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backend_ctypes.cpython-39.pyc
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� isinstance)r r �ctype�resr r r �_arg_to_ctypes s zCTypesData._arg_to_ctypesc C s |d u r| � � S | � |�S d S r �r' r r r r �_create_ctype_obj. s z CTypesData._create_ctype_objc C s t �d S r r )Z ctypes_valuer r r � _from_ctypes5 s zCTypesData._from_ctypes� c C s | j �d|�S �Nz &)� _reftypename�replace)r � replace_withr r r r 9 s zCTypesData._get_c_namec C s* d| � � f | _d| � � f | _d| _d S )Nz CData<%s>�ffi)r r r r �r r r r � _fix_class= s zCTypesData._fix_classc C s t �d S r ��NotImplementedError�r r r r � _get_own_reprC s zCTypesData._get_own_reprc C s8 |dkr dS |dk r,|ddt �t j� > 7 }d| S d S )Nr ZNULLr � z0x%x)�ctypes�sizeof�c_void_p)r �addressr r r � _addr_reprF s zCTypesData._addr_reprNc C s | � � }d|p| �� |f S )Nz <cdata %r %s>)r6 r )r �c_nameZownr r r �__repr__N s zCTypesData.__repr__c C s8 |d u r t d| �� f ��nt d| �� |�� f ��d S )Nz cannot convert %r to an addresszcannot convert %r to %rr �r ZBClassr r r �_convert_to_addressR s � �z CTypesData._convert_to_addressc C s t �| j�S r �r8 r9 r" r1 r r r � _get_sizeZ s zCTypesData._get_sizec C s t �| j�S r rA r5 r r r �_get_size_of_instance^ s z CTypesData._get_size_of_instancec C s t d| �� f ��d S )Nzcannot cast to %rr �r �sourcer r r � _cast_froma s zCTypesData._cast_fromc C s | � d �S r )r@ r5 r r r �_cast_to_integere s zCTypesData._cast_to_integerc C s t �| j�S r )r8 � alignmentr" r1 r r r � _alignmenth s zCTypesData._alignmentc C s t d| �� ��d S )Nz#cdata %r does not support iterationr r5 r r r �__iter__l s �zCTypesData.__iter__c s t t| �� � fdd�}| |_|S )Nc sz t | t� }t |t�o t |t� }|r@|r@� | �d �|�d ��S |sH|rLtS t | t�r\| j} t |t�rl|j}� | |�S d S r )r$ �CTypesGenericPrimitiver r@ �NotImplemented�_value)r �otherZv_is_ptrZw_is_ptr�Zcmpfuncr r �cmpr s � � z!CTypesData._make_cmp.<locals>.cmp)�getattr�operator� func_name)�namerP r rO r � _make_cmpp s zCTypesData._make_cmp�__eq__�__ne__�__lt__�__le__�__gt__�__ge__c C s t | �d ��S r )�hashr@ r5 r r r �__hash__� s zCTypesData.__hash__c C s t d| f ��d S )Nz string(): %rr �r �maxlenr r r � _to_string� s zCTypesData._to_string)r+ )N)#r r r r � __metaclass__� __slots__r � classmethodr � staticmethodr! r' r) r* r r2 r6 r< r> r@ rB rC rF rG rI rJ rU rV rW rX rY rZ r[ r] r` r r r r r sP r c @ s e Zd Zg Zdd� Zdd� ZdS )rK c C s t | j�S r )r\ rM r5 r r r r] � s z CTypesGenericPrimitive.__hash__c C s t | �| j��S r )�reprr* rM r5 r r r r6 � s z$CTypesGenericPrimitive._get_own_reprN)r r r rb r] r6 r r r r rK � s rK c @ s, e Zd Zg Zedd� �Zdd� Zdd� ZdS )�CTypesGenericArrayc C s | |�S r r r r r r r � s zCTypesGenericArray._newpc c s t t| ��D ]}| | V q d S r )�xrange�len)r �ir r r rJ � s zCTypesGenericArray.__iter__c C s | � t�| j��S r �r< r8 � addressof�_blobr5 r r r r6 � s z CTypesGenericArray._get_own_reprN)r r r rb rc r rJ r6 r r r r rf � s rf c @ s� e Zd ZddgZdZdZedd� �Zedd� �Zed d � �Z d d � Z d d� Z dd� Z e Z edd� �Zedd� �Zedd� �Zdd� ZdS )�CTypesGenericPtr�_address� _as_ctype_ptrF�pointerc C s | |�S r r r r r r r � s zCTypesGenericPtr._newpc C sV |d u rd}n>t |t�r"|�� }n*t |ttf�r6|}ntd| t|�jf ��| �|�S �Nr zbad type for cast to %r: %r) r$ r rG �int�longr �typer �_new_pointer_at)r rE r; r r r rF � s �zCTypesGenericPtr._cast_fromc C s$ | � | �}||_t�|| j�|_|S r )�__new__rn r8 �castr" ro )r r; r r r r ru � s z CTypesGenericPtr._new_pointer_atc C s( z| � | j�W S ty" Y dS 0 d S )Nz???)r< rn r# r5 r r r r6 � s z CTypesGenericPtr._get_own_reprc C s | j S r )rn r5 r r r rG � s z!CTypesGenericPtr._cast_to_integerc C s t | j�S r )�boolrn r5 r r r � __nonzero__� s z CTypesGenericPtr.__nonzero__c C s4 t |t�s tdt|�j ��|�| �}t�|| j�S )Nzunexpected %s object) r$ r r rt r r@ r8 rw r" )r r r; r r r r! � s zCTypesGenericPtr._to_ctypesc C s t �|t j�jpd}| �|�S �Nr )r8 rw r: r ru )r � ctypes_ptrr; r r r r* � s z CTypesGenericPtr._from_ctypesc C s |r| � |�j|_d S r )r! �contents)r r{ r r r r � _initialize� s z CTypesGenericPtr._initializec C s0 || j d fv s|js| jr | jS t�| |�S d S r )r �_automatic_castsrn r r@ r? r r r r@ � s �z$CTypesGenericPtr._convert_to_addressN)r r r rb r~ �kindrc r rF ru r6 rG ry �__bool__r! r* r} r@ r r r r rm � s( rm c @ s\ e Zd ZdgZedd� �Zdd� Zedd� �Zdd � Zed d � �Z ed d � �Z ddd�Z dS )�CTypesBaseStructOrUnionrl c C s t d| f ��d S )Nz!cannot instantiate opaque type %sr r r r r r) � s z)CTypesBaseStructOrUnion._create_ctype_objc C s | � t�| j��S r rj r5 r r r r6 � s z%CTypesBaseStructOrUnion._get_own_reprc C s t | j|�jS r )rQ r" �offset)r � fieldnamer r r � _offsetof� s z!CTypesBaseStructOrUnion._offsetofc C s. t |dd �| ju r t�| j�S t�| |�S d S )N�_BItem)rQ r r8 rk rl r r@ r? r r r r@ � s z+CTypesBaseStructOrUnion._convert_to_addressc C s | � | �}||_|S r �rv rl )r Zctypes_struct_or_unionr r r r r* s z$CTypesBaseStructOrUnion._from_ctypesc C s |j S r )rl �r r r r r r! s z"CTypesBaseStructOrUnion._to_ctypesNc C s t �| |p| �d��S r, )r r> r )r r= r r r r> s z CTypesBaseStructOrUnion.__repr__)N) r r r rb rc r) r6 r� r@ r* r! r> r r r r r� � s r� c @ s e Zd Zejejejejejej ej ej ej ej ejejejejd�ZdD ]^Ze�ee �Zee edde < ee�ej�kr�ee ed< ee�ej�krJee ed< qJdD ]jZe�ee �Zee edde < ee�ej�kr�ee ed < ee ed < ee�ej�kr�ee ed < q�d d � Zdd� Zdd� ZdEdd�Zdd� Z dd� Z dd� Z dd � Z d d � Z d d � Z!d!d"� Z"dFd$d%�Z#d&d'� Z$d(d)� Z%d*d+� Z&d,d-� Z'dGd.d/�Z(dHd0d1�Z)d2d3� Zd4d5� Z*d6d7� Z+d8d9� Z,d:d;� Z-d<Z.dId=d>�Z/e0Z1d?d@� Z2dJdAdB�Z3dKdCdD�Z4d<S )L� CTypesBackend)�char�shortrr rs � long long� signed char� unsigned char�unsigned short� unsigned int� unsigned long�unsigned long long�float�double�_Bool)r� r� r� r� r� zuint%d_tr7 Z uintptr_tZsize_t)r� rs rr r� r� zint%d_tZintptr_tZ ptrdiff_tZssize_tc C s d| _ d| _tj| _tj| _d S rz )� RTLD_LAZY�RTLD_NOWr8 � RTLD_GLOBAL� RTLD_LOCALr5 r r r r 7 s zCTypesBackend.__init__c C s || _ d S r )r0 )r r0 r r r �set_ffi= s zCTypesBackend.set_ffic C s t tfS r )r r r5 r r r � _get_types@ s zCTypesBackend._get_typesr c C s t �||�}t| |�S r )r8 �CDLL� CTypesLibrary)r �path�flags�cdllr r r � load_libraryC s zCTypesBackend.load_libraryc C s G dd� dt �}|�� |S )Nc @ s, e Zd Zg ZdZedd� �Zedd� �ZdS )z/CTypesBackend.new_void_type.<locals>.CTypesVoidzvoid &c S s d S r r �Znovaluer r r r* K s z<CTypesBackend.new_void_type.<locals>.CTypesVoid._from_ctypesc S s | d ur t dt| �jf ��d S )Nz None expected, got %s object)r rt r r� r r r r! N s �z:CTypesBackend.new_void_type.<locals>.CTypesVoid._to_ctypesN)r r r rb r- rd r* r! r r r r � CTypesVoidH s r� )r r2 )r r� r r r � new_void_typeG s zCTypesBackend.new_void_typec s� �dkrt ���| j� ��dkr(d}n<�dv r6d}n.�dv rDd}n�dkrRd}nd }�d �jd k�� fd d ��|�G � �����fd d�dt�� � �� � S )NZwchar_tr� )r� r� r� )r� r� �byter� rx rr ���c sj t | tttf�rt| �} nLt | t�r.| �� } n8t | t�rBt| �} n$| d u rPd} ntd� t | �j f ��| S rq ) r$ rr rs r� r rG r �ordr rt r )rE ��CTypesPrimitiver r �_cast_source_to_inth s �z=CTypesBackend.new_primitive_type.<locals>._cast_source_to_intc s� e Zd ZdgZ�Zd� Z�Zdd� Ze� �fdd��Z edksHedkrbe ��fd d ��Z d d � Z ed kr�e �fdd ��Z dd � Z edkr�e �fdd ��Z dd � Z edkr�e ��fdd ��Z dd � Z dd� Z e Zedks�edks�ed kr�e���fdd��Zedk�r e� fdd��Zdd � Znd d � ZeZedk�rFe�fd d��Zed d � �Ze� fd!d"��Zedk�rtd#d$� Zedk�r�d%d$� Zd&S )'z9CTypesBackend.new_primitive_type.<locals>.CTypesPrimitiverM �%s &c S s || _ d S r �rM �r r r r r r } s zBCTypesBackend.new_primitive_type.<locals>.CTypesPrimitive.__init__c s | d u r�� S �� � | ��S r )r! �r )r� r% r r r) � s zKCTypesBackend.new_primitive_type.<locals>.CTypesPrimitive._create_ctype_objrr r� c s � |�}�|�j }| |�S r r rD �r� r% r r rF � s zDCTypesBackend.new_primitive_type.<locals>.CTypesPrimitive._cast_fromc S s | j S r r� r5 r r r �__int__� s zACTypesBackend.new_primitive_type.<locals>.CTypesPrimitive.__int__rx c s$ t |tttf�s� |�}| t|��S r )r$ rr rs r� rx rD �r� r r rF � s c S s t | j�S r �rr rM r5 r r r r� � s r� c s � |�}t |d@ �}| |�S �N� )�bytechrrD r� r r rF � s c S s t | j�S r �r� rM r5 r r r r� � s r� c sN t |t�r n0t |t�r4t|d�r*t|�}q<t|�}n� |�}�|�j}| |�S )N� __float__)r$ r� rK �hasattrrr r rD r� r r rF � s c S s t | j�S r r� r5 r r r r� � s c S s | j S r r� r5 r r r r� � s zCCTypesBackend.new_primitive_type.<locals>.CTypesPrimitive.__float__c sl t | ttf�s4t | t�r"t| �} ntdt| �j ��� | �j| krh�s\| dk r\td� ��n td� ��| S )Nzinteger expected, got %sr z%s: negative integerz%s: integer out of bounds) r$ rr rs r r rt r r � OverflowError��x)r% � is_signedrT r r r! � s � �zDCTypesBackend.new_primitive_type.<locals>.CTypesPrimitive._to_ctypesc s@ t | t�rt| �dkr| S t | � �r*| jS tdt| �j ��d S )Nr zcharacter expected, got %s)r$ r rh rM r rt r r� r� r r r! 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