[pull] main from facebook:main #295
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[sourcemap-codec](https://www.npmjs.com/package/sourcemap-codec) (deprecated) -> [@jridgewell/sourcemap-codec](https://www.npmjs.com/package/@jridgewell/sourcemap-codec) Validated that symbolication still works.
This helper weirdly doesn't include the sync lane. Everywhere we use it we have to check the sync lane separately. We can simplify things by simply including the sync lane. This fixes a lack of optimization because we should not check the store consistency for a `flushSync` render. https://github.com/facebook/react/blob/d91d28c8ba6fe7c96e651f82fc47c9d5481bf5f9/packages/react-reconciler/src/ReactFiberHooks.js#L1691-L1693
…ing (#34548) Stacked on #34546. Same as #34538 but for gestures. Includes various fixes. This shows how it ends with a Transition when you release in the committed state. Note how the Animation of the Gesture continues until the Transition is done so that the handoff is seamless. <img width="853" height="134" alt="Screenshot 2025-09-20 at 7 37 29 PM" src="https://github.com/user-attachments/assets/6192a033-4bec-43b9-884b-77e3a6f00da6" />
@eps1lon flagged this case. Inlined useCallback has an extra LoadLocal indirection which caused us not to add a name. While I was there I added some extra checks to make sure we don't generate names for a given node twice (just in case).
We previously always generated import statements for any modules that
had to be required, notably the `import {c} from
'react/compiler-runtime'` for the memo cache function. However, this
obviously doesn't work when the source is using commonjs. Now we check
the sourceType of the module and generate require() statements if the
source type is 'script'.
I initially explored using
https://babeljs.io/docs/babel-helper-module-imports, but the API design
was unfortunately not flexible enough for our use-case. Specifically,
our pipeline is as follows:
* Compile individual functions. Generate candidate imports,
pre-allocating the local names for those imports.
* If the file is compiled successfully, actually add the imports to the
program.
Ie we need to pre-allocate identifier names for the imports before we
add them to the program — but that isn't supported by
babel-helper-module-imports. So instead we generate our own require()
calls if the sourceType is script.
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