{ stdenv
, lib
, buildPythonPackage
, fetchPypi
, wasmer
, wasmer-compiler-cranelift
, py
, pytestCheckHook
, pytest-benchmark
}:

buildPythonPackage rec {
  pname = "fastdiff";
  version = "0.3.0";

  src = fetchPypi {
    inherit pname version;
    sha256 = "4dfa09c47832a8c040acda3f1f55fc0ab4d666f0e14e6951e6da78d59acd945a";
  };

  postPatch = ''
    substituteInPlace setup.py \
      --replace 'pytest-runner' ""
    substituteInPlace setup.cfg \
      --replace "collect_ignore = ['setup.py']" ""
  '';

  propagatedBuildInputs = [
    wasmer
    wasmer-compiler-cranelift
  ];

  checkInputs = [
    py
    pytestCheckHook
    pytest-benchmark
  ];

  pytestFlagsArray = [
    "--benchmark-skip"
  ];

  pythonImportsCheck = [
    "fastdiff"
  ];

  meta = with lib; {
    description = "A fast native implementation of diff algorithm with a pure Python fallback";
    homepage = "https://github.com/syrusakbary/fastdiff";
    license = licenses.mit;
    maintainers = with maintainers; [ SuperSandro2000 ];
    # resulting compiled object panics at import
    broken = stdenv.is32bit;
  };
}