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verifier.cpython-39.pyc
a ( `+ @ s d dl Z d dlZd dlZd dlZd dlZddlmZ ddlmZ ddlm Z e j dkrhd dl Z dd Z nd dlZd d Z e j d krejZnG d d d ejZG d d deZdZdd Zdadd Zdd Zd ddZdd Zdd ZdS ) N ) __version_verifier_modules__) ffiplatform)VerificationError) r c C s t jjd d S N) importlib machineryEXTENSION_SUFFIXES r r 3/usr/lib64/python3.9/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).0suffix_typer r r <listcomp> s z'_extension_suffixes.<locals>.<listcomp>)r Z get_suffixesr r r r r s r c s e Zd Z fddZ ZS )NativeIOc s( t |tr|d}tt| | d S )Nascii) isinstanceZunicodeencodesuperr write)selfs __class__r r r s zNativeIO.write)__name__ __module__ __qualname__r __classcell__r r r r r s r c @ sz e Zd Zd ddZd ddZd d Zd d Zd d Zdd Zdd Z dd Z dd Z dd Z d!ddZ dd Zd d ZdS )"VerifierN F.cc K sv |j jrtd|j jf || _|| _|s4t| } t||} | | | _| j | | | _ | | | | _ |rz|rxt dndtjd d t|| g|j }tjdkr|d}tt|dd d d @ }|d d }tt|d d d d @ }|d d }d|| jj||f }t d }|p0t | _ 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' r r zutf-8r l 0xLr 0z_cffi_%s_%s%s%sF)%Z_parserZ_uses_new_featurer ffipreambler Zflatten_locate_engine_class_vengineZpatch_extension_kwdsflagsmake_relative_tokwds TypeErrorjoinsysversionr Z _cdefsources version_infor hexbinasciicrc32lstriprstripZ _class_key_get_so_suffixes_caller_dir_pycachetmpdirospathsourcefilenamemodulefilename ext_package _has_source _has_module)r r, r- r? Z modulenamerD tagforce_generic_engineZsource_extensionr0 relative_tor2 Zflattened_kwdsZ vengine_classkeyZk1Zk2r r r r __init__ sN zVerifier.__init__c C sL | j j0 | jr |du r td| | W d n1 s>0 Y dS )zkWrite the C source code. It is produced in 'self.sourcefilename', which can be tweaked beforehand.Nzsource code already written)r, _lockrE r _write_sourcer filer r r write_sourceH s zVerifier.write_sourcec C sP | j j4 | jrtd| js&| | W d n1 sB0 Y dS )zWrite the C source code (if not done already) and compile it. This produces a dynamic link library in 'self.modulefilename'.zmodule already compiledN)r, rL rF r rE rM _compile_moduler r r r compile_moduleQ s zVerifier.compile_modulec C s^ | j jB | js4| | js4| js,| | | W d S 1 sP0 Y dS )a" Get a C module from this Verifier instance. Returns an instance of a FFILibrary class that behaves like the objects returned by ffi.dlopen(), but that delegates all operations to the C module. If necessary, the C code is written and compiled first. N)r, rL rF _locate_modulerE rM rQ _load_libraryrR r r r load_library[ s zVerifier.load_libraryc C sB t j| j}|ddd }|dr>ttdr>|d d }|S )N.r r Z_dZgettotalrefcount)r@ rA basenamerC splitendswithhasattrr5 )r rY r r r get_module_namek s zVerifier.get_module_namec C sn t | jsD| jj | js&| W d n1 s:0 Y t | j}| }t j ||fi | j S r ) r Z_hack_at_distutilsrE r, rL rM Zmaybe_relative_pathrB r] get_extensionr2 )r Z sourcenamemodnamer r r r^ v s & zVerifier.get_extensionc C s | j jS r )r/ Z_gen_python_modulerR r r r generates_python_module s z Verifier.generates_python_modulec sz |rvt j|rvt j| | }tjD ]J}||v r*|| }t|ttfsZt d|f fdd|D }|||< q*|S )Nz&keyword '%s' should be a list or tuplec s g | ]}t j |qS r )r@ rA r4 )r fndirnamer r r z-Verifier.make_relative_to.<locals>.<listcomp>) r@ rA rc copyr ZLIST_OF_FILE_NAMESr listtupler3 )r r2 rI rJ Zlstr rb r r1 s zVerifier.make_relative_toc C s t j| jst| jrHzt| jd d dg}W n ty> Y d S 0 |j}nd }| j | |t }|d u rnd S || _| j d| _ d S )N__doc__T)r@ rA isfilerC rD __import__ ImportError__path__r/ find_moduler] r= Z collect_typesrF )r pkgrA filenamer r r rT s zVerifier._locate_modulec C s* || j _z| j W | j `n| j `0 d S r )r/ Z_fZwrite_source_to_frN r r r _write_source_to s zVerifier._write_source_toc C s |d ur| | nt }| | | }tj| jrvt| jd }| |k }W d qz1 sj0 Y nd}|rt | j t| jd}| | W d n1 s0 Y d| _ d S )NrTw) rp r getvaluer@ rA existsrB openread _ensure_dirr rE )r rO fZ source_datafpZ needs_writtenr r r rM s . (zVerifier._write_sourcec C sn t j| j}t|| }zt|| j}W n t yF d}Y n0 |sdt | j t || j d| _ d S )NFT)r@ rA rc rB r compiler^ samefilerC OSErrorrw shutilmoverF )r r? ZoutputfilenameZsamer r r rQ s zVerifier._compile_modulec C s0 | j s J | jd ur"| j| jS | j S d S r )rF r0 r/ rV rR r r r rU s zVerifier._load_library)NNNr% Fr& NN)N)N)r r! r" rK rP rS rV r] r^ r` r1 rT rp rM rQ rU r r r r r$ s ( r$ Fc C sz t rd}|sNdtjv r d}n2z dd l}W n ty> d}Y n0 | j|urNd}|rdddlm} |jS ddlm } |j S d S )NTZ__pypy__r ?r ) vengine_gen) vengine_cpy) _FORCE_GENERIC_ENGINEr5 builtin_module_names _cffi_backendrk Z_backendr% r ZVGenericEnginer ZVCPythonEngine)r, rH r r r r r r r. s r. c C sH t rt S tjd} | r | S tdjj}tj tj tj |dS )NZ CFFI_TMPDIRr( __pycache__) _TMPDIRr@ environgetr5 _getframef_code co_filenamerA abspathr4 rc )resultro r r r r> s r> c C s | a dS )z:Set the temporary directory to use instead of __pycache__.N)r rb r r r set_tmpdir s r c C s | pt } zt| }W n ty, Y dS 0 |r8d}nt d }|D ]Z}| drJ| |sx| drJzttj | | W qJ ty Y qJ0 qJtj | dg}|D ]^}zDt|D ]4}tj ||}tj |r| | qt| qW q ty Y q0 qdS )z}Clean up the temporary directory by removing all files in it called `_cffi_*.{c,so}` as well as the `build` subdirectory.Nr& r Z_cffi_Zbuild) r> r@ listdirr| r= lower startswithr[ unlinkrA r4 isdirappend)r? Zkeep_soZfilelistr ra Z clean_dirdirr r r cleanup_tmpdir s8 r c C s& t } | s"tjdkr dg} ndg} | S )Nwin32z.pydz.so)r r5 platform)suffixesr r r r= $ s r= c C s* t j| }|r&t j|s&t | d S r )r@ rA rc r makedirs)ro rc r r r rw / s rw )NF) r5 r@ r9 r} ior% r r errorr r7 Zimportlib.machineryr r r StringIOr BytesIOobjectr$ r r. r r> r r r= rw r r r r <module> s* ( ?