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RN: Optimize StyleSheet.compose #44274

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Summary:
Changes two important aspects of StyleSheet.compose:

  • Extract it from StyleSheet so that it can be imported from other internal modules without incurring circular dependencies. (Surprisingly, StyleSheet has a lot of dependencies.)
  • Avoid a redundant style1 != null check.

Changelog:
[General][Changed] - Optimized performance of StyleSheet.compose

Reviewed By: sammy-SC

Differential Revision: D56621407

@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 Apr 26, 2024
Summary:
Changes two important aspects of `StyleSheet.compose`:

- Extract it from `StyleSheet` so that it can be imported from other internal modules without incurring circular dependencies. (Surprisingly, `StyleSheet` has a lot of dependencies.)
- Avoid a redundant `style1 != null` check.

Changelog:
[General][Changed] - Optimized performance of `StyleSheet.compose`

Reviewed By: sammy-SC

Differential Revision: D56621407
@analysis-bot
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Platform Engine Arch Size (bytes) Diff
android hermes arm64-v8a 19,460,147 +44
android hermes armeabi-v7a n/a --
android hermes x86 n/a --
android hermes x86_64 n/a --
android jsc arm64-v8a 22,833,652 +30
android jsc armeabi-v7a n/a --
android jsc x86 n/a --
android jsc x86_64 n/a --

Base commit: be06fd4
Branch: main

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