// Check if left-hand side operand must be type casted
Type arg1 = (Type)haveType.argsType().elementAt(0);
if (!arg1.identicalTo(tleft))
_left = new CastExpr(_left, arg1);
// Check if right-hand side operand must be type casted
Type arg2 = (Type) haveType.argsType().elementAt(1);
if (!arg2.identicalTo(tright))
_right = new CastExpr(_right, arg1);
// Return the result type for the operator we will use
return _type = haveType.resultType();
}