# Source code for spinn_utilities.index_is_value

# Copyright (c) 2018 The University of Manchester
#
# This program is free software: you can redistribute it and/or modify
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import sys

[docs]class IndexIsValue(object):
""" Tiny support class that implements object[x] by just returning\
x itself.

Used for where you want a range from 1 to *N* but you don't know *N*.

Clearly, operations that assume a finite list are *not* supported.
"""

def __getitem__(self, key):
return key

def __len__(self):
return sys.maxsize