Last change
on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 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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