mirror of
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124 lines
2.9 KiB
C++
124 lines
2.9 KiB
C++
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/*
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* Copyright (C) 2015 Naios <naios-dev@live.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string>
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#include <functional>
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#include <tuple>
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template <typename...>
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struct Continuable;
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template <typename... Args>
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Continuable<> make_continuable(Args&&...);
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template <typename...>
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struct Continuable
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{
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template <typename... Args>
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Continuable then(Args&&...)
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{
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return Continuable();
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}
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template <typename... Args>
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Continuable all(Args&&...)
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{
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return Continuable();
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}
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};
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template <typename... Args>
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Continuable<> make_continuable(Args&&...)
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{
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return Continuable<>();
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}
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template <typename... LeftArgs, typename... RightArgs>
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Continuable<> operator&& (Continuable<LeftArgs...>&&, Continuable<RightArgs...>&&)
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{
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return Continuable<>();
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}
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template <typename... LeftArgs, typename... RightArgs>
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Continuable<> operator|| (Continuable<LeftArgs...>&&, Continuable<RightArgs...>&&)
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{
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return Continuable<>();
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}
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Continuable<> http_request(std::string const& url)
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{
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return make_continuable([=](std::function<void(std::string)>&& callback)
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{
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// Do request...
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callback("some HTTP content");
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});
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}
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struct ResultSet { };
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Continuable<> mysql_query(std::string const& query)
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{
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return make_continuable([=](std::function<void(std::string)>&& callback)
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{
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// Do request...
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callback("a mysql query result");
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});
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}
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void test_mockup()
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{
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{
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Continuable<> continuable = make_continuable([]
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{
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return "hey";
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});
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}
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Continuable<> c1 = make_continuable([]
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{
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});
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Continuable<> c2 = make_continuable([]
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{
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});
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Continuable<> c3 = make_continuable([]
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{
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});
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Continuable<> c4 = make_continuable([]
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{
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});
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(std::move(c1) && std::move(c2))
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.then(http_request("https://github.com/") &&
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http_request("https://www.google.de/") &&
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mysql_query("SELECT name, session FROM users WHERE id = 3726284"))
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.then([](std::string github, std::string google, ResultSet user)
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{
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// result bla bla
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return std::forward_as_tuple(github.empty(), std::move(google), std::move(user));
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})
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.then([](bool hasContent, std::string google, ResultSet user)
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{
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});
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// Continuable<> c11 = || std::move(c3);
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}
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