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* A command to register successor fstate expressions.

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Unifying substitutes and successors isn't very feasible for now,
  since substitutes are only used when no path with a certain is
  known.  Therefore, a normal form of some expression stored as a
  substitute would not be used unless the expression itself was
  missing.
This commit is contained in:
Eelco Dolstra 2003-07-10 18:48:11 +00:00
parent 8511571f65
commit e5fbf58041
3 changed files with 28 additions and 1 deletions
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8
src/fstate.cc
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@ -179,6 +179,12 @@ Hash writeTerm(ATerm t, const string & suffix, string * p)
}
void registerSuccessor(const Hash & fsHash, const Hash & scHash)
{
setDB(nixDB, dbSuccessors, fsHash, scHash);
}
FState storeSuccessor(FState fs, FState sc, StringSet & paths)
{
if (fs == sc) return sc;
@ -186,7 +192,7 @@ FState storeSuccessor(FState fs, FState sc, StringSet & paths)
string path;
Hash fsHash = hashTerm(fs);
Hash scHash = writeTerm(sc, "-s-" + (string) fsHash, &path);
setDB(nixDB, dbSuccessors, fsHash, scHash);
registerSuccessor(fsHash, scHash);
paths.insert(path);
#if 0