With this CL d8 exits with an error code if there is an unhandled
promise rejection, e.g. due tue a failed assertion in a promise. Up
until now these assertions were just ignored.
Bug: v8:10556
Change-Id: I25f20e4be45a2de130562deb15f6a144f0ac976f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2238569
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68503}
In the PerformPromise{All, Race, AllSettled} operations, the resolve
property of the constructor is looked up only once.
In the implementation, for the fast path, where the constructor's
resolve property is untainted, the resolve function is set to undefined.
Since undefined can't be a valid value for the resolve function,
we can switch on it (in CallResolve) to directly call the PromiseResolve
builtin. If the resolve property is tainted, we do an observable property
lookup, save this value, and call this property later (in CallResolve).
I ran this CL against the test262 tests locally and they all pass:
https://github.com/tc39/test262/pull/2131
Spec:
- https://github.com/tc39/ecma262/pull/1506
- https://github.com/tc39/proposal-promise-allSettled/pull/40
Bug: v8:9152
Change-Id: Icb36a90b5a244a67a729611c7b3315d2c29de6e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1574705
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60957}
