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/*
Ousía
Copyright (C) 2014, 2015 Benjamin Paaßen, Andreas Stöckel
This program 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.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file ParserScopeCallbacks.hpp
*
* Contains the definition of some callback function types used in the context
* of the resolution process for nodes in the document graph.
*
* @author Andreas Stöckel (astoecke@techfak.uni-bielefeld.de)
*/
#ifndef _OUSIA_RESOLUTION_CALLBACKS_HPP_
#define _OUSIA_RESOLUTION_CALLBACKS_HPP_
#include <functional>
#include <core/model/Node.hpp>
namespace ousia {
// Forward declarations
class Logger;
/**
* Callback function type used for creating a dummy object while no correct
* object is available for resolution.
*/
using ResolutionImposterCallback = std::function<Rooted<Node>()>;
/**
* Callback function type called whenever the result of a resolution is
* available.
*
* @param resolved is the new, resolved node.
* @param owner is the node that was passed as "owner".
* @param logger is the logger to which errors should be logged.
*/
using ResolutionResultCallback = std::function<
void(Handle<Node> resolved, Handle<Node> owner, Logger &logger)>;
/**
* The ResolveCallback can be used to trigger the resolution of a certain node.
*
* @param type is the type of node that should be resolved.
* @param path is the path for which a node should be resolved.
* @return a the resolved node or nullptr if the resolution was not successful.
*/
using ResolveCallback = std::function<
Rooted<Node>(const Rtti *type, const std::vector<std::string> &path)>;
/**
* Empty implementation of the ResolveCallback, always returns nullptr.
*/
Rooted<Node> NullResolveCallback(const Rtti *,
const std::vector<std::string> &);
}
#endif /* _OUSIA_RESOLUTION_CALLBACKS_HPP_ */
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