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�mec@sudZddlmZddlmZddlmZmZmZm	Z	ddl
mZdej
fd��YZdS(	sFixer 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.
i(ttoken(t
fixer_base(tNametCalltListComptin_special_context(tpython_symbolstFixMapcBs#eZeZdZdZd�ZRS(s�
    map_none=power<
        'map'
        trailer< '(' arglist< 'None' ',' arg=any [','] > ')' >
    >
    |
    map_lambda=power<
        'map'
        trailer<
            '('
            arglist<
                lambdef< 'lambda'
                         (fp=NAME | vfpdef< '(' fp=NAME ')'> ) ':' xp=any
                >
                ','
                it=any
            >
            ')'
        >
    >
    |
    power<
        'map' trailer< '(' [arglist=any] ')' >
    >
    sfuture_builtins.mapcCs�|j|�rdS|jjtjkrh|j|d�|j�}d|_tt	d�|g�}n	d|kr�t
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�dSnt|�rDdS|j�}d|_tt	d�|g�}|j|_|S(NsYou should use a for loop hereuulistt
map_lambdatxptfptittmap_nonetargtarglistitNonesjcannot convert map(None, ...) with multiple arguments because map() now truncates to the shortest sequence(tshould_skiptparentttypetsymstsimple_stmttwarningtclonetprefixRRRRtchildrenRtNAMEtvalueRR(tselftnodetresultstnewtargs((s-/usr/lib64/python2.7/lib2to3/fixes/fix_map.pyt	transform;s6	

	(t__name__t
__module__tTruet
BM_compatibletPATTERNtskip_onR (((s-/usr/lib64/python2.7/lib2to3/fixes/fix_map.pyRsN(t__doc__tpgen2RtRt
fixer_utilRRRRtpygramRRtConditionalFixR(((s-/usr/lib64/python2.7/lib2to3/fixes/fix_map.pyt<module>s
"