async-gen-yield-star-next-call-value-get-abrupt.js (1922B)
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-obj-method.template 5 /*--- 6 description: Abrupt completion while getting value (Async generator method) 7 esid: prod-AsyncGeneratorMethod 8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration] 9 flags: [generated, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorMethod : 14 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } 15 16 17 YieldExpression: yield * AssignmentExpression 18 ... 19 6. Repeat 20 a. If received.[[Type]] is normal, then 21 ii. Let innerResult be ? Invoke(iterator, "next", 22 « received.[[Value]] »). 23 iii. If generatorKind is async, then set innerResult to 24 ? Await(innerResult). 25 ... 26 vi. If done is true, then 27 1. Return ? IteratorValue(innerResult). 28 ... 29 30 ---*/ 31 var reason = {}; 32 var obj = { 33 get [Symbol.iterator]() { 34 throw new Test262Error('it should not get Symbol.iterator'); 35 }, 36 [Symbol.asyncIterator]() { 37 return { 38 next() { 39 return { 40 done: true, 41 get value() { 42 throw reason; 43 } 44 }; 45 } 46 }; 47 } 48 }; 49 50 51 var callCount = 0; 52 53 var gen = { 54 async *method() { 55 callCount += 1; 56 yield* obj; 57 throw new Test262Error('abrupt completion closes iter'); 58 59 } 60 }.method; 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);