Strict mode Failing
Expected no error, got SyntaxError: async generators are unsupported
non-Strict mode Failing
Expected no error, got SyntaxError: async generators are unsupported
Features:
- async-iteration
Expected no error, got SyntaxError: async generators are unsupported
Expected no error, got SyntaxError: async generators are unsupported
// Copyright (C) 2018 Valerie Young. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-%asyncfromsynciteratorprototype%.next description: next() returns a promise for an IteratorResult object info: | %AsyncFromSyncIteratorPrototype%.next ( value ) ... 2. Let promiseCapability be ! NewPromiseCapability(%Promise%). ... 5. Let nextResult be IteratorNext(syncIteratorRecord, value). 6. IfAbruptRejectPromise(nextResult, promiseCapability). 7. Let nextDone be IteratorComplete(nextResult). 8. If AbruptRejectPromise(nextDone, promiseCapability). 9. Let nextValue be IteratorValue(nextResult). 10. IfAbruptRejectPromise(nextValue, promiseCapability). ... 14. Let steps be the algorithm steps defined in Async-from-Sync Iterator Value Unwrap Functions. Async-from-Sync Iterator Value Unwrap Functions 1. Return ! CreateIterResultObject(value, F.[[Done]]). flags: [async] features: [async-iteration] ---*/ function* g() {} async function* asyncg() { yield* g(); } asyncg().next().then(function (result) { assert( Object.prototype.hasOwnProperty.call(result, 'value'), 'Has "own" property `value`' ); assert( Object.prototype.hasOwnProperty.call(result, 'done'), 'Has "own" property `done`' ); assert.sameValue(Object.getPrototypeOf(result), Object.prototype); }).then($DONE, $DONE);