Add RCTRenderingPerf to performance docs #13902

teameh · 2017-05-10T18:34:36Z

Issue #12163 shows the docs on profiling are not up to date. Here's a quick fix to at least have something in the docs that works for the latest version of React Native.

Feel free to change / close this PR as long as the issue is addressed.

teameh · 2017-05-10T20:31:59Z

Both CI fails seem unrelated to these doc changes

hramos · 2017-05-16T20:04:56Z

docs/Performance.md

+You can also use `RCTRenderingPerf.js` to get insights into where React is spending time when rendering your components. Its behaviour is similar to that of react's [`react-addons-perf`](https://facebook.github.io/react/docs/perf.html)
+
+```js
+import PrefMonitor from 'react-native/Libraries/Performance/RCTRenderingPerf';


Shouldn't this be PerfMonitor?

Haha now way... copied it from a snippet from #12163 and did not pay attention. Fixed.

kelset · 2017-05-31T16:26:35Z

While investigating how to do performance benchmark I ended up trying to use PerfMonitor thanks to your comment here and the commits in this PR.

But this tool is not the same as ReactPerf, am I wrong?
Because via this comment I figure out how to use the ReactPerf tool, and they return slightly different results.

So, given that both are "usable" in RN (version 0.44 in my case), which one should be used? Because with this commit of yours you "remove" using ReactPerf from the doc, which can be used, and I'd really like to understand if they are different or not.

teameh · 2017-07-26T08:08:43Z

I removed it because it was broken. See #12163. If it's fixed then this PR can be closed. Otherwise I would merge this one, at least until it's fixed.

javiercr · 2017-08-03T11:43:40Z

RCTRenderingPerf has been removed on this commit, so I guess this PR cannot be merged anymore.

Is there any other built-in alternative to measure performance right now? Systrace is also currently broken.

kelset · 2017-08-03T12:07:01Z

So is v0.48 that won't have PerfMonitor anymore - I agree this should be closed then.

Would be nice to have a similar tool for benchmarking performances :/

teameh · 2017-08-03T12:46:00Z

Indeed

@public

Summary: @public This sync includes the following changes: - **[bf9fadfcf](facebook/react@bf9fadfcf)**: [Hooks] Remove dispatch callbacks (#14037) //<Andrew Clark>// - **[8c67bbf18](facebook/react@8c67bbf18)**: [scheduler] Deadline object -> shouldYield (#14025) //<Andrew Clark>// - **[e02086bfc](facebook/react@e02086bfc)**: Warn about variable number of dependencies //<Andrew Clark>// - **[b92cdef64](facebook/react@b92cdef64)**: Rename ReactHooks test suite //<Andrew Clark>// - **[6efbbe068](facebook/react@6efbbe068)**: Prettier //<Sophie Alpert>// - **[504576306](facebook/react@504576306)**: Swap order of function member in hook union types //<Andrew Clark>// - **[ddbfe2ed5](facebook/react@ddbfe2ed5)**: Add ESLint rule for React Hooks //<Caleb Meredith>// - **[acb489963](facebook/react@acb489963)**: Clear effect tags from a fiber that suspends in non-concurrent mode //<Andrew Clark>// - **[933b64710](facebook/react@933b64710)**: Disable hook update callback (2nd arg to setState/dispatch) //<Andrew Clark>// - **[5fc84efac](facebook/react@5fc84efac)**: Skip updating effect tag when skipping effect //<Sophie Alpert>// - **[9f34eb79a](facebook/react@9f34eb79a)**: Add readContext to ReactPartialRendererHooks //<Alex Taylor>// - **[f7cb9d2b2](facebook/react@f7cb9d2b2)**: Warn about useContext(Consumer|Provider) //<Dan Abramov>// - **[63cc7d2b3](facebook/react@63cc7d2b3)**: Test useContext in pure, forwardRef, and PureComponent //<Dan Abramov>// - **[3a7c6da8d](facebook/react@3a7c6da8d)**: Make effects actually work with memo //<Sophie Alpert>// - **[75a1c2e72](facebook/react@75a1c2e72)**: The Lost Effect, chapter 3 //<Sophie Alpert>// - **[55a4b1f37](facebook/react@55a4b1f37)**: memo supports Hooks //<Sophie Alpert>// - **[30aa4ad55](facebook/react@30aa4ad55)**: The Lost Effect, chapter 2 //<Sophie Alpert>// - **[b772e0e26](facebook/react@b772e0e26)**: "functional component" -> "function component" in hooks error messages //<Sebastian Markbåge>// - **[9e9e3970e](facebook/react@9e9e3970e)**: Warn for Hook set-state on unmounted component //<Sophie Alpert>// - **[6514697f0](facebook/react@6514697f0)**: Make sure deletions don't stop passive effects //<Sophie Alpert>// - **[dd019d34d](facebook/react@dd019d34d)**: Add support for hooks to ReactDOMServer //<Alex Taylor>// - **[11d0781ee](facebook/react@11d0781ee)**: Defer useEffect until after paint //<Andrew Clark>// - **[105f2de54](facebook/react@105f2de54)**: Put hooks behind feature flag //<Andrew Clark>// - **[7bee9fbdd](facebook/react@7bee9fbdd)**: Initial hooks implementation //<Andrew Clark>// - **[37c7fe0a5](facebook/react@37c7fe0a5)**: Update createRoot warning message based on `enableStableConcurrentModeAPIs` (#14017) //<Rauno Freiberg>// - **[95f98a187](facebook/react@95f98a187)**: fix typo (#13955) //<Joseph>// - **[e217f2f1a](facebook/react@e217f2f1a)**: Updated comment for getEventModifierState (#13918) //<Patrick>// - **[275e76e83](facebook/react@275e76e83)**: Enable stable concurrent APIs flag for 16.7 alpha (#13928) //<Brian Vaughn>// - **[8b97a9c36](facebook/react@8b97a9c36)**: Update bundle sizes for 16.6.0 release //<Dan Abramov>// - **[6c29eabf7](facebook/react@6c29eabf7)**: Updating package versions for release 16.6.0 //<Dan Abramov>// - **[d520b358d](facebook/react@d520b358d)**: Revert all package versions to 16.5.2 state //<Dan Abramov>// - **[8f1ec7649](facebook/react@8f1ec7649)**: Bump versions to beta.0 //<Dan Abramov>// - **[5055a83fa](facebook/react@5055a83fa)**: Revert "Revert "Updating dependencies for react-noop-renderer"" //<Dan Abramov>// - **[3e8b4a5b8](facebook/react@3e8b4a5b8)**: Revert "Updating dependencies for react-noop-renderer" //<Brian Vaughn>// - **[d8e03de4a](facebook/react@d8e03de4a)**: [react-cache] Remove `cache` as argument to `read` (#13865) //<Andrew Clark>// - **[fefa1269e](facebook/react@fefa1269e)**: Revert accidentally committed existence check (#13931) //<Andrew Clark>// - **[80a0c05ce](facebook/react@80a0c05ce)**: Removed react-cache from the bundle list for now (#13930) //<BrianVaughn>// - **[915e4eab5](facebook/react@915e4eab5)**: Add "unstable_" prefix to react-cache and jest-react (#13929) //<Brian Vaughn>// - **[cbbc2b6c4](facebook/react@cbbc2b6c4)**: [Synchronous Suspense] Suspending a class outside concurrent mode (#13926) //<Andrew Clark>// - **[4947fcd76](facebook/react@4947fcd76)**: Fix lint (#13923) //<Sebastian Markbåge>// - **[d75c69e0c](facebook/react@d75c69e0c)**: Remove unstable_ prefix from Suspense (#13922) //<Sebastian Markbåge>// - **[c8ef2feda](facebook/react@c8ef2feda)**: Remove redundant word "the" (#13919) //<John Lin>// - **[55444a6f4](facebook/react@55444a6f4)**: Try rendering again if a timed out tree receives an update (#13921) //<Andrew Clark>// - **[04c4f2fce](facebook/react@04c4f2fce)**: [reconciler] ReactFiberNewContext import maxSigned31BitInt twice (#13857) //<yongningfu>// - **[409e472fc](facebook/react@409e472fc)**: Add flow types in ReactControlledComponent (#13669) //<Abdul Rauf>// - **[663835a43](facebook/react@663835a43)**: Add flow types in getEventModifierState (#13909) //<Abdul Rauf>// - **[82710097f](facebook/react@82710097f)**: Add flow types in getNodeForCharacterOffset (#13908) //<Abdul Rauf>// - **[b753f76a7](facebook/react@b753f76a7)**: Fix failing async tests in Node 10 //<Andrew Clark>// - **[b5c0852fd](facebook/react@b5c0852fd)**: Bump version to 16.6.0-beta.0 (#13906) //<Dan Abramov>// - **[769b1f270](facebook/react@769b1f270)**: pure -> memo (#13905) //<Dan Abramov>// - **[8ecd4bd4f](facebook/react@8ecd4bd4f)**: Add support for React.pure in ReactDOMServer (#13855) //<Alex Taylor>// - **[15b11d23f](facebook/react@15b11d23f)**: Allow arbitrary types to be wrapped in pure (#13903) //<Sebastian Markbåge>// - **[e770af7a3](facebook/react@e770af7a3)**: Add back accidentally deleted `break` to prevent fallthrough //<Andrew Clark>// - **[95a313ec0](facebook/react@95a313ec0)**: Unfork Lazy Component Branches (#13902) //<Sebastian Markbåge>// - **[e16cdd5b1](facebook/react@e16cdd5b1)**: Always bail out timed out children even if they receive an update (#13901) //<Andrew Clark>// - **[7268d97d2](facebook/react@7268d97d2)**: Centralize props memoization (#13900) //<Sebastian Markbåge>// - **[0fc044679](facebook/react@0fc044679)**: Class component can suspend without losing state outside concurrent mode (#13899) //<Andrew Clark>// - **[36db53822](facebook/react@36db53822)**: Bugfix for #13886 (#13896) //<Andrew Clark>// - **[6938dcaac](facebook/react@6938dcaac)**: SSR support for class contextType (#13889) //<Sebastian Markbåge>// - **[fa65c58e1](facebook/react@fa65c58e1)**: Add readContext to SSR (#13888) //<Sebastian Markbåge>// - **[d9a3cc070](facebook/react@d9a3cc070)**: React.lazy constructor must return result of a dynamic import (#13886) //<Andrew Clark>// - **[d9659e499](facebook/react@d9659e499)**: Lazy components must use React.lazy (#13885) //<Andrew Clark>// - **[0648ca618](facebook/react@0648ca618)**: Revert "React.pure automatically forwards ref" (#13887) //<Sophie Alpert>// - **[4dd772ac1](facebook/react@4dd772ac1)**: Prettier :( //<Andrew Clark>// - **[98bab66c3](facebook/react@98bab66c3)**: Fix lint //<Andrew Clark>// - **[8ced545e3](facebook/react@8ced545e3)**: Suspense component does not capture if `fallback` is not defined (#13879) //<Andrew Clark>// - **[b738ced47](facebook/react@b738ced47)**: Remove render prop option from Suspense (#13880) //<Andrew Clark>// - **[55b827942](facebook/react@55b827942)**: Strict mode and default mode should have same Suspense semantics (#13882) //<Andrew Clark>// - **[dac9202a9](facebook/react@dac9202a9)**: Hide timed-out children instead of deleting them so their state ispreserved (#13823) //<Andrew Clark>// - **[4f0bd4590](facebook/react@4f0bd4590)**: Replacement of old links, by the new ones of the documentation. (#13871) //<Pablo Javier D. A>// - **[7685b55d2](facebook/react@7685b55d2)**: Remove unstable_read() in favor of direct dispatcher call (#13861)//<Dan Abramov>// - **[21a79a1d9](facebook/react@21a79a1d9)**: [schedule] Call ensureHostCallbackIsScheduled without args (#13852) //<Trivikram Kamat>// - **[9ea4bc6ed](facebook/react@9ea4bc6ed)**: Fix false positive context warning when using an old React (#13850) //<Dan Abramov>// Release Notes: [GENERAL] [FEATURE] [React] - React sync for revisions 4773fdf...bf9fadf Reviewed By: arcanis Differential Revision: D12850275 fbshipit-source-id: b6d5c61a044c970c04c2ff3370fa77222afd1eb1

@public

Summary: @public This sync includes the following changes: - **[3ff2c7ccd](facebook/react@3ff2c7ccd)**: Invalid actualDuration+treeBaseDuration for hidden+suspended trees (#14065) //<Brian Vaughn>// - **[5afa1c4ed](facebook/react@5afa1c4ed)**: Tag MemoComponent with PerformedWork effectTag for DevTools Profiler (#14141) //<Brian Vaughn>// - **[e27720d7f](facebook/react@e27720d7f)**: [Synchronous Suspense] Reuse deletions from primary tree (#14133) //<Andrew Clark>// - **[aa1ffe4e7](facebook/react@aa1ffe4e7)**: Show deprecated context object warnings usage in ReactDOM server (#14033) //<Dominic Gannaway>// - **[e3a7b9645](facebook/react@e3a7b9645)**: Make react-debug-tools a private package //<Andrew Clark>// - **[ba1984423](facebook/react@ba1984423)**: Update bundle sizes for 16.6.1 release //<Andrew Clark>// - **[b50e63ef5](facebook/react@b50e63ef5)**: Updating package versions for release 16.6.1 //<Andrew Clark>// - **[8f2c89e96](facebook/react@8f2c89e96)**: Make react-debug-tools a private package //<Andrew Clark>// - **[2aecbcd6f](facebook/react@2aecbcd6f)**: "functional component" -> "function component" (#14123) //<locknono>// - **[b4608dd24](facebook/react@b4608dd24)**: Remove unused simulated flag parameter (#14127) //<Nadav Kaner>// - **[3c69a1881](facebook/react@3c69a1881)**: Recover from errors with a boundary in completion phase (#14104) //<Dan Abramov>// - **[b020fb114](facebook/react@b020fb114)**: Check correct commit phase props in fuzz tester (#14129) //<Andrew Clark>// - **[b67c1a2ee](facebook/react@b67c1a2ee)**: Add DEV-only checks for assumption about instance properties (#14128) //<Dan Abramov>// - **[f777d196e](facebook/react@f777d196e)**: Fix lazy() with defaultProps (#14112) //<Dan Abramov>// - **[e4512991c](facebook/react@e4512991c)**: Fix unhiding in IE11 (#14126) //<Sophie Alpert>// - **[affb2b50c](facebook/react@affb2b50c)**: Enable hooks in www test renderer, too //<Andrew Clark>// - **[0a0f503d5](facebook/react@0a0f503d5)**: Enable hooks in www build (#14116) //<Andrew Clark>// - **[600651e68](facebook/react@600651e68)**: Restore the Hooks dispatcher after using SSR (#14105) //<Dan Abramov>// - **[e9a2ec915](facebook/react@e9a2ec915)**: [suspense] Avoid double commit by re-rendering immediately and reusing primary children (#14083) //<Andrew Clark>// - **[9d47143e8](facebook/react@9d47143e8)**: Implement {,un}hideInstance on RN renderer (#14115) //<Sophie Alpert>// - **[ebdb47d2c](facebook/react@ebdb47d2c)**: DCE hooks code when flag is off (#14111) //<Sophie Alpert>// - **[8b87ebf5b](facebook/react@8b87ebf5b)**: Rename .internal tests that aren't using internals (#14109) //<Sophie Alpert>// - **[da04058a9](facebook/react@da04058a9)**: Use Function.prototype.apply in warningWithoutStack (#14107) //<Sophie Alpert>// - **[fd1256a56](facebook/react@fd1256a56)**: Add Debug Tools Package for Introspection of Hooks (#14085) //<Sebastian Markbåge>// - **[b305c4e03](facebook/react@b305c4e03)**: fix(react-dom): Fix crash during server render (#14103) //<Tiago Nunes>// - **[d34d1c3ba](facebook/react@d34d1c3ba)**: react-reconciler: Update README.md (#13953) //<Marcelo Jorge Vieira>// - **[6c404d82a](facebook/react@6c404d82a)**: Bugfix: Add back early return in setOffsets which was removed between 16.4.2 and 16.5.0. Fails in Edge in some scenarios. (#14095) //<einarq>// - **[8eca0eff8](facebook/react@8eca0eff8)**: chore(tests): don't rely on jest fake timers scheduling real timers (#14003) //<Simen Bekkhus>// - **[293fed899](facebook/react@293fed899)**: Warn for bad useEffect return value (#14069) //<Sophie Alpert>// - **[ae196e84b](facebook/react@ae196e84b)**: Rename inputsAreEqual to areHookInputsEqual & move it to shared (#14036) //<Mateusz Burzyński>// - **[c898020e0](facebook/react@c898020e0)**: Warn for forwardRef(memo(...)) (#14070) //<Sophie Alpert>// - **[bf9fadfcf](facebook/react@bf9fadfcf)**: [Hooks] Remove dispatch callbacks (#14037) //<Andrew Clark>// - **[8c67bbf18](facebook/react@8c67bbf18)**: [scheduler] Deadline object -> shouldYield (#14025) //<Andrew Clark>// - **[e02086bfc](facebook/react@e02086bfc)**: Warn about variable number of dependencies //<Andrew Clark>// - **[b92cdef64](facebook/react@b92cdef64)**: Rename ReactHooks test suite //<Andrew Clark>// - **[6efbbe068](facebook/react@6efbbe068)**: Prettier //<Sophie Alpert>// - **[504576306](facebook/react@504576306)**: Swap order of function member in hook union types //<Andrew Clark>// - **[ddbfe2ed5](facebook/react@ddbfe2ed5)**: Add ESLint rule for React Hooks //<Caleb Meredith>// - **[acb489963](facebook/react@acb489963)**: Clear effect tags from a fiber that suspends in non-concurrent mode //<Andrew Clark>// - **[933b64710](facebook/react@933b64710)**: Disable hook update callback (2nd arg to setState/dispatch) //<Andrew Clark>// - **[5fc84efac](facebook/react@5fc84efac)**: Skip updating effect tag when skipping effect //<Sophie Alpert>// - **[9f34eb79a](facebook/react@9f34eb79a)**: Add readContext to ReactPartialRendererHooks //<Alex Taylor>// - **[f7cb9d2b2](facebook/react@f7cb9d2b2)**: Warn about useContext(Consumer|Provider) //<Dan Abramov>// - **[63cc7d2b3](facebook/react@63cc7d2b3)**: Test useContext in pure, forwardRef, and PureComponent //<Dan Abramov>// - **[3a7c6da8d](facebook/react@3a7c6da8d)**: Make effects actually work with memo //<Sophie Alpert>// - **[75a1c2e72](facebook/react@75a1c2e72)**: The Lost Effect, chapter 3 //<Sophie Alpert>// - **[55a4b1f37](facebook/react@55a4b1f37)**: memo supports Hooks //<Sophie Alpert>// - **[30aa4ad55](facebook/react@30aa4ad55)**: The Lost Effect, chapter 2 //<Sophie Alpert>// - **[b772e0e26](facebook/react@b772e0e26)**: "functional component" -> "function component" in hooks error messages //<Sebastian Markbåge>// - **[9e9e3970e](facebook/react@9e9e3970e)**: Warn for Hook set-state on unmounted component //<Sophie Alpert>// - **[6514697f0](facebook/react@6514697f0)**: Make sure deletions don't stop passive effects //<Sophie Alpert>// - **[dd019d34d](facebook/react@dd019d34d)**: Add support for hooks to ReactDOMServer //<Alex Taylor>// - **[11d0781ee](facebook/react@11d0781ee)**: Defer useEffect until after paint //<Andrew Clark>// - **[105f2de54](facebook/react@105f2de54)**: Put hooks behind feature flag //<Andrew Clark>// - **[7bee9fbdd](facebook/react@7bee9fbdd)**: Initial hooks implementation //<Andrew Clark>// - **[37c7fe0a5](facebook/react@37c7fe0a5)**: Update createRoot warning message based on `enableStableConcurrentModeAPIs` (#14017) //<Rauno Freiberg>// - **[95f98a187](facebook/react@95f98a187)**: fix typo (#13955) //<Joseph>// - **[e217f2f1a](facebook/react@e217f2f1a)**: Updated comment for getEventModifierState (#13918) //<Patrick>// - **[275e76e83](facebook/react@275e76e83)**: Enable stable concurrent APIs flag for 16.7 alpha (#13928) //<Brian Vaughn>// - **[8b97a9c36](facebook/react@8b97a9c36)**: Update bundle sizes for 16.6.0 release //<Dan Abramov>// - **[6c29eabf7](facebook/react@6c29eabf7)**: Updating package versions for release 16.6.0 //<Dan Abramov>// - **[d520b358d](facebook/react@d520b358d)**: Revert all package versions to 16.5.2 state //<Dan Abramov>// - **[8f1ec7649](facebook/react@8f1ec7649)**: Bump versions to beta.0 //<Dan Abramov>// - **[5055a83fa](facebook/react@5055a83fa)**: Revert "Revert "Updating dependencies for react-noop-renderer"" //<Dan Abramov>// - **[3e8b4a5b8](facebook/react@3e8b4a5b8)**: Revert "Updating dependencies for react-noop-renderer" //<Brian Vaughn>// - **[d8e03de4a](facebook/react@d8e03de4a)**: [react-cache] Remove `cache` as argument to `read` (#13865) //<Andrew Clark>// - **[fefa1269e](facebook/react@fefa1269e)**: Revert accidentally committed existence check (#13931) //<Andrew Clark>// - **[80a0c05ce](facebook/react@80a0c05ce)**: Removed react-cache from the bundle list for now (#13930) //<BrianVaughn>// - **[915e4eab5](facebook/react@915e4eab5)**: Add "unstable_" prefix to react-cache and jest-react (#13929) //<Brian Vaughn>// - **[cbbc2b6c4](facebook/react@cbbc2b6c4)**: [Synchronous Suspense] Suspending a class outside concurrent mode (#13926) //<Andrew Clark>// - **[4947fcd76](facebook/react@4947fcd76)**: Fix lint (#13923) //<Sebastian Markbåge>// - **[d75c69e0c](facebook/react@d75c69e0c)**: Remove unstable_ prefix from Suspense (#13922) //<Sebastian Markbåge>// - **[c8ef2feda](facebook/react@c8ef2feda)**: Remove redundant word "the" (#13919) //<John Lin>// - **[55444a6f4](facebook/react@55444a6f4)**: Try rendering again if a timed out tree receives an update (#13921) //<Andrew Clark>// - **[04c4f2fce](facebook/react@04c4f2fce)**: [reconciler] ReactFiberNewContext import maxSigned31BitInt twice (#13857) //<yongningfu>// - **[409e472fc](facebook/react@409e472fc)**: Add flow types in ReactControlledComponent (#13669) //<Abdul Rauf>// - **[663835a43](facebook/react@663835a43)**: Add flow types in getEventModifierState (#13909) //<Abdul Rauf>// - **[82710097f](facebook/react@82710097f)**: Add flow types in getNodeForCharacterOffset (#13908) //<Abdul Rauf>// - **[b753f76a7](facebook/react@b753f76a7)**: Fix failing async tests in Node 10 //<Andrew Clark>// - **[b5c0852fd](facebook/react@b5c0852fd)**: Bump version to 16.6.0-beta.0 (#13906) //<Dan Abramov>// - **[769b1f270](facebook/react@769b1f270)**: pure -> memo (#13905) //<Dan Abramov>// - **[8ecd4bd4f](facebook/react@8ecd4bd4f)**: Add support for React.pure in ReactDOMServer (#13855) //<Alex Taylor>// - **[15b11d23f](facebook/react@15b11d23f)**: Allow arbitrary types to be wrapped in pure (#13903) //<Sebastian Markbåge>// - **[e770af7a3](facebook/react@e770af7a3)**: Add back accidentally deleted `break` to prevent fallthrough //<Andrew Clark>// - **[95a313ec0](facebook/react@95a313ec0)**: Unfork Lazy Component Branches (#13902) //<Sebastian Markbåge>// - **[e16cdd5b1](facebook/react@e16cdd5b1)**: Always bail out timed out children even if they receive an update (#13901) //<Andrew Clark>// - **[7268d97d2](facebook/react@7268d97d2)**: Centralize props memoization (#13900) //<Sebastian Markbåge>// - **[0fc044679](facebook/react@0fc044679)**: Class component can suspend without losing state outside concurrent mode (#13899) //<Andrew Clark>// - **[36db53822](facebook/react@36db53822)**: Bugfix for #13886 (#13896) //<Andrew Clark>// - **[6938dcaac](facebook/react@6938dcaac)**: SSR support for class contextType (#13889) //<Sebastian Markbåge>// - **[fa65c58e1](facebook/react@fa65c58e1)**: Add readContext to SSR (#13888) //<Sebastian Markbåge>// - **[d9a3cc070](facebook/react@d9a3cc070)**: React.lazy constructor must return result of a dynamic import (#13886) //<Andrew Clark>// - **[d9659e499](facebook/react@d9659e499)**: Lazy components must use React.lazy (#13885) //<Andrew Clark>// - **[0648ca618](facebook/react@0648ca618)**: Revert "React.pure automatically forwards ref" (#13887) //<Sophie Alpert>// - **[4dd772ac1](facebook/react@4dd772ac1)**: Prettier :( //<Andrew Clark>// - **[98bab66c3](facebook/react@98bab66c3)**: Fix lint //<Andrew Clark>// - **[8ced545e3](facebook/react@8ced545e3)**: Suspense component does not capture if `fallback` is not defined (#13879) //<Andrew Clark>// - **[b738ced47](facebook/react@b738ced47)**: Remove render prop option from Suspense (#13880) //<Andrew Clark>// - **[55b827942](facebook/react@55b827942)**: Strict mode and default mode should have same Suspense semantics (#13882) //<Andrew Clark>// - **[dac9202a9](facebook/react@dac9202a9)**: Hide timed-out children instead of deleting them so their state ispreserved (#13823) //<Andrew Clark>// - **[4f0bd4590](facebook/react@4f0bd4590)**: Replacement of old links, by the new ones of the documentation. (#13871) //<Pablo Javier D. A>// - **[7685b55d2](facebook/react@7685b55d2)**: Remove unstable_read() in favor of direct dispatcher call (#13861)//<Dan Abramov>// - **[21a79a1d9](facebook/react@21a79a1d9)**: [schedule] Call ensureHostCallbackIsScheduled without args (#13852) //<Trivikram Kamat>// - **[9ea4bc6ed](facebook/react@9ea4bc6ed)**: Fix false positive context warning when using an old React (#13850) //<Dan Abramov>// Release Notes: [GENERAL] [FEATURE] [React] - React sync for revisions 4773fdf...3ff2c7c Reviewed By: sebmarkbage Differential Revision: D12955345 fbshipit-source-id: db12076758fe85a519074ca4fe3aa5ede6f4fd49

* Fix IllegalStateException when dismissing DialogManager Summary: This diff fixes a IllegalStateException that can happen because of a race condition when using DialogManager Reviewed By: fkgozali Differential Revision: D12899432 fbshipit-source-id: 98fb7c1ee1d292a959628a33c8a2dd5a6d93e328 * Trivial cleanup in ReactRootView Summary: Trivial clanup of imports in ReactRootView Reviewed By: fkgozali Differential Revision: D12899430 fbshipit-source-id: 83bb052bbeee9e02e91157305420a2dd799e60e2 * RN: Copyright Header for `ReactInstanceManagerTest.java` Summary: Missing when D12829677 landed. Reviewed By: mdvacca Differential Revision: D12903182 fbshipit-source-id: 1c142acb2a098b1118170f2f8ed8cf719fc14f90 * Fix the comment for getSize in Image.android.js (#22092) Summary: A minor change to the comment in the Image.android.js file. Pull Request resolved: https://github.com/facebook/react-native/pull/22092 Differential Revision: D12918066 Pulled By: TheSavior fbshipit-source-id: f27c63241c9dde780c037edcbcdf4cc10d55d33e * Fix duplicate function declaration in WebSockets (#22098) Summary: Fixes the only ESLint error pending to resolve. It was a duplicate `get` declaration. Pull Request resolved: https://github.com/facebook/react-native/pull/22098 Differential Revision: D12918078 Pulled By: TheSavior fbshipit-source-id: c738d6880241dbc1f1ddc06c2d4e52443c00768a * Improving Modal `visible` prop check to handle undefined and null (#22072) Summary: Changing the the this.props.visible if to be ` if (!!this.props.visible === false)` . So passing undefined, or other values wont set the modal to be visible. Granting that anything that is not true, will set the modal to null on the render. I make this this PR, because on the company that im working, we used a lot of RN. At the moment, we arent using anything like flow or TS. But to grant that the modals will only show if they are set visible to true i have changed the if made. _Pull requests that expand test coverage are more likely to get reviewed. Add a test case whenever possible!_ Pull Request resolved: https://github.com/facebook/react-native/pull/22072 Differential Revision: D12918086 Pulled By: TheSavior fbshipit-source-id: 8f9c63ac6fd56d83949bb8428ad7c5b7bf805c49 * Flow strict ScrollViewMock (#22103) Summary: Related to #22100 Turn Flow strict mode on for ScrollViewMock. This file used to declare jest var as `any` but jest module is already typed in root flow folder. Note: I had to use a quick fix for polyfillPromise. See here #22101 - All flow tests succeed. [GENERAL] [ENHANCEMENT] [ScrollViewMock.js] - Flow strict mode Pull Request resolved: https://github.com/facebook/react-native/pull/22103 Differential Revision: D12918380 Pulled By: TheSavior fbshipit-source-id: cd3aba47b1a43e76a7da09e15cc2d9cfcdf7f56d * Remove var in Libraries/emitter/* (#22087) Summary: Replaces the keywords var with const in Libraries/emitter/EventValidator.js If this PR fixes an issue, type "Fixes #issueNumber" to automatically close the issue when the PR is merged. _Pull requests that expand test coverage are more likely to get reviewed. Add a test case whenever possible!_ - [x] Check npm run flow - [x] Check npm run flow-check-ios - [x] Check npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/emitter] - remove `var` Pull Request resolved: https://github.com/facebook/react-native/pull/22087 Differential Revision: D12918444 Pulled By: TheSavior fbshipit-source-id: 630ccb283fd6c3118a22124a656038eac4a88599 * RN: Revert React 16.6 Sync Summary: There are some critical bugs that require further investigation in the most recent upgrade to React 16.6 (and ReactNativeRenderer changes). This revision reverts the sync until these issues have been resolved. Reviewed By: mdvacca Differential Revision: D12918541 fbshipit-source-id: 5c1ada185851ba599f3c86387158a2b41f3dcf3e * Remove flow-strict from polyfillPromise (#22048) Summary: Flow is broken for a bunch of people and has been for the last few days. For some reason this isn't causing any builds to fail which we will need to look into. For now, this stops the bleeding. I *think* this is because of case sensitivity differenes between Mac and where all of our CI machines run. ``` Error ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ Libraries/Core/polyfillPromise.js:21:33 Importing from an untyped module makes it any and is not safe! Did you mean to add // flow to the top of Promise? (untyped-import) 18│ * If you don't need these polyfills, don't use InitializeCore; just directly 19│ * require the modules you need from InitializeCore for setup. 20│ */ 21│ polyfillGlobal('Promise', () => require('Promise')); 22│ ``` Pull Request resolved: https://github.com/facebook/react-native/pull/22048 Reviewed By: shergin Differential Revision: D12918418 Pulled By: TheSavior fbshipit-source-id: 9d9db1b3686eab906244180325c12ffcce92be8c * Remove unused variables (#22097) Summary: Fix unused variable ESLint warnings. Pull Request resolved: https://github.com/facebook/react-native/pull/22097 Differential Revision: D12919249 Pulled By: TheSavior fbshipit-source-id: f680fa7277c58cf685e70dfb911753a30fe01c1d * Replace var to const in Libraries/Utilities/deepFreezeAndThrowOnMutationInDev-test.js (#22110) Summary: Replaces the keywords var to const in Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js - [x] Check npm run flow - [x] Check npm run flow-check-ios - [x] Check npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js] - replace var Pull Request resolved: https://github.com/facebook/react-native/pull/22110 Differential Revision: D12919284 Pulled By: TheSavior fbshipit-source-id: 4a3a3f4c49665c538ed5f38f3cc2142d40ac4d55 * Remove var in Libraries/vendor/core/merge.js (#22108) Summary: Replaces the keywords var with const in Libraries/merge.js If this PR fixes an issue, type "Fixes #issueNumber" to automatically close the issue when the PR is merged. Pull requests that expand test coverage are more likely to get reviewed. Add a test case whenever possible! - [x] Check npm run flow - [x] Check npm run flow-check-ios - [x] Check npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/core] - remove var Pull Request resolved: https://github.com/facebook/react-native/pull/22108 Differential Revision: D12919282 Pulled By: TheSavior fbshipit-source-id: e3c8569c47c95ad3d1a061917c90185c2694c78f * Remove var in Libraries/Utilities/MatrixMath.js (#22111) Summary: Replaces the keywords var with let in Libraries/Utilities/MatrixMath.js - [x] Check npm run flow - [x] Check npm run flow-check-ios - [x] Check npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/Utilities/MatrixMath.js] - remove `var` Pull Request resolved: https://github.com/facebook/react-native/pull/22111 Differential Revision: D12919285 Pulled By: TheSavior fbshipit-source-id: dca65d2da311b5c50ab6ce7338af1cc941fb7a33 * Remove var in Libraries/Utilities/buildStyleInterpolator.js (#22112) Summary: Replaces the keywords var with const in Libraries/Utilities/buildStyleInterpolator.js Pull Request resolved: https://github.com/facebook/react-native/pull/22112 Differential Revision: D12919286 Pulled By: TheSavior fbshipit-source-id: bc39a1efc2c372365d95cd305cc6d915f030b209 * Make PR template consistent with Changelog (#22117) Summary: In the new changelog format, we're following [Keep a Changelog](https://keepachangelog.com/en/1.0.0). This change updates the PR template to follow their change types, plus it simplifies the *CATEGORY* field to follow the changelog's groupings. Some simplified examples have been provided, though I plan to revisit this after 0.58 to add real-world examples. This change is motivated by react-native-community/react-native-releases#47. Pull Request resolved: https://github.com/facebook/react-native/pull/22117 Differential Revision: D12919271 Pulled By: TheSavior fbshipit-source-id: 91f063f769357b24383db281545678b924ad3efb * Fix rn-cli linting issues (#22099) Summary: Fixes ESLint warnings in `react-native-cli`. I isolated this PR from other lint fixes because of the top `DO NOT MODIFY THIS FILE` message. Either way I think this issues should be fixed :) Pull Request resolved: https://github.com/facebook/react-native/pull/22099 Differential Revision: D12920673 Pulled By: TheSavior fbshipit-source-id: ed1308fe7ef4633b793d85fe8c6ce5d068651e12 * Turn Flow strict mode on for DatePickerIOS (#22105) Summary: Related to #22100 Turn Flow strict mode on for DatePickerIOS. - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android This error was happend #22101 #22048 [GENERAL] [ENHANCEMENT] [Components/DatePicker/DatePickerIOS.ios.js] - Flow strict mode Pull Request resolved: https://github.com/facebook/react-native/pull/22105 Differential Revision: D12920939 Pulled By: TheSavior fbshipit-source-id: aae5ca04d656abb1cf34168e12e44dd50f0a603c * Turn Flow strict mode on for KeyBoard (#22114) Summary: Related to #22100 Turn Flow strict mode on for KeyBoard - [x] npm run prettier - [ ] npm run flow-check-ios - [ ] npm run flow-check-android This error was happend #22101 #22048 [GENERAL] [ENHANCEMENT] [Components/Keyboard/Keyboard.js] - Flow strict mode Pull Request resolved: https://github.com/facebook/react-native/pull/22114 Differential Revision: D12920947 Pulled By: TheSavior fbshipit-source-id: 8d72019efd4d30032ce4784764e5deb9c60e7b01 * remove var in ReactAndroid/src/androidTest (#22136) Summary: I removed var in ReactAndroid/src/androidTest. - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android [GENERAL] [ReactAndroid/src/androidTest] - remove var Pull Request resolved: https://github.com/facebook/react-native/pull/22136 Differential Revision: D12921227 Pulled By: TheSavior fbshipit-source-id: 45c03a52a5eafa25965aa785da094421c3df3999 * remove var in ReactAndroid/src/androidTest. (#22137) Summary: I removed var in ReactAndroid/src/androidTest. - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android [GENERAL] [ReactAndroid/src/androidTest] - remove var Pull Request resolved: https://github.com/facebook/react-native/pull/22137 Differential Revision: D12921228 Pulled By: TheSavior fbshipit-source-id: d3b7380b6047fc304265d0f47a53cb1170a6aea6 * Remove var in ReactAndroid/src/androidTest (#22135) Summary: I removed var in ReactAndroid/src/androidTest. - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android [GENERAL] [ReactAndroid/src/androidTest] - remove var Pull Request resolved: https://github.com/facebook/react-native/pull/22135 Differential Revision: D12921224 Pulled By: TheSavior fbshipit-source-id: 9a14755944df642f8b82c46c691d6ed6ee8fa623 * Performance improvement for loading cached images on iOS (#20356) Summary: This PR increases the speed at which cached images are loaded and displayed on the screen. Images are currently cached in memory using RCTImageCache, but each time they are loaded, a round trip through RCTNetworking happens before RCTImageCache is even checked. This is likely so that RCTNetworking can handle the caching behavior required by the HTTP headers. However, this means that at the very least, images are read from disk each time they're loaded. This PR makes RCTImageLoader check RCTImageCache _before_ sending a request to RCTNetworking. RCTImageCache stores a bit of information about the response headers so that it can respect Cache-Control fields without needing a roundtrip through RCTNetworking. Here are a couple of graphs showing improved loading times before this change (blue) and after (red) with SDWebImage (yellow) as a baseline comparison. The increase is most evident when loading especially large (hi-res photo size) images, or loading multiple images at a time. https://imgur.com/a/cnL47Z0 More performance gains can potentially be had by increasing the size limit of RCTImageCache: https://github.com/facebook/react-native/blob/1a6666a116fd8b9e8637956de2b41a1c315dd470/Libraries/Image/RCTImageCache.m#L39 but this comes at the tradeoff of being more likely to run into OOM crashes. Pull Request resolved: https://github.com/facebook/react-native/pull/20356 Reviewed By: PeteTheHeat Differential Revision: D12909121 Pulled By: alsun2001 fbshipit-source-id: 7f5e21928c53d7aa53f293b7f1b4ec5c99b5f0c2 * Increase cache and file size limits Summary: This change expands the limits to support a greater variety of scenarios. Reviewed By: PeteTheHeat Differential Revision: D12911841 fbshipit-source-id: a7c8eb6fece49dfe47b3ada98f55a02b43396ce8 * Disallow Optional::operator=(nullptr_t) unless T is a pointer Summary: The old implementation of folly::none inadvertently allowed disengaging an optional by writing `op = nullptr`. Disallow that and require `op = folly::none`. Reviewed By: yfeldblum Differential Revision: D12884724 fbshipit-source-id: b17bcf00b245069d8ea2d9bc3703b0fdcaa85c07 * remove createReactClass from ToolbarAndroid/ToolbarAndroid.android.js (#21893) Summary: Related to #21581 . Removed createReactClass from the Libraries/Components/ToolbarAndroid/ToolbarAndroid.android.js - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/Components/ToolbarAndroid/ToolbarAndroid.android.js] - remove createReactClass dependency Pull Request resolved: https://github.com/facebook/react-native/pull/21893 Reviewed By: TheSavior Differential Revision: D12826971 Pulled By: RSNara fbshipit-source-id: 3d3fb88a3c9faf3ef89e386ca0d41d939f5d14dd * remove createReactClass from SegmentedControlIOS.ios.js (#21888) Summary: Related to #21581 . Removed createReactClass from the SegmentedControlIOS.ios.js - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/Components/SegmentedControlIOS/SegmentedControlIOS.ios.js] - remove createReactClass dependency Pull Request resolved: https://github.com/facebook/react-native/pull/21888 Reviewed By: TheSavior Differential Revision: D12827447 Pulled By: RSNara fbshipit-source-id: 74a91bcba131d9a34a136c6127459a40424a0738 * Flow type RefreshControl (#22119) Summary: Related to #22100 Enhance Flow types for RefreshControl specifying `onRefresh` props type. There are still 2 `any` left using `requireNativeComponent` that need to be addressed to turn Flow to strict mode. I went through `RCTRefreshControl` and `AndroidSwipeRefreshLayout` classes to understand where this method came from. - All flow tests succeed. [GENERAL] [ENHANCEMENT] [RefreshControl.js] - Flow onRefresh type Pull Request resolved: https://github.com/facebook/react-native/pull/22119 Differential Revision: D12919764 Pulled By: TheSavior fbshipit-source-id: 9ba675be8dbce77d77972acb904fc13c68524831 * Remove unused styles (#22083) Summary: Removes unused styles. NOTE: Lint rule `react-native/no-unused-styles` not added because of custom lint rule internally at Facebook that does this. Pull Request resolved: https://github.com/facebook/react-native/pull/22083 Differential Revision: D12929443 Pulled By: TheSavior fbshipit-source-id: d42b0be3db745e445447e65df3b78b61f53e4229 * Fix `no-shadow` eslint warning & remove var (#22124) Summary: Fixes `no-shadow` warning for `local-cli/link/ios/getGroup.js` and remove `var` declaration keyword. ``` react-native/local-cli/link/ios/getGroup.js 13:23 warning 'group' is already declared in the upper scope no-shadow ``` - [x] Check `npm run flow` - [x] Check `npm run flow-check-ios` - [x] Check `npm run flow-check-android` - [x] Check `npm run lint` N/A Pull Request resolved: https://github.com/facebook/react-native/pull/22124 Differential Revision: D12929717 Pulled By: TheSavior fbshipit-source-id: 10f8269ae7a0e61f4d0ec6fe710889c3a7c90b3b * Removed unnecessary code in Libraries/Text/Text.js (#22132) Summary: I don't think it's necessary to use spread properties (prevState) in `getDerivedStateFromProps` Pull Request resolved: https://github.com/facebook/react-native/pull/22132 Differential Revision: D12929838 Pulled By: TheSavior fbshipit-source-id: cdc4f9df8e2f0b2878aec605478144b3e08cea89 * Flow strict StaticContainer (#22121) Summary: Related to #22100 Turn on Flow strict mode for StaticContainer.react This component needed proper Props type definition. I went through the only component (`TabBarItemIOS.ios`) using this to try to know the most appropriate props. - All flow tests succeed. [GENERAL] [ENHANCEMENT] [StaticContainer.react.js] - Flow strict mode Pull Request resolved: https://github.com/facebook/react-native/pull/22121 Differential Revision: D12929646 Pulled By: TheSavior fbshipit-source-id: 8826aa7bc83c854efdd71cdb4fba3d7ca98f2fce * Remove var in /Libralies/Experimental/IncrementalPresenter.js (#22144) Summary: Remove `var` declaration keyword in ` /Libralies/Experimental/IncrementalPresenter.js` . - [x] Check `npm run flow` - [x] Check `npm run flow-check-ios` - [x] Check `npm run flow-check-android` - [x] Check `npm run lint` [GENERAL] [ENHANCEMENT] [Libralies/Experimental] - remove `var` Pull Request resolved: https://github.com/facebook/react-native/pull/22144 Differential Revision: D12930731 Pulled By: TheSavior fbshipit-source-id: 64d7689ffec1da14479bdd7106fdea9a3dbeaa42 * Flow strict DrawerLayout (#22152) Summary: Issue in focus: #22100 The only occurrence of `Object` was replaced with the appropriate flow type A Lint error was encountered in `deepFreezeAndThrowOnMutationInDev-test.js` when running `npm run lint` and was fixed by running `yarn prettier` Pull Request resolved: https://github.com/facebook/react-native/pull/22152 Differential Revision: D12930872 Pulled By: RSNara fbshipit-source-id: f9706ed2e49d9ccedfa331594c886d2d3b615db5 * Flow strict in ViewPagerAndroid.android.js (#22134) Summary: Related to #22100 Turn Flow strict mode on for Libraries/Components/ViewPager/ViewPagerAndroid.android.js - [x] npm run prettier - [x] npm run flow-check-ios - [x] npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/Components/ViewPager/ViewPagerAndroid.android.js] - Flow strict mode Pull Request resolved: https://github.com/facebook/react-native/pull/22134 Differential Revision: D12930719 Pulled By: TheSavior fbshipit-source-id: 9519f31b7af27f0497e42fd51f18c19be3692823 * Update and expand bytecode spec Summary: * Adds parent tag as param for createNode in place of explicit appendChild commands. * Adds version info to bytecode * Adds native conditional support: Conditionals are represented in product code with the new `NativeConditional` React component. It takes params necessary to construct a native function call, and takes a render prop as a child that passes the value of the native call as an arg. In prod, the component would actually call the native module and render with that value, but in jest we render for *both* true and false and set them as children of a new jest-only primitive/host component which we special-case and generate a special command with `OP_CODE.conditional`, generate the appropriate bytecode commands for each branch, and embed them as args in the conditional OP_CODE command. When evaluating the bytecode, only one set of commands is executed, based on the native module value (which is evaluated with another new opcode which computes the value and stuffs it in a "register"). Obviously generating this bytecode is kind of a cludge compared to prepack, but when I asked @[501709947:Dominic] about it, he said they had no bytecode spec right now, so I'm running ahead with this prototype. The main thing I'm focused on is the C++/RN bytecode interpretter - this jest stuff is just a way to generate bytecode for it to consume which could be replaced or augmented with many other approaches, such as prepack, server rendering, etc. Also piggybacked a bunch of other cleanup. Reviewed By: shergin Differential Revision: D10277121 fbshipit-source-id: 15d3217a59ef481b574c742d17d8a7dc893cba90 * mostly working on Android + OTA Summary: It works great on iOS, and mostly works on Android, and is now OTA'able as part of the screen config! Haven't done template view yet. One remaining issue: Layout is borked on Android. I'm guessing the issue has to do with the timing of setting the constraints in `updateRootLayoutSpecs` and calling `mBinding.startSurface` which actually builds the shadow tree. If I try to call `updateRootLayoutSpecs` earlier, it just crashes immediately. Here's the layout it spits out, which clearly has -440 for the x of 420006, which is the RCTText component, causing it to get cut off on the left of the screen: ``` updateLayoutMountItem for reactTag: 420006 x: -440, y: -13, width: 931, height: 78 updateLayoutMountItem for reactTag: 420010 x: 26, y: 79, width: 0, height: 1651 updateLayoutMountItem for reactTag: 420012 x: 0, y: 26, width: 0, height: 158 updateLayoutMountItem for reactTag: 420016 x: 0, y: 210, width: 454, height: 454 updateLayoutMountItem for reactTag: 420018 x: 454, y: 210, width: 455, height: 454 updateLayoutMountItem for reactTag: 420022 x: 0, y: 690, width: 454, height: 454 updateLayoutMountItem for reactTag: 420024 x: 454, y: 690, width: 455, height: 454 updateLayoutMountItem for reactTag: 420028 x: 0, y: 1171, width: 454, height: 454 updateLayoutMountItem for reactTag: 420030 x: 454, y: 1171, width: 455, height: 454 updateLayoutMountItem for reactTag: 420032 x: 0, y: 1651, width: 0, height: 0 ``` Reviewed By: mdvacca Differential Revision: D12813192 fbshipit-source-id: 450d646af4883ff25184141721351da67b091b7c * Cleanup a bunch of the JS stuff Summary: Stricter flow typing, better naming, modularization with context objects, more extensible, etc. Reviewed By: yungsters Differential Revision: D10443440 fbshipit-source-id: 171358dfb105829b872d6379064ba4bc29ce34de * rename ReactBytecode -> UITemplate Summary: React bytecode is kind of a different thing that sebmarkbage already has in mind so lets keep the namespace separate. Reviewed By: mdvacca Differential Revision: D12896293 fbshipit-source-id: e0f266da6e7a051bcf5defea49b958452342754d * Remove var in Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js (#22126) Summary: Replaces the keywords var with let or const in Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js - [x] Check npm run flow - [x] Check npm run flow-check-ios - [x] Check npm run flow-check-android [GENERAL] [ENHANCEMENT] [Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js] - remove var Pull Request resolved: https://github.com/facebook/react-native/pull/22126 Differential Revision: D12929758 Pulled By: TheSavior fbshipit-source-id: bee9dfb463d197458cb218f39274af5a4d16ce1f * Fabric: Using RuntimeExecutor in concrete EventBeats Summary: Now we use RuntimeExecutor instead of MessageQueue; that's more clear and remove a dependency from Bridge. Reviewed By: sahrens Differential Revision: D12837226 fbshipit-source-id: 0ea3782ce2f49c7f3a91425880863e3b3ea37712 * Fabric: Explicit clearing std::vector after moving from it Summary: Apparently, the standard does not guarantee that the vector is empty after moving from it. So, let's clear it explicitly instead of asserting the emptiness. Reviewed By: sahrens Differential Revision: D12837227 fbshipit-source-id: 85dff6848707f4204f4c79be173064547e83c63e * Fabric: Making jsi::Runtime a part of EventBeat and EventPipe Summary: We double down on JSI in Fabric. So, practically, JSI is now a hard dependency for Fabric. I hope it's for good. Now `jsi::Runtime` is coupled with scheduling via `EventExecuter`, so we have to make `jsi::Runtime` a part of `EventBeat` to proxy runtime reference to bindgings. Reviewed By: sahrens Differential Revision: D12837225 fbshipit-source-id: 98edc33d6a3358e6c2905f2f03ce0004a9ca0503 * Fabric: Removing deprecated leftovers from RCTScheduler and RCTSurfacePresenter Summary: Trivial. We don't use it anymore. Reviewed By: mdvacca Differential Revision: D12876743 fbshipit-source-id: dc979aaea1fef443b8caf2e58d44b0c7aad90246 * Fabric: Some helper classes and functions were moved to uimanager/primitives Summary: Trivial. Reviewed By: mdvacca Differential Revision: D12876747 fbshipit-source-id: a2e72ecb69ffc3787f0d8b432f06b9c9715ac5b1 * Fabric: Introduced ComponentDescriptorRegistry::at() method family Summary: This is more usable (because it allows to use `->` operator) and safe (const-style) methods replacing old `operator[]` methods. Reviewed By: mdvacca Differential Revision: D12876744 fbshipit-source-id: 8ea7398c9777f8be3e88db873ec00915d0761615 * Fabric: A bunch of functions for converting JSI primitives to Fabric and vice-versa Summary: We need to decouple this from actual JSI/UIManagerBinding implementation to make them more maintainable. Reviewed By: sahrens Differential Revision: D12876742 fbshipit-source-id: 30cad69d0a9761e2aa82f31d180e4b5a40cedb61 * Fabric: Introducing UIManagerBinding, a replacement for JSIFabricUIManager Summary: This diff changes how we expose UIManager to JavaScript realm and control ownership of it. This change should improve reliability and a thread-safety. UIManagerBinding is a HostObject which consolidate ownership of UIManager. Now JavaScript's GC controls its lifetime which eliminates the possibility of calling some JS facing methods of UIManager using a dangling pointer. Besides that, all API now imply that if the caller has a reference to jsi::Runtime, it calls the method on the proper thread (it's an implication of RuntimeExecutor design). Reviewed By: sahrens Differential Revision: D12876745 fbshipit-source-id: eb8c70317460df5b14e45031ad15fc6c8e5b5ce3 * Fabric: Making some picky compilers happy Summary: Trivial nits. Reviewed By: mdvacca Differential Revision: D12897927 fbshipit-source-id: 61cec4a070218606d52f05740aacbfae1d2efd31 * TouchEventEmitter: Fix assignment of Y coordinates (#22160) Summary: This patch fixes the the assignment of Y coordinate information in the event payloads in `TouchEventEmitter`, which were inadvertently being assigned X coordinate data. Pull Request resolved: https://github.com/facebook/react-native/pull/22160 Differential Revision: D12943125 Pulled By: shergin fbshipit-source-id: a3fde64c4d6c76784f1a0ac7cae4c0d62f3d4497 * Types for BackHandler Summary: Improve types for BackHandler Reviewed By: benjaffe Differential Revision: D9838175 fbshipit-source-id: 839a5a695b468974aadb7bc0da1a23ef844fdd7f * Fix inline styles in ReactAndroid (#22166) Summary: Fix `react-native/no-inline-styles` eslint warning for ReactAndroid module. Pull Request resolved: https://github.com/facebook/react-native/pull/22166 Differential Revision: D12946925 Pulled By: TheSavior fbshipit-source-id: f4bc0653bd2971e551bc46d89455c006003947c7 * Fix inline styles in IntegrationTests (#22165) Summary: Fix `react-native/no-inline-styles` eslint warning for IntegrationTests module. Pull Request resolved: https://github.com/facebook/react-native/pull/22165 Differential Revision: D12946915 Pulled By: TheSavior fbshipit-source-id: 438bb74cc34dd5893f725e4865568715ce949c3a * Flow strict Slider (#22127) Summary: Related to #22100 Turn on Flow strict mode for Slider. Enhanced event type and props callbacks type defs for Slider. - All flow tests succeed. [GENERAL] [ENHANCEMENT] [Slider.js] - Flow strict mode Pull Request resolved: https://github.com/facebook/react-native/pull/22127 Differential Revision: D12946817 Pulled By: TheSavior fbshipit-source-id: 631391f70c04fddf0bfa6fec92f5cb769a555547 * Flow strict TouchableOpacity (#22146) Summary: Related to #22100 Enhance Flow types for TouchableOpacity specifying Touchable event types and TvParallaxPropertiesType. I had to export TvParallaxPropertiesType from TVViewPropTypes file. There are still 1 any left using requireNativeComponent and a dependency to `Touchable` that need to be addressed to turn Flow to strict mode. I guess `Touchable` is a lot more work since there's no flow annotation and it's still good old Mixin. - All flow tests succeed. [GENERAL] [ENHANCEMENT] [TouchableOpacity.js] - Flow types [GENERAL] [ENHANCEMENT] [TVViewPropTypes.js] - Export type Pull Request resolved: https://github.com/facebook/react-native/pull/22146 Reviewed By: TheSavior Differential Revision: D12927044 Pulled By: RSNara fbshipit-source-id: c63d805699dd58e2fbc4fd1df4ee0c9f87e2336a * Fix inline styles warning in Libraries (#22161) Summary: Fixes `react-native/no-inline-styles` eslint warnings in the `Libraries` module. Pull Request resolved: https://github.com/facebook/react-native/pull/22161 Differential Revision: D12946899 Pulled By: TheSavior fbshipit-source-id: c97ffa50dd90529dabf30a3d2cb09476acc568cb * Allow overriding Metro server host with a system prop Summary: Allow a device to override the host to which to connect to for getting dev bundles, debugging etc. This is read from a system prop so it can be shared across all React Native apps and persists between app installs. Reviewed By: mdvacca Differential Revision: D10842213 fbshipit-source-id: d15b7d0255130090744d60ffb239778cba15e49c * iOS: Attempt to load lazy modules when asked from native Summary: Previously, asking for an instance of NativeModule from the native side gave `nil` if the lazy modules have not been loaded, which is not consistent with the access from JS. This at least attempts to force load the lazy modules when asked from native. p.s. one asks for a module by doing `[bridge moduleForClass:[FooBar class]]`. Reviewed By: spredolac Differential Revision: D12931640 fbshipit-source-id: 15d2dc574067d3386ef921512ce4bc837749dabd * Fix build error caused by -Werror=class-memaccess (#823) Summary: OS: Arch Linux GCC Version: gcc (GCC) 8.2.1 20180831 Clang Version: 6.0.1 (tags/RELEASE_601/final) Build Log Before Fix: command: `buck build //:yoga` ``` Not using buckd because watchman isn't installed. yoga/Yoga.cpp: In function ‘void YGZeroOutLayoutRecursivly(YGNodeRef)’: yoga/Yoga.cpp:1854:51: error: ‘void* memset(void*, int, size_t)’ clearing an object of non-trivial type ‘struct YGLayout’; use assignment or value-initialization instead [-Werror=class-memaccess] memset(&(node->getLayout()), 0, sizeof(YGLayout)); ^ In file included from yoga/YGNode.h:11, from yoga/Utils.h:9, from yoga/Yoga.cpp:13: yoga/YGLayout.h:12:8: note: ‘struct YGLayout’ declared here struct YGLayout { ^~~~~~~~ cc1plus: all warnings being treated as errors Build failed: Command failed with exit code 1. stderr: yoga/Yoga.cpp: In function ‘void YGZeroOutLayoutRecursivly(YGNodeRef)’: yoga/Yoga.cpp:1854:51: error: ‘void* memset(void*, int, size_t)’ clearing an object of non-trivial type ‘struct YGLayout’; use assignment or value-initialization instead [-Werror=class-memaccess] memset(&(node->getLayout()), 0, sizeof(YGLayout)); ^ In file included from yoga/YGNode.h:11, from yoga/Utils.h:9, from yoga/Yoga.cpp:13: yoga/YGLayout.h:12:8: note: ‘struct YGLayout’ declared here struct YGLayout { ^~~~~~~~ cc1plus: all warnings being treated as errors When running <c++ preprocess_and_compile>. When building rule //:yoga#compile-Yoga.cpp.o9b5477b5,default. Parsing buck files: finished in 0.8 sec (100%) Building: finished in 2.2 sec (100%) 10/10 jobs, 1 updated Total time: 3.3 sec ``` Build Log After Fix command: `buck build //:yoga` ``` Not using buckd because watchman isn't installed. Parsing buck files: finished in 0.8 sec (100%) Building: finished in 0.6 sec (100%) 1/1 jobs, 0 updated Total time: 1.6 sec ``` All tests are passing Pull Request resolved: https://github.com/facebook/yoga/pull/823 Reviewed By: davidaurelio Differential Revision: D10486023 Pulled By: passy fbshipit-source-id: e9de734c3ce6c45ea4a8edd5d78206901d85ca84 * Add Yoga JNI bindings to libcoldstart Summary: Yoga's JNI bindings are usually loaded during class loading, and can stall the UI thread. Here, we try to mitigate the problem by adding the bindings to libcoldstart. Reviewed By: michalgr Differential Revision: D12956818 fbshipit-source-id: 9dda5cb6d26c2bae64606bc2d7c98ab8f7c05a30 * console polyfill: pass unsupported messages to original console Summary: Some console methods (like `groupCollapsed` or `clear`) are not supported by console.js polyfill and are not passed to the original console objects. Reviewed By: sahrens Differential Revision: D12900996 fbshipit-source-id: 1b2f487028e418ae934f631996eaaf63abdced82 * Fix IllegalArgumentException when dismissing ReactModalHostView Summary: This diff fixes an IllegalArgumentException when dismissing ReactModalHostView. I wasn't able to reproduce this error because this is likely created by a race condition. Reviewed By: axe-fb Differential Revision: D12916787 fbshipit-source-id: b071ffc4c251f2a613bb1270de005def56818376 * TextInput: Remove PropTypes, NativeMethodsMixin; Convert to ES6 class (#21885) Summary: This pull requests converts `TextInput` to an ES6 class, and in the process removes its usage of `prop-types` and `NativeMethodsMixin`. The code (and some relevant types) for the native components have been moved to `TextInputNativeComponent.js`. The rest of the flow proptypes have been moved to `TextInputTypes.js`. Pull Request resolved: https://github.com/facebook/react-native/pull/21885 Reviewed By: RSNara Differential Revision: D10515754 Pulled By: TheSavior fbshipit-source-id: 5cfb25344385904b37a49582008c2a4b46db809d * Fix internal types on top of TextInput refactor Summary: Types were moved out of TextInput into TextInputTypes for better re-use. Fixing the internal callsites. This isn't much of a worry externally because these types aren't exposed as part of the public API Reviewed By: RSNara Differential Revision: D10517066 fbshipit-source-id: bade4285eafb3d7ab5ab1e4b0730c22d45925509 * Fixing TextInput related jest tests Reviewed By: yungsters Differential Revision: D10519823 fbshipit-source-id: 02368b670953a0275fa6495b0c73ef84403598cb * TextInput add back propTypes Reviewed By: yungsters Differential Revision: D12969854 fbshipit-source-id: c2fe2c46e538f8b5e3ea46257aef70d00bf14364 * React sync for revisions 4773fdf...3ff2c7c Summary: @public This sync includes the following changes: - **[3ff2c7ccd](https://github.com/facebook/react/commit/3ff2c7ccd)**: Invalid actualDuration+treeBaseDuration for hidden+suspended trees (#14065) //<Brian Vaughn>// - **[5afa1c4ed](https://github.com/facebook/react/commit/5afa1c4ed)**: Tag MemoComponent with PerformedWork effectTag for DevTools Profiler (#14141) //<Brian Vaughn>// - **[e27720d7f](https://github.com/facebook/react/commit/e27720d7f)**: [Synchronous Suspense] Reuse deletions from primary tree (#14133) //<Andrew Clark>// - **[aa1ffe4e7](https://github.com/facebook/react/commit/aa1ffe4e7)**: Show deprecated context object warnings usage in ReactDOM server (#14033) //<Dominic Gannaway>// - **[e3a7b9645](https://github.com/facebook/react/commit/e3a7b9645)**: Make react-debug-tools a private package //<Andrew Clark>// - **[ba1984423](https://github.com/facebook/react/commit/ba1984423)**: Update bundle sizes for 16.6.1 release //<Andrew Clark>// - **[b50e63ef5](https://github.com/facebook/react/commit/b50e63ef5)**: Updating package versions for release 16.6.1 //<Andrew Clark>// - **[8f2c89e96](https://github.com/facebook/react/commit/8f2c89e96)**: Make react-debug-tools a private package //<Andrew Clark>// - **[2aecbcd6f](https://github.com/facebook/react/commit/2aecbcd6f)**: "functional component" -> "function component" (#14123) //<locknono>// - **[b4608dd24](https://github.com/facebook/react/commit/b4608dd24)**: Remove unused simulated flag parameter (#14127) //<Nadav Kaner>// - **[3c69a1881](https://github.com/facebook/react/commit/3c69a1881)**: Recover from errors with a boundary in completion phase (#14104) //<Dan Abramov>// - **[b020fb114](https://github.com/facebook/react/commit/b020fb114)**: Check correct commit phase props in fuzz tester (#14129) //<Andrew Clark>// - **[b67c1a2ee](https://github.com/facebook/react/commit/b67c1a2ee)**: Add DEV-only checks for assumption about instance properties (#14128) //<Dan Abramov>// - **[f777d196e](https://github.com/facebook/react/commit/f777d196e)**: Fix lazy() with defaultProps (#14112) //<Dan Abramov>// - **[e4512991c](https://github.com/facebook/react/commit/e4512991c)**: Fix unhiding in IE11 (#14126) //<Sophie Alpert>// - **[affb2b50c](https://github.com/facebook/react/commit/affb2b50c)**: Enable hooks in www test renderer, too //<Andrew Clark>// - **[0a0f503d5](https://github.com/facebook/react/commit/0a0f503d5)**: Enable hooks in www build (#14116) //<Andrew Clark>// - **[600651e68](https://github.com/facebook/react/commit/600651e68)**: Restore the Hooks dispatcher after using SSR (#14105) //<Dan Abramov>// - **[e9a2ec915](https://github.com/facebook/react/commit/e9a2ec915)**: [suspense] Avoid double commit by re-rendering immediately and reusing primary children (#14083) //<Andrew Clark>// - **[9d47143e8](https://github.com/facebook/react/commit/9d47143e8)**: Implement {,un}hideInstance on RN renderer (#14115) //<Sophie Alpert>// - **[ebdb47d2c](https://github.com/facebook/react/commit/ebdb47d2c)**: DCE hooks code when flag is off (#14111) //<Sophie Alpert>// - **[8b87ebf5b](https://github.com/facebook/react/commit/8b87ebf5b)**: Rename .internal tests that aren't using internals (#14109) //<Sophie Alpert>// - **[da04058a9](https://github.com/facebook/react/commit/da04058a9)**: Use Function.prototype.apply in warningWithoutStack (#14107) //<Sophie Alpert>// - **[fd1256a56](https://github.com/facebook/react/commit/fd1256a56)**: Add Debug Tools Package for Introspection of Hooks (#14085) //<Sebastian Markbåge>// - **[b305c4e03](https://github.com/facebook/react/commit/b305c4e03)**: fix(react-dom): Fix crash during server render (#14103) //<Tiago Nunes>// - **[d34d1c3ba](https://github.com/facebook/react/commit/d34d1c3ba)**: react-reconciler: Update README.md (#13953) //<Marcelo Jorge Vieira>// - **[6c404d82a](https://github.com/facebook/react/commit/6c404d82a)**: Bugfix: Add back early return in setOffsets which was removed between 16.4.2 and 16.5.0. Fails in Edge in some scenarios. (#14095) //<einarq>// - **[8eca0eff8](https://github.com/facebook/react/commit/8eca0eff8)**: chore(tests): don't rely on jest fake timers scheduling real timers (#14003) //<Simen Bekkhus>// - **[293fed899](https://github.com/facebook/react/commit/293fed899)**: Warn for bad useEffect return value (#14069) //<Sophie Alpert>// - **[ae196e84b](https://github.com/facebook/react/commit/ae196e84b)**: Rename inputsAreEqual to areHookInputsEqual & move it to shared (#14036) //<Mateusz Burzyński>// - **[c898020e0](https://github.com/facebook/react/commit/c898020e0)**: Warn for forwardRef(memo(...)) (#14070) //<Sophie Alpert>// - **[bf9fadfcf](https://github.com/facebook/react/commit/bf9fadfcf)**: [Hooks] Remove dispatch callbacks (#14037) //<Andrew Clark>// - **[8c67bbf18](https://github.com/facebook/react/commit/8c67bbf18)**: [scheduler] Deadline object -> shouldYield (#14025) //<Andrew Clark>// - **[e02086bfc](https://github.com/facebook/react/commit/e02086bfc)**: Warn about variable number of dependencies //<Andrew Clark>// - **[b92cdef64](https://github.com/facebook/react/commit/b92cdef64)**: Rename ReactHooks test suite //<Andrew Clark>// - **[6efbbe068](https://github.com/facebook/react/commit/6efbbe068)**: Prettier //<Sophie Alpert>// - **[504576306](https://github.com/facebook/react/commit/504576306)**: Swap order of function member in hook union types //<Andrew Clark>// - **[ddbfe2ed5](https://github.com/facebook/react/commit/ddbfe2ed5)**: Add ESLint rule for React Hooks //<Caleb Meredith>// - **[acb489963](https://github.com/facebook/react/commit/acb489963)**: Clear effect tags from a fiber that suspends in non-concurrent mode //<Andrew Clark>// - **[933b64710](https://github.com/facebook/react/commit/933b64710)**: Disable hook update callback (2nd arg to setState/dispatch) //<Andrew Clark>// - **[5fc84efac](https://github.com/facebook/react/commit/5fc84efac)**: Skip updating effect tag when skipping effect //<Sophie Alpert>// - **[9f34eb79a](https://github.com/facebook/react/commit/9f34eb79a)**: Add readContext to ReactPartialRendererHooks //<Alex Taylor>// - **[f7cb9d2b2](https://github.com/facebook/react/commit/f7cb9d2b2)**: Warn about useContext(Consumer|Provider) //<Dan Abramov>// - **[63cc7d2b3](https://github.com/facebook/react/commit/63cc7d2b3)**: Test useContext in pure, forwardRef, and PureComponent //<Dan Abramov>// - **[3a7c6da8d](https://github.com/facebook/react/commit/3a7c6da8d)**: Make effects actually work with memo //<Sophie Alpert>// - **[75a1c2e72](https://github.com/facebook/react/commit/75a1c2e72)**: The Lost Effect, chapter 3 //<Sophie Alpert>// - **[55a4b1f37](https://github.com/facebook/react/commit/55a4b1f37)**: memo supports Hooks //<Sophie Alpert>// - **[30aa4ad55](https://github.com/facebook/react/commit/30aa4ad55)**: The Lost Effect, chapter 2 //<Sophie Alpert>// - **[b772e0e26](https://github.com/facebook/react/commit/b772e0e26)**: "functional component" -> "function component" in hooks error messages //<Sebastian Markbåge>// - **[9e9e3970e](https://github.com/facebook/react/commit/9e9e3970e)**: Warn for Hook set-state on unmounted component //<Sophie Alpert>// - **[6514697f0](https://github.com/facebook/react/commit/6514697f0)**: Make sure deletions don't stop passive effects //<Sophie Alpert>// - **[dd019d34d](https://github.com/facebook/react/commit/dd019d34d)**: Add support for hooks to ReactDOMServer //<Alex Taylor>// - **[11d0781ee](https://github.com/facebook/react/commit/11d0781ee)**: Defer useEffect until after paint //<Andrew Clark>// - **[105f2de54](https://github.com/facebook/react/commit/105f2de54)**: Put hooks behind feature flag //<Andrew Clark>// - **[7bee9fbdd](https://github.com/facebook/react/commit/7bee9fbdd)**: Initial hooks implementation //<Andrew Clark>// - **[37c7fe0a5](https://github.com/facebook/react/commit/37c7fe0a5)**: Update createRoot warning message based on `enableStableConcurrentModeAPIs` (#14017) //<Rauno Freiberg>// - **[95f98a187](https://github.com/facebook/react/commit/95f98a187)**: fix typo (#13955) //<Joseph>// - **[e217f2f1a](https://github.com/facebook/react/commit/e217f2f1a)**: Updated comment for getEventModifierState (#13918) //<Patrick>// - **[275e76e83](https://github.com/facebook/react/commit/275e76e83)**: Enable stable concurrent APIs flag for 16.7 alpha (#13928) //<Brian Vaughn>// - **[8b97a9c36](https://github.com/facebook/react/commit/8b97a9c36)**: Update bundle sizes for 16.6.0 release //<Dan Abramov>// - **[6c29eabf7](https://github.com/facebook/react/commit/6c29eabf7)**: Updating package versions for release 16.6.0 //<Dan Abramov>// - **[d520b358d](https://github.com/facebook/react/commit/d520b358d)**: Revert all package versions to 16.5.2 state //<Dan Abramov>// - **[8f1ec7649](https://github.com/facebook/react/commit/8f1ec7649)**: Bump versions to beta.0 //<Dan Abramov>// - **[5055a83fa](https://github.com/facebook/react/commit/5055a83fa)**: Revert "Revert "Updating dependencies for react-noop-renderer"" //<Dan Abramov>// - **[3e8b4a5b8](https://github.com/facebook/react/commit/3e8b4a5b8)**: Revert "Updating dependencies for react-noop-renderer" //<Brian Vaughn>// - **[d8e03de4a](https://github.com/facebook/react/commit/d8e03de4a)**: [react-cache] Remove `cache` as argument to `read` (#13865) //<Andrew Clark>// - **[fefa1269e](https://github.com/facebook/react/commit/fefa1269e)**: Revert accidentally committed existence check (#13931) //<Andrew Clark>// - **[80a0c05ce](https://github.com/facebook/react/commit/80a0c05ce)**: Removed react-cache from the bundle list for now (#13930) //<BrianVaughn>// - **[915e4eab5](https://github.com/facebook/react/commit/915e4eab5)**: Add "unstable_" prefix to react-cache and jest-react (#13929) //<Brian Vaughn>// - **[cbbc2b6c4](https://github.com/facebook/react/commit/cbbc2b6c4)**: [Synchronous Suspense] Suspending a class outside concurrent mode (#13926) //<Andrew Clark>// - **[4947fcd76](https://github.com/facebook/react/commit/4947fcd76)**: Fix lint (#13923) //<Sebastian Markbåge>// - **[d75c69e0c](https://github.com/facebook/react/commit/d75c69e0c)**: Remove unstable_ prefix from Suspense (#13922) //<Sebastian Markbåge>// - **[c8ef2feda](https://github.com/facebook/react/commit/c8ef2feda)**: Remove redundant word "the" (#13919) //<John Lin>// - **[55444a6f4](https://github.com/facebook/react/commit/55444a6f4)**: Try rendering again if a timed out tree receives an update (#13921) //<Andrew Clark>// - **[04c4f2fce](https://github.com/facebook/react/commit/04c4f2fce)**: [reconciler] ReactFiberNewContext import maxSigned31BitInt twice (#13857) //<yongningfu>// - **[409e472fc](https://github.com/facebook/react/commit/409e472fc)**: Add flow types in ReactControlledComponent (#13669) //<Abdul Rauf>// - **[663835a43](https://github.com/facebook/react/commit/663835a43)**: Add flow types in getEventModifierState (#13909) //<Abdul Rauf>// - **[82710097f](https://github.com/facebook/react/commit/82710097f)**: Add flow types in getNodeForCharacterOffset (#13908) //<Abdul Rauf>// - **[b753f76a7](https://github.com/facebook/react/commit/b753f76a7)**: Fix failing async tests in Node 10 //<Andrew Clark>// - **[b5c0852fd](https://github.com/facebook/react/commit/b5c0852fd)**: Bump version to 16.6.0-beta.0 (#13906) //<Dan Abramov>// - **[769b1f270](https://github.com/facebook/react/commit/769b1f270)**: pure -> memo (#13905) //<Dan Abramov>// - **[8ecd4bd4f](https://github.com/facebook/react/commit/8ecd4bd4f)**: Add support for React.pure in ReactDOMServer (#13855) //<Alex Taylor>// - **[15b11d23f](https://github.com/facebook/react/commit/15b11d23f)**: Allow arbitrary types to be wrapped in pure (#13903) //<Sebastian Markbåge>// - **[e770af7a3](https://github.com/facebook/react/commit/e770af7a3)**: Add back accidentally deleted `break` to prevent fallthrough //<Andrew Clark>// - **[95a313ec0](https://github.com/facebook/react/commit/95a313ec0)**: Unfork Lazy Component Branches (#13902) //<Sebastian Markbåge>// - **[e16cdd5b1](https://github.com/facebook/react/commit/e16cdd5b1)**: Always bail out timed out children even if they receive an update (#13901) //<Andrew Clark>// - **[7268d97d2](https://github.com/facebook/react/commit/7268d97d2)**: Centralize props memoization (#13900) //<Sebastian Markbåge>// - **[0fc044679](https://github.com/facebook/react/commit/0fc044679)**: Class component can suspend without losing state outside concurrent mode (#13899) //<Andrew Clark>// - **[36db53822](https://github.com/facebook/react/commit/36db53822)**: Bugfix for #13886 (#13896) //<Andrew Clark>// - **[6938dcaac](https://github.com/facebook/react/commit/6938dcaac)**: SSR support for class contextType (#13889) //<Sebastian Markbåge>// - **[fa65c58e1](https://github.com/facebook/react/commit/fa65c58e1)**: Add readContext to SSR (#13888) //<Sebastian Markbåge>// - **[d9a3cc070](https://github.com/facebook/react/commit/d9a3cc070)**: React.lazy constructor must return result of a dynamic import (#13886) //<Andrew Clark>// - **[d9659e499](https://github.com/facebook/react/commit/d9659e499)**: Lazy components must use React.lazy (#13885) //<Andrew Clark>// - **[0648ca618](https://github.com/facebook/react/commit/0648ca618)**: Revert "React.pure automatically forwards ref" (#13887) //<Sophie Alpert>// - **[4dd772ac1](https://github.com/facebook/react/commit/4dd772ac1)**: Prettier :( //<Andrew Clark>// - **[98bab66c3](https://github.com/facebook/react/commit/98bab66c3)**: Fix lint //<Andrew Clark>// - **[8ced545e3](https://github.com/facebook/react/commit/8ced545e3)**: Suspense component does not capture if `fallback` is not defined (#13879) //<Andrew Clark>// - **[b738ced47](https://github.com/facebook/react/commit/b738ced47)**: Remove render prop option from Suspense (#13880) //<Andrew Clark>// - **[55b827942](https://github.com/facebook/react/commit/55b827942)**: Strict mode and default mode should have same Suspense semantics (#13882) //<Andrew Clark>// - **[dac9202a9](https://github.com/facebook/react/commit/dac9202a9)**: Hide timed-out children instead of deleting them so their state ispreserved (#13823) //<Andrew Clark>// - **[4f0bd4590](https://github.com/facebook/react/commit/4f0bd4590)**: Replacement of old links, by the new ones of the documentation. (#13871) //<Pablo Javier D. A>// - **[7685b55d2](https://github.com/facebook/react/commit/7685b55d2)**: Remove unstable_read() in favor of direct dispatcher call (#13861)//<Dan Abramov>// - **[21a79a1d9](https://github.com/facebook/react/commit/21a79a1d9)**: [schedule] Call ensureHostCallbackIsScheduled without args (#13852) //<Trivikram Kamat>// - **[9ea4bc6ed](https://github.com/facebook/react/commit/9ea4bc6ed)**: Fix false positive context warning when using an old React (#13850) //<Dan Abramov>// Release Notes: [GENERAL] [FEATURE] [React] - React sync for revisions 4773fdf...3ff2c7c Reviewed By: sebmarkbage Differential Revision: D12955345 fbshipit-source-id: db12076758fe85a519074ca4fe3aa5ede6f4fd49 * Fix args passed when measuring Androidwitch Summary: The first argument to `View.MeasureSpec.makeMeasureSpec` should be positive, but was being passed WRAP_CONTENT, which is negative. This diff fixes that. Reviewed By: achen1 Differential Revision: D6601683 fbshipit-source-id: 6d8499830f7b6da40848bab77d5ddbbb8a6fe44f * Enable unused-private-field warning (#13450) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/13450 Pull Request resolved: https://github.com/facebook/react-native/pull/22065 This diff enables -Wunused-private-field clang warning for Android builds and fixes all broken targets. Reviewed By: gkmhub Differential Revision: D12881793 fbshipit-source-id: 515555661e137be9e7b20eac9b5bdcb549d6a094 * Update oss lockfile Summary: Updating lockfile to fix open source sanity test. Reviewed By: hramos Differential Revision: D12982917 fbshipit-source-id: 1e2f0abadf6e76b67215b70b8c71dea1c2c05bff * Replace String with constants for Module names in Fb4aCoreInfraPackage Summary: Using constants is safer than using strings. More details at D12843649 Reviewed By: sahrens Differential Revision: D8226521 fbshipit-source-id: 4c78c8dfe0bd658f46c8f81e50ceae9299fc6f3c * Give eagerly loaded modules precedent over lazily loaded one. Summary: Before lazily-loading code existed, modules that were already loaded into memory took precedent over modules that were additionally registered. With lazily loading modules, instead of giving eagerly loaded modules precdence, it throws a redbox. This diff fixes that behavior. Reviewed By: PeteTheHeat Differential Revision: D12983805 fbshipit-source-id: fe4fcf35d5c2ca6f9f4e3f0d1d8c2ca35468fb1b * Stop mounting of Views when there is an exception in Native Summary: This diff fixes exception handling for Mounting of views, as soon as there is an exception we stop the mounting of views because from that point the UI View tree is going to be inconsistent with the ReactShadow tree from C++. We also stop the mounting of views when the host is paused, this allows us to not keep mounting views Reviewed By: shergin Differential Revision: D10510334 fbshipit-source-id: b0d3eba580ff92d8b8400244ec9d7c266db42ff9 * Temporary disable AndroidSwipeRefreshLayout Summary: AndroidSwipeRefreshLayout is rendered in the "Marketplace Your Items" screen altough it is disabled. This diff just temporary implements the AndroidSwipeRefreshLayout component as a View (similar to the iOS counterpart RefreshControl). Reviewed By: shergin Differential Revision: D10524049 fbshipit-source-id: 5df38fbdf1339b3857138d82a7100ec7f15854b3 * Force navigation to use root tag Summary: This diff ensures that JS uses rootTags during navigation. A redbox will be rendered in debug mode when a non-rootTag is used during navigation. This change enables proper navigation for Fabric. Reviewed By: shergin Differential Revision: D10855198 fbshipit-source-id: a82aaa706cd62ce92143fa86d0a422c1ae439a50 * Add systrace support in Fabric C++ Summary: This diff adds systrace support in the C++ side of Fabric Reviewed By: ejanzer Differential Revision: D12861373 fbshipit-source-id: 0291f3e406f239bbef3686ac0bba6e9f1c7eac57 * Refactor 'induce' of events in Fabric Android Summary: This diff refactors the exeuction of 'AsyncEventBeat.induce()' as part of the delivery of events of Fabric Android implementation. The first part of the refactor moves the exeuction of onBatchEventDispatched out of the synchronization block for mEventsToDispatchLock. This lock is accessed from the UI Thread and executing the induce inside this synchronization block will affect UI, The second part of the refactor is to ensure that the exeuction of the C++ method AsyncEventBeat.induce() always happen in the JS Thread. Reviewed By: shergin Differential Revision: D12861387 fbshipit-source-id: e1cd03467274a1c5fcd04b0ac7efdbe7169b14c3 * Expose rootTag / surfaceId as part of schedulerDidRequestPreliminaryViewAllocation method Summary: This diff exposes rootTag as part of SchedulerDelegate.schedulerDidRequestPreliminaryViewAllocation(). This will be necessary to be able to pool views per Surface in Android Reviewed By: shergin Differential Revision: D12875656 fbshipit-source-id: d2a8c1f9bcc6b14c17b34bf59085da44ae3c3416 * Switch to synchronous strategy for unprotect Summary: Older versions of JSC (ios 11 and before) have a bug which I believe the ProtectionQueue mechanism tickles: https://bugs.webkit.org/show_bug.cgi?id=186827 This removes the ProtectionQueue and replaces it with an atomic flag to avoid calling unprotect after VM shutdown. This also fixes a race condition in shutdown. Reviewed By: danzimm Differential Revision: D12969953 fbshipit-source-id: fa3a14f3207be67a987ac3cf0fc1c9ce88837b0b * Fix inline styles eslint warnings for examples (#22123) Summary: Fixes `react-native/no-inline-styles` warning for several examples. I'm limiting the size of this PR to make it simpler to review. Pull Request resolved: https://github.com/facebook/react-native/pull/22123 Reviewed By: RSNara Differential Revision: D12929701 Pulled By: TheSavior fbshipit-source-id: 7a976f2208b557fcfda46d5b586b30652c550eb2 * Back out TextInput es6 conversion Summary: This was failing due to issues with refs, which we were able to fix and then finally due to some jest tests that were failing due to things being null that shouldn't be which I couldn't easily figure out. Reverting the stack until we can actually solve it, hopefully with additional tests. This was created by running: ``` $ hg backout c2fe2c46e538 fetching tree '' b9bbfc1925c6daf85ba3227d12f177aca9c0c054, based on 4257c76aefa84aaa17279e65aa7ca1174f4401e7, found via 02368b670953 connected to hg015.frc2.facebook.com 60 trees fetched over 2.91s fetching tree '' c3c304df13399f0f1a29a668242da454fc1d8a97, based on b9bbfc1925c6daf85ba3227d12f177aca9c0c054, found via c2fe2c46e538 7 trees fetched over 0.03s 1 files updated, 0 files merged, 0 files removed, 0 files unresolved commit 4270328:50a65c5c2e27 backs out commit 4266783:c2fe2c46e538 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over 0.57s [twsvcscm@sandcastle3265.ftw1 /data/sandcastle/boxes/instance-ide/xplat/js (50a65c5)]$ hg backout 02368b670953 fetching tree '' a46c8ca065f5b92cf375d7ed899fc5ca268ba4da, based on b9bbfc1925c6daf85ba3227d12f177aca9c0c054, found via bade4285eafb connected to hg024.frc2.facebook.com 27 trees fetched over 3.21s fetching tree '' 361548a090e81d18bab6f4fc16036c518cb4d7c1, based on a46c8ca065f5b92cf375d7ed899fc5ca268ba4da, found via bade4285eafb 41 trees fetched over 0.10s merging react-native-github/Libraries/Components/TextInput/TextInput.js 8 files updated, 1 files merged, 0 files removed, 0 files unresolved commit 4270329:dbaca0daf0ac backs out commit 4266782:02368b670953 14 files fetched over 7 fetches - (14 misses, 0.00% hit ratio) over 1.72s [twsvcscm@sandcastle3265.ftw1 /data/sandcastle/boxes/instance-ide/xplat/js (dbaca0d)]$ hg backout bade4285eafb connected to hg030.frc2.facebook.com fetching tree '' 1b4a17164fdbfcad40139e46da4a9bfa8aa8def3, based on 361548a090e81d18bab6f4fc16036c518cb4d7c1, found via 5cfb25344385 7 trees fetched over 0.06s merging react-native-github/Libraries/Components/TextInput/TextInput.js 20 files updated, 1 files merged, 0 files removed, 0 files unresolved commit 4270330:2951740e5b32 backs out commit 4266781:bade4285eafb 33 files fetched over 14 fetches - (33 misses, 0.00% hit ratio) over 4.50s [twsvcscm@sandcastle3265.ftw1 /data/sandcastle/boxes/instance-ide/xplat/js (2951740)]$ hg backout 5cfb25344385 connected to hg035.frc2.facebook.com merging react-native-github/Libraries/Components/TextInput/TextInput.js 0 files updated, 1 files merged, 2 files removed, 0 files unresolved commit 4270331:fffb4629a397 backs out commit 4266780:5cfb25344385 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over 4.03s ``` Reviewed By: yungsters Differential Revision: D12989604 fbshipit-source-id: 703a7c9c1f5bdd710077e515bdff06fdb34502ec * `Removing UIManager.measureViewsInRect()` Summary: It does not supported on Android and nobody uses it. I could find only one use cases: Very old versin of `SectionList` library (4 years ago). Reviewed By: sahrens Differential Revision: D12972361 fbshipit-source-id: a5dfef5e877e996adec2d4941417b4a2e727cfb7 * Turn off static linking for cxxreact:bridge Summary: Remove `force_static=true` from cxxreact:bridge, add dependencies to targets that were pulling them in from a statically linked cxxreact:bridge. Reviewed By: mhorowitz Differential Revision: D12914861 fbshipit-source-id: ff335b70e80d014538a8d5dc8c0bb7b095e7940e * Adds support for `publicPath` to enable serving assets from different locations. (#299) Summary:  **Summary**  This is an updated followup from https://github.com/facebook/metro/pull/280, which we would still need to address the following assumptions about `/assets/`: https://github.com/facebook/metro/blob/e7deea19001d903a47868bb1fe6456bdc4b585e7/packages/metro/src/Server.js#L332 https://github.com/facebook/metro/blob/e7deea19001d903a47868bb1fe6456bdc4b585e7/packages/metro/src/Server.js#L379 https://github.com/facebook/metro/blob/e7deea19001d903a47868bb1fe6456bdc4b585e7/packages/metro/src/Server.js#L385 As pointed out by gdborton, there isn't currently a way to make this a configurable option. I am not certain how to find a proper workaround for `processRequest`. We found a temporary solution to have our express app pick up serving the assets from a publicPath as a middleware. But the change in this PR is still necessary to get it working fully. **Test plan**  - Will add tests once we figure out a comprehensive solution Pull Request resolved: https://github.com/facebook/metro/pull/299 Reviewed By: rafeca Differential Revision: D12939229 Pulled By: mjesun fbshipit-source-id: 769c23468c5ac434f8319e5e7caaf46dd6453f2d * Fix Shimmer in Fabric Android Summary: ShimmeringView is called: RTShimmeringView Android and ShimmeringView in iOS. This diff adds a mapping into ComponentDescriptorRegistry to temporary enable ShimmeringView component until we can unify names in JS. Reviewed By: sahrens Differential Revision: D12991351 fbshipit-source-id: 48e08b8021116221ccfd5f2512c76f65145baa2a * Use static constants instead of strings when referring to View Managers and Native Modules Summary: Using strings to refer to Native Modules and View Managers in ReactPackages are prone to error. The compiler replaces the constants with the actual strings anyway, so using constants gives us better type safety Reviewed By: achen1 Differential Revision: D12843649 fbshipit-source-id: 7a7c6c854c8689193f40df92dc8426a3b37f82c8 * Fabric: Making EventEmitter::setEnabled additive Summary: In the previous approach, when event emitter got disabled for split second, we could lose the EventTarget because JS GC can collect it before we re-enable this. Now we "over-enable" this first, and "under-disable" later. Reviewed By: mdvacca Differential Revision: D12990112 fbshipit-source-id: 4e3c0c0e05f03509ec72ca570f59ce16597353f0 * Add copyright header into ContextUtils class Summary: Trivial diff to include copyright header into ContextUtils class Reviewed By: achen1 Differential Revision: D13001556 fbshipit-source-id: 439f25647a094485381637ea2b59f62962b9c1ac * Add another guard to lazilyLoadView Summary: it's possible that moduleForName won't return anything, so we should return. Created from Diffusion's 'Open in Editor' feature. Reviewed By: spredolac Differential Revision: D12963342 fbshipit-source-id: c059595a68bfcaa38221e05fb62d70cc29887ca7 * iOS: ignore double registration of lazy modules with chrome attached Summary: Depending on when Chrome debugger is attached, modules may get double registered. Simply ignore it for this case. The redbox was not a fatal error, which can be dismissed. Reviewed By: shergin Differential Revision: D12996107 fbshipit-source-id: 292f63102337077848842ca46b3daed08b1cae12 * Fix ReactInstanceManager deadlock Summary: D12829677 introduced a deadlock where onHostResume holds the lock on `moveToResumedLifecycleState()` then waits for the `mReactContext` lock, but at the same time setupReactContext holds the `mReactContext` lock and waits for `moveToResumedLifecycleState()` https://our.intern.facebook.com/intern/everpaste/?handle=GAgXFgLQH1ZlQikBAMQzo2LZ6h9TbiAxAAAz. The purpose of the previous diff was to make sure that detachRootoView and setupReactContext did not interfere with each other, and implemented that by blocking on mReactContext. Since this overloads the usage of mReactContext, let's use a different lock `mAttachedRootViews` to implement this behavior instead Reviewed By: mdvacca Differential Revision: D12989555 fbshipit-source-id: c12e5fd9c5fa4c2037167e9400dc0c1578e38959 * Use nativeQPLTimestamp for InitializeCore marker point Summary: It seems like `nativePerformanceNow` might not be getting installed in time to be used by InitializeCore on Android. Using PerformanceLogger.currentTimestamp instead, which uses nativeQPLTimestamp (which is what we should be using anyway) Reviewed By: alexeylang Differential Revision: D12875187 fbshipit-source-id: 6eda5d2ed7948ba48c63f76b40b2014511c32494 * Add a marker to indicate when JS thread priority is lowered Summary: When RN starts up, it lowers the default priority of the JS thread. This diff sets a point to see when the JS thread priority is lowered. In subsequent diffs, we will be able to use this marker to play around with bumping the priority of the JS thread till TTI is done. Reviewed By: alexeylang Differential Revision: D8965457 fbshipit-source-id: 87cb1e3d3b370af183f388c411fd9a87a6cba250 * Fix ReactRootView attachRootView race condition Summary: Yet another issue with mAttachedRootViews. Every time at…

@public

Summary: @public This sync includes the following changes: - **[bf9fadfcf](facebook/react@bf9fadfcf)**: [Hooks] Remove dispatch callbacks (facebook#14037) //<Andrew Clark>// - **[8c67bbf18](facebook/react@8c67bbf18)**: [scheduler] Deadline object -> shouldYield (facebook#14025) //<Andrew Clark>// - **[e02086bfc](facebook/react@e02086bfc)**: Warn about variable number of dependencies //<Andrew Clark>// - **[b92cdef64](facebook/react@b92cdef64)**: Rename ReactHooks test suite //<Andrew Clark>// - **[6efbbe068](facebook/react@6efbbe068)**: Prettier //<Sophie Alpert>// - **[504576306](facebook/react@504576306)**: Swap order of function member in hook union types //<Andrew Clark>// - **[ddbfe2ed5](facebook/react@ddbfe2ed5)**: Add ESLint rule for React Hooks //<Caleb Meredith>// - **[acb489963](facebook/react@acb489963)**: Clear effect tags from a fiber that suspends in non-concurrent mode //<Andrew Clark>// - **[933b64710](facebook/react@933b64710)**: Disable hook update callback (2nd arg to setState/dispatch) //<Andrew Clark>// - **[5fc84efac](facebook/react@5fc84efac)**: Skip updating effect tag when skipping effect //<Sophie Alpert>// - **[9f34eb79a](facebook/react@9f34eb79a)**: Add readContext to ReactPartialRendererHooks //<Alex Taylor>// - **[f7cb9d2b2](facebook/react@f7cb9d2b2)**: Warn about useContext(Consumer|Provider) //<Dan Abramov>// - **[63cc7d2b3](facebook/react@63cc7d2b3)**: Test useContext in pure, forwardRef, and PureComponent //<Dan Abramov>// - **[3a7c6da8d](facebook/react@3a7c6da8d)**: Make effects actually work with memo //<Sophie Alpert>// - **[75a1c2e72](facebook/react@75a1c2e72)**: The Lost Effect, chapter 3 //<Sophie Alpert>// - **[55a4b1f37](facebook/react@55a4b1f37)**: memo supports Hooks //<Sophie Alpert>// - **[30aa4ad55](facebook/react@30aa4ad55)**: The Lost Effect, chapter 2 //<Sophie Alpert>// - **[b772e0e26](facebook/react@b772e0e26)**: "functional component" -> "function component" in hooks error messages //<Sebastian Markbåge>// - **[9e9e3970e](facebook/react@9e9e3970e)**: Warn for Hook set-state on unmounted component //<Sophie Alpert>// - **[6514697f0](facebook/react@6514697f0)**: Make sure deletions don't stop passive effects //<Sophie Alpert>// - **[dd019d34d](facebook/react@dd019d34d)**: Add support for hooks to ReactDOMServer //<Alex Taylor>// - **[11d0781ee](facebook/react@11d0781ee)**: Defer useEffect until after paint //<Andrew Clark>// - **[105f2de54](facebook/react@105f2de54)**: Put hooks behind feature flag //<Andrew Clark>// - **[7bee9fbdd](facebook/react@7bee9fbdd)**: Initial hooks implementation //<Andrew Clark>// - **[37c7fe0a5](facebook/react@37c7fe0a5)**: Update createRoot warning message based on `enableStableConcurrentModeAPIs` (facebook#14017) //<Rauno Freiberg>// - **[95f98a187](facebook/react@95f98a187)**: fix typo (facebook#13955) //<Joseph>// - **[e217f2f1a](facebook/react@e217f2f1a)**: Updated comment for getEventModifierState (facebook#13918) //<Patrick>// - **[275e76e83](facebook/react@275e76e83)**: Enable stable concurrent APIs flag for 16.7 alpha (facebook#13928) //<Brian Vaughn>// - **[8b97a9c36](facebook/react@8b97a9c36)**: Update bundle sizes for 16.6.0 release //<Dan Abramov>// - **[6c29eabf7](facebook/react@6c29eabf7)**: Updating package versions for release 16.6.0 //<Dan Abramov>// - **[d520b358d](facebook/react@d520b358d)**: Revert all package versions to 16.5.2 state //<Dan Abramov>// - **[8f1ec7649](facebook/react@8f1ec7649)**: Bump versions to beta.0 //<Dan Abramov>// - **[5055a83fa](facebook/react@5055a83fa)**: Revert "Revert "Updating dependencies for react-noop-renderer"" //<Dan Abramov>// - **[3e8b4a5b8](facebook/react@3e8b4a5b8)**: Revert "Updating dependencies for react-noop-renderer" //<Brian Vaughn>// - **[d8e03de4a](facebook/react@d8e03de4a)**: [react-cache] Remove `cache` as argument to `read` (facebook#13865) //<Andrew Clark>// - **[fefa1269e](facebook/react@fefa1269e)**: Revert accidentally committed existence check (facebook#13931) //<Andrew Clark>// - **[80a0c05ce](facebook/react@80a0c05ce)**: Removed react-cache from the bundle list for now (facebook#13930) //<BrianVaughn>// - **[915e4eab5](facebook/react@915e4eab5)**: Add "unstable_" prefix to react-cache and jest-react (facebook#13929) //<Brian Vaughn>// - **[cbbc2b6c4](facebook/react@cbbc2b6c4)**: [Synchronous Suspense] Suspending a class outside concurrent mode (facebook#13926) //<Andrew Clark>// - **[4947fcd76](facebook/react@4947fcd76)**: Fix lint (facebook#13923) //<Sebastian Markbåge>// - **[d75c69e0c](facebook/react@d75c69e0c)**: Remove unstable_ prefix from Suspense (facebook#13922) //<Sebastian Markbåge>// - **[c8ef2feda](facebook/react@c8ef2feda)**: Remove redundant word "the" (facebook#13919) //<John Lin>// - **[55444a6f4](facebook/react@55444a6f4)**: Try rendering again if a timed out tree receives an update (facebook#13921) //<Andrew Clark>// - **[04c4f2fce](facebook/react@04c4f2fce)**: [reconciler] ReactFiberNewContext import maxSigned31BitInt twice (facebook#13857) //<yongningfu>// - **[409e472fc](facebook/react@409e472fc)**: Add flow types in ReactControlledComponent (facebook#13669) //<Abdul Rauf>// - **[663835a43](facebook/react@663835a43)**: Add flow types in getEventModifierState (facebook#13909) //<Abdul Rauf>// - **[82710097f](facebook/react@82710097f)**: Add flow types in getNodeForCharacterOffset (facebook#13908) //<Abdul Rauf>// - **[b753f76a7](facebook/react@b753f76a7)**: Fix failing async tests in Node 10 //<Andrew Clark>// - **[b5c0852fd](facebook/react@b5c0852fd)**: Bump version to 16.6.0-beta.0 (facebook#13906) //<Dan Abramov>// - **[769b1f270](facebook/react@769b1f270)**: pure -> memo (facebook#13905) //<Dan Abramov>// - **[8ecd4bd4f](facebook/react@8ecd4bd4f)**: Add support for React.pure in ReactDOMServer (facebook#13855) //<Alex Taylor>// - **[15b11d23f](facebook/react@15b11d23f)**: Allow arbitrary types to be wrapped in pure (facebook#13903) //<Sebastian Markbåge>// - **[e770af7a3](facebook/react@e770af7a3)**: Add back accidentally deleted `break` to prevent fallthrough //<Andrew Clark>// - **[95a313ec0](facebook/react@95a313ec0)**: Unfork Lazy Component Branches (facebook#13902) //<Sebastian Markbåge>// - **[e16cdd5b1](facebook/react@e16cdd5b1)**: Always bail out timed out children even if they receive an update (facebook#13901) //<Andrew Clark>// - **[7268d97d2](facebook/react@7268d97d2)**: Centralize props memoization (facebook#13900) //<Sebastian Markbåge>// - **[0fc044679](facebook/react@0fc044679)**: Class component can suspend without losing state outside concurrent mode (facebook#13899) //<Andrew Clark>// - **[36db53822](facebook/react@36db53822)**: Bugfix for facebook#13886 (facebook#13896) //<Andrew Clark>// - **[6938dcaac](facebook/react@6938dcaac)**: SSR support for class contextType (facebook#13889) //<Sebastian Markbåge>// - **[fa65c58e1](facebook/react@fa65c58e1)**: Add readContext to SSR (facebook#13888) //<Sebastian Markbåge>// - **[d9a3cc070](facebook/react@d9a3cc070)**: React.lazy constructor must return result of a dynamic import (facebook#13886) //<Andrew Clark>// - **[d9659e499](facebook/react@d9659e499)**: Lazy components must use React.lazy (facebook#13885) //<Andrew Clark>// - **[0648ca618](facebook/react@0648ca618)**: Revert "React.pure automatically forwards ref" (facebook#13887) //<Sophie Alpert>// - **[4dd772ac1](facebook/react@4dd772ac1)**: Prettier :( //<Andrew Clark>// - **[98bab66c3](facebook/react@98bab66c3)**: Fix lint //<Andrew Clark>// - **[8ced545e3](facebook/react@8ced545e3)**: Suspense component does not capture if `fallback` is not defined (facebook#13879) //<Andrew Clark>// - **[b738ced47](facebook/react@b738ced47)**: Remove render prop option from Suspense (facebook#13880) //<Andrew Clark>// - **[55b827942](facebook/react@55b827942)**: Strict mode and default mode should have same Suspense semantics (facebook#13882) //<Andrew Clark>// - **[dac9202a9](facebook/react@dac9202a9)**: Hide timed-out children instead of deleting them so their state ispreserved (facebook#13823) //<Andrew Clark>// - **[4f0bd4590](facebook/react@4f0bd4590)**: Replacement of old links, by the new ones of the documentation. (facebook#13871) //<Pablo Javier D. A>// - **[7685b55d2](facebook/react@7685b55d2)**: Remove unstable_read() in favor of direct dispatcher call (facebook#13861)//<Dan Abramov>// - **[21a79a1d9](facebook/react@21a79a1d9)**: [schedule] Call ensureHostCallbackIsScheduled without args (facebook#13852) //<Trivikram Kamat>// - **[9ea4bc6ed](facebook/react@9ea4bc6ed)**: Fix false positive context warning when using an old React (facebook#13850) //<Dan Abramov>// Release Notes: [GENERAL] [FEATURE] [React] - React sync for revisions 4773fdf...bf9fadf Reviewed By: arcanis Differential Revision: D12850275 fbshipit-source-id: b6d5c61a044c970c04c2ff3370fa77222afd1eb1

@public

Summary: @public This sync includes the following changes: - **[3ff2c7ccd](facebook/react@3ff2c7ccd)**: Invalid actualDuration+treeBaseDuration for hidden+suspended trees (facebook#14065) //<Brian Vaughn>// - **[5afa1c4ed](facebook/react@5afa1c4ed)**: Tag MemoComponent with PerformedWork effectTag for DevTools Profiler (facebook#14141) //<Brian Vaughn>// - **[e27720d7f](facebook/react@e27720d7f)**: [Synchronous Suspense] Reuse deletions from primary tree (facebook#14133) //<Andrew Clark>// - **[aa1ffe4e7](facebook/react@aa1ffe4e7)**: Show deprecated context object warnings usage in ReactDOM server (facebook#14033) //<Dominic Gannaway>// - **[e3a7b9645](facebook/react@e3a7b9645)**: Make react-debug-tools a private package //<Andrew Clark>// - **[ba1984423](facebook/react@ba1984423)**: Update bundle sizes for 16.6.1 release //<Andrew Clark>// - **[b50e63ef5](facebook/react@b50e63ef5)**: Updating package versions for release 16.6.1 //<Andrew Clark>// - **[8f2c89e96](facebook/react@8f2c89e96)**: Make react-debug-tools a private package //<Andrew Clark>// - **[2aecbcd6f](facebook/react@2aecbcd6f)**: "functional component" -> "function component" (facebook#14123) //<locknono>// - **[b4608dd24](facebook/react@b4608dd24)**: Remove unused simulated flag parameter (facebook#14127) //<Nadav Kaner>// - **[3c69a1881](facebook/react@3c69a1881)**: Recover from errors with a boundary in completion phase (facebook#14104) //<Dan Abramov>// - **[b020fb114](facebook/react@b020fb114)**: Check correct commit phase props in fuzz tester (facebook#14129) //<Andrew Clark>// - **[b67c1a2ee](facebook/react@b67c1a2ee)**: Add DEV-only checks for assumption about instance properties (facebook#14128) //<Dan Abramov>// - **[f777d196e](facebook/react@f777d196e)**: Fix lazy() with defaultProps (facebook#14112) //<Dan Abramov>// - **[e4512991c](facebook/react@e4512991c)**: Fix unhiding in IE11 (facebook#14126) //<Sophie Alpert>// - **[affb2b50c](facebook/react@affb2b50c)**: Enable hooks in www test renderer, too //<Andrew Clark>// - **[0a0f503d5](facebook/react@0a0f503d5)**: Enable hooks in www build (facebook#14116) //<Andrew Clark>// - **[600651e68](facebook/react@600651e68)**: Restore the Hooks dispatcher after using SSR (facebook#14105) //<Dan Abramov>// - **[e9a2ec915](facebook/react@e9a2ec915)**: [suspense] Avoid double commit by re-rendering immediately and reusing primary children (facebook#14083) //<Andrew Clark>// - **[9d47143e8](facebook/react@9d47143e8)**: Implement {,un}hideInstance on RN renderer (facebook#14115) //<Sophie Alpert>// - **[ebdb47d2c](facebook/react@ebdb47d2c)**: DCE hooks code when flag is off (facebook#14111) //<Sophie Alpert>// - **[8b87ebf5b](facebook/react@8b87ebf5b)**: Rename .internal tests that aren't using internals (facebook#14109) //<Sophie Alpert>// - **[da04058a9](facebook/react@da04058a9)**: Use Function.prototype.apply in warningWithoutStack (facebook#14107) //<Sophie Alpert>// - **[fd1256a56](facebook/react@fd1256a56)**: Add Debug Tools Package for Introspection of Hooks (facebook#14085) //<Sebastian Markbåge>// - **[b305c4e03](facebook/react@b305c4e03)**: fix(react-dom): Fix crash during server render (facebook#14103) //<Tiago Nunes>// - **[d34d1c3ba](facebook/react@d34d1c3ba)**: react-reconciler: Update README.md (facebook#13953) //<Marcelo Jorge Vieira>// - **[6c404d82a](facebook/react@6c404d82a)**: Bugfix: Add back early return in setOffsets which was removed between 16.4.2 and 16.5.0. Fails in Edge in some scenarios. (facebook#14095) //<einarq>// - **[8eca0eff8](facebook/react@8eca0eff8)**: chore(tests): don't rely on jest fake timers scheduling real timers (facebook#14003) //<Simen Bekkhus>// - **[293fed899](facebook/react@293fed899)**: Warn for bad useEffect return value (facebook#14069) //<Sophie Alpert>// - **[ae196e84b](facebook/react@ae196e84b)**: Rename inputsAreEqual to areHookInputsEqual & move it to shared (facebook#14036) //<Mateusz Burzyński>// - **[c898020e0](facebook/react@c898020e0)**: Warn for forwardRef(memo(...)) (facebook#14070) //<Sophie Alpert>// - **[bf9fadfcf](facebook/react@bf9fadfcf)**: [Hooks] Remove dispatch callbacks (facebook#14037) //<Andrew Clark>// - **[8c67bbf18](facebook/react@8c67bbf18)**: [scheduler] Deadline object -> shouldYield (facebook#14025) //<Andrew Clark>// - **[e02086bfc](facebook/react@e02086bfc)**: Warn about variable number of dependencies //<Andrew Clark>// - **[b92cdef64](facebook/react@b92cdef64)**: Rename ReactHooks test suite //<Andrew Clark>// - **[6efbbe068](facebook/react@6efbbe068)**: Prettier //<Sophie Alpert>// - **[504576306](facebook/react@504576306)**: Swap order of function member in hook union types //<Andrew Clark>// - **[ddbfe2ed5](facebook/react@ddbfe2ed5)**: Add ESLint rule for React Hooks //<Caleb Meredith>// - **[acb489963](facebook/react@acb489963)**: Clear effect tags from a fiber that suspends in non-concurrent mode //<Andrew Clark>// - **[933b64710](facebook/react@933b64710)**: Disable hook update callback (2nd arg to setState/dispatch) //<Andrew Clark>// - **[5fc84efac](facebook/react@5fc84efac)**: Skip updating effect tag when skipping effect //<Sophie Alpert>// - **[9f34eb79a](facebook/react@9f34eb79a)**: Add readContext to ReactPartialRendererHooks //<Alex Taylor>// - **[f7cb9d2b2](facebook/react@f7cb9d2b2)**: Warn about useContext(Consumer|Provider) //<Dan Abramov>// - **[63cc7d2b3](facebook/react@63cc7d2b3)**: Test useContext in pure, forwardRef, and PureComponent //<Dan Abramov>// - **[3a7c6da8d](facebook/react@3a7c6da8d)**: Make effects actually work with memo //<Sophie Alpert>// - **[75a1c2e72](facebook/react@75a1c2e72)**: The Lost Effect, chapter 3 //<Sophie Alpert>// - **[55a4b1f37](facebook/react@55a4b1f37)**: memo supports Hooks //<Sophie Alpert>// - **[30aa4ad55](facebook/react@30aa4ad55)**: The Lost Effect, chapter 2 //<Sophie Alpert>// - **[b772e0e26](facebook/react@b772e0e26)**: "functional component" -> "function component" in hooks error messages //<Sebastian Markbåge>// - **[9e9e3970e](facebook/react@9e9e3970e)**: Warn for Hook set-state on unmounted component //<Sophie Alpert>// - **[6514697f0](facebook/react@6514697f0)**: Make sure deletions don't stop passive effects //<Sophie Alpert>// - **[dd019d34d](facebook/react@dd019d34d)**: Add support for hooks to ReactDOMServer //<Alex Taylor>// - **[11d0781ee](facebook/react@11d0781ee)**: Defer useEffect until after paint //<Andrew Clark>// - **[105f2de54](facebook/react@105f2de54)**: Put hooks behind feature flag //<Andrew Clark>// - **[7bee9fbdd](facebook/react@7bee9fbdd)**: Initial hooks implementation //<Andrew Clark>// - **[37c7fe0a5](facebook/react@37c7fe0a5)**: Update createRoot warning message based on `enableStableConcurrentModeAPIs` (facebook#14017) //<Rauno Freiberg>// - **[95f98a187](facebook/react@95f98a187)**: fix typo (facebook#13955) //<Joseph>// - **[e217f2f1a](facebook/react@e217f2f1a)**: Updated comment for getEventModifierState (facebook#13918) //<Patrick>// - **[275e76e83](facebook/react@275e76e83)**: Enable stable concurrent APIs flag for 16.7 alpha (facebook#13928) //<Brian Vaughn>// - **[8b97a9c36](facebook/react@8b97a9c36)**: Update bundle sizes for 16.6.0 release //<Dan Abramov>// - **[6c29eabf7](facebook/react@6c29eabf7)**: Updating package versions for release 16.6.0 //<Dan Abramov>// - **[d520b358d](facebook/react@d520b358d)**: Revert all package versions to 16.5.2 state //<Dan Abramov>// - **[8f1ec7649](facebook/react@8f1ec7649)**: Bump versions to beta.0 //<Dan Abramov>// - **[5055a83fa](facebook/react@5055a83fa)**: Revert "Revert "Updating dependencies for react-noop-renderer"" //<Dan Abramov>// - **[3e8b4a5b8](facebook/react@3e8b4a5b8)**: Revert "Updating dependencies for react-noop-renderer" //<Brian Vaughn>// - **[d8e03de4a](facebook/react@d8e03de4a)**: [react-cache] Remove `cache` as argument to `read` (facebook#13865) //<Andrew Clark>// - **[fefa1269e](facebook/react@fefa1269e)**: Revert accidentally committed existence check (facebook#13931) //<Andrew Clark>// - **[80a0c05ce](facebook/react@80a0c05ce)**: Removed react-cache from the bundle list for now (facebook#13930) //<BrianVaughn>// - **[915e4eab5](facebook/react@915e4eab5)**: Add "unstable_" prefix to react-cache and jest-react (facebook#13929) //<Brian Vaughn>// - **[cbbc2b6c4](facebook/react@cbbc2b6c4)**: [Synchronous Suspense] Suspending a class outside concurrent mode (facebook#13926) //<Andrew Clark>// - **[4947fcd76](facebook/react@4947fcd76)**: Fix lint (facebook#13923) //<Sebastian Markbåge>// - **[d75c69e0c](facebook/react@d75c69e0c)**: Remove unstable_ prefix from Suspense (facebook#13922) //<Sebastian Markbåge>// - **[c8ef2feda](facebook/react@c8ef2feda)**: Remove redundant word "the" (facebook#13919) //<John Lin>// - **[55444a6f4](facebook/react@55444a6f4)**: Try rendering again if a timed out tree receives an update (facebook#13921) //<Andrew Clark>// - **[04c4f2fce](facebook/react@04c4f2fce)**: [reconciler] ReactFiberNewContext import maxSigned31BitInt twice (facebook#13857) //<yongningfu>// - **[409e472fc](facebook/react@409e472fc)**: Add flow types in ReactControlledComponent (facebook#13669) //<Abdul Rauf>// - **[663835a43](facebook/react@663835a43)**: Add flow types in getEventModifierState (facebook#13909) //<Abdul Rauf>// - **[82710097f](facebook/react@82710097f)**: Add flow types in getNodeForCharacterOffset (facebook#13908) //<Abdul Rauf>// - **[b753f76a7](facebook/react@b753f76a7)**: Fix failing async tests in Node 10 //<Andrew Clark>// - **[b5c0852fd](facebook/react@b5c0852fd)**: Bump version to 16.6.0-beta.0 (facebook#13906) //<Dan Abramov>// - **[769b1f270](facebook/react@769b1f270)**: pure -> memo (facebook#13905) //<Dan Abramov>// - **[8ecd4bd4f](facebook/react@8ecd4bd4f)**: Add support for React.pure in ReactDOMServer (facebook#13855) //<Alex Taylor>// - **[15b11d23f](facebook/react@15b11d23f)**: Allow arbitrary types to be wrapped in pure (facebook#13903) //<Sebastian Markbåge>// - **[e770af7a3](facebook/react@e770af7a3)**: Add back accidentally deleted `break` to prevent fallthrough //<Andrew Clark>// - **[95a313ec0](facebook/react@95a313ec0)**: Unfork Lazy Component Branches (facebook#13902) //<Sebastian Markbåge>// - **[e16cdd5b1](facebook/react@e16cdd5b1)**: Always bail out timed out children even if they receive an update (facebook#13901) //<Andrew Clark>// - **[7268d97d2](facebook/react@7268d97d2)**: Centralize props memoization (facebook#13900) //<Sebastian Markbåge>// - **[0fc044679](facebook/react@0fc044679)**: Class component can suspend without losing state outside concurrent mode (facebook#13899) //<Andrew Clark>// - **[36db53822](facebook/react@36db53822)**: Bugfix for facebook#13886 (facebook#13896) //<Andrew Clark>// - **[6938dcaac](facebook/react@6938dcaac)**: SSR support for class contextType (facebook#13889) //<Sebastian Markbåge>// - **[fa65c58e1](facebook/react@fa65c58e1)**: Add readContext to SSR (facebook#13888) //<Sebastian Markbåge>// - **[d9a3cc070](facebook/react@d9a3cc070)**: React.lazy constructor must return result of a dynamic import (facebook#13886) //<Andrew Clark>// - **[d9659e499](facebook/react@d9659e499)**: Lazy components must use React.lazy (facebook#13885) //<Andrew Clark>// - **[0648ca618](facebook/react@0648ca618)**: Revert "React.pure automatically forwards ref" (facebook#13887) //<Sophie Alpert>// - **[4dd772ac1](facebook/react@4dd772ac1)**: Prettier :( //<Andrew Clark>// - **[98bab66c3](facebook/react@98bab66c3)**: Fix lint //<Andrew Clark>// - **[8ced545e3](facebook/react@8ced545e3)**: Suspense component does not capture if `fallback` is not defined (facebook#13879) //<Andrew Clark>// - **[b738ced47](facebook/react@b738ced47)**: Remove render prop option from Suspense (facebook#13880) //<Andrew Clark>// - **[55b827942](facebook/react@55b827942)**: Strict mode and default mode should have same Suspense semantics (facebook#13882) //<Andrew Clark>// - **[dac9202a9](facebook/react@dac9202a9)**: Hide timed-out children instead of deleting them so their state ispreserved (facebook#13823) //<Andrew Clark>// - **[4f0bd4590](facebook/react@4f0bd4590)**: Replacement of old links, by the new ones of the documentation. (facebook#13871) //<Pablo Javier D. A>// - **[7685b55d2](facebook/react@7685b55d2)**: Remove unstable_read() in favor of direct dispatcher call (facebook#13861)//<Dan Abramov>// - **[21a79a1d9](facebook/react@21a79a1d9)**: [schedule] Call ensureHostCallbackIsScheduled without args (facebook#13852) //<Trivikram Kamat>// - **[9ea4bc6ed](facebook/react@9ea4bc6ed)**: Fix false positive context warning when using an old React (facebook#13850) //<Dan Abramov>// Release Notes: [GENERAL] [FEATURE] [React] - React sync for revisions 4773fdf...3ff2c7c Reviewed By: sebmarkbage Differential Revision: D12955345 fbshipit-source-id: db12076758fe85a519074ca4fe3aa5ede6f4fd49

facebook-github-bot added CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. GH Review: review-needed labels May 10, 2017

teameh mentioned this pull request May 10, 2017

react-addons-perf doesn't measure anything #12163

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hramos reviewed May 16, 2017

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Add RCTRenderingPerf to performance docs

4fd44f3

teameh force-pushed the patch-1 branch from d172fd8 to 4fd44f3 Compare May 17, 2017 13:34

Update Performance.md

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shergin added the Documentation label May 31, 2017

teameh closed this Aug 3, 2017

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Add RCTRenderingPerf to performance docs #13902

Add RCTRenderingPerf to performance docs #13902

teameh commented May 10, 2017

teameh commented May 10, 2017

hramos May 16, 2017

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kelset commented May 31, 2017

teameh commented Jul 26, 2017

javiercr commented Aug 3, 2017 •

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kelset commented Aug 3, 2017

teameh commented Aug 3, 2017

Add RCTRenderingPerf to performance docs #13902

Add RCTRenderingPerf to performance docs #13902

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