o
    go                     @   sX  U d Z ddlZddlmZmZmZmZmZmZm	Z	m
Z
mZ ejdkr)ddlmZ nddlmZ ddlmZ ddlmZ ddlmZmZ dd	lmZmZ dd
lmZ ddlmZ ddlmZmZm Z m!Z! e"e ej#Z$ee%d< e
dZ&eee f Z'e(Z)e(Z*ej+ej,ej-hZ.ee%d< e$j/e$j0e$j1e$j2e$j3e$j4e$j5e$j6e$j7e$j8h
Z9ee%d< dZ:ee%d< dej;e:< ddhZ<ee%d< ej=ej>ej?ej@ejAejBhZCee%d< ejDejEejFejGejHejIejJejKejLejMejNejOejPejQhZRee%d< ejKejQhZSee%d< eSejLhB ZTee%d< e$jUe$jVe$jWe$jXe$jYhZZee%d< e$j[e$j\e$j]e$j^e$j_e$j`e$jahZbee%d< e$jce$jde$jee$jfe$jge$jhe$jie$jje$jke$jle$jme$jne$jWe$joe$jpe$jqhZree%d< e$jse$jthZuee%d< h dZvee%d< e$jwe$j_e$jxhZyee%d < ejzej{ej|ej}ej~ejiZee%d!< ee Zee%d"< ee Zee%d#< eeB Zee%d$< eeje:hB Zee%d%< d&Zed'd(G d)d* d*ee& Zd+ed,ed-ed.efd/d0Zdd2e(d3ed4ed.efd5d6Zd7ee' d.ee fd8d9Zd7ee' d:eee*  d.efd;d<Zd7ee' d.ee* fd=d>Zd?e d@e'd.ee' fdAdBZdCe'dDe'd.dfdEdFZd+ed.e'fdGdHZd7e'd.ee fdIdJZd7e'd.efdKdLZd+ed-ed.efdMdNZd7e'd.efdOdPZd7e'd.efdQdRZd7e'd.efdSdTZejzej{ffdUedVedWee dXe	e(e(f d.ef
dYdZZd7e'd.efd[d\Zdd7e'd^ed.efd_d`Zd7e'd.efdadbZd7e'd.efdcddZd+edeee* d.efdfdgZd+ed.efdhdiZd7e d.efdjdkZd7e d.efdldmZd7e d.efdndoZd7e'd.efdpdqZd7e'd.efdrdsZd+ed.efdtduZd+ed.efdvdwZd+ed.efdxdyZd+ed.efdzd{Zd+ed.efd|d}Zd+ed.efd~dZd+ed.efddZd+ed.efddZded.efddZd'dde de'ded.dfddZd7e'd.ee' fddZd+ed.dfddZded.ee fddZded.ee fddZded.ee fddZded.ee fddZded.ee fddZd+ed.efddZd7e'd.ee fddZd7e'd.ee fddZd+ed.e'fddZdS )z>
blib2to3 Node/Leaf transformation-related utility functions.
    N)	FinalGenericIteratorListOptionalSetTupleTypeVarUnion)   
   )	TypeGuard)
mypyc_attr)	CACHE_DIR)ModePreview)get_string_prefixhas_triple_quotes)pygram)token)NLLeafNode	type_reprsymsT
WHITESPACE	STATEMENT   STANDALONE_COMMENTandorLOGIC_OPERATORSCOMPARATORSMATH_OPERATORSSTARSVARARGS_SPECIALSVARARGS_PARENTSUNPACKING_PARENTSTEST_DESCENDANTSTYPED_NAMES>   %=&=*=+=-=/=@=^=|=**=//=<<=>>=:=ASSIGNMENTSIMPLICIT_TUPLEBRACKETOPENING_BRACKETSCLOSING_BRACKETSBRACKETSALWAYS_NO_SPACE7   T)allow_interpreted_subclassesc                   @   s<   e Zd ZdZdedee fddZdedee fddZdS )	VisitorzBBasic lib2to3 visitor that yields things of type `T` on `visit()`.nodereturnc                 c   sd    |j dk rtj|j  }ntt|j }t| d| d}|r(||E dH  dS | |E dH  dS )az  Main method to visit `node` and its children.

        It tries to find a `visit_*()` method for the given `node.type`, like
        `visit_simple_stmt` for Node objects or `visit_INDENT` for Leaf objects.
        If no dedicated `visit_*()` method is found, chooses `visit_default()`
        instead.

        Then yields objects of type `T` from the selected visitor.
           visit_N)typer   tok_namestrr   getattrvisit_default)selfrD   namevisitf rP   K/var/www/html/bloggers_ems/venv/lib/python3.10/site-packages/black/nodes.pyvisit   s   

zVisitor.visitc                 c   s0    t |tr|jD ]}| |E dH  q	dS dS )zCDefault `visit_*()` implementation. Recurses to children of `node`.N)
isinstancer   childrenrR   )rM   rD   childrP   rP   rQ   rL      s   

zVisitor.visit_defaultN)	__name__
__module____qualname____doc__LNr   r   rR   rL   rP   rP   rP   rQ   rC      s    rC   leafcomplex_subscriptmoderE   c                C   sR  d}d}d}| j }| j}| j}|tv r|S |tjkr|S |dus'J d| |tjkr9|j tjtj	tj
hvr9|S | j}	|	st|}
|
rI|
j tv rK|S |tjkrd|
j tjkrX|S |
j tjkrb|sb|S |S |
j tjkr|
jr|
jj tjtjtjtjhv r}|S |
jj tjkr|
jS nl|
j tjkrt|
tjkrt|
jtj	kr|S |
j tv rt|
ttB dr|S nE|
j tjkr|
jr|
jj tjtj
hv r|r|S |S n+|
jr|
jj tjkr|
j tv r|S |
j tjkr|jr|jj tj kr|S n|	j tv r|S |j tjtjhv r|	r|	j tjkr
|S |S |j tjkr!|	r|	j tjkr|S |S |j tjkrR|	s-|S |tjkr=|	j t!vr;|S |S |	j tjkrG|	jS |	j tjkrP|S |S |j t!v rm|	skt|}
|
ri|
j tjkrk|S |S |j tj"kr|tj#ks|tj$kr|S |	s|tj%ks|tj&kr|S |S |	j tjkr|S |S |j tjkr|tjkr|S |	st|}
|
r|
j tj#kr|S |S |	j tjhtB v r|S |S |j tj kr|S |j tj'kr |	r|S t|}
|
r|
j tjks|
j tj%kr|S |S |j tj(kr|tj#kr|S |	r|	j tj#kr|S |S |j tjtj
hv rV|	s@|jdus4J d|jj tj	kr>|S |S |tj)ksM|	j tj)krO|S |sT|S |S |j tj*krj|	rh|tj%krh|S |S |j tj+kr|	r}|	j tj,kr}|S |S |j tjtjhv r|	st|}
|
r|
j tv r|S |
j}|dusJ |
j tjkr|j tjtj
hv r|S |
j tjkr|j tjkr|S |S |tj-tj.tj/hv r|S |S |j tj0kr|tj%kr|	r|	j tj%kr|S |S |tj-kr|dkr|S |	r|	j tj%kr|S |S |j tj
kr|S |j tj1kr'|tjkr'|S |S )	zReturn whitespace prefix if needed for the given `leaf`.

    `complex_subscript` signals whether the given leaf is part of a subscription
    which has non-trivial arguments, like arithmetic expressions or function calls.
      z  Nz/INTERNAL ERROR: hand-made leaf without parent: )withinzsubscripts are always parentedimport)2rH   parentvaluer@   r   COMMENTCOLONr   	subscriptsubscriptlistsliceopprev_siblingpreceding_leafr=   COMMAEQUALarglistargument
parametersvarargslisttypedargslistprefixSTARparent_type	star_exprr&   	is_varargr'   r(   factorr$   AT	decoratorr*   trailerLPARRPARDOTLSQBdotted_nameclassdef
COLONEQUALatomdictsetmaker
DOUBLESTARNAMENUMBERSTRINGimport_fromexcept_clause)r[   r\   r]   NOSPACEDOUBLESPACEtpvprevprevpprevp_parentrP   rP   rQ   
whitespace   sl  



 
    ~vofcYV"JC4/*
	r   
nl_count	form_feed
empty_linec                 C   s    |r|| d  d | S ||  S )z$Generate a normalized prefix string.   rP   )r   r   r   rP   rP   rQ   make_simple_prefix  s   r   rD   c                 C   sR   | r'| j }|r"t|tr|S z	t| d W S  ty!   Y dS w | j} | sdS )z3Return the first leaf that precedes `node`, if any.N)ri   rS   r   listleaves
IndexErrorrb   )rD   resrP   rP   rQ   rj     s   
rj   tokensc                 C   sJ   |sdS |d du r| du S | sdS | j |d krdS t| j|dd S )a;  Return if the `node` and its previous siblings match types against the provided
    list of tokens; the provided `node`has its type matched against the last element in
    the list.  `None` can be used as the first element to declare that the start of the
    list is anchored at the start of its parent's children.Tr   NF)rH   prev_siblings_areri   )rD   r   rP   rP   rQ   r     s   r   c                 C   s   | du s	| j du rdS | j jS )z|
    Returns:
        @node.parent.type, if @node is not None and has a parent.
            OR
        None, otherwise.
    N)rb   rH   rD   rP   rP   rQ   rt     s   rt   ancestor
descendantc                 C   s*   |}|r|j | kr|j }|r|j | ks	|S )z:Return the child of `ancestor` that contains `descendant`.)rb   )r   r   rD   rP   rP   rQ   child_towards  s
   r   	old_child	new_childc                 C   s2   | j }|sdS |  }|dur||| dS dS )z
    Side Effects:
        * If @old_child.parent is set, replace @old_child with @new_child in
        @old_child's underlying Node structure.
            OR
        * Otherwise, this function does nothing.
    N)rb   removeinsert_child)r   r   rb   	child_idxrP   rP   rQ   replace_child  s   r   c                 C   sr   | j }| }|r7|j}|du r	 |S |jd j |kr	 |S |jtjkr%	 |S |jdur3|jjtv r3	 |S |}|s|S )zReturn `leaf` or one of its ancestors that is the topmost container of it.

    By "container" we mean a node where `leaf` is the very first child.
    Nr   )rr   rb   rT   rH   r   
file_inputri   r?   )r[   same_prefix	containerrb   rP   rP   rQ   container_of  s&   	r   c                 C   s&   t | tr| S | jrt| jd S dS )z(Returns the first leaf of the node tree.r   N)rS   r   rT   first_leaf_ofr   rP   rP   rQ   r     s
   
r   c                 C   s   | j tjtjtjtjhv S )z?Whether node is an arithmetic or a binary arithmetic expression)rH   r   
arith_expr
shift_exprxor_exprand_exprr   rP   rP   rQ   is_arith_like  s   r   c                 C   s   | j tjkrdS t| j}t|drdS tj|v r7| j	r7| j	j t
jkr7| j	js7| j	j	r7| j	j	j t
jkr7dS t| j	d tjtjt
jgrFdS t| j	t
jtjt
jgrTdS dS )NFbBfFT)rH   r   r   r   rc   setintersectionr   unify_docstring_detectionrb   r   simple_stmtri   r   r   NEWLINEINDENTro   re   )r[   r]   rr   rP   rP   rQ   is_docstring  s,   

r   c                 C   s>   | j tjkot| jdko| jd j tjko| jd j tjkS )z+Return True if `node` holds an empty tuple.   r   r   )rH   r   r   lenrT   r   r{   r|   r   rP   rP   rQ   is_empty_tuple6  s   r   c                 C   sv   | j tjkr&t| }|du s|j tjkrdS t|jdko%|jd j tjkS | j t	v o:t| jdko:| jd j tjkS )zMReturn True if `node` holds a tuple with one element, with or without parens.NFr   r   )
rH   r   r   unwrap_singleton_parenthesistestlist_gexpr   rT   r   rk   r;   rD   gexprP   rP   rQ   is_one_tuple@  s    
r   c                 C   sD   | j tjkrdS t| }|du s|j tjkrdS tdd |jD S )zDReturn True if `node` holds a tuple that contains a walrus operator.FNc                 s   s    | ]	}|j tjkV  qd S N)rH   r   namedexpr_test).0rU   rP   rP   rQ   	<genexpr>X  s    z-is_tuple_containing_walrus.<locals>.<genexpr>)rH   r   r   r   r   anyrT   r   rP   rP   rQ   is_tuple_containing_walrusP  s   r   openingclosingr   bracketsc           	      C   s   | j |j f|kr
dS |jd }t|D ]
\}}|| u r nqtdd}|d7 }||d D ]2}||u r9 |dk S |j}||kr`|j tjkr`|d7 }|jr`|jj tjtj	hv r`|d7 } |dk S q.|dk S )zIReturn True if content between `opening` and `closing` is a one-sequence.Fr   z#Opening paren not found in `leaves`r   Nr   )
rH   bracket_depth	enumerateLookupErrorr   rk   rb   r   rm   rq   )	r   r   r   r   depth_opening_indexr[   commasr   rP   rP   rQ   is_one_sequence_between[  s4   
 r   c                 C   s   t | }|duo|jtjkS )z7Return True iff `node` is of the shape ( test := test )N)r   rH   r   r   )rD   innerrP   rP   rQ   is_walrus_assignment  s   r   Flastc                 C   s   | j tjkoTt| jdko| jd j tjko| jd j tjkpT|o9t| jdko9| jd j tjko9| jd j tj	kpT|oTt| jdkoT| jd j tjkoT| jd j tj	kS )z?Return True iff `node` is a trailer valid in a simple decoratorr   r   r   r   )
rH   r   rz   r   rT   r   r}   r   r{   r|   )rD   r   rP   rP   rQ   is_simple_decorator_trailer  s(   r   c                 C   sp   | j tjkrdS | j tjkr6| jr6| jd j tjko5ttt| jdd o5t	| jdk p5t| jd ddS dS )a\  Return True iff `node` could be a 'dotted name' decorator

    This function takes the node of the 'namedexpr_test' of the new decorator
    grammar and test if it would be valid under the old decorator grammar.

    The old grammar was: decorator: @ dotted_name [arguments] NEWLINE
    The new grammar is : decorator: @ namedexpr_test NEWLINE
    Tr   r   r   r   )r   F)
rH   r   r   r   powerrT   allmapr   r   r   rP   rP   rQ   is_simple_decorator_expression  s   	r   c                 C   sx   | j tjkrdS t| r| jdkrdS | j tjkrdS t| jdkr$dS | j\}}}|j tj	kr:|j tj
kr:t|S dS )zAReturn True if `node` holds a `yield` or `yield from` expression.TyieldFr   )rH   r   
yield_expris_name_tokenrc   r   r   rT   r   r{   r|   is_yield)rD   lparexprrparrP   rP   rQ   r     s   r   r`   c                 C   s@   | j tvs| js
dS | j}|j tjkr|jsdS |j}|j |v S )aF  Return True if `leaf` is a star or double star in a vararg or kwarg.

    If `within` includes VARARGS_PARENTS, this applies to function signatures.
    If `within` includes UNPACKING_PARENTS, it applies to right hand-side
    extended iterable unpacking (PEP 3132) and additional unpacking
    generalizations (PEP 448).
    F)rH   r&   rb   r   ru   )r[   r`   r   rP   rP   rQ   rv     s   
rv   c                 C   s   t | jo	d| jv S )zKReturn True if `leaf` is a multiline string that actually spans many lines.r   )r   rc   r[   rP   rP   rQ   is_multiline_string  s   r   c                 C   s8   | j tjtjhv sJ | jd usJ | jj tjtjhv S r   )rH   r   suiter   rb   funcdefr   r   rP   rP   rQ   is_parent_function_or_class  s   r   c                 C   s   | j tjtjtjhv S r   )rH   r   r   r   async_funcdefr   rP   rP   rQ   is_function_or_class     r   c                 C   s   | j durt| sdS | j rdS t| jdks4| jd jtjks4| jd jtj	ks4| jd jtj
kr6dS | jd j r@dS t| jd S )z2Return True if `node` is a suite with a stub body.NF   r   r   r   r   )rb   r   rr   stripr   rT   rH   r   r   r   DEDENTis_stub_bodyr   rP   rP   rQ   is_stub_suite  s   
r   c                 C   sp   t | tr| jtjkrdS t| jdkrdS | jd }|j  o7|jtj	ko7t|jdko7t
dd |jD S )zCReturn True if `node` is a simple statement containing an ellipsis.Fr   r   r   c                 s   s     | ]}|t tjd kV  qdS ).N)r   r   r}   )r   r[   rP   rP   rQ   r     s    zis_stub_body.<locals>.<genexpr>)rS   r   rH   r   r   r   rT   rr   r   r   r   )rD   rU   rP   rP   rQ   r     s   

r   c                 C   sp   t | ts| jtjkrdS | jd | jd }}t |to7|jtjko7|jdko7t |to7|jtj	ko7|jdkS )zGiven a `LN`, determines whether it's an atom `node` with invisible
    parens. Useful in dedupe-ing and normalizing parens.
    Fr   r   r^   )
rS   r   rH   r   r   rT   r   r{   rc   r|   )rD   firstr   rP   rP   rQ   is_atom_with_invisible_parens  s   


r   c                 C   s   t | pt| S r   )is_empty_lparis_empty_rparr   rP   rP   rQ   is_empty_par.  s   r   c                 C      | j tjko
| jdkS Nr^   )rH   r   r{   rc   r   rP   rP   rQ   r   2  r   r   c                 C   r   r   )rH   r   r|   rc   r   rP   rP   rQ   r   6  r   r   c                 C   sP   | j }| j}| j}t|tjko&|dkr|r|jtjkp&|dko&|o&|jtjkS )z9Return True if the given leaf starts an import statement.ra   from)	rb   rH   rc   boolr   r   r   import_namer   )r[   r   r   r   rP   rP   rQ   	is_import:  s   
r   c                 C   sR   t | jtjko| jdko| jo| jjtjkp(t | jtjko'| j	o'| j	jtjkS )zDReturn True if the given leaf starts a with or async with statement.with)
r   rH   r   r   rc   rb   r   	with_stmtASYNCnext_siblingr   rP   rP   rQ   is_with_or_async_with_stmtH  s   r  c                 C   s*   t | jtjko| jo| jjtjtjhv S )zReturn True if the given leaf starts an async def/for/with statement.

    Note that `async def` can be either an `async_stmt` or `async_funcdef`,
    the latter is used when it has decorators.
    )r   rH   r   r   rb   r   
async_stmtr   r   rP   rP   rQ   is_async_stmt_or_funcdefV  s   r  c                 C   s$   | j }| j}|tjthv o|dS )aB  Return True if the given leaf is a type comment. This function should only
    be used for general type comments (excluding ignore annotations, which should
    use `is_type_ignore_comment`). Note that general type comments are no longer
    used in modern version of Python, this function may be deprecated in the future.z# type:)rH   rc   r   rd   r   
startswithr[   r   r   rP   rP   rQ   is_type_commentc  s   r  c                 C   s"   | j }| j}|tjthv ot|S )zGReturn True if the given leaf is a type comment with ignore annotation.)rH   rc   r   rd   r   is_type_ignore_comment_stringr  rP   rP   rQ   is_type_ignore_commentm  s   r	  rc   c                 C   s
   |  dS )zSReturn True if the given string match with type comment with
    ignore annotation.z# type: ignore)r  )rc   rP   rP   rQ   r  t  s   
r  )visiblerb   rU   r
  c                C   sh   t tj|rdnd}t tj|rdnd}|j}d|_| pd}ttj|||g}||_| 	|| dS )zWrap `child` in parentheses.

    This replaces `child` with an atom holding the parentheses and the old
    child.  That requires moving the prefix.

    If `visible` is False, the leaves will be valueless (and thus invisible).
    (r^   )r   N)
r   r   r{   r|   rr   r   r   r   r   r   )rb   rU   r
  r   r   rr   indexr   rP   rP   rQ   wrap_in_parenthesesz  s   r  c                 C   s>   t | jdkr	dS | j\}}}|jtjkr|jtjksdS |S )zqReturns `wrapped` if `node` is of the shape ( wrapped ).

    Parenthesis can be optional. Returns None otherwiser   N)r   rT   rH   r   r{   r|   )rD   r   wrappedr   rP   rP   rQ   r     s   r   c                 C   s0   | j tjkrd| _dS | j tjkrd| _dS dS )zMake sure parentheses are visible.

    They could be invisible as part of some statements (see
    :func:`normalize_invisible_parens` and :func:`visit_import_from`).
    r  r  N)rH   r   r{   rc   r|   r   rP   rP   rQ   ensure_visible  s
   

r  nlc                 C      | j tjkS r   )rH   r   r   r  rP   rP   rQ   r        r   c                 C   r  r   )rH   r   r{   r  rP   rP   rQ   is_lpar_token  r  r  c                 C   r  r   )rH   r   r|   r  rP   rP   rQ   is_rpar_token  r  r  c                 C   r  r   )rH   r   r   r  rP   rP   rQ   is_string_token  r  r  c                 C   r  r   )rH   r   r   r  rP   rP   rQ   is_number_token  r  r  c                 C   sP   | j }|dur&|jr|jjtjkrdS |j r|j jtjkrdS |j }|dusdS )z6Returns whether this leaf is part of type annotations.NTF)rb   ri   rH   r   RARROWr   tname)r[   r   rP   rP   rQ   is_part_of_annotation  s   r  c                 C   &   t | tr| S | jsdS t| jd S )z,Returns the first leaf of the ancestor node.Nr   )rS   r   rT   
first_leafr   rP   rP   rQ   r    
   
r  c                 C   r  )z+Returns the last leaf of the ancestor node.Nr   )rS   r   rT   	last_leafr   rP   rP   rQ   r    r  r  c                 C   sJ   | }|j r#|j jr#||j jd u r#|j }|j r#|j jr#||j jd u s|S )zGReturns the furthest ancestor that has this leaf node as the last leaf.r   )rb   rT   )r[   rD   rP   rP   rQ    furthest_ancestor_with_last_leaf  s
   r   )r   )F)rY   systypingr   r   r   r   r   r   r   r	   r
   version_infor   typing_extensionsmypy_extensionsr   black.cacher   
black.moder   r   black.stringsr   r   blib2to3r   blib2to3.pgen2r   blib2to3.pytreer   r   r   r   
initializepython_symbolsr   __annotations__r   rZ   intLeafIDNodeTyper   r   r   r   if_stmt
while_stmtfor_stmttry_stmtr   r   r   r   
match_stmt
case_blockr   r   rI   r"   LESSGREATEREQEQUALNOTEQUAL	LESSEQUALGREATEREQUALr#   VBAR
CIRCUMFLEXAMPER	LEFTSHIFT
RIGHTSHIFTPLUSMINUSrs   SLASHDOUBLESLASHPERCENTrx   TILDEr   r$   r%   r&   rm   rn   rz   rq   rp   r'   r   r   	listmakerr   testlist_star_exprsubject_exprpatternr(   testlambdefor_testand_testnot_test
comparisonru   r   r   r   r   r   termr   r   r)   r  
tname_starr*   r:   testlistexprlistr;   r{   r|   r~   RSQBLBRACERBRACEr<   r   keysr=   valuesr>   r?   rk   r@   r  rC   r   rJ   r   r   rj   r   rt   r   r   r   r   r   r   r   r   r   r   r   r   r   r   rv   r   r   r   r   r   r   r   r   r   r   r  r  r  r	  r  r  r   r  r   r  r  r  r  r  r  r  r   rP   rP   rP   rQ   <module>   sD   ,


	
" j"

 



%
 

