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#ifndef CACHE_H
#define CACHE_H

#include <bu/singleton.h>
#include <bu/string.h>
#include <bu/hash.h>
#include <bu/list.h>

#include "variable.h"
#include "types.h"

class Cache : public Bu::Singleton<Cache>
{
friend class Bu::Singleton<Cache>;
private:
	Cache();
	virtual ~Cache();

public:
	void bind( const Bu::String &sCacheFile );

	void load();
	void save();

	StrList getRequires( const Bu::String &sOutput );
	void setRequires( const Bu::String &sOutput, StrList lReqs );

private:
	bool bCacheChanged;
	Bu::String sCacheFile;
	bool bIsLoaded;
	typedef Bu::Hash<Bu::String, StrList> ReqHash;
	ReqHash hRequires;
	typedef Bu::Hash<Bu::String, Variable> VarHash;
	VarHash hVariables;
};

#endif