766a7a28a9
Changed previous error message from: > Cannot read from mutable source during the current render without tearing. This is a bug in React. Please file an issue. To: > Cannot read from mutable source during the current render without tearing. This may be a bug in React. Please file an issue. Also added a DEV only warning about the unsafe side effect: > A mutable source was mutated while the %s component was rendering. This is not supported. Move any mutations into event handlers or effects. I think this is the best we can do without adding production overhead that we'd probably prefer to avoid. |
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| __tests__ | ||
| README.md | ||
| Types.js | ||
| codes.json | ||
| extract-errors.js | ||
| invertObject.js | ||
| transform-error-messages.js | ||
README.md
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.