98 lines
2.4 KiB
C++
98 lines
2.4 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop version of Telegram messaging app, see https://telegram.org
|
|
|
|
Telegram Desktop is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
It is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
In addition, as a special exception, the copyright holders give permission
|
|
to link the code of portions of this program with the OpenSSL library.
|
|
|
|
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
|
|
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
|
|
*/
|
|
#pragma once
|
|
|
|
#include <rpl/producer.h>
|
|
|
|
namespace rpl {
|
|
|
|
template <typename Value>
|
|
inline auto single(Value &&value) {
|
|
return make_producer<std::decay_t<Value>>([
|
|
value = std::forward<Value>(value)
|
|
](const auto &consumer) mutable {
|
|
consumer.put_next(std::move(value));
|
|
consumer.put_done();
|
|
return lifetime();
|
|
});
|
|
}
|
|
|
|
inline auto single() {
|
|
return make_producer<>([](const auto &consumer) {
|
|
consumer.put_next({});
|
|
consumer.put_done();
|
|
return lifetime();
|
|
});
|
|
}
|
|
|
|
template <typename Value>
|
|
inline auto vector(std::vector<Value> &&values) {
|
|
return make_producer<Value>([
|
|
values = std::move(values)
|
|
](const auto &consumer) mutable {
|
|
for (auto &value : values) {
|
|
consumer.put_next(std::move(value));
|
|
}
|
|
consumer.put_done();
|
|
return lifetime();
|
|
});
|
|
}
|
|
|
|
inline auto vector(std::vector<bool> &&values) {
|
|
return make_producer<bool>([
|
|
values = std::move(values)
|
|
](const auto &consumer) {
|
|
for (auto value : values) {
|
|
consumer.put_next_copy(value);
|
|
}
|
|
consumer.put_done();
|
|
return lifetime();
|
|
});
|
|
}
|
|
|
|
template <
|
|
typename Range,
|
|
typename Value = std::decay_t<
|
|
decltype(*std::begin(std::declval<Range>()))>>
|
|
inline auto range(Range &&range) {
|
|
return vector(std::vector<Value>(
|
|
std::begin(range),
|
|
std::end(range)));
|
|
}
|
|
|
|
inline auto ints(int from, int till) {
|
|
Expects(from <= till);
|
|
return make_producer<int>([from, till](const auto &consumer) {
|
|
for (auto i = from; i != till; ++i) {
|
|
consumer.put_next_copy(i);
|
|
}
|
|
consumer.put_done();
|
|
return lifetime();
|
|
});
|
|
}
|
|
|
|
inline auto ints(int count) {
|
|
return ints(0, count);
|
|
}
|
|
|
|
} // namespace rpl
|
|
|