diff options
Diffstat (limited to 'src/zope/interface/declarations.py')
| -rw-r--r-- | src/zope/interface/declarations.py | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/src/zope/interface/declarations.py b/src/zope/interface/declarations.py index bafe399..00daa7f 100644 --- a/src/zope/interface/declarations.py +++ b/src/zope/interface/declarations.py @@ -27,11 +27,15 @@ There are three flavors of declarations: __docformat__ = 'restructuredtext' import sys +from types import FunctionType +from types import MethodType +from types import ModuleType import weakref -from zope.interface.interface import InterfaceClass, Specification -from zope.interface.interface import SpecificationBase -from types import ModuleType, MethodType, FunctionType + from zope.interface.advice import addClassAdvisor +from zope.interface.interface import InterfaceClass +from zope.interface.interface import SpecificationBase +from zope.interface.interface import Specification # Registry of class-implementation specifications BuiltinImplementationSpecifications = {} @@ -760,7 +764,7 @@ Provides.__safe_for_unpickling__ = True try: from types import ClassType DescriptorAwareMetaClasses = ClassType, type -except ImportError: # Python 3 +except ImportError: #pragma NO COVERAGE (Python 3) DescriptorAwareMetaClasses = (type,) def directlyProvides(object, *interfaces): @@ -973,7 +977,7 @@ def noLongerProvides(object, interface): if interface.providedBy(object): raise ValueError("Can only remove directly provided interfaces.") -class ClassProvidesBasePy(object): +class ClassProvidesBaseFallback(object): def __get__(self, inst, cls): if cls is self._cls: @@ -988,14 +992,15 @@ class ClassProvidesBasePy(object): raise AttributeError('__provides__') -ClassProvidesBase = ClassProvidesBasePy +ClassProvidesBasePy = ClassProvidesBaseFallback # BBB +ClassProvidesBase = ClassProvidesBaseFallback # Try to get C base: try: import _zope_interface_coptimizations -except ImportError: +except ImportError: #pragma NO COVERAGE pass -else: +else: #pragma NO COVERAGE from _zope_interface_coptimizations import ClassProvidesBase @@ -1185,6 +1190,8 @@ def moduleProvides(*interfaces): # # Declaration querying support +# XXX: is this a fossil? Nobody calls it, no unit tests exercise it, no +# doctests import it, and the package __init__ doesn't import it. def ObjectSpecification(direct, cls): """Provide object specifications @@ -1251,9 +1258,9 @@ def ObjectSpecification(direct, cls): 1 """ - return Provides(cls, direct) + return Provides(cls, direct) #pragma NO COVER fossil -def getObjectSpecification(ob): +def getObjectSpecificationFallback(ob): provides = getattr(ob, '__provides__', None) if provides is not None: @@ -1268,7 +1275,9 @@ def getObjectSpecification(ob): return implementedBy(cls) -def providedBy(ob): +getObjectSpecification = getObjectSpecificationFallback + +def providedByFallback(ob): # Here we have either a special object, an old-style declaration # or a descriptor @@ -1317,8 +1326,9 @@ def providedBy(ob): return implementedBy(ob.__class__) return r +providedBy = providedByFallback -class ObjectSpecificationDescriptorPy(object): +class ObjectSpecificationDescriptorFallback(object): """Implement the `__providedBy__` attribute The `__providedBy__` attribute computes the interfaces peovided by @@ -1357,7 +1367,7 @@ class ObjectSpecificationDescriptorPy(object): return implementedBy(cls) -ObjectSpecificationDescriptor = ObjectSpecificationDescriptorPy +ObjectSpecificationDescriptor = ObjectSpecificationDescriptorFallback ############################################################################## @@ -1385,10 +1395,11 @@ _empty = Declaration() try: import _zope_interface_coptimizations -except ImportError: +except ImportError: #pragma NO COVER pass else: - from _zope_interface_coptimizations import implementedBy, providedBy + from _zope_interface_coptimizations import implementedBy + from _zope_interface_coptimizations import providedBy from _zope_interface_coptimizations import getObjectSpecification from _zope_interface_coptimizations import ObjectSpecificationDescriptor |