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views.h
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#ifndef _MULTIDICT_VIEWS_H #define _MULTIDICT_VIEWS_H #ifdef __cplusplus extern "C" { #endif static PyTypeObject multidict_itemsview_type; static PyTypeObject multidict_valuesview_type; static PyTypeObject multidict_keysview_type; static PyObject *viewbaseset_richcmp_func; static PyObject *viewbaseset_and_func; static PyObject *viewbaseset_or_func; static PyObject *viewbaseset_sub_func; static PyObject *viewbaseset_xor_func; static PyObject *abc_itemsview_register_func; static PyObject *abc_keysview_register_func; static PyObject *abc_valuesview_register_func; static PyObject *itemsview_isdisjoint_func; static PyObject *itemsview_repr_func; static PyObject *keysview_repr_func; static PyObject *keysview_isdisjoint_func; static PyObject *valuesview_repr_func; typedef struct { PyObject_HEAD PyObject *md; } _Multidict_ViewObject; /********** Base **********/ static inline void _init_view(_Multidict_ViewObject *self, PyObject *md) { Py_INCREF(md); self->md = md; } static inline void multidict_view_dealloc(_Multidict_ViewObject *self) { PyObject_GC_UnTrack(self); Py_XDECREF(self->md); PyObject_GC_Del(self); } static inline int multidict_view_traverse(_Multidict_ViewObject *self, visitproc visit, void *arg) { Py_VISIT(self->md); return 0; } static inline int multidict_view_clear(_Multidict_ViewObject *self) { Py_CLEAR(self->md); return 0; } static inline Py_ssize_t multidict_view_len(_Multidict_ViewObject *self) { return pair_list_len(&((MultiDictObject*)self->md)->pairs); } static inline PyObject * multidict_view_richcompare(PyObject *self, PyObject *other, int op) { PyObject *ret; PyObject *op_obj = PyLong_FromLong(op); if (op_obj == NULL) { return NULL; } ret = PyObject_CallFunctionObjArgs( viewbaseset_richcmp_func, self, other, op_obj, NULL); Py_DECREF(op_obj); return ret; } static inline PyObject * multidict_view_and(PyObject *self, PyObject *other) { return PyObject_CallFunctionObjArgs( viewbaseset_and_func, self, other, NULL); } static inline PyObject * multidict_view_or(PyObject *self, PyObject *other) { return PyObject_CallFunctionObjArgs( viewbaseset_or_func, self, other, NULL); } static inline PyObject * multidict_view_sub(PyObject *self, PyObject *other) { return PyObject_CallFunctionObjArgs( viewbaseset_sub_func, self, other, NULL); } static inline PyObject * multidict_view_xor(PyObject *self, PyObject *other) { return PyObject_CallFunctionObjArgs( viewbaseset_xor_func, self, other, NULL); } static PyNumberMethods multidict_view_as_number = { .nb_subtract = (binaryfunc)multidict_view_sub, .nb_and = (binaryfunc)multidict_view_and, .nb_xor = (binaryfunc)multidict_view_xor, .nb_or = (binaryfunc)multidict_view_or, }; /********** Items **********/ static inline PyObject * multidict_itemsview_new(PyObject *md) { _Multidict_ViewObject *mv = PyObject_GC_New( _Multidict_ViewObject, &multidict_itemsview_type); if (mv == NULL) { return NULL; } _init_view(mv, md); PyObject_GC_Track(mv); return (PyObject *)mv; } static inline PyObject * multidict_itemsview_iter(_Multidict_ViewObject *self) { return multidict_items_iter_new((MultiDictObject*)self->md); } static inline PyObject * multidict_itemsview_repr(_Multidict_ViewObject *self) { return PyObject_CallFunctionObjArgs( itemsview_repr_func, self, NULL); } static inline PyObject * multidict_itemsview_isdisjoint(_Multidict_ViewObject *self, PyObject *other) { return PyObject_CallFunctionObjArgs( itemsview_isdisjoint_func, self, other, NULL); } PyDoc_STRVAR(itemsview_isdisjoint_doc, "Return True if two sets have a null intersection."); static PyMethodDef multidict_itemsview_methods[] = { { "isdisjoint", (PyCFunction)multidict_itemsview_isdisjoint, METH_O, itemsview_isdisjoint_doc }, { NULL, NULL } /* sentinel */ }; static inline int multidict_itemsview_contains(_Multidict_ViewObject *self, PyObject *obj) { PyObject *akey = NULL, *aval = NULL, *bkey = NULL, *bval = NULL, *iter = NULL, *item = NULL; int ret1, ret2; if (!PyTuple_Check(obj) || PyTuple_GET_SIZE(obj) != 2) { return 0; } bkey = PyTuple_GET_ITEM(obj, 0); bval = PyTuple_GET_ITEM(obj, 1); iter = multidict_itemsview_iter(self); if (iter == NULL) { return 0; } while ((item = PyIter_Next(iter)) != NULL) { akey = PyTuple_GET_ITEM(item, 0); aval = PyTuple_GET_ITEM(item, 1); ret1 = PyObject_RichCompareBool(akey, bkey, Py_EQ); if (ret1 < 0) { Py_DECREF(iter); Py_DECREF(item); return -1; } ret2 = PyObject_RichCompareBool(aval, bval, Py_EQ); if (ret2 < 0) { Py_DECREF(iter); Py_DECREF(item); return -1; } if (ret1 > 0 && ret2 > 0) { Py_DECREF(iter); Py_DECREF(item); return 1; } Py_DECREF(item); } Py_DECREF(iter); if (PyErr_Occurred()) { return -1; } return 0; } static PySequenceMethods multidict_itemsview_as_sequence = { .sq_length = (lenfunc)multidict_view_len, .sq_contains = (objobjproc)multidict_itemsview_contains, }; static PyTypeObject multidict_itemsview_type = { PyVarObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type), 0) "multidict._multidict._ItemsView", /* tp_name */ sizeof(_Multidict_ViewObject), /* tp_basicsize */ .tp_dealloc = (destructor)multidict_view_dealloc, .tp_repr = (reprfunc)multidict_itemsview_repr, .tp_as_number = &multidict_view_as_number, .tp_as_sequence = &multidict_itemsview_as_sequence, .tp_getattro = PyObject_GenericGetAttr, .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, .tp_traverse = (traverseproc)multidict_view_traverse, .tp_clear = (inquiry)multidict_view_clear, .tp_richcompare = multidict_view_richcompare, .tp_iter = (getiterfunc)multidict_itemsview_iter, .tp_methods = multidict_itemsview_methods, }; /********** Keys **********/ static inline PyObject * multidict_keysview_new(PyObject *md) { _Multidict_ViewObject *mv = PyObject_GC_New( _Multidict_ViewObject, &multidict_keysview_type); if (mv == NULL) { return NULL; } _init_view(mv, md); PyObject_GC_Track(mv); return (PyObject *)mv; } static inline PyObject * multidict_keysview_iter(_Multidict_ViewObject *self) { return multidict_keys_iter_new(((MultiDictObject*)self->md)); } static inline PyObject * multidict_keysview_repr(_Multidict_ViewObject *self) { return PyObject_CallFunctionObjArgs( keysview_repr_func, self, NULL); } static inline PyObject * multidict_keysview_isdisjoint(_Multidict_ViewObject *self, PyObject *other) { return PyObject_CallFunctionObjArgs( keysview_isdisjoint_func, self, other, NULL); } PyDoc_STRVAR(keysview_isdisjoint_doc, "Return True if two sets have a null intersection."); static PyMethodDef multidict_keysview_methods[] = { { "isdisjoint", (PyCFunction)multidict_keysview_isdisjoint, METH_O, keysview_isdisjoint_doc }, { NULL, NULL } /* sentinel */ }; static inline int multidict_keysview_contains(_Multidict_ViewObject *self, PyObject *key) { return pair_list_contains(&((MultiDictObject*)self->md)->pairs, key); } static PySequenceMethods multidict_keysview_as_sequence = { .sq_length = (lenfunc)multidict_view_len, .sq_contains = (objobjproc)multidict_keysview_contains, }; static PyTypeObject multidict_keysview_type = { PyVarObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type), 0) "multidict._multidict._KeysView", /* tp_name */ sizeof(_Multidict_ViewObject), /* tp_basicsize */ .tp_dealloc = (destructor)multidict_view_dealloc, .tp_repr = (reprfunc)multidict_keysview_repr, .tp_as_number = &multidict_view_as_number, .tp_as_sequence = &multidict_keysview_as_sequence, .tp_getattro = PyObject_GenericGetAttr, .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, .tp_traverse = (traverseproc)multidict_view_traverse, .tp_clear = (inquiry)multidict_view_clear, .tp_richcompare = multidict_view_richcompare, .tp_iter = (getiterfunc)multidict_keysview_iter, .tp_methods = multidict_keysview_methods, }; /********** Values **********/ static inline PyObject * multidict_valuesview_new(PyObject *md) { _Multidict_ViewObject *mv = PyObject_GC_New( _Multidict_ViewObject, &multidict_valuesview_type); if (mv == NULL) { return NULL; } _init_view(mv, md); PyObject_GC_Track(mv); return (PyObject *)mv; } static inline PyObject * multidict_valuesview_iter(_Multidict_ViewObject *self) { return multidict_values_iter_new(((MultiDictObject*)self->md)); } static inline PyObject * multidict_valuesview_repr(_Multidict_ViewObject *self) { return PyObject_CallFunctionObjArgs( valuesview_repr_func, self, NULL); } static PySequenceMethods multidict_valuesview_as_sequence = { .sq_length = (lenfunc)multidict_view_len, }; static PyTypeObject multidict_valuesview_type = { PyVarObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type), 0) "multidict._multidict._ValuesView", /* tp_name */ sizeof(_Multidict_ViewObject), /* tp_basicsize */ .tp_dealloc = (destructor)multidict_view_dealloc, .tp_repr = (reprfunc)multidict_valuesview_repr, .tp_as_sequence = &multidict_valuesview_as_sequence, .tp_getattro = PyObject_GenericGetAttr, .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, .tp_traverse = (traverseproc)multidict_view_traverse, .tp_clear = (inquiry)multidict_view_clear, .tp_iter = (getiterfunc)multidict_valuesview_iter, }; static inline int multidict_views_init() { PyObject *reg_func_call_result = NULL; PyObject *module = PyImport_ImportModule("multidict._multidict_base"); if (module == NULL) { goto fail; } #define GET_MOD_ATTR(VAR, NAME) \ VAR = PyObject_GetAttrString(module, NAME); \ if (VAR == NULL) { \ goto fail; \ } GET_MOD_ATTR(viewbaseset_richcmp_func, "_viewbaseset_richcmp"); GET_MOD_ATTR(viewbaseset_and_func, "_viewbaseset_and"); GET_MOD_ATTR(viewbaseset_or_func, "_viewbaseset_or"); GET_MOD_ATTR(viewbaseset_sub_func, "_viewbaseset_sub"); GET_MOD_ATTR(viewbaseset_xor_func, "_viewbaseset_xor"); GET_MOD_ATTR(abc_itemsview_register_func, "_abc_itemsview_register"); GET_MOD_ATTR(abc_keysview_register_func, "_abc_keysview_register"); GET_MOD_ATTR(abc_valuesview_register_func, "_abc_valuesview_register"); GET_MOD_ATTR(itemsview_repr_func, "_itemsview_isdisjoint"); GET_MOD_ATTR(itemsview_repr_func, "_itemsview_repr"); GET_MOD_ATTR(keysview_repr_func, "_keysview_repr"); GET_MOD_ATTR(keysview_isdisjoint_func, "_keysview_isdisjoint"); GET_MOD_ATTR(valuesview_repr_func, "_valuesview_repr"); if (PyType_Ready(&multidict_itemsview_type) < 0 || PyType_Ready(&multidict_valuesview_type) < 0 || PyType_Ready(&multidict_keysview_type) < 0) { goto fail; } // abc.ItemsView.register(_ItemsView) reg_func_call_result = PyObject_CallFunctionObjArgs( abc_itemsview_register_func, (PyObject*)&multidict_itemsview_type, NULL); if (reg_func_call_result == NULL) { goto fail; } Py_DECREF(reg_func_call_result); // abc.KeysView.register(_KeysView) reg_func_call_result = PyObject_CallFunctionObjArgs( abc_keysview_register_func, (PyObject*)&multidict_keysview_type, NULL); if (reg_func_call_result == NULL) { goto fail; } Py_DECREF(reg_func_call_result); // abc.ValuesView.register(_KeysView) reg_func_call_result = PyObject_CallFunctionObjArgs( abc_valuesview_register_func, (PyObject*)&multidict_valuesview_type, NULL); if (reg_func_call_result == NULL) { goto fail; } Py_DECREF(reg_func_call_result); Py_DECREF(module); return 0; fail: Py_CLEAR(module); return -1; #undef GET_MOD_ATTR } #ifdef __cplusplus } #endif #endif