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#ifndef __ATERM_H
#define __ATERM_H
extern "C" {
#include <aterm2.h>
}
#include "types.hh"
namespace nix {
/* Print an ATerm. */
string atPrint(ATerm t);
class ATermIterator
{
ATermList t;
public:
ATermIterator(ATermList _t) : t(_t) { }
ATermIterator & operator ++ ()
{
t = ATgetNext(t);
return *this;
}
ATerm operator * ()
{
return ATgetFirst(t);
}
operator bool ()
{
return t != ATempty;
}
};
/* Throw an exception with an error message containing the given
aterm. */
Error badTerm(const format & f, ATerm t);
/* Convert strings to ATerms. */
ATerm toATerm(const char * s);
ATerm toATerm(const string & s);
}
/* Write an ATerm to an output stream. */
std::ostream & operator << (std::ostream & stream, ATerm e);
#endif /* !__ATERM_H */
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