4686002484

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push

github

Committed by Michael Howitz

Commit Message

Fix too long line.

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460 of 475 branches covered (96.84%)

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4646 of 4646 relevant lines covered (100.0%)

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/src/zope/component/_declaration.py

##############################################################################
#
# Copyright (c) 2001, 2002 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Adapter declarations
"""
import sys


class adapter:
    """
    Decorator that declares that the decorated object adapts the given
    *interfaces*.

    This is commonly used in conjunction with :obj:`zope.interface.implementer`
    to declare what adapting the *interfaces* will provide.
    """

    def __init__(self, *interfaces):
        self.interfaces = interfaces

    def __call__(self, ob):
        if isinstance(ob, type):
            ob.__component_adapts__ = _adapts_descr(self.interfaces)
        else:
            ob.__component_adapts__ = self.interfaces

        return ob


def adapts(*interfaces):
    frame = sys._getframe(1)
    locals = frame.f_locals

    # Ensure we were called from a class def.
    if locals is frame.f_globals or '__module__' not in locals:
        raise TypeError("adapts can be used only from a class definition.")

    if '__component_adapts__' in locals:
        raise TypeError("adapts can be used only once in a class definition.")

    locals['__component_adapts__'] = _adapts_descr(interfaces)


def adaptedBy(ob):
    """
    Return the *interfaces* that *ob* will adapt, as declared by
    :obj:`adapter`.
    """
    return getattr(ob, '__component_adapts__', None)


def getName(ob):
    return getattr(ob, '__component_name__', '')


class _adapts_descr:
    def __init__(self, interfaces):
        self.interfaces = interfaces

    def __get__(self, inst, cls):
        if inst is None:
            return self.interfaces
        raise AttributeError('__component_adapts__')

1	##############################################################################
2	#
3	# Copyright (c) 2001, 2002 Zope Foundation and Contributors.
4	# All Rights Reserved.
5	#
6	# This software is subject to the provisions of the Zope Public License,
7	# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
8	# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
9	# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
10	# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
11	# FOR A PARTICULAR PURPOSE.
12	#
13	##############################################################################
14	"""Adapter declarations	1✔
15	"""
16	import sys	1✔
17
18
19	class adapter:	1✔
20	"""
21	Decorator that declares that the decorated object adapts the given
22	interfaces.
23
24	This is commonly used in conjunction with :obj:`zope.interface.implementer`
25	to declare what adapting the interfaces will provide.
26	"""
27
28	def __init__(self, *interfaces):	1✔
29	self.interfaces = interfaces	1✔
30
31	def __call__(self, ob):	1✔
32	if isinstance(ob, type):	1✔
33	ob.__component_adapts__ = _adapts_descr(self.interfaces)	1✔
34	else:
35	ob.__component_adapts__ = self.interfaces	1✔
36
37	return ob	1✔
38
39
40	def adapts(*interfaces):	1✔
41	frame = sys._getframe(1)	1✔
42	locals = frame.f_locals	1✔
43
44	# Ensure we were called from a class def.
45	if locals is frame.f_globals or '__module__' not in locals:	1✔
46	raise TypeError("adapts can be used only from a class definition.")	1✔
47
48	if '__component_adapts__' in locals:	1✔
49	raise TypeError("adapts can be used only once in a class definition.")	1✔
50
51	locals['__component_adapts__'] = _adapts_descr(interfaces)	1✔
52
53
54	def adaptedBy(ob):	1✔
55	"""
56	Return the interfaces that ob will adapt, as declared by
57	:obj:`adapter`.
58	"""
59	return getattr(ob, '__component_adapts__', None)	1✔
60
61
62	def getName(ob):	1✔
63	return getattr(ob, '__component_name__', '')	1✔
64
65
66	class _adapts_descr:	1✔
67	def __init__(self, interfaces):	1✔
68	self.interfaces = interfaces	1✔
69
70	def __get__(self, inst, cls):	1✔
71	if inst is None:	1✔
72	return self.interfaces	1✔
73	raise AttributeError('__component_adapts__')	1✔

zopefoundation / zope.component / 4686002484

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