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-asyncgenerator-prototype-return description: > "return" returns a promise for an IteratorResult object info: | AsyncGenerator.prototype.return ( value ) 1. Let generator be the this value. 2. Let completion be Completion{[[Type]]: return, [[Value]]: value, [[Target]]: empty}. 3. Return ! AsyncGeneratorEnqueue(generator, completion). AsyncGeneratorEnqueue ( generator, completion ) ... 4. Let queue be generator.[[AsyncGeneratorQueue]]. 5. Let request be AsyncGeneratorRequest{[[Completion]]: completion, [[Capability]]: promiseCapability}. 6. Append request to the end of queue. ... AsyncGeneratorResolve ( generator, value, done ) 1. Assert: generator is an AsyncGenerator instance. 2. Let queue be generator.[[AsyncGeneratorQueue]]. 3. Assert: queue is not an empty List. 4. Remove the first element from queue and let next be the value of that element. 5. Let promiseCapability be next.[[Capability]]. 6. Let iteratorResult be ! CreateIterResultObject(value, done). 7. Perform ! Call(promiseCapability.[[Resolve]], undefined, « iteratorResult »). ... flags: [async] features: [async-iteration] ---*/ async function* g() {} g().return().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)