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28 lines
1.0 KiB
JavaScript
28 lines
1.0 KiB
JavaScript
// Copyright (C) 2018 Valerie Young. 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-asyncgeneratorfunction
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description: >
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When invoked via the function invocation pattern with multiple arguments,
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the AsyncGeneratorFunction intrinsic creates a valid generator whose body is the
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last argument evaluated as source code and whose formal parameters are
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defined by the preceding arguments.
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features: [async-iteration]
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flags: [async]
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---*/
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var AsyncGeneratorFunction = Object.getPrototypeOf(async function* () {}).constructor;
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var g = AsyncGeneratorFunction('x', 'y', 'yield x + y;');
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var iter = g(2, 3);
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iter.next().then(function(result) {
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assert.sameValue(result.value, 5, 'First result `value`');
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assert.sameValue(result.done, false, 'First result `done` flag');
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}).then(undefined, $DONE)
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iter.next().then(function(result) {
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assert.sameValue(result.value, undefined, 'Final result `value`');
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assert.sameValue(result.done, true, 'Final result `done` flag');
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}).then($DONE, $DONE)
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