E g#dZddlZddlZddlZddlZejdZejdZddZGddZ dS) z-Refactored 'safe reference from dispatcher.pyN__self____func__c@ t|}|At|dst|dsJd|dt||}|SdS#t$r=t |rt j||cYSt j|cYSwxYw)aReturn a *safe* weak reference to a callable target. - ``target``: The object to be weakly referenced, if it's a bound method reference, will create a BoundMethodWeakref, otherwise creates a simple weakref. - ``on_delete``: If provided, will have a hard reference stored to the callable to be called after the safe reference goes out of scope with the reference object, (either a weakref or a BoundMethodWeakref) as argument. Nim_funcrzsafe_ref target z@ has im_self, but no im_func, don't know how to create reference)target on_delete)get_selfhasattrBoundMethodWeakrefAttributeErrorcallableweakrefref)rrim_self references E/var/www/sysmax/venv/lib/python3.11/site-packages/blinker/_saferef.pysafe_refr.s6""  69-- 1L1L  56555   +&INNNI    ''' I   ';vy11 1 1 1;v&& & & & 'sA.BBBceZdZdZejZd fd Zd dZe dZ dZ e Z dZ dZd Zd ZxZS) r a'Safe' and reusable weak references to instance methods. BoundMethodWeakref objects provide a mechanism for referencing a bound method without requiring that the method object itself (which is normally a transient object) is kept alive. Instead, the BoundMethodWeakref object keeps weak references to both the object and the function which together define the instance method. Attributes: - ``key``: The identity key for the reference, calculated by the class's calculate_key method applied to the target instance method. - ``deletion_methods``: Sequence of callable objects taking single argument, a reference to this object which will be called when *either* the target object or target function is garbage collected (i.e. when this object becomes invalid). These are specified as the on_delete parameters of safe_ref calls. - ``weak_self``: Weak reference to the target object. - ``weak_func``: Weak reference to the target function. Class Attributes: - ``_all_instances``: Class attribute pointing to all live BoundMethodWeakref objects indexed by the class's calculate_key(target) method applied to the target objects. This weak value dictionary is used to short-circuit creation so that multiple references to the same (object, function) pair produce the same BoundMethodWeakref instance. Nc||}|j|}||j||St |}||j|<|j||g|Ri||S)aCreate new instance or return current instance. Basically this method of construction allows us to short-circuit creation of references to already-referenced instance methods. The key corresponding to the target is calculated, and if there is already an existing reference, that is returned, with its deletion_methods attribute updated. Otherwise the new instance is created and registered in the table of already-referenced methods. ) calculate_key_all_instancesgetdeletion_methodsappendsuper__new____init__) clsrr argumentsnamedkeycurrentbase __class__s rrzBoundMethodWeakref.__new__qs''$((--    $ + +I 6 6 6N77??3''D&*C s # DM&) Ai A A A5 A A AKcR|fd}|g|_|||_t|}t |}t j|||_t j|||_t||_ t|j |_ dS)aReturn a weak-reference-like instance for a bound method. - ``target``: The instance-method target for the weak reference, must have im_self and im_func attributes and be reconstructable via the following, which is true of built-in instance methods:: target.im_func.__get__( target.im_self ) - ``on_delete``: Optional callback which will be called when this weak reference ceases to be valid (i.e. either the object or the function is garbage collected). Should take a single argument, which will be passed a pointer to this object. c |jdd}|jdd= |jj|j=n#t$rYnwxYw|D]} t |r ||#t $rY tjnA#t$r4tj d}td|d|d|YnwxYwYwxYwdS)z=Set self.isDead to True when method or instance is destroyed.NzException during saferef z cleanup function z: ) rr$rr!KeyErrorr Exception traceback print_excr sysexc_infoprint)weakselfmethodsfunctiones rremovez+BoundMethodWeakref.__init__..removesB+AAA.G%aaa( N1$(;;    #   ))'  !+----)LNN1-@@@08@@<=@@  sB. ;;A C)A=<C=;B;8C:B;;CCN) rrr!r get_funcrr weak_self weak_funcstr self_name__name__ func_name)r1rrr5rrs rrzBoundMethodWeakref.__init__s"#    ,"+ %%f--6""6"" Wf55 Wf55WW-..r%crtt|tt|fS)zCalculate the reference key for this reference. Currently this is a two-tuple of the id()'s of the target object and the target function respectively. )idr r6)rrs rrz BoundMethodWeakref.calculate_keys/8F##$$b&)9)9&:&:;;r%cXd|jj|j|jS)z-Give a friendly representation of the object.z {}({}.{}))formatr$r;r:r<r1s r__str__zBoundMethodWeakref.__str__s,!! N # N N   r%c8t|j|jfSN)hashr:r!rAs r__hash__zBoundMethodWeakref.__hash__sT^TX.///r%c|duS)z'Whether we are still a valid reference.NrAs r __nonzero__zBoundMethodWeakref.__nonzero__stvvT!!r%ct||js'tj|jt |Stj|j|jS)zCompare with another reference.) isinstancer$operatoreqtyper!)r1others r__eq__zBoundMethodWeakref.__eq__sF%00 <;t~tE{{;; ;{48UY///r%c|}|+|}|||SdS)a?Return a strong reference to the bound method. If the target cannot be retrieved, then will return None, otherwise returns a bound instance method for our object and function. Note: You may call this method any number of times, as it does not invalidate the reference. N)r7r8__get__)r1rr3s r__call__zBoundMethodWeakref.__call__sG!!  ~~''H#''///tr%rD)r; __module__ __qualname____doc__rWeakValueDictionaryrrr classmethodrrB__repr__rFrIrPrS __classcell__)r$s@rr r MsB1W022N,././././`<<[<   H000"""000 r%r rD) rVrLr-r+r attrgetterr r6rr rHr%rr\sF43  8 z * * 8 z * *>YYYYYYYYYYr%