Summary:
This diff changes the way views are inserted by the diffing algorithm.
Previously the diffing algorithm inserted views top-down, now it insert views bottom-up (same order as previous version of RN).
Let say we need to create the following tree:
```
A --> B --> C
|
| --> D
```
Before, the diffing algorithm created the following list of instructions:
```
insert(A, B, 0)
insert(B, C, 0)
insert(B, D, 1)
```
After this diff, the insert instructions are going to be:
```
insert(B, C, 0)
insert(B, D, 1)
insert(A, B, 0)
```
Reviewed By: shergin
Differential Revision: D14817454
fbshipit-source-id: 7aac1a1e1784c53bca2747aee80a5bc8ee788e7a
Summary:
This allows an unsupported component to be rendered as a "unimplemented view" for better visualization of which component is missing. It is off by default, but configurable in the component factory.
For now, the layout simply follows regular <View />, which means the width/height etc is based on the react component styling. The side effect is that components with 0 height/width won't show up at all.
Reviewed By: mdvacca
Differential Revision: D14869656
fbshipit-source-id: f31e012fb7dc1c64fcc431ea5aa45079a23a618e
Summary:
For props that expects a struct/object value, like scrollView's contentInset, not all keys may be present. For example:
```
<ScrollView ... contentInset={{top: 10}} />
```
In this example, `left`, `bottom`, and `right` should just default to 0 (or whatever the default is in the platform). Before this fix, an exception occured when calling `fromRawValue()` because it is assuming all 4 keys are present in the prop bag. However, only `top` key was present in this example.
To fix this, we have to loop through the available keys in the prop bag, then assign the values accordingly.
Reviewed By: JoshuaGross
Differential Revision: D14868549
fbshipit-source-id: e25208eb31f6d4061338e9cac48a93fe71859859
Summary:
Related 094f221a0c, restructure the jsi directory, so update the podspec file either.
cc. shergin cpojer
[iOS] [Fixed] - Update jsi podspec to support new directory structure
Pull Request resolved: https://github.com/facebook/react-native/pull/24388
Differential Revision: D14869999
Pulled By: cpojer
fbshipit-source-id: 0a5df7e2ad83702c0498b2f70072735accc7f54c
Summary: This change synchronizes the JSI API with its upstream, aiming to make this easier to automate in the future.
Reviewed By: mhorowitz
Differential Revision: D14783311
fbshipit-source-id: c180d0f728afbeb87a3e8e7331a39c06e73b907e
Summary: This will simplify updating the JSI API from upstream in the future.
Reviewed By: mhorowitz
Differential Revision: D14762674
fbshipit-source-id: fa4a86f08425943e301da4ef3df9893ebaa1493e
Summary:
@public
Regenerating the “golden master” tests with chrome surfaced different bugs around `align-content`:
- a misunderstanding that values in `align-content` only applied *if there is only one line.* In fact, it applies *every time* a container is set to `flex-wrap: wrap`. Chrome had this wrong, and as such our tests were generated with incorrect parameters.
- empty children growing to the cross axis size of the container, even when `align-content` is different from `stretch`. This was implemented incorrectly in Chrome as well. Here, we fix it with an extra check.
Reviewed By: SidharthGuglani
Differential Revision: D14725402
fbshipit-source-id: a45bebdadb9c694dc0eb7e27cb52b3d247f81c50
Summary:
Previously, all placeholders methods have return type `SomeType &` which is not correct because it allows the called to modify enclosed `static` value of the placeholders; the type should be `SomeType const &`.
Besides that this diff migrates some type aliases to the new style (which makes evething much prettier and readable).
Reviewed By: mdvacca
Differential Revision: D14819076
fbshipit-source-id: 87e68d546f16d7a9ad1fb65e1b238859f9381eb7
Summary: Add experimental support for reordering the pages of a file that is mmap:ed by JSBigFileString. The wrapper is auto-detected (by checking file size and magic header) and transparently reorders the pages.
Reviewed By: ridiculousfish
Differential Revision: D14721397
fbshipit-source-id: 34e095350a9eeb9b07105bed6f3379f2fe472ae6
Summary:
Trivial.
Now we can print actual list of mutations in case of some failure in the diffing algorithm.
Reviewed By: mdvacca
Differential Revision: D14715079
fbshipit-source-id: d0af7c756287643892d7120c199bc8028a6b3431
Summary:
Informal `DebugStringConvertible` interface serves the same purpose as `DebugStringConvertible` abstract class (providing universal pretty-printing interface) but relies on C++ static overloading instead of virtual dispatch.
This approach has some advantages and disadvantages:
Pros:
* It's more clear and scoped. It's simpler to implement debug-printing functionality aside of normal production code.
* It's more composable.
* It allows print types that are not classes.
* For some classes using `DebugStringConvertible` means that we have to use virtual inheritance (which might be undesirable and affect *production* performance (if a compiler isn't smart enough to remove empty base class).
* For some highly lean classes (that designed to be as small as possible) adding base (even empty-in-prod) classes kinda... smells.
Cons:
The particular implementations cannot rely on dynamic dispatch which can complicate printing classes with meaningful differences between sampling classes (e.g. ShadowNode subclasses). That's why we don't remove `DebugStringConvertible` class yet.
Reviewed By: mdvacca
Differential Revision: D14715081
fbshipit-source-id: 1d397dbf81dc6d1dff0cc3f64ad09f10afe0085d
Summary:
They need to be in DebugStringConvertible because it depends on they (and because `debugStringConvertibleUtils` depends on `DebugStringConvertible`).
We also moved they implementation to cpp file to avoid leaking Folly's features to consumer namespace.
Reviewed By: mdvacca
Differential Revision: D14715080
fbshipit-source-id: 7277e17b39a14a2d7ba7e5a9b44a70178feb1045
Summary:
* Small improvements in pretty-printing algorirhm (adding spaces and new-line caracters). Now it's even more pretty.
* The `depth` parameter was integrated into `DebugStringConvertibleOptions` which simplifies evething a bit and reduce amount of arguments that `getDebugDescription` requires.
Reviewed By: sahrens
Differential Revision: D14715082
fbshipit-source-id: 3ea0b8db3c1816c5cb43f40ccec9cdc1943f33a5
Summary:
@public
In order to get out of pre-releases again, we move `YGSetUsedCachedEntries` from `Yoga.h` to `Yoga-internal.h`.
This way, it’s obvious that the function is not public, and we can remove it from future versions without breaking semver contracts.
Reviewed By: SidharthGuglani
Differential Revision: D14726029
fbshipit-source-id: 8d7e747e843bf5c4b5e1d4cfbfa37ca9d240dffb
Summary:
There is a timing issue when reloading the bridge (in dev mode) and the tear down of the TurboModules. This causes `Instance` to never get freed, hence the "bridge" isn't cleaning up properly. The side effect can be bogus error saying that it's unable to find a module.
To address this, JSCallInvoker should just take in weak_ptr<Instance>.
Reviewed By: RSNara
Differential Revision: D14739181
fbshipit-source-id: f9f2a55486debaeb28d3d293df3cf1d3f6b9a031
Summary: Add a target for JSBigString tests that can be run with a normal `buck test` invocation. Also fix an issue in the test when `getenv` returns null by defaulting to `/tmp`.
Reviewed By: ridiculousfish
Differential Revision: D14716270
fbshipit-source-id: f2eb6d3aab93c32a4b41f5786aedd04a70468d75
Summary:
We suspect that we have some error in diffing algorithm that cause some crashes in mounting layer, so we decided to write a comprehensive unit tests for that.
Writing them we realized that it would be cool to also enable that for normal app run in the debug more, so we can catch the problem in real environment when/if it happens.
Reviewed By: mdvacca
Differential Revision: D14587123
fbshipit-source-id: 6dcdf451b39489dec751cd6787de33f3b8ffb3fd
Summary: Because it's kinda more logical and we will rely on this in comming diffs.
Reviewed By: mdvacca
Differential Revision: D14587124
fbshipit-source-id: 94ae9410b4ffeffd0fcb4da4a0518f0bb0d2ba63
Summary:
If a NativeModule method requires an optional boolean argument, our codegen translates those optional booleans into `NSNumber*` instead of `BOOL`. The reason why is probably because this is the closest object analogue to `BOOL` in Objective C. The same boxing occurs with numbers. If the type of a number argument in JavaScript is optional, we'll map it to the `NSNumber*` Objective C type instead of `double`. Our existing TurboModules argument conversion code would not take this behaviour into account. Therefore, we'd try to insert a `BOOL` where the `NSInvocation` would expect a `NSNumber*`. This, in turn, would cause the app to crash. (Why would it crash at the point of NSInvocation retainArguments, I'm still not sure).
Our flow typechecking ensures that if the type of a method argument is a boolean, we pass in a boolean. Therefore, on the Native side, if we detect a boolean, we can check the type of the Native argument to see whether we should box the primitive. If the native argument type is an object, then we know it has to be an `NSNumber*` in both cases, so we simply wrap the `BOOL` or `double` in a `NSNumber*`.
Reviewed By: shergin
Differential Revision: D14679590
fbshipit-source-id: c394a878492aab8e98c71d74ec8740a94fc3a6c5
Summary: Before the fix, the algorithm compares ShadowViews to make a decision should it recursively call itself or not; that didn't work properly because a ShadowView doesn't fully represent the state of the subtree tree (e.g. they don't have information about children nodes). After the fix, we compare pointers to ShadowNodes (by comparing pairs).
Reviewed By: mdvacca
Differential Revision: D14696996
fbshipit-source-id: 560d623b15a272f13b08a11745dec6be39a5dbdd
Summary: When calling into JS (e.g. promise resolve/reject, callback) in TurboModule, we bypass the bridge's message queue. At times this causes race condition, where there are a bunch of pending UI operations (in RCTUImanager) waiting to be flushed, but nothing adds calls to the message queue. Usually tapping the screen will trigger the flush because we're sending down touch events to JS.
Reviewed By: JoshuaGross
Differential Revision: D14656466
fbshipit-source-id: cb3a174e97542bf80f0a37b4170b6a8e6780fa35
Summary: Small changes to State objects to support Android. See following diffs.
Reviewed By: mdvacca
Differential Revision: D14663470
fbshipit-source-id: 878f4dc39265991a7b8ff54ca80bdb862f1dd3de
Summary:
In D14571128, we made it so that when a JS object's property was `undefined`, we wouldn't insert that property into the corresponding NSDictionary. Here are two important observations about that diff:
1. ALL JS `null`s were now being converted to `NSNull`, and JS `undefined`s were now being converted to `nil`.
2. If a JS object's property was explicitly `null`, then we'd insert `NSNull` into the corresponding dictionary.
Considering that when a property doesn't exist in a `NSDictionary`, property access returns `nil`, I've made it so that if a JS object's property is either `null` or `undefined`, then we simply do not insert it in the corresponding `NSDictionary`. Also, I've reverted #1 and made it so that `undefined` and `null` always map to the ObjC `nil`.
This shouldn't unfix the problem that D14571128 was trying to fix.
Here's my understanding of the problem that D14571128 was trying to fix (to make sure I'm not breaking something by this diff).
This method was invoked from JS.
```
RCT_EXPORT_METHOD(logEvents:(NSDictionary *)events)
{
RCTAssert(events, @"You should provide events for logger");
[[NSNotificationCenter defaultCenter] postNotificationName:@"FBReactPerfLoggerDidReceiveEventsNotification"
object:nil
userInfo:@{@"FBReactPerfLoggerUserInfoPerfEventsKey" : [events copy]}];
}
```
The above dispatch calls into this method, which appends `events` into `_pendingJSPerfEvents`.
```
- (void)reactPerfLoggerDidReceiveEvents:(NSNotification *)notification
{
NSDictionary *events = notification.userInfo[@"FBReactPerfLoggerUserInfoPerfEventsKey"];
if (events) {
dispatch_async(_eventQueue, ^{
if (self->_sessionData.perfLoggerFlagId != nil) {
if ([self processJSPerfEvents:events]) {
[self reportMetricsIfFinished];
}
} else {
[self->_pendingJSPerfEvents addObject:events];
}
});
}
}
```
Then, in `_processJSPerfEvents`, we do the following (link: https://fburl.com/tr4wr2a7):
```
NSNumber *actionId = events[@"actionId"];
if (actionId) {
self->_sessionData.actionId = actionId;
}
```
So, if `undefined` or `null` was passed in as the `actionId` property of the `events` JS object in `FBReactPerformanceLogger logEvents:`, then we'd default the `NSDictionary` to have `NSNull` in the corresponding property. This is bad because we had this line in FBReactWildePerfLogger (link: https://fburl.com/2nsywl2n): `actionId ? [actionId shortValue] : PerfLoggerActions.SUCCESS`. Essentially, this is the same problem that my diff is trying to fix.
Reviewed By: fkgozali
Differential Revision: D14625287
fbshipit-source-id: c701d4b6172484cee62494256175e8b205b23c73
Summary:
@public
I would like to get rid of implicit conversions between `YGValue` and `CompactValue`, because they don’t come for free.
That’s why I am adding `CompactValue` specific overrides for `YGResolveValue` and `YGValueEqual`, that do explicit casts. Up the commit stack, we will be able mark both `CompactValue(const YGValue&)` and `CompactValue::operator YGValue()` as `explicit`.
Reviewed By: SidharthGuglani
Differential Revision: D14598447
fbshipit-source-id: 75dc15cefb2dddcf8def891c5fb37893cacd9d46
Summary:
We will use it inside `core` module, so we have to decouple it from `view`.
As part of this, I added some comments, changed `const Float &` to just `Float` and put the implementation into `.cpp` file.
Reviewed By: mdvacca
Differential Revision: D14593952
fbshipit-source-id: 80f7746f4fc5b95febc8df9f5a9c0386a6425c88
Summary: This is based on the work done in D8686586. Removed the logger instance from JSIExecutor constructor and installed it into the runtimeInstaller at all call sites.
Reviewed By: mhorowitz
Differential Revision: D14444120
fbshipit-source-id: 0476fda4230c467573ea04102a12101bcdf36c53
Summary: This diff replaces usage of abort() with LOG(FATAL) when a prop-value is not found during parsing of prop values
Reviewed By: fkgozali
Differential Revision: D14591210
fbshipit-source-id: 4a8484ea6bdfec5534122ded43cc24ef80c13c1d
Summary: This diff replaces usage of abort() with LOG(FATAL) when a prop-value is not found during parsing of prop values
Reviewed By: sahrens
Differential Revision: D14570713
fbshipit-source-id: 57b0f993ba264a4949baf4022d807c55cdfe03b1
Summary:
With our current infra, we support automatic conversion of method arguments using `RCTConvert`.
```
RCT_EXPORT_METHOD(foo:(RCTSound*) sound)
{
//...
}
```
```
interface RCTConvert (RCTSound)
+ (RCTSound *) RCTSound: (NSDictionary *) dict;
end
implementation RCTConvert (RCTSound)
+ (RCTSound *) RCTSound: (NSDictionary *) dict
{
//...
}
end
```
```
export interface Spec extends TurboModule {
+foo: (dict: Object) => void,
}
```
With this setup, when we call the foo method on the TurboModule in JS, we'd first convert `dict` from a JS Object to an `NSDictionary`. Then, because the `foo` method has an argument of type`RCTSound*`, and because `RCTConvert` has a method called `RCTSound`, before we invoke the `foo` NativeModule native method, we first convert the `NSDictionary` to `RCTSound` using `[RCTConvert RCTSound:obj]`. Essentially, if an argument type of a TurboModule method is neither a primitive type nor a struct (i.e: is an identifier), and it corresponds to a selector on `RCTConvert`, we call `[RCTConvert argumentType:obj]` to convert `obj` to the type `argumentType` before passing in `obj` as an argument to the NativeModule method call.
**Note:** I originally planned on using `NSMethodSignature` to get the argument types. Unfortunately, while the Objective C Runtime lets us know that the type is an identifier, it doesn't inform us which identifier it is. In other words, at runtime, we can't determine whether identifier represents `RCTSound *` or some other Objective C class. I figure this also the reason why the old code relies on the `RCT_EXPORT_METHOD` macros to implement this very same feature: https://git.io/fjJsC. It uses `NSMethodSignature` to switch on the argument type, and then uses the `RCTMethodInfo` struct to parse the argument type name, from which it constructs the RCTConvert selector.
One caveat of the current solution is that it won't work work unless we decorate our TurboModule methods with `RCT_EXPORT_METHOD`.
Reviewed By: fkgozali
Differential Revision: D14582661
fbshipit-source-id: 3c7dfb2059f031dba7495f12cbdf406b14f0b5b4
Summary:
Before invoking TurboModule ObjC methods, we loop through all the arguments and transform them from `jsi::Value` to ObjC data structures. `jsi::Value`s that represent JS Objects get converted to `NSDictionary`s in ObjC. This isn't good enough because `NSDictionary` isn't typed. What we really need is a C/C++ struct that represents the type of the JS Object.
Therefore, for every argument of a TurboModule method that is a JS Object, this diff allows you to specify a method on `RCTCxxConvert` (which you have to declare and implement) that transforms that type of JS Object into something else. Basically, with the changes in this diff, we'll be able to transform JS Objects into C++ struct instances, which gives us type safety for JS Object method argumetns to TurboModule functions.
I modified the codegen to also create a mapping from NativeModule method name => argument num => `RCTCxxModule` conversion selector. This way, the FB codegen that generates the `RCTCxxConversion` function also informs our TurboModule system which conversion function to use before we call the method requiring complex argument. I just had to extend the `ObjCTurboModule` class to accomplish this.
The old system relies on the additional method generated by `RCT_EXPORT_METHOD` macro. It takes the written code, does string processing on it to parse the type of the struct arguments, and then replaces all instances of `::` with `_`. Super hacky. I didn't take this approach because it seemed unnecessarily hacky brittle.
The other approach I considered was to try to use reflection to infer the type of the struct at runtime. We'd have to do a bit of string processing and concat the TurboModule class name with the struct type. The solution would be simpler because it'd only modify the objective C and it wouldn't touch the Codegen system. **Edit:** I implemented it here: D14513078. The one downside of this design is that the name of the conversion function is individually constructed in two different locations in the code (i.e: no source of truth for this name). The other downside is that we have to rely on `RCTBridgeModuleNameForClass`, which we want to eliminate. This also computationally more expensive since it requires string processing/regex parsing and additional reflection. Therefore, we decided to move on with the current solution.
Reviewed By: fkgozali
Differential Revision: D14513429
fbshipit-source-id: 3d1b87e02ee908a19305686ff82b2ed624d8ac67
Summary: [iOS] [Fixed] - The existing logic defaults `undefined` & `null` in JS to be `[NSNull null]` when converting JS object to `NSDictionary`. Let's not insert the prop to the dictionary if it's `undefined`.
Reviewed By: blairvanderhoof
Differential Revision: D14571128
fbshipit-source-id: e03c713b055672b0a001d3305d694912ee36ab36
Summary:
JSBigString was inadvertently changed to a shared mapping. This means
that any changes to the string will be written back to the file. Ensure
we have a private (COW) mapping.
Reviewed By: kodafb
Differential Revision: D14532757
fbshipit-source-id: 6afb9635493496c90904f1432847c2f0da882c58
Summary: Conceptually, this assert is correct, however, sometimes a new node got allocated by same address as old parent node (which does not exist already) which makes the assert fires.
Reviewed By: mdvacca
Differential Revision: D14533070
fbshipit-source-id: 3fcc71c25e7d724180dc85aaf2457227d22ddba0
