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Ensure that attrsets are sorted

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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
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@ -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);