3
.Wɐ                 @   sx  d dl mZmZ d dlmZmZ yd dl mZ W n ek
rL   ddlZY nX ddl	Z	ddl
Z
ddlZy(ejdk r|ddlZnddlZej ZW n ek
r   dZY nX e
jde
je
jB Ze
jde
je
jB Ze
jd	Ze
jd
Ze
jdZe
jdZdae
jde
jZe
jdZe
jdZe
jdZe
jdZ e
jdZ!dd Z"dd Z#dd Z$dd Z%dd Z&G dd de'Z(dS )    )apimodel)COMMON_TYPESresolve_common_type)
_pycparser    N   z/\*.*?\*/|//([^\n\\]|\\.)*?$z?^\s*#\s*define\s+([A-Za-z_][A-Za-z_0-9]*)\b((?:[^\n\\]|\\.)*?)$z=\s*\.\.\.\s*[,}]|\.\.\.\s*\}z__dotdotdot\d+__$z\[\s*\.\.\.\s*\]z\w+|\Sz-?0?x?[0-9a-f]+[lu]*$z\b(__stdcall|WINAPI)\bz[(]\s*(__stdcall|WINAPI)\bz\b__cdecl\bz9\bextern\s*"(Python|Python\s*\+\s*C|C\s*\+\s*Python)"\s*.z'[*]\s*((const|volatile|restrict)\b\s*)+c               C   s   t d krtj a t S )N)_parser_cache	pycparserZCParser r   r   L/var/www/html/enquirykeeper_venv/lib/python3.6/site-packages/cffi/cparser.py_get_parser%   s    r   c             C   s  g }xt j| }|sP |j| d |j   |jd d}|j|j  |j }| jd|rn|jd |d7 }d}|}x`|t| k r| | }|dkr|d7 }n.|dkr|dkrP |d8 }n|dkr|dkrP |d7 }qxW | || | | |d   } qW |j|  dj|S )N()*r   r   z,;= )	_r_star_const_spacesearchappendstartgroupend
startswithlenjoin)csourcepartsmatchclosingendposlevelicr   r   r   _workaround_for_old_pycparser+   s<    

 
 

 
r#   c             C   s4  g }xt j| }|sP |j d }|j| d |j   d|jdkrT|jd n
|jd | | dkr| jd|}|dk rtjd| jd|d |dkrt	d	|j| |d |  | |d d  } nD| jd
|}|dk rtjd|j| ||d   | |d d  } |jd qW |j|  dj
|S )Nr   Cz(void __cffi_extern_python_plus_c_start; z!void __cffi_extern_python_start; {}r   z!'extern "Python" {': no '}' foundz7cannot use { } inside a block 'extern "Python" { ... }';z'extern "Python": no ';' foundz  void __cffi_extern_python_stop;r   )_r_extern_pythonr   r   r   r   r   findr   	CDefErrorNotImplementedErrorr   )r   r   r   r   r   Z	semicolonr   r   r   _preprocess_extern_pythonU   s4    




r,   c       	      C   sj  t jd| } i }x6tj| D ](}|j \}}|jddj }|||< qW tjd| } tjdk rft	| } t
jd| } tjd| } tjd| } t| } tjd| } ttj| }xtt|D ]\}}|j }| | dkr| jd	||j }||kstd
| d | || |d d  f } q| ||d  d	ks4td| d | || |d d  f } qW | jd	d|fS )N z\
r   z2.14z volatile volatile const(z volatile volatile const z[__dotdotdotarray__]=z...z%s,__dotdotdot%d__ %sr   z%s __dotdotdot%d__ %sz __dotdotdot__ )
_r_commentsub	_r_definefinditergroupsreplacestripr
   __version__r#   _r_stdcall2_r_stdcall1_r_cdeclr,   _r_partial_arraylist_r_partial_enum	enumeratereversedr   r)   r   AssertionError)	r   macrosr   Z	macronameZ
macrovaluematchesnumberpp2r   r   r   _preprocess   s4    
rE   c             C   s   t t}|jd |jd |jd |jd |jd t  }d}d}d}xtj| D ]}||kr|dkr|r|j| |j| d}nj|dkrd	}d}nX|dkr|d
7 }nF|dkr|d
8 }n4|dkr|r|dkr|j| |j| n
|j| |}qXW |S )Nr'   ,r   r   typedefFr   r   Tr   )setr   add_r_wordsfindalldiscard)r   Zlook_for_wordsZ
words_usedZ
is_typedefZparenZprevious_wordwordr   r   r   _common_type_names   s>    










rN   c               @   s   e Zd Zdd Zdd Zdd Zdd Zd6d
dZdd Zdd Z	dd Z
dd Zdd Zdd Zdd Zdd Zd7ddZdd  Zd8d"d#Zd9d$d%Zd:d&d'Zd(d) Zd;d*d+Zd,d- Zd<d.d/Zd0d1 Zd2d3 Zd4d5 Zd!S )=Parserc             C   s:   i | _ t | _d| _tj | _i | _i | _g | _	d | _
d S )Nr   )_declarationsrH   _included_declarations_anonymous_counterweakrefWeakKeyDictionary_structnode2type_options_int_constants_recomplete_uses_new_feature)selfr   r   r   __init__   s    
zParser.__init__c       	      C   s  t |\}}t|}g }x<t| jD ].}|jdr$|dd  }|j| |j| q$W |t|7 }dd |D }|jd |j| dj|}td k	rtj	  zHyt
 j|}W n2 tjjk
r } z| j|| W Y d d }~X nX W d td k	rtj  X |||fS )Nztypedef    c             S   s   g | ]}d | qS )ztypedef int %s;r   ).0typenamer   r   r   
<listcomp>   s    z!Parser._parse.<locals>.<listcomp>ztypedef int __dotdotdot__;
)rE   rN   sortedrP   r   r   rL   r   lockacquirer   parser
   Zc_parser
ParseErrorconvert_pycparser_errorrelease)	rZ   r   r@   Zctn	typenamesnamecsourcelinesaster   r   r   _parse   s,    




"
zParser._parsec             C   s   d }t |}|jdr|d|dd  kr||d|jdd }|j r|t|d}|j }d|  kojt|kn  r|||d  }|S )N:r   
   )strr   r)   isdigitint
splitlinesr   )rZ   rl   r   linemsgZlinenumrj   r   r   r   _convert_pycparser_error  s    
zParser._convert_pycparser_errorc             C   sB   | j ||}t|}|r*d|j |f }n
d|f }tj|d S )Nzcannot parse "%s"
%szparse error
%s)rv   rp   r5   r   r*   )rZ   rl   r   rt   ru   r   r   r   rf     s    
zParser.convert_pycparser_errorFc             C   s0   | j }z|||d| _ | j| W d || _ X d S )N)overridepacked	dllexport)rV   _internal_parse)rZ   r   rw   rx   ry   Zprev_optionsr   r   r   rd   %  s    
zParser.parsec       
      C   s  | j |\}}}| j| t|j}x|D ]}|jdkr*P q*W y$d| _x|D ]}t|tjj	rp| j
| qPt|tjjrR|jstjd|d}t|jjtjjr|jjjd dkr| j|}ntt|jtjjr$t|jjtjjr$t|jjjtjjr$|jjjjdgkr$tj|j}n| j|j|jd\}}| jd|j ||d qPtjd	|qPW W nP tjk
r } z0| j||}	|	r|jd d
|	  f|_ W Y d d }~X nX d S )N__dotdotdot____cffi_extern_python_stopz!typedef does not declare any namer   r   )ri   ztypedef )qualszunrecognized constructz
    *** Err: %s)rm   _process_macrositerextri   _inside_extern_python
isinstancer
   c_astZDecl_parse_declZTypedefr   r*   typeIdentifierTypenames_get_unknown_typePtrDeclTypeDeclr   Zunknown_ptr_type_get_type_and_quals_declareFFIErrorrv   args)
rZ   r   rk   r@   iteratordeclr}   Zrealtyperl   ru   r   r   r   rz   /  sD    




zParser._internal_parsec             C   s:   || j kr,| j | |krd S tjd|f || j |< d S )Nz%multiple declarations of constant: %s)rW   r   r   )rZ   keyvalr   r   r   _add_constantsY  s    
zParser._add_constantsc             C   s   |j  jd}|jd}|r(|dd  }|jdrV|dkrV|jd rVd|dd   }t|d}|rj| }| j|| | jd| | d S )	NZul-r   00xZ0or   zmacro )lowerrstripr   rr   r   r   )rZ   ri   Zint_strnegZpyvaluer   r   r   _add_integer_constanta  s    

zParser._add_integer_constantc             C   sj   xd|j  D ]X\}}|j }tj|r2| j|| q
|dkrL| jd| | q
tjd||||f q
W d S )Nz...zmacro zonly supports one of the following syntax:
  #define %s ...     (literally dot-dot-dot)
  #define %s NUMBER  (with NUMBER an integer constant, decimal/hex/octal)
got:
  #define %s %s)itemsr5   _r_int_literalr   r   r   r   r*   )rZ   r@   r   valuer   r   r   r   p  s    
zParser._process_macrosc             C   sX   | j ||}| jjdrd}n$| jdkr.d}n| jdkr>d}nd}| j||j | d S )Nry   zdllexport_python Z__cffi_extern_python_startzextern_python Z!__cffi_extern_python_plus_c_startzextern_python_plus_c z	function )_get_type_pointerrV   getr   r   ri   )rZ   tpr}   r   tagr   r   r   _declare_function  s    

zParser._declare_functionc             C   s  |j }t|tjjrJ| j||jd\}}t|tjs8t	| j
||| nt|tjjrf| jd| nJt|tjjr| jd| n.t|tjjr| jd| n|jstjd||jr| j|dd\}}|jr| j
||| n,|j r*t|dr*t|jd	r*tj|jjr*| j|j|jj n|j rt|jtjjr|jjd
krt|jjd	rtj|jjjr| j|jd
|jjj  n~|tjkr|jjdr|j| _nZ| jdkrtjd|tj@ r|j  r| j!d|j ||d n| j!d|j ||d d S )N)ri   structunionenumz'construct does not declare any variableT)partial_length_okinitr   r   Z__cffi_extern_python_r|   z<cannot declare constants or variables with 'extern "Python"'z	constant )r}   z	variable )"r   r   r
   r   FuncDeclr   ri   r   RawFunctionTyper?   r   Struct_get_struct_union_enum_typeUnionEnumr   r*   Zis_raw_functionZis_integer_typehasattrr   r   r   r   r   UnaryOpopexpr	void_typer   r   Q_CONSTZis_array_typer   )rZ   r   noder   r}   r   r   r   r     sP    


zParser._parse_declc             C   s   | j |d S )Nr   )parse_type_and_quals)rZ   cdeclr   r   r   
parse_type  s    zParser.parse_typec             C   sd   | j d| d d \}}| s$t|jd jjjd }t|tjj	rXt
jd|jf | j|jS )Nzvoid __dummy(
%s
);   r   r   zunknown identifier '%s'r~   )rm   r?   r   r   r   paramsr   r
   r   IDr   r*   ri   r   )rZ   r   rk   r@   exprnoder   r   r   r     s    
zParser.parse_type_and_qualsr   c             C   sz   || j krH| j | \}}||kr,||kr,d S | jjdsHtjd|f d|j ksXt||f| j |< |rv| jj| d S )Nrw   zPmultiple declarations of %s (for interactive usage, try cdef(xx, override=True))r{   )	rP   rV   r   r   r   splitr?   rQ   rI   )rZ   ri   objincludedr}   ZprevobjZ	prevqualsr   r   r   r     s    

zParser._declarec             C   sZ   d}t |tjjtjjfrVd|jkr.|tjO }d|jkrB|tjO }d|jkrV|tj	O }|S )Nr   constvolatileZrestrict)
r   r
   r   r   r   r}   r   r   Z
Q_VOLATILEZ
Q_RESTRICT)rZ   r   r}   r   r   r   _extract_quals  s    






zParser._extract_qualsNc             C   sj   t |tjr|j S t |tjr^|jjdr^|jdd  j r^|jd kr^|d k	r^tj	|||S tj
||S )N$r   )r   r   r   as_function_pointerZStructOrUnionOrEnumri   r   rq   	forcenameZNamedPointerTypePointerType)rZ   r   r}   declnamer   r   r   r     s    zParser._get_type_pointerc             C   sL  t |tjjrtt |jtjjrtt|jjdkrtd|jjd  | jkrt| jd|jjd   \}}|| j	|O }||fS t |tjj
r|jd krd }n| j|j|d}| j|j|d\}}tj|||fS t |tjjr| j|j\}}| j|||d}| j	|}||fS t |tjjr| j	|}|j}	t |	tjjrXt|	j}
|
ddgkri }x<|
r|
d }|dkr|j|dd ||< |
d= nP qVW g }x4dD ],}x$t|j|dD ]}|j| qW qW |
sdg}
|
dgkrd|ksd	|krg }
||
 }
dj|
}|dkr"tj|fS |dkr>tjd|jj t| |\}}|||B fS t |	tjjr~| jd|	|}||fS t |	tjjr| jd|	|}||fS t |	tjj r| jd|	|}||fS t |tjj!r| j"||dfS t |tjjr| jd||dddfS t |tjjr6| jd||dddfS tjd|jj d S )Nr   ztypedef r   )r   )r   signedcharshortlongunsignedrr   r-   voidr{   z:%d: bad usage of "..."r   r   r   T)nestedz(:%d: bad or unsupported type declaration)r   r   r   r   )r   r   r   )#r   r
   r   r   r   r   r   r   rP   r   Z	ArrayDeclZdim_parse_constantr   r   	ArrayTyper   r   r;   r   ranger   r   r   r   r   coordrt   r   r   r   r   r   r   _parse_function_type)rZ   typenoderi   r   r   r}   lengthZitemtypeZ	itemqualsr   r   prefixesZnewnamesprefixr!   identZtp0Zquals0r   r   r   r     s    











zParser._get_type_and_qualsc          	      s@  t t|jdg }xBt|D ]6\}}t|dstjd|p:d|d t|ddf qW t|dkot|d j	t
jjot|d j	j	t
jjo|d j	j	jd	gk}|r|j  |stjd
|pd  fdd|D }| r|tjgkrg } j|j	\}}	d }
t|j	dr,|j	jdd  dddgkr,d}
tjt||||
S )Nr   r   zt%s arg %d: unknown type '%s' (if you meant to use the old C syntax of giving untyped arguments, it is not supported)zin expressionr   ri   ?r   r{   z=%s: a function with only '(...)' as argument is not correct Cc                s   g | ]} j  j|j qS r   )_as_func_argr   r   )r]   Zargdeclnode)rZ   r   r   r_   `  s   z/Parser._parse_function_type.<locals>.<listcomp>r}   r   r   r   Z	__stdcallr~   r~   r~   )r;   getattrr   r=   r   r   r*   r   r   r   r
   r   r   r   r   popr   r   r   r}   r   tuple)rZ   r   funcnamer   r!   argZellipsisr   resultr}   abir   )rZ   r   r   K  s6    


zParser._parse_function_typec             C   s6   t |tjrtj|j|S t |tjr.|j S |S d S )N)r   r   r   r   itemr   r   )rZ   r   r}   r   r   r   r   n  s
    zParser._as_func_argc             C   s.  y
| j | S  tk
r   Y nX |}|j}|d krb|d k	rDd| }n|  jd7  _d| j }d }n"|}d||f }| jj|d\}}	|d kr|dkrtj|d d d }nP|dkrtj|d d d }n6|dkr|dkrt	d	| j
||j}ntd
|f |d k	r2| j|| n"|dkr2|jd k	r2td| |jsD|j| |jrjd|jkrj| jd|j | || j |< |dkr|S |jd kr|S |jd k	rtj	d| g }
g }g }g }x|jD ]}t|jtjjrdj|jjdkr| j|| q|jd krd}n| j|j}d| _| j|jdd\}}| jrJ| j|| t|tjrl|j rl| j|| |
j!|jpzd |j!| |j!| |j!| qW t"|
|_t"||_#t"||_$t"||_%|dgt&| krt|tjr|j rtd|f | j'jd|_(|j)r*d|_)| j*j!| |S )Nz$%sr   z$%dz%s %sr   r   r   r{   z!Enums cannot be declared with ...z	kind = %rz^enum %s: the '{}' declaration should appear on the first time the enum is mentioned, not laterr   zanonymous %sz"duplicate declaration of struct %sr   FT)r   z#%s: using both bitfields and '...;'rx   r   )NNr~   r~   )+rU   KeyErrorri   rR   rP   r   r   Z
StructTypeZ	UnionTyper*   _build_enum_typevaluesr?   r   r+   r   Zforce_the_namedeclsfldnamesr   r   r   r
   r   r   r   r   _make_partialbitsizer   _partial_lengthr   partialr   r   fldtypes
fldbitsizefldqualsr   rV   rx   Z	completedrX   )rZ   kindr   ri   r   Z
force_nameexplicit_namer   r   _r   r   r   r   r   r   Zfqualr   r   r   r   v  s    	















z"Parser._get_struct_union_enum_typec             C   sD   t |tjstjd|f |j  r:| r:td|f d|_d S )Nz%s cannot be partialz%s is partial but has no C nameT)r   r   ZStructOrUnionr   r*   Z
has_c_namer+   r   )rZ   r   r   r   r   r   r     s
    zParser._make_partialc             C   s~  t |tjjr|j}|jdrF|jds2|jdr<t|dS t|dS d|d   ko\dkn  rlt|d	S |d d
kr|d d
krt|dkst|dkr|d dkrt|d S t	j
d|f t |tjjr|jdkr| j|jS t |tjjr|jdkr| j|j S t |tjjr<|j| jkr<| j|j S |rht |tjjrh|jdkrhd| _dS t	jd|jj d S )Nr   r   Z0X   r\   1r   9ro   'r   r      \r   zinvalid constant %r+r   Z__dotdotdotarray__Tz...z?:%d: unsupported expression: expected a simple numeric constantr~   )r   r
   r   Constantr   r   rr   r   ordr   r*   r   r   r   r   r   ri   rW   r   r   r   rt   )rZ   r   r   sr   r   r   r     s8    



$
zParser._parse_constantc       	      C   s   |d k	rd}g }g }d}xb|j D ]X}tj|jr6d}q |jd k	rL| j|j}|j|j |j| | j|j| |d7 }q W t|}t|}t	j
|||}||_nt	j
|f f }|S )NFr   Tr   )enumerators_r_enum_dotdotdotr   ri   r   r   r   r   r   r   ZEnumTyper   )	rZ   r   r   r   r   Z
enumvaluesZnextenumvaluer   r   r   r   r   r     s*    

zParser._build_enum_typec             C   sz   xP|j j D ]B\}\}}|jdr$q|jddd }|dkr| j||d
|d qW x"|jj D ]\}}| j|| q^W d S )Nzanonymous $enum_$r-   r   r   r   r   r   	anonymousrG   T)r   r}   )r   r   r   r   rG   )rP   r   r   r   r   rW   r   )rZ   otherri   r   r}   r   kvr   r   r   include1  s    
zParser.includec             C   s   |j j j}|d dkstt|dkr2tj|jS |d d dgksV|d d dgkrdtj|j}n<x.|d d D ]}|dkrrtj	d|j
j qrW tj|j}| jd krddj|d d |jf | _|S )Nr   r{   floatZdoublerr   r   r   r   r   r   z:%d: bad usage of "..."z'typedef %s... %s'r-   r~   r~   r~   r~   )rr   r   r   r   r   r   r~   )r   r   r?   r   r   Zunknown_typeri   ZUnknownFloatTyper   r   r   rt   ZUnknownIntegerTyperY   r   )rZ   r   rh   r   tr   r   r   r   ;  s"    

zParser._get_unknown_type)FFF)Fr   )N)NF)N)NF)F)__name__
__module____qualname__r[   rm   rv   rf   rd   rz   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r  r   r   r   r   r   rO      s2   



*2

	
^
#
v
&
rO   )r   ))r   r   r   Zcommontypesr   r   r   r
   ImportErrorrS   resysversion_infothread_threadallocate_lockrb   compileDOTALL	MULTILINEr/   r1   r<   r   r:   rJ   r	   
IGNORECASEr   r8   r7   r9   r(   r   r   r#   r,   rE   rN   objectrO   r   r   r   r   <module>   sF   










*23(