1 files changed, 34 insertions, 0 deletions
diff --git a/third_party/nix/src/libstore/parsed-derivations.hh b/third_party/nix/src/libstore/parsed-derivations.hh
new file mode 100644
index 000000000000..7cd3d36f67bf
--- /dev/null
+++ b/third_party/nix/src/libstore/parsed-derivations.hh
@@ -0,0 +1,34 @@
+#include <nlohmann/json.hpp>
+
+#include "libstore/derivations.hh"
+
+namespace nix {
+
+class ParsedDerivation {
+  Path drvPath;
+  BasicDerivation& drv;
+  std::optional<nlohmann::json> structuredAttrs;
+
+ public:
+  ParsedDerivation(const Path& drvPath, BasicDerivation& drv);
+
+  const std::optional<nlohmann::json>& getStructuredAttrs() const {
+    return structuredAttrs;
+  }
+
+  std::optional<std::string> getStringAttr(const std::string& name) const;
+
+  bool getBoolAttr(const std::string& name, bool def = false) const;
+
+  std::optional<Strings> getStringsAttr(const std::string& name) const;
+
+  StringSet getRequiredSystemFeatures() const;
+
+  bool canBuildLocally() const;
+
+  bool willBuildLocally() const;
+
+  bool substitutesAllowed() const;
+};
+
+}  // namespace nix