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* Don't invoke listeners on parent of dehydrated event target * Move Suspense boundary check to getClosestInstanceFromNode Now getClosestInstanceFromNode can return either a host component, host text component or suspense component when the suspense component is dehydrated. We then use that to ignore events on a suspense component. * Attach the HostRoot fiber to the DOM container This lets us detect if an event happens on this root's subtree before it has rendered something. * Add todo The approach of checking isFiberMounted answers if we might be in an in-progress hydration but it doesn't answer which root or boundary might be in-progress so we don't know what to wait for. This needs some refactoring. * Refactor isFiberMountedImpl to getNearestMountedFiber We'll need the nearest boundary for event replaying so this prepares for that. This surfaced an issue that we attach Hydrating tag on the root but normally this (and Placement) is attached on the child. This surfaced an issue that this can lead to both Placement and Hydrating effects which is not supported so we need to ensure that we only ever use one or the other. * Add todo for bug I spotted * Cache tags * Check the ContainerInstanceKey before the InstanceKey The container is inside the instance, so we must find it before the instance, since otherwise we'll miss it.
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.