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408d055a3b
Adds Fragment Ref support to RN through the Fabric config, starting with `observeUsing`/`unobserveUsing`. This is mostly a copy from the implementation on DOM, and some of it can likely be shared in the future but keeping it separate for now and we can refactor as we add more features. Added a basic test with Fabric, but testing specific methods requires so much mocking that it doesn't seem valuable here. I built Fabric and ran on the Catalyst app internally to test with intersection observers end to end. |
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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. It works by crawling the build artifacts directory, so you need to have either run the build script or downloaded pre-built artifacts (e.g. withyarn download build). It works with partial builds, too.transform-error-messagesis a Babel pass that rewrites error messages to IDs for a production (minified) build.