maurice/snix
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* Get rid of identifiers since they are redundant now. This greatly

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simplifies stuff.

* The format of Nix expressions and the database schema changed
  because of this, so it's best to delete old Nix installations.
This commit is contained in:
Eelco Dolstra 2003-10-08 15:06:59 +00:00
parent b9f4942bd2
commit 6baa2c4420
23 changed files with 485 additions and 631 deletions
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24
src/expr.hh
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@ -10,31 +10,27 @@ extern "C" {
/* Abstract syntax of Nix expressions. */
typedef list<FSId> FSIds;
struct ClosureElem
{
FSId id;
StringSet refs;
PathSet refs;
};
typedef map<string, ClosureElem> ClosureElems;
typedef map<Path, ClosureElem> ClosureElems;
struct Closure
{
StringSet roots;
PathSet roots;
ClosureElems elems;
};
typedef map<string, FSId> DerivationOutputs;
typedef map<string, string> StringPairs;
struct Derivation
{
DerivationOutputs outputs;
FSIdSet inputs;
PathSet outputs;
PathSet inputs; /* Nix expressions, not actual inputs */
string platform;
string builder;
Path builder;
Strings args;
StringPairs env;
};
@ -57,11 +53,11 @@ Error badTerm(const format & f, ATerm t);
/* Hash an aterm. */
Hash hashTerm(ATerm t);
/* Read an aterm from disk, given its id. */
ATerm termFromId(const FSId & id);
/* Read an aterm from disk. */
ATerm termFromPath(const Path & path);
/* Write an aterm to the Nix store directory, and return its hash. */
FSId writeTerm(ATerm t, const string & suffix, FSId id = FSId());
/* Write an aterm to the Nix store directory, and return its path. */
Path writeTerm(ATerm t, const string & suffix);
/* Parse a Nix expression. */
NixExpr parseNixExpr(ATerm t);