mercurial-scm/hg: mercurial/thirdparty/zope/interface/adapter.py annotate

annotate mercurial/thirdparty/zope/interface/adapter.py @ 37178:68ee61822182

thirdparty: port zope.interface to relative imports By using relative imports, we're guaranteed to get modules vendored with Mercurial rather than other random modules that might be in sys.path. My editor strips trailing whitespace on save. So some minor source code cleanup was also performed as part of this commit. # no-check-commit because some modified lines have double newlines Differential Revision: https://phab.mercurial-scm.org/D2930

author	Gregory Szorc <gregory.szorc@gmail.com>
date	Wed, 21 Mar 2018 19:52:30 -0700
parents	943d77fc07a3
children

rev	line source
37176 943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1 ##############################################################################
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2 #
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3 # Copyright (c) 2004 Zope Foundation and Contributors.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	4 # All Rights Reserved.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	5 #
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	6 # This software is subject to the provisions of the Zope Public License,
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	7 # Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	11 # FOR A PARTICULAR PURPOSE.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	12 #
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	13 ##############################################################################
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	14 """Adapter management
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	15 """
37178 68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	16 from __future__ import absolute_import
68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	17
37176 943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	18 import weakref
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	19
37178 68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	20 from . import implementer
68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	21 from . import providedBy
68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	22 from . import Interface
68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	23 from . import ro
68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	24 from .interfaces import IAdapterRegistry
37176 943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	25
37178 68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	26 from ._compat import _normalize_name
68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	27 from ._compat import STRING_TYPES
37176 943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	28
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	29 _BLANK = u''
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	30
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	31 class BaseAdapterRegistry(object):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	32
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	33 # List of methods copied from lookup sub-objects:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	34 _delegated = ('lookup', 'queryMultiAdapter', 'lookup1', 'queryAdapter',
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	35 'adapter_hook', 'lookupAll', 'names',
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	36 'subscriptions', 'subscribers')
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	37
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	38 # All registries maintain a generation that can be used by verifying
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	39 # registries
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	40 _generation = 0
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	41
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	42 def __init__(self, bases=()):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	43
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	44 # The comments here could be improved. Possibly this bit needs
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	45 # explaining in a separate document, as the comments here can
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	46 # be quite confusing. /regebro
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	47
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	48 # {order -> {required -> {provided -> {name -> value}}}}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	49 # Here "order" is actually an index in a list, "required" and
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	50 # "provided" are interfaces, and "required" is really a nested
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	51 # key. So, for example:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	52 # for order == 0 (that is, self._adapters[0]), we have:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	53 # {provided -> {name -> value}}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	54 # but for order == 2 (that is, self._adapters[2]), we have:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	55 # {r1 -> {r2 -> {provided -> {name -> value}}}}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	56 #
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	57 self._adapters = []
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	58
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	59 # {order -> {required -> {provided -> {name -> [value]}}}}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	60 # where the remarks about adapters above apply
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	61 self._subscribers = []
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	62
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	63 # Set, with a reference count, keeping track of the interfaces
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	64 # for which we have provided components:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	65 self._provided = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	66
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	67 # Create ``_v_lookup`` object to perform lookup. We make this a
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	68 # separate object to to make it easier to implement just the
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	69 # lookup functionality in C. This object keeps track of cache
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	70 # invalidation data in two kinds of registries.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	71
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	72 # Invalidating registries have caches that are invalidated
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	73 # when they or their base registies change. An invalidating
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	74 # registry can only have invalidating registries as bases.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	75 # See LookupBaseFallback below for the pertinent logic.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	76
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	77 # Verifying registies can't rely on getting invalidation messages,
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	78 # so have to check the generations of base registries to determine
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	79 # if their cache data are current. See VerifyingBasePy below
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	80 # for the pertinent object.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	81 self._createLookup()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	82
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	83 # Setting the bases causes the registries described above
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	84 # to be initialized (self._setBases -> self.changed ->
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	85 # self._v_lookup.changed).
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	86
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	87 self.__bases__ = bases
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	88
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	89 def _setBases(self, bases):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	90 self.__dict__['__bases__'] = bases
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	91 self.ro = ro.ro(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	92 self.changed(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	93
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	94 __bases__ = property(lambda self: self.__dict__['__bases__'],
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	95 lambda self, bases: self._setBases(bases),
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	96 )
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	97
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	98 def _createLookup(self):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	99 self._v_lookup = self.LookupClass(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	100 for name in self._delegated:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	101 self.__dict__[name] = getattr(self._v_lookup, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	102
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	103 def changed(self, originally_changed):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	104 self._generation += 1
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	105 self._v_lookup.changed(originally_changed)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	106
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	107 def register(self, required, provided, name, value):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	108 if not isinstance(name, STRING_TYPES):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	109 raise ValueError('name is not a string')
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	110 if value is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	111 self.unregister(required, provided, name, value)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	112 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	113
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	114 required = tuple(map(_convert_None_to_Interface, required))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	115 name = _normalize_name(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	116 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	117 byorder = self._adapters
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	118 while len(byorder) <= order:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	119 byorder.append({})
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	120 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	121 key = required + (provided,)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	122
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	123 for k in key:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	124 d = components.get(k)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	125 if d is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	126 d = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	127 components[k] = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	128 components = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	129
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	130 if components.get(name) is value:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	131 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	132
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	133 components[name] = value
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	134
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	135 n = self._provided.get(provided, 0) + 1
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	136 self._provided[provided] = n
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	137 if n == 1:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	138 self._v_lookup.add_extendor(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	139
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	140 self.changed(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	141
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	142 def registered(self, required, provided, name=_BLANK):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	143 required = tuple(map(_convert_None_to_Interface, required))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	144 name = _normalize_name(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	145 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	146 byorder = self._adapters
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	147 if len(byorder) <= order:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	148 return None
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	149
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	150 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	151 key = required + (provided,)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	152
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	153 for k in key:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	154 d = components.get(k)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	155 if d is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	156 return None
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	157 components = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	158
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	159 return components.get(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	160
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	161 def unregister(self, required, provided, name, value=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	162 required = tuple(map(_convert_None_to_Interface, required))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	163 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	164 byorder = self._adapters
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	165 if order >= len(byorder):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	166 return False
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	167 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	168 key = required + (provided,)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	169
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	170 # Keep track of how we got to `components`:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	171 lookups = []
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	172 for k in key:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	173 d = components.get(k)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	174 if d is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	175 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	176 lookups.append((components, k))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	177 components = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	178
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	179 old = components.get(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	180 if old is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	181 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	182 if (value is not None) and (old is not value):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	183 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	184
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	185 del components[name]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	186 if not components:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	187 # Clean out empty containers, since we don't want our keys
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	188 # to reference global objects (interfaces) unnecessarily.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	189 # This is often a problem when an interface is slated for
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	190 # removal; a hold-over entry in the registry can make it
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	191 # difficult to remove such interfaces.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	192 for comp, k in reversed(lookups):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	193 d = comp[k]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	194 if d:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	195 break
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	196 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	197 del comp[k]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	198 while byorder and not byorder[-1]:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	199 del byorder[-1]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	200 n = self._provided[provided] - 1
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	201 if n == 0:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	202 del self._provided[provided]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	203 self._v_lookup.remove_extendor(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	204 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	205 self._provided[provided] = n
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	206
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	207 self.changed(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	208
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	209 def subscribe(self, required, provided, value):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	210 required = tuple(map(_convert_None_to_Interface, required))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	211 name = _BLANK
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	212 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	213 byorder = self._subscribers
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	214 while len(byorder) <= order:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	215 byorder.append({})
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	216 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	217 key = required + (provided,)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	218
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	219 for k in key:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	220 d = components.get(k)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	221 if d is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	222 d = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	223 components[k] = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	224 components = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	225
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	226 components[name] = components.get(name, ()) + (value, )
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	227
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	228 if provided is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	229 n = self._provided.get(provided, 0) + 1
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	230 self._provided[provided] = n
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	231 if n == 1:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	232 self._v_lookup.add_extendor(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	233
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	234 self.changed(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	235
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	236 def unsubscribe(self, required, provided, value=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	237 required = tuple(map(_convert_None_to_Interface, required))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	238 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	239 byorder = self._subscribers
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	240 if order >= len(byorder):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	241 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	242 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	243 key = required + (provided,)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	244
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	245 # Keep track of how we got to `components`:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	246 lookups = []
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	247 for k in key:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	248 d = components.get(k)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	249 if d is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	250 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	251 lookups.append((components, k))
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	252 components = d
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	253
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	254 old = components.get(_BLANK)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	255 if not old:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	256 # this is belt-and-suspenders against the failure of cleanup below
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	257 return # pragma: no cover
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	258
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	259 if value is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	260 new = ()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	261 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	262 new = tuple([v for v in old if v is not value])
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	263
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	264 if new == old:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	265 return
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	266
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	267 if new:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	268 components[_BLANK] = new
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	269 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	270 # Instead of setting components[_BLANK] = new, we clean out
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	271 # empty containers, since we don't want our keys to
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	272 # reference global objects (interfaces) unnecessarily. This
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	273 # is often a problem when an interface is slated for
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	274 # removal; a hold-over entry in the registry can make it
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	275 # difficult to remove such interfaces.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	276 del components[_BLANK]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	277 for comp, k in reversed(lookups):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	278 d = comp[k]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	279 if d:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	280 break
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	281 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	282 del comp[k]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	283 while byorder and not byorder[-1]:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	284 del byorder[-1]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	285
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	286 if provided is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	287 n = self._provided[provided] + len(new) - len(old)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	288 if n == 0:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	289 del self._provided[provided]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	290 self._v_lookup.remove_extendor(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	291
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	292 self.changed(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	293
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	294 # XXX hack to fake out twisted's use of a private api. We need to get them
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	295 # to use the new registed method.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	296 def get(self, _): # pragma: no cover
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	297 class XXXTwistedFakeOut:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	298 selfImplied = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	299 return XXXTwistedFakeOut
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	300
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	301
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	302 _not_in_mapping = object()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	303 class LookupBaseFallback(object):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	304
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	305 def __init__(self):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	306 self._cache = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	307 self._mcache = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	308 self._scache = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	309
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	310 def changed(self, ignored=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	311 self._cache.clear()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	312 self._mcache.clear()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	313 self._scache.clear()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	314
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	315 def _getcache(self, provided, name):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	316 cache = self._cache.get(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	317 if cache is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	318 cache = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	319 self._cache[provided] = cache
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	320 if name:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	321 c = cache.get(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	322 if c is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	323 c = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	324 cache[name] = c
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	325 cache = c
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	326 return cache
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	327
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	328 def lookup(self, required, provided, name=_BLANK, default=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	329 if not isinstance(name, STRING_TYPES):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	330 raise ValueError('name is not a string')
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	331 cache = self._getcache(provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	332 required = tuple(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	333 if len(required) == 1:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	334 result = cache.get(required[0], _not_in_mapping)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	335 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	336 result = cache.get(tuple(required), _not_in_mapping)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	337
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	338 if result is _not_in_mapping:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	339 result = self._uncached_lookup(required, provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	340 if len(required) == 1:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	341 cache[required[0]] = result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	342 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	343 cache[tuple(required)] = result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	344
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	345 if result is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	346 return default
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	347
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	348 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	349
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	350 def lookup1(self, required, provided, name=_BLANK, default=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	351 if not isinstance(name, STRING_TYPES):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	352 raise ValueError('name is not a string')
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	353 cache = self._getcache(provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	354 result = cache.get(required, _not_in_mapping)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	355 if result is _not_in_mapping:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	356 return self.lookup((required, ), provided, name, default)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	357
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	358 if result is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	359 return default
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	360
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	361 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	362
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	363 def queryAdapter(self, object, provided, name=_BLANK, default=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	364 return self.adapter_hook(provided, object, name, default)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	365
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	366 def adapter_hook(self, provided, object, name=_BLANK, default=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	367 if not isinstance(name, STRING_TYPES):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	368 raise ValueError('name is not a string')
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	369 required = providedBy(object)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	370 cache = self._getcache(provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	371 factory = cache.get(required, _not_in_mapping)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	372 if factory is _not_in_mapping:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	373 factory = self.lookup((required, ), provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	374
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	375 if factory is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	376 result = factory(object)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	377 if result is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	378 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	379
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	380 return default
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	381
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	382 def lookupAll(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	383 cache = self._mcache.get(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	384 if cache is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	385 cache = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	386 self._mcache[provided] = cache
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	387
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	388 required = tuple(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	389 result = cache.get(required, _not_in_mapping)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	390 if result is _not_in_mapping:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	391 result = self._uncached_lookupAll(required, provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	392 cache[required] = result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	393
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	394 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	395
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	396
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	397 def subscriptions(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	398 cache = self._scache.get(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	399 if cache is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	400 cache = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	401 self._scache[provided] = cache
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	402
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	403 required = tuple(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	404 result = cache.get(required, _not_in_mapping)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	405 if result is _not_in_mapping:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	406 result = self._uncached_subscriptions(required, provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	407 cache[required] = result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	408
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	409 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	410
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	411 LookupBasePy = LookupBaseFallback # BBB
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	412
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	413 try:
37178 68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	414 from ._zope_interface_coptimizations import LookupBase
37176 943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	415 except ImportError:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	416 LookupBase = LookupBaseFallback
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	417
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	418
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	419 class VerifyingBaseFallback(LookupBaseFallback):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	420 # Mixin for lookups against registries which "chain" upwards, and
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	421 # whose lookups invalidate their own caches whenever a parent registry
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	422 # bumps its own '_generation' counter. E.g., used by
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	423 # zope.component.persistentregistry
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	424
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	425 def changed(self, originally_changed):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	426 LookupBaseFallback.changed(self, originally_changed)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	427 self._verify_ro = self._registry.ro[1:]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	428 self._verify_generations = [r._generation for r in self._verify_ro]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	429
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	430 def _verify(self):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	431 if ([r._generation for r in self._verify_ro]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	432 != self._verify_generations):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	433 self.changed(None)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	434
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	435 def _getcache(self, provided, name):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	436 self._verify()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	437 return LookupBaseFallback._getcache(self, provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	438
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	439 def lookupAll(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	440 self._verify()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	441 return LookupBaseFallback.lookupAll(self, required, provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	442
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	443 def subscriptions(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	444 self._verify()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	445 return LookupBaseFallback.subscriptions(self, required, provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	446
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	447 VerifyingBasePy = VerifyingBaseFallback #BBB
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	448
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	449 try:
37178 68ee61822182 thirdparty: port zope.interface to relative imports Gregory Szorc <gregory.szorc@gmail.com> parents: 37176 diff changeset	450 from ._zope_interface_coptimizations import VerifyingBase
37176 943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	451 except ImportError:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	452 VerifyingBase = VerifyingBaseFallback
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	453
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	454
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	455 class AdapterLookupBase(object):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	456
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	457 def __init__(self, registry):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	458 self._registry = registry
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	459 self._required = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	460 self.init_extendors()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	461 super(AdapterLookupBase, self).__init__()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	462
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	463 def changed(self, ignored=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	464 super(AdapterLookupBase, self).changed(None)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	465 for r in self._required.keys():
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	466 r = r()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	467 if r is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	468 r.unsubscribe(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	469 self._required.clear()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	470
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	471
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	472 # Extendors
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	473 # ---------
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	474
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	475 # When given an target interface for an adapter lookup, we need to consider
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	476 # adapters for interfaces that extend the target interface. This is
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	477 # what the extendors dictionary is about. It tells us all of the
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	478 # interfaces that extend an interface for which there are adapters
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	479 # registered.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	480
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	481 # We could separate this by order and name, thus reducing the
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	482 # number of provided interfaces to search at run time. The tradeoff,
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	483 # however, is that we have to store more information. For example,
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	484 # if the same interface is provided for multiple names and if the
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	485 # interface extends many interfaces, we'll have to keep track of
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	486 # a fair bit of information for each name. It's better to
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	487 # be space efficient here and be time efficient in the cache
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	488 # implementation.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	489
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	490 # TODO: add invalidation when a provided interface changes, in case
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	491 # the interface's __iro__ has changed. This is unlikely enough that
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	492 # we'll take our chances for now.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	493
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	494 def init_extendors(self):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	495 self._extendors = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	496 for p in self._registry._provided:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	497 self.add_extendor(p)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	498
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	499 def add_extendor(self, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	500 _extendors = self._extendors
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	501 for i in provided.__iro__:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	502 extendors = _extendors.get(i, ())
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	503 _extendors[i] = (
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	504 [e for e in extendors if provided.isOrExtends(e)]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	505 +
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	506 [provided]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	507 +
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	508 [e for e in extendors if not provided.isOrExtends(e)]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	509 )
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	510
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	511 def remove_extendor(self, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	512 _extendors = self._extendors
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	513 for i in provided.__iro__:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	514 _extendors[i] = [e for e in _extendors.get(i, ())
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	515 if e != provided]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	516
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	517
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	518 def _subscribe(self, *required):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	519 _refs = self._required
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	520 for r in required:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	521 ref = r.weakref()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	522 if ref not in _refs:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	523 r.subscribe(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	524 _refs[ref] = 1
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	525
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	526 def _uncached_lookup(self, required, provided, name=_BLANK):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	527 required = tuple(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	528 result = None
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	529 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	530 for registry in self._registry.ro:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	531 byorder = registry._adapters
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	532 if order >= len(byorder):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	533 continue
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	534
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	535 extendors = registry._v_lookup._extendors.get(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	536 if not extendors:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	537 continue
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	538
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	539 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	540 result = _lookup(components, required, extendors, name, 0,
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	541 order)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	542 if result is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	543 break
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	544
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	545 self._subscribe(*required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	546
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	547 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	548
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	549 def queryMultiAdapter(self, objects, provided, name=_BLANK, default=None):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	550 factory = self.lookup(map(providedBy, objects), provided, name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	551 if factory is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	552 return default
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	553
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	554 result = factory(*objects)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	555 if result is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	556 return default
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	557
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	558 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	559
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	560 def _uncached_lookupAll(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	561 required = tuple(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	562 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	563 result = {}
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	564 for registry in reversed(self._registry.ro):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	565 byorder = registry._adapters
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	566 if order >= len(byorder):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	567 continue
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	568 extendors = registry._v_lookup._extendors.get(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	569 if not extendors:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	570 continue
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	571 components = byorder[order]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	572 _lookupAll(components, required, extendors, result, 0, order)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	573
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	574 self._subscribe(*required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	575
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	576 return tuple(result.items())
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	577
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	578 def names(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	579 return [c[0] for c in self.lookupAll(required, provided)]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	580
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	581 def _uncached_subscriptions(self, required, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	582 required = tuple(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	583 order = len(required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	584 result = []
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	585 for registry in reversed(self._registry.ro):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	586 byorder = registry._subscribers
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	587 if order >= len(byorder):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	588 continue
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	589
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	590 if provided is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	591 extendors = (provided, )
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	592 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	593 extendors = registry._v_lookup._extendors.get(provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	594 if extendors is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	595 continue
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	596
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	597 _subscriptions(byorder[order], required, extendors, _BLANK,
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	598 result, 0, order)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	599
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	600 self._subscribe(*required)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	601
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	602 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	603
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	604 def subscribers(self, objects, provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	605 subscriptions = self.subscriptions(map(providedBy, objects), provided)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	606 if provided is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	607 result = ()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	608 for subscription in subscriptions:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	609 subscription(*objects)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	610 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	611 result = []
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	612 for subscription in subscriptions:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	613 subscriber = subscription(*objects)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	614 if subscriber is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	615 result.append(subscriber)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	616 return result
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	617
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	618 class AdapterLookup(AdapterLookupBase, LookupBase):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	619 pass
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	620
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	621 @implementer(IAdapterRegistry)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	622 class AdapterRegistry(BaseAdapterRegistry):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	623
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	624 LookupClass = AdapterLookup
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	625
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	626 def __init__(self, bases=()):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	627 # AdapterRegisties are invalidating registries, so
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	628 # we need to keep track of out invalidating subregistries.
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	629 self._v_subregistries = weakref.WeakKeyDictionary()
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	630
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	631 super(AdapterRegistry, self).__init__(bases)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	632
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	633 def _addSubregistry(self, r):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	634 self._v_subregistries[r] = 1
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	635
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	636 def _removeSubregistry(self, r):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	637 if r in self._v_subregistries:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	638 del self._v_subregistries[r]
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	639
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	640 def _setBases(self, bases):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	641 old = self.__dict__.get('__bases__', ())
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	642 for r in old:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	643 if r not in bases:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	644 r._removeSubregistry(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	645 for r in bases:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	646 if r not in old:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	647 r._addSubregistry(self)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	648
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	649 super(AdapterRegistry, self)._setBases(bases)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	650
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	651 def changed(self, originally_changed):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	652 super(AdapterRegistry, self).changed(originally_changed)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	653
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	654 for sub in self._v_subregistries.keys():
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	655 sub.changed(originally_changed)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	656
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	657
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	658 class VerifyingAdapterLookup(AdapterLookupBase, VerifyingBase):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	659 pass
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	660
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	661 @implementer(IAdapterRegistry)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	662 class VerifyingAdapterRegistry(BaseAdapterRegistry):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	663
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	664 LookupClass = VerifyingAdapterLookup
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	665
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	666 def _convert_None_to_Interface(x):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	667 if x is None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	668 return Interface
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	669 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	670 return x
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	671
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	672 def _lookup(components, specs, provided, name, i, l):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	673 if i < l:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	674 for spec in specs[i].__sro__:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	675 comps = components.get(spec)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	676 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	677 r = _lookup(comps, specs, provided, name, i+1, l)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	678 if r is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	679 return r
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	680 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	681 for iface in provided:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	682 comps = components.get(iface)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	683 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	684 r = comps.get(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	685 if r is not None:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	686 return r
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	687
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	688 return None
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	689
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	690 def _lookupAll(components, specs, provided, result, i, l):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	691 if i < l:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	692 for spec in reversed(specs[i].__sro__):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	693 comps = components.get(spec)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	694 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	695 _lookupAll(comps, specs, provided, result, i+1, l)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	696 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	697 for iface in reversed(provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	698 comps = components.get(iface)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	699 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	700 result.update(comps)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	701
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	702 def _subscriptions(components, specs, provided, name, result, i, l):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	703 if i < l:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	704 for spec in reversed(specs[i].__sro__):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	705 comps = components.get(spec)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	706 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	707 _subscriptions(comps, specs, provided, name, result, i+1, l)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	708 else:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	709 for iface in reversed(provided):
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	710 comps = components.get(iface)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	711 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	712 comps = comps.get(name)
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	713 if comps:
943d77fc07a3 thirdparty: vendor zope.interface 4.4.3 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	714 result.extend(comps)

Mercurial > public > mercurial-scm > hg

annotate mercurial/thirdparty/zope/interface/adapter.py @ 37178:68ee61822182