[Suggestion]: Document unsupported syntax in React Compiler (e.g. inside `try/catch`)

[gmoniava]

Summary

Document unsupported syntax in React Compiler (e.g. inside try/catch)

Page

https://react.dev/learn/react-compiler

Details

React Compiler silently skips components it can't compile, which is intentional (panicThreshold: 'none'). But the docs don't say which patterns trigger a skip, so developers can't tell when a component isn't being optimized.

A write up reports that these patterns inside try/catch prevent compilation:

• conditionals (if/else)
• ternaries, optional chaining and ??
• throw

The compiler's own error confirms at least one of these: Todo: Support value blocks (conditional, logical, optional chaining, etc) within a try/catch statement.

These are common in async code (fetch, then check response.ok), so developers may be affected without knowing.

Request:

1. Add a list of currently unsupported syntax patterns