Flow Coverage Report - src/utils/fromJS.js

Go back to all files summary.

Filename	Percent	Total	Covered	Uncovered
src/utils/fromJS.js	29 %	101	30	71

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

// @flow

/**
 * Immutable JS conversion utils
 * @deprecated
 * @module utils/fromJS
 */

import * as I from "immutable";
import { isFunction } from "lodash";

// hasOwnProperty is defensive because it is possible that the
// object that we're creating a map for has a `hasOwnProperty` field
function hasOwnProperty(value, key) {
  if (value.hasOwnProperty && isFunction(value.hasOwnProperty)) {
    return value.hasOwnProperty(key);
  }

  if (value.prototype && value.prototype.hasOwnProperty) {
    return value.prototype.hasOwnProperty(key);
  }

  return false;
}

/*
  creates an immutable map, where each of the value's
  items are transformed into their own map.

  NOTE: we guard against `length` being a property because
  length confuses Immutable's internal algorithm.
*/
function createMap(value) {
  const hasLength = hasOwnProperty(value, "length");
  const length = value.length;

  if (hasLength) {
    value.length = `${value.length}`;
  }

  let map = I.Seq(value)
    .map(fromJS)
    .toMap();

  if (hasLength) {
    map = map.set("length", length);
    value.length = length;
  }

  return map;
}

function createList(value) {
  return I.Seq(value)
    .map(fromJS)
    .toList();
}

/**
 * When our app state is fully typed, we should be able to get rid of
 * this function. This is only temporarily necessary to support
 * converting typed objects to immutable.js, which usually happens in
 * reducers.
 *
 * @memberof utils/fromJS
 * @static
 */
function fromJS(value: any): any {
  if (Array.isArray(value)) {
    return createList(value);
  }
  if (value && value.constructor && value.constructor.meta) {
    // This adds support for tcomb objects which are native JS objects
    // but are not "plain", so the above checks fail. Since they
    // behave the same we can use the same constructors, but we need
    // special checks for them.
    const kind = value.constructor.meta.kind;
    if (kind === "struct") {
      return createMap(value);
    } else if (kind === "list") {
      return createList(value);
    }
  }

  // If it's a primitive type, just return the value. Note `==` check
  // for null, which is intentionally used to match either `null` or
  // `undefined`.
  if (value == null || typeof value !== "object") {
    return value;
  }

  // Otherwise, treat it like an object. We can't reliably detect if
  // it's a plain object because we might be objects from other JS
  // contexts so `Object !== Object`.

  return createMap(value);
}

module.exports = fromJS;

{"expressions":{"covered_count":30,"uncovered_count":71,"uncovered_locs":[{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":18,"column":25,"offset":525},"end":{"line":18,"column":29,"offset":530}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":19,"column":7,"offset":545},"end":{"line":19,"column":11,"offset":550}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":19,"column":7,"offset":545},"end":{"line":19,"column":26,"offset":565}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":19,"column":31,"offset":569},"end":{"line":19,"column":40,"offset":579}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":19,"column":31,"offset":569},"end":{"line":19,"column":62,"offset":601}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":19,"column":42,"offset":580},"end":{"line":19,"column":46,"offset":585}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":19,"column":42,"offset":580},"end":{"line":19,"column":61,"offset":600}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":20,"column":12,"offset":616},"end":{"line":20,"column":16,"offset":621}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":20,"column":12,"offset":616},"end":{"line":20,"column":36,"offset":641}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":23,"column":7,"offset":654},"end":{"line":23,"column":11,"offset":659}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":23,"column":7,"offset":654},"end":{"line":23,"column":21,"offset":669}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":23,"column":26,"offset":673},"end":{"line":23,"column":30,"offset":678}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":23,"column":26,"offset":673},"end":{"line":23,"column":40,"offset":688}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":23,"column":26,"offset":673},"end":{"line":23,"column":55,"offset":703}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":24,"column":12,"offset":718},"end":{"line":24,"column":16,"offset":723}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":24,"column":12,"offset":718},"end":{"line":24,"column":26,"offset":733}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":24,"column":12,"offset":718},"end":{"line":24,"column":46,"offset":753}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":37,"column":20,"offset":1012},"end":{"line":37,"column":24,"offset":1017}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":38,"column":36,"offset":1056},"end":{"line":38,"column":40,"offset":1061}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":39,"column":9,"offset":1082},"end":{"line":39,"column":14,"offset":1088}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":39,"column":18,"offset":1091},"end":{"line":39,"column":22,"offset":1096}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":39,"column":18,"offset":1091},"end":{"line":39,"column":29,"offset":1103}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":42,"column":5,"offset":1129},"end":{"line":42,"column":9,"offset":1134}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":42,"column":23,"offset":1147},"end":{"line":42,"column":27,"offset":1152}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":42,"column":23,"offset":1147},"end":{"line":42,"column":34,"offset":1159}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":45,"column":7,"offset":1174},"end":{"line":45,"column":9,"offset":1177}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":45,"column":13,"offset":1180},"end":{"line":45,"column":13,"offset":1181}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":45,"column":13,"offset":1180},"end":{"line":45,"column":24,"offset":1192}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":45,"column":13,"offset":1180},"end":{"line":46,"column":16,"offset":1209}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":45,"column":13,"offset":1180},"end":{"line":47,"column":12,"offset":1222}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":45,"column":19,"offset":1186},"end":{"line":45,"column":23,"offset":1191}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":50,"column":5,"offset":1248},"end":{"line":50,"column":35,"offset":1279}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":50,"column":11,"offset":1254},"end":{"line":50,"column":13,"offset":1257}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":50,"column":11,"offset":1254},"end":{"line":50,"column":35,"offset":1279}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":50,"column":29,"offset":1272},"end":{"line":50,"column":34,"offset":1278}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":51,"column":5,"offset":1285},"end":{"line":51,"column":9,"offset":1290}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":51,"column":5,"offset":1285},"end":{"line":51,"column":25,"offset":1306}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":51,"column":20,"offset":1300},"end":{"line":51,"column":25,"offset":1306}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":54,"column":10,"offset":1322},"end":{"line":54,"column":12,"offset":1325}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":57,"column":21,"offset":1350},"end":{"line":57,"column":25,"offset":1355}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":58,"column":10,"offset":1368},"end":{"line":58,"column":10,"offset":1369}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":58,"column":10,"offset":1368},"end":{"line":58,"column":21,"offset":1380}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":58,"column":10,"offset":1368},"end":{"line":59,"column":16,"offset":1397}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":58,"column":10,"offset":1368},"end":{"line":60,"column":13,"offset":1411}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":58,"column":16,"offset":1374},"end":{"line":58,"column":20,"offset":1379}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":72,"column":17,"offset":1697},"end":{"line":72,"column":26,"offset":1707}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":73,"column":21,"offset":1736},"end":{"line":73,"column":25,"offset":1741}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":74,"column":12,"offset":1757},"end":{"line":74,"column":28,"offset":1774}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":74,"column":23,"offset":1768},"end":{"line":74,"column":27,"offset":1773}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":76,"column":7,"offset":1786},"end":{"line":76,"column":11,"offset":1791}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":76,"column":16,"offset":1795},"end":{"line":76,"column":20,"offset":1800}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":76,"column":16,"offset":1795},"end":{"line":76,"column":32,"offset":1812}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":76,"column":37,"offset":1816},"end":{"line":76,"column":41,"offset":1821}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":76,"column":37,"offset":1816},"end":{"line":76,"column":53,"offset":1833}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":76,"column":37,"offset":1816},"end":{"line":76,"column":58,"offset":1838}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":81,"column":11,"offset":2089},"end":{"line":81,"column":14,"offset":2093}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":81,"column":18,"offset":2096},"end":{"line":81,"column":22,"offset":2101}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":81,"column":18,"offset":2096},"end":{"line":81,"column":34,"offset":2113}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":81,"column":18,"offset":2096},"end":{"line":81,"column":39,"offset":2118}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":81,"column":18,"offset":2096},"end":{"line":81,"column":44,"offset":2123}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":82,"column":9,"offset":2133},"end":{"line":82,"column":12,"offset":2137}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":83,"column":14,"offset":2167},"end":{"line":83,"column":29,"offset":2183}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":83,"column":24,"offset":2177},"end":{"line":83,"column":28,"offset":2182}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":84,"column":16,"offset":2200},"end":{"line":84,"column":19,"offset":2204}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":85,"column":14,"offset":2232},"end":{"line":85,"column":30,"offset":2249}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":85,"column":25,"offset":2243},"end":{"line":85,"column":29,"offset":2248}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":92,"column":7,"offset":2425},"end":{"line":92,"column":11,"offset":2430}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":92,"column":31,"offset":2449},"end":{"line":92,"column":35,"offset":2454}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":93,"column":12,"offset":2482},"end":{"line":93,"column":16,"offset":2487}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":100,"column":10,"offset":2678},"end":{"line":100,"column":25,"offset":2694}},{"source":"/Users/jlaster/src/mozilla/debugger.html/src/utils/fromJS.js","type":"SourceFile","start":{"line":100,"column":20,"offset":2688},"end":{"line":100,"column":24,"offset":2693}}]},"percent":29}