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* Move flushSync warning to React DOM When you call in `flushSync` from an effect, React fires a warning. I've moved the implementation of this warning out of the reconciler and into React DOM. `flushSync` is a renderer API, not an isomorphic API, because it has behavior that was designed specifically for the constraints of React DOM. The equivalent API in a different renderer may not be the same. For example, React Native has a different threading model than the browser, so it might not make sense to expose a `flushSync` API to the JavaScript thread. * Make root.unmount() synchronous When you unmount a root, the internal state that React stores on the DOM node is immediately cleared. So, we should also synchronously delete the React tree. You should be able to create a new root using the same container. |
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| __tests__ | ||
| codes.json | ||
| extract-errors.js | ||
| invertObject.js | ||
| README.md | ||
| transform-error-messages.js | ||
| Types.js | ||
The error code system substitutes React's error messages with error IDs to provide a better debugging support in production. Check out the blog post here.
codes.jsoncontains the mapping from IDs to error messages. This file is generated by the Gulp plugin and is used by both the Babel plugin and the error decoder page in our documentation. This file is append-only, which means an existing code in the file will never be changed/removed.extract-errors.jsis an node script that traverses our codebase and updatescodes.json. You can test it by runningyarn extract-errors.transform-error-messagesis a Babel pass that rewrites error messages to IDs for a production (minified) build.