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