o ٷi@sfUddlZddlZddlmZmZmZmZmZddlm Z dZ e e d<GdddZ Gdd d ZdS) N)ListOptionalSetTupleUnion) EinopsErroru… _ellipsisc@s&eZdZdZdefddZddZdS) AnonymousAxiszHImportant thing: all instances of this class are not equal to each othervaluecCs:t||_|jdkr|jdkrtdtd|jdS)NzENo need to create anonymous axis of length 1. Report this as an issuez0Anonymous axis should have positive length, not )intr r)selfr rB/home/ubuntu/.local/lib/python3.10/site-packages/einops/parsing.py__init__ s   zAnonymousAxis.__init__cCst|jdS)Nz-axis)strr )r rrr__repr__szAnonymousAxis.__repr__N)__name__ __module__ __qualname____doc__rrrrrrrr s r c @seZdZdZddddededefddZd efd d Zd efd d Z e ddeded e eeffddZ e ded efddZ dS)ParsedExpressionz non-mutable structure that contains information about one side of expression (e.g. 'b c (h w)') and keeps some information important for downstream F)allow_underscoreallow_duplicates expressionrrcsfd_d_t_d_g_d|vr9d|vrtdt|ddks,t|ddkr0td| dt }d_dfd d }d}|D]R}|d vr||durV||d}|d krgdurdtd gqH|dkr{durstdj dqHt |s|dt fvr|dur|}qH||7}qHtd|ddurtd|d|dur||dSdS)NF.z...z6Expression may contain dots only inside ellipsis (...)r zUExpression may contain dots only inside ellipsis (...); only one ellipsis for tensor Tcs |jvrr |dksstd|d|tkr8jtdur.jtd_dStd_dSt|}|rTt |dkrTdurQjgdS dSj |d\}}|sk|sktd|d ||rqt |}j||r|d_ durj|gdS|dS) N_z2Indexing expression contains duplicate dimension ""FTr )rzInvalid axis identifier:  ) identifiersrradd compositionappendhas_ellipsis_parenthesizedr isdecimalr check_axis_name_return_reasonr has_non_unitary_anonymous_axes)x is_number is_axis_namereasonrr bracket_groupr rr add_axis_name3s8         z0ParsedExpression.__init__..add_axis_namez() (zDAxis composition is one-level (brackets inside brackets not allowed))zBrackets are not balancedrzUnknown character ''z'Imbalanced parentheses in expression: "r) has_ellipsisr$setr r'r"rrcountreplacerr#isalnum)r rrrr.current_identifiercharrr,rrsT  "   zParsedExpression.__init__returncCs:g}|jD]}t|tsJd|D]}||qq|S)Nzdoes not work with ellipsis)r" isinstancelistr#)r result composed_axisaxisrrrflat_axes_orderqs  z ParsedExpression.flat_axes_ordercCs,|jD]}t|trt|dkrdSqdS)Nr TF)r"r:r;len)r axesrrrhas_composed_axesys z"ParsedExpression.has_composed_axesnamecCsvt|sdS|ddks|ddkr|dkr|rdSdSt|r-tjd|tdd |d vr9tjd tdd dS) N)Fznot a valid python identifierrr)T)Fz8axis name should should not start or end with underscorez7It is discouraged to use axes names that are keywords: ) stacklevel)r>zQIt is discouraged to use 'axis' as an axis name and will raise an error in future)r isidentifierkeyword iskeywordwarningswarnRuntimeWarning FutureWarning)rCrrrrr&s&   z.ParsedExpression.check_axis_name_return_reasoncCst|\}}|S)z Valid axes names are python identifiers except keywords, and additionally should not start or end with underscore )rr&)rCis_valid_reasonrrrcheck_axis_namesz ParsedExpression.check_axis_nameN)F)rrrrrboolrrr?rB staticmethodrr&rQrrrrrsR"r)rIrKtypingrrrrreinopsrrr__annotations__r rrrrrs