*j UdZddlmZddlZddlmZddlmZddlm Z m Z ddl m Z m Z ddlmZerdd lmZee e zZdd ZGd d ej* ZGddeZGddeZeedZded<y)z) Engine classes for :func:`~pandas.eval` ) annotationsN) TYPE_CHECKING)NumExprClobberingError) align_termsreconstruct_object)MATHOPS REDUCTIONS)printing)Exprc|j}|tz}|r:dj|Dcgc] }t|c}}t d|d|dycc}w)z Attempt to prevent foot-shooting in a helpful way. Parameters ---------- expr : Expr Terms can contain z, zVariables in expression "z" overlap with builtins: ()N)names _ne_builtinsjoinreprr)exprroverlapxss AC:\FundamentalWorkbench\vendor\pandas\core\computation\engines.py_check_ne_builtin_clashrsc JJEl"G II01tAw0 1$'v-Gs! L  0sAcbeZdZdZdZd dZd dZd dZed dZ e jdZ y) AbstractEnginez/Object serving as a base class for all engines.Fc<||_d|_d|_d|_yN)r aligned_axes result_type result_name)selfrs r__init__zAbstractEngine.__init__5s!  c@tj|jS)zo Convert an expression for evaluation. Defaults to return the expression as a string. )r pprint_thingrrs rconvertzAbstractEngine.convert;s $$TYY//r!c4|js2t|jj\|_|_|_|j}t|j||j |jjj|j S)a* Run the engine on the expression. This method performs alignment which is necessary no matter what engine is being used, thus its implementation is in the base class. Returns ------- object The result of the passed expression. ) _is_alignedrrtermsrrr _evaluater return_type)rress revaluatezAbstractEngine.evaluateCs}DO E AD d/1A nn!        IIOO ' '      r!c>|jduxr|jduSr)rrr$s rr'zAbstractEngine._is_aligned^s#  ,M1A1A1MMr!cy)a Return an evaluated expression. Parameters ---------- env : Scope The local and global environment in which to evaluate an expression. Notes ----- Must be implemented by subclasses. Nr$s rr)zAbstractEngine._evaluatebsr!NreturnNone)r1str)r1object)r1bool) __name__ __module__ __qualname____doc__ has_neg_fracr r%r,propertyr'abcabstractmethodr)r/r!rrr0sI9L 0 6NN     r!r) metaclassceZdZdZdZdZy) NumExprEnginezNumExpr engine classTcddl}|j}|jj}|j}t |j|j ||S)Nr) local_dict)numexprr%renv full_scoperr,)rnerrDscopes rr)zNumExprEngine._evaluatexsG LLNiimm *{{1{//r!N)r6r7r8r9r:r)r/r!rr@r@ssL 0r!r@c"eZdZdZdZdZddZy) PythonEnginezS Evaluate an expression in Python space. Mostly for testing purposes. Fc"|jSr)rr$s rr,zPythonEngine.evaluatesyy{r!cyrr/r$s rr)zPythonEngine._evaluates r!Nr0)r6r7r8r9r:r,r)r/r!rrIrIs L r!rI)rCpythonzdict[str, type[AbstractEngine]]ENGINES)rr r1r2)r9 __future__rr<typingr pandas.errorsrpandas.core.computation.alignrrpandas.core.computation.opsrr pandas.io.formatsr pandas.core.computation.exprr frozensetrrABCMetarr@rIrM__annotations__r/r!rrXs# 0 '1:-.  &@ s{{@ F0N0"  >  ", (r!