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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include "basemessage.h"
#include <utils/mimetypes/mimetype.h>
#include <utils/qtcassert.h>
#include <utils/variant.h>
#include <QByteArray>
#include <QDebug>
#include <QHash>
#include <QJsonValue>
#include <functional>
namespace LanguageServerProtocol {
class IContent;
class LANGUAGESERVERPROTOCOL_EXPORT MessageId : public Utils::variant<int, QString>
{
public:
MessageId() = default;
MessageId(int id) : variant(id) {}
MessageId(QString id) : variant(id) {}
explicit MessageId(const QJsonValue &value)
{
if (value.isUndefined())
return;
QTC_CHECK(value.isDouble() || value.isString());
if (value.isDouble())
*this = value.toInt();
else if (value.isString())
*this = value.toString();
}
QJsonValue toJson() const
{
QTC_CHECK(Utils::holds_alternative<int>(*this) || Utils::holds_alternative<QString>(*this));
if (auto id = Utils::get_if<int>(this))
return *id;
if (auto id = Utils::get_if<QString>(this))
return *id;
return QJsonValue();
}
bool isValid(QStringList *error = nullptr) const
{
if (Utils::holds_alternative<int>(*this) || Utils::holds_alternative<QString>(*this))
return true;
if (error)
error->append("Expected int or string as MessageId");
return false;
}
QString toString() const
{
if (auto id = Utils::get_if<QString>(this))
return *id;
if (auto id = Utils::get_if<int>(this))
return QString::number(*id);
return {};
}
};
using ResponseHandler = std::function<void(const QByteArray &, QTextCodec *)>;
using ResponseHandlers = std::function<void(MessageId, const QByteArray &, QTextCodec *)>;
using MethodHandler = std::function<void(const QString, MessageId, const IContent *)>;
inline uint qHash(const LanguageServerProtocol::MessageId &id)
{
if (Utils::holds_alternative<int>(id))
return QT_PREPEND_NAMESPACE(qHash(Utils::get<int>(id)));
if (Utils::holds_alternative<QString>(id))
return QT_PREPEND_NAMESPACE(qHash(Utils::get<QString>(id)));
return QT_PREPEND_NAMESPACE(qHash(0));
}
template <typename Error>
inline QDebug operator<<(QDebug stream, const LanguageServerProtocol::MessageId &id)
{
if (Utils::holds_alternative<int>(id))
stream << Utils::get<int>(id);
else
stream << Utils::get<QString>(id);
return stream;
}
class LANGUAGESERVERPROTOCOL_EXPORT IContent
{
public:
virtual ~IContent() = default;
virtual QByteArray toRawData() const = 0;
virtual QByteArray mimeType() const = 0;
virtual bool isValid(QString *errorMessage) const = 0;
virtual void registerResponseHandler(QHash<MessageId, ResponseHandler> *) const { }
BaseMessage toBaseMessage() const
{ return BaseMessage(mimeType(), toRawData()); }
};
} // namespace LanguageClient
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