simple-squiggle

map.js (6309B)

---

 "use strict";
 
 var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
 
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
 exports.ObjectWrappingMap = void 0;
 exports.assign = assign;
 exports.createEmptyMap = createEmptyMap;
 exports.createMap = createMap;
 exports.isMap = isMap;
 exports.toObject = toObject;
 
 var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
 
 var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
 
 var _customs = require("./customs.js");
 
 var _is = require("./is.js");
 
 function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
 
 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; }
 
 /**
  * A map facade on a bare object.
  *
  * The small number of methods needed to implement a scope,
  * forwarding on to the SafeProperty functions. Over time, the codebase
  * will stop using this method, as all objects will be Maps, rather than
  * more security prone objects.
  */
 var ObjectWrappingMap = /*#__PURE__*/function () {
   function ObjectWrappingMap(object) {
     (0, _classCallCheck2.default)(this, ObjectWrappingMap);
     this.wrappedObject = object;
   }
 
   (0, _createClass2.default)(ObjectWrappingMap, [{
     key: "keys",
     value: function keys() {
       return Object.keys(this.wrappedObject);
     }
   }, {
     key: "get",
     value: function get(key) {
       return (0, _customs.getSafeProperty)(this.wrappedObject, key);
     }
   }, {
     key: "set",
     value: function set(key, value) {
       (0, _customs.setSafeProperty)(this.wrappedObject, key, value);
       return this;
     }
   }, {
     key: "has",
     value: function has(key) {
       return (0, _customs.hasSafeProperty)(this.wrappedObject, key);
     }
   }]);
   return ObjectWrappingMap;
 }();
 /**
  * Creates an empty map, or whatever your platform's polyfill is.
  *
  * @returns an empty Map or Map like object.
  */
 
 
 exports.ObjectWrappingMap = ObjectWrappingMap;
 
 function createEmptyMap() {
   return new Map();
 }
 /**
  * Creates a Map from the given object.
  *
  * @param { Map | { [key: string]: unknown } | undefined } mapOrObject
  * @returns
  */
 
 
 function createMap(mapOrObject) {
   if (!mapOrObject) {
     return createEmptyMap();
   }
 
   if (isMap(mapOrObject)) {
     return mapOrObject;
   }
 
   if ((0, _is.isObject)(mapOrObject)) {
     return new ObjectWrappingMap(mapOrObject);
   }
 
   throw new Error('createMap can create maps from objects or Maps');
 }
 /**
  * Unwraps a map into an object.
  *
  * @param {Map} map
  * @returns { [key: string]: unknown }
  */
 
 
 function toObject(map) {
   if (map instanceof ObjectWrappingMap) {
     return map.wrappedObject;
   }
 
   var object = {};
 
   var _iterator = _createForOfIteratorHelper(map.keys()),
       _step;
 
   try {
     for (_iterator.s(); !(_step = _iterator.n()).done;) {
       var key = _step.value;
       var value = map.get(key);
       (0, _customs.setSafeProperty)(object, key, value);
     }
   } catch (err) {
     _iterator.e(err);
   } finally {
     _iterator.f();
   }
 
   return object;
 }
 /**
  * Returns `true` if the passed object appears to be a Map (i.e. duck typing).
  *
  * Methods looked for are `get`, `set`, `keys` and `has`.
  *
  * @param {Map | object} object
  * @returns
  */
 
 
 function isMap(object) {
   // We can use the fast instanceof, or a slower duck typing check.
   // The duck typing method needs to cover enough methods to not be confused with DenseMatrix.
   if (!object) {
     return false;
   }
 
   return object instanceof Map || object instanceof ObjectWrappingMap || typeof object.set === 'function' && typeof object.get === 'function' && typeof object.keys === 'function' && typeof object.has === 'function';
 }
 /**
  * Copies the contents of key-value pairs from each `objects` in to `map`.
  *
  * Object is `objects` can be a `Map` or object.
  *
  * This is the `Map` analog to `Object.assign`.
  */
 
 
 function assign(map) {
   for (var _len = arguments.length, objects = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
     objects[_key - 1] = arguments[_key];
   }
 
   for (var _i = 0, _objects = objects; _i < _objects.length; _i++) {
     var args = _objects[_i];
 
     if (!args) {
       continue;
     }
 
     if (isMap(args)) {
       var _iterator2 = _createForOfIteratorHelper(args.keys()),
           _step2;
 
       try {
         for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
           var key = _step2.value;
           map.set(key, args.get(key));
         }
       } catch (err) {
         _iterator2.e(err);
       } finally {
         _iterator2.f();
       }
     } else if ((0, _is.isObject)(args)) {
       for (var _i2 = 0, _Object$keys = Object.keys(args); _i2 < _Object$keys.length; _i2++) {
         var _key2 = _Object$keys[_i2];
         map.set(_key2, args[_key2]);
       }
     }
   }
 
   return map;
 }