* Updated suspense fixture to use new interaction-tracking API
* Integrated Profiler API with interaction-tracking API (and added tests)
* Pass interaction Set (rather than Array) to Profiler onRender callback
* Removed some :any casts for enableInteractionTracking fields in FiberRoot type
* Refactored threadID calculation into a helper method
* Errors thrown by interaction tracking hooks use unhandledError to rethrow more safely.
Reverted try/finally change to ReactTestRendererScheduling
* Added a $FlowFixMe above the FiberRoot :any cast
* Reduce overhead from calling work-started hook
* Remove interaction-tracking wrap() references from unwind work in favor of managing suspense/interaction continuations in the scheduler
* Moved the logic for calling work-started hook from performWorkOnRoot() to renderRoot()
* Add interaction-tracking to bundle externals. Set feature flag to __PROFILE__
* Renamed the freezeInteractionCount flag and replaced one use-case with a method param
* let -> const
* Updated suspense fixture to handle recent API changes
* Add a failing test for deferredUpdates not being respected
* Don't consider deferred updates interactive
* Remove now-unnecessary setTimeout hack in the fixture
* Remove unstable_deferredUpdates
* Remove addEventListener check in isEventSupported
All browsers we support also support addEventListener, so this check is
unncessary
* Remove capture argument from isEventSupported
There's no good reason for this to be an object. This refactors it so
that we just use three variables instead. We can avoid the property reads/writes and also minify better, since property names don't get mangled but variables do.
* Do not toLowerCase lists of lowercase words
* Add notes about downcasing to DOMProperty.js
* Use consistent comment breakout
* Make toLowerCase more obvious
* Removed enableInteractionTrackingObserver as a separate flag; only enableInteractionTracking is used now
* Added interaction-tracking/subscriptions bundle and split tests
* Added multi-subscriber support
* Moved subscriptions behind feature flag
* Fixed bug with wrap() parameters and added test
* Replaced wrap arrow function
* Replace some namespace imports
* Simplify the controlled component injection
* Simplify the batching injection
* Simplify the component tree injection
* Add a regression test for 12643#issuecomment-413727104
* Don't diff memoized host components
* Add regression tests for noop renderer
* No early return
* Strengthen the test for host siblings
* Flow types
Lazily starts loading a component the first time it's rendered. The
implementation is fairly simple and could be left to userspace, but since
this is an important use case, there's value in standardization.
* Accept promise as element type
On the initial render, the element will suspend as if a promise were
thrown from inside the body of the unresolved component. Siblings should
continue rendering and if the parent is a Placeholder, the promise
should be captured by that Placeholder.
When the promise resolves, rendering resumes. If the resolved value
has a `default` property, it is assumed to be the default export of
an ES module, and we use that as the component type. If it does not have
a `default` property, we use the resolved value itself.
The resolved value is stored as an expando on the promise/thenable.
* Use special types of work for lazy components
Because reconciliation is a hot path, this adds ClassComponentLazy,
FunctionalComponentLazy, and ForwardRefLazy as special types of work.
The other types are not supported, but wouldn't be placed into a
separate module regardless.
* Resolve defaultProps for lazy types
* Remove some calls to isContextProvider
isContextProvider checks the fiber tag, but it's typically called after
we've already refined the type of work. We should get rid of it. I
removed some of them in the previous commit, and deleted a few more
in this one. I left a few behind because the remaining ones would
require additional refactoring that feels outside the scope of this PR.
* Remove getLazyComponentTypeIfResolved
* Return baseProps instead of null
The caller compares the result to baseProps to see if anything changed.
* Avoid redundant checks by inlining getFiberTagFromObjectType
* Move tag resolution to ReactFiber module
* Pass next props to update* functions
We should do this with all types of work in the future.
* Refine component type before pushing/popping context
Removes unnecessary checks.
* Replace all occurrences of _reactResult with helper
* Move shared thenable logic to `shared` package
* Check type of wrapper object before resolving to `default` export
* Return resolved tag instead of reassigning
* fix: do not reconcile children that are iterable functions
* fix: remove fit
* Refactor comparison to exclude anything that isnt an object
* Remove redundant undefined check