yield-star-next-call-done-get-abrupt.js (2010B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-next-call-done-get-abrupt.case 4 // - src/async-generators/default/async-class-decl-method.template 5 /*--- 6 description: Abrupt completion while getting done (Async Generator method as a ClassDeclaration element) 7 esid: prod-AsyncGeneratorMethod 8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration] 9 flags: [generated, async] 10 info: | 11 ClassElement : 12 MethodDefinition 13 14 MethodDefinition : 15 AsyncGeneratorMethod 16 17 Async Generator Function Definitions 18 19 AsyncGeneratorMethod : 20 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } 21 22 23 YieldExpression: yield * AssignmentExpression 24 ... 25 6. Repeat 26 a. If received.[[Type]] is normal, then 27 ii. Let innerResult be ? Invoke(iterator, "next", 28 « received.[[Value]] »). 29 iii. If generatorKind is async, then set innerResult to 30 ? Await(innerResult). 31 ... 32 v. Let done be ? IteratorComplete(innerResult). 33 ... 34 35 ---*/ 36 var reason = {}; 37 var obj = { 38 get [Symbol.iterator]() { 39 throw new Test262Error('it should not get Symbol.iterator'); 40 }, 41 [Symbol.asyncIterator]() { 42 return { 43 next() { 44 return { 45 get done() { 46 throw reason; 47 } 48 }; 49 } 50 }; 51 } 52 }; 53 54 55 56 var callCount = 0; 57 58 class C { async *gen() { 59 callCount += 1; 60 yield* obj; 61 throw new Test262Error('abrupt completion closes iter'); 62 63 }} 64 65 var gen = C.prototype.gen; 66 67 var iter = gen(); 68 69 iter.next().then(() => { 70 throw new Test262Error('Promise incorrectly fulfilled.'); 71 }, v => { 72 assert.sameValue(v, reason, "reject reason"); 73 74 iter.next().then(({ done, value }) => { 75 assert.sameValue(done, true, 'the iterator is completed'); 76 assert.sameValue(value, undefined, 'value is undefined'); 77 }).then($DONE, $DONE); 78 }).catch($DONE); 79 80 assert.sameValue(callCount, 1);