yield-star-next-call-value-get-abrupt.js (1937B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-next-call-value-get-abrupt.case 4 // - src/async-generators/default/async-declaration.template 5 /*--- 6 description: Abrupt completion while getting value (Async generator Function declaration) 7 esid: prod-AsyncGeneratorDeclaration 8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration] 9 flags: [generated, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorDeclaration: 14 async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { 15 AsyncGeneratorBody } 16 17 18 YieldExpression: yield * AssignmentExpression 19 ... 20 6. Repeat 21 a. If received.[[Type]] is normal, then 22 ii. Let innerResult be ? Invoke(iterator, "next", 23 « received.[[Value]] »). 24 iii. If generatorKind is async, then set innerResult to 25 ? Await(innerResult). 26 ... 27 vi. If done is true, then 28 1. Return ? IteratorValue(innerResult). 29 ... 30 31 ---*/ 32 var reason = {}; 33 var obj = { 34 get [Symbol.iterator]() { 35 throw new Test262Error('it should not get Symbol.iterator'); 36 }, 37 [Symbol.asyncIterator]() { 38 return { 39 next() { 40 return { 41 done: true, 42 get value() { 43 throw reason; 44 } 45 }; 46 } 47 }; 48 } 49 }; 50 51 52 53 var callCount = 0; 54 55 async function *gen() { 56 callCount += 1; 57 yield* obj; 58 throw new Test262Error('abrupt completion closes iter'); 59 60 } 61 62 var iter = gen(); 63 64 iter.next().then(() => { 65 throw new Test262Error('Promise incorrectly fulfilled.'); 66 }, v => { 67 assert.sameValue(v, reason, "reject reason"); 68 69 iter.next().then(({ done, value }) => { 70 assert.sameValue(done, true, 'the iterator is completed'); 71 assert.sameValue(value, undefined, 'value is undefined'); 72 }).then($DONE, $DONE); 73 }).catch($DONE); 74 75 assert.sameValue(callCount, 1);