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-rw-r--r--third_party/nix/src/libstore/parsed-derivations.hh37
1 files changed, 37 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..9bde4b4dcfc7
--- /dev/null
+++ b/third_party/nix/src/libstore/parsed-derivations.hh
@@ -0,0 +1,37 @@
+#include "derivations.hh"
+
+#include <nlohmann/json.hpp>
+
+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;
+};
+
+}