o
    
c8                     @   s@   d dl Z d dlZddlmZ ddlmZ G dd deZdZdS )    N   )modelVerificationErrorc                   @   s  e Zd ZdZdZdd Zdd Zdd Zd	d
 ZdnddZ	dd Z
dd Zdd ZdoddZdd Zdd Zdd Zdd Zdd  Zd!d" Zd#d$ Zd%d& Zd'd( ZeZeZeZeZeZd)d* Zd+d, Zd-d. ZeZd/d0 Z eZ!d1d2 Z"d3d4 Z#d5d6 Z$d7d8 Z%eZ&d9d: Z'd;d< Z(d=d> Z)d?d@ Z*dAdB Z+dCdD Z,dEdF Z-dGdH Z.eZ/dIdJ Z0dKdL Z1dMdN Z2dOdP Z3	Q	R	dpdSdTZ4dUdV Z5dWdX Z6eZ7eZ8eZ9dndYdZZ:d[d\ Z;dqd^d_Z<eZ=eZ>d`da Z?dbdc Z@ddde ZAeZBeZCeZDeZEdfdg ZFdhdi ZGeZHeZIdjdk ZJdldm ZKdS )rVCPythonEnginexTc                 C   s   || _ |j| _i | _i | _d S N)verifierffi_struct_pending_verification_types_of_builtin_functions)selfr	    r   =/opt/certbot/lib/python3.10/site-packages/cffi/vengine_cpy.py__init__   s   
zVCPythonEngine.__init__c                 C      d S r   r   )r   kwdsr   r   r   patch_extension_kwds      z#VCPythonEngine.patch_extension_kwdsc                 C   sP   zt ||\}}}W n
 ty   Y d S w |d ur|  |d |vr&d S |S Nr   )impfind_moduleImportErrorclose)r   module_namepathso_suffixesffilenamedescrr   r   r   r      s   zVCPythonEngine.find_modulec                 C   s   i | _ | d d S )Ncollecttype)
_typesdict	_generater   r   r   r   collect_types$   s   zVCPythonEngine.collect_types c                 C   s   | j |d  d S )N
)_fwrite)r   whatr   r   r   _prnt(      zVCPythonEngine._prntc                 C   s
   | j | S r   )r!   )r   typer   r   r   _gettypenum+   s   
zVCPythonEngine._gettypenumc                 C   s@   t |tjr|jdkr|| jvrt| j}|| j|< d S d S d S )Nlong double)
isinstancer   PrimitiveTypenamer!   len)r   tpnumr   r   r   _do_collect_type/   s   
zVCPythonEngine._do_collect_typec                 C   s  |    ddg| _| j}|t |  || jj |  | d |   |  |d | d |d |d |d |  | j }| jd }|d	 |  |d
 |d |d|  |d |d |d |d |d |  |d |d|  |d |d |d |d |d |d|f  |d |d |d |d |d |  |d |  |d |d|  |d |d |d|  |d |d  |d!|f  |d  |d" |d |  |d# d S )$Nz((void)lib,0)declz&static PyMethodDef _cffi_methods[] = {methodz3  {"_cffi_setup", _cffi_setup, METH_VARARGS, NULL},z)  {NULL, NULL, 0, NULL}    /* Sentinel */z};Fz#if PY_MAJOR_VERSION >= 3z.static struct PyModuleDef _cffi_module_def = {z  PyModuleDef_HEAD_INIT,z  "%s",z  NULL,z  -1,z  _cffi_methods,z  NULL, NULL, NULL, NULLPyMODINIT_FUNCzPyInit_%s(void){z  PyObject *lib;z+  lib = PyModule_Create(&_cffi_module_def);z  if (lib == NULL)    return NULL;z#  if (%s < 0 || _cffi_init() < 0) {z    Py_DECREF(lib);  }z  return lib;}z#elsezinit%s(void)z+  lib = Py_InitModule("%s", _cffi_methods);z    return;z!  if (%s < 0 || _cffi_init() < 0)z	  return;z#endif)	r$   _chained_list_constantsr*   cffimod_headerr	   preambler"   _generate_setup_customget_module_name)r   prntmodname	constantsr   r   r   write_source_to_f6   st   




z VCPythonEngine.write_source_to_fNc              
      s  t   z\ttdrt }z@zttdr|d urt| t j jj	W n t
yB } zdjj	|f }t|d }~ww W ttdrNt| nttdrZt| w w W t   nt   w d tdd j D fddttD }ttjj|}G  fdd	d	t   }|t|rd
d l}|dj   jd|d j_j_|S )Ngetdlopenflagssetdlopenflagszimporting %r: %sloadingc                 S   s   g | ]\}}||fqS r   r   ).0keyvaluer   r   r   
<listcomp>   s    z/VCPythonEngine.load_library.<locals>.<listcomp>c                    s   g | ]} | qS r   r   rI   i)
revmappingr   r   rL          c                       s&   e Zd ZZjZg Z fddZdS )z/VCPythonEngine.load_library.<locals>.FFILibraryc                    s    j t| j S r   )	_cffi_dirlist__dict__r#   )
FFILibraryr   r   __dir__   s   z7VCPythonEngine.load_library.<locals>.FFILibrary.__dir__N)__name__
__module____qualname___cffi_python_moduler
   	_cffi_ffirQ   rU   r   )rT   moduler   r   r   rT      s
    rT   r   z0reimporting %r might overwrite older definitionsloadedlibrary)r   acquire_lockhasattrsysrF   rG   load_dynamicr	   rA   modulefilenamer   r   release_lock_loaddictr!   itemsranger2   rR   mapr
   _get_cached_btypeobject_cffi_setupwarningswarn_cffi_original_ffir   _cffi_types_of_builtin_funcs)r   flagsprevious_flagseerrorlstr^   rm   r   )rT   r[   rO   r   r   load_library   sR   




zVCPythonEngine.load_libraryc                 C   s$   dd | j jj D }|  |S )Nc                 S   s   g | ]
\}\}}||fqS r   r   )rI   rJ   r3   qualr   r   r   rL      s    z4VCPythonEngine._get_declarations.<locals>.<listcomp>)r
   _parser_declarationsrg   sort)r   ru   r   r   r   _get_declarations   s
   z VCPythonEngine._get_declarationsc                 C   s   |   D ]?\}}|dd\}}zt| d||f }W n ty(   td| w z||| W q tyC } zt||  d }~ww d S )N r   z_generate_cpy_%s_%sznot implemented in verify(): %r)r{   splitgetattrAttributeErrorr   	Exceptionr   attach_exception_info)r   	step_namer1   r3   kindrealnamer7   rs   r   r   r   r"      s&   zVCPythonEngine._generatec           
      K   sv   |   D ]4\}}|dd\}}t| d||f }z||||fi | W q ty8 }	 zt|	|  d }	~	ww d S )Nr|   r   z
_%s_cpy_%s)r{   r}   r~   r   r   r   )
r   r[   r   r   r1   r3   r   r   r7   rs   r   r   r   re      s   zVCPythonEngine._loadc                 C   r   r   r   r   r3   r1   r   r   r   _generate_nothing   r   z VCPythonEngine._generate_nothingc                 K   r   r   r   r   r3   r1   r[   r   r   r   r   _loaded_noop   r   zVCPythonEngine._loaded_noopc                 C   s*  d}t |tjr*| r|jdkrd}d|j }nd|d|jddf }d}nJt |tjr:| |||| d S t |tj	tj
frY| d	|| ||f  | d
|  d S t |tjrpd|d }d| | }d}nt|| d||||f  | d||d|f  | d
|  d S )Nr%   _Bool_cffi_to_c_intz, %sz(%s)_cffi_to_c_%sr|   _z-1z6  if (_cffi_to_c((char *)&%s, _cffi_type(%d), %s) < 0)z    %s;z(%s)_cffi_to_c_pointerz, _cffi_type(%d)NULLz  %s = %s(%s%s);z'  if (%s == (%s)%s && PyErr_Occurred()))r/   r   r0   is_integer_typer1   
get_c_namereplacePointerType"_convert_funcarg_to_c_ptr_or_arrayStructOrUnionEnumTyper*   r-   FunctionPtrTypeNotImplementedError)r   r3   fromvartovarerrcodeextraarg	convertererrvaluer   r   r   _convert_funcarg_to_c   s<   
z$VCPythonEngine._convert_funcarg_to_cc                 C   s2   t |tjr|d |d |d d S d S )NzPy_ssize_t datasizez-struct _cffi_freeme_s *large_args_free = NULLzIif (large_args_free != NULL) _cffi_free_array_arguments(large_args_free);)r/   r   r   add)r   r3   	localvars	freelinesr   r   r   _extra_local_variables  s
   

z%VCPythonEngine._extra_local_variablesc                 C   s~   |  d |  d| |||f  |  d |  d|f  |  d| |||f  |  d |  d|  |  d d S )	Nz1  datasize = _cffi_prepare_pointer_call_argument(z(      _cffi_type(%d), %s, (char **)&%s);z  if (datasize != 0) {zE    %s = ((size_t)datasize) <= 640 ? alloca((size_t)datasize) : NULL;zF    if (_cffi_convert_array_argument(_cffi_type(%d), %s, (char **)&%s,z,            datasize, &large_args_free) < 0)z	      %s;r;   )r*   r-   )r   r3   r   r   r   r   r   r   r     s   


z1VCPythonEngine._convert_funcarg_to_c_ptr_or_arrayc                 C   s
  t |tjr/| r|jdkrd||jf S |jdkr&d|jdd|f S d|| |f S t |tjtjfrAd|| |f S t |tj	rTd|| t|j
f S t |tjrr|jd u ritd	| |f d
|| |f S t |tjrd|| |f S t|)Nr   z_cffi_from_c_int(%s, %s)r.   z_cffi_from_c_%s(%s)r|   r   z/_cffi_from_c_deref((char *)&%s, _cffi_type(%d))z0_cffi_from_c_pointer((char *)%s, _cffi_type(%d))z!'%s' is used as %s, but is opaquez0_cffi_from_c_struct((char *)&%s, _cffi_type(%d)))r/   r   r0   r   r1   r   r-   r   r   	ArrayTypeitemr   fldnames	TypeError_get_c_namer   r   )r   r3   varcontextr   r   r   _convert_expr_from_c*  s:   





z#VCPythonEngine._convert_expr_from_cc                 C   sJ   t |tjsJ |jr| | d S |jD ]}| | q| |j d S r   )r/   r   r   ellipsisr5   argsresult)r   r3   r1   r,   r   r   r   "_generate_cpy_function_collecttypeQ  s   
z1VCPythonEngine._generate_cpy_function_collecttypec              
   C   s  t |tjsJ |jr| d|| d S | j}t|j}|dkr#d}n	|dkr*d}nd}|d |d||f  |d	 d
| }t|jD ]\}}|d|	d| |  qEt
 }	t
 }
|jD ]	}| ||	|
 q_t|	D ]	}|d|f  qmt |jtjsd}d| }|d|j	d|  |d nd}t|jdkrtt|j}|D ]}|d|  q|  |dd| |ddd |D f  |d |  t|jD ]\}}| |d| d| d |  q|d |d |d||ddd tt|jD f  |d  |d! |  |d" |dkr|d# |r;|d$| |jd%d&  |
D ]	}|d'|  q,|d( n|
D ]	}|d'|  q=|d) |d* |d+ |  d S ),NFr   noargr   arg0r   static PyObject *z(_cffi_f_%s(PyObject *self, PyObject *%s)r9   zargument of %s  %s;z x%dz	result = zresult of %sz resultz  PyObject *pyresult;r%   z  PyObject *arg%d;z+  if (!PyArg_ParseTuple(args, "%s:%s", %s))Oz, c                 S      g | ]}d | qS )z&arg%dr   rM   r   r   r   rL     rP   z>VCPythonEngine._generate_cpy_function_decl.<locals>.<listcomp>r:   zarg%dx%dzreturn NULLz  Py_BEGIN_ALLOW_THREADSz  _cffi_restore_errno();z  { %s%s(%s); }c                 S   r   )r   r   rM   r   r   r   rL     rP   z  _cffi_save_errno();z  Py_END_ALLOW_THREADS  (void)self; /* unused */  (void)noarg; /* unused */z  pyresult = %s;r   zresult typez  z  return pyresult;z  Py_INCREF(Py_None);z  return Py_None;r<   )r/   r   r   r   _generate_cpy_constr*   r2   r   	enumerater   setr   sortedr   VoidTyperh   joinr   r   )r   r3   r1   rB   numargsargnamer   rN   r,   r   r   r6   result_coderngfreeliner   r   r   _generate_cpy_function_decl\  s   





z*VCPythonEngine._generate_cpy_function_declc                 C   sL   |j rd S t|j}|dkrd}n	|dkrd}nd}| d|||f  d S )Nr   METH_NOARGSr   METH_OMETH_VARARGSz  {"%s", _cffi_f_%s, %s, NULL},)r   r2   r   r*   )r   r3   r1   r   methr   r   r   _generate_cpy_function_method  s   
z,VCPythonEngine._generate_cpy_function_methodc                 C   s.   |j rd S t||}t||| || j|< d S r   )r   r~   setattrr   )r   r3   r1   r[   r^   funcr   r   r   _loaded_cpy_function  s
   
z#VCPythonEngine._loaded_cpy_functionc                 C       ||j ksJ | |d| d S Nstructr1   _generate_struct_or_union_declr   r   r   r   _generate_cpy_struct_decl     z(VCPythonEngine._generate_cpy_struct_declc                 C      |  |d| d S r    _generate_struct_or_union_methodr   r   r   r   _generate_cpy_struct_method     z*VCPythonEngine._generate_cpy_struct_methodc                 C      |  |d|| d S r   _loading_struct_or_unionr   r3   r1   r[   r   r   r   _loading_cpy_struct  r+   z"VCPythonEngine._loading_cpy_structc                 K      |  | d S r   _loaded_struct_or_unionr   r   r   r   _loaded_cpy_struct     z!VCPythonEngine._loaded_cpy_structc                 C   r   Nunionr   r   r   r   r   _generate_cpy_union_decl  r   z'VCPythonEngine._generate_cpy_union_declc                 C   r   r   r   r   r   r   r   _generate_cpy_union_method  r   z)VCPythonEngine._generate_cpy_union_methodc                 C   r   r   r   r   r   r   r   _loading_cpy_union  r+   z!VCPythonEngine._loading_cpy_unionc                 K   r   r   r   r   r   r   r   _loaded_cpy_union  r   z VCPythonEngine._loaded_cpy_unionc                 C   s  |j d u rd S d||f }d||f }d||f  }| j}|d||f  |d |d |d | D ]G\}}	}
}t|	tjrF|	 sJ|
dkrQ|d	|  q6z|d
|	jdd| |d|f  W q6 t	y} } z|dt
|  W Y d }~q6d }~ww |d |d |d|f  |d |d|  |d |d|  |d | D ]/\}}	}
}|
dkrq|d||f  t|	tjr|	jd u r|d|	   q|d||f  q|d |d |d |d |d |d |d|f  |d |  d S ) Nz_cffi_check_%s_%s_cffi_layout_%s_%s%s %szstatic void %s(%s *p)r9   z8  /* only to generate compile-time warnings or errors */z
  (void)p;r   z  (void)((p->%s) << 1);z  { %s = &p->%s; (void)tmp; }z*tmpzfield %r)qualsz
  /* %s */r<   r   z#%s(PyObject *self, PyObject *noarg)z,  struct _cffi_aligncheck { char x; %s y; };z  static Py_ssize_t nums[] = {z    sizeof(%s),z)    offsetof(struct _cffi_aligncheck, y),z    offsetof(%s, %s),z    0,  /* %s */z    sizeof(((%s *)0)->%s),z    -1z  };r   r   z'  return _cffi_get_struct_layout(nums);z3  /* the next line is not executed, but compiled */z  %s(0);)r   stripr*   
enumfieldsr/   r   r0   r   r   r   strr   lengthr   )r   r3   prefixr1   checkfuncnamelayoutfuncnamecnamerB   fnameftypefbitsizefqualrs   r   r   r   r     sd   

z-VCPythonEngine._generate_struct_or_union_declc                 C   s0   |j d u rd S d||f }| d||f  d S )Nr   z   {"%s", %s, METH_NOARGS, NULL},)r   r*   )r   r3   r   r1   r   r   r   r   r     s   
z/VCPythonEngine._generate_struct_or_union_methodc                 C   s   |j d u rd S d||f }t||}| }t|tjrV|jrV|d }|d }	|dd d }
|dd d }|  t|
t|  krJt|j ksMJ  J |
|||	f|_d S d||f 	 }||f| j
|< d S )Nr   r   r         r   )r   r~   r/   r   r   partialforce_flattenr2   fixedlayoutr   r   )r   r3   r   r1   r[   r   functionlayout	totalsizetotalalignmentfieldofs	fieldsizer   r   r   r   r     s   

*z'VCPythonEngine._loading_struct_or_unionc                 C   s  |j d u rd S | j| || jv rdd }| j}||}| j|\}}||d ||d ||d ||d d}| D ];\}}	}
}|
dkrMqB||| |||d|f  ||d  dkry||	}|||d  ||d	|f  |d7 }qB|t	|ksJ d S d S )
Nc                 S   s   | |krt d||| f d S )Nz'%s (we have %d, but C compiler says %d)r   )	realvalueexpectedvaluemsgr   r   r   check0  s   z5VCPythonEngine._loaded_struct_or_union.<locals>.checkr   zwrong total sizer   zwrong total alignmentr   zwrong offset for field %rzwrong size for field %r)
r   r
   rj   r   popsizeofalignofr   offsetofr2   )r   r3   r  r
   BStructr   r   rN   r   r   r   r   BFieldr   r   r   r   )  s4   




z&VCPythonEngine._loaded_struct_or_unionc                 C   s0   t |tjr| ||d d S | |d| d S Nr%   )r/   r   r   _generate_cpy_enum_declr   r   r   r   r   _generate_cpy_anonymous_declM  s   z+VCPythonEngine._generate_cpy_anonymous_declc                 C   s"   t |tjs| |d| d S d S r
  )r/   r   r   r   r   r   r   r   _generate_cpy_anonymous_methodS  s   z-VCPythonEngine._generate_cpy_anonymous_methodc                 C   s2   t |tjr| ||| d S | |d|| d S r
  )r/   r   r   _loading_cpy_enumr   r   r   r   r   _loading_cpy_anonymousW  s   z%VCPythonEngine._loading_cpy_anonymousc                 K   s4   t |tjr| j|||fi | d S | | d S r   )r/   r   r   _loaded_cpy_enumr   r   r   r   r   _loaded_cpy_anonymous]  s   z$VCPythonEngine._loaded_cpy_anonymousconstFc	                 C   sr  | j }	d||f }
|	d|
  |	d |	d |	d |s*|	d|p"|d|  n|dks0J |d ur:| || |s_|d	krEd
| }n|}|	d|f  |	d| |ddf  |s^J n|	d|  |	d |	d |r|	d |	d |	d|f  |	d |	d |	d |	d |	d|  |	d |	d |	d |	d| j|   |
d | j|< |	d |	  d S )Nz_cffi_%s_%sstatic int %s(PyObject *lib)r9   z  PyObject *o;z
  int res;r   z ir  r   &z  i = (%s);z	  o = %s;rN   zvariable typez!  o = _cffi_from_c_int_const(%s);z  if (o == NULL)    return -1;z  {z    PyObject *o1 = o;z8    o = Py_BuildValue("On", o1, (Py_ssize_t)sizeof(%s));z    Py_DECREF(o1);z    if (o == NULL)z      return -1;r;   z-  res = PyObject_SetAttrString(lib, "%s", o);z  Py_DECREF(o);z  if (res < 0)  return %s;(lib)r<   )r*   r   _check_int_constant_valuer   r=   )r   is_intr1   r3   categoryvartpdelayedsize_toocheck_valuerB   funcnamerealexprr   r   r   r   f  sR   



z"VCPythonEngine._generate_cpy_constc                 C   s*   t |tjo	| }|s| | d S d S r   )r/   r   r0   r   r5   r   r3   r1   r  r   r   r   "_generate_cpy_constant_collecttype  s   z1VCPythonEngine._generate_cpy_constant_collecttypec                 C   s&   t |tjo	| }| ||| d S r   )r/   r   r0   r   r   r!  r   r   r   _generate_cpy_constant_decl  s   z*VCPythonEngine._generate_cpy_constant_declc                 C   s   | j }|dkr|d|||f  n	|d|||f  |d |d|  |d|  |d |d|  |d	 |d
 |d|||f  |d |d d S )Nr   z&  if ((%s) > 0 || (long)(%s) != %dL) {z1  if ((%s) <= 0 || (unsigned long)(%s) != %dUL) {z    char buf[64];z    if ((%s) <= 0)z.        snprintf(buf, 63, "%%ld", (long)(%s));z    elsez7        snprintf(buf, 63, "%%lu", (unsigned long)(%s));z)    PyErr_Format(_cffi_VerificationError,z6                 "%s%s has the real value %s, not %s",z(                 "%s", "%s", buf, "%d");r  r;   )r*   )r   r1   rK   
err_prefixrB   r   r   r   r    s,   
z(VCPythonEngine._check_int_constant_valuec                 C   s   | dd}d||f S )N$___D_z_cffi_e_%s_%s)r   )r   r   r1   r   r   r   _enum_funcname  s   zVCPythonEngine._enum_funcnameenumc                 C   s   |j r|jD ]
}| jd|dd qd S | ||}| j}|d|  |d t|j|jD ]\}}| ||d|  q-|d| jd   |d | jd< |d	 |  d S )
NTF)r  r  r9   z	enum %s: r  r  r<   )	r   enumeratorsr   r'  r*   zip
enumvaluesr  r=   )r   r3   r1   r   
enumeratorr  rB   	enumvaluer   r   r   r    s    

z&VCPythonEngine._generate_cpy_enum_declc                    s2   |j r fdd|jD }t||_d|_d S d S )Nc                    s   g | ]}t  |qS r   )r~   )rI   r,  r[   r   r   rL     s    z4VCPythonEngine._loading_cpy_enum.<locals>.<listcomp>T)r   r)  tupler+  partial_resolved)r   r3   r1   r[   r+  r   r.  r   r    s   


z VCPythonEngine._loading_cpy_enumc                 C   s(   t |j|jD ]
\}}t||| qd S r   )r*  r)  r+  r   )r   r3   r1   r[   r^   r,  r-  r   r   r   r    s   zVCPythonEngine._loaded_cpy_enumc                 C   s&   |dkrd }n|}| j d||d d S )Nz...T)r  )r   )r   r3   r1   r  r   r   r   _generate_cpy_macro_decl  s   z'VCPythonEngine._generate_cpy_macro_declc                 C   s2   t |tjrt|j}nt|}| | d S r   )r/   r   r   r   r   r5   r   r3   r1   tp_ptrr   r   r   "_generate_cpy_variable_collecttype  s   
z1VCPythonEngine._generate_cpy_variable_collecttypec                 C   sT   t |tjrt|j}| jd|||| d d S t|}| jd||dd d S )NF)r  r  r   )r  )r/   r   r   r   r   r   length_is_unknownr2  r   r   r   _generate_cpy_variable_decl  s   

z*VCPythonEngine._generate_cpy_variable_declc                    s   t ||}t|tjrX| r>t|tsJ |\}}| j|j}t	|| j
|\}}	|	dkr9td||jf ||}|jd urV| j|}
| j|
|}t||| d S | t||  fdd} fdd}tt||t|| t|j| d S )Nr   z/bad size: %r does not seem to be an array of %sc                    s    d S r   r   r]   ptrr   r   getter  s   z3VCPythonEngine._loaded_cpy_variable.<locals>.getterc                    s   | d< d S r   r   )r^   rK   r7  r   r   setter   s   z3VCPythonEngine._loaded_cpy_variable.<locals>.setter)r~   r/   r   r   r5  r/  r
   rj   r   divmodr  r   resolve_lengthr   castr   delattrr,   propertyrQ   append)r   r3   r1   r[   r^   rK   size	BItemTyper   restBArrayr9  r:  r   r7  r   _loaded_cpy_variable  s2   



z#VCPythonEngine._loaded_cpy_variablec                 C   s4   | j }|d |d |d| jd   |d d S )Nz,static int _cffi_setup_custom(PyObject *lib)r9   r  Tr<   )r*   r=   )r   rB   r   r   r   r@   '  s
   z%VCPythonEngine._generate_setup_custom)r%   r   )Nr  NTFN)r(  )LrV   rW   rX   
_class_key_gen_python_moduler   r   r   r$   r*   r-   r5   rE   rv   r{   r"   re   r   r   r   r   r   r   !_generate_cpy_typedef_collecttype_generate_cpy_typedef_decl_generate_cpy_typedef_method_loading_cpy_typedef_loaded_cpy_typedefr   r   r   _loading_cpy_functionr    _generate_cpy_struct_collecttyper   r   r   r   _generate_cpy_union_collecttyper   r   r   r   r   r   r   r   #_generate_cpy_anonymous_collecttyper  r  r  r  r   r"  r#  _generate_cpy_constant_method_loading_cpy_constant_loaded_cpy_constantr  r'  r  _generate_cpy_enum_collecttype_generate_cpy_enum_methodr  r  r1  _generate_cpy_macro_collecttype_generate_cpy_macro_method_loading_cpy_macro_loaded_cpy_macror4  r6  _generate_cpy_variable_method_loading_cpy_variablerE  r@   r   r   r   r   r   	   s    

[:
$P
3"	
0

	"r   a(  
#include <Python.h>
#include <stddef.h>

/* this block of #ifs should be kept exactly identical between
   c/_cffi_backend.c, cffi/vengine_cpy.py, cffi/vengine_gen.py
   and cffi/_cffi_include.h */
#if defined(_MSC_VER)
# include <malloc.h>   /* for alloca() */
# if _MSC_VER < 1600   /* MSVC < 2010 */
   typedef __int8 int8_t;
   typedef __int16 int16_t;
   typedef __int32 int32_t;
   typedef __int64 int64_t;
   typedef unsigned __int8 uint8_t;
   typedef unsigned __int16 uint16_t;
   typedef unsigned __int32 uint32_t;
   typedef unsigned __int64 uint64_t;
   typedef __int8 int_least8_t;
   typedef __int16 int_least16_t;
   typedef __int32 int_least32_t;
   typedef __int64 int_least64_t;
   typedef unsigned __int8 uint_least8_t;
   typedef unsigned __int16 uint_least16_t;
   typedef unsigned __int32 uint_least32_t;
   typedef unsigned __int64 uint_least64_t;
   typedef __int8 int_fast8_t;
   typedef __int16 int_fast16_t;
   typedef __int32 int_fast32_t;
   typedef __int64 int_fast64_t;
   typedef unsigned __int8 uint_fast8_t;
   typedef unsigned __int16 uint_fast16_t;
   typedef unsigned __int32 uint_fast32_t;
   typedef unsigned __int64 uint_fast64_t;
   typedef __int64 intmax_t;
   typedef unsigned __int64 uintmax_t;
# else
#  include <stdint.h>
# endif
# if _MSC_VER < 1800   /* MSVC < 2013 */
#  ifndef __cplusplus
    typedef unsigned char _Bool;
#  endif
# endif
#else
# include <stdint.h>
# if (defined (__SVR4) && defined (__sun)) || defined(_AIX) || defined(__hpux)
#  include <alloca.h>
# endif
#endif

#if PY_MAJOR_VERSION < 3
# undef PyCapsule_CheckExact
# undef PyCapsule_GetPointer
# define PyCapsule_CheckExact(capsule) (PyCObject_Check(capsule))
# define PyCapsule_GetPointer(capsule, name) \
    (PyCObject_AsVoidPtr(capsule))
#endif

#if PY_MAJOR_VERSION >= 3
# define PyInt_FromLong PyLong_FromLong
#endif

#define _cffi_from_c_double PyFloat_FromDouble
#define _cffi_from_c_float PyFloat_FromDouble
#define _cffi_from_c_long PyInt_FromLong
#define _cffi_from_c_ulong PyLong_FromUnsignedLong
#define _cffi_from_c_longlong PyLong_FromLongLong
#define _cffi_from_c_ulonglong PyLong_FromUnsignedLongLong
#define _cffi_from_c__Bool PyBool_FromLong

#define _cffi_to_c_double PyFloat_AsDouble
#define _cffi_to_c_float PyFloat_AsDouble

#define _cffi_from_c_int_const(x)                                        \
    (((x) > 0) ?                                                         \
        ((unsigned long long)(x) <= (unsigned long long)LONG_MAX) ?      \
            PyInt_FromLong((long)(x)) :                                  \
            PyLong_FromUnsignedLongLong((unsigned long long)(x)) :       \
        ((long long)(x) >= (long long)LONG_MIN) ?                        \
            PyInt_FromLong((long)(x)) :                                  \
            PyLong_FromLongLong((long long)(x)))

#define _cffi_from_c_int(x, type)                                        \
    (((type)-1) > 0 ? /* unsigned */                                     \
        (sizeof(type) < sizeof(long) ?                                   \
            PyInt_FromLong((long)x) :                                    \
         sizeof(type) == sizeof(long) ?                                  \
            PyLong_FromUnsignedLong((unsigned long)x) :                  \
            PyLong_FromUnsignedLongLong((unsigned long long)x)) :        \
        (sizeof(type) <= sizeof(long) ?                                  \
            PyInt_FromLong((long)x) :                                    \
            PyLong_FromLongLong((long long)x)))

#define _cffi_to_c_int(o, type)                                          \
    ((type)(                                                             \
     sizeof(type) == 1 ? (((type)-1) > 0 ? (type)_cffi_to_c_u8(o)        \
                                         : (type)_cffi_to_c_i8(o)) :     \
     sizeof(type) == 2 ? (((type)-1) > 0 ? (type)_cffi_to_c_u16(o)       \
                                         : (type)_cffi_to_c_i16(o)) :    \
     sizeof(type) == 4 ? (((type)-1) > 0 ? (type)_cffi_to_c_u32(o)       \
                                         : (type)_cffi_to_c_i32(o)) :    \
     sizeof(type) == 8 ? (((type)-1) > 0 ? (type)_cffi_to_c_u64(o)       \
                                         : (type)_cffi_to_c_i64(o)) :    \
     (Py_FatalError("unsupported size for type " #type), (type)0)))

#define _cffi_to_c_i8                                                    \
                 ((int(*)(PyObject *))_cffi_exports[1])
#define _cffi_to_c_u8                                                    \
                 ((int(*)(PyObject *))_cffi_exports[2])
#define _cffi_to_c_i16                                                   \
                 ((int(*)(PyObject *))_cffi_exports[3])
#define _cffi_to_c_u16                                                   \
                 ((int(*)(PyObject *))_cffi_exports[4])
#define _cffi_to_c_i32                                                   \
                 ((int(*)(PyObject *))_cffi_exports[5])
#define _cffi_to_c_u32                                                   \
                 ((unsigned int(*)(PyObject *))_cffi_exports[6])
#define _cffi_to_c_i64                                                   \
                 ((long long(*)(PyObject *))_cffi_exports[7])
#define _cffi_to_c_u64                                                   \
                 ((unsigned long long(*)(PyObject *))_cffi_exports[8])
#define _cffi_to_c_char                                                  \
                 ((int(*)(PyObject *))_cffi_exports[9])
#define _cffi_from_c_pointer                                             \
    ((PyObject *(*)(char *, CTypeDescrObject *))_cffi_exports[10])
#define _cffi_to_c_pointer                                               \
    ((char *(*)(PyObject *, CTypeDescrObject *))_cffi_exports[11])
#define _cffi_get_struct_layout                                          \
    ((PyObject *(*)(Py_ssize_t[]))_cffi_exports[12])
#define _cffi_restore_errno                                              \
    ((void(*)(void))_cffi_exports[13])
#define _cffi_save_errno                                                 \
    ((void(*)(void))_cffi_exports[14])
#define _cffi_from_c_char                                                \
    ((PyObject *(*)(char))_cffi_exports[15])
#define _cffi_from_c_deref                                               \
    ((PyObject *(*)(char *, CTypeDescrObject *))_cffi_exports[16])
#define _cffi_to_c                                                       \
    ((int(*)(char *, CTypeDescrObject *, PyObject *))_cffi_exports[17])
#define _cffi_from_c_struct                                              \
    ((PyObject *(*)(char *, CTypeDescrObject *))_cffi_exports[18])
#define _cffi_to_c_wchar_t                                               \
    ((wchar_t(*)(PyObject *))_cffi_exports[19])
#define _cffi_from_c_wchar_t                                             \
    ((PyObject *(*)(wchar_t))_cffi_exports[20])
#define _cffi_to_c_long_double                                           \
    ((long double(*)(PyObject *))_cffi_exports[21])
#define _cffi_to_c__Bool                                                 \
    ((_Bool(*)(PyObject *))_cffi_exports[22])
#define _cffi_prepare_pointer_call_argument                              \
    ((Py_ssize_t(*)(CTypeDescrObject *, PyObject *, char **))_cffi_exports[23])
#define _cffi_convert_array_from_object                                  \
    ((int(*)(char *, CTypeDescrObject *, PyObject *))_cffi_exports[24])
#define _CFFI_NUM_EXPORTS 25

typedef struct _ctypedescr CTypeDescrObject;

static void *_cffi_exports[_CFFI_NUM_EXPORTS];
static PyObject *_cffi_types, *_cffi_VerificationError;

static int _cffi_setup_custom(PyObject *lib);   /* forward */

static PyObject *_cffi_setup(PyObject *self, PyObject *args)
{
    PyObject *library;
    int was_alive = (_cffi_types != NULL);
    (void)self; /* unused */
    if (!PyArg_ParseTuple(args, "OOO", &_cffi_types, &_cffi_VerificationError,
                                       &library))
        return NULL;
    Py_INCREF(_cffi_types);
    Py_INCREF(_cffi_VerificationError);
    if (_cffi_setup_custom(library) < 0)
        return NULL;
    return PyBool_FromLong(was_alive);
}

union _cffi_union_alignment_u {
    unsigned char m_char;
    unsigned short m_short;
    unsigned int m_int;
    unsigned long m_long;
    unsigned long long m_longlong;
    float m_float;
    double m_double;
    long double m_longdouble;
};

struct _cffi_freeme_s {
    struct _cffi_freeme_s *next;
    union _cffi_union_alignment_u alignment;
};

#ifdef __GNUC__
  __attribute__((unused))
#endif
static int _cffi_convert_array_argument(CTypeDescrObject *ctptr, PyObject *arg,
                                        char **output_data, Py_ssize_t datasize,
                                        struct _cffi_freeme_s **freeme)
{
    char *p;
    if (datasize < 0)
        return -1;

    p = *output_data;
    if (p == NULL) {
        struct _cffi_freeme_s *fp = (struct _cffi_freeme_s *)PyObject_Malloc(
            offsetof(struct _cffi_freeme_s, alignment) + (size_t)datasize);
        if (fp == NULL)
            return -1;
        fp->next = *freeme;
        *freeme = fp;
        p = *output_data = (char *)&fp->alignment;
    }
    memset((void *)p, 0, (size_t)datasize);
    return _cffi_convert_array_from_object(p, ctptr, arg);
}

#ifdef __GNUC__
  __attribute__((unused))
#endif
static void _cffi_free_array_arguments(struct _cffi_freeme_s *freeme)
{
    do {
        void *p = (void *)freeme;
        freeme = freeme->next;
        PyObject_Free(p);
    } while (freeme != NULL);
}

static int _cffi_init(void)
{
    PyObject *module, *c_api_object = NULL;

    module = PyImport_ImportModule("_cffi_backend");
    if (module == NULL)
        goto failure;

    c_api_object = PyObject_GetAttrString(module, "_C_API");
    if (c_api_object == NULL)
        goto failure;
    if (!PyCapsule_CheckExact(c_api_object)) {
        PyErr_SetNone(PyExc_ImportError);
        goto failure;
    }
    memcpy(_cffi_exports, PyCapsule_GetPointer(c_api_object, "cffi"),
           _CFFI_NUM_EXPORTS * sizeof(void *));

    Py_DECREF(module);
    Py_DECREF(c_api_object);
    return 0;

  failure:
    Py_XDECREF(module);
    Py_XDECREF(c_api_object);
    return -1;
}

#define _cffi_type(num) ((CTypeDescrObject *)PyList_GET_ITEM(_cffi_types, num))

/**********/
)	ra   r   r%   r   rt   r   rk   r   r>   r   r   r   r   <module>   s         +