// |reftest| async // This file was procedurally generated from the following sources: // - src/async-generators/yield-star-getiter-sync-returns-abrupt.case // - src/async-generators/default/async-declaration.template /*--- description: Abrupt completion while calling [Symbol.iterator] (Async generator Function declaration) esid: prod-AsyncGeneratorDeclaration features: [Symbol.iterator, Symbol.asyncIterator, async-iteration] flags: [generated, async] info: | Async Generator Function Definitions AsyncGeneratorDeclaration: async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } YieldExpression: yield * AssignmentExpression 1. Let exprRef be the result of evaluating AssignmentExpression. 2. Let value be ? GetValue(exprRef). 3. Let generatorKind be ! GetGeneratorKind(). 4. Let iterator be ? GetIterator(value, generatorKind). ... GetIterator ( obj [ , hint ] ) ... 3. If hint is async, a. Set method to ? GetMethod(obj, @@asyncIterator). i. Let syncMethod be ? GetMethod(obj, @@iterator). ii. Let syncIterator be ? Call(syncMethod, obj). ... ---*/ var reason = {}; var obj = { [Symbol.iterator]() { throw reason; } }; var callCount = 0; async function *gen() { callCount += 1; yield* obj; throw new Test262Error('abrupt completion closes iter'); } var iter = gen(); iter.next().then(() => { throw new Test262Error('Promise incorrectly fulfilled.'); }, v => { assert.sameValue(v, reason, "reject reason"); iter.next().then(({ done, value }) => { assert.sameValue(done, true, 'the iterator is completed'); assert.sameValue(value, undefined, 'value is undefined'); }).then($DONE, $DONE); }).catch($DONE); assert.sameValue(callCount, 1);