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authorDominick Allen <djallen@librehumanitas.org>2024-09-22 12:41:28 -0500
committerDominick Allen <djallen@librehumanitas.org>2024-09-22 12:41:28 -0500
commit7da829d48f9059c83ab9cada2c850621e8bbd3f3 (patch)
tree314e7a5b645e910d4997e3bee980bd2024f3087d /include/result.hpp
parentbf81e34921e3e30b05313efbcf5c9fa839cb7c05 (diff)
Basics of library.
Diffstat (limited to 'include/result.hpp')
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-/*
- * LibFud
- * Copyright 2024 Dominick Allen
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef BOOKMOUSE_RESULT_HPP
-#define BOOKMOUSE_RESULT_HPP
-
-#include <utility>
-#include <variant>
-
-namespace fud {
-
-template<typename T, typename E>
-class Result {
-public:
- using ResultType = Result<T, E>;
- static ResultType okay(const T& okay)
- {
- return ResultType{okay};
- }
-
- static ResultType okay(T&& okay)
- {
- return ResultType{std::move(okay)};
- }
-
- static ResultType error(const E& error)
- {
- return ResultType{error};
- }
-
- static ResultType error(E&& error)
- {
- return ResultType{std::move(error)};
- }
-
- [[nodiscard]] constexpr bool isOkay() const
- {
- return(m_value.index() == 0);
- }
-
- [[nodiscard]] constexpr bool isError() const
- {
- return(m_value.index() == 1);
- }
-
- T getOkay()
- {
- return std::get<T>(m_value);
- }
-
- E getError()
- {
- return std::get<E>(m_value);
- }
-
-private:
- explicit Result() : m_value() {}
- explicit Result(const T& value) : m_value(value) {}
- explicit Result(const E& value) : m_value(value) {}
-
- explicit Result(T&& value) : m_value(std::move(value)) {}
- explicit Result(E&& value) : m_value(std::move(value)) {}
-
- std::variant<T, E> m_value;
-};
-
-} // namespace bookmouse
-
-#endif