ó î&]\c@s§ddlmZddlZejejƒjdZdade fd„ƒYa d„Z de fd „ƒYZ dd „Zd „Zd „Zdd „Zd„ZdS(i(t _ccallback_ciÿÿÿÿNitCDatacBseZRS((t__name__t __module__(((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR scCsStdk rdSy%ddl}|jƒatjaWntk rNtanXdS(Niÿÿÿÿ(tffitNonetcffitFFIRt ImportErrortFalse(R((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyt _import_cffi s     tLowLevelCallablecBsŒeZdZd Zd d d„Zd„Zed„ƒZed„ƒZ ed„ƒZ d„Z e d d d„ƒZ e d d d„ƒZRS( s¤ Low-level callback function. Parameters ---------- function : {PyCapsule, ctypes function pointer, cffi function pointer} Low-level callback function. user_data : {PyCapsule, ctypes void pointer, cffi void pointer} User data to pass on to the callback function. signature : str, optional Signature of the function. If omitted, determined from *function*, if possible. Attributes ---------- function Callback function given user_data User data given signature Signature of the function. Methods ------- from_cython Class method for constructing callables from Cython C-exported functions. Notes ----- The argument ``function`` can be one of: - PyCapsule, whose name contains the C function signature - ctypes function pointer - cffi function pointer The signature of the low-level callback must match one of those expected by the routine it is passed to. If constructing low-level functions from a PyCapsule, the name of the capsule must be the corresponding signature, in the format:: return_type (arg1_type, arg2_type, ...) For example:: "void (double)" "double (double, int *, void *)" The context of a PyCapsule passed in as ``function`` is used as ``user_data``, if an explicit value for `user_data` was not given. cCs.|j|||ƒ}tj||||fƒS(N(t_parse_callbackttuplet__new__(tclstfunctiont user_datat signaturetitem((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyRTscCsdj|j|jƒS(NsLowLevelCallable({!r}, {!r})(tformatRR(tself((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyt__repr__ZscCstj|dƒS(Ni(R t __getitem__(R((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR]scCstj|dƒS(Ni(R R(R((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyRascCstjtj|dƒƒS(Ni(Rtget_capsule_signatureR R(R((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyRescCs tƒ‚dS(N(t ValueError(Rtidx((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyRiscCsfy|j|}WnBtk r0tdƒ‚n&tk rUtdj|ƒƒ‚nX||||ƒS(s Create a low-level callback function from an exported Cython function. Parameters ---------- module : module Cython module where the exported function resides name : str Name of the exported function user_data : {PyCapsule, ctypes void pointer, cffi void pointer}, optional User data to pass on to the callback function. signature : str, optional Signature of the function. If omitted, determined from *function*. s?Given module is not a Cython module with __pyx_capi__ attributes4No function {!r} found in __pyx_capi__ of the module(t __pyx_capi__tAttributeErrorRtKeyErrorR(RtmoduletnameRRR((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyt from_cythonls  cCs(tƒt|tƒr+tj|dƒ}nrt|tƒrRt||ƒ\}}nKt|tƒryt||ƒ\}}n$t j |ƒr‘|}n t dƒ‚t|t j ƒr¾t|ƒ}nWt|tƒrÜt|ƒ}n9|dkrñd}n$t j |ƒr |}n t dƒ‚t j|||ƒS(NisMGiven input is not a callable or a low-level callable (pycapsule/ctypes/cffi)sNGiven user data is not a valid low-level void* pointer (pycapsule/ctypes/cffi)(R t isinstanceR R Rt PyCFuncPtrt_get_ctypes_funcRt_get_cffi_funcRt check_capsuleRtctypestc_void_pt_get_ctypes_datat_get_cffi_dataRtget_raw_capsule(RtobjRRtfunctcontext((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR …s(      (N(RRt__doc__t __slots__RRRtpropertyRRRRt classmethodR R (((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR s5  cCs¡tj|tjƒj}|dkr—t|jƒd}xPt|jƒD]?\}}|dkrr|t|ƒ7}qG|dt|ƒ7}qGW|d7}n||fS(Ns (is, t)( R&tcastR'tvalueRt_typename_from_ctypestrestypet enumeratetargtypes(R,Rtfunc_ptrtjtarg((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR#¦s   cCs|dkrdS|tjkr#dS|j}d}x'|jdƒr[|d7}|d}q5W|jdƒrx|d}n|dkr™|d d |7}n|S( Ntvoidsvoid *itLP_iitc_it t*(RR&R'Rt startswith(RRt pointer_level((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR5·s     cCstj|tjƒjS(N(R&R3R'R4(tdata((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR(ÍscCsOtjd|ƒ}|dkrEtjtj|ƒƒjddƒ}n||fS(Nt uintptr_ts(*)R?(RR3Rtgetctypettypeoftreplace(R,RR9((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR$Ös 'cCstjd|ƒS(NRD(RR3(RC((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyR)ás(tRR&t CFUNCTYPER't __bases__R"RRtobjectRR R R R#R5R(R$R)(((s4lib/python2.7/site-packages/scipy/_lib/_ccallback.pyts  Œ