comparison mercurial/repoview.py @ 35248:c752fbe228fb

repoview: extract a factory function of proxy class

This makes sure that dynamically-created class objects are isolated from
local binding of repo instances. The type cache is moved to module level
as it isn't tied to each instance.

35247:9ce4e01f58ee

# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

import copy

from .node import nullrev
from . import (
    obsolete,
    phases,

    def __setattr__(self, attr, value):
        return setattr(self._unfilteredrepo, attr, value)

    def __delattr__(self, attr):
        return delattr(self._unfilteredrepo, attr)

35248:c752fbe228fb

# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

import copy
import weakref

from .node import nullrev
from . import (
    obsolete,
    phases,

    def __setattr__(self, attr, value):
        return setattr(self._unfilteredrepo, attr, value)

    def __delattr__(self, attr):
        return delattr(self._unfilteredrepo, attr)

# Python <3.4 easily leaks types via __mro__. See
# https://bugs.python.org/issue17950. We cache dynamically created types
# so they won't be leaked on every invocation of repo.filtered().
_filteredrepotypes = weakref.WeakKeyDictionary()

def newtype(base):
    """Create a new type with the repoview mixin and the given base class"""
    if base not in _filteredrepotypes:
        class filteredrepo(repoview, base):
            pass
        _filteredrepotypes[base] = filteredrepo
    return _filteredrepotypes[base]