[Playground Bug]: Unexpected token, expected "{"

[gkiely]

What kind of issue is this?

• React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
• babel-plugin-react-compiler (build issue installing or using the Babel plugin)
• eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
• react-compiler-healthcheck (build issue installing or using the healthcheck script)
• Playground issue

Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAejQAgPIAcEB2mcEBkANgpgIYEAmmUBJAti4QC4A6BGxpYDpgCiMGAEZMAXkwAKAJTSAfJgA8dAJYA3TGiUBuHnxJkhomACZpcxVJWz123UvmHeWE4JFiAzNcc6ejxGWAAqABYaYJgA7hAwANbRAGYaBAgh-KaYAMLWCsqYwJmYmDAIHLBEAc6ZAL4gdUA

Repro steps

Any component created without curly braces will create an error in the console no compiler output is shown.

See playground link.

How often does this bug happen?

Every time

What version of React are you using?

react@rc

What version of React Compiler are you using?

19.0.0-beta-8a03594-20241020