o nÄŽizã@s(dZddlZddlZGdd„deƒZdS)z:Generic visitor pattern implementation for Python objects.éNc@s’eZdZdZejddd„iiZedd„ƒZedd„ƒZ ed d „ƒZ ed d „ƒZ eifd d„ƒZ dd„Z dd„Zdd„Zdd„Zdd„Zdd„ZdS)ÚVisitorFNcOódS)NF©©ÚselfÚobjÚargsÚkwargsrrúR/home/jeff/fluffinator/venv/lib/python3.10/site-packages/fontTools/misc/visitor.pyÚszVisitor.cs2ˆtksJdƒ‚dˆjvriˆ_‡‡fdd„}|S)NzSubclass Visitor instead.Ú _visitorscsˆ|jdksJ‚ˆD]8\}}t|ƒtkr|f}t|ƒtkr|f}|D]}ˆj |i¡}|D]}||vs;Jd|j|fƒ‚|||<q,q!q dS)NÚvisitz?Oops, class '%s' has visitor function for '%s' defined already.)Ú__name__ÚtypeÚtupleÚstrr Ú setdefault)ÚmethodÚclazzesÚattrsÚclazzr Úattr©ÚcelfÚ clazzes_attrsrr Úwrappers$    ÿÿ ûþz"Visitor._register..wrapper)rÚ__dict__r )rrrrrr Ú _registers  zVisitor._registercCs"t|ƒtkr |f}| |dfg¡S)N©N)rrr)rrrrr Úregister*s zVisitor.registercCsJg}t|ƒtkr |f}t|ƒtkr|f}|D] }| ||f¡q| |¡Sr)rrrÚappendr)rrrrrrrr Ú register_attr0s   zVisitor.register_attrcCs | |¡Sr)rrrrr Úregister_attrs;s zVisitor.register_attrscCsdt|ƒ}| ¡D]'}t|ddƒ}|dur|S| ¡D]}|j |d¡}|dur.|Sqq|S)Nr )rÚmroÚgetattrr Úget)rÚthingÚ_defaultÚtypr ÚbaseÚmrrr Ú _visitorsFor?s   û ÿþzVisitor._visitorsForc Os°tt|ƒ ¡ƒ}| |¡}| dd¡}|D]@}|ddkrqt||ƒ}| ||¡} | durG| ||||g|¢Ri|¤Ž} | dksF| durG|jrGq|j|||g|¢Ri|¤ŽqdS)aýCalled to visit an object. This function loops over all non-private attributes of the objects and calls any user-registered (via ``@register_attr()`` or ``@register_attrs()``) ``visit()`` functions. The visitor will proceed to call ``self.visitAttr()``, unless there is a user-registered visit function and: * It returns ``False``; or * It returns ``None`` (or doesn't return anything) and ``visitor.defaultStop`` is ``True`` (non-default). Ú*NrÚ_F)ÚsortedÚvarsÚkeysr+r%r$Ú defaultStopÚ visitAttr) rrrr r0r ÚdefaultVisitorÚkeyÚvalueÚ visitorFuncÚretrrr Ú visitObjectOs     ÷zVisitor.visitObjectcOs|j|g|¢Ri|¤ŽdS)z*Called to visit an attribute of an object.N©r )rrrr5rr rrr r2jszVisitor.visitAttrcOs&|D]}|j|g|¢Ri|¤ŽqdS)z)Called to visit any value that is a list.Nr9©rrrr r5rrr Ú visitListnsÿzVisitor.visitListcOs*| ¡D]}|j|g|¢Ri|¤ŽqdS)z/Called to visit any value that is a dictionary.N)Úvaluesr r:rrr Ú visitDictss ÿzVisitor.visitDictcOr)zMCalled to visit any value that is not an object, list, or dictionary.Nrrrrr Ú visitLeafxszVisitor.visitLeafcOsæ| |¡ dd¡}|dur&|||g|¢Ri|¤Ž}|dks$|dur&|jr&dSt|dƒr?t|tjƒs?|j|g|¢Ri|¤ŽdSt|tƒrR|j |g|¢Ri|¤ŽdSt|t ƒre|j |g|¢Ri|¤ŽdS|j |g|¢Ri|¤ŽdS)aGThis is the main entry to the visitor. The visitor will visit object ``obj``. The visitor will first determine if there is a registered (via ``@register()``) visit function for the type of object. If there is, it will be called, and ``(visitor, obj, *args, **kwargs)`` will be passed to the user visit function. The visitor will not recurse if there is a user-registered visit function and: * It returns ``False``; or * It returns ``None`` (or doesn't return anything) and ``visitor.defaultStop`` is ``True`` (non-default) Otherwise, the visitor will proceed to dispatch to one of ``self.visitObject()``, ``self.visitList()``, ``self.visitDict()``, or ``self.visitLeaf()`` (any of which can be overriden in a subclass). NFr) r+r%r1ÚhasattrÚ isinstanceÚenumÚEnumr8Úlistr;Údictr=r>)rrrr r6r7rrr r }s  z Visitor.visit)rÚ __module__Ú __qualname__r1ÚweakrefÚ ProxyTyper Ú classmethodrrr!r"r+r8r2r;r=r>r rrrr rs(ü     r)Ú__doc__rArGÚobjectrrrrr Ús