yield-star-getiter-sync-not-callable-string-throw.js (2053B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-getiter-sync-not-callable-string-throw.case 4 // - src/async-generators/default/async-class-expr-method.template 5 /*--- 6 description: Throws a TypeError on a non-callable [Symbol.iterator] (string) (Async generator method as a ClassExpression element) 7 esid: prod-AsyncGeneratorMethod 8 features: [Symbol.iterator, 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 1. Let exprRef be the result of evaluating AssignmentExpression. 26 2. Let value be ? GetValue(exprRef). 27 3. Let generatorKind be ! GetGeneratorKind(). 28 4. Let iterator be ? GetIterator(value, generatorKind). 29 ... 30 31 GetIterator ( obj [ , hint ] ) 32 33 ... 34 3. If hint is async, 35 a. Set method to ? GetMethod(obj, @@asyncIterator). 36 b. If method is undefined, 37 i. Let syncMethod be ? GetMethod(obj, @@iterator). 38 ... 39 40 GetMethod ( V, P ) 41 42 ... 43 2. Let func be ? GetV(V, P). 44 ... 45 4. If IsCallable(func) is false, throw a TypeError exception. 46 ... 47 48 ---*/ 49 var obj = { 50 [Symbol.iterator]: '' 51 }; 52 53 54 55 var callCount = 0; 56 57 var C = class { async *gen() { 58 callCount += 1; 59 yield* obj; 60 throw new Test262Error('abrupt completion closes iter'); 61 62 }} 63 64 var gen = C.prototype.gen; 65 66 var iter = gen(); 67 68 iter.next().then(() => { 69 throw new Test262Error('Promise incorrectly fulfilled.'); 70 }, v => { 71 assert.sameValue(v.constructor, TypeError, "TypeError"); 72 73 iter.next().then(({ done, value }) => { 74 assert.sameValue(done, true, 'the iterator is completed'); 75 assert.sameValue(value, undefined, 'value is undefined'); 76 }).then($DONE, $DONE); 77 }).catch($DONE); 78 79 assert.sameValue(callCount, 1);