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d d g Z Gd d � d e j � Z Gd d � d e � Z Gd d � d e j � Z d S( u{ Weak reference support for Python.
This module is an implementation of PEP 205:
http://www.python.org/dev/peps/pep-0205/
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Entries in the dictionary will be discarded when no strong
reference to the value exists anymore
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u WeakValueDictionary.keysc c s6 t | � �$ x | j j � D] } | Vq WWd QXd S( u� Return an iterator that yields the weak references to the values.
The references are not guaranteed to be 'live' at the time
they are used, so the result of calling the references needs
to be checked before being used. This can be used to avoid
creating references that will cause the garbage collector to
keep the values around longer than needed.
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itervaluerefs� s
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u WeakValueDictionary.updatec C s t | j j � � S( u~ Return a list of weak references to the values.
The references are not guaranteed to be 'live' at the time
they are used, so the result of calling the references needs
to be checked before being used. This can be used to avoid
creating references that will cause the garbage collector to
keep the values around longer than needed.
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c s> | Ee Z d Z d Z d Z d d � Z � f d d � Z � S( u KeyedRefu[ Specialized reference that includes a key corresponding to the value.
This is used in the WeakValueDictionary to avoid having to create
a function object for each key stored in the mapping. A shared
callback object can use the 'key' attribute of a KeyedRef instead
of getting a reference to the key from an enclosing scope.
u keyc C s" t j | | | � } | | _ | S( N( u refu __new__u key( u typeu obu callbacku keyu self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __new__� s u KeyedRef.__new__c s t � j | | � d S( N( u superu __init__( u selfu obu callbacku key( u __class__( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __init__� s u KeyedRef.__init__( u key( u __name__u
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__locals__( ( u __class__u, /opt/alt/python33/lib64/python3.3/weakref.pyu KeyedRef� s u KeyedRefc B s | Ee Z d Z d Z d( d d � Z d d � Z d d � Z d d � Z d
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d d � Z d( d d � Z d d � Z d d � Z d d � Z e Z d d � Z d d � Z d d! � Z d" d# � Z d( d$ d% � Z d( d& d' � Z d( S() u WeakKeyDictionaryu� Mapping class that references keys weakly.
Entries in the dictionary will be discarded when there is no
longer a strong reference to the key. This can be used to
associate additional data with an object owned by other parts of
an application without adding attributes to those objects. This
can be especially useful with objects that override attribute
accesses.
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u" WeakKeyDictionary._commit_removalsc C s | j t | � =d S( N( u datau ref( u selfu key( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __delitem__ s u WeakKeyDictionary.__delitem__c C s | j t | � S( N( u datau ref( u selfu key( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __getitem__! s u WeakKeyDictionary.__getitem__c C s t | j � t | j � S( N( u lenu datau _pending_removals( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __len__$ s u WeakKeyDictionary.__len__c C s d t | � S( Nu <WeakKeyDictionary at %s>( u id( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __repr__' s u WeakKeyDictionary.__repr__c C s | | j t | | j � <d S( N( u datau refu _remove( u selfu keyu value( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __setitem__* s u WeakKeyDictionary.__setitem__c C sO t � } x? | j j � D]. \ } } | � } | d k r | | | <q q W| S( N( u WeakKeyDictionaryu datau itemsu None( u selfu newu keyu valueu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu copy- s u WeakKeyDictionary.copyc C sk d d l m } | j � } xH | j j � D]7 \ } } | � } | d k r, | | | � | | <q, q, W| S( Ni ( u deepcopy( u copyu deepcopyu __class__u datau itemsu None( u selfu memou deepcopyu newu keyu valueu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __deepcopy__7 s u WeakKeyDictionary.__deepcopy__c C s | j j t | � | � S( N( u datau getu ref( u selfu keyu default( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu get@ s u WeakKeyDictionary.getc C s6 y t | � } Wn t k
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t | j � S( uz Return a list of weak references to the keys.
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to be checked before being used. This can be used to avoid
creating references that will cause the garbage collector to
keep the keys around longer than needed.
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u WeakKeyDictionary.keyrefsc C s> x7 | j j � \ } } | � } | d k r | | f Sq d S( N( u datau popitemu None( u selfu keyu valueu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu popiteml s
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setdefaultv s u WeakKeyDictionary.setdefaultc K s� | j } | d k ro t | d � s9 t i � | � } n x3 | j � D]" \ } } | | t | | j � <qF Wn t | � r� | j | � n d S( Nu items( u datau Noneu hasattru typeu itemsu refu _removeu lenu update( u selfu dictu kwargsu du keyu value( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu updatey s u WeakKeyDictionary.updateN( u __name__u
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( u __doc__u _weakrefu getweakrefcountu getweakrefsu refu proxyu CallableProxyTypeu ProxyTypeu
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