@graffy/common/esm/ops/getKnown.js

Common libraries that used by various Graffy modules.

function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/*
  getKnown accepts a graph and returns a query for the knowledge
  in that graph.
*/
export default function getKnown(graph, version) {
  if (version === void 0) {
    version = 0;
  }

  var query = [];

  for (var _iterator = _createForOfIteratorHelperLoose(graph), _step; !(_step = _iterator()).done;) {
    var _step$value = _step.value,
        key = _step$value.key,
        end = _step$value.end,
        children = _step$value.children;
    var node = {
      key: key,
      version: version
    };

    if (end) {
      if (end !== key) node.end = end;
      node.options = {
        subtree: true
      };
    }

    if (children) {
      node.children = getKnown(children);
    } else {
      node.value = 1;
    }

    query.push(node);
  }

  return query;
}