Enable warning for defaultProps on function components for everyone #25699
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There's a case, we maybe don't need to warn about. Most defaultProps are deprecated, except on classes. Later we'll move the resolution of defaultProps on classes to deeper in the reconciliation than in createElement. This means that you can read |
These can be tested against the builds now.
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Are we not concerned with disabling these feature flags for certain forks in the future? Wouldn't that cause failing tests since they don't conditionally assert on warnings depending on the feature flag values?
If we are, I can follow-up with making sure the assertions check the feature flag values first.
| it('should not warn when owner and self are the same for string refs', () => { | ||
| ReactFeatureFlags.warnAboutStringRefs = false; | ||
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| it('should warn when owner and self are the same for string refs', () => { |
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As far as I can tell the added warning is not because of owner and self are the same but simply because string refs are used.
It should still "not warn if owner and self are the same for string refs", right?
I think the test description is fine to keep while also not doing the ReactFeatureFlags.warnAboutStringRefs = false;.
toErrorDev should fail the test if we would suddenly add a warning "when owner and self are the same for string refs" because that would be a different warning than the one we're expecting now?
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The important thing is that it warns since we're about to change behavior. Doesn't really matter all that much for what reason it warns.
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Not too worried about disabling these since they're going into the next stable and for Meta they're silenced secondarily in a different layer anyway. So I figured we'd just remove the flags as we do a pass over all the ones that we want always on. |
…acebook#25699) This also fixes a gap where were weren't warning on memo components.
…25699) This also fixes a gap where were weren't warning on memo components.
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I imagine that if defaultProps support is going to be dropped in the next React major release, it is to enable new features. Is there any discussion about this somewhere? |
@icswillems See reactjs/rfcs#107 |
Summary: Three problems popped up during the sync: - facebook/react@07f46ecf2 breaks breaks tests - facebook/react@6fb8133ed breaks fbsource tests. I added a workaround and created a test for the team that owns the test. - https://fb.workplace.com/groups/flowlang/permalink/1198137807458547/ enables local type interference in fbsource but not in github React repo and some code breaks. Addressed in facebook/react#26064 This sync includes the following changes: - **[17f6912a4](facebook/react@17f6912a4 )**: Add flow types to ReactFiberHooks ([#25752](facebook/react#25752)) //<Samuel Susla>// - **[f101c2d0d](facebook/react@f101c2d0d )**: Remove Reconciler fork (2/2) ([#25775](facebook/react#25775)) //<Jan Kassens>// - **[420f0b7fa](facebook/react@420f0b7fa )**: Remove Reconciler fork (1/2) ([#25774](facebook/react#25774)) //<Jan Kassens>// - **[3ba7add60](facebook/react@3ba7add60 )**: Allow async blocks in `to(Error|Warn)Dev` ([#25338](facebook/react#25338)) //<Sebastian Silbermann>// - **[fa11bd6ec](facebook/react@fa11bd6ec )**: [ServerRenderer] Add option to send instructions as data attributes ([#25437](facebook/react#25437)) //<mofeiZ>// - **[e98225485](facebook/react@e98225485 )**: Add ref cleanup function ([#25686](facebook/react#25686)) //<Samuel Susla>// - **[15557fa67](facebook/react@15557fa67 )**: [Fix] properly track `useId` use in StrictMode in development ([#25713](facebook/react#25713)) //<Josh Story>// - **[8a23def32](facebook/react@8a23def32 )**: Resubmit Add HydrationSyncLane ([#25711](facebook/react#25711)) //<Tianyu Yao>// - **[2655c9354](facebook/react@2655c9354 )**: Fizz Browser: fix precomputed chunk being cleared on Node 18 ([#25645](facebook/react#25645)) //<Jimmy Lai>// - **[c08d8b804](facebook/react@c08d8b804 )**: Revert "Add SyncHydrationLane" ([#25708](facebook/react#25708)) //<Tianyu Yao>// - **[56ffca8b9](facebook/react@56ffca8b9 )**: Add Bun streaming server renderer ([#25597](facebook/react#25597)) //<Colin McDonnell>// - **[f31005d6a](facebook/react@f31005d6a )**: Add SyncHydrationLane ([#25698](facebook/react#25698)) //<Tianyu Yao>// - **[f284d9faf](facebook/react@f284d9faf )**: Track ThenableState alongside other hooks //<Andrew Clark>// - **[6b4c0314e](facebook/react@6b4c0314e )**: Check thenable instead of thenableState //<Andrew Clark>// - **[33e3d2878](facebook/react@33e3d2878 )**: Reuse hooks when replaying a suspended component //<Andrew Clark>// - **[4387d752d](facebook/react@4387d752d )**: Allow more hooks to be added when replaying mount //<Andrew Clark>// - **[5eb78d0a0](facebook/react@5eb78d0a0 )**: Pass ThenableState to replaySuspendedUnitOfWork //<Andrew Clark>// - **[4a2d86bdd](facebook/react@4a2d86bdd )**: Don't reset work loop until stack is unwound //<Andrew Clark>// - **[9dfbd9fa9](facebook/react@9dfbd9fa9 )**: use: Don't suspend if there are pending updates //<Andrew Clark>// - **[44c4e6f4d](facebook/react@44c4e6f4d )**: Force unwind work loop during selective hydration ([#25695](facebook/react#25695)) //<Andrew Clark>// - **[7b17f7bbf](facebook/react@7b17f7bbf )**: Enable warning for defaultProps on function components for everyone ([#25699](facebook/react#25699)) //<Sebastian Markbåge>// - **[6fb8133ed](facebook/react@6fb8133ed )**: Turn on string ref deprecation warning for everybody (not codemoddable) ([#25383](facebook/react#25383)) //<Sebastian Silbermann>// - **[07f46ecf2](facebook/react@07f46ecf2 )**: Turn on key spread warning in jsx-runtime for everyone ([#25697](facebook/react#25697)) //<Sebastian Markbåge>// - **[d65b88d03](facebook/react@d65b88d03 )**: Eagerly initialize an mutable object for instance.refs ([#25696](facebook/react#25696)) //<Sebastian Markbåge>// - **[c343f8025](facebook/react@c343f8025 )**: [react-float] feature detect getRootNode ([#25689](facebook/react#25689)) //<Jan Kassens>// - **[e1dd0a2f5](facebook/react@e1dd0a2f5 )**: Remove recoverable error when a sync update flows into a dehydrated boundary ([#25692](facebook/react#25692)) //<Sebastian Markbåge>// - **[c54e3541b](facebook/react@c54e3541b )**: [DevTools] bug fix for Hydrating fibers ([#25663](facebook/react#25663)) //<Mengdi Chen>// Changelog: [General][Changed] - React Native sync for revisions d1e35c7...17f6912 jest_e2e[run_all_tests] Reviewed By: makovkastar Differential Revision: D42804802 fbshipit-source-id: 6a9f00724cc73378025bbd04edb2d17760a87280
This also fixes a gap where were weren't warning on memo components.
Part of reactjs/rfcs#107: Deprecate
defaultPropson function components