Пример #1
0
  /** Prints the given <code>JimpleBody</code> to the specified <code>PrintWriter</code>. */
  private void printLocalsInBody(Body body, UnitPrinter up) {
    // Print out local variables
    {
      Map typeToLocals = new DeterministicHashMap(body.getLocalCount() * 2 + 1, 0.7f);

      // Collect locals
      {
        Iterator localIt = body.getLocals().iterator();

        while (localIt.hasNext()) {
          Local local = (Local) localIt.next();

          List localList;

          Type t = local.getType();

          if (typeToLocals.containsKey(t)) localList = (List) typeToLocals.get(t);
          else {
            localList = new ArrayList();
            typeToLocals.put(t, localList);
          }

          localList.add(local);
        }
      }

      // Print locals
      {
        Iterator typeIt = typeToLocals.keySet().iterator();

        while (typeIt.hasNext()) {
          Type type = (Type) typeIt.next();

          List localList = (List) typeToLocals.get(type);
          Object[] locals = localList.toArray();
          up.type(type);
          up.literal(" ");

          for (int k = 0; k < locals.length; k++) {
            if (k != 0) up.literal(", ");

            up.local((Local) locals[k]);
          }

          up.literal(";");
          up.newline();
        }
      }

      if (!typeToLocals.isEmpty()) {
        up.newline();
      }
    }
  }
  public FaintVariableAnalysis(Body body) {

    Chain<Local> locals = body.getLocals();

    allVariables = new CollectionFlowUniverse<Local>(locals);

    universalSet = new ArrayPackedSet(allVariables);

    for (Local l : locals) universalSet.add(l);

    useSetMap = new HashMap<Unit, BoundedFlowSet>();
    defSetMap = new HashMap<Unit, BoundedFlowSet>();

    UnitGraph graph = new BriefUnitGraph(body);
    for (Unit u : graph) {

      BoundedFlowSet defSet = new ArrayPackedSet(allVariables);
      BoundedFlowSet useSet = new ArrayPackedSet(allVariables);

      for (ValueBox v : u.getDefBoxes()) {
        // Only do this for locals. We're not going to even try to handle anything
        // other than locals.
        if (v.getValue() instanceof Local) {
          defSet.add(v.getValue());
        }
      }
      for (ValueBox v : u.getUseBoxes()) {
        // Only do this for locals. We're not going to even try to handle anything
        // other than locals.
        if (v.getValue() instanceof Local) {
          useSet.add(v.getValue());
        }
      }

      defSetMap.put(u, defSet);
      useSetMap.put(u, useSet);
    }
  }