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* Keep attribute sets in sorted order to speed up attribute lookups.

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* Simplify the representation of attributes in the AST.
* Change the behaviour of listToAttrs() in case of duplicate names.
This commit is contained in:
Eelco Dolstra 2010-10-24 19:52:33 +00:00
parent 2dc6d50941
commit e0b7fb8f27
12 changed files with 186 additions and 148 deletions
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15
src/nix-env/user-env.cc
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@ -69,13 +69,14 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
mkString(*state.allocAttr(v, state.sOutPath), i->queryOutPath(state));
if (drvPath != "")
mkString(*state.allocAttr(v, state.sDrvPath), i->queryDrvPath(state));
state.mkAttrs(*state.allocAttr(v, state.sMeta));
Value & vMeta = *state.allocAttr(v, state.sMeta);
state.mkAttrs(vMeta);
MetaInfo meta = i->queryMetaInfo(state);
foreach (MetaInfo::const_iterator, j, meta) {
Value & v2(*state.allocAttr(*(*v.attrs)[state.sMeta].value, state.symbols.create(j->first)));
Value & v2(*state.allocAttr(vMeta, state.symbols.create(j->first)));
switch (j->second.type) {
case MetaValue::tpInt: mkInt(v2, j->second.intValue); break;
case MetaValue::tpString: mkString(v2, j->second.stringValue); break;
@ -92,6 +93,9 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
}
}
vMeta.attrs->sort();
v.attrs->sort();
/* This is only necessary when installing store paths, e.g.,
`nix-env -i /nix/store/abcd...-foo'. */
store->addTempRoot(i->queryOutPath(state));
@ -118,7 +122,8 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
mkString(*state.allocAttr(args, state.sSystem), thisSystem);
mkString(*state.allocAttr(args, state.symbols.create("manifest")),
manifestFile, singleton<PathSet>(manifestFile));
(*args.attrs)[state.symbols.create("derivations")].value = &manifest;
args.attrs->push_back(Attr(state.symbols.create("derivations"), &manifest));
args.attrs->sort();
mkApp(topLevel, envBuilder, args);
/* Evaluate it. */