Sha256: 2f50e24d680981259e2a9b99e1b82047e45bf9009d398e0c510dcf10c295bae4
Contents?: true
Size: 1.48 KB
Versions: 135
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Stored size: 1.48 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $SyntaxError = GetIntrinsic('%SyntaxError%');
var $TypeError = GetIntrinsic('%TypeError%');
var $Promise = GetIntrinsic('%Promise%', true);
var callBound = require('call-bind/callBound');
var CreateIterResultObject = require('./CreateIterResultObject');
var IteratorComplete = require('./IteratorComplete');
var IteratorValue = require('./IteratorValue');
var PromiseResolve = require('./PromiseResolve');
var Type = require('./Type');
var $then = callBound('Promise.prototype.then', true);
// https://262.ecma-international.org/10.0/#sec-asyncfromsynciteratorcontinuation
module.exports = function AsyncFromSyncIteratorContinuation(result) {
if (Type(result) !== 'Object') {
throw new $TypeError('Assertion failed: Type(O) is not Object');
}
if (arguments.length > 1) {
throw new $SyntaxError('although AsyncFromSyncIteratorContinuation should take a second argument, it is not used in this implementation');
}
if (!$Promise) {
throw new $SyntaxError('This environment does not support Promises.');
}
return new Promise(function (resolve) {
var done = IteratorComplete(result); // step 2
var value = IteratorValue(result); // step 4
var valueWrapper = PromiseResolve($Promise, value); // step 6
// eslint-disable-next-line no-shadow
var onFulfilled = function (value) { // steps 8-9
return CreateIterResultObject(value, done); // step 8.a
};
resolve($then(valueWrapper, onFulfilled)); // step 11
}); // step 12
};
Version data entries
135 entries across 27 versions & 2 rubygems