lix/src/fix-ng/eval.hh

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#ifndef __EVAL_H
#define __EVAL_H
#include <map>
#include "fix-expr.hh"
typedef map<Expr, Expr> NormalForms;
//typedef map<Path, PathSet> PkgPaths;
//typedef map<Path, Hash> PkgHashes;
struct EvalState
{
NormalForms normalForms;
// PkgPaths pkgPaths;
// PkgHashes pkgHashes; /* normalised package hashes */
Expr blackHole;
EvalState();
};
/* Evaluate an expression to normal form. */
Expr evalExpr(EvalState & state, Expr e);
/* Evaluate an expression read from the given file to normal form. */
Expr evalFile(EvalState & state, const Path & path);
#endif /* !__EVAL_H */