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    OfHb                     @  sj  d Z ddlmZ ddlZddlmZmZ ddlmZ ddl	Z	ddl
mZmZmZ ddlZddlmZ ddlm  mZ ddlmZmZmZmZmZmZmZmZmZm Z m!Z!m"Z"m#Z#m$Z$m%Z% dd	l&m'Z'm(Z( dd
l)m*Z* ddl+m,Z, dddddZ-dddddZ.dddddZ/dd Z0dd Z1e1e/e.e-e'fdddddZ2dd Z3e3e4Z5e3e6Z7e8dd d d e9eD D Z:e:fd!d"Z;e8d#d e:D Z<e;ej=Z>e;ej?Z@e;ejAZBe;ejCZDe;ejEZFe;ejGZHe;ejIZJe;ejKZLe;ejMZNe;ejOZPe;ejQZRe;ejZSe;ejTZUe8g d$ZVe8g d%ZWe@e>B ePB eRB eSB eUB eDB eWB eV ZXe<eX eVB ZYeXeY@ ZZd&eZ Z[eZrJ e[dd'd(d)d*Z\ed+Z]d,d-d.d/d0Z^d1d2 Z_ee$d3Z`d4d5 Zae^eXeae`G d6d7 d7ejbZce8g d8Zde8ee Zee^eXedB eFe8g d9B  G d:d; d;ecZfe^eXedB e8d<gB G d=d> d>ecZgG d?d@ d@ZhegefdAZidS )Bz
:func:`~pandas.eval` parsers.
    )annotationsN)partialreduce	iskeyword)CallableClassVarTypeVar)UndefinedVariableError)ARITH_OPS_SYMSBOOL_OPS_SYMSCMP_OPS_SYMS	LOCAL_TAGMATHOPS
REDUCTIONSUNARY_OPS_SYMSBinOpConstantDivFuncNodeOpTermUnaryOpis_term)clean_backtick_quoted_tokstokenize_string)Scope)printingztuple[int, str])tokreturnc                 C  s   | \}}||dkrdn|fS )a`  
    Rewrite the assignment operator for PyTables expressions that use ``=``
    as a substitute for ``==``.

    Parameters
    ----------
    tok : tuple of int, str
        ints correspond to the all caps constants in the tokenize module

    Returns
    -------
    tuple of int, str
        Either the input or token or the replacement values
    === r   toknumtokvalr"   r"   U/var/www/ai-form-bot/venv/lib/python3.9/site-packages/pandas/core/computation/expr.py_rewrite_assign2   s    r'   c                 C  sF   | \}}|t jkr>|dkr$t jdfS |dkr6t jdfS ||fS ||fS )aj  
    Replace ``&`` with ``and`` and ``|`` with ``or`` so that bitwise
    precedence is changed to boolean precedence.

    Parameters
    ----------
    tok : tuple of int, str
        ints correspond to the all caps constants in the tokenize module

    Returns
    -------
    tuple of int, str
        Either the input or token or the replacement values
    &and|or)tokenizeOPNAMEr#   r"   r"   r&   _replace_booleansE   s    


r/   c                 C  s,   | \}}|t jkr$|dkr$t jtfS ||fS )a(  
    Replace local variables with a syntactically valid name.

    Parameters
    ----------
    tok : tuple of int, str
        ints correspond to the all caps constants in the tokenize module

    Returns
    -------
    tuple of int, str
        Either the input or token or the replacement values

    Notes
    -----
    This is somewhat of a hack in that we rewrite a string such as ``'@a'`` as
    ``'__pd_eval_local_a'`` by telling the tokenizer that ``__pd_eval_local_``
    is a ``tokenize.OP`` and to replace the ``'@'`` symbol with it.
    @)r,   r-   r   r#   r"   r"   r&   _replace_locals^   s    
r1   c                   s    fddS )z
    Compose 2 callables.
    c                    s    | i |S Nr"   )argskwargsfgr"   r&   <lambda>|       z_compose2.<locals>.<lambda>r"   r5   r"   r5   r&   	_compose2x   s    r:   c                  G  s   t | dksJ dtt| S )z&
    Compose 2 or more callables.
       z.At least 2 callables must be passed to compose)lenr   r:   )funcsr"   r"   r&   _compose   s    r>   str)sourcer   c                   s,   t  sJ dt fddt| D S )a  
    Compose a collection of tokenization functions.

    Parameters
    ----------
    source : str
        A Python source code string
    f : callable
        This takes a tuple of (toknum, tokval) as its argument and returns a
        tuple with the same structure but possibly different elements. Defaults
        to the composition of ``_rewrite_assign``, ``_replace_booleans``, and
        ``_replace_locals``.

    Returns
    -------
    str
        Valid Python source code

    Notes
    -----
    The `f` parameter can be any callable that takes *and* returns input of the
    form ``(toknum, tokval)``, where ``toknum`` is one of the constants from
    the ``tokenize`` module and ``tokval`` is a string.
    zf must be callablec                 3  s   | ]} |V  qd S r2   r"   .0xr6   r"   r&   	<genexpr>   r9   z_preparse.<locals>.<genexpr>)callabler,   
untokenizer   r@   r6   r"   rD   r&   	_preparse   s    rI   c                   s    fddS )zO
    Factory for a type checking function of type ``t`` or tuple of types.
    c                   s   t | j S r2   )
isinstancevalue)rC   tr"   r&   r8      r9   z_is_type.<locals>.<lambda>r"   rL   r"   rL   r&   _is_type   s    rN   c                 c  s(   | ] }t |trt|tjr|V  qd S r2   )rJ   type
issubclassastASTrB   noder"   r"   r&   rE      s   rE   c                 c  s   | ]}t t|V  qd S r2   )getattrrQ   )rB   namer"   r"   r&   rE      r9   c                   s    fdd|D }t |S )zE
    Filter out AST nodes that are subclasses of ``superclass``.
    c                 3  s   | ]}t | r|jV  qd S r2   )rP   __name__rS   
superclassr"   r&   rE      r9   z _filter_nodes.<locals>.<genexpr>)	frozenset)rY   Z	all_nodesZ
node_namesr"   rX   r&   _filter_nodes   s    r[   c                 c  s   | ]}|j V  qd S r2   )rW   rA   r"   r"   r&   rE      r9   )AssignModuleExpr)YieldGeneratorExpIfExpDictCompSetCompReprLambdaSetrR   IsIsNotz$cannot both support and not support zCallable[..., None])	node_namer   c                   s    fdd}|S )zV
    Return a function that raises a NotImplementedError with a passed node name.
    c                   s   t d  dd S )N'z' nodes are not implemented)NotImplementedError)selfr3   r4   ri   r"   r&   r6     s    z _node_not_implemented.<locals>.fr"   )ri   r6   r"   rm   r&   _node_not_implemented   s    rn   _Tzset[str]zCallable[[type[_T]], type[_T]])nodesr   c                   s   ddd fdd}|S )z
    Decorator to disallow certain nodes from parsing. Raises a
    NotImplementedError instead.

    Returns
    -------
    callable
    ztype[_T])clsr   c                   sB   d| _  D ]2}t|}d| }|  j |f7  _ t| || q
| S )Nr"   visit_)unsupported_nodesrn   setattr)rq   rT   Z
new_methodrV   rp   r"   r&   
disallowed  s    
zdisallow.<locals>.disallowedr"   )rp   rv   r"   ru   r&   disallow  s    
rw   c                   s    fdd}|S )zw
    Return a function to create an op class with its symbol already passed.

    Returns
    -------
    callable
    c                   s   t  g|R i |S )z
        Return a partial function with an Op subclass with an operator already passed.

        Returns
        -------
        callable
        )r   )rl   rT   r3   r4   op_class	op_symbolr"   r&   r6   /  s    z_op_maker.<locals>.fr"   )ry   rz   r6   r"   rx   r&   	_op_maker&  s    	
r{   )binaryZunaryc                   s    fdd}|S )z9
    Decorator to add default implementation of ops.
    c                   sl      D ]^\}}t| | d}t| | d}|D ]0}|| }|d ur4t||}t| d| | q4q| S )NZ_opsZ_op_nodes_maprr   )itemsrU   r{   rt   )rq   Zop_attr_namery   opsZops_mapopZop_nodeZmade_op
op_classesr"   r&   r6   D  s    
zadd_ops.<locals>.fr"   )r   r6   r"   r   r&   add_ops?  s    r   c                   @  s  e Zd ZU dZeZded< eZded< e	e
 e ZdZeeeeZeZdZeeeeZejejejejejejejejiZded< efd	d
ddZdd Zdd Zdd Zdd Z dHddZ!dd Z"dd Z#dIddZ$d d! Z%d"d# Z&d$d% Z'd&d
d'd(Z(d&d
d)d*Z)d&d
d+d,Z*d&d
d-d.Z+d&d
d/d0Z,d&d
d1d2Z-e-Z.d3d4 Z/d&d
d5d6Z0d7d
d8d9Z1d:d; Z2d<d= Z3dJd>d?Z4d@dA Z5dBdC Z6dDdE Z7dFdG Z8dS )KBaseExprVisitorz
    Custom ast walker. Parsers of other engines should subclass this class
    if necessary.

    Parameters
    ----------
    env : Scope
    engine : str
    parser : str
    preparser : callable
    zClassVar[type[Term]]
const_type	term_type)GtLtGtELtEEqNotEqInNotInBitAndBitOrAndOrAddSubMultNPowFloorDivMod)UAddUSubInvertNotztuple[str, ...]rs   Noner   c                 C  s"   || _ || _|| _|| _d | _d S r2   )envengineparser	preparserassignerrl   r   r   r   r   r"   r"   r&   __init__  s
    zBaseExprVisitor.__init__c              
   K  s   t |trn| |}ztt|}W nD tyl } z,tdd | D rTd|_	|W Y d }~n
d }~0 0 dt
|j }t| |}||fi |S )Nc                 s  s   | ]}t |V  qd S r2   r   rA   r"   r"   r&   rE     r9   z(BaseExprVisitor.visit.<locals>.<genexpr>z4Python keyword not valid identifier in numexpr queryrr   )rJ   r?   r   rQ   fix_missing_locationsparseSyntaxErroranysplitmsgrO   rW   rU   )rl   rT   r4   cleanemethodvisitorr"   r"   r&   visit  s    


zBaseExprVisitor.visitc                 K  s2   t |jdkrtd|jd }| j|fi |S )Nr;   z#only a single expression is allowedr   )r<   bodyr   r   )rl   rT   r4   exprr"   r"   r&   visit_Module  s    
zBaseExprVisitor.visit_Modulec                 K  s   | j |jfi |S r2   r   rK   rl   rT   r4   r"   r"   r&   
visit_Expr  s    zBaseExprVisitor.visit_Exprc                 C  s   |j }t|}t|rt|r|| jv rtt||f\}}tt||f\}}	|s\|s\|s\|	rh| j|  }|	r| j|j	g}
| 
|
| j}|r| j|j	g}
| 
|
| j}| |}||||fS r2   )r   rO   r   rewrite_mapmap_is_list_is_strr   add_tmprK   r   r   )rl   rT   leftrightZop_instanceZop_type	left_list
right_listZleft_strZ	right_strrV   r   r"   r"   r&   _rewrite_membership_op  s    
z&BaseExprVisitor._rewrite_membership_opNc                 C  sR   |d u r| j |jdd}|d u r0| j |jdd}| |||\}}}}||||fS )Nr   )sider   )r   r   r   r   )rl   rT   r   r   r   ry   r"   r"   r&   _maybe_transform_eq_ne  s    z&BaseExprVisitor._maybe_transform_eq_nec                 C  s   t t j}|jrNt|drN|jsN|j|krN| jt |j}| 	|| j}|jrt|dr|js|j|kr| jt |j}| 	|| j}||fS )NrK   )
npZdtypeZfloat32Z	is_scalarhasattrreturn_typer   r   rK   r   )rl   r   r   Zf32rV   r"   r"   r&   _maybe_downcast_constants  s,    z)BaseExprVisitor._maybe_downcast_constantsc                 C  s   | | j| j| j| j|S r2   )evaluater   r   r   r   )rl   binopeval_in_pythonr"   r"   r&   _maybe_eval  s    zBaseExprVisitor._maybe_evalinznot inr!   z!=<>z<=z>=c                 C  s   |||}|j r2td|j d|j d|j d| jdkrl|jtv rRt|dds^t|ddrl| || jS |j|v r| ||S | jdkrt|dd t	kst|dd t	kr| ||| S |S )	Nz unsupported operand type(s) for z: 'z' and 'rj   ZpytablesZis_datetimeFr   )
Zhas_invalid_return_type	TypeErrorr   rO   r   r   rU   r   
binary_opsobject)rl   r   ry   lhsrhsr   Zmaybe_eval_in_pythonresr"   r"   r&   _maybe_evaluate_binop  s4    	






z%BaseExprVisitor._maybe_evaluate_binopc                 K  s2   |  |\}}}}| ||\}}| ||||S r2   )r   r   r   )rl   rT   r4   r   ry   r   r   r"   r"   r&   visit_BinOp  s    zBaseExprVisitor.visit_BinOpc                 K  s   dd S )Nc                 S  s
   t | |S r2   )r   )r   r   r"   r"   r&   r8     r9   z+BaseExprVisitor.visit_Div.<locals>.<lambda>r"   r   r"   r"   r&   	visit_Div  s    zBaseExprVisitor.visit_Divc                 K  s    |  |j}|  |j}||S r2   )r   r   operand)rl   rT   r4   r   r   r"   r"   r&   visit_UnaryOp  s    zBaseExprVisitor.visit_UnaryOpr   c                 K  s   | j |j| jfi |S r2   )r   idr   r   r"   r"   r&   
visit_Name   s    zBaseExprVisitor.visit_Namec                 K  s   |  |j| jS r2   r   rK   r   r   r"   r"   r&   visit_NameConstant$  s    z"BaseExprVisitor.visit_NameConstantc                 K  s   |  |j| jS r2   r   r   r"   r"   r&   	visit_Num(  s    zBaseExprVisitor.visit_Numc                 K  s   |  |j| jS r2   r   r   r"   r"   r&   visit_Constant+  s    zBaseExprVisitor.visit_Constantc                 K  s   | j |j}| || j S r2   )r   r   sr   rl   rT   r4   rV   r"   r"   r&   	visit_Str/  s    zBaseExprVisitor.visit_Strc                   s*    j  fdd|jD } | j S )Nc                   s   g | ]}  | jqS r"   r   r   )rB   r   rl   r"   r&   
<listcomp>4  r9   z.BaseExprVisitor.visit_List.<locals>.<listcomp>)r   r   eltsr   r   r"   r   r&   
visit_List3  s    zBaseExprVisitor.visit_Listc                 K  s   |  |jS )zdf.index[4]r   r   r"   r"   r&   visit_Index9  s    zBaseExprVisitor.visit_Indexc           
   	   K  s   ddl m} | |j}| |j}||| j| j| jd}z|j| }W n0 tyx   ||| j| j| jd}|| }Y n0 | j	|}	| j
|	| jdS )Nr   )eval)Z
local_dictr   r   )r   )pandasr   r   rK   slicer   r   r   AttributeErrorr   r   )
rl   rT   r4   Zpd_evalrK   Zslobjresultvr   rV   r"   r"   r&   visit_Subscript=  s    zBaseExprVisitor.visit_Subscriptr   c                 K  sZ   |j }|dur| |j}|j}|dur4| |j}|j}|durN| |j}t|||S )zdf.index[slice(4,6)]N)lowerr   rK   upperstepr   )rl   rT   r4   r   r   r   r"   r"   r&   visit_SliceQ  s    zBaseExprVisitor.visit_Slicec                 K  s   t |jdkrtdt|jd tjs0td| jjdu rDtdz| j	|jd fi |}W n t
y~   |jd j}Y n0 t|d|| _| jdu rtd| j	|jfi |S )	z
        support a single assignment node, like

        c = a + b

        set the assigner at the top level, must be a Name node which
        might or might not exist in the resolvers

        r;   z#can only assign a single expressionr   z5left hand side of an assignment must be a single nameNz%cannot assign without a target objectrV   z@left hand side of an assignment must be a single resolvable name)r<   targetsr   rJ   rQ   Namer   target
ValueErrorr   r
   r   rU   r   rK   )rl   rT   r4   r   r"   r"   r&   visit_Assign_  s     

zBaseExprVisitor.visit_Assignc           	      K  s   |j }|j}|j}t|tjr| |j}z&t||}| j	|}| 
|| jW S  ty   t|tjr||j|kr|| Y S  Y n0 tdt|j d S )NzInvalid Attribute context )attrrK   ctxrJ   rQ   Loadr   rU   r   r   r   r   r   r   r   rO   rW   )	rl   rT   r4   r   rK   r   Zresolvedr   rV   r"   r"   r&   visit_Attribute}  s    
zBaseExprVisitor.visit_Attributec                   s  t |jtjr(|jjdkr( |j}nbt |jtjs@tdnJz |j}W n8 t	y   zt
|jj}W n ty    Y n0 Y n0 |d u rtd|jj t|dr|j}t |t
r fdd|jD }|jrtd|j d|| S  fd	d|jD }|jD ]H}t |tjs2td
|jj d|jr |j j||j< q j||i |} j| jdS d S )N__call__z"Only named functions are supportedzInvalid function call rK   c                   s   g | ]}  |qS r"   )r   rB   argr   r"   r&   r     r9   z.BaseExprVisitor.visit_Call.<locals>.<listcomp>z
Function "z$" does not support keyword argumentsc                   s   g | ]}  | jqS r"   r   r   r   r"   r&   r     r9   z keyword error in function call 'rj   )rV   r   )rJ   funcrQ   	Attributer   r   r   r   r   r
   r   r   r   r   rK   r3   keywordsrV   keywordr   r   r   r   )rl   rT   r   r4   r   new_argskeyrV   r"   r   r&   
visit_Call  sH    



zBaseExprVisitor.visit_Callc                 C  s   |S r2   r"   )rl   r   r"   r"   r&   translate_In  s    zBaseExprVisitor.translate_Inc              	   K  s   |j }|j}t|dkrF| |d }tj||j|d d}| |S |j}g }t||D ]6\}}	| tj	|	g|| |gd}
|	}|
|
 qZ| tjt |dS )Nr;   r   )r   r   r   )comparatorsr   r~   )r   values)r~   r  r<   r  rQ   r   r   r   zipCompareappendBoolOpr   )rl   rT   r4   r~   compsr   r   r   r	  compnew_noder"   r"   r&   visit_Compare  s    
zBaseExprVisitor.visit_Comparec                 C  s   t |ttfr|S | |S r2   )rJ   r   r   r   )rl   Zbopr"   r"   r&   _try_visit_binop  s    z BaseExprVisitor._try_visit_binopc                   s    fdd} j }t||S )Nc                   s<    | } |} ||\}}}}| j||S r2   )r  r   r   r   )rC   yr   r   r   ry   rT   rl   r"   r&   r     s    

z-BaseExprVisitor.visit_BoolOp.<locals>.visitor)r	  r   )rl   rT   r4   r   Zoperandsr"   r  r&   visit_BoolOp  s    zBaseExprVisitor.visit_BoolOp)NN)r   r   )N)9rW   
__module____qualname____doc__r   r   __annotations__r   r   r   r   r   r   Zbinary_op_nodesdictr
  Zbinary_op_nodes_mapr   Z	unary_opsZunary_op_nodesZunary_op_nodes_maprQ   r   r   r   r   r   rI   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   visit_Tupler   r   r   r   r   r  r  r  r  r  r"   r"   r"   r&   r   R  s\   

  
'
3r   )Dictr  r   r   )r  r  r   r   Tuplec                      s6   e Zd Zeeeeeedfdd fddZ	  Z
S )PandasExprVisitorrD   r   r   c                   s   t  |||| d S r2   superr   r   	__class__r"   r&   r     s    
zPandasExprVisitor.__init__)rW   r  r  r   rI   r>   r1   r/   r   r   __classcell__r"   r"   r!  r&   r    s
   

r  r   c                      s,   e Zd Zdddfdd fddZ  ZS )	PythonExprVisitorNc                 C  s   | S r2   r"   rH   r"   r"   r&   r8     r9   zPythonExprVisitor.<lambda>r   r   c                   s   t  j||||d d S )N)r   r  r   r!  r"   r&   r     s    zPythonExprVisitor.__init__)N)rW   r  r  r   r#  r"   r"   r!  r&   r$    s   r$  c                   @  s   e Zd ZU dZded< ded< ded< dddddddddZedd Zdd ZddddZ	ddddZ
dd Zedd Zd	S )r^   a  
    Object encapsulating an expression.

    Parameters
    ----------
    expr : str
    engine : str, optional, default 'numexpr'
    parser : str, optional, default 'pandas'
    env : Scope, optional, default None
    level : int, optional, default 2
    r   r   r?   r   r   numexprr   Nr   zScope | Noneintr   )r   r   r   levelr   c                 C  sL   || _ |pt|d d| _|| _|| _t| | j| j| j| _|  | _d S )Nr;   )r'  )	r   r   r   r   r   PARSERS_visitorr   terms)rl   r   r   r   r   r'  r"   r"   r&   r     s    zExpr.__init__c                 C  s   t | jdd S )Nr   )rU   r)  r   r"   r"   r&   r   +  s    zExpr.assignerc                 C  s   |  | jS r2   )r*  r   r   r"   r"   r&   r   /  s    zExpr.__call__r   c                 C  s   t | jS r2   )r   Zpprint_thingr*  r   r"   r"   r&   __repr__2  s    zExpr.__repr__c                 C  s
   t | jS r2   )r<   r   r   r"   r"   r&   __len__5  s    zExpr.__len__c                 C  s   | j | jS )z&
        Parse an expression.
        )r)  r   r   r   r"   r"   r&   r   8  s    z
Expr.parsec                 C  s2   t | jrt| jjgS tdd t| jD S )z1
        Get the names in an expression.
        c                 s  s   | ]}|j V  qd S r2   )rV   )rB   termr"   r"   r&   rE   E  r9   zExpr.names.<locals>.<genexpr>)r   r*  rZ   rV   comflattenr   r"   r"   r&   names>  s    
z
Expr.names)r%  r   Nr   )rW   r  r  r  r  r   propertyr   r   r+  r,  r   r0  r"   r"   r"   r&   r^     s"   
    
r^   )pythonr   )jr  
__future__r   rQ   	functoolsr   r   r  r   r,   typingr   r   r	   numpyr   Zpandas.errorsr
   Zpandas.core.commoncorecommonr.  Zpandas.core.computation.opsr   r   r   r   r   r   r   r   r   r   r   r   r   r   r   Zpandas.core.computation.parsingr   r   Zpandas.core.computation.scoper   Zpandas.io.formatsr   r'   r/   r1   r:   r>   rI   rN   listr   r?   r   rZ   dirZ
_all_nodesr[   Z_all_node_namesmodZ
_mod_nodesstmtZ_stmt_nodesr   Z_expr_nodesexpr_contextZ_expr_context_nodesboolopZ_boolop_nodesoperatorZ_operator_nodesunaryopZ_unary_op_nodescmpopZ_cmp_op_nodescomprehensionZ_comprehension_nodesexcepthandlerZ_handler_nodes	argumentsZ_arguments_nodesZ_keyword_nodesaliasZ_alias_nodesZ_hacked_nodesZ_unsupported_expr_nodesZ_unsupported_nodesZ_base_supported_nodesintersectionZ_msgrn   ro   rw   r{   Z_op_classesr   NodeVisitorr   Z_python_not_supportedZ_numexpr_supported_callsr  r$  r^   r(  r"   r"   r"   r&   <module>   s   D
"














   =