pybind11/tests/test_async.cpp

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/*
tests/test_async.cpp -- __await__ support
Copyright (c) 2019 Google Inc.
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/
#include "pybind11_tests.h"
TEST_SUBMODULE(async_module, m) {
struct DoesNotSupportAsync {};
py::class_<DoesNotSupportAsync>(m, "DoesNotSupportAsync").def(py::init<>());
struct SupportsAsync {};
py::class_<SupportsAsync>(m, "SupportsAsync")
.def(py::init<>())
.def("__await__", [](const SupportsAsync &self) -> py::object {
static_cast<void>(self);
py::object loop = py::module_::import("asyncio.events").attr("get_event_loop")();
py::object f = loop.attr("create_future")();
f.attr("set_result")(5);
return f.attr("__await__")();
});
}