
    ZQd8                     |    d Z ddlmZ ddlmZ ddlmZmZmZm	Z	m
Z
 ddlmZ ddlmZ  G d dej                  Zd	S )
a  Fixer that changes map(F, ...) into list(map(F, ...)) unless there
exists a 'from future_builtins import map' statement in the top-level
namespace.

As a special case, map(None, X) is changed into list(X).  (This is
necessary because the semantics are changed in this case -- the new
map(None, X) is equivalent to [(x,) for x in X].)

We avoid the transformation (except for the special case mentioned
above) if the map() call is directly contained in iter(<>), list(<>),
tuple(<>), sorted(<>), ...join(<>), or for V in <>:.

NOTE: This is still not correct if the original code was depending on
map(F, X, Y, ...) to go on until the longest argument is exhausted,
substituting None for missing values -- like zip(), it now stops as
soon as the shortest argument is exhausted.
   )token)
fixer_base)NameArgListCallListCompin_special_context)python_symbols)Nodec                        e Zd ZdZdZdZd ZdS )FixMapTaL  
    map_none=power<
        'map'
        trailer< '(' arglist< 'None' ',' arg=any [','] > ')' >
        [extra_trailers=trailer*]
    >
    |
    map_lambda=power<
        'map'
        trailer<
            '('
            arglist<
                lambdef< 'lambda'
                         (fp=NAME | vfpdef< '(' fp=NAME ')'> ) ':' xp=any
                >
                ','
                it=any
            >
            ')'
        >
        [extra_trailers=trailer*]
    >
    |
    power<
        'map' args=trailer< '(' [any] ')' >
        [extra_trailers=trailer*]
    >
    zfuture_builtins.mapc                 N   |                      |          rd S g }d|v r2|d         D ])}|                    |                                           *|j        j        t
          j        k    rQ|                     |d           |                                }d|_        t          t          d          |g          }nd|v r{t          |d                                         |d                                         |d                                                   }t          t
          j        |g|z   d	          }n_d
|v r"|d                                         }d|_        nd|v r|d         }|j        t
          j        k    r|j        d         j        t
          j        k    rd|j        d         j        d         j        t"          j        k    r9|j        d         j        d         j        dk    r|                     |d           d S t          t
          j        t          d          |                                g          }d|_        t)          |          rd S t          t
          j        t          d          t+          |g          g|z             }d|_        |j        |_        |S )Nextra_trailerszYou should use a for loop here list
map_lambdaxpfpit)prefixmap_noneargargs       Nonezjcannot convert map(None, ...) with multiple arguments because map() now truncates to the shortest sequencemap)should_skipappendcloneparenttypesymssimple_stmtwarningr   r   r   r   r   powertrailerchildrenarglistr   NAMEvaluer	   r   )selfnoderesultstrailerstnewr   s          ,/usr/lib/python3.11/lib2to3/fixes/fix_map.py	transformzFixMap.transform@   sn   D!! 	Fw&&-. + +		****;t///LL?@@@**,,CCJtF||cU++CCW$$74=..00"4=..00"4=..002 2C tzC58#3B???CC W$$en**,,

W$$"6?DyDL00}Q',<<}Q'038EJFF}Q'039VCCT ,N O O O tzDKK+FGGC!#CJ%d++  4tzDLL'3%..#AH#LMMCCJ[

    N)__name__
__module____qualname__BM_compatiblePATTERNskip_onr3    r4   r2   r   r      s6        MG: $G. . . . .r4   r   N)__doc__pgen2r   r   r   
fixer_utilr   r   r   r   r	   pygramr
   r#   pytreer   ConditionalFixr   r;   r4   r2   <module>rB      s    &             J J J J J J J J J J J J J J + + + + + +      P P P P PZ& P P P P Pr4   