Checking in code to perform safety checks on repair dependency graph.
[repair.git] / Repair / RepairCompiler / MCC / IR / AbstractInterferes.java
index 4217361..5b24327 100755 (executable)
@@ -1,6 +1,55 @@
 package MCC.IR;
 
 class AbstractInterferes {
+    static public boolean interferes(AbstractRepair ar, Rule r, boolean satisfy) {
+       boolean mayadd=false;
+       boolean mayremove=false;
+       switch (ar.getType()) {
+       case AbstractRepair.ADDTOSET:
+       case AbstractRepair.ADDTORELATION:
+           if (interferesquantifier(ar.getDescriptor(), true, r, satisfy))
+               return true;
+           mayadd=true;
+           break;
+       case AbstractRepair.REMOVEFROMSET:
+       case AbstractRepair.REMOVEFROMRELATION:
+           if (interferesquantifier(ar.getDescriptor(), false, r, satisfy))
+               return true;
+           mayremove=true;
+           break;
+       case AbstractRepair.MODIFYRELATION:
+           if (interferesquantifier(ar.getDescriptor(), true, r, satisfy))
+               return true;
+           if (interferesquantifier(ar.getDescriptor(), false, r, satisfy))
+               return true;
+           mayadd=true;
+           mayremove=true;
+       break;
+       default:
+           throw new Error("Unrecognized Abstract Repair");
+       }
+       DNFRule drule=null;
+       if (satisfy)
+           drule=r.getDNFGuardExpr();
+       else
+           drule=r.getDNFNegGuardExpr();
+       
+       for(int i=0;i<drule.size();i++) {
+           RuleConjunction rconj=drule.get(i);
+           for(int j=0;j<rconj.size();j++) {
+               DNFExpr dexpr=rconj.get(j);
+               Expr expr=dexpr.getExpr();
+               if (expr.usesDescriptor(ar.getDescriptor())) {
+                   /* Need to check */
+                   if ((mayadd&&!dexpr.getNegation())||(mayremove&&dexpr.getNegation()))
+                       return true;
+               }
+           }
+       }
+       return false;
+    }
+
+
     static public boolean interferes(AbstractRepair ar, DNFPredicate dp) {
        if ((ar.getDescriptor()!=dp.getPredicate().getDescriptor()) &&
            ((ar.getDescriptor() instanceof SetDescriptor)||