Add a toJSON primop

1 files changed, 14 insertions, 0 deletions

diff --git a/src/libexpr/value-to-json.hh b/src/libexpr/value-to-json.hh
new file mode 100644
index 000000000000..5f36a76d8a7e
--- /dev/null
+++ b/src/libexpr/value-to-json.hh
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "nixexpr.hh"
+#include "eval.hh"
+
+#include <string>
+#include <map>
+
+namespace nix {
+
+void printValueAsJSON(EvalState & state, bool strict,
+    Value & v, std::ostream & out, PathSet & context);
+
+}