> This PR adds a test (initially failing) for this case along with a fix for stack and fiber. The stack fix was copied from a Diff submitted by @sema. The fiber fix just required us to stop leaking properties for unmounted views.
> Longer term we may want to explicitly invoke a release event listener for a responder just before unmounting it. This PR does not do that.
ReactStatelessComponent-test.js fails due to warnings not showing up when functional components mount or update. This PR ports the existing warnings from stack and re-applies them to fiber functional components and attempts to re-use some logic in ReactFiberContext that currently exists for showing warnings when dealing with class components.
* Add toTree() method to stack and fiber TestRenderer
* Address PR feedback
* Refactor TestRenderer to use correct root
* Rebase off master and fix root node references
* Add flow types
* Add test for null rendering components
* Remove last remaining lint error
* Add missing test
* Fixed ReactNativeFiber event system regression introduced in 71fb1e6
Also added test coverage to ReactNativeEvents-test for Fiber
* ReactNative tests now run against fiber renderer when env flag set
Updated the test-framework-setup file so that record-tests runs native tests against ReactNativeFiber. ReactComponentTreeHook native tests all now fail but that's expected.
* Avoid calling setChildren() if no children
We have a bunch of tests that are meant to test generic React behavior.
However, we've written the tests against the DOM renderer. This moves
tests that depend on ReactDOM or ReactTestUtils out of the shared repo.
This will let us sync the shared repo directly to environments that don't
support running these tests. Such as React Native.
* Revert "Revert "Warn if PropType function is called manually (#7132)""
This reverts commit be71f76ed8b7dbad25e3519455605252d3daf683.
In other words, now we again have the warning if you attempt to call PropTypes manually.
It was removed in #8066 but we shouldn't have done this since we still want to avoid people accidentally calling them in production (and even more so since now it would throw).
Fixes#8080.
* Pass secret in ReactControlledValuePropTypes
* Record tests
The entries of a map are a two-element array of [key, value], which
React will treat as fragments with children. This is unlikely to ever
be the intended behavior, so we warn.
There are a few different issues:
* Updates result in unnecessary duplicate placements because it can't find the current fiber for continuations.
* When run together, coroutine update and unmounting tests appear to lock down in an infinite loop. They don't freeze in isolation.
I don't have a solution for this but just leaving it for future fixes.
It's not just events that read the current props. Controlled components
do as well. Since we're no longer updating the Fiber pointer during updates
we have to instead read from the node props to get the current props.
Since this method is no longer just used for events I renamed it.
* Allow renderers to return an update payload in prepareUpdate
This then gets stored on updateQueue so that the renderer doesn't need to
think about how to store this.
It then gets passed into commitUpdate during the commit phase.
This allows renderers to do the diffing during the time sliced path,
allocate a queue for changes and do only the absolute minimal work to
apply those changes in the commit phase.
If refs update we still schedule and update.
* Hack around the listener problem
* Diff ReactDOMFiber properties in prepareUpdate
We now take advantage of the new capability to diff properties early.
We do this by generating an update payload in the form of an array with
each property name and value that we're about to update.
* Add todo for handling wasCustomComponentTag
* Always force an update to wrapper components
Wrapper components have custom logic that gets applied at the commit phase
so we always need to ensure that we schedule an update for them.
* Remove rootContainerInstance from commitMount
No use case yet and I removed it from commitUpdate earlier.
* Use update signal object in test renderer
* Incorporate 8652 into new algorithm
* Fix comment
* Add failing test for flipping event handlers
This illustrates the problem that happens if we store a pointer to the
Fiber and then choose not to update that pointer when no properties change.
That causes an old Fiber to be retained on the DOM node. Then that Fiber
can be reused by the pooling mechanism which then will mutate that Fiber
with new event handlers, which makes them active before commit.
* Store current props in the RN instance cache and on the DOM node
This represents the current set of event listeners. By not relying on the
Fiber, it allows us to avoid doing any effects in the commit phase when
nothing changes.
This is a bit ugly. Not super happy how this all came together.
* Add a test for rendering SVG into a non-React SVG tree
It is failing in Fiber.
* Add a test for rendering HTML into non-React foreignObject
It happens to pass in Fiber.
* Determine root namespace by container namespace, not just tag
A tag alone is not enough to determine the tree namespace.
* Skip the test that exhibits jsdom bug in non-createElement mode
jsdom doesn't give HTML namespace to foreignObject.innerHTML children.
This problem doesn't exist in the browsers.
https://github.com/facebook/react/pull/8638#issuecomment-269349642
We will skip this test in non-createElement mode considering
that non-createElement mounting is effectively dead code now anyway.
