held/lib/util/createDetectors.js

Detect paths within an object which held external references.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

exports.default = createDetectors;

var _fragile = require('fragile');

var _fragile2 = _interopRequireDefault(_fragile);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Receives a reference map and returns a list of leak detectors
 * Which can be used to test each of these references for leaks.
 *
 * In order not to be considered a leak no other variables must
 * point to the value tested by the detector.
 *
 * Some metadata is attached, the paths which pointed to this value.
 * And the type of the object.
 *
 * @param refMap
 * @returns {Array}
 */
function createDetectors(refMap) {
  var detectors = [];

  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;

  try {
    for (var _iterator = refMap[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var _ref = _step.value;

      var _ref2 = _slicedToArray(_ref, 2);

      var value = _ref2[0];
      var paths = _ref2[1];

      detectors.push({
        type: value.toString ? value.toString() : typeof value === 'undefined' ? 'undefined' : _typeof(value),
        paths: paths,
        isLeaking: (0, _fragile2.default)(value)
      });
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator.return) {
        _iterator.return();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }

  return detectors;
}
module.exports = exports['default'];