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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-promise.all
description: >
Iterator is not closed when the "resolve" capability returns an abrupt
completion.
info: |
1. Let C be the this value.
[...]
3. Let promiseCapability be ? NewPromiseCapability(C).
[...]
7. Let result be PerformPromiseAll(iteratorRecord, C, promiseCapability).
8. If result is an abrupt completion, then
a. If iteratorRecord.[[Done]] is false, let result be
IteratorClose(iterator, result).
b. IfAbruptRejectPromise(result, promiseCapability).
25.4.4.1.1 Runtime Semantics: PerformPromiseAll
[...]
6. Repeat
[...]
d. If next is false, then
[...]
iii. If remainingElementsCount.[[Value]] is 0, then
1. Let valuesArray be CreateArrayFromList(values).
2. Perform ? Call(resultCapability.[[Resolve]], undefined, «
valuesArray »).
25.4.1.1.1 IfAbruptRejectPromise
IfAbruptRejectPromise is a short hand for a sequence of algorithm steps that
use a PromiseCapability Record. An algorithm step of the form:
1. IfAbruptRejectPromise(value, capability).
means the same thing as:
1. If value is an abrupt completion, then
a. Perform ? Call(capability.[[Reject]], undefined, « value.[[Value]] »).
b. Return capability.[[Promise]].
2. Else if value is a Completion Record, let value be value.[[Value]].
features: [Symbol.iterator]
---*/
var nextCount = 0;
var returnCount = 0;
var iter = {};
iter[Symbol.iterator] = function() {
return {
next: function() {
nextCount += 1;
return {
done: true
};
},
return: function() {
returnCount += 1;
return {};
}
};
};
var P = function(executor) {
return new Promise(function(_, reject) {
executor(function() {
throw new Test262Error();
}, reject);
});
};
P.resolve = Promise.resolve;
Promise.all.call(P, iter);
assert.sameValue(nextCount, 1);
assert.sameValue(returnCount, 0);
reportCompare(0, 0);
|
