lr-core/subclassable/array.js

Line Rider core library

'use strict';

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

var _assignPrototype = require('./assignPrototype.js');

var _assignPrototype2 = _interopRequireDefault(_assignPrototype);

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

class SubclassableArray {
  constructor(...args) {
    this.__array__ = new Array(...args);
  }
  toArray() {
    return this.__array__;
  }
  get(i) {
    return this.__array__[i];
  }
  set(i, v) {
    this.__array__[i] = v;
  }
  get length() {
    return this.__array__.length;
  }
  [Symbol.iterator]() {
    return this.__array__[Symbol.iterator]();
  }
}
(0, _assignPrototype2.default)(Array, SubclassableArray, '__array__');

const ARRAY_SUBCLASSABLE = (() => {
  class C extends Array {}
  var c = new C();
  return c.concat(1) instanceof C;
})();

exports.default = ARRAY_SUBCLASSABLE ? class extends Array {
  toArray() {
    return this;
  }
  get(i) {
    return this[i];
  }
  set(i, v) {
    this[i] = v;
  }
} : SubclassableArray;