/****************************************************************************
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** Copyright (C) 2015 The Qt Company Ltd.
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**
** This file is part of Qbs.
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** accordance with the commercial license agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
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****************************************************************************/

#ifndef QBS_RULENODE_H
#define QBS_RULENODE_H

#include "artifactset.h"
#include "buildgraphnode.h"
#include "forward_decls.h"
#include <language/forward_decls.h>

namespace qbs {
namespace Internal {

class Logger;

class RuleNode : public BuildGraphNode
{
public:
    RuleNode();
    ~RuleNode();

    void setRule(const RuleConstPtr &rule) { m_rule = rule; }
    const RuleConstPtr &rule() const { return m_rule; }

    Type type() const { return RuleNodeType; }
    void accept(BuildGraphVisitor *visitor);
    QString toString() const;

    struct ApplicationResult
    {
        bool upToDate;
        NodeSet createdNodes;
        NodeSet invalidatedNodes;
    };

    void apply(const Logger &logger, const ArtifactSet &changedInputs, ApplicationResult *result);
    void removeOldInputArtifact(Artifact *artifact) { m_oldInputArtifacts.remove(artifact); }

protected:
    void load(PersistentPool &pool);
    void store(PersistentPool &pool) const;

private:
    ArtifactSet currentInputArtifacts() const;

    RuleConstPtr m_rule;
    ArtifactSet m_oldInputArtifacts;
};

} // namespace Internal
} // namespace qbs

#endif // QBS_RULENODE_H
