mirror of https://github.com/tc39/test262.git
42 lines
981 B
JavaScript
42 lines
981 B
JavaScript
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// Copyright (C) 2022 Kevin Gibbons. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-generator-function-definitions-runtime-semantics-evaluation
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description: >
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`yield*` in an async generator does not await promises returned by a manually implemented async iterator.
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flags: [async]
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features: [async-iteration]
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---*/
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var innerPromise = Promise.resolve("unwrapped value");
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var asyncIter = {
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[Symbol.asyncIterator]() {
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return this;
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},
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next() {
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return {
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done: false,
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value: innerPromise,
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};
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},
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get return() {
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throw new Test262Error(".return should not be accessed");
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},
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get throw() {
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throw new Test262Error(".throw should not be accessed");
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},
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};
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async function* f() {
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yield* asyncIter;
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}
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f()
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.next()
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.then(v => {
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assert.sameValue(v.value, innerPromise, "yield* should not unwrap promises from manually-implemented async iterators");
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})
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.then($DONE, $DONE)
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