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37 lines
1.1 KiB
37 lines
1.1 KiB
import getPrototypeOf from "./getPrototypeOf.js"; |
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import setPrototypeOf from "./setPrototypeOf.js"; |
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import isNativeFunction from "./isNativeFunction.js"; |
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import construct from "./construct.js"; |
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export default function _wrapNativeSuper(Class) { |
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var _cache = typeof Map === "function" ? new Map() : undefined; |
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_wrapNativeSuper = function _wrapNativeSuper(Class) { |
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if (Class === null || !isNativeFunction(Class)) return Class; |
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if (typeof Class !== "function") { |
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throw new TypeError("Super expression must either be null or a function"); |
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} |
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if (typeof _cache !== "undefined") { |
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if (_cache.has(Class)) return _cache.get(Class); |
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_cache.set(Class, Wrapper); |
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} |
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function Wrapper() { |
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return construct(Class, arguments, getPrototypeOf(this).constructor); |
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} |
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Wrapper.prototype = Object.create(Class.prototype, { |
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constructor: { |
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value: Wrapper, |
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enumerable: false, |
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writable: true, |
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configurable: true |
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} |
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}); |
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return setPrototypeOf(Wrapper, Class); |
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}; |
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return _wrapNativeSuper(Class); |
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} |