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33 lines
1.0 KiB
JavaScript
33 lines
1.0 KiB
JavaScript
// Copyright 2017 the V8 project authors. 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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author: Caitlin Potter <caitp@igalia.com>
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esid: sec-generator-function-definitions
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description: >
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`yield` expressions may be used as the right-hand-side of other `yield`
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expressions.
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flags: [async]
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features: [async-iteration]
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---*/
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var g = async function*() {
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yield yield 1;
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};
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var iter = g();
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iter.next().then(function(result) {
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assert.sameValue(result.value, 1, 'First result `value`');
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assert.sameValue(result.done, false, 'First result `done` flag');
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}).then(undefined, $DONE);
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iter.next().then(function(result) {
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assert.sameValue(result.value, undefined, 'Second result `value`');
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assert.sameValue(result.done, false, 'Second result `done` flag');
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}).then(undefined, $DONE);
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iter.next().then(function(result) {
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assert.sameValue(result.value, undefined, 'Third result `value`');
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assert.sameValue(result.done, true, 'Thid result `done` flag');
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}).then($DONE, $DONE);
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