mirror of
https://github.com/tc39/test262.git
synced 2025-07-28 00:14:35 +02:00
Tests using yield*, also to test codepath via .throw()
This includes the test case mentioned in ecma262 issue comment: https://github.com/tc39/ecma262/issues/1849#issuecomment-576912421 Also using yield* we can test the changes to AsyncFromSyncIteratorContinuation when called via .throw().
This commit is contained in:
parent
2e44b8f13f
commit
fed13c1915
@ -0,0 +1,62 @@
|
|||||||
|
// Copyright (C) 2024 Igalia, S.L. All rights reserved.
|
||||||
|
// This code is governed by the BSD license found in the LICENSE file.
|
||||||
|
|
||||||
|
/*---
|
||||||
|
esid: sec-%asyncfromsynciteratorprototype%.next
|
||||||
|
description: next() will reject promise if resolving result promise abrupt completes.
|
||||||
|
info: |
|
||||||
|
%AsyncFromSyncIteratorPrototype%.next ( value )
|
||||||
|
...
|
||||||
|
3. Let promiseCapability be ! NewPromiseCapability(%Promise%).
|
||||||
|
4. Let syncIteratorRecord be O.[[SyncIteratorRecord]].
|
||||||
|
5. If value is present, then
|
||||||
|
...
|
||||||
|
6. Else,
|
||||||
|
a. Let result be IteratorNext(syncIteratorRecord).
|
||||||
|
7. IfAbruptRejectPromise(result, promiseCapability).
|
||||||
|
8. Return ! AsyncFromSyncIteratorContinuation(result, promiseCapability, syncIteratorRecord, true).
|
||||||
|
|
||||||
|
AsyncFromSyncIteratorContinuation ( result, promiseCapability, syncIteratorRecord, closeOnRejection )
|
||||||
|
1. Let done be IteratorComplete(result).
|
||||||
|
2. IfAbruptRejectPromise(done, promiseCapability).
|
||||||
|
3. Let value be IteratorValue(result).
|
||||||
|
4. IfAbruptRejectPromise(value, promiseCapability).
|
||||||
|
5. Let valueWrapper be PromiseResolve(%Promise%, value).
|
||||||
|
6. If valueWrapper is an abrupt completion, done is false, and closeOnRejection is true, then
|
||||||
|
a. Set valueWrapper to IteratorClose(syncIteratorRecord, valueWrapper).
|
||||||
|
...
|
||||||
|
12. If done is true, or if closeOnRejection is false, then
|
||||||
|
...
|
||||||
|
13. Else,
|
||||||
|
a. Let closeIterator be a new Abstract Closure with parameters (error) that captures syncIteratorRecord and performs the following steps when called:
|
||||||
|
i. Return ? IteratorClose(syncIteratorRecord, ThrowCompletion(error)).
|
||||||
|
b. Let onRejected be CreateBuiltinFunction(closeIterator, 1, "", « »).
|
||||||
|
c. NOTE: onRejected is used to close the Iterator when the "value" property of an IteratorResult object it yields is a rejected promise.
|
||||||
|
14. Perform PerformPromiseThen(valueWrapper, onFulfilled, onRejected, promiseCapability).
|
||||||
|
15. Return promiseCapability.[[Promise]].
|
||||||
|
|
||||||
|
|
||||||
|
flags: [async]
|
||||||
|
features: [async-iteration]
|
||||||
|
includes: [asyncHelpers.js]
|
||||||
|
---*/
|
||||||
|
|
||||||
|
var finallyCount = 0;
|
||||||
|
function Reject() {}
|
||||||
|
|
||||||
|
function* iterator() {
|
||||||
|
try {
|
||||||
|
yield Promise.reject(new Reject());
|
||||||
|
} finally {
|
||||||
|
finallyCount += 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function* asyncIterator() {
|
||||||
|
yield* iterator()
|
||||||
|
}
|
||||||
|
|
||||||
|
asyncTest(async () => {
|
||||||
|
await assert.throwsAsync(Reject, async () => asyncIterator().next(), "Promise should be rejected");
|
||||||
|
assert.sameValue(finallyCount, 1);
|
||||||
|
});
|
@ -0,0 +1,67 @@
|
|||||||
|
// Copyright (C) 2024 Igalia, S.L. All rights reserved.
|
||||||
|
// This code is governed by the BSD license found in the LICENSE file.
|
||||||
|
|
||||||
|
/*---
|
||||||
|
esid: sec-%asyncfromsynciteratorprototype%.next
|
||||||
|
description: next() will reject promise if resolving result promise abrupt completes.
|
||||||
|
info: |
|
||||||
|
%AsyncFromSyncIteratorPrototype%.next ( value )
|
||||||
|
...
|
||||||
|
3. Let promiseCapability be ! NewPromiseCapability(%Promise%).
|
||||||
|
4. Let syncIteratorRecord be O.[[SyncIteratorRecord]].
|
||||||
|
5. If value is present, then
|
||||||
|
...
|
||||||
|
6. Else,
|
||||||
|
a. Let result be IteratorNext(syncIteratorRecord).
|
||||||
|
7. IfAbruptRejectPromise(result, promiseCapability).
|
||||||
|
8. Return ! AsyncFromSyncIteratorContinuation(result, promiseCapability, syncIteratorRecord, true).
|
||||||
|
|
||||||
|
AsyncFromSyncIteratorContinuation ( result, promiseCapability, syncIteratorRecord, closeOnRejection )
|
||||||
|
1. Let done be IteratorComplete(result).
|
||||||
|
2. IfAbruptRejectPromise(done, promiseCapability).
|
||||||
|
3. Let value be IteratorValue(result).
|
||||||
|
4. IfAbruptRejectPromise(value, promiseCapability).
|
||||||
|
5. Let valueWrapper be PromiseResolve(%Promise%, value).
|
||||||
|
6. If valueWrapper is an abrupt completion, done is false, and closeOnRejection is true, then
|
||||||
|
a. Set valueWrapper to IteratorClose(syncIteratorRecord, valueWrapper).
|
||||||
|
...
|
||||||
|
12. If done is true, or if closeOnRejection is false, then
|
||||||
|
...
|
||||||
|
13. Else,
|
||||||
|
a. Let closeIterator be a new Abstract Closure with parameters (error) that captures syncIteratorRecord and performs the following steps when called:
|
||||||
|
i. Return ? IteratorClose(syncIteratorRecord, ThrowCompletion(error)).
|
||||||
|
b. Let onRejected be CreateBuiltinFunction(closeIterator, 1, "", « »).
|
||||||
|
c. NOTE: onRejected is used to close the Iterator when the "value" property of an IteratorResult object it yields is a rejected promise.
|
||||||
|
14. Perform PerformPromiseThen(valueWrapper, onFulfilled, onRejected, promiseCapability).
|
||||||
|
15. Return promiseCapability.[[Promise]].
|
||||||
|
|
||||||
|
|
||||||
|
flags: [async]
|
||||||
|
features: [async-iteration]
|
||||||
|
includes: [asyncHelpers.js]
|
||||||
|
---*/
|
||||||
|
|
||||||
|
var returnCount = 0;
|
||||||
|
function Reject() {}
|
||||||
|
|
||||||
|
const syncIterator = {
|
||||||
|
[Symbol.iterator]() {
|
||||||
|
return {
|
||||||
|
next() {
|
||||||
|
return { value: Promise.reject(new Reject()), done: false };
|
||||||
|
},
|
||||||
|
return() {
|
||||||
|
returnCount += 1;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function* asyncIterator() {
|
||||||
|
yield* syncIterator;
|
||||||
|
}
|
||||||
|
|
||||||
|
asyncTest(async () => {
|
||||||
|
await assert.throwsAsync(Reject, async () => asyncIterator().next(), "Promise should be rejected");
|
||||||
|
assert.sameValue(returnCount, 1);
|
||||||
|
});
|
@ -0,0 +1,83 @@
|
|||||||
|
// Copyright (C) 2024 Igalia, S.L. All rights reserved.
|
||||||
|
// This code is governed by the BSD license found in the LICENSE file.
|
||||||
|
|
||||||
|
/*---
|
||||||
|
esid: sec-%asyncfromsynciteratorprototype%.throw
|
||||||
|
description: throw() will reject promise if resolving result promise abrupt completes.
|
||||||
|
info: |
|
||||||
|
%AsyncFromSyncIteratorPrototype%.throw ( value )
|
||||||
|
...
|
||||||
|
3. Let promiseCapability be ! NewPromiseCapability(%Promise%).
|
||||||
|
4. Let syncIteratorRecord be O.[[SyncIteratorRecord]].
|
||||||
|
5. Let syncIterator be syncIteratorRecord.[[Iterator]].
|
||||||
|
6. Let throw be GetMethod(syncIterator, "throw").
|
||||||
|
...
|
||||||
|
9. If value is present, then
|
||||||
|
...
|
||||||
|
10. Else,
|
||||||
|
a. Let result be Call(throw,syncIterator).
|
||||||
|
...
|
||||||
|
13. Return ! AsyncFromSyncIteratorContinuation(result, promiseCapability, syncIteratorRecord, true).
|
||||||
|
|
||||||
|
AsyncFromSyncIteratorContinuation ( result, promiseCapability, syncIteratorRecord, closeOnRejection )
|
||||||
|
1. Let done be IteratorComplete(result).
|
||||||
|
2. IfAbruptRejectPromise(done, promiseCapability).
|
||||||
|
3. Let value be IteratorValue(result).
|
||||||
|
4. IfAbruptRejectPromise(value, promiseCapability).
|
||||||
|
5. Let valueWrapper be PromiseResolve(%Promise%, value).
|
||||||
|
6. If valueWrapper is an abrupt completion, done is false, and closeOnRejection is true, then
|
||||||
|
a. Set valueWrapper to IteratorClose(syncIteratorRecord, valueWrapper).
|
||||||
|
...
|
||||||
|
12. If done is true, or if closeOnRejection is false, then
|
||||||
|
...
|
||||||
|
13. Else,
|
||||||
|
a. Let closeIterator be a new Abstract Closure with parameters (error) that captures syncIteratorRecord and performs the following steps when called:
|
||||||
|
i. Return ? IteratorClose(syncIteratorRecord, ThrowCompletion(error)).
|
||||||
|
b. Let onRejected be CreateBuiltinFunction(closeIterator, 1, "", « »).
|
||||||
|
c. NOTE: onRejected is used to close the Iterator when the "value" property of an IteratorResult object it yields is a rejected promise.
|
||||||
|
14. Perform PerformPromiseThen(valueWrapper, onFulfilled, onRejected, promiseCapability).
|
||||||
|
15. Return promiseCapability.[[Promise]].
|
||||||
|
|
||||||
|
flags: [async]
|
||||||
|
features: [async-iteration]
|
||||||
|
includes: [asyncHelpers.js]
|
||||||
|
---*/
|
||||||
|
|
||||||
|
var returnCount = 0;
|
||||||
|
function Reject() {}
|
||||||
|
|
||||||
|
var obj = {
|
||||||
|
[Symbol.iterator]() {
|
||||||
|
return {
|
||||||
|
next() {
|
||||||
|
return { value: 1, done: false };
|
||||||
|
},
|
||||||
|
throw() {
|
||||||
|
return {
|
||||||
|
value: Promise.reject(new Reject()),
|
||||||
|
done: false
|
||||||
|
};
|
||||||
|
},
|
||||||
|
return() {
|
||||||
|
returnCount += 1;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
async function* asyncg() {
|
||||||
|
return yield* obj;
|
||||||
|
}
|
||||||
|
|
||||||
|
let iter = asyncg();
|
||||||
|
|
||||||
|
asyncTest(async function () {
|
||||||
|
await assert.throwsAsync(Reject, async () => {
|
||||||
|
await iter.next();
|
||||||
|
return iter.throw();
|
||||||
|
}, "Promise should be rejected");
|
||||||
|
assert.sameValue(returnCount, 1);
|
||||||
|
const result = await iter.next();
|
||||||
|
assert(result.done, "the iterator is completed");
|
||||||
|
assert.sameValue(result.value, undefined, "value is undefined");
|
||||||
|
})
|
Loading…
x
Reference in New Issue
Block a user