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Ensure that attrsets are sorted

Browse source 
Previously you had to remember to call value->attrs->sort() after
populating value->attrs. Now there is a BindingsBuilder helper that
wraps Bindings and ensures that sort() is called before you can use
it.
This commit is contained in:
Eelco Dolstra 2022-01-04 17:39:16 +01:00
parent 1ffacad8a5
commit 6d9a6d2cc3
17 changed files with 260 additions and 198 deletions
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21
src/libexpr/primops/context.cc
View file

@ -103,27 +103,26 @@ static void prim_getContext(EvalState & state, const Pos & pos, Value * * args,
}
}
state.mkAttrs(v, contextInfos.size());
auto attrs = state.buildBindings(contextInfos.size());
auto sPath = state.symbols.create("path");
auto sAllOutputs = state.symbols.create("allOutputs");
for (const auto & info : contextInfos) {
auto & infoVal = *state.allocAttr(v, state.symbols.create(info.first));
state.mkAttrs(infoVal, 3);
auto infoAttrs = state.buildBindings(3);
if (info.second.path)
mkBool(*state.allocAttr(infoVal, sPath), true);
mkBool(infoAttrs.alloc(sPath), true);
if (info.second.allOutputs)
mkBool(*state.allocAttr(infoVal, sAllOutputs), true);
mkBool(infoAttrs.alloc(sAllOutputs), true);
if (!info.second.outputs.empty()) {
auto & outputsVal = *state.allocAttr(infoVal, state.sOutputs);
auto & outputsVal = infoAttrs.alloc(state.sOutputs);
state.mkList(outputsVal, info.second.outputs.size());
size_t i = 0;
for (const auto & output : info.second.outputs)
mkString(*(outputsVal.listElems()[i++] = state.allocValue()), output);
for (const auto & [i, output] : enumerate(info.second.outputs))
(outputsVal.listElems()[i] = state.allocValue())->mkString(output);
}
infoVal.attrs->sort();
attrs.alloc(info.first).mkAttrs(infoAttrs);
}
v.attrs->sort();
v.mkAttrs(attrs);
}
static RegisterPrimOp primop_getContext("__getContext", 1, prim_getContext);

14
src/libexpr/primops/fetchMercurial.cc
View file

@ -70,19 +70,19 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
// FIXME: use name
auto [tree, input2] = input.fetch(state.store);
state.mkAttrs(v, 8);
auto attrs2 = state.buildBindings(8);
auto storePath = state.store->printStorePath(tree.storePath);
mkString(*state.allocAttr(v, state.sOutPath), storePath, PathSet({storePath}));
attrs2.alloc(state.sOutPath).mkString(storePath, {storePath});
if (input2.getRef())
mkString(*state.allocAttr(v, state.symbols.create("branch")), *input2.getRef());
attrs2.alloc("branch").mkString(*input2.getRef());
// Backward compatibility: set 'rev' to
// 0000000000000000000000000000000000000000 for a dirty tree.
auto rev2 = input2.getRev().value_or(Hash(htSHA1));
mkString(*state.allocAttr(v, state.symbols.create("rev")), rev2.gitRev());
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), std::string(rev2.gitRev(), 0, 12));
attrs2.alloc("rev").mkString(rev2.gitRev());
attrs2.alloc("shortRev").mkString(rev2.gitRev().substr(0, 12));
if (auto revCount = input2.getRevCount())
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), *revCount);
v.attrs->sort();
attrs2.alloc("revCount").mkInt(*revCount);
v.mkAttrs(attrs2);
state.allowPath(tree.storePath);
}

27
src/libexpr/primops/fetchTree.cc
View file

@ -21,49 +21,48 @@ void emitTreeAttrs(
{
assert(input.isImmutable());
state.mkAttrs(v, 8);
auto attrs = state.buildBindings(8);
auto storePath = state.store->printStorePath(tree.storePath);
mkString(*state.allocAttr(v, state.sOutPath), storePath, PathSet({storePath}));
attrs.alloc(state.sOutPath).mkString(storePath, {storePath});
// FIXME: support arbitrary input attributes.
auto narHash = input.getNarHash();
assert(narHash);
mkString(*state.allocAttr(v, state.symbols.create("narHash")),
narHash->to_string(SRI, true));
attrs.alloc("narHash").mkString(narHash->to_string(SRI, true));
if (input.getType() == "git")
mkBool(*state.allocAttr(v, state.symbols.create("submodules")),
attrs.alloc("submodules").mkBool(
fetchers::maybeGetBoolAttr(input.attrs, "submodules").value_or(false));
if (!forceDirty) {
if (auto rev = input.getRev()) {
mkString(*state.allocAttr(v, state.symbols.create("rev")), rev->gitRev());
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), rev->gitShortRev());
attrs.alloc("rev").mkString(rev->gitRev());
attrs.alloc("shortRev").mkString(rev->gitShortRev());
} else if (emptyRevFallback) {
// Backwards compat for `builtins.fetchGit`: dirty repos return an empty sha1 as rev
auto emptyHash = Hash(htSHA1);
mkString(*state.allocAttr(v, state.symbols.create("rev")), emptyHash.gitRev());
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), emptyHash.gitShortRev());
attrs.alloc("rev").mkString(emptyHash.gitRev());
attrs.alloc("shortRev").mkString(emptyHash.gitShortRev());
}
if (auto revCount = input.getRevCount())
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), *revCount);
attrs.alloc("revCount").mkInt(*revCount);
else if (emptyRevFallback)
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), 0);
attrs.alloc("revCount").mkInt(0);
}
if (auto lastModified = input.getLastModified()) {
mkInt(*state.allocAttr(v, state.symbols.create("lastModified")), *lastModified);
mkString(*state.allocAttr(v, state.symbols.create("lastModifiedDate")),
attrs.alloc("lastModified").mkInt(*lastModified);
attrs.alloc("lastModifiedDate").mkString(
fmt("%s", std::put_time(std::gmtime(&*lastModified), "%Y%m%d%H%M%S")));
}
v.attrs->sort();
v.mkAttrs(attrs);
}
std::string fixURI(std::string uri, EvalState & state, const std::string & defaultScheme = "file")

11
src/libexpr/primops/fromTOML.cc
View file

@ -24,15 +24,12 @@ static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Va
size_t size = 0;
for (auto & i : table) { (void) i; size++; }
state.mkAttrs(v, size);
auto attrs = state.buildBindings(size);
for(auto & elem: table) {
for(auto & elem : table)
visit(attrs.alloc(elem.first), elem.second);
auto & v2 = *state.allocAttr(v, state.symbols.create(elem.first));
visit(v2, elem.second);
}
v.attrs->sort();
v.mkAttrs(attrs);
}
break;;
case toml::value_t::array: