mirror of https://github.com/tc39/test262.git
86 lines
2.1 KiB
JavaScript
86 lines
2.1 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/async-generators/yield-star-getiter-async-undefined-sync-get-abrupt.case
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// - src/async-generators/default/async-class-expr-static-method.template
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/*---
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description: Abrupt completion while getting @@iterator after undefined @@asyncIterator (Static async generator method as a ClassExpression element)
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esid: prod-AsyncGeneratorMethod
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features: [Symbol.asyncIterator, async-iteration]
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flags: [generated, async]
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info: |
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ClassElement :
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static MethodDefinition
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MethodDefinition :
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AsyncGeneratorMethod
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Async Generator Function Definitions
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AsyncGeneratorMethod :
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async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
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YieldExpression: yield * AssignmentExpression
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1. Let exprRef be the result of evaluating AssignmentExpression.
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2. Let value be ? GetValue(exprRef).
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3. Let generatorKind be ! GetGeneratorKind().
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4. Let iterator be ? GetIterator(value, generatorKind).
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...
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GetIterator ( obj [ , hint ] )
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...
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3. If hint is async,
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a. Set method to ? GetMethod(obj, @@asyncIterator).
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b. If method is undefined,
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i. Let syncMethod be ? GetMethod(obj, @@iterator).
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...
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GetMethod ( V, P )
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...
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2. Let func be ? GetV(V, P).
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...
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---*/
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var calls = 0;
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var reason = {};
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var obj = {
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get [Symbol.iterator]() {
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throw reason;
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},
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get [Symbol.asyncIterator]() {
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calls += 1;
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return undefined;
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}
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};
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var callCount = 0;
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var C = class { static async *gen() {
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callCount += 1;
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yield* obj;
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throw new Test262Error('abrupt completion closes iter');
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}}
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var gen = C.gen;
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var iter = gen();
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iter.next().then(() => {
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throw new Test262Error('Promise incorrectly fulfilled.');
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}, v => {
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assert.sameValue(v, reason, 'reject reason');
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assert.sameValue(calls, 1);
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iter.next().then(({ done, value }) => {
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assert.sameValue(done, true, 'the iterator is completed');
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assert.sameValue(value, undefined, 'value is undefined');
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}).then($DONE, $DONE);
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}).catch($DONE);
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assert.sameValue(callCount, 1);
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