def _unwrap_object(self, space, w_obj): from pypy.module._cppyy.interp_cppyy import W_CPPInstance if isinstance(w_obj, W_CPPInstance): if capi.c_is_subtype(space, w_obj.cppclass, self.cppclass): rawobject = w_obj.get_rawobject() offset = capi.c_base_offset(space, w_obj.cppclass, self.cppclass, rawobject, 1) obj_address = capi.direct_ptradd(rawobject, offset) return rffi.cast(capi.C_OBJECT, obj_address) raise oefmt(space.w_TypeError, "cannot pass %T as %s", w_obj, self.cppclass.name)
def _unwrap_object(self, space, w_obj): from pypy.module._cppyy.interp_cppyy import W_CPPInstance if isinstance(w_obj, W_CPPInstance): # w_obj could carry a 'hidden' smart ptr or be one, cover both cases have_match = False if w_obj.smartdecl and capi.c_is_subtype(space, w_obj.smartdecl, self.smartdecl): # hidden case, do not derefence when getting obj address have_match = True rawobject = w_obj._rawobject # TODO: this direct access if fugly offset = capi.c_base_offset(space, w_obj.smartdecl, self.smartdecl, rawobject, 1) elif capi.c_is_subtype(space, w_obj.clsdecl, self.smartdecl): # exposed smart pointer have_match = True rawobject = w_obj.get_rawobject() offset = capi.c_base_offset(space, w_obj.clsdecl, self.smartdecl, rawobject, 1) if have_match: obj_address = capi.direct_ptradd(rawobject, offset) return rffi.cast(capi.C_OBJECT, obj_address) raise oefmt(space.w_TypeError, "cannot pass %T instance as %s", w_obj, self.rawdecl.name)
def _unwrap_object(self, space, w_obj): from pypy.module._cppyy.interp_cppyy import W_CPPInstance if isinstance(w_obj, W_CPPInstance): from pypy.module._cppyy.interp_cppyy import INSTANCE_FLAGS_IS_RVALUE if w_obj.rt_flags & INSTANCE_FLAGS_IS_RVALUE: # reject moves as all are explicit raise ValueError("lvalue expected") if capi.c_is_subtype(space, w_obj.clsdecl, self.clsdecl): rawobject = w_obj.get_rawobject() offset = capi.c_base_offset(space, w_obj.clsdecl, self.clsdecl, rawobject, 1) obj_address = capi.direct_ptradd(rawobject, offset) return rffi.cast(capi.C_OBJECT, obj_address) raise oefmt(space.w_TypeError, "cannot pass %T instance as %s", w_obj, self.clsdecl.name)
def to_memory(self, space, w_obj, w_value, offset): # the actual data member is of object* type, but we receive a pointer to that # data member in order to modify its value, so by convention, the internal type # used is object** address = rffi.cast(rffi.VOIDPP, self._get_raw_address(space, w_obj, offset)) from pypy.module._cppyy.interp_cppyy import W_CPPInstance cppinstance = space.interp_w(W_CPPInstance, w_value, can_be_None=True) if cppinstance: rawobject = cppinstance.get_rawobject() offset = capi.c_base_offset(space, cppinstance.clsdecl, self.clsdecl, rawobject, 1) obj_address = capi.direct_ptradd(rawobject, offset) address[0] = rffi.cast(rffi.VOIDP, obj_address); # register the value for potential recycling from pypy.module._cppyy.interp_cppyy import memory_regulator memory_regulator.register(cppinstance) else: raise oefmt(space.w_TypeError, "cannot pass %T instance as %s", w_value, self.clsdecl.name)
def to_memory(self, space, w_obj, w_value, offset): from pypy.module._cppyy.interp_cppyy import W_CPPInstance cppinstance = space.interp_w(W_CPPInstance, w_value, can_be_None=True) if cppinstance: # get the object address from value, correct for hierarchy offset rawobject = cppinstance.get_rawobject() base_offset = capi.c_base_offset(space, cppinstance.clsdecl, self.clsdecl, rawobject, 1) rawptr = capi.direct_ptradd(rawobject, base_offset) # get the data member address and write the pointer in address = rffi.cast(rffi.VOIDPP, self._get_raw_address(space, w_obj, offset)) address[0] = rffi.cast(rffi.VOIDP, rawptr) # register the value object for potential recycling from pypy.module._cppyy.interp_cppyy import memory_regulator memory_regulator.register(cppinstance) else: raise oefmt(space.w_TypeError, "cannot pass %T instance as %s", w_value, self.clsdecl.name)