1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/nix/src/libexpr/primops.hh b/third_party/nix/src/libexpr/primops.hh
new file mode 100644
index 0000000000..c790b30f6d
--- /dev/null
+++ b/third_party/nix/src/libexpr/primops.hh
@@ -0,0 +1,26 @@
+#include "eval.hh"
+
+#include <tuple>
+#include <vector>
+
+namespace nix {
+
+struct RegisterPrimOp
+{
+    typedef std::vector<std::tuple<std::string, size_t, PrimOpFun>> PrimOps;
+    static PrimOps * primOps;
+    /* You can register a constant by passing an arity of 0. fun
+       will get called during EvalState initialization, so there
+       may be primops not yet added and builtins is not yet sorted. */
+    RegisterPrimOp(std::string name, size_t arity, PrimOpFun fun);
+};
+
+/* These primops are disabled without enableNativeCode, but plugins
+   may wish to use them in limited contexts without globally enabling
+   them. */
+/* Load a ValueInitializer from a DSO and return whatever it initializes */
+void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value & v);
+/* Execute a program and parse its output */
+void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v);
+
+}