This delays the type check until the point when the engine will have to
perform a type check regardless.
Because the error is now thrown during the commit phase rather than
when the callback is originally scheduled, we warn in DEV when
scheduling so it's easier to track down.
Flow maybe types accept both null and undefined. When the final
parameter of a function accepts a maybe type, passing nothing
(undefined) successfully typechecks, which can lead to bugs if the
omission is accidental. Being forced to pass null is harder to screw up.
Explicit null checks are also faster.
Previously, calls to validateCallback() with a null callback value resulted in runtime errors if a certain transform was not applied prior to running. This commit wraps the invariant() with the condition check so as to avoid calling formatUnexpectedArgument() unless necessary. It also replaces the truthy/falsy callback check with an explicit check for improved performance.
* 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
These mocks are things we expect to be available in the React Native
environment. I'd like to move them out of the renderer folder so that we
can sync that folder to React Native as is without overriding its mocks.
I motivate by the fact that they're not really part of the renderer code
itself. I leave the ReactNative mock since that is in fact part of the
renderer.
* Fixed ReactNativeFiber event system regression introduced in b354db2
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
Submitted this internally already.
Needed because people import this file directly and they might not have the renderer inject the findNodeHandle handler yet.
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 be71f76ed8.
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.
It is strange to get a handle on the Fiber since it is one of possibly two
root Fibers. The correct way to get the current Fiber is through the
root.current.
I exposed the Fiber originally because I thought we might use it for
Portals but we went with a different approach. So we don't need this.
* Add note about refs on stateless components
* Move info about refs in the stateless components to the main section
* Simplification of the part about refs and functional components
* Tweaks
* Move sections around
* Oops
* Rearrange more sections
* Add onToggle event to details tag
Fixes#8761
* Map onToggle event on ReactDOMFiberComponent
* Tweak doc
* Trap events on setInitialProperties for details tag