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Update getDefaultJSExecutorFactory to load Hermes first and fallback to JSC #41914

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Summary:
If the user does not specify which engine they're using, we still default to loading JSC first and then attempting to load Hermes.
This has a small performance hit (as we attempt to load an existing library) + it prints an inactionable log for the user every time.

Changelog:
[Android] [Fixed] - Update getDefaultJSExecutorFactory to load Hermes first and fallback to JSC

Differential Revision: D52080545

@facebook-github-bot facebook-github-bot added CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. p: Facebook Partner: Facebook Partner labels Dec 12, 2023
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This pull request was exported from Phabricator. Differential Revision: D52080545

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analysis-bot commented Dec 12, 2023

Platform Engine Arch Size (bytes) Diff
android hermes arm64-v8a 16,516,604 -5
android hermes armeabi-v7a n/a --
android hermes x86 n/a --
android hermes x86_64 n/a --
android jsc arm64-v8a 19,891,367 -7
android jsc armeabi-v7a n/a --
android jsc x86 n/a --
android jsc x86_64 n/a --

Base commit: f676f42
Branch: main

…to JSC (facebook#41914)

Summary:

If the user does not specify which engine they're using, we still default to loading JSC first and then attempting to load Hermes.
This has a small performance hit (as we attempt to load an existing library) + it prints an inactionable log for the user every time.

Changelog:
[Android] [Fixed] - Update getDefaultJSExecutorFactory to load Hermes first and fallback to JSC

Reviewed By: luluwu2032

Differential Revision: D52080545
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This pull request was exported from Phabricator. Differential Revision: D52080545

@facebook-github-bot facebook-github-bot added the Merged This PR has been merged. label Dec 13, 2023
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This pull request has been merged in 70a757f.

Othinn pushed a commit to Othinn/react-native that referenced this pull request Jan 9, 2024
…to JSC (facebook#41914)

Summary:
Pull Request resolved: facebook#41914

If the user does not specify which engine they're using, we still default to loading JSC first and then attempting to load Hermes.
This has a small performance hit (as we attempt to load an existing library) + it prints an inactionable log for the user every time.

Changelog:
[Android] [Fixed] - Update getDefaultJSExecutorFactory to load Hermes first and fallback to JSC

Reviewed By: luluwu2032

Differential Revision: D52080545

fbshipit-source-id: 95f37304d713da7d7079eabbd2dfdf230d29a1b9
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3 participants