Last change
on this file since 1ad8e64 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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1 | import getPrototypeOf from "./getPrototypeOf.js";
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2 | import setPrototypeOf from "./setPrototypeOf.js";
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3 | import isNativeFunction from "./isNativeFunction.js";
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4 | import construct from "./construct.js";
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5 | export default function _wrapNativeSuper(Class) {
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6 | var _cache = typeof Map === "function" ? new Map() : undefined;
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7 |
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8 | _wrapNativeSuper = function _wrapNativeSuper(Class) {
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9 | if (Class === null || !isNativeFunction(Class)) return Class;
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10 |
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11 | if (typeof Class !== "function") {
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12 | throw new TypeError("Super expression must either be null or a function");
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13 | }
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14 |
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15 | if (typeof _cache !== "undefined") {
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16 | if (_cache.has(Class)) return _cache.get(Class);
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17 |
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18 | _cache.set(Class, Wrapper);
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19 | }
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20 |
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21 | function Wrapper() {
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22 | return construct(Class, arguments, getPrototypeOf(this).constructor);
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23 | }
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24 |
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25 | Wrapper.prototype = Object.create(Class.prototype, {
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26 | constructor: {
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27 | value: Wrapper,
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28 | enumerable: false,
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29 | writable: true,
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30 | configurable: true
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31 | }
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32 | });
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33 | return setPrototypeOf(Wrapper, Class);
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34 | };
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35 |
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36 | return _wrapNativeSuper(Class);
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37 | } |
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