tjh.dev
nixpkgs mirror (for testing)
github.com/NixOS/nixpkgs
nix
1{
2 lib,
3 buildDunePackage,
4 fetchFromGitLab,
5 ppxlib,
6 ppx_deriving,
7 result,
8 version ? if lib.versionAtLeast ppxlib.version "0.36" then "20251010" else "20250212",
9}:
10
11buildDunePackage {
12 pname = "visitors";
13 inherit version;
14
15 minimalOCamlVersion = "4.08";
16
17 src = fetchFromGitLab {
18 owner = "fpottier";
19 repo = "visitors";
20 tag = version;
21 domain = "gitlab.inria.fr";
22 hash =
23 {
24 "20250212" = "sha256-AFD4+vriwVGt6lzDyIDuIMadakcgB4j235yty5qqFgQ=";
25 "20251010" = "sha256-3CHXECMHf/UWtLvy7fiOaxx6EizRRtm9HpqRxcRjH3I=";
26 }
27 ."${version}";
28 };
29
30 propagatedBuildInputs = [
31 ppxlib
32 ppx_deriving
33 result
34 ];
35
36 meta = {
37 homepage = "https://gitlab.inria.fr/fpottier/visitors";
38 changelog = "https://gitlab.inria.fr/fpottier/visitors/-/raw/${version}/CHANGES.md";
39 license = lib.licenses.lgpl21;
40 description = "OCaml syntax extension (technically, a ppx_deriving plugin) which generates object-oriented visitors for traversing and transforming data structures";
41 maintainers = [ ];
42 };
43}