Edit File: GetPrototypeFromConstructor.js
'use strict'; var GetIntrinsic = require('get-intrinsic'); var $Function = GetIntrinsic('%Function%'); var $TypeError = GetIntrinsic('%TypeError%'); var Get = require('./Get'); var IsConstructor = require('./IsConstructor'); var Type = require('./Type'); // https://ecma-international.org/ecma-262/6.0/#sec-getprototypefromconstructor module.exports = function GetPrototypeFromConstructor(constructor, intrinsicDefaultProto) { var intrinsic = GetIntrinsic(intrinsicDefaultProto); // throws if not a valid intrinsic if (!IsConstructor(constructor)) { throw new $TypeError('Assertion failed: `constructor` must be a constructor'); } var proto = Get(constructor, 'prototype'); if (Type(proto) !== 'Object') { if (!(constructor instanceof $Function)) { // ignore other realms, for now throw new $TypeError('cross-realm constructors not currently supported'); } proto = intrinsic; } return proto; };
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