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|
// |reftest| async
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Resolving with a reference to the promise itself
es6id: 25.4.4.3
info: |
[...]
6. Let promiseCapability be NewPromiseCapability(C).
[...]
11. Let result be PerformPromiseRace(iteratorRecord, promiseCapability, C).
[...]
25.4.4.3.1 Runtime Semantics: PerformPromiseRace
1. Repeat
[...]
j. Let result be Invoke(nextPromise, "then",
«promiseCapability.[[Resolve]], promiseCapability.[[Reject]]»).
25.4.1.3.2 Promise Resolve Functions
[...]
6. If SameValue(resolution, promise) is true, then
a. Let selfResolutionError be a newly created TypeError object.
b. Return RejectPromise(promise, selfResolutionError).
flags: [async]
---*/
var self, resolve;
var builtinResolve = Promise.resolve;
var thenable = {
then: function(r) {
resolve = r;
}
};
try {
Promise.resolve = function(v) {
return v;
};
self = Promise.race([thenable]);
} finally {
Promise.resolve = builtinResolve;
}
resolve(self);
self.then(function() {
$DONE('The promise should not be fulfilled.');
}, function(value) {
if (!value) {
$DONE('The promise should be rejected with a value.');
return;
}
if (value.constructor !== TypeError) {
$DONE('The promise should be rejected with a TypeError instance.');
return;
}
$DONE();
});
|
