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{ lib, stdenv, fetchFromGitHub, which, ocamlPackages }:
stdenv.mkDerivation rec {
pname = "eff";
version = "5.0";
src = fetchFromGitHub {
owner = "matijapretnar";
repo = "eff";
rev = "v${version}";
sha256 = "1fslfj5d7fhj3f7kh558b8mk5wllwyq4rnhfkyd96fpy144sdcka";
};
postPatch = ''
substituteInPlace setup.ml --replace js_of_ocaml.ocamlbuild js_of_ocaml-ocamlbuild
'';
buildInputs = [ which ] ++ (with ocamlPackages; [
ocaml findlib ocamlbuild menhir js_of_ocaml js_of_ocaml-ocamlbuild
]);
doCheck = true;
checkTarget = "test";
meta = with lib; {
homepage = "https://www.eff-lang.org";
description = "A functional programming language based on algebraic effects and their handlers";
longDescription = ''
Eff is a functional language with handlers of not only exceptions,
but also of other computational effects such as state or I/O. With
handlers, you can simply implement transactions, redirections,
backtracking, multi-threading, and much more...
'';
license = licenses.bsd2;
inherit (ocamlPackages.ocaml.meta) platforms;
maintainers = [ maintainers.jirkamarsik ];
};
}
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