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33 lines
938 B
33 lines
938 B
var setPrototypeOf = require("./setPrototypeOf"); |
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function isNativeReflectConstruct() { |
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if (typeof Reflect === "undefined" || !Reflect.construct) return false; |
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if (Reflect.construct.sham) return false; |
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if (typeof Proxy === "function") return true; |
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try { |
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Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); |
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return true; |
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} catch (e) { |
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return false; |
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} |
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} |
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function _construct(Parent, args, Class) { |
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if (isNativeReflectConstruct()) { |
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module.exports = _construct = Reflect.construct; |
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} else { |
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module.exports = _construct = function _construct(Parent, args, Class) { |
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var a = [null]; |
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a.push.apply(a, args); |
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var Constructor = Function.bind.apply(Parent, a); |
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var instance = new Constructor(); |
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if (Class) setPrototypeOf(instance, Class.prototype); |
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return instance; |
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}; |
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} |
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return _construct.apply(null, arguments); |
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} |
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module.exports = _construct; |