async-gen-yield-star-getiter-sync-not-callable-object-throw.js (1906B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-getiter-sync-not-callable-object-throw.case 4 // - src/async-generators/default/async-obj-method.template 5 /*--- 6 description: Throws a TypeError on a non-callable [Symbol.iterator] (object) (Async generator method) 7 esid: prod-AsyncGeneratorMethod 8 features: [Symbol.iterator, 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 1. Let exprRef be the result of evaluating AssignmentExpression. 20 2. Let value be ? GetValue(exprRef). 21 3. Let generatorKind be ! GetGeneratorKind(). 22 4. Let iterator be ? GetIterator(value, generatorKind). 23 ... 24 25 GetIterator ( obj [ , hint ] ) 26 27 ... 28 3. If hint is async, 29 a. Set method to ? GetMethod(obj, @@asyncIterator). 30 b. If method is undefined, 31 i. Let syncMethod be ? GetMethod(obj, @@iterator). 32 ... 33 34 GetMethod ( V, P ) 35 36 ... 37 2. Let func be ? GetV(V, P). 38 ... 39 4. If IsCallable(func) is false, throw a TypeError exception. 40 ... 41 42 ---*/ 43 var obj = { 44 [Symbol.iterator]: {} 45 }; 46 47 48 var callCount = 0; 49 50 var gen = { 51 async *method() { 52 callCount += 1; 53 yield* obj; 54 throw new Test262Error('abrupt completion closes iter'); 55 56 } 57 }.method; 58 59 var iter = gen(); 60 61 iter.next().then(() => { 62 throw new Test262Error('Promise incorrectly fulfilled.'); 63 }, v => { 64 assert.sameValue(v.constructor, TypeError, "TypeError"); 65 66 iter.next().then(({ done, value }) => { 67 assert.sameValue(done, true, 'the iterator is completed'); 68 assert.sameValue(value, undefined, 'value is undefined'); 69 }).then($DONE, $DONE); 70 }).catch($DONE); 71 72 assert.sameValue(callCount, 1);