view hgext/fastannotate/error.py @ 44181:3fb39dc2e356

rust-revlog: a trait for the revlog index

As explained in the doc comment, this is the minimum needed
for our immediate concern, which is to implement a nodemap
in Rust.

The trait will be later implemented in `hg-cpython` by the
index Python object implemented in C, thanks to exposition
of the corresponding functions as a capsule.

The `None` return cases in `node()` match what the `index_node()`
C function does.

Differential Revision: https://phab.mercurial-scm.org/D7789

# Copyright 2016-present Facebook. All Rights Reserved.
#
# error: errors used in fastannotate
#
# 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


class CorruptedFileError(Exception):
    pass


class CannotReuseError(Exception):
    """cannot reuse or update the cache incrementally"""