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##############################################################################
# Copyright (c) 2020 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
##############################################################################
"""
Interface definitions for builtin types.
After this module is imported, the standard library types will declare
that they implement the appropriate interface.
.. versionadded:: 5.0.0
"""
from __future__ import absolute_import
from zope.interface import classImplements
from zope.interface.common import collections
from zope.interface.common import numbers
from zope.interface.common import io
__all__ = [
'IList',
'ITuple',
'ITextString',
'IByteString',
'INativeString',
'IBool',
'IDict',
'IFile',
]
# pylint:disable=no-self-argument
class IList(collections.IMutableSequence):
"""
Interface for :class:`list`
"""
extra_classes = (list,)
def sort(key=None, reverse=False):
"""
Sort the list in place and return None.
*key* and *reverse* must be passed by name only.
"""
class ITuple(collections.ISequence):
"""
Interface for :class:`tuple`
"""
extra_classes = (tuple,)
class ITextString(collections.ISequence):
"""
Interface for text (unicode) strings.
On Python 2, this is :class:`unicode`. On Python 3,
this is :class:`str`
"""
extra_classes = (type(u'unicode'),)
class IByteString(collections.IByteString):
"""
Interface for immutable byte strings.
On all Python versions this is :class:`bytes`.
Unlike :class:`zope.interface.common.collections.IByteString`
(the parent of this interface) this does *not* include
:class:`bytearray`.
"""
extra_classes = (bytes,)
class INativeString(IByteString if str is bytes else ITextString):
"""
Interface for native strings.
On all Python versions, this is :class:`str`. On Python 2,
this extends :class:`IByteString`, while on Python 3 it extends
:class:`ITextString`.
"""
# We're not extending ABCInterface so extra_classes won't work
classImplements(str, INativeString)
class IBool(numbers.IIntegral):
"""
Interface for :class:`bool`
"""
extra_classes = (bool,)
class IDict(collections.IMutableMapping):
"""
Interface for :class:`dict`
"""
extra_classes = (dict,)
class IFile(io.IIOBase):
"""
Interface for :class:`file`.
It is recommended to use the interfaces from :mod:`zope.interface.common.io`
instead of this interface.
On Python 3, there is no single implementation of this interface;
depending on the arguments, the :func:`open` builtin can return
many different classes that implement different interfaces from
:mod:`zope.interface.common.io`.
"""
try:
extra_classes = (file,)
except NameError:
extra_classes = ()
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