verifier.pyc
1 o 2 w��c(- � @ s� d dl Z d dlZd dlZd dlZd dlZddlmZ ddlmZ ddlm Z e j 3 dkr4d dl Z dd� Z nd dlZd d� Z e j 4 d 5 krEejZn G d d � d ej�ZG d d� de�ZdZdd� Zdadd� Zdd� Zd dd�Zdd� Zdd� ZdS ) � N� )� __version_verifier_modules__)� ffiplatform)�VerificationError)� r c C s t jjd d � S �N)� importlib� machinery�EXTENSION_SUFFIXES� r r ��C:\Users\Jacks.GUTTSPC\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\cffi\verifier.py�_extension_suffixes s r c C s dd� t �� D �S )Nc S s g | ] \}}}|t jkr|�qS r )�imp� C_EXTENSION)�.0�suffix�_�typer r r � 6 <listcomp> s 7 �z'_extension_suffixes.<locals>.<listcomp>)r � get_suffixesr r r r r s �r c s e Zd Z� fdd�Z� ZS )�NativeIOc s( t |t�r 8 |�d�}tt| ��|� d S )N�ascii)� 9 isinstance�unicode�encode�superr �write)�self�s�� __class__r r r s 10 11 zNativeIO.write)�__name__� 12 __module__� __qualname__r � __classcell__r r r r r s r c @ s� e Zd Z d dd�Zd dd�Zd d 13 � Zd d � Zd d� Zdd� Zdd� Z dd� Z 14 dd� Z dd� Z d dd�Z dd � Zd d � ZdS )!�VerifierN� F�.cc K sx |j jr td|j jf ��|| _|| _|st�| �} t||�} | | �| _| j� | � | | _ 15 | � | | 16 �| _ |r=|r<t d��nSd�dtjd d� t|| g|j �}tjdkrZ|�d�}tt�|dd d� �d @ �}|�d 17 ��d �}tt�|d d d� �d @ �}|�d ��d �}d|| jj||f }t� d }|p�t� | _ t j �| j || �| _ t j �| j || �| _ || _!d| _"d| _#d S )NzKfeature not supported with ffi.verify(), but only with ffi.set_source(): %sz)can't specify both 'modulename' and 'tag'� z%d.%d� r zutf-8r l �� �0x�Lr �0z_cffi_%s_%s%s%sF)$�_parser�_uses_new_featurer �ffi�preambler �flatten�_locate_engine_class�_vengine�patch_extension_kwds�flags�make_relative_to�kwds� TypeError�join�sys� version_infor � _cdefsourcesr �hex�binascii�crc32�lstrip�rstrip� 18 _class_key�_get_so_suffixes�_caller_dir_pycache�tmpdir�os�path�sourcefilename�modulefilename� ext_package� _has_source� _has_module)r r0 r1 rF � 19 modulenamerK �tag�force_generic_engine�source_extensionr6 � relative_tor8 Zflattened_kwdsZ vengine_class�key�k1�k2r r r r �__init__ sR �� 20 21 22 ��� 23 24 25 � 26 27 zVerifier.__init__c C sN | j j� | jr|du rtd��| �|� W d � dS 1 s w Y dS )zkWrite the C source code. It is produced in 'self.sourcefilename', 28 which can be tweaked beforehand.Nzsource code already written)r0 �_lockrL r � _write_source�r �filer r r � write_sourceI s 29 � "�zVerifier.write_sourcec C sR | j j� | jr td��| js| �� | �� W d � dS 1 s"w Y dS )z�Write the C source code (if not done already) and compile it. 30 This produces a dynamic link library in 'self.modulefilename'.zmodule already compiledN)r0 rW rM r rL rX �_compile_module�r r r r �compile_moduleR s 31 32 "�zVerifier.compile_modulec C s^ | j j�! | js| �� | js| js| �� | �� | �� W d � S 1 s(w Y dS )a" Get a C module from this Verifier instance. 33 Returns an instance of a FFILibrary class that behaves like the 34 objects returned by ffi.dlopen(), but that delegates all 35 operations to the C module. If necessary, the C code is written 36 and compiled first. 37 N)r0 rW rM �_locate_modulerL rX r\ � _load_libraryr] r r r � load_library\ s 38 $�zVerifier.load_libraryc C sB t j�| j�}|�dd�d }|�d�r ttd�r |d d� }|S )N�.r r �_d�gettotalrefcount�����)rG rH �basenamerJ �split�endswith�hasattrr; )r rf r r r �get_module_namel s 39 zVerifier.get_module_namec C sn t �� | js"| jj� | js| �� W d � n1 s w Y t �| j�}| �� }t j ||fi | j 40 ��S r ) r �_hack_at_distutilsrL r0 rW rX �maybe_relative_pathrI rj � get_extensionr8 )r � 41 sourcename�modnamer r r rm w s 42 � � zVerifier.get_extensionc C s | j jS r )r4 �_gen_python_moduler] r r r �generates_python_module� s z Verifier.generates_python_modulec sz |r;t j�|�r;t j�|�� |�� }tjD ]%}||v r:|| }t|ttf�s-t d|f ��� fdd�|D �}|||< q|S )Nz&keyword '%s' should be a list or tuplec s g | ] }t j�� |��qS r )rG rH r: )r �fn��dirnamer r r � s z-Verifier.make_relative_to.<locals>.<listcomp>) 43 rG rH rt �copyr �LIST_OF_FILE_NAMESr �list�tupler9 )r r8 rR rS �lstr rs r r7 � s 44 ��zVerifier.make_relative_toc C s� t j�| j�s:| jr$z t| jd d dg�}W n 45 ty Y d S w |j}nd }| j� | � 46 � |t � �}|d u r7d S || _| j� � d| _ d S )N�__doc__T)rG rH �isfilerJ rK � 47 __import__� ImportError�__path__r4 � find_modulerj rD � collect_typesrM )r �pkgrH �filenamer r r r_ � s" �� 48 49 zVerifier._locate_modulec C s( || j _z | j �� W | j `d S | j `w r )r4 �_f�write_source_to_frY r r r �_write_source_to� s zVerifier._write_source_toc C s� |d ur | � |� d S t� }| � |� |�� }tj�| j�r<t| jd��}|�� |k }W d � n1 s6w Y nd}|r`t | j� t| jd�� }|� 50 |� W d � n1 s[w Y d| _ d S )N�rT�w) r� r �getvaluerG rH �existsrI �open�read� _ensure_dirr rL )r rZ �fZ source_data�fpZ needs_writtenr r r rX � s" 51 �� 52 � 53 zVerifier._write_sourcec C sn t j�| j�}t�|| �� �}z t�|| j�}W n t y# d}Y nw |s2t 54 | j� t � || j� d| _ d S )NFT)rG rH rt rI r �compilerm �samefilerJ �OSErrorr� �shutil�moverM )r rF �outputfilename�samer r r r\ � s � 55 56 zVerifier._compile_modulec C s, | j sJ �| jd ur| j�| j�S | j�� S r )rM r6 r4 ra r] r r r r` � s 57 58 59 zVerifier._load_library)NNNr' Fr( NNr )r" r# r$ rV r[ r^ ra rj rm rq r7 r_ r� rX r\ r` r r r r r& s" 60 � 61 ) 62 63 64 r& Fc C sv t rd}|s'dtjv rd}nzdd l}W n ty d}Y nw | j|ur'd}|r2ddlm} |jS ddlm } |j 65 S )NT�__pypy__r �?r )� vengine_gen)� vengine_cpy) �_FORCE_GENERIC_ENGINEr; �builtin_module_names� _cffi_backendr} �_backendr' r� �VGenericEnginer� �VCPythonEngine)r0 rP r� r� r� r r r r3 � s" 66 � 67 r3 c C sH t rt S tj�d�} | r| S t�d�jj}tj� tj� 68 tj� |�d��S )NZ CFFI_TMPDIRr* � __pycache__) �_TMPDIRrG �environ�getr; � _getframe�f_code� co_filenamerH �abspathr: rt )�resultr� r r r rE � s �rE c C s | a dS )z:Set the temporary directory to use instead of __pycache__.N)r� rs r r r � 69 set_tmpdir s r� c C s | pt � } zt�| �}W n 70 ty Y dS w |r d}nt� d �� }|D ]-}|�� �d�rR|�� �|�s<|�� �d�rRz t�tj � 71 | |�� W q% tyQ Y q%w q%tj � 72 | d�g}|D ]-}z"t�|�D ]}tj � 73 ||�}tj � |�rz|� |� qet�|� qeW q] ty� Y q]w dS )z}Clean up the temporary directory by removing all files in it 74 called `_cffi_*.{c,so}` as well as the `build` subdirectory.Nr( r Z_cffi_�build) rE rG �listdirr� rD �lower� 75 startswithrh �unlinkrH r: �isdir�append)rF Zkeep_so�filelistr rr Z clean_dir�dirr r r �cleanup_tmpdir sD 76 � � � �� � ��r� c C s( t � } | stjdkrdg} | S dg} | S )N�win32z.pydz.so)r r; �platform)�suffixesr r r rD % s 77 �rD c C s2 t j�| �}|rt j�|�st �|� d S d S d S r )rG rH rt r� �makedirs)r� rt r r r r� 0 s �r� )NF) r; rG r? r� �ior' r r �errorr r< �importlib.machineryr r r �StringIOr �BytesIO�objectr& r� r3 r� rE r� r� rD r� r r r r �<module> s, ( 78 79 80 @ 81 82