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/*
* Copyright (c) 2021, Linus Groh <mail@linusgroh.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/NonnullRefPtr.h>
#include <AK/Optional.h>
#include <AK/RefPtr.h>
#include <LibWeb/DOM/DOMException.h>
namespace Web::DOM {
template<typename ValueType>
class ExceptionOr {
public:
ExceptionOr(const ValueType& result)
: m_result(result)
{
}
ExceptionOr(ValueType&& result)
: m_result(move(result))
{
}
ExceptionOr(const NonnullRefPtr<DOMException> exception)
: m_exception(exception)
{
}
ExceptionOr(ExceptionOr&& other) = default;
ExceptionOr(const ExceptionOr& other) = default;
~ExceptionOr() = default;
ValueType& value()
{
return m_result.value();
}
ValueType release_value()
{
return m_result.release_value();
}
const DOMException& exception() const
{
return *m_exception;
}
bool is_exception() const
{
return m_exception;
}
private:
Optional<ValueType> m_result;
RefPtr<DOMException> m_exception;
};
template<>
class ExceptionOr<void> {
public:
ExceptionOr(const NonnullRefPtr<DOMException> exception)
: m_exception(exception)
{
}
ExceptionOr() = default;
ExceptionOr(ExceptionOr&& other) = default;
ExceptionOr(const ExceptionOr& other) = default;
~ExceptionOr() = default;
const DOMException& exception() const
{
return *m_exception;
}
bool is_exception() const
{
return m_exception;
}
private:
RefPtr<DOMException> m_exception;
};
}
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