B b@sdZddlZddlZddlZddlmZmZGdddejj Z e ddd Z Gd d d Z d d ZGdddejj ZGdddZddZdS)z"Dependency scanner for C/C++ code.N) ClassicCPP FindPathDirscs@eZdZdZfddZddZddZdd Zd d ZZ S) SConsCPPScannerzSCons-specific subclass of the cpp.py module's processing. We subclass this so that: 1) we can deal with files represented by Nodes, not strings; 2) we can keep track of the files that are missing. cstj||g|_dS)N)super__init__missing)selfargskwargs) __class__.lib/python3.7/site-packages/SCons/Scanner/C.pyr'szSConsCPPScanner.__init__cCstj|g|_dS)N)SConsUtil UniqueListresult)r fnamer r rinitialize_result+sz!SConsCPPScanner.initialize_resultcCs|jddS)Nr)r)r rr r rfinalize_result.szSConsCPPScanner.finalize_resultcCs:|\}}}tjj||j|}|s6|j||jf|S)N)rNodeFS find_file searchpathrappend current_file)r tkeywordquoterrr r rfind_include_file1s  z!SConsCPPScanner.find_include_filec Cs^y$tt| }|SQRXWn4tk rX}z|j||jfdSd}~XYnXdS)N)openstrrfilereadEnvironmentErrorrrr)r filefper r r read_file8s zSConsCPPScanner.read_file) __name__ __module__ __qualname____doc__rrrrr) __classcell__r r )r rr s  r)returnc Cs|di}|dkriStj|ri}xX|D]P}tj|rvy|d||d<Wq~tk rrd||d<Yq~Xq.d||<q.W|Stj|s|diS|S)z'Returns CPPDEFINES converted to a dict.Z CPPDEFINESNrr)getrrZ is_Sequence IndexErrorZis_Dict)envZ cppdefinesrcr r rdictify_CPPDEFINES@s       r4c@s2eZdZdZddZd ddZddZd d Zd S) SConsCPPScannerWrappera5The SCons wrapper around a cpp.py scanner. This is the actual glue between the calling conventions of generic SCons scanners, and the (subclass of) cpp.py class that knows how to look for #include lines with reasonably real C-preprocessor-like evaluation of #if/#ifdef/#else/#elif lines. cCs||_t||_dS)N)namerpath)r r6variabler r rr^szSConsCPPScannerWrapper.__init__r cCsPt||t|d}||}x,|jD]"\}}tjtjjd||fq&W|S)N)currentcpppathdictzJNo dependency generated for file: %s (included from: %s) -- file not found)rget_dirr4rrWarningswarnDependencyWarning)r noder2r7cpprincludedincluderr r r__call__bszSConsCPPScannerWrapper.__call__cCs|S)Nr )r nodesr r r recurse_nodesosz$SConsCPPScannerWrapper.recurse_nodescCs|S)Nr )r r@r r rselectqszSConsCPPScannerWrapper.selectN)r )r*r+r,r-rrDrFrGr r r rr5Us  r5cCstdddd}|S)z^Return a prototype Scanner instance for scanning source files that use the C pre-processorCScannerz $CPPSUFFIXESCPPPATHz8^[ \t]*#[ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|"))r)Zcsr r rrHts rHcs8eZdZdZfddZddZddZdd ZZS) SConsCPPConditionalScannerzSCons-specific subclass of the cpp.py module's processing. We subclass this so that: 1) we can deal with files represented by Nodes, not strings; 2) we can keep track of the files that are missing. cstj||g|_g|_dS)N)rrr _known_paths)r r r )r r rrsz#SConsCPPConditionalScanner.__init__cCstj|g|_dS)N)rrrr)r rr r rrsz,SConsCPPConditionalScanner.initialize_resultc Cs|\}}}t|j|j|}|dkr4|jjf|}tjj||}|r| }xB|j|D] }| | r\|j |Pq\Wn|j ||jf|S)N") tuplerKrrdirrrrrZ get_abspath startswithrr) r rrrrpathsrZ result_pathpr r rrs  z,SConsCPPConditionalScanner.find_include_filec CsPy$tt| }|SQRXWn&tk rJ|j||jfdSXdS)Nr )r!r"r#r$r%rrr)r r&r'r r rr)s z$SConsCPPConditionalScanner.read_file) r*r+r,r-rrrr)r.r r )r rrJs  rJc@s2eZdZdZddZd ddZdd Zd d Zd S)!SConsCPPConditionalScannerWrappera: The SCons wrapper around a cpp.py scanner. This is the actual glue between the calling conventions of generic SCons scanners, and the (subclass of) cpp.py class that knows how to look for #include lines with reasonably real C-preprocessor-like evaluation of #if/#ifdef/#else/#elif lines. cCs||_t||_dS)N)r6rr7)r r6r8r r rrsz*SConsCPPConditionalScannerWrapper.__init__r c CsVt||t||d}||}x0|jD]&\}}d} tjtjj| ||fq(W|S)N)r9r:r;depthzJNo dependency generated for file: %s (included from: %s) -- file not found)rJr<r4rrr=r>r?) r r@r2r7rTrArrBrCZfmtr r rrDsz*SConsCPPConditionalScannerWrapper.__call__cCs|S)Nr )r rEr r rrFsz/SConsCPPConditionalScannerWrapper.recurse_nodescCs|S)Nr )r r@r r rrGsz(SConsCPPConditionalScannerWrapper.selectN)r rS)r*r+r,r-rrDrFrGr r r rrRs  rRcCs tddS)z Return an advanced conditional Scanner instance for scanning source files Interprets C/C++ Preprocessor conditional syntax (#ifdef, #if, defined, #else, #elif, etc.). CConditionalScannerrI)rRr r r rrUsrU)r-Z SCons.Node.FSrZ SCons.cppZ SCons.Utilr rrrAZ PreProcessorrr;r4r5rHrJrRrUr r r rs )$