push sheeet

pkgs/development/ocaml-modules/repr/ppx.nix

@@ -0,0 +1,37 @@
+{
+  lib,
+  buildDunePackage,
+  fetchpatch,
+  ppx_deriving,
+  ppxlib,
+  repr,
+  alcotest,
+  hex,
+}:
+
+buildDunePackage {
+  pname = "ppx_repr";
+
+  inherit (repr) src version;
+
+  patches = lib.optional (lib.versionAtLeast ppxlib.version "0.36") (fetchpatch {
+    url = "https://github.com/mirage/repr/commit/9dcaeaa7e5f45998f76e1eab68f8fd18edc980cc.patch";
+    hash = "sha256-MKuZ4f8m/nNlgZpomGgqr80s5btynKcb1b4khpIIOY4=";
+  });
+
+  propagatedBuildInputs = [
+    ppx_deriving
+    ppxlib
+    repr
+  ];
+
+  doCheck = true;
+  checkInputs = [
+    alcotest
+    hex
+  ];
+
+  meta = repr.meta // {
+    description = "PPX deriver for type representations";
+  };
+}