B k[ @sVddlZddlmZGdddeZddZGdd d eZGd d d eeZdS) N)typenamec@s$eZdZddZddZddZdS)VariadicSignatureTypecs2t|r|jn|f}|kp0tfdd|DS)Nc3s|]}t|jVqdS)N) issubclass variadic_type).0other)self8lib/python3.7/site-packages/multipledispatch/variadic.py sz:VariadicSignatureType.__subclasscheck__..) isvariadicrall)r subclassZ other_typer )r r __subclasscheck__s z'VariadicSignatureType.__subclasscheck__cCst|ot|jt|jkS)a Return True if other has the same variadic type Parameters ---------- other : object (type) The object (type) to check Returns ------- bool Whether or not `other` is equal to `self` )r setr)r rr r r __eq__szVariadicSignatureType.__eq__cCstt|t|jfS)N)hashtype frozensetr)r r r r __hash__ szVariadicSignatureType.__hash__N)__name__ __module__ __qualname__rrrr r r r rsrcCs t|tS)a)Check whether the type `obj` is variadic. Parameters ---------- obj : type The type to check Returns ------- bool Whether or not `obj` is variadic Examples -------- >>> isvariadic(int) False >>> isvariadic(Variadic[int]) True ) isinstancer)objr r r r $sr c@seZdZdZddZdS)VariadicSignatureMetazA metaclass that overrides ``__getitem__`` on the class. This is used to generate a new type for Variadic signatures. See the Variadic class for examples of how this behaves. cCsJt|ttfst|stdt|ts.|f}tdt|dt|ddS)NzVVariadic types must be type or tuple of types (Variadic[int] or Variadic[(int, float)]z Variadic[%s]r )r __slots__)rrtuple ValueErrorrrdict)r rr r r __getitem__@s  z!VariadicSignatureMeta.__getitem__N)rrr__doc__r!r r r r r;src@seZdZdZdS)VariadicaYA class whose getitem method can be used to generate a new type representing a specific variadic signature. Examples -------- >>> Variadic[int] # any number of int arguments >>> Variadic[(int, str)] # any number of one of int or str arguments >>> issubclass(int, Variadic[int]) True >>> issubclass(int, Variadic[(int, str)]) True >>> issubclass(str, Variadic[(int, str)]) True >>> issubclass(float, Variadic[(int, str)]) False N)rrrr"r r r r r#Nsr#) ZsixZutilsrrrr rZwith_metaclassr#r r r r s