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revlogutils: move the NodeMap class in a dedicated nodemap module We will introduce more nodemap related code, so it make sense to move the existing code in that module first. Differential Revision: https://phab.mercurial-scm.org/D7809
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 07 Jan 2020 12:26:37 +0100
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children c577bb4a04d4
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# nodemap.py - nodemap related code and utilities
#
# Copyright 2019 Pierre-Yves David <pierre-yves.david@octobus.net>
# Copyright 2019 George Racinet <georges.racinet@octobus.net>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import
from .. import error


class NodeMap(dict):
    def __missing__(self, x):
        raise error.RevlogError(b'unknown node: %s' % x)