160 Commits

Author SHA1 Message Date
Valentin Shergin
757518edba Fabric: ShadowTreeRegistry::get was renamed to ShadowTreeRegistry::visit
Summary: Trivial. The name `visit` expresss intent more clearly and fits C++17 `std::visit` pattern.

Reviewed By: mdvacca

Differential Revision: D13269744

fbshipit-source-id: 6aa6569c58aa66673e3f3a1662390a74290b8e01
2018-11-30 17:29:31 -08:00
Valentin Shergin
d150cbc298 Fabric: Using RW-like shared lock in ShadowTreeRegistry
Summary:
`ShadowTree` class is already thread-safe, so we don't need to (we should not) guard concurent access to it.
We should guard concurrent write-access to the collection of them though.
Note that unordered_map is "thread-compatible" collection, so concurrent reading access is okay.

Reviewed By: mdvacca

Differential Revision: D13269745

fbshipit-source-id: 4779626018da0e42b81a835e538f6c1d1a8e25f7
2018-11-30 17:29:31 -08:00
Valentin Shergin
dea8773c19 Fabric: ValueFactory and EventEmitter::dispatchEvent based on that
Summary:
Now the event delive pipeline supports `JSI::Value`-based payload. Instead of passing `folly::dynamic`, now we are passing `std::function<jsi::Value(jsi::Runtime &runtime)>` as factory that can build a `JSI::Value` with given `jsi::Runtime` and any captured data.
The old (now legacy) way of calling `EventEmitter::dispatchEvent(..., const folly::dynamic &payload, ...)` is also supported.

Reviewed By: sahrens

Differential Revision: D13123043

fbshipit-source-id: d65348bb215013042abb2fcfe5083a8c697333d0
2018-11-27 21:00:55 -08:00
Valentin Shergin
f4da8769a3 Fabric: Coupling Tag inside TargetEventEmitter
Summary: Now instead of passing `reactTag` through the whole event pipeline, we store it inside `EventTargetWrapper` (and it does not leave `UIManagerBinding`). It helps with reducing the complexity of `EventEmitter` and will help us in migrating to JSI.

Reviewed By: sahrens

Differential Revision: D13123045

fbshipit-source-id: aa9ee94d5660ff3090369c1e55cf748d2e72b987
2018-11-27 21:00:55 -08:00
Valentin Shergin
106de1201b Fabric: Fixed incorrect systrace marker in UIManagerBinding::dispatchEvent
Summary: `SystraceSection` relies on RAII, so previously it measured only `if (eventTarget) {`'s body.

Reviewed By: mdvacca

Differential Revision: D13123047

fbshipit-source-id: 463fba783763f694b51325f98314d36b7da2f887
2018-11-27 21:00:55 -08:00
Valentin Shergin
62173a1569 Introducing fabric/mounting module
Summary:
ShadowView, ShadowViewMutation, and Differentiator were decoupled to separate module.
That enables us to use ShadowView more widely without facing a circular dependency problem.

Reviewed By: mdvacca

Differential Revision: D13205229

fbshipit-source-id: 7373864bf153a7813c2f97edb263a41454ce0b88
2018-11-27 18:34:14 -08:00
Valentin Shergin
28c3981f73 Fabric: UIManagerBinding::setNativeProps
Summary: Pretty straightforward.

Reviewed By: sahrens

Differential Revision: D13114836

fbshipit-source-id: ff86b28d8764955383d4b46a369faf978825f6eb
2018-11-27 18:03:27 -08:00
Valentin Shergin
142dd7673e Fabric: UIManager::setNativeProps
Summary: Pretty straightforward wiring UIManager and the new feature in ShadowTree: we get the node, clone with the new props and then replace this.

Reviewed By: sahrens

Differential Revision: D13114788

fbshipit-source-id: 3a34fb879f3ec564c26278034a19b88518302de8
2018-11-27 18:03:27 -08:00
Valentin Shergin
f42d2b9e32 Fabric: ShadowTree::completeByReplacingShadowNode
Summary: This method is the core of the future features: `setNativeProps` and `LocalState`.

Reviewed By: sahrens

Differential Revision: D13114789

fbshipit-source-id: 2138496c43c171fe27784b1959d86d6eec4638ee
2018-11-27 18:03:27 -08:00
Valentin Shergin
d594d5a4e5 Fabric: UIManagerBinding::getRelativeLayoutMetrics
Summary: Exposing the getRelativeLayoutMetrics method to JS.

Reviewed By: mdvacca

Differential Revision: D13036552

fbshipit-source-id: de825dfde8e64163168510aea1eda77370753b29
2018-11-27 18:03:27 -08:00
Valentin Shergin
cd5f0bd95c Fabric: Stopping creating ShadowView instances for non-View ShadowNodes
Summary:
Apparently, the previous behavior brings more problems than some *possible-in-the-future* features and flexibility.
The new model allows us to easily implement "nested text" feature.

(We temporary hope the old behavious for Android only for compatibility reasons.)

Reviewed By: mdvacca

Differential Revision: D13176277

fbshipit-source-id: 01f7bfb3c2e70cc89d76ecb78add016ee91cbd63
2018-11-25 22:17:30 -08:00
Valentin Shergin
7e57755cea Fabric: UIManager::getRelativeLayoutMetrics
Summary: This method is underlying infra for all `measure`-like methods exposed to JavaScript.

Reviewed By: mdvacca

Differential Revision: D13036553

fbshipit-source-id: cb5135f1db97ec8144b31a24ee4fb9f5d61f0df1
2018-11-21 17:16:48 -08:00
Valentin Shergin
f8be867cd8 Fabric: Sharing a pointer to ShadowTreeRegister with UIManager
Summary: The diff adds a pointer to ShadowTreeRegistry to UIManager which enables the possibility of implementing ShadowTree mutating and inspecting methods like `setNativeProps` and `getRelativeLayoutMetrics`.

Reviewed By: mdvacca

Differential Revision: D13036549

fbshipit-source-id: 5ed1252d84c8dd895fe0e6e8cc71afbaa9dab4b7
2018-11-21 17:16:48 -08:00
Valentin Shergin
b4fa1fa0c6 Fabric: Introducing ShadowTreeRegistry
Summary:
Why do we need a dedicated registry class?
* We need to simplify registry-related logic in Scheduler.
* We need to couple threading aspect of the registry with the registry itself, otherwise it's not clear why exactly we acquire the mutex. We also should not acquire the mutex in a per-method way (as we did before), because it's incorrect and misleading (only lines that access the registry should by protected).
* We need to have a way to share the registry with other classes (e.g. UIManager) without passing a reference to the whole Scheduler.

Reviewed By: mdvacca

Differential Revision: D13036550

fbshipit-source-id: 644da910e823666c586834a3da2b4cdcb90eebb2
2018-11-21 17:16:48 -08:00
Valentin Shergin
71208f05f4 Fabric: Getting rid of leftovers in Scheduler
Summary: Trivial. Those are not used.

Reviewed By: fkgozali

Differential Revision: D13017883

fbshipit-source-id: cf285e537eb85c8fca6852f7c03a5ef661b85757
2018-11-21 17:16:48 -08:00
empyrical
0436bfce3e UITemplateProcessor: Fix case of include path (#22239)
Summary:
This pull request fixes a path name to be a proper case in `UITemplateProcessor`, which fixes this build warning:

```
{snip}/react/uimanager/UITemplateProcessor.cpp:17:10: warning: non-portable path to file '<react/core/ComponentDescriptor.h>';
      specified path differs in case from file name on disk [-Wnonportable-include-path]
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         <react/core/ComponentDescriptor.h>
1 warning generated.
```
Pull Request resolved: https://github.com/facebook/react-native/pull/22239

Differential Revision: D13020871

Pulled By: shergin

fbshipit-source-id: 77555018cd569880518ff884ed8768effc4ea97e
2018-11-11 22:51:32 -08:00
David Vacca
33b966139e Avoid pre-allocating views for non-layoutable shadow nodes
Summary: This diff changes the behavior of the Scheduler.schedulerDidRequestPreliminaryViewAllocation to avoid pre-allocating views that are non-layoutables

Reviewed By: shergin

Differential Revision: D12962008

fbshipit-source-id: cb2670beafdcbd2116fbdaf2dc5d1b4726330ec2
2018-11-11 15:21:49 -08:00
Valentin Shergin
94d49e544d Fabric: Codemod: All <fabric/... includes were renamed to <react/...
Summary: We are moving to more stable APIs removing all mentiones of the effort name from the codebase.

Reviewed By: mdvacca

Differential Revision: D12912894

fbshipit-source-id: 4a0c6b9e7454b8b14e62d419e9e9311dc0c56e7a
2018-11-10 14:22:15 -08:00
Valentin Shergin
d2408dd43a 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
2018-11-09 11:03:34 -08:00
David Vacca
28278e1b06 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
2018-11-09 10:38:50 -08:00
David Vacca
2b01da073c 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
2018-11-08 16:57:46 -08:00
David Vacca
7b04f6aeaa 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
2018-11-08 16:57:46 -08:00
David Vacca
cd5009f713 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
2018-11-08 16:57:46 -08:00
Valentin Shergin
18d8c48c01 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
2018-11-06 11:03:51 -08:00
Valentin Shergin
b9f9f3284e 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
2018-11-06 11:03:51 -08:00
Valentin Shergin
6c5b8c603b 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
2018-11-06 11:03:50 -08:00
Valentin Shergin
ee5061886e Fabric: Some helper classes and functions were moved to uimanager/primitives
Summary: Trivial.

Reviewed By: mdvacca

Differential Revision: D12876747

fbshipit-source-id: a2e72ecb69ffc3787f0d8b432f06b9c9715ac5b1
2018-11-06 11:03:50 -08:00
Valentin Shergin
df4521e6c4 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
2018-11-06 11:03:50 -08:00
Spencer Ahrens
ac9e09d079 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
2018-11-05 15:43:55 -08:00
Spencer Ahrens
ccc8a425ad 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
2018-11-05 15:43:55 -08:00
Spencer Ahrens
7b5277bb75 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
2018-11-05 15:43:55 -08:00
Spencer Ahrens
aab01608ba 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
2018-11-05 15:43:55 -08:00
Spencer Ahrens
10d41d4225 more lint auto fixing
Summary: ran `find js/react-native-github/ReactCommon | xargs arc lint -a`

Reviewed By: fkgozali

Differential Revision: D12902865

fbshipit-source-id: 9c68c0f7e28893e76df966ad4110299e89895454
2018-11-02 12:44:59 -07:00
Valentin Shergin
18423fe16b Fabric: Removing accidental unnecessary BUCK dep
Summary: Trivial.

Reviewed By: mdvacca

Differential Revision: D12840490

fbshipit-source-id: b97340e6369ecff7f22b0dc746d1596a86519eea
2018-10-30 14:39:33 -07:00
Valentin Shergin
8f04699c4c Fabric: New UIManager registration process (beginning)
Summary:
This diff introduces a new integration concept (called RuntimeExecutor) which consolidates `Runtime` and the dispatching mechanism.
As simple as that:
`using RuntimeExecutor = std::function<void(std::function<void(facebook::jsi::Runtime &runtime)> &&callback)>;`

Reviewed By: fkgozali

Differential Revision: D12816746

fbshipit-source-id: 9e27ef16b98af861d494fe50c7e50bd0536e6aaf
2018-10-29 13:06:24 -07:00
Spencer Ahrens
d8a5da5153 Fix some test stuff
Summary: missing header and platform. attributedstring builds now, but still fails because of T34990592

Reviewed By: mdvacca

Differential Revision: D10349210

fbshipit-source-id: dcd163df9ac9a4fcb36399cb9f93dbf1b33c062d
2018-10-11 19:37:48 -07:00
Spencer Ahrens
83da74b556 Refactor uimanager stuff a bit
Summary: Simplies UIManager a bit and some other tweaks

Reviewed By: shergin

Differential Revision: D10211883

fbshipit-source-id: 93ab23dd2baab2fdc6d9c54e976b001a19efab7f
2018-10-10 20:01:04 -07:00
Valentin Shergin
8f51243957 Fabric: Enabling clang-format for the rest of Fabric
Summary: This is the second and the final part of adopting clang-format.

Reviewed By: mdvacca

Differential Revision: D10229624

fbshipit-source-id: d97670b716800ea2488b84bd0aacaf54d8bd2e31
2018-10-09 16:31:48 -07:00
Valentin Shergin
01af828d16 Fabric: Fixed possible race condition in ShadowTree::complete
Summary: Quite obviously, having a `complete` method which accepts only `newRootShadowNode` was a baaad idea. When we `complete` or `commit` we always have to have two nodes (before and after). And only after layout and right before swapping (and acquiring the mutex) we have to verify that *current* root node is still the same as it was when we initialized the transaction (if not, we have to abort).

Reviewed By: mdvacca

Differential Revision: D10201902

fbshipit-source-id: 15adc78c5d31d6fd39fd7fc6e53203a5539717a8
2018-10-09 16:31:48 -07:00
Valentin Shergin
4ce57cb7c7 Fabric: Passing size constraints as part of starting Surface
Summary:
Size constraints are essential part of the running Surface, decoupling them from starting process means that we will have to perform additional commit later.
This and previous couple diffs fix a problem with initial zero size of the surface and following visible "jumpy" relayout.

Reviewed By: sahrens

Differential Revision: D10174280

fbshipit-source-id: 0ec48692cb814fd46cc3a1d044c5eb8ab9ecb031
2018-10-09 16:31:48 -07:00
Valentin Shergin
b8947c459f Fabric: ShadowTree::synchronize and reliable constraintLayout
Summary:
New `ShadowTree::synchronize` method allows to perform operations on ShadowTree without a risk of an unsuccessful commit. To make it happen, the `commitMutex_` is now recursive and `synchronize` acquires it before calling the callback.
Using that we finally can implement reliable `constraintLayout`.

Reviewed By: mdvacca

Differential Revision: D10174281

fbshipit-source-id: 9864ebb5343d40e2da205272a834710f0ab730db
2018-10-09 16:31:48 -07:00
Valentin Shergin
b9850844a5 Fabric: constraintLayout is now return boolean
Summary:
Setting the right expectations: setting layout constraints might fail. Nothing really changed.
Implementing a reliable `constraintLayout` which locks instead of returning immediately requires some additional work and new/additional API.

Reviewed By: mdvacca

Differential Revision: D10159457

fbshipit-source-id: bb23c7de105629ef086ae0b04667ff32c6ffb81d
2018-10-09 16:31:48 -07:00
Valentin Shergin
4876928f9e Fabric: Improved thread-safety in ShadowTree
Summary: With new `ShadowTree::getRootShadowNode()` method all access to rootShadowNode_ is protected by commit mutex.

Reviewed By: mdvacca

Differential Revision: D10159456

fbshipit-source-id: 0bc8676ca2564a8ef95d60e912356e99d9f172c1
2018-10-09 16:31:47 -07:00
Valentin Shergin
0f683bb5c1 Fabric: Calling UIManager's uninstall function asynchonously
Summary:
Calling `uninstall` synchnously was a bad idea. Unfortunatelly, even if it illuminate possible race condition during uninstallation, sometimes it deadlock.
It's not clear for now how to solve both problems without introducting another layer of indirection between UIManager and JSI.

Reviewed By: mdvacca

Differential Revision: D10081500

fbshipit-source-id: 90d8120603929a8219a3e606d8b3527e297b13ce
2018-10-08 14:46:48 -07:00
Valentin Shergin
e3b61f53bd Fabric: Debug Pretty-printing is now debug only feature
Summary: That should save us some app size kilobytes.

Reviewed By: mdvacca

Differential Revision: D10081499

fbshipit-source-id: 2b950768c609b412f9be332c22b6b1e96657e5ea
2018-09-28 10:32:06 -07:00
Valentin Shergin
84fbad6215 Fabric: Safer UIManager deallocation and uninstallation
Summary: We have to uninstall UIManager synchronously to avoid a race condition when JS is capable to call already deallocated UIManager.

Reviewed By: mdvacca

Differential Revision: D10033406

fbshipit-source-id: 194d1ae2dd5ab09b036b1c165de289ada8e66014
2018-09-26 10:18:39 -07:00
Valentin Shergin
c69313fc52 Fabric: Start/stop Surface calls were moved down to C++ layer
Summary:
There is no need to make JS calls to start or stop React Native apps; Scheduler does it automatically. Yay!

With this change (because we have to change Scheduler API) we are starting slow process migrating away from using term `reactRootTag` when we refer to running a ReactNative app (aka Surface). We will use `surfaceId` instead. We plan to slowly and gracefully retire `reactTag` term entity replacing it with several appropriate entities specific for particular usage, e.g. `viewId` (some id which makes sense for mounting), `surfaceId`, `nodeId` (unique id representing nodes which were cloned from the original one), or `eventTarget`.

Reviewed By: mdvacca

Differential Revision: D9999336

fbshipit-source-id: bbc7303c195b070b8c235c9ca35546d1dc693e98
2018-09-26 10:18:39 -07:00
Valentin Shergin
b91f6d1e93 Fabric: Using EventBeatBasedExecutor to ensure threading during installing UIManager
Summary: This is the last step before making JSIUIManagerInstaller a direct dependency of UIManager (and making UIManager installation process completely seamless/platform-agnostic).

Reviewed By: mdvacca

Differential Revision: D9995781

fbshipit-source-id: 6f8c7177495b01ebaac1dbe330f49dce2e2a552c
2018-09-26 10:18:38 -07:00
Valentin Shergin
4a8613f40f Fabric: UIManager's API for installing and uninstalling itself
Summary: UIManager now can install and uninstall itself calling a functions that are provided as constructor arguments.

Reviewed By: mdvacca

Differential Revision: D9931329

fbshipit-source-id: b8d2d9925b0e2db0fed44bdf2e185d198fabd5ee
2018-09-26 10:18:38 -07:00
Valentin Shergin
031037f491 Fabric: Cleaning up Shadow Tree on surface unregistering
Summary: As it mentioned in the comment, we have to commit an empty tree as part of cleaning up Surface.

Reviewed By: mdvacca

Differential Revision: D9931320

fbshipit-source-id: 04e780bafdb917adeb89f2edef2dc0348b2a4d4a
2018-09-24 13:03:12 -07:00