mirror of https://github.com/tc39/test262.git
27 lines
1.0 KiB
JavaScript
27 lines
1.0 KiB
JavaScript
|
// Copyright (C) 2018 Valerie Young. All rights reserved.
|
||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
||
|
|
/*---
|
||
|
|
esid: sec-asyncgeneratorfunction
|
||
|
|
description: >
|
||
|
|
When invoked via the function invocation pattern with multiple arguments,
|
||
|
|
the AsyncGeneratorFunction intrinsic creates a valid generator whose body is the
|
||
|
|
last argument evaluated as source code and whose formal parameters are
|
||
|
|
defined by the preceeding arguments.
|
||
|
|
features: [async-iteration]
|
||
|
|
---*/
|
||
|
|
|
||
|
|
var AsyncGeneratorFunction = Object.getPrototypeOf(async function* () {}).constructor;
|
||
|
|
|
||
|
|
var g = AsyncGeneratorFunction('x', 'y', 'yield x + y;');
|
||
|
|
var iter = g(2, 3);
|
||
|
|
|
||
|
|
iter.next().then(function(result) {
|
||
|
|
assert.sameValue(result.value, 5, 'First result `value`');
|
||
|
|
assert.sameValue(result.done, false, 'First result `done` flag');
|
||
|
|
}).then(undefined, $DONE)
|
||
|
|
|
||
|
|
iter.next().then(function(result) {
|
||
|
|
assert.sameValue(result.value, undefined, 'Final result `value`');
|
||
|
|
assert.sameValue(result.done, true, 'Final result `done` flag');
|
||
|
|
}).then($DONE, $DONE)
|