sphinx/sphinx/deprecation.py
2019-04-05 01:09:38 +09:00

92 lines
2.6 KiB
Python

"""
sphinx.deprecation
~~~~~~~~~~~~~~~~~~
Sphinx deprecation classes and utilities.
:copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import sys
import warnings
from importlib import import_module
if False:
# For type annotation
from typing import Any, Dict, Type # NOQA
class RemovedInSphinx30Warning(DeprecationWarning):
pass
class RemovedInSphinx40Warning(PendingDeprecationWarning):
pass
RemovedInNextVersionWarning = RemovedInSphinx30Warning
def deprecated_alias(modname, objects, warning):
# type: (str, Dict, Type[Warning]) -> None
module = sys.modules.get(modname)
if module is None:
module = import_module(modname)
sys.modules[modname] = _ModuleWrapper(module, modname, objects, warning) # type: ignore
class _ModuleWrapper:
def __init__(self, module, modname, objects, warning):
# type: (Any, str, Dict, Type[Warning]) -> None
self._module = module
self._modname = modname
self._objects = objects
self._warning = warning
def __getattr__(self, name):
# type: (str) -> Any
if name in self._objects:
warnings.warn("%s.%s is now deprecated. Please refer CHANGES to grasp "
"the changes of Sphinx API." % (self._modname, name),
self._warning, stacklevel=3)
return self._objects[name]
return getattr(self._module, name)
class DeprecatedDict(dict):
"""A deprecated dict which warns on each access."""
def __init__(self, data, message, warning):
# type: (Dict, str, Type[Warning]) -> None
self.message = message
self.warning = warning
super().__init__(data)
def __setitem__(self, key, value):
# type: (str, Any) -> None
warnings.warn(self.message, self.warning, stacklevel=2)
super().__setitem__(key, value)
def setdefault(self, key, default=None):
# type: (str, Any) -> None
warnings.warn(self.message, self.warning, stacklevel=2)
return super().setdefault(key, default)
def __getitem__(self, key):
# type: (str) -> None
warnings.warn(self.message, self.warning, stacklevel=2)
return super().__getitem__(key)
def get(self, key, default=None):
# type: (str, Any) -> None
warnings.warn(self.message, self.warning, stacklevel=2)
return super().get(key, default)
def update(self, other=None): # type: ignore
# type: (Dict) -> None
warnings.warn(self.message, self.warning, stacklevel=2)
super().update(other)