mercurial/interfaces/util.py
author Pierre-Yves David <pierre-yves.david@octobus.net>
Thu, 02 Mar 2023 04:11:29 +0100
changeset 50386 db6d210e9618
parent 48946 642e31cb55f0
child 51863 f4733654f144
permissions -rw-r--r--
dirstate: remove _actual_file_name methode This is dead-code
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
42814
2c4f656c8e9f interfaceutil: move to interfaces/
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 37810
diff changeset
     1
# util.py - Utilities for declaring interfaces.
37810
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     2
#
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     3
# Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com>
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     4
#
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     5
# This software may be used and distributed according to the terms of the
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     6
# GNU General Public License version 2 or any later version.
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     7
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     8
# zope.interface imposes a run-time cost due to module import overhead and
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
     9
# bookkeeping for declaring interfaces. So, we use stubs for various
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    10
# zope.interface primitives unless instructed otherwise.
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    11
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    12
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42814
diff changeset
    13
from .. import encoding
37810
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    14
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
    15
if encoding.environ.get(b'HGREALINTERFACES'):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42814
diff changeset
    16
    from ..thirdparty.zope import interface as zi
37810
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    17
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    18
    Attribute = zi.Attribute
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    19
    Interface = zi.Interface
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    20
    implementer = zi.implementer
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    21
else:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42814
diff changeset
    22
48946
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48875
diff changeset
    23
    class Attribute:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
    24
        def __init__(self, __name__, __doc__=b''):
37810
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    25
            pass
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    26
48946
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48875
diff changeset
    27
    class Interface:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42814
diff changeset
    28
        def __init__(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42814
diff changeset
    29
            self, name, bases=(), attrs=None, __doc__=None, __module__=None
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42814
diff changeset
    30
        ):
37810
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    31
            pass
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    32
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    33
    def implementer(*ifaces):
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    34
        def wrapper(cls):
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    35
            return cls
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    36
856f381ad74b interfaceutil: module to stub out zope.interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
    37
        return wrapper