Граф коммитов

1621 Коммитов

Автор SHA1 Сообщение Дата
David Vacca bcc482e655 Fix parsing of textAlign props in C++
Summary:
This diff fixes the parsing of the textAlign prop in Fabric. The current parsing does not support 'justify' or 'auto' values.
See https://facebook.github.io/react-native/docs/0.59/text-style-props#textalign for more details about the values of these props in the JS side.

Reviewed By: shergin

Differential Revision: D16269509

fbshipit-source-id: e0d9168d6022245430de644f7c4e45c968b1326b
2019-07-15 18:33:26 -07:00
Ramanpreet Nara ff9323a0b0 Type-check JS args when converting them to Java args
Summary:
When you call a TurboModule method with JS arguments, we necessarily convert these JS args to Java objects/primitives before passing them to the Java implementation of the method. The problem is that we let the type of the JS arg dictate the type of the Java object/primitive to convert said arg to. This means that if a JS developer passes in an `number` to a function that expects an `Array`, we'll convert the number to a `double` and try to call the Java method with that `double`, when it actually expects a `ReadableArray`. This will trigger a JNI error, and crash the program. Ideally, we should be able to catch these type mismatches early on.

In this diff, on every TurboModule method call, I parse the method signature to determine the Java type of each JS argument. Then, for any argument, if the JS arg and the Java arg types aren't compatible, I raise an exception, which gets displayed as a RedBox in development. This diff also implements support for `?number` and `?boolean` argument and return types in TurboModules.

Reviewed By: mdvacca

Differential Revision: D16214814

fbshipit-source-id: 4399bb88c5344cff50aa8fe8d54eb2000990a852
2019-07-12 22:54:55 -07:00
Kevin Gozali c1b0f398e6 TM iOS: move jscallinvoker under ReactCommon podspec
Summary:
This essentially changes the header namespace to `<ReactCommon/`
Relevant efforts:
https://github.com/facebook/react-native/pull/25619
https://github.com/facebook/react-native/pull/25393

Reviewed By: PeteTheHeat

Differential Revision: D16233125

fbshipit-source-id: 83eda4cc50ebb01efd1ce3eb18f47c97a049cffa
2019-07-12 22:44:20 -07:00
Kevin Gozali 394c9a55be TM iOS: deprecate RN_TURBO_MODULE_ENABLED compiler flag
Summary:
It was added due to missing TM support in .xcodeproj, but since .xcodeproj has been deprecated, we don't need this flag anymore.

Relevant efforts:
https://github.com/facebook/react-native/pull/25619
https://github.com/facebook/react-native/pull/25393

Reviewed By: hramos

Differential Revision: D16231698

fbshipit-source-id: b3276d1fc64394624e5110f2ecd31acc2bb2d240
2019-07-12 22:44:20 -07:00
Kevin Gozali 6e7ce9c082 TM iOS: refactor header dir for TM
Summary:
For better cocoapods compatibility, refactored TM podspec to be a subspec of ReactCommon, then use `<ReactCommon/` header prefix for all TM files.

Relevant efforts:
https://github.com/facebook/react-native/pull/25619
https://github.com/facebook/react-native/pull/25393

Reviewed By: hramos

Differential Revision: D16231697

fbshipit-source-id: 38d3418b19978ff54aa0c61b064ac45ac0e1c36c
2019-07-12 22:44:20 -07:00
Valentin Shergin 2ec8ec050f Fabric: Removing `SharedAccessibilityProps` and some code style changes
Summary: Trivial.

Reviewed By: sammy-SC

Differential Revision: D16139594

fbshipit-source-id: 300b7a2cd24c56dc5b9dee4a0248dda1b388589e
2019-07-10 19:26:50 -07:00
James Treanor 6ef91061e8 CocoaPods frameworks compatibility: Step 1 (#25496)
Summary:
This is the first step towards fixing https://github.com/facebook/react-native/issues/25349. These are the changes to the podspec to correctly update dependencies and build config that will cause any breaking change for users or libraries.

I am breaking these changes out from https://github.com/facebook/react-native/pull/25393 as suggested by fkgozali in https://github.com/facebook/react-native/pull/25393#issuecomment-508322884.

These are the changes:

- Made C++ headers in `React-Core` private by default so that ObjC files can import the module without failures.
- Reduced the number of `yoga` headers that are exposed for the same reason as above. As far as I can see this doesn't cause issues but we can find another solution if it does.
- Adding some missing dependencies to fix undefined symbols errors.
- Added `DoubleConversion` to `HEADER_SEARCH_PATHS` where it was missing.

## Changelog

[iOS] [Fixed] - Updated podspecs for improved compatibility with different install types.
Pull Request resolved: https://github.com/facebook/react-native/pull/25496

Test Plan:
Everything should work exactly as before. I have a branch on my [sample project](https://github.com/jtreanor/react-native-cocoapods-frameworks) here which points at this branch to show that it is still working `Podfile` to demonstrate this is fixed.

You can see that it works with these steps:

1. `git clone git@github.com:jtreanor/react-native-cocoapods-frameworks.git`
2. `git checkout podspec-updates`
3. `cd ios && pod install`
4. `cd .. && react-native run-ios`

The sample app will build and run successfully.

Reviewed By: mmmulani

Differential Revision: D16167346

Pulled By: fkgozali

fbshipit-source-id: 1917b2f8779cb172362a457fb3fce686c55056d3
2019-07-10 10:21:38 -07:00
Valentin Shergin 27009c1031 Fabric: More precondition asserts in ConcreteShadowNode
Summary: That should help to fail early in situations when we lose critical class data members.

Reviewed By: sammy-SC

Differential Revision: D16179539

fbshipit-source-id: da73b81568c2f3657b9bc2bd1cc7ee6624e75626
2019-07-10 08:48:38 -07:00
Valentin Shergin e97a2a8535 Fabric: Proper node construction in ComponentDescriptorRegistry
Summary: This is a very similar mechanism that we use in UIManager and it should be eventually unified.

Reviewed By: sammy-SC

Differential Revision: D16179524

fbshipit-source-id: 7c8c45b7581ac4a1db3a773d62004ff368f18321
2019-07-10 08:48:38 -07:00
Sidharth Guglani 12ca9830c8 add baseline start and baseline end events
Summary: Adds Baseline start and end events to be handled later for instrumentation

Reviewed By: davidaurelio

Differential Revision: D16048790

fbshipit-source-id: 8409dbb633168753a7bf8fab20bc6551d113ddd6
2019-07-10 08:48:37 -07:00
Sidharth Guglani fdf3873281 move YGMarkerLayout to event based system
Summary: Using layoutPassStart and LayoutPassEnd events instead of YGMarkerLayout for instrumentation

Reviewed By: davidaurelio

Differential Revision: D16048789

fbshipit-source-id: 041a35bc2cb1b7281ca83cf9d35041b4011cfeb9
2019-07-10 08:48:37 -07:00
Valentin Shergin d656878e0d Fabric: Removing AccessibleShadowNode
Summary: Accessibility is essential but seems we don't have any use of AccessibleShadowNode in Fabric.

Reviewed By: sammy-SC

Differential Revision: D16139595

fbshipit-source-id: a6aec6d22c4a6050d7ee5e6b21ef4ad04d80ffce
2019-07-08 21:10:48 -07:00
Valentin Shergin 2111f205ae Fabric: Removing `SharedYogaStylableProps` and small codestyle changes
Summary: Trivial. We don't use it.

Reviewed By: sammy-SC

Differential Revision: D16139556

fbshipit-source-id: bac282c1aa228c10d27ebd636cf71fcc33b322e9
2019-07-08 21:10:47 -07:00
Ashok Menon 424f93022d Use iosfwd instead of iostream
Summary:
The instrumentation header only needs the forward declarations for ostream, so
we can use just include `iosfwd`, as suggested by Riley in an earlier diff.

Reviewed By: kodafb

Differential Revision: D16152451

fbshipit-source-id: 2afbc40e623b180dfc5917fc8093ab15bf647968
2019-07-08 14:56:44 -07:00
Samuel Susla faf9130560 fabric: Migrate ModalHostView
Summary: Implements `ModalHostView` in Fabric.

Reviewed By: shergin

Differential Revision: D16090949

fbshipit-source-id: fe2c87063863e7f3c6c8dcc934a2cdb0b1aedaac
2019-07-08 03:56:31 -07:00
Valentin Shergin 06ce568155 Fabric: Use state in Paragraph component
Summary:
All props to Eric Lewis! cc ericlewis

This revert of revert of land of changes originally published in #24873 (with some slight fixes). The change removes usage of LocalData from the `<Text>` component.

After this change we only have ---one (maybe two)--- three components left using LocalData.

Reviewed By: mdvacca

Differential Revision: D15962376

fbshipit-source-id: 19f41109ce9d71ce30d618a45eb2b547a11f29a2
2019-07-07 22:46:21 -07:00
David Vacca d07ab35bfb Expose LayoutDirection to Fabric android
Summary: This diff exposes LayoutDirection as part of UpdateLayoutMountItem

Reviewed By: JoshuaGross

Differential Revision: D16060521

fbshipit-source-id: 163bf2a0bdca62dcecb03a8aaa2f4bf595b18c8f
2019-07-02 14:47:21 -07:00
David Vacca 3c2395212c Update parsing of textAlign prop for Text
Summary: This fixes the parsing of textAlign prop in BaseTextProps class. The name is textAlign and not alignment.

Reviewed By: JoshuaGross

Differential Revision: D16057477

fbshipit-source-id: a00a472af4c7df0a6cd3d6efb17b30cd9134907b
2019-07-02 14:47:21 -07:00
Uladzislau Paulovich ce9c47f34b Remove incorrect constexpr specifier in YGLayout (#25430)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/25430

Pull Request resolved: https://github.com/facebook/litho/pull/561

Pull Request resolved: https://github.com/facebook/yoga/pull/910

* According to C++ standard values which produce undefined behavior cannot be declared as `constexpr`.
* Expressions which evaluate to `nan, infinity, etc` are undefined behavior.

For more details you can checkout this Stackoverflow answer: https://stackoverflow.com/a/46373136

Reviewed By: davidaurelio

Differential Revision: D16055108

fbshipit-source-id: ee85ba63a714b18bfb8aa8c0770652e184454f74
2019-07-01 08:51:41 -07:00
Valentin Shergin 902541e874 Fabric: Fixing a concurrency issue in RawProp parsing infra
Summary:
Previously, we stored `keyIndex_` in a Parser object which is incorrect because it makes the parsing process thread-unsafe (the Parser is shared between parsing processes).

That worked previously most of the time because we never parsed props concurrently but we actually do this in the native animation library.

Reviewed By: yungsters

Differential Revision: D16064557

fbshipit-source-id: 211f4301d0746e0f5126a1dcdd59f1ae9a420aa9
2019-06-28 22:53:45 -07:00
David Aurelio 0d89653dd6 Move `YG_ENABLE_EVENTS` checks to `event.h`
Summary:
Instead of checking whether `YG_ENABLE_EVENTS` is defined for every publish, we simply wrap the body of the `publish` function macro that delegates to the method that actually publishes the event.

This way we get

1. easier to write code where we publish events
2. more type safety when editing, enabling editors/IDEs to show errors without knowing about `YG_ENABLE_EVENTS`

Reviewed By: SidharthGuglani

Differential Revision: D16049888

fbshipit-source-id: cbf362d6f7be5053c3f377125d303b7137d6a241
2019-06-28 09:59:06 -07:00
David Aurelio 792f715178 Stop recording measure callback duration
Summary: Removes time measurements for measure callbacks. This functionality should not be part of Yoga/core, and can now be done by event subscribers themselves, as we have two events per measure callback.

Reviewed By: SidharthGuglani

Differential Revision: D16049812

fbshipit-source-id: e16556f3854e42f4bada39a97a668e718719b22c
2019-06-28 09:59:05 -07:00
David Aurelio 2985ddbc33 Publish two events for measure callbacks
Summary: Publishing two events will allow us to replace marker functionality completely with events. This also allows us to remove measuring time spent from Yoga itself.

Reviewed By: SidharthGuglani

Differential Revision: D16049810

fbshipit-source-id: 98628a92ed3c94d479e9fbcd53fac90c5f524087
2019-06-28 09:59:05 -07:00
Ashok Menon 14686259d9 Create Snapshot From Stream
Summary:
Adding an instrumentation endpoint that allows us to write a snapshot out to an
arbitrary output stream.  This is in addition to `createSnapshotFromFile`.  I
reserve the right to replace the latter with the former in a later diff.

This is necessary to allow snapshots to be requested over the chrome debugger
protocol.  The protocol sends the snapshot over the wire in chunks so we need
to be able to use an output stream that can do the chunking.

Because LLVM types are not available at the JSI layer, we accept a
`std::ostream` reference which we wrap with `llvm::raw_os_ostream` within
Hermes.  We should not incur the static initializer cost (or other code bloat)
of using ostreams as a result.

Reviewed By: cwdick

Differential Revision: D16016319

fbshipit-source-id: 2d0b4848fd5cbe9ddee371d856cd8eb19dd80396
2019-06-28 06:15:33 -07:00
David Aurelio 18eba792dd Remove duplicate declaration of `YGRoundValueToPixelGrid` from `Yoga-internal.h`
Summary:
@public

Removes the declaration of `YGRoundValueToPixelGrid` from `Yoga-internal.h`, as it is already declared in `Yoga.h`. `Yoga.h` is included from `Yoga-internal.h`

Reviewed By: SidharthGuglani

Differential Revision: D16047832

fbshipit-source-id: 72d9d2510372c983eedacc5d7af406b9346f18e6
2019-06-28 05:17:51 -07:00
Ashok Menon bbf093a03b Remove const_cast in createSnapshotFromFile wrapper.
Summary:
The function is not annotated with `const` so `plain()` will return a non-const
reference to the undecorated Runtime already.  Seems like the const_cast was a
hold-over from a previous iteration.

Reviewed By: mhorowitz

Differential Revision: D16016320

fbshipit-source-id: 3dfa1e9acf2fc5c1ad61c9a8cd27c3c2e42036d3
2019-06-27 10:02:26 -07:00
Kevin Gozali b25d22aae6 Use YOGA_CXX_TARGET alias for Buck deps
Summary: Proper abstraction to make BUCK files more OSS friendly.

Reviewed By: shergin

Differential Revision: D15998817

fbshipit-source-id: cad2498f62a8774037e754e8b52200f0dcc5af59
2019-06-26 11:19:34 -07:00
Valentin Shergin 543c5a0164 Fabric: ShadowNode::getMostRecentState()
Summary: In some cases, we cannot retrieve the "committed" state because no one state was mounted yet. The whole concept of "confirmed" or "legit at the moment" is kinda overstatement. The actual meaning of this is "the last vision of the state to which we advanced so far"; it does not have any relation to the actual "commit" phase or "mounting" process.

Reviewed By: sammy-SC

Differential Revision: D16002127

fbshipit-source-id: 95465e632525f873ae67f6db320a89562b62ba29
2019-06-26 10:05:34 -07:00
dattc2 1dbc38ad93 make yoga threadsafe (#852)
Summary:
Continuing https://github.com/facebook/yoga/pull/791
nokia6686 is a former member of our team, so we are trying to pick up what he left and carry out the pull request.
# Solution
Improved from previous solution with jpap's suggestions.
2. Passing ```gDepth``` and ```gCurrentGenerationCount``` (renamed to **_depth_** and **_generationCount_** respectively) between function calls that stem from ```YGNodeCalculateLayout```.
In ```YGNodeCalculateLayout```, pass ```depth``` as value 0, to indicate the root depth.
Pull Request resolved: https://github.com/facebook/yoga/pull/852

Reviewed By: SidharthGuglani

Differential Revision: D15537450

Pulled By: davidaurelio

fbshipit-source-id: 338f51383591ba27702ebe759f6c47c2dede3530
2019-06-26 10:05:32 -07:00
Valentin Shergin b491e8725a Fabric: ShadowNode::getCommitedState() does not crash now in case if there is no comited state
Summary: `Target` inside the Stage can be empty; in this case, we should not try to extract `ShadowNode` from it.

Reviewed By: JoshuaGross, mdvacca

Differential Revision: D15982479

fbshipit-source-id: 83a4bebadc88b59d7fe77acbdf07e8ce9f2f6be1
2019-06-26 10:05:30 -07:00
Sidharth Guglani 055b28b4f4 pass cachedLayout and cachedMeasure measures to plugin
Summary: Passing whether layout cache or measure cache was used or not

Reviewed By: davidaurelio

Differential Revision: D15920937

fbshipit-source-id: a6728e7af07ea228a285f824fbdfddc8130c5990
2019-06-24 08:35:34 -07:00
Sidharth Guglani 4332a28750 Move event NodeLayout to end of NodeLayout step
Summary:
Added event NodeLayoutEnd and this is being used now instead of NodeLayout
It will be used later to add more information about caches

Reviewed By: davidaurelio

Differential Revision: D15920935

fbshipit-source-id: c9f5e193bc8cc70d26ff5d84882d483c9b09f67d
2019-06-24 08:35:34 -07:00
Valentin Shergin 27b672993d Fabric: Unification of ShadowView's default constructor
Summary:
The previous version of a set of default values of `ShadowView`'s fields has a bug:
```
  ComponentName componentName = "";
```

Initalizing `char const *` with a string literal in .h file makes the default constructor of the object produces different values across binary units (because a pointer to empty string can be defined differently). Now it's just a null pointer.

Reviewed By: sammy-SC

Differential Revision: D15911452

fbshipit-source-id: 16bcfb5f78ea802c0833135c486e3fbb8b7acaa6
2019-06-23 21:33:18 -07:00
Valentin Shergin bca4e4c8a4 Fabric: Additional static asserts in Differentiator
Summary: I am about to change the definition of ShadowView a bit, so I think we need to ensure that we don't regress move semantic.

Reviewed By: JoshuaGross, sammy-SC

Differential Revision: D15911453

fbshipit-source-id: ce2cd4cb2375ecb76295948a1e9b5d2e7fb80f38
2019-06-23 21:33:18 -07:00
Valentin Shergin bd19f3bd13 Fabric: ShadowNode::getCommitedState() now returns by value
Summary: Returning a shared pointer by const reference in this context is not correct/safe because the object (the ShadowNode) doesn't own the object, so the caller cannot reason about the lifetime (esp. in a multithreaded environment).

Reviewed By: mdvacca

Differential Revision: D15958737

fbshipit-source-id: 8f03e6530d07d63ece5f955055c5c67c204b8223
2019-06-22 18:50:33 -07:00
Kevin Gozali 01a42bc368 TM iOS: Prevent module cache invalidation race
Summary: There are still race condition during bridge invalidation. Some modules may be accessing other modules during invalidation, but it's racing with the TM manager clearing the cache.

Reviewed By: JoshuaGross

Differential Revision: D15947488

fbshipit-source-id: 3bd51382264f538a03ca565b0f099da40c3daadf
2019-06-21 15:54:01 -07:00
zhongwuzw af59323d81 TM: Backward compatibility of calling invalidate on module's method queue (#25264)
Summary:
Backward compatibility for `invalidate` method, because for the old module system, we ensure call all methods of modules on `methodQueue`, we also need to keep this rule to avoid some race condition in module.

## Changelog

[iOS] [Fixed] - Backward compatibility of calling invalidate on module's method queue
Pull Request resolved: https://github.com/facebook/react-native/pull/25264

Test Plan: Ensure `invalidate` method of `module` be called on `methodQueue`.

Reviewed By: PeteTheHeat, JoshuaGross

Differential Revision: D15944532

Pulled By: fkgozali

fbshipit-source-id: e260792bc6b86a48cdf376282063cbabccbf26f0
2019-06-21 15:54:01 -07:00
David Vacca 4f4d3857ea Back out "[Fabric][C++] Backout Force Diffing algorithm to insert views Bottom Up"
Summary: Original commit changeset: 455034ce7b70

Reviewed By: JoshuaGross

Differential Revision: D15900818

fbshipit-source-id: c197aaedde1ab32e2e1a5764eb400600ab46b840
2019-06-21 11:52:56 -07:00
David Aurelio 52e4c8df6c Replace relative include
Summary: Replaces the relative include to `YGEnums.h` in `yoga/event/event.h` with `#include <yoga/YGEnums.h>

Reviewed By: SidharthGuglani

Differential Revision: D15778634

fbshipit-source-id: 2bceeb58f26c0d9d0df6c0e7ea20b8ddf68a1ee5
2019-06-21 04:09:52 -07:00
Sidharth Guglani fc82c59be7 Send measure pass duration
Summary: Send measure callback duration time to yoga plugin

Reviewed By: davidaurelio

Differential Revision: D15917548

fbshipit-source-id: 2c947f14ddbc5932cedd0aab8622260478ec29a6
2019-06-21 02:33:02 -07:00
Valentin Shergin 044176925b Fabric: Disabling RN_SHADOW_TREE_INTROSPECTION
Summary:
It's unclear why, but the introspection infra is enabled somehow in prod.
It must be some kind of misconfiguration somewhere. Until we figure it now, we have to disable it completly.

Reviewed By: mdvacca

Differential Revision: D15908765

fbshipit-source-id: 2b17c61938731d43eaef51b070a4ec1ae9e5e1df
2019-06-19 18:07:11 -07:00
Valentin Shergin 6f97733bb8 Fabric: Changing `ComponentName` type alias from `std::string` to `char *`
Summary:
ComponentName is used by many core component of React Native, such as ComponentDescriptor, ShadowNode, ShadowView and so on. In all those cases this value represents the actual name of the component which came from `concreteComponentName` template parameter of ConcreteShadowNode. In all of those cases, it's raw `char const *` type. So, we don't need to use owning representation of the string (std::string) in all those places.

The only exception from this is a part where we receive the name of the component from JS side. In this case, the source string comes from JS and has to be analyzed as a character sequence to find corresponding ComponentDescriptor.

In my experiments, 20% of the time during diffing is spent on copying (this) `std::string`.

Reviewed By: mdvacca

Differential Revision: D15844407

fbshipit-source-id: a2e71505e22d09107e001bdf661d4a826bcf2dea
2019-06-18 11:31:20 -07:00
Valentin Shergin 5d18e9aa16 Fabric: Workaround for weird crash in RCTImageManager
Summary: Seems RCTImageLoader is not thread-safe, so we need to compensate for this for now. Classic RN mostly accesses the loader from the main thread (non-concurrently), so it mostly works for Paper.

Reviewed By: mdvacca

Differential Revision: D15867574

fbshipit-source-id: 4aad5570b57a136aa0bbe31d65f1afe2ae6e380e
2019-06-17 21:18:54 -07:00
David Aurelio 853c667eb5 Allow to end markers early
Summary:
Adds the ability to `MarkerSection` to end the marker before it goes out of scope.

This unlocks two scenarios:
- reuse the data associated with a marker after ending it.
- end markers in the middle of a function without adding arbitrary blocks.

Reviewed By: SidharthGuglani

Differential Revision: D15837840

fbshipit-source-id: c0afaeeabd169c65189b5028be54ea7dac3e3b84
2019-06-15 10:19:33 -07:00
David Aurelio 3ce9ac6eed Count the number measure callback invocations
Summary: Counts how many times measure callbacks have been invoked during a layout pass. This is made available via the marker and event APIs.

Reviewed By: SidharthGuglani

Differential Revision: D15836983

fbshipit-source-id: 3835bef94e497375821c9f2ad8209447b4f11518
2019-06-15 10:19:33 -07:00
Kevin Gozali 72e276a0f0 TM iOS: Keep LongLivedObject longer past invalidation
Summary:
There can be a race condition between bridge invalidation (hence TM binding invalidation) with pending Promise reject/resolve invocation. If invalidation happens first, invoking the resolve/reject from ObjC class might end up accessing destroyed PromiseWrapper, causing hard crash randomly.

The proper fix is to switch the objc promise resolve/reject block (objc block) to use C++ PromiseWrapper directly, such that the lifecycle of the shared_ptr<> can be correct.

Reviewed By: RSNara

Differential Revision: D15801403

fbshipit-source-id: 9b0c7d323b18d94e920ea3eafc3a6916dadba247
2019-06-13 09:13:51 -07:00
Ramanpreet Nara e908f7a3fe Fix TurboCxxModules::get
Summary: Make `TurboCxxModule::get` return `undefined` when trying to access methods that don't exist. This is what `TurboModule::get` does. So, it makes sense that this behaviour is preserved in TurboCxxModule.

Reviewed By: mdvacca

Differential Revision: D15780044

fbshipit-source-id: 13aeae081655735ef634f1dc09c0dc70a3a3a893
2019-06-13 09:07:24 -07:00
Valentin Shergin 874f656435 Fabric: Rethinking of prop parsing infra
Summary:
This diff reimplements the prop parsing infrastructure in a part where it interacts with RawProps value.

Local synthetic tests show that the new way is 3x faster but the actual production result is quite unpredictable. MobileLab tests show some improvements about 10-20 ms on iPhone 6.

In short, the new way is faster because it inverts the lookup order and heavily relies on actual data types (and their properties) that we use. The old approach required about 130 hash-map lookups (where the key is `std::string`) to parse a single *Props object.
The new approach prepares concrete-props-specific tables with indexes of coming values ahead of time,  iterates over raw data and puts it into those tables, and then performs a lookup in a very efficient manner.

Reviewed By: JoshuaGross

Differential Revision: D15752968

fbshipit-source-id: 847106e652eb7fc7ef7b99884a6f819ea3b9fd06
2019-06-12 21:35:21 -07:00
Valentin Shergin 4d35e4d92c Fabric: Make RootProps constructible from RawProps
Summary: Even though it makes no sense to construct RootProps from RawProps, we need to support that (even if it's no-op) to be able to call this once from generic `ConcreteComponentDescriptor`. We will need it in the coming diff.

Reviewed By: mdvacca

Differential Revision: D15752970

fbshipit-source-id: b75a4023c5d0425a8dbe0f104a36a0f265eb6084
2019-06-12 21:35:20 -07:00
Valentin Shergin 4a4fabf835 Fabric: `LIKELY/UNLIKELY` annotations in props convertion infra
Summary:
In theory, those annotations can help the compiler to emit more optimized code and/or code that suggest CPU the proper way to utilize the instruction pipeline after the coming branch.
TBH, it's not clear how exactly beneficial those annotations are (esp. on target architectures) but they certainly don't hurt (in all cases here the favorite code branch is obvious).

Reviewed By: mdvacca

Differential Revision: D15752969

fbshipit-source-id: 8adf25a48107ffde828f735fb1386b30dbe63ede
2019-06-12 21:35:20 -07:00