#ifndef DEFSANALYSERVISITOR_HPP_
#define DEFSANALYSERVISITOR_HPP_

//============================================================================
// Name        :
// Author      : Avi
// Revision    : $Revision$ 
//
// Copyright 2009-2020 ECMWF.
// This software is licensed under the terms of the Apache Licence version 2.0 
// which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
// In applying this licence, ECMWF does not waive the privileges and immunities 
// granted to it by virtue of its status as an intergovernmental organisation 
// nor does it submit to any jurisdiction. 
//
// Description :
//============================================================================
#include <sstream>
#include <set>

#include "NodeTreeVisitor.hpp"
class Node;

namespace ecf {

class DefsAnalyserVisitor final : public NodeTreeVisitor {
public:
	DefsAnalyserVisitor();
	std::string report() const { return ss_.str();}

	bool traverseObjectStructureViaVisitors() const override { return true;}
	void visitDefs(Defs*) override;
	void visitSuite(Suite*) override;
	void visitFamily(Family*) override;
	void visitNodeContainer(NodeContainer*) override;
	void visitTask(Task*) override;

private:
	void analyse(Node* n,std::set<Node*>& dependentNodes, bool dependent =  false);
	void analyseExpressions(Node* node,std::set<Node*>& dependentNodes, bool trigger, bool dependent);

  	std::stringstream ss_;
  	std::set<Node*> analysedNodes_;  // The node we  analysed
};
}
#endif
