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perf(platform-browser): resolve memory leak when using animations with shadow DOM #47903

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AnimationRendererFactory maintains a map between a renderer delegate and the animations renderer it corresponds to, but the renderers are never removed from the map. This leads to memory leaks when used with the ShadowDom view encapsulation, because the specific renderer keeps a references to its shadow root which in turn references all the elements in the view.

These changes resolve the leak by clearing the reference when the animations renderer is destroyed.

Fixes #47892.

…h shadow DOM

`AnimationRendererFactory` maintains a map between a renderer delegate and the animations renderer it corresponds to, but the renderers are never removed from the map. This leads to memory leaks when used with the `ShadowDom` view encapsulation, because the specific renderer keeps a references to its shadow root which in turn references all the elements in the view.

These changes resolve the leak by clearing the reference when the animations renderer is destroyed.

Fixes angular#47892.
@crisbeto crisbeto added area: animations action: review The PR is still awaiting reviews from at least one requested reviewer target: patch This PR is targeted for the next patch release labels Oct 28, 2022
@ngbot ngbot bot modified the milestone: Backlog Oct 28, 2022
@crisbeto crisbeto marked this pull request as ready for review October 28, 2022 09:49
@crisbeto crisbeto added action: merge The PR is ready for merge by the caretaker and removed action: review The PR is still awaiting reviews from at least one requested reviewer labels Oct 30, 2022
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alxhub commented Nov 1, 2022

This PR was merged into the repository by commit 925dd73.

alxhub pushed a commit that referenced this pull request Nov 1, 2022
…h shadow DOM (#47903)

`AnimationRendererFactory` maintains a map between a renderer delegate and the animations renderer it corresponds to, but the renderers are never removed from the map. This leads to memory leaks when used with the `ShadowDom` view encapsulation, because the specific renderer keeps a references to its shadow root which in turn references all the elements in the view.

These changes resolve the leak by clearing the reference when the animations renderer is destroyed.

Fixes #47892.

PR Close #47903
alxhub pushed a commit that referenced this pull request Nov 1, 2022
…h shadow DOM (#47903)

`AnimationRendererFactory` maintains a map between a renderer delegate and the animations renderer it corresponds to, but the renderers are never removed from the map. This leads to memory leaks when used with the `ShadowDom` view encapsulation, because the specific renderer keeps a references to its shadow root which in turn references all the elements in the view.

These changes resolve the leak by clearing the reference when the animations renderer is destroyed.

Fixes #47892.

PR Close #47903
@alxhub alxhub closed this in 925dd73 Nov 1, 2022
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this pull request Nov 4, 2022
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@angular/animations](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fanimations/14.2.8/14.2.9) |
| [@angular/common](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fcommon/14.2.8/14.2.9) |
| [@angular/compiler](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fcompiler/14.2.8/14.2.9) |
| [@angular/compiler-cli](https://github.com/angular/angular/tree/main/packages/compiler-cli) ([source](https://github.com/angular/angular)) | devDependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fcompiler-cli/14.2.8/14.2.9) |
| [@angular/core](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fcore/14.2.8/14.2.9) |
| [@angular/forms](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fforms/14.2.8/14.2.9) |
| [@angular/platform-browser](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fplatform-browser/14.2.8/14.2.9) |
| [@angular/platform-browser-dynamic](https://github.com/angular/angular) | dependencies | patch | [`14.2.8` -> `14.2.9`](https://renovatebot.com/diffs/npm/@angular%2fplatform-browser-dynamic/14.2.8/14.2.9) |

---

### Release Notes

<details>
<summary>angular/angular</summary>

### [`v14.2.9`](https://github.com/angular/angular/blob/HEAD/CHANGELOG.md#&#8203;1429-2022-11-03)

[Compare Source](angular/angular@14.2.8...14.2.9)

##### platform-browser

| Commit | Type | Description |
| -- | -- | -- |
| [92d28bdd99](angular/angular@92d28bd) | perf | resolve memory leak when using animations with shadow DOM ([#&#8203;47903](angular/angular#47903)) |

##### platform-server

| Commit | Type | Description |
| -- | -- | -- |
| [d2d9bbf5ce](angular/angular@d2d9bbf) | fix | call `onSerialize` when state is empty ([#&#8203;47888](angular/angular#47888)) |

#### Special Thanks

Alan Agius, Kristiyan Kostadinov, Virginia Dooley and mgechev

<!-- CHANGELOG SPLIT MARKER -->

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMy4yIiwidXBkYXRlZEluVmVyIjoiMzQuMTcuMSJ9-->

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1626
Reviewed-by: Epsilon_02 <epsilon_02@noreply.codeberg.org>
Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
nouraellm pushed a commit to nouraellm/angular that referenced this pull request Nov 6, 2022
…h shadow DOM (angular#47903)

`AnimationRendererFactory` maintains a map between a renderer delegate and the animations renderer it corresponds to, but the renderers are never removed from the map. This leads to memory leaks when used with the `ShadowDom` view encapsulation, because the specific renderer keeps a references to its shadow root which in turn references all the elements in the view.

These changes resolve the leak by clearing the reference when the animations renderer is destroyed.

Fixes angular#47892.

PR Close angular#47903
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trekladyone pushed a commit to trekladyone/angular that referenced this pull request Feb 1, 2023
…h shadow DOM (angular#47903)

`AnimationRendererFactory` maintains a map between a renderer delegate and the animations renderer it corresponds to, but the renderers are never removed from the map. This leads to memory leaks when used with the `ShadowDom` view encapsulation, because the specific renderer keeps a references to its shadow root which in turn references all the elements in the view.

These changes resolve the leak by clearing the reference when the animations renderer is destroyed.

Fixes angular#47892.

PR Close angular#47903
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Components not being garbage collected by browser causing major memory leaks
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