grthtrhthjhtyjytjytkergtrhtrjytjerhrfh3 \8ã@sfdZddlmZddlmZddlmZmZmZm Z m Z ddl m Z ddlmZGdd„dejƒZd S) aFixer 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. é)Útoken)Ú fixer_base)ÚNameÚArgListÚCallÚListCompÚin_special_context)Úpython_symbols)ÚNodec@s eZdZdZdZdZdd„ZdS)ÚFixMapTaL 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*] > zfuture_builtins.mapcCs¨|j|ƒrdSg}d|kr:x|dD]}|j|jƒƒq$W|jjtjkrv|j|dƒ|jƒ}d|_t t dƒ|gƒ}�n&d|krºt |djƒ|djƒ|djƒƒ}t tj |g|dd �}nâd |krÖ|d jƒ}d|_n¢d |k�rj|d }|jtjk�rL|jd jtjk�rL|jd jdjtjk�rL|jd jdjdk�rL|j|dƒdSt tj t dƒ|jƒgƒ}d|_t|ƒ�rxdSt tj t dƒt|gƒg|ƒ}d|_|j|_|S)NZextra_trailerszYou should use a for loop hereÚÚlistZ map_lambdaZxpÚfpÚit)ÚprefixZmap_noneÚargÚargsééÚNonezjcannot convert map(None, ...) with multiple arguments because map() now truncates to the shortest sequenceÚmap)Z should_skipÚappendZcloneÚparentÚtypeÚsymsZ simple_stmtZwarningrrrrr ZpowerZtrailerZchildrenZarglistrÚNAMEÚvaluerr)ÚselfZnodeZresultsZtrailersÚtÚnewr©r ú-/usr/lib64/python3.6/lib2to3/fixes/fix_map.pyÚ transform@sF        zFixMap.transformN)Ú__name__Ú __module__Ú __qualname__Z BM_compatibleZPATTERNZskip_onr"r r r r!r sr N)Ú__doc__Zpgen2rr rZ fixer_utilrrrrrZpygramr rZpytreer ZConditionalFixr r r r r!Ús