DSX<T> constructor

DSX<T>(Object objSource, T obj, { List? parameters, })

Creates a DSX object that makes a reference to object with parameters.

Implementation

factory DSX(Object objSource, T obj, {List? parameters}) {
  if (_isPrimitive(objSource) || _isPrimitive(obj)) {
    var dsx = DSX<T>._(parameters);

    _dsxToObjectSource[dsx] = objSource;
    _dsxToObject[dsx] = obj;
    _keyToDSK[dsx._key] ??= dsx;

    print('primitive> $dsx > $objSource ; $obj');

    return dsx;
  }

  var prevDSX = _objectsToDSX[objSource];
  prevDSX ??= _objectsToDSX[obj as Object];

  if (prevDSX != null) {
    for (var e in prevDSX) {
      if (e.equalsParameters(parameters)) {
        var dsx = e as DSX<T>;
        if (identical(dsx.objectSource, objSource)) {
          return dsx;
        }
      }
    }

    var dsx = DSX<T>._(parameters);
    prevDSX.add(dsx);

    _objectsToDSX[objSource] = prevDSX;
    _objectsToDSX[obj as Object] = prevDSX;
    _dsxToObjectSource[dsx] = objSource;
    _dsxToObject[dsx] = obj;
    _keyToDSK[dsx._key] ??= dsx;

    return dsx;
  } else {
    var dsx = DSX<T>._(parameters);

    _objectsToDSX[objSource] = [dsx];
    _objectsToDSX[obj as Object] = [dsx];
    _dsxToObjectSource[dsx] = objSource;
    _dsxToObject[dsx] = obj;
    _keyToDSK[dsx._key] ??= dsx;

    return dsx;
  }
}