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-rw-r--r--src/libexpr/attr-set.hh6
-rw-r--r--src/libexpr/primops.cc2
2 files changed, 5 insertions, 3 deletions
diff --git a/src/libexpr/attr-set.hh b/src/libexpr/attr-set.hh
index d6af99912..118c7bd5d 100644
--- a/src/libexpr/attr-set.hh
+++ b/src/libexpr/attr-set.hh
@@ -64,12 +64,12 @@ public:
return end();
}
- std::optional<Attr *> get(const Symbol & name)
+ Attr * get(const Symbol & name)
{
Attr key(name, 0);
iterator i = std::lower_bound(begin(), end(), key);
if (i != end() && i->name == name) return &*i;
- return {};
+ return nullptr;
}
Attr & need(const Symbol & name, const Pos & pos = noPos)
@@ -77,7 +77,7 @@ public:
auto a = get(name);
if (!a)
throw Error("attribute '%s' missing, at %s", name, pos);
- return **a;
+ return *a;
}
iterator begin() { return &attrs[0]; }
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index 3ef827ebc..29302c9b6 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -731,6 +731,8 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
the hash. */
for (auto & i : outputs) {
if (!jsonObject) drv.env[i] = "";
+ drv.outputs.insert_or_assign(i,
+ DerivationOutput(StorePath::dummy.clone(), "", ""));
}
Hash h = hashDerivationModulo(*state.store, Derivation(drv), true);