+
+generator_utility_code = UtilityCode(
+proto="""
+static PyObject *__Pyx_Generator_Next(PyObject *self);
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value);
+static PyObject *__Pyx_Generator_Close(PyObject *self);
+static PyObject *__Pyx_Generator_Throw(PyObject *gen, PyObject *args, CYTHON_UNUSED PyObject *kwds);
+
+typedef PyObject *(*__pyx_generator_body_t)(PyObject *, PyObject *);
+""",
+impl="""
+static CYTHON_INLINE void __Pyx_Generator_ExceptionClear(struct __pyx_Generator_object *self)
+{
+ Py_XDECREF(self->exc_type);
+ Py_XDECREF(self->exc_value);
+ Py_XDECREF(self->exc_traceback);
+
+ self->exc_type = NULL;
+ self->exc_value = NULL;
+ self->exc_traceback = NULL;
+}
+
+static CYTHON_INLINE PyObject *__Pyx_Generator_SendEx(struct __pyx_Generator_object *self, PyObject *value)
+{
+ PyObject *retval;
+
+ if (self->is_running) {
+ PyErr_SetString(PyExc_ValueError,
+ "generator already executing");
+ return NULL;
+ }
+
+ if (self->resume_label == 0) {
+ if (value && value != Py_None) {
+ PyErr_SetString(PyExc_TypeError,
+ "can't send non-None value to a "
+ "just-started generator");
+ return NULL;
+ }
+ }
+
+ if (self->resume_label == -1) {
+ PyErr_SetNone(PyExc_StopIteration);
+ return NULL;
+ }
+
+
+ if (value)
+ __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value, &self->exc_traceback);
+ else
+ __Pyx_Generator_ExceptionClear(self);
+
+ self->is_running = 1;
+ retval = self->body((PyObject *) self, value);
+ self->is_running = 0;
+
+ if (retval)
+ __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value, &self->exc_traceback);
+ else
+ __Pyx_Generator_ExceptionClear(self);
+
+ return retval;
+}
+
+static PyObject *__Pyx_Generator_Next(PyObject *self)
+{
+ return __Pyx_Generator_SendEx((struct __pyx_Generator_object *) self, Py_None);
+}
+
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value)
+{
+ return __Pyx_Generator_SendEx((struct __pyx_Generator_object *) self, value);
+}
+
+static PyObject *__Pyx_Generator_Close(PyObject *self)
+{
+ struct __pyx_Generator_object *generator = (struct __pyx_Generator_object *) self;
+ PyObject *retval;
+#if PY_VERSION_HEX < 0x02050000
+ PyErr_SetNone(PyExc_StopIteration);
+#else
+ PyErr_SetNone(PyExc_GeneratorExit);
+#endif
+ retval = __Pyx_Generator_SendEx(generator, NULL);
+ if (retval) {
+ Py_DECREF(retval);
+ PyErr_SetString(PyExc_RuntimeError,
+ "generator ignored GeneratorExit");
+ return NULL;
+ }
+#if PY_VERSION_HEX < 0x02050000
+ if (PyErr_ExceptionMatches(PyExc_StopIteration))
+#else
+ if (PyErr_ExceptionMatches(PyExc_StopIteration)
+ || PyErr_ExceptionMatches(PyExc_GeneratorExit))
+#endif
+ {
+ PyErr_Clear(); /* ignore these errors */
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ return NULL;
+}
+
+static PyObject *__Pyx_Generator_Throw(PyObject *self, PyObject *args, CYTHON_UNUSED PyObject *kwds)
+{
+ struct __pyx_Generator_object *generator = (struct __pyx_Generator_object *) self;
+ PyObject *typ;
+ PyObject *tb = NULL;
+ PyObject *val = NULL;
+
+ if (!PyArg_UnpackTuple(args, (char *)"throw", 1, 3, &typ, &val, &tb))
+ return NULL;
+ __Pyx_Raise(typ, val, tb, NULL);
+ return __Pyx_Generator_SendEx(generator, NULL);
+}
+""",
+proto_block='utility_code_proto_before_types',
+requires=[Nodes.raise_utility_code, Nodes.swap_exception_utility_code],
+)