outputline(newvalue.getSafeSymbol()+"++;");
1063         } else {
1064             throw new Error("Unrecognized Opcode");
1065         }
1066         /* Do abstract repairs */
1067         if (usageimage) {
1068             cr.outputline(rd.getSafeSymbol()+"_hash->remove("+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1069         }
1070         if (usageinvimage) {
1071             cr.outputline(rd.getSafeSymbol()+"_hashinv->remove("+rightside.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
1072         }
1073
1074         if (needremoveloop) {
1075             if (!inverted) {
1076                 cr.outputline("if ("+rd.getSafeSymbol()+"_hash->contains("+leftside.getSafeSymbol()+")) {");
1077             } else {
1078                 cr.outputline("if ("+rd.getSafeSymbol()+"_hashinv->contains("+rightside.getSafeSymbol()+")) {");
1079             }
1080             for(int i=0;i<state.vRules.size();i++) {
1081                 Rule r=(Rule)state.vRules.get(i);
1082                 if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1083                     for(int j=0;j<munremove.numUpdates();j++) {
1084                         UpdateNode un=munremove.getUpdate(i);
1085                         if (un.getRule()==r) {
1086                                 /* Update for rule r */
1087                             String name=(String)updatenames.get(un);
1088                             cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+");");
1089                         }
1090                     }
1091                 }
1092             }
1093             cr.outputline("continue;");
1094             cr.outputline("}");
1095         }
1096
1097         if (usageimage) {
1098             if (!inverted) {
1099                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
1100             } else {
1101                 cr.outputline(rd.getSafeSymbol()+"_hash->add("+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1102             }
1103         }
1104         if (usageinvimage) {
1105             if (!inverted) {
1106                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newvalue.getSafeSymbol()+","+leftside.getSafeSymbol()+");");
1107             } else {
1108                 cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+rightside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
1109             }
1110         }
1111         /* Do concrete repairs */
1112         if (munmodify!=null&&(!ar.mayNeedFunctionEnforcement(state))||(munadd==null)||(ar.needsRemoves(state)&&(munremove==null))) {
1113             for(int i=0;i<state.vRules.size();i++) {
1114                 Rule r=(Rule)state.vRules.get(i);
1115                 if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1116                     for(int j=0;j<munmodify.numUpdates();j++) {
1117                         UpdateNode un=munmodify.getUpdate(j);
1118                         if (un.getRule()==r) {
1119                             /* Update for rule r */
1120                             String name=(String)updatenames.get(un);
1121                             cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+","+newvalue.getSafeSymbol()+");");
1122                         }
1123                     }
1124                 }
1125             }
1126         } else {
1127             /* Start with scheduling removal */
1128             if (ar.needsRemoves(state))
1129                 for(int i=0;i<state.vRules.size();i++) {
1130                     Rule r=(Rule)state.vRules.get(i);
1131                     if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1132                         for(int j=0;j<munremove.numUpdates();j++) {
1133                             UpdateNode un=munremove.getUpdate(i);
1134                             if (un.getRule()==r) {
1135                                 /* Update for rule r */
1136                                 String name=(String)updatenames.get(un);
1137                                 cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftside.getSafeSymbol()+","+rightside.getSafeSymbol()+",(int) &"+name+");");
1138                             }
1139                         }
1140                     }
1141                 }
1142             /* Now do addition */
1143             UpdateNode un=munadd.getUpdate(0);
1144             String name=(String)updatenames.get(un);
1145             if (!inverted) {
1146                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftside.getSafeSymbol()+","+newvalue.getSafeSymbol()+");");
1147             } else {
1148                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newvalue.getSafeSymbol()+","+rightside.getSafeSymbol()+");");
1149             }
1150         }
1151         if (needremoveloop) {
1152             cr.outputline("break;");
1153             cr.outputline("}");
1154         }
1155     }
1156
1157     public void generatesizerepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr) {
1158         ExprPredicate ep=(ExprPredicate)dpred.getPredicate();
1159         OpExpr expr=(OpExpr)ep.expr;
1160         Opcode opcode=expr.getOpcode();
1161         opcode=Opcode.translateOpcode(dpred.isNegated(),opcode);
1162
1163         MultUpdateNode munremove;
1164
1165         MultUpdateNode munadd;
1166         if (ep.getDescriptor() instanceof RelationDescriptor) {
1167             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMRELATION);
1168             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTORELATION);
1169         } else {
1170             munremove=getmultupdatenode(conj,dpred,AbstractRepair.REMOVEFROMSET);
1171             munadd=getmultupdatenode(conj,dpred,AbstractRepair.ADDTOSET);
1172         }
1173         int size=ep.rightSize();
1174         VarDescriptor sizevar=VarDescriptor.makeNew("size");
1175         ((OpExpr)expr).left.generate(cr, sizevar);
1176         VarDescriptor change=VarDescriptor.makeNew("change");
1177         cr.outputline("int "+change.getSafeSymbol()+";");
1178         boolean generateadd=false;
1179         boolean generateremove=false;
1180         if (opcode==Opcode.GT) {
1181             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
1182             generateadd=true;
1183             generateremove=false;
1184         } else if (opcode==Opcode.GE) {
1185             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
1186             generateadd=true;
1187             generateremove=false;
1188         } else if (opcode==Opcode.LT) {
1189             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size-1)+"-"+sizevar.getSafeSymbol()+";");
1190             generateadd=false;
1191             generateremove=true;
1192         } else if (opcode==Opcode.LE) {
1193             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
1194             generateadd=false;
1195             generateremove=true;
1196         } else if (opcode==Opcode.EQ) {
1197             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size)+"-"+sizevar.getSafeSymbol()+";");
1198             if (size==0)
1199                 generateadd=false;
1200             else
1201                 generateadd=true;
1202             generateremove=true;
1203         } else if (opcode==Opcode.NE) {
1204             cr.outputline(change.getSafeSymbol()+"="+String.valueOf(size+1)+"-"+sizevar.getSafeSymbol()+";");
1205             generateadd=true;
1206             generateremove=false;
1207         } else {
1208             throw new Error("Unrecognized Opcode");
1209         }
1210
1211 // In some cases the analysis has determined that generating removes
1212 // is unnecessary
1213         if (generateremove&&munremove==null)
1214             generateremove=false;
1215
1216         Descriptor d=ep.getDescriptor();
1217         if (generateremove) {
1218             cr.outputline("for(;"+change.getSafeSymbol()+"<0;"+change.getSafeSymbol()+"++)");
1219             cr.startblock();
1220             /* Find element to remove */
1221             VarDescriptor leftvar=VarDescriptor.makeNew("leftvar");
1222             VarDescriptor rightvar=VarDescriptor.makeNew("rightvar");
1223             if (d instanceof RelationDescriptor) {
1224                 if (ep.inverted()) {
1225                     ((ImageSetExpr)((SizeofExpr)expr.left).setexpr).generate_leftside(cr,rightvar);
1226                     cr.outputline("int "+leftvar.getSafeSymbol()+";");
1227                     cr.outputline(d.getSafeSymbol()+"_hashinv->get((int)"+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1228                 } else {
1229                     ((ImageSetExpr)((SizeofExpr)expr.left).setexpr).generate_leftside(cr,leftvar);
1230                     cr.outputline("int "+rightvar.getSafeSymbol()+"=0;");
1231                     cr.outputline(d.getSafeSymbol()+"_hash->get((int)"+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1232                 }
1233             } else {
1234                 cr.outputline("int "+leftvar.getSafeSymbol()+"="+d.getSafeSymbol()+"_hash->firstkey();");
1235             }
1236             /* Generate abstract remove instruction */
1237             if (d instanceof RelationDescriptor) {
1238                 RelationDescriptor rd=(RelationDescriptor) d;
1239                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1240                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1241                 if (usageimage)
1242                     cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1243                 if (usageinvimage)
1244                     cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1245             } else {
1246                 cr.outputline(d.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1247             }
1248             /* Generate concrete remove instruction */
1249             for(int i=0;i<state.vRules.size();i++) {
1250                 Rule r=(Rule)state.vRules.get(i);
1251                 if (r.getInclusion().getTargetDescriptors().contains(d)) {
1252                     for(int j=0;j<munremove.numUpdates();j++) {
1253                         UpdateNode un=munremove.getUpdate(j);
1254                         if (un.getRule()==r) {
1255                                 /* Update for rule rule r */
1256                             String name=(String)updatenames.get(un);
1257                             if (d instanceof RelationDescriptor) {
1258                                 cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1259                             } else {
1260                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+d.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1261                             }
1262                         }
1263                     }
1264                 }
1265             }
1266             cr.endblock();
1267         }
1268
1269 // In some cases the analysis has determined that generating removes
1270 // is unnecessary
1271         if (generateadd&&munadd==null)
1272             generateadd=false;
1273
1274         if (generateadd) {
1275
1276             cr.outputline("for(;"+change.getSafeSymbol()+">0;"+change.getSafeSymbol()+"--)");
1277             cr.startblock();
1278             VarDescriptor newobject=VarDescriptor.makeNew("newobject");
1279             if (d instanceof RelationDescriptor) {
1280                 VarDescriptor otherside=VarDescriptor.makeNew("otherside");
1281                 ((ImageSetExpr)((SizeofExpr)expr.left).setexpr).generate_leftside(cr,otherside);
1282
1283                 RelationDescriptor rd=(RelationDescriptor)d;
1284                 if (termination.sources.relsetSource(rd,!ep.inverted())) {
1285                     /* Set Source */
1286                     SetDescriptor sd=termination.sources.relgetSourceSet(rd,!ep.inverted());
1287                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1288                     cr.outputline(sd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1289                     cr.outputline("SimpleIterator "+iterator.getSafeSymbol()+";");
1290                     cr.outputline("for("+sd.getSafeSymbol()+"_hash->iterator("+ iterator.getSafeSymbol() +");"+iterator.getSafeSymbol()+".hasNext();)");
1291                     cr.startblock();
1292                     if (ep.inverted()) {
1293                         cr.outputline("if (!"+rd.getSafeSymbol()+"_hashinv->contains("+iterator.getSafeSymbol()+".key(),"+otherside.getSafeSymbol()+"))");
1294                     } else {
1295                         cr.outputline("if (!"+rd.getSafeSymbol()+"_hash->contains("+otherside.getSafeSymbol()+","+iterator.getSafeSymbol()+".key()))");
1296                     }
1297                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1298                     cr.outputline(iterator.getSafeSymbol()+".next();");
1299                     cr.endblock();
1300                 } else if (termination.sources.relallocSource(rd,!ep.inverted())) {
1301                     /* Allocation Source*/
1302                     termination.sources.relgenerateSourceAlloc(cr,newobject,rd,!ep.inverted());
1303                 } else throw new Error("No source for adding to Relation");
1304                 if (ep.inverted()) {
1305                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1306                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1307                     if (usageimage)
1308                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1309                     if (usageinvimage)
1310                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1311
1312                     UpdateNode un=munadd.getUpdate(0);
1313                     String name=(String)updatenames.get(un);
1314                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1315                 } else {
1316                     boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1317                     boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1318                     if (usageimage)
1319                         cr.outputline(rd.getSafeSymbol()+"_hash->add("+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1320                     if (usageinvimage)
1321                         cr.outputline(rd.getSafeSymbol()+"_hashinv->add("+newobject.getSafeSymbol()+","+otherside.getSafeSymbol()+");");
1322                     UpdateNode un=munadd.getUpdate(0);
1323                     String name=(String)updatenames.get(un);
1324                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+otherside.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1325                 }
1326             } else {
1327                 SetDescriptor sd=(SetDescriptor)d;
1328                 if (termination.sources.setSource(sd)) {
1329                     /* Set Source */
1330                     /* Set Source */
1331                     SetDescriptor sourcesd=termination.sources.getSourceSet(sd);
1332                     VarDescriptor iterator=VarDescriptor.makeNew("iterator");
1333                     cr.outputline(sourcesd.getType().getGenerateType().getSafeSymbol() +" "+newobject.getSafeSymbol()+";");
1334                     cr.outputline("SimpleIterator "+iterator.getSafeSymbol()+";");
1335                     cr.outputline("for("+sourcesd.getSafeSymbol()+"_hash->iterator("+iterator.getSafeSymbol()+");"+iterator.getSafeSymbol()+".hasNext();)");
1336                     cr.startblock();
1337                     cr.outputline("if (!"+sd.getSafeSymbol()+"_hash->contains("+iterator.getSafeSymbol()+".key()))");
1338                     cr.outputline(newobject.getSafeSymbol()+"="+iterator.getSafeSymbol()+".key();");
1339                     cr.outputline(iterator.getSafeSymbol()+".next();");
1340                     cr.endblock();
1341                 } else if (termination.sources.allocSource(sd)) {
1342                     /* Allocation Source*/
1343                     termination.sources.generateSourceAlloc(cr,newobject,sd);
1344                 } else throw new Error("No source for adding to Set");
1345                 cr.outputline(sd.getSafeSymbol()+"_hash->add("+newobject.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1346                 UpdateNode un=munadd.getUpdate(0);
1347                 String name=(String)updatenames.get(un);
1348                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+newobject.getSafeSymbol()+");");
1349             }
1350             cr.endblock();
1351         }
1352     }
1353
1354     public void generateinclusionrepair(Conjunction conj, DNFPredicate dpred, CodeWriter cr){
1355         InclusionPredicate ip=(InclusionPredicate) dpred.getPredicate();
1356         boolean negated=dpred.isNegated();
1357         MultUpdateNode mun=getmultupdatenode(conj,dpred,-1);
1358         VarDescriptor leftvar=VarDescriptor.makeNew("left");
1359         ip.expr.generate(cr, leftvar);
1360
1361         if (negated) {
1362             if (ip.setexpr instanceof ImageSetExpr) {
1363                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1364                 VarDescriptor rightvar=ise.getVar();
1365                 boolean inverse=ise.inverted();
1366                 RelationDescriptor rd=ise.getRelation();
1367                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1368                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1369                 if (inverse) {
1370                     if (usageimage)
1371                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1372                     if (usageinvimage)
1373                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1374                 } else {
1375                     if (usageimage)
1376                         cr.outputline(rd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1377                     if (usageinvimage)
1378                         cr.outputline(rd.getSafeSymbol() + "_hashinv->remove((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1379                 }
1380                 for(int i=0;i<state.vRules.size();i++) {
1381                     Rule r=(Rule)state.vRules.get(i);
1382                     if (r.getInclusion().getTargetDescriptors().contains(rd)) {
1383                         for(int j=0;j<mun.numUpdates();j++) {
1384                             UpdateNode un=mun.getUpdate(j);
1385                             if (un.getRule()==r) {
1386                                 /* Update for rule rule r */
1387                                 String name=(String)updatenames.get(un);
1388                                 if (inverse) {
1389                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1390                                 } else {
1391                                     cr.outputline(repairtable.getSafeSymbol()+"->addrelation("+rd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+",(int) &"+name+");");
1392                                 }
1393                             }
1394                         }
1395                     }
1396                 }
1397             } else {
1398                 SetDescriptor sd=ip.setexpr.sd;
1399                 cr.outputline(sd.getSafeSymbol() + "_hash->remove((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1400
1401                 for(int i=0;i<state.vRules.size();i++) {
1402                     Rule r=(Rule)state.vRules.get(i);
1403                     if (r.getInclusion().getTargetDescriptors().contains(sd)) {
1404                         for(int j=0;j<mun.numUpdates();j++) {
1405                             UpdateNode un=mun.getUpdate(j);
1406                             if (un.getRule()==r) {
1407                                 /* Update for rule rule r */
1408                                 String name=(String)updatenames.get(un);
1409                                 cr.outputline(repairtable.getSafeSymbol()+"->addset("+sd.getNum()+","+r.getNum()+","+leftvar.getSafeSymbol()+",(int) &"+name+");");
1410                             }
1411                         }
1412                     }
1413                 }
1414             }
1415         } else {
1416             /* Generate update */
1417             if (ip.setexpr instanceof ImageSetExpr) {
1418                 ImageSetExpr ise=(ImageSetExpr) ip.setexpr;
1419                 VarDescriptor rightvar=ise.getVar();
1420                 boolean inverse=ise.inverted();
1421                 RelationDescriptor rd=ise.getRelation();
1422                 boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1423                 boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1424                 if (inverse) {
1425                     if (usageimage)
1426                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1427                     if (usageinvimage)
1428                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1429                 } else {
1430                     if (usageimage)
1431                         cr.outputline(rd.getSafeSymbol() + "_hash->add((int)" + leftvar.getSafeSymbol() + ", (int)" + rightvar.getSafeSymbol() + ");");
1432                     if (usageinvimage)
1433                         cr.outputline(rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1434                 }
1435                 UpdateNode un=mun.getUpdate(0);
1436                 String name=(String)updatenames.get(un);
1437                 if (inverse) {
1438                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+rightvar.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1439                 } else {
1440                     cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+","+rightvar.getSafeSymbol()+");");
1441                 }
1442             } else {
1443                 SetDescriptor sd=ip.setexpr.sd;
1444                 cr.outputline(sd.getSafeSymbol() + "_hash->add((int)" + leftvar.getSafeSymbol() + ", (int)" + leftvar.getSafeSymbol() + ");");
1445
1446                 UpdateNode un=mun.getUpdate(0);
1447                 /* Update for rule rule r */
1448                 String name=(String)updatenames.get(un);
1449                 cr.outputline(name+"(this,"+newmodel.getSafeSymbol()+","+repairtable.getSafeSymbol()+","+leftvar.getSafeSymbol()+");");
1450             }
1451         }
1452     }
1453
1454     public static Vector getrulelist(Descriptor d) {
1455         Vector dispatchrules = new Vector();
1456         Vector rules = State.currentState.vRules;
1457
1458         for (int i = 0; i < rules.size(); i++) {
1459             Rule rule = (Rule) rules.elementAt(i);
1460             Set requiredsymbols = rule.getRequiredDescriptors();
1461
1462             // #TBD#: in general this is wrong because these descriptors may contain descriptors
1463             // bound in "in?" expressions which need to be dealt with in a topologically sorted
1464             // fashion...
1465
1466             if (rule.getRequiredDescriptors().contains(d)) {
1467                 dispatchrules.addElement(rule);
1468             }
1469         }
1470         return dispatchrules;
1471     }
1472
1473     private boolean need_compensation(Rule r) {
1474         if (!Compiler.REPAIR)
1475             return false;
1476         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1477         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1478             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1479             GraphNode gn2=edge.getTarget();
1480             if (!removed.contains(gn2)) {
1481                 TermNode tn2=(TermNode)gn2.getOwner();
1482                 if (tn2.getType()==TermNode.CONSEQUENCE)
1483                     return false;
1484             }
1485         }
1486         return true;
1487     }
1488
1489     private UpdateNode find_compensation(Rule r) {
1490         GraphNode gn=(GraphNode)termination.scopefalsify.get(r);
1491         for(Iterator edgeit=gn.edges();edgeit.hasNext();) {
1492             GraphNode.Edge edge=(GraphNode.Edge)edgeit.next();
1493             GraphNode gn2=edge.getTarget();
1494             if (!removed.contains(gn2)) {
1495                 TermNode tn2=(TermNode)gn2.getOwner();
1496                 if (tn2.getType()==TermNode.UPDATE) {
1497                     MultUpdateNode mun=tn2.getUpdate();
1498                     for(int i=0;i<mun.numUpdates();i++) {
1499                         UpdateNode un=mun.getUpdate(i);
1500                         if (un.getRule()==r)
1501                             return un;
1502                     }
1503                 }
1504             }
1505         }
1506         throw new Error("No Compensation Update could be found");
1507     }
1508
1509     public void generate_dispatch(CodeWriter cr, RelationDescriptor rd, String leftvar, String rightvar) {
1510         boolean usageimage=rd.testUsage(RelationDescriptor.IMAGE);
1511         boolean usageinvimage=rd.testUsage(RelationDescriptor.INVIMAGE);
1512
1513         if (!(usageinvimage||usageimage)) /* not used at all*/
1514             return;
1515
1516         cr.outputline("// RELATION DISPATCH ");
1517         if (Compiler.REPAIR) {
1518             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1519             if (usageimage)
1520                 cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hash->contains("+leftvar+","+rightvar+"))");
1521             else
1522                 cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+rd.getJustSafeSymbol()+"_hashinv->contains("+rightvar+","+leftvar+"))");
1523
1524             cr.startblock(); {
1525                 /* Adding new item */
1526                 /* Perform safety checks */
1527                 cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1528                 cr.outputline(repairtable.getSafeSymbol()+"->containsrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+"))");
1529                 cr.startblock(); {
1530                     /* Have update to call into */
1531                     VarDescriptor mdfyptr=VarDescriptor.makeNew("modifyptr");
1532                     VarDescriptor ismdfyptr=VarDescriptor.makeNew("ismodifyptr");
1533                     cr.outputline("int "+ismdfyptr.getSafeSymbol()+"="+repairtable.getSafeSymbol()+"->ismodify("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1534
1535
1536
1537
1538                     String parttype="";
1539                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1540                         if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1541                             parttype=parttype+", int, int";
1542                         else
1543                             parttype=parttype+", int";
1544                     }
1545                     VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1546                     VarDescriptor tmpptr=VarDescriptor.makeNew("tempupdateptr");
1547
1548                     String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1549                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1550                         Quantifier q=currentrule.getQuantifier(i);
1551                         if (q instanceof SetQuantifier) {
1552                             SetQuantifier sq=(SetQuantifier) q;
1553                             methodcall+=","+sq.getVar().getSafeSymbol();
1554                         } else if (q instanceof RelationQuantifier) {
1555                             RelationQuantifier rq=(RelationQuantifier) q;
1556                             methodcall+=","+rq.x.getSafeSymbol();
1557                             methodcall+=","+rq.y.getSafeSymbol();
1558                         } else if (q instanceof ForQuantifier) {
1559                             ForQuantifier fq=(ForQuantifier) q;
1560                             methodcall+=","+fq.getVar().getSafeSymbol();
1561                         }
1562                     }
1563
1564
1565
1566                     cr.outputline("void *"+tmpptr.getSafeSymbol()+"=");
1567                     cr.outputline("(void *) "+repairtable.getSafeSymbol()+"->getrelation("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1568                     cr.outputline("if ("+ismdfyptr.getSafeSymbol()+")");
1569                     {
1570                         cr.startblock();
1571                         cr.outputline("int "+mdfyptr.getSafeSymbol()+"="+repairtable.getSafeSymbol()+"->getrelation2("+rd.getNum()+","+currentrule.getNum()+","+leftvar+","+rightvar+");");
1572                         cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+",int,int,int)="+"(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+",int,int,int)) "+tmpptr.getSafeSymbol()+";");
1573                         cr.outputline(methodcall+","+leftvar+", "+rightvar+", "+mdfyptr.getSafeSymbol() +");");
1574                         cr.endblock();
1575                     }
1576                     cr.outputline("else ");
1577                     {
1578                         cr.startblock();
1579                         cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")="+"(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+tmpptr.getSafeSymbol()+";");
1580                         cr.outputline(methodcall+");");
1581                         cr.endblock();
1582                     }
1583                     cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1584                     cr.outputline("goto rebuild;");
1585                 }
1586                 cr.endblock();
1587
1588                 /* Build standard compensation actions */
1589                 if (need_compensation(currentrule)) {
1590                     UpdateNode un=find_compensation(currentrule);
1591                     String name=(String)updatenames.get(un);
1592                     usedupdates.add(un); /* Mark as used */
1593                     String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+repairtable.getSafeSymbol();
1594                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1595                         Quantifier q=currentrule.getQuantifier(i);
1596                         if (q instanceof SetQuantifier) {
1597                             SetQuantifier sq=(SetQuantifier) q;
1598                             methodcall+=","+sq.getVar().getSafeSymbol();
1599                         } else if (q instanceof RelationQuantifier) {
1600                             RelationQuantifier rq=(RelationQuantifier) q;
1601                             methodcall+=","+rq.x.getSafeSymbol();
1602                             methodcall+=","+rq.y.getSafeSymbol();
1603                         } else if (q instanceof ForQuantifier) {
1604                             ForQuantifier fq=(ForQuantifier) q;
1605                             methodcall+=","+fq.getVar().getSafeSymbol();
1606                         }
1607                     }
1608                     methodcall+=");";
1609                     cr.outputline(methodcall);
1610                     cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1611                     cr.outputline("goto rebuild;");
1612                 }
1613             }
1614             cr.endblock();
1615         }
1616
1617         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1618         cr.outputline("int " + addeditem + "=0;");
1619
1620         String ifstring="if (!maybe&&";
1621         boolean dogenerate=false;
1622         if (rd.getDomain().getType() instanceof StructureTypeDescriptor)  {
1623             dogenerate=true;
1624             ifstring+=leftvar;
1625         }
1626
1627         if (rd.getRange().getType() instanceof StructureTypeDescriptor)  {
1628             if (dogenerate)
1629                 ifstring+="&&"+rightvar;
1630             else
1631                 ifstring+=rightvar;
1632             dogenerate=true;
1633         }
1634
1635         ifstring+=")";
1636
1637         if (rd.testUsage(RelationDescriptor.IMAGE)) {
1638             cr.outputline(ifstring);
1639             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hash->add((int)" + leftvar + ", (int)" + rightvar+ ");");
1640         }
1641
1642         if (rd.testUsage(RelationDescriptor.INVIMAGE)) {
1643             cr.outputline(ifstring);
1644             cr.outputline(addeditem + " = " + rd.getSafeSymbol() + "_hashinv->add((int)" + rightvar + ", (int)" + leftvar + ");");
1645         }
1646
1647
1648         Vector dispatchrules = getrulelist(rd);
1649
1650         Set toremove=new HashSet();
1651         for(int i=0;i<dispatchrules.size();i++) {
1652             Rule r=(Rule)dispatchrules.get(i);
1653             if (!ruleset.contains(r))
1654                 toremove.add(r);
1655         }
1656         dispatchrules.removeAll(toremove);
1657         if (dispatchrules.size() == 0) {
1658             cr.outputline("// nothing to dispatch");
1659             return;
1660         }
1661
1662         cr.outputline("if (" + addeditem + ")");
1663         cr.startblock();
1664
1665         for(int i = 0; i < dispatchrules.size(); i++) {
1666             Rule rule = (Rule) dispatchrules.elementAt(i);
1667             if (rule.getGuardExpr().getRequiredDescriptors().contains(rd)) {
1668                 /* Guard depends on this relation, so we recomput everything */
1669                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1670             } else {
1671                 for (int j=0;j<rule.numQuantifiers();j++) {
1672                     Quantifier q=rule.getQuantifier(j);
1673                     if (q.getRequiredDescriptors().contains(rd)) {
1674                         /* Generate add */
1675                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+leftvar+","+rightvar+");");
1676                     }
1677                 }
1678             }
1679         }
1680
1681         cr.endblock();
1682     }
1683
1684
1685     public void generate_dispatch(CodeWriter cr, SetDescriptor sd, String setvar) {
1686         cr.outputline("// SET DISPATCH ");
1687         if (Compiler.REPAIR) {
1688             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1689             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+sd.getJustSafeSymbol()+"_hash->contains("+setvar+"))");
1690             cr.startblock(); {
1691                 /* Adding new item */
1692                 /* See if there is an outstanding update in the repairtable */
1693                 cr.outputline("if ("+repairtable.getSafeSymbol()+"&&");
1694                 cr.outputline(repairtable.getSafeSymbol()+"->containsset("+sd.getNum()+","+currentrule.getNum()+","+setvar+"))");
1695                 cr.startblock(); {
1696                     /* Have update to call into */
1697                     VarDescriptor funptr=VarDescriptor.makeNew("updateptr");
1698                     String parttype="";
1699                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1700                         if (currentrule.getQuantifier(i) instanceof RelationQuantifier)
1701                             parttype=parttype+", int, int";
1702                         else
1703                             parttype=parttype+", int";
1704                     }
1705                     cr.outputline("void (*"+funptr.getSafeSymbol()+") ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")=");
1706                     cr.outputline("(void (*) ("+name+"_state *,"+name+"*,RepairHash *"+parttype+")) "+repairtable.getSafeSymbol()+"->getset("+sd.getNum()+","+currentrule.getNum()+","+setvar+");");
1707                     String methodcall="("+funptr.getSafeSymbol()+") (this,"+oldmodel.getSafeSymbol()+","+
1708                         repairtable.getSafeSymbol();
1709                     for(int i=0;i<currentrule.numQuantifiers();i++) {
1710                         Quantifier q=currentrule.getQuantifier(i);
1711                         if (q instanceof SetQuantifier) {
1712                             SetQuantifier sq=(SetQuantifier) q;
1713                             methodcall+=","+sq.getVar().getSafeSymbol();
1714                         } else if (q instanceof RelationQuantifier) {
1715                             RelationQuantifier rq=(RelationQuantifier) q;
1716                             methodcall+=","+rq.x.getSafeSymbol();
1717                             methodcall+=","+rq.y.getSafeSymbol();
1718                         } else if (q instanceof ForQuantifier) {
1719                             ForQuantifier fq=(ForQuantifier) q;
1720                             methodcall+=","+fq.getVar().getSafeSymbol();
1721                         }
1722                     }
1723                     methodcall+=");";
1724                     cr.outputline(methodcall);
1725                     cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1726                     cr.outputline("goto rebuild;");
1727                 }
1728                 cr.endblock();
1729                 /* Build standard compensation actions */
1730                 Vector ruleset=new Vector();
1731                 ruleset.add(currentrule);
1732                 if (state.implicitruleinv.containsKey(currentrule))
1733                     ruleset.addAll((Set)state.implicitruleinv.get(currentrule));
1734                 for(int i=0;i<ruleset.size();i++) {
1735                     Rule itrule=(Rule)ruleset.get(i);
1736
1737                     if (need_compensation(itrule)) {
1738                         UpdateNode un=find_compensation(itrule);
1739                         String name=(String)updatenames.get(un);
1740                         usedupdates.add(un); /* Mark as used */
1741
1742                         String methodcall=name+"(this,"+oldmodel.getSafeSymbol()+","+
1743                             repairtable.getSafeSymbol();
1744                         for(int j=0;j<currentrule.numQuantifiers();j++) {
1745                             Quantifier q=currentrule.getQuantifier(j);
1746                             if (q instanceof SetQuantifier) {
1747                                 SetQuantifier sq=(SetQuantifier) q;
1748                                 methodcall+=","+sq.getVar().getSafeSymbol();
1749                             } else if (q instanceof RelationQuantifier) {
1750                                 RelationQuantifier rq=(RelationQuantifier) q;
1751                                 methodcall+=","+rq.x.getSafeSymbol();
1752                                 methodcall+=","+rq.y.getSafeSymbol();
1753                             } else if (q instanceof ForQuantifier) {
1754                                 ForQuantifier fq=(ForQuantifier) q;
1755                                 methodcall+=","+fq.getVar().getSafeSymbol();
1756                             }
1757                         }
1758                         methodcall+=");";
1759                         if (currentrule!=itrule) {
1760                             SetDescriptor sdrule=((SetInclusion)itrule.getInclusion()).getSet();
1761                             cr.outputline("if ("+oldmodel.getSafeSymbol()+"&&");
1762                             cr.outputline("!"+oldmodel.getSafeSymbol() +"->"+sdrule.getJustSafeSymbol()+"_hash->contains("+setvar+"))");
1763                             cr.startblock();
1764                         }
1765                         cr.outputline(methodcall);
1766                         cr.outputline("delete "+newmodel.getSafeSymbol()+";");
1767                         cr.outputline("goto rebuild;");
1768                         cr.endblock();
1769                     }
1770                     if (currentrule==itrule)
1771                         cr.endblock();
1772                 }
1773             }
1774         }
1775
1776         String addeditem = (VarDescriptor.makeNew("addeditem")).getSafeSymbol();
1777         cr.outputline("int " + addeditem + " = 0;");
1778         if (sd.getType() instanceof StructureTypeDescriptor)  {
1779             cr.outputline("if (!maybe&&"+setvar+")");
1780         } else
1781             cr.outputline("if (!maybe)");
1782         cr.outputline(addeditem + " = " + sd.getSafeSymbol() + "_hash->add((int)" + setvar +  ", (int)" + setvar + ");");
1783         cr.startblock();
1784         Vector dispatchrules = getrulelist(sd);
1785
1786         Set toremove=new HashSet();
1787         for(int i=0;i<dispatchrules.size();i++) {
1788             Rule r=(Rule)dispatchrules.get(i);
1789             if (!ruleset.contains(r))
1790                 toremove.add(r);
1791         }
1792         dispatchrules.removeAll(toremove);
1793
1794         if (dispatchrules.size() == 0) {
1795             cr.outputline("// nothing to dispatch");
1796             cr.endblock();
1797             return;
1798         }
1799         /* Add item to worklist if new */
1800         cr.outputline("if ("+addeditem+")");
1801         cr.startblock();
1802         for(int i = 0; i < dispatchrules.size(); i++) {
1803             Rule rule = (Rule) dispatchrules.elementAt(i);
1804             if (SetDescriptor.expand(rule.getGuardExpr().getRequiredDescriptors()).contains(sd)) {
1805                 /* Guard depends on this relation, so we recompute everything */
1806                 cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+",-1,0,0);");
1807             } else {
1808                 for (int j=0;j<rule.numQuantifiers();j++) {
1809                     Quantifier q=rule.getQuantifier(j);
1810                     if (SetDescriptor.expand(q.getRequiredDescriptors()).contains(sd)) {
1811                         /* Generate add */
1812                         cr.outputline(worklist.getSafeSymbol()+"->add("+rule.getNum()+","+j+","+setvar+",0);");
1813                     }
1814                 }
1815             }
1816         }
1817         cr.endblock();
1818         cr.endblock();
1819     }
1820 }