o í@Ëa_ã@s<dZddlmZddlmZddlmZGdd„deƒZdS)z* DeadCodeElimination remove useless code. é)Ú DefUseChains)ÚTransformationNcs(eZdZdZ‡fdd„Zdd„Z‡ZS)ÚRemoveDeadFunctionsa7 Remove useless local functions >>> import gast as ast >>> from pythran import passmanager, backend, metadata >>> pm = passmanager.PassManager("test") >>> node = ast.parse("def foo(): return 1") >>> _, node = pm.apply(RemoveDeadFunctions, node) >>> print(pm.dump(backend.Python, node)) def foo(): return 1 >>> node = ast.parse("def foo(): return 1") >>> metadata.add(node.body[0], metadata.Local()) >>> _, node = pm.apply(RemoveDeadFunctions, node) >>> print(pm.dump(backend.Python, node)) cstt|ƒ t¡dS)N)ÚsuperrÚ__init__r)Úself©Ú __class__©úM/usr/lib/python3/dist-packages/pythran/optimizations/remove_dead_functions.pyrszRemoveDeadFunctions.__init__cCs,t |tj¡r|jj| ¡sd|_dS|S)NT)ÚmetadataÚgetZLocalZdef_use_chainsZchainsZusersÚupdate)rZnoder r r Úvisit_FunctionDefs z%RemoveDeadFunctions.visit_FunctionDef)Ú__name__Ú __module__Ú __qualname__Ú__doc__rrÚ __classcell__r r rr rs r)rZpythran.analysesrZpythran.passmanagerrZpythran.metadatar rr r r r Ús