soot.jimple.FloatConstant Java Examples

protected Value getSimpleDefaultValue(String t) {
	if (t.equals("java.lang.String"))
		return StringConstant.v("");
	if (t.equals("char"))
		return DIntConstant.v(0, CharType.v());
	if (t.equals("byte"))
		return DIntConstant.v(0, ByteType.v());
	if (t.equals("short"))
		return DIntConstant.v(0, ShortType.v());
	if (t.equals("int"))
		return IntConstant.v(0);
	if (t.equals("float"))
		return FloatConstant.v(0);
	if (t.equals("long"))
		return LongConstant.v(0);
	if (t.equals("double"))
		return DoubleConstant.v(0);
	if (t.equals("boolean"))
		return DIntConstant.v(0, BooleanType.v());

	//also for arrays etc.
	return G.v().soot_jimple_NullConstant();
}
 

public static PushInst getPushInitializer(Local l, Type t) {
  if (t instanceof IntegerType) {
    return Baf.v().newPushInst(IntConstant.v(soot.jbco.util.Rand.getInt()));
  } else if (t instanceof RefLikeType || t instanceof StmtAddressType) {
    return Baf.v().newPushInst(NullConstant.v());
  } else if (t instanceof LongType) {
    return Baf.v().newPushInst(LongConstant.v(soot.jbco.util.Rand.getLong()));
  } else if (t instanceof FloatType) {
    return Baf.v().newPushInst(
        FloatConstant.v(soot.jbco.util.Rand.getFloat()));
  } else if (t instanceof DoubleType) {
    return Baf.v().newPushInst(
        DoubleConstant.v(soot.jbco.util.Rand.getDouble()));
  }
  
  return null;
}
 

private Value toSootValue(Object val) throws AssertionError {
	Value v;
	if (val instanceof Integer)
		v = IntConstant.v((Integer) val);
	else if (val instanceof Float)
		v = FloatConstant.v((Float) val);
	else if (val instanceof Long)
		v = LongConstant.v((Long) val);
	else if (val instanceof Double)
		v = DoubleConstant.v((Double) val);
	else if (val instanceof String)
		v = StringConstant.v(val.toString());
	else if (val instanceof org.objectweb.asm.Type)
		v = ClassConstant.v(((org.objectweb.asm.Type) val).getInternalName());
	else if (val instanceof Handle)
		v = MethodHandle.v(toSootMethodRef((Handle) val), ((Handle)val).getTag());
	else
		throw new AssertionError("Unknown constant type: " + val.getClass());
	return v;
}
 

public static Object isAConstantValue(Value toCheck){
	Object value=null;
	
	if(toCheck instanceof LongConstant){
		value = new Long(((LongConstant)toCheck).value);
	}
	else if(toCheck instanceof DoubleConstant){
		value = new Double(((DoubleConstant)toCheck).value);
	}
	else if(toCheck instanceof FloatConstant){
		value = new Float(((FloatConstant)toCheck).value);
	}
	else if(toCheck instanceof IntConstant){
		int val = ((IntConstant)toCheck).value;
		value = new Integer(val);			
	}
	return value;
}
 

public static Value createConstant(Object toConvert){
	if(toConvert instanceof Long){
		return LongConstant.v( ((Long)toConvert).longValue() );
	}
	else if(toConvert instanceof Double){
		return DoubleConstant.v( ((Double)toConvert).doubleValue());
	}
	else if(toConvert instanceof Boolean){
		boolean val = ((Boolean)toConvert).booleanValue();
		if(val)
			return DIntConstant.v(1,BooleanType.v());
		else
			return DIntConstant.v(0,BooleanType.v());
	}	
	else if(toConvert instanceof Float){
		return FloatConstant.v( ((Float)toConvert).floatValue());
	}
	else if(toConvert instanceof Integer){
		return IntConstant.v( ((Integer)toConvert).intValue());
	}
	else
		return null;
}
 

public static Value toDefaultSootTypeValue(Type sootType)
{
	String type = sootType.toString();
	
	if ("boolean".equals(type))
	{
		IntConstant.v(0);
	}
	else if ("byte".equals(type))
	{
		return IntConstant.v(0);
	}
	else if ("char".equals(type))
	{
		return IntConstant.v(0);
	}
	else if ("short".equals(type))
	{
		return IntConstant.v(0);
	}
	else if ("int".equals(type))
	{
		return IntConstant.v(0);
	}
	else if ("long".equals(type))
	{
		return LongConstant.v(0);
	}
	else if ("float".equals(type))
	{
		return FloatConstant.v(0);
	}
	else if ("double".equals(type))
	{
		return DoubleConstant.v(0);
	}

	return NullConstant.v();
}
 

@Test
public void testJBinOpExp() {
    Value v = Jimple.v().newAddExpr(IntConstant.v(456), 
            Jimple.v().newLocal("local", IntType.v()));
    assertTrue(ExceptionTestUtility.sameMembers(utility.VM_ERRORS, Collections.EMPTY_SET,
                unitAnalysis.mightThrow(v)));
    assertEquals(utility.VM_ERRORS_PLUS_SUPERTYPES,
            utility.catchableSubset(unitAnalysis.mightThrow(v)));

    v = Jimple.v().newOrExpr(Jimple.v().newLocal("local", LongType.v()),
            LongConstant.v(33));
    assertTrue(ExceptionTestUtility.sameMembers(utility.VM_ERRORS, Collections.EMPTY_SET,
                unitAnalysis.mightThrow(v)));
    assertEquals(utility.VM_ERRORS_PLUS_SUPERTYPES,
            utility.catchableSubset(unitAnalysis.mightThrow(v)));

    v = Jimple.v().newLeExpr(Jimple.v().newLocal("local", FloatType.v()),
            FloatConstant.v(33.42f));
    assertTrue(ExceptionTestUtility.sameMembers(utility.VM_ERRORS, Collections.EMPTY_SET,
                unitAnalysis.mightThrow(v)));
    assertEquals(utility.VM_ERRORS_PLUS_SUPERTYPES,
            utility.catchableSubset(unitAnalysis.mightThrow(v)));

    v = Jimple.v().newEqExpr(DoubleConstant.v(-33.45e-3),
            Jimple.v().newLocal("local", DoubleType.v()));
    assertTrue(ExceptionTestUtility.sameMembers(utility.VM_ERRORS, Collections.EMPTY_SET,
                unitAnalysis.mightThrow(v)));
    assertEquals(utility.VM_ERRORS_PLUS_SUPERTYPES,
            utility.catchableSubset(unitAnalysis.mightThrow(v)));
}
 

private boolean checkConstantValue(ConstantValueTag t, Constant rightOp) {
	if (t == null || rightOp == null)
		return true;
	
	if (t instanceof DoubleConstantValueTag) {
		if (!(rightOp instanceof DoubleConstant))
			return false;
		return ((DoubleConstantValueTag) t).getDoubleValue() == ((DoubleConstant) rightOp).value;
	}
	else if (t instanceof FloatConstantValueTag) {
		if (!(rightOp instanceof FloatConstant))
			return false;
		return ((FloatConstantValueTag) t).getFloatValue() == ((FloatConstant) rightOp).value;
	}
	else if (t instanceof IntegerConstantValueTag) {
		if (!(rightOp instanceof IntConstant))
			return false;
		return ((IntegerConstantValueTag) t).getIntValue() == ((IntConstant) rightOp).value;
	}
	else if (t instanceof LongConstantValueTag) {
		if (!(rightOp instanceof LongConstant))
			return false;
		return ((LongConstantValueTag) t).getLongValue() == ((LongConstant) rightOp).value;
	}
	else if (t instanceof StringConstantValueTag) {
		if (!(rightOp instanceof StringConstant))
			return false;
		return ((StringConstantValueTag) t).getStringValue().equals(((StringConstant) rightOp).value);
	}
	else
		// We don't know the type, so we assume it's alright
		return true;
}
 

private ConstantValueTag createConstantTagFromValue(Constant rightOp) {
	if (rightOp instanceof DoubleConstant)
		return new DoubleConstantValueTag(((DoubleConstant) rightOp).value);
	else if (rightOp instanceof FloatConstant)
		return new FloatConstantValueTag(((FloatConstant) rightOp).value);
	else if (rightOp instanceof IntConstant)
		return new IntegerConstantValueTag(((IntConstant) rightOp).value);
	else if (rightOp instanceof LongConstant)
		return new LongConstantValueTag(((LongConstant) rightOp).value);
	else if (rightOp instanceof StringConstant)
		return new StringConstantValueTag(((StringConstant) rightOp).value);
	else
		return null;
}
 

private void convertConstInsn(InsnNode insn) {
	int op = insn.getOpcode();
	StackFrame frame = getFrame(insn);
	Operand[] out = frame.out();
	Operand opr;
	if (out == null) {
		Value v;
		if (op == ACONST_NULL)
			v = NullConstant.v();
		else if (op >= ICONST_M1 && op <= ICONST_5)
			v = IntConstant.v(op - ICONST_0);
		else if (op == LCONST_0 || op == LCONST_1)
			v = LongConstant.v(op - LCONST_0);
		else if (op >= FCONST_0 && op <= FCONST_2)
			v = FloatConstant.v(op - FCONST_0);
		else if (op == DCONST_0 || op == DCONST_1)
			v = DoubleConstant.v(op - DCONST_0);
		else
			throw new AssertionError("Unknown constant opcode: " + op);
		opr = new Operand(insn, v);
		frame.out(opr);
	} else {
		opr = out[0];
	}
	if (op == LCONST_0 || op == LCONST_1 ||
			op == DCONST_0 || op == DCONST_1) {
		pushDual(opr);
	} else {
		push(opr);
	}
}
 

protected String floatToString(FloatConstant v) {
	String s = v.toString();
	
	if(s.equals("#InfinityF"))
	    s="+FloatInfinity";
	else if(s.equals("#-InfinityF"))
	    s="-FloatInfinity";
	else if(s.equals("#NaNF"))
	    s="+FloatNaN";
	return s;
}
 

public NumericConstant getResult(BinopExpr binop){
	if(DEBUG)
		System.out.println("Binop expr"+binop);
	Value leftOp = binop.getOp1();
	Value rightOp = binop.getOp2();
	
	int op = 0;
	if(binop instanceof AddExpr){
		op=1;
	}
	else if(binop instanceof SubExpr || 
			binop instanceof DCmpExpr || binop instanceof DCmpgExpr
			|| binop instanceof DCmplExpr){
		op=2;
	}
	else if(binop instanceof MulExpr){
		op=3;
	}

	if(op == 0){
		if(DEBUG){
			System.out.println("not add sub or mult");
			System.out.println(binop.getClass().getName());
		}			
		return null;
	}
	NumericConstant constant = null;
	if(leftOp instanceof LongConstant  && rightOp instanceof LongConstant){
		if(DEBUG)
			System.out.println("long constants!!");
		if(op ==1)
			constant = ((LongConstant)leftOp).add((LongConstant)rightOp);
		else if(op ==2)
			constant = ((LongConstant)leftOp).subtract((LongConstant)rightOp);
		else if (op ==3)
			constant = ((LongConstant)leftOp).multiply((LongConstant)rightOp);
	}
	else if(leftOp instanceof DoubleConstant  && rightOp instanceof DoubleConstant){
		if(DEBUG)
			System.out.println("double constants!!");
		if(op ==1)
			constant = ((DoubleConstant)leftOp).add((DoubleConstant)rightOp);
		else if(op ==2)
			constant = ((DoubleConstant)leftOp).subtract((DoubleConstant)rightOp);
		else if (op ==3)
			constant = ((DoubleConstant)leftOp).multiply((DoubleConstant)rightOp);

	}
	else if(leftOp instanceof FloatConstant  && rightOp instanceof FloatConstant){
		if(DEBUG)
			System.out.println("Float constants!!");
		if(op ==1)
			constant = ((FloatConstant)leftOp).add((FloatConstant)rightOp);
		else if(op ==2)
			constant = ((FloatConstant)leftOp).subtract((FloatConstant)rightOp);
		else if (op ==3)
			constant = ((FloatConstant)leftOp).multiply((FloatConstant)rightOp);
	}
	else if(leftOp instanceof IntConstant  && rightOp instanceof IntConstant){
		if(DEBUG)
			System.out.println("Integer constants!!");
		if(op ==1)
			constant = ((IntConstant)leftOp).add((IntConstant)rightOp);
		else if(op ==2)
			constant = ((IntConstant)leftOp).subtract((IntConstant)rightOp);
		else if (op ==3)
			constant = ((IntConstant)leftOp).multiply((IntConstant)rightOp);
	}
	
	return constant;
}
 

public Value createJimpleConstantValue(cp_info[] constant_pool) {
	return FloatConstant.v(convert());
}
 

public FloatConstant toFloatConstant() {
    return  FloatConstant.v(Float.intBitsToFloat((int) value));
}
 

public void caseFloatConstant(FloatConstant f) {
	int intBits = Float.floatToIntBits(f.value);
       stmtV.addInsn(buildConstInsn(intBits), origStmt);
}
 

public void caseFloatConstant(FloatConstant c) {
}
 

private Register asConstant(Value v, ConstantVisitor constantV) {
	Constant c = (Constant) v;
	
	Register constantRegister = null;
	
	List<Register> rArray = null;
	AtomicInteger iI = null;
	if (c instanceof ClassConstant) {
	    rArray = classConstantReg;
	    iI = classI;
	} else if (c instanceof NullConstant) {
           rArray = nullConstantReg;
           iI = nullI;
       } else if (c instanceof FloatConstant) {
           rArray = floatConstantReg;
           iI = floatI;
       } else if (c instanceof IntConstant) {
           rArray = intConstantReg;
           iI = intI;
       } else if (c instanceof LongConstant) {
           rArray = longConstantReg;
           iI = longI;
       } else if (c instanceof DoubleConstant) {
           rArray = doubleConstantReg;
           iI = doubleI;
       } else if (c instanceof StringConstant) {
           rArray = stringConstantReg;
           iI = stringI;
       } else {
           throw new RuntimeException("Error. Unknown constant type: '"+ c.getType() +"'");
       }
	
	if (rArray.size() == 0 || iI.intValue() >= rArray.size()) {
	    rArray.add(new Register(c.getType(), nextRegNum));
	    nextRegNum += SootToDexUtils.getDexWords(c.getType());
	}
	
	constantRegister = rArray.get(iI.intValue()).clone();
	iI.set(iI.intValue() + 1);

	// "load" constant into the register...
	constantV.setDestination(constantRegister);
	c.apply(constantV);
	// ...but return an independent register object
	return constantRegister.clone();
}
 

public void caseIfStmt(IfStmt stmt) {
	if (uses) {
		ConditionExpr cond = (ConditionExpr) stmt.getCondition();

		BinopExpr expr = cond;
		Value lv = expr.getOp1();
		Value rv = expr.getOp2();

		TypeVariable lop;
		TypeVariable rop;

		// ******** LEFT ********
		if (lv instanceof Local) {
			lop = resolver.typeVariable((Local) lv);
		} else if (lv instanceof DoubleConstant) {
			lop = resolver.typeVariable(DoubleType.v());
		} else if (lv instanceof FloatConstant) {
			lop = resolver.typeVariable(FloatType.v());
		} else if (lv instanceof IntConstant) {
			lop = resolver.typeVariable(IntType.v());
		} else if (lv instanceof LongConstant) {
			lop = resolver.typeVariable(LongType.v());
		} else if (lv instanceof NullConstant) {
			lop = resolver.typeVariable(NullType.v());
		} else if (lv instanceof StringConstant) {
			lop = resolver.typeVariable(RefType.v("java.lang.String"));
		} else if (lv instanceof ClassConstant) {
			lop = resolver.typeVariable(RefType.v("java.lang.Class"));
		} else {
			throw new RuntimeException("Unhandled binary expression left operand type: " + lv.getClass());
		}

		// ******** RIGHT ********
		if (rv instanceof Local) {
			rop = resolver.typeVariable((Local) rv);
		} else if (rv instanceof DoubleConstant) {
			rop = resolver.typeVariable(DoubleType.v());
		} else if (rv instanceof FloatConstant) {
			rop = resolver.typeVariable(FloatType.v());
		} else if (rv instanceof IntConstant) {
			rop = resolver.typeVariable(IntType.v());
		} else if (rv instanceof LongConstant) {
			rop = resolver.typeVariable(LongType.v());
		} else if (rv instanceof NullConstant) {
			rop = resolver.typeVariable(NullType.v());
		} else if (rv instanceof StringConstant) {
			rop = resolver.typeVariable(RefType.v("java.lang.String"));
		} else if (rv instanceof ClassConstant) {
			rop = resolver.typeVariable(RefType.v("java.lang.Class"));
		} else {
			throw new RuntimeException("Unhandled binary expression right operand type: " + rv.getClass());
		}

		TypeVariable common = resolver.typeVariable();
		rop.addParent(common);
		lop.addParent(common);
	}
}
 

@Before
public void setUp() {
    unitAnalysis = new UnitThrowAnalysis();
    immaculateAnalysis = new ImmaculateInvokeUnitThrowAnalysis();

    // Ensure the Exception classes we need are represented in Soot:
    utility = new ExceptionTestUtility(System.getProperty("sun.boot.class.path"));

    List voidList = new ArrayList();
    SootClass bogusClass = new SootClass("BogusClass");
    bogusClass.addMethod(new SootMethod("floatFunction",voidList,FloatType.v()));
    bogusClass.addMethod(new SootMethod("floatFunction",Arrays.asList(new Type[] {
        FloatType.v(), FloatType.v(),}),
                FloatType.v(),Modifier.STATIC));
    SootFieldRef nanFieldRef = Scene.v().makeFieldRef(Scene.v().getSootClass("java.lang.Float"),
            "NaN", FloatType.v(),
            true);
    floatStaticFieldRef = Grimp.v().newStaticFieldRef(nanFieldRef);
    floatLocal = Grimp.v().newLocal("local", FloatType.v());
    floatConstant = FloatConstant.v(33.42f);
    floatConstantLocal = Grimp.v().newLocal("local", RefType.v("soot.jimple.FloatConstant"));
    SootFieldRef valueFieldRef 
        = Scene.v().makeFieldRef(bogusClass, "value", FloatType.v(), false);
    floatInstanceFieldRef = Grimp.v().newInstanceFieldRef(floatConstantLocal,
            valueFieldRef);
    floatArrayRef = Grimp.v().newArrayRef(
            Jimple.v().newLocal("local1", FloatType.v()), 
            IntConstant.v(0));
    floatVirtualInvoke = Grimp.v().newVirtualInvokeExpr(
            floatConstantLocal, 
            Scene.v().makeMethodRef(bogusClass, "floatFunction", voidList, 
                FloatType.v(), false), 
            voidList);
    floatStaticInvoke = Grimp.v().newStaticInvokeExpr(
            Scene.v().makeMethodRef(bogusClass, "floatFunction", 
                Arrays.asList(new Type[] {
                    FloatType.v(), FloatType.v(),}),
                FloatType.v(), true),
            Arrays.asList(new Value[] {
                floatStaticFieldRef, floatArrayRef,})
            );
}
 

public void outAFloatConstant(AFloatConstant node)
   {
String s = (String) mProductions.removeLast();

       boolean isDouble = true;
       float value = 0;
       double dvalue = 0;

       if(s.endsWith("f") || s.endsWith("F")) 
         isDouble = false;
         
       if(s.charAt(0) == '#') {
         if(s.charAt(1) == '-') {
           if(isDouble)
             dvalue = Double.NEGATIVE_INFINITY;
           else
             value = Float.NEGATIVE_INFINITY;
         }
         else if(s.charAt(1) == 'I') {
           if(isDouble)
             dvalue = Double.POSITIVE_INFINITY;
           else
             value = Float.POSITIVE_INFINITY;
         }
         else {
           if(isDouble)
             dvalue = Double.NaN;
           else
             value = Float.NaN;
         }
       }
       else {
         StringBuffer buf = new StringBuffer();          
         if(node.getMinus() != null)
           buf.append('-');
         buf.append(s);
         s = buf.toString();
       
         if(isDouble)
           dvalue = Double.parseDouble(s);
         else
           value =Float.parseFloat(s);        
       }

       Object res;
       if(isDouble)
         res = DoubleConstant.v(dvalue);
       else
         res = FloatConstant.v(value);

mProductions.addLast(res);
   }
 

public void caseFloatConstant(FloatConstant v) {
	printConstant(v,Float.toString(v.value));
}