def cli2py(space, b_obj):
    # TODO: support other types and find the most efficient way to
    # select the correct case
    if b_obj is None:
        return space.w_None

    w_obj = unbox(b_obj, W_Root)
    if w_obj is not None:
        return w_obj # it's already a wrapped object!
    
    b_type = b_obj.GetType()
    if b_type == typeof(System.Int32):
        intval = unbox(b_obj, ootype.Signed)
        return space.wrap(intval)
    elif b_type == typeof(System.Double):
        floatval = unbox(b_obj, ootype.Float)
        return space.wrap(floatval)
    elif b_type == typeof(System.Boolean):
        boolval = unbox(b_obj, ootype.Bool)
        return space.wrap(boolval)
    elif b_type == typeof(System.String):
        strval = unbox(b_obj, ootype.String)
        return space.wrap(strval)
    else:
        namespace, classname = split_fullname(b_type.ToString())
        assemblyname = b_type.get_Assembly().get_FullName()
        w_cls = load_cli_class(space, assemblyname, namespace, classname)
        cliobj = W_CliObject(space, b_obj)
        return wrapper_from_cliobj(space, w_cls, cliobj)

def cli2py(space, b_obj):
    # TODO: support other types and find the most efficient way to
    # select the correct case
    if b_obj is None:
        return space.w_None

    w_obj = unbox(b_obj, W_Root)
    if w_obj is not None:
        return w_obj # it's already a wrapped object!
    
    b_type = b_obj.GetType()
    if b_type == typeof(System.Int32):
        intval = unbox(b_obj, ootype.Signed)
        return space.wrap(intval)
    elif b_type == typeof(System.Double):
        floatval = unbox(b_obj, ootype.Float)
        return space.wrap(floatval)
    elif b_type == typeof(System.Boolean):
        boolval = unbox(b_obj, ootype.Bool)
        return space.wrap(boolval)
    elif b_type == typeof(System.String):
        strval = unbox(b_obj, ootype.String)
        return space.wrap(strval)
    else:
        msg = "Can't convert object %s to Python" % str(b_obj.ToString())
        raise OperationError(space.w_TypeError, space.wrap(msg))

 def fn():
     const.xx = 42
     obj = fieldinfo.GetValue(None)
     # get the 'xx' field by using reflection
     t = obj.GetType()
     x_info = t.GetField('xx')
     x_value = x_info.GetValue(obj)
     return unbox(x_value, ootype.Signed)

 def revealconst(self, T):
     assert isinstance(T, ootype.OOType)
     return unbox(self.obj, T)