commit | 60999b0d9da8b6d0e7e4f7023837b71441b95646 | [log] [tgz] |
---|---|---|
author | Dominic Farolino <dom@chromium.org> | Mon Nov 20 15:52:15 2023 |
committer | Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> | Mon Nov 20 16:10:40 2023 |
tree | e7db259987c12f3fa32e5e6988cc1f7f30134922 | |
parent | 52001ef611c71981b5d685e294482e7298a4f06f [diff] |
Observable: Implement signal aborting to prep for teardown Before this CL, `Subscriber#signal` is a dependent signal based exclusively on `Observer#signal`, if it exists. This means that while calling `Subscriber#complete()` or `Subscriber#error()` would "close" the subscription (making `.active` false), but would not abort its signal. After this CL, `Subscriber#signal` is a dependent signal based on two source signals: 1. `Observer#signal` 2. A new signal that gets aborted when `complete()` and `error()` are called In response to `Subscriber::signal_` being aborted, the abort algorithm runs which just calls `Subscriber::CloseSubscription()` (which might have already been called by this point, if we aborted due to a `complete()` or `error()` call. This CL also properly handles the case where `Observer#signal` is already aborted. Previously, we would not synchronously close down the subscription, but this CL ensures that we do (see the deleted test expectations). This CL is mostly doing preparation for work the `addTeardown()` method which is used to register teardown callbacks which run as `Subscriber#signal` gets aborted. R=masonf@chromium.org Bug: 1485981 Change-Id: Ib01eee42a99b8c778e873d38bb76a0c88ca7cfd8 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5038395 Reviewed-by: Mason Freed <masonf@chromium.org> Commit-Queue: Dominic Farolino <dom@chromium.org> Reviewed-by: Scott Haseley <shaseley@chromium.org> Cr-Commit-Position: refs/heads/main@{#1226827}
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