| 1 | 'use strict';
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| 2 |
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| 3 | var GetIntrinsic = require('get-intrinsic');
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| 4 |
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| 5 | var $SyntaxError = require('es-errors/syntax');
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| 6 | var $TypeError = require('es-errors/type');
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| 7 | var isObject = require('es-object-atoms/isObject');
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| 8 | var $Promise = GetIntrinsic('%Promise%', true);
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| 9 |
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| 10 | var callBound = require('call-bound');
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| 11 |
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| 12 | var CreateIterResultObject = require('./CreateIterResultObject');
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| 13 | var IteratorComplete = require('./IteratorComplete');
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| 14 | var IteratorValue = require('./IteratorValue');
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| 15 | var PromiseResolve = require('./PromiseResolve');
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| 16 |
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| 17 | var $then = callBound('Promise.prototype.then', true);
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| 18 |
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| 19 | // https://262.ecma-international.org/10.0/#sec-asyncfromsynciteratorcontinuation
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| 20 |
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| 21 | module.exports = function AsyncFromSyncIteratorContinuation(result) {
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| 22 | if (!isObject(result)) {
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| 23 | throw new $TypeError('Assertion failed: Type(O) is not Object');
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| 24 | }
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| 25 |
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| 26 | if (arguments.length > 1) {
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| 27 | throw new $SyntaxError('although AsyncFromSyncIteratorContinuation should take a second argument, it is not used in this implementation');
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| 28 | }
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| 29 |
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| 30 | if (!$Promise) {
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| 31 | throw new $SyntaxError('This environment does not support Promises.');
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| 32 | }
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| 33 |
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| 34 | return new $Promise(function (resolve) {
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| 35 | var done = IteratorComplete(result); // step 2
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| 36 | var value = IteratorValue(result); // step 4
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| 37 | var valueWrapper = PromiseResolve($Promise, value); // step 6
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| 38 |
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| 39 | // eslint-disable-next-line no-shadow
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| 40 | var onFulfilled = function (value) { // steps 8-9
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| 41 | return CreateIterResultObject(value, done); // step 8.a
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| 42 | };
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| 43 | resolve($then(valueWrapper, onFulfilled)); // step 11
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| 44 | }); // step 12
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| 45 | };
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