Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/53135
Our Codegenerated components are not generating code for `getDebugProps`. This change modifies Codegen to add those functions for all the codegen components.
## Changelog:
[General][Added] - Added getDebugProps to codegen
## Facebook:
`getDebugProps` are required by Fantom to write tests. However, we can't generate these function for third party components, because codegen can generate arbitrary structs and we don't have a generic `toString()` method that can be used or automatically generated by C++.
By generating this function only for Core Components, we can ensure that we can write Fantom tests without breaking all the users of React Native.
Reviewed By: rubennorte
Differential Revision: D79805145
fbshipit-source-id: 0e41c65fc30eaa886a05557ca233fb0a9cb18a71
Summary:
The `Object.assign` support is [inherently unsound](https://github.com/facebook/flow/issues/3392), carries a lot of tech debt, and we want to error on them.
This diff pre-suppresses errors that will be added in the next version of Flow, to make the next release easier.
Changelog: [Internal]
Reviewed By: panagosg7
Differential Revision: D73963639
fbshipit-source-id: ebefc82c123588eb0b72ab48a24e45c42be33267
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49792
This removes the `$` from the `event` and `payload` identifier inside codegen.
This is causing the `-Wdollar-in-identifier-extension` warning to fire.
As I'm looking into enabling `-Wall -Werror` for React Common, this should be addressed as well.
Changelog:
[Internal] [Changed] -
Reviewed By: cipolleschi
Differential Revision: D70500543
fbshipit-source-id: c593680961b1b98561c3985f92ade5d6ba448ac9
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48343
components store unions as 'StringEnumTypeAnnotation' even though it isn't actually a union, it's a literal.
Native Modules store these as 'StringLiteralTypeAnnotation' so this converges those and reuses the same types.
Changelog: [Internal]
Reviewed By: cipolleschi
Differential Revision: D67427656
fbshipit-source-id: e39028114285588584596012d07db40c117b4b94
Summary:
This PR fixes the code for generating EventEmitter C++ code in case nested objects in arrays are used.
```typescript
export interface NativeProps extends ViewProps {
onEvent: DirectEventHandler<
Readonly<{
payloadArray: Readonly<
{
obj: Readonly<{ str: string }>
}[]
>
}>
>;
}
export default codegenNativeComponent<NativeProps>('SomeComponent');
```
In this case the generated `EventEmitters.cpp` code would contain:
```c
obj.setProperty(runtime, "str", payloadArrayValue,obj.str);
```
while
```c
obj.setProperty(runtime, "str", payloadArrayValue.obj.str);
```
is expected.
## Changelog:
<!-- Help reviewers and the release process by writing your own changelog entry.
Pick one each for the category and type tags:
[ANDROID|GENERAL|IOS|INTERNAL] [BREAKING|ADDED|CHANGED|DEPRECATED|REMOVED|FIXED|SECURITY] - Message
For more details, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->
[GENERAL] [FIXED] - Codegen: Support nested objects in arrays
Pull Request resolved: https://github.com/facebook/react-native/pull/47514
Test Plan: Tested with the reproduction case above to verify correct output.
Reviewed By: javache
Differential Revision: D65848670
Pulled By: elicwhite
fbshipit-source-id: 0021e87bc7213fff615465cab8554cc1a2159522
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/42812
There is a way of defining events where you specify additional string type parameter in the EventHandler in the spec. This additional type parameter is an overridden top level event name, that can be completely unrelated to the event handler name.
More context here D16042065.
Let's say we have
```
onLegacyStyleEvent?: ?BubblingEventHandler<LegacyStyleEvent, 'alternativeLegacyName'>
```
This will produce the following entry in the view config:
```
topAlternativeLegacyName: {
phasedRegistrationNames: {
captured: 'onLegacyStyleEventCapture',
bubbled: 'onLegacyStyleEvent'
}
}
```
This means that React expects `topAlternativeLegacyName`.
But the generated EventEmitter looks like this:
```
void RNTMyNativeViewEventEmitter::onLegacyStyleEvent(OnLegacyStyleEvent $event) const {
dispatchEvent("legacyStyleEvent", [$event=std::move($event)](jsi::Runtime &runtime) {
auto $payload = jsi::Object(runtime);
$payload.setProperty(runtime, "string", $event.string);
return $payload;
});
}
```
The native component will emit `legacyStyleEvent` (`topLegacyStyleEvent` after normalization) that React will not be able to handle.
This issue only happens on iOS because Android doesn't use EventEmitter currently.
To address this issue we'll use `paperTopLevelNameDeprecated` for the generated EventEmitters if it is defined.
Changelog: [iOS][Fixed] - Fixed support for event name override in component specs.
Reviewed By: cortinico, mdvacca, cipolleschi
Differential Revision: D53310654
fbshipit-source-id: 018d5b11d8d36e2ecf900b9d8d6fe3e2ed71f80b
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/42956
In the component codegen system, when the header prefix is an empty string, we generate includes using angle brackets, like this:
```
#include <EventEmitter.h>
```
This fails to compile in buck.
If we instead generate includes using quotations, buck compiles again.
```
#include "EventEmitter.h"
```
So, changes: if the headerPrefix is an empty string, generate includes using quotes.
This is a followup to D51811596.
Changelog: [Internal]
Reviewed By: fkgozali, dmytrorykun
Differential Revision: D53487111
fbshipit-source-id: e90a8b9fd4f8a2a93a0f4ad0ed989af26ad122c5
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/41956
By default, generated Cxx sources for components all end up in same directory. However the include declarations in them look like this:
```
#include <react/renderer/components/${libraryName}/ShadowNodes.h>
```
And not like this:
```
#include "ShadowNodes.h"
```
This works fine with Buck because it supports header prefixes.
To get this working with CocoaPods we define additional `HEADER_SEARCH_PATHS` for our `React-Codegen` pod.
This approach will not work if we want to generate code at the library level and check in the artifacts. That's because we don't have control over the Podspec there, and can't inject those additional `HEADER_SEARCH_PATHS`.
This diff adds the `headerPrefix` argument to the codegen entry point. It is `react/renderer/components/${libraryName}` by default, but can become empty if we want to generate code at the library level, and don't want to deal with this nested header structure.
*Note:* `RNCodegen` runs all the generators [in a loop](https://github.com/facebook/react-native/blob/main/packages/react-native-codegen/src/generators/RNCodegen.js#L263-L275), assuming that the all have same function signature So I had to add the `headerPrefix` argument to all the generators, even to the ones that don't really need it.
Changelog: [General][Added] - Introduce "headerPrefix" codegen option.
Reviewed By: zeyap
Differential Revision: D51811596
fbshipit-source-id: c5c3e1e571c7c4ea2f5354eb9a7b0df6b917fc0c
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/39540
This simplifies the use of Codegen when creating dev builds of `rn-tester` in the monorepo. It now runs from source for this internal scenario, and this package is now built using the shared monorepo build setup.
Changes:
- Migrate `packages/react-native-codegen` to the shared `yarn build` setup.
- Update package to use `"exports"` field and wrap entry point modules with `babel-register` (NOTE: This is only required for each entry point internally used in the monorepo).
- Fixup small Flow syntax quirks that fail under `hermes-parser`.
- Remove `BuildCodegenCLITask` task from Android build.
- Remove Codegen `build.sh` call from iOS build, use `require.resolve` for `combine-js-to-schema-cli.js` entry point.
Externally significant FYIs:
- `react-native/codegen` is converted to use the `"exports"` field — it should export all `.js` files, as before.
- `codegenPath` is now ignored and marked as deprecated on `ReactExtensions.kt`.
NOTE: TypeScript auto-generation is not yet enabled on this package, since it uses CommonJS `module.exports` syntax (unsupported by `flow-api-translator`).
Changelog: [Internal]
Reviewed By: cipolleschi
Differential Revision: D49370200
fbshipit-source-id: 992913155169912ea1a3cb24cb26efbd3f783058
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/37145
This diff adds the generation of Array types in events.
It supports the generation of Array of:
- Boolean
- Int32
- Float
- Double
- String
- Objects
- Array
**Note:** This is a first iteration. We could improve the generation further by leveraging the `Bridging` module within React Native.
I'll take a stab at it in a next diff.
## Changelog:
[General][Added] - Generate events with arrays
Reviewed By: cortinico
Differential Revision: D45321685
fbshipit-source-id: 34b05f5501b06714d1fabf1a51cb057af7027f00
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36591
If any of the properties used in event-emitter codegen conflict with `event` or `payload`, the generated code will fail to build, even if this generated code isn't used. Since these are quite common keys, prefix them with `$` (still valid C++) to avoid conflicts.
Changelog: [General][Fixed] Resolved property name conflicts in event-emitter codegen
Reviewed By: cipolleschi
Differential Revision: D44274619
fbshipit-source-id: 45e67850c49e082d8f9b1f85bb632d45a9fd4f1d
Summary:
Changelog: [Internal]
While working on implementing [Event Timing API](https://www.w3.org/TR/event-timing/) I've noticed that there are multiple compiler warnings about unused lambda captures, which are coming from generated C++ code for EventEmitters.
This modifies the codegen so that the corresponding lambda doesn't capture event variable if it's not used in the event handler, thus getting rid of warnings.
Reviewed By: christophpurrer
Differential Revision: D42281899
fbshipit-source-id: 98442bb9f3ce374755188d818a9b2d6a8050bf15
Summary: Add annotations to function parameters required for Flow's Local Type Inference project. This codemod prepares the codebase to match Flow's new typechecking algorithm. The new algorithm will make Flow more reliable and predicatable.
Reviewed By: evanyeung
Differential Revision: D37353648
fbshipit-source-id: e5a0c685ced85a8ff353d578b373f836b376bb28
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/32840Closes#31516
I've cherry-picked the original PR that had merge conficts + updated all
the headers as the one for the TurboModule generators were not handled.
Original Commit Message from acoates
The codegen generates a Facebook copyright notice at the top of the generated files.
While this might make sense on the core files, this codegen will be run on external components too.
The notice also refers to a LICENSE file in the root of this project, which might not be there if this is run on another project.
I did a quick look at some of the codegen that we ship within windows dev tools, and it looks like we normally just have comments
saying the file was codegen'd and so the file shouldn't be manually edited.
Open to suggestions on what the comment header should say.
Changelog:
[General] [Changed] - Do not include Facebook license on users codegen'd code
Reviewed By: ShikaSD
Differential Revision: D33455176
fbshipit-source-id: b247e72efb242e79d99b388c80e4126633e5234d
Summary:
## Rationale
**Disclaimer**: This is an incremental step towards more maintainable/readable react-native-codegen generators. In the future, we may want to replace these templates/string concat logic with *something better*. But until we decide what that *something better* is, let's at least get rid of all this gross string find/replace.
Benefits of using Function templates over String.prototype.replace.
- **Self-documenting**: Template Functions enumerate/describe their exact data dependencies in their signature. You no longer have to read the template implementation to see what data you need to pass into the template.
- **Improved Readability**: JavaScript syntax highlighting makes it really easy to see where/how the data is inserted into the templates. Also template variables used be prefixed/suffixed with ::, which made things really confusing in C++ code (e.g: wtf is `::_CLASSNAME_::EventEmitter::::_EVENT_NAME_::`?).
- **Simpler Interpolation**: Don't have to worry about .replaceAll vs .replace, or calling these replace functions with regexes or strings.
- **Template Type-safety**: Ensure that the correct data types are passed to the component templates (e.g: flow will complain if you accidentally pass null/undefined when a template expects a string).
- **Template Type-safety**: Ensure that we don't pass in extra data to templates (this diff catches/fixes instances of this error). Ensure that we don't forget to pass in data to the template.
- etc.
After this diff, both our Component and NativeModule generators will be using template functions. This string find/replace exists no more in react-native-codegen.
This is also a very surface-level change. I made no efforts to simplify these templates. Let's take a look at that later, as necessary.
Changelog: [Internal]
Reviewed By: yungsters
Differential Revision: D32021441
fbshipit-source-id: f8f27069bcbf9d66dcafb7d1411da1f938eb6dcd
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/31543
Changelog:
[iOS][Added] - Description
When compiling iOS apps with flag `-Wnullability-completeness` (like Lightspeed app and soon Instagram), Objective-C headers are required to either have full *explicit* nullability annotations on all members of its public API, or none at all; partially annotated headers will fail to build that module.
RN native modules are currently generated with *partial* annotations. This works today because most apps are not compiled with `-Wnullability-completeness` turned on. But when we flip the switch for Instagram, the app doesn't build due to importing these RN partially annotated modules.
JavsScript Flow types are implied nonnull, and the current RN codegen translates Flow's [maybe/optional](https://flow.org/en/docs/types/maybe/) type to Obj-C `_Nullable` annotation, and everything else without an explicit Obj-C annotation. However this creates a mismatch with the Obj-C type system, where the implied default is *unannotated*, which is handled differently from nonnull when built with the nullability compiler flags.
There is a simple Obj-C macro that automatically adds *explicit nonnull* annotations to all members in a header: `NS_ASSUME_NONNULL_BEGIN` / `NS_ASSUME_NONNULL_END`. If we add this to *all* RN-generated headers, however, we run into issues:
1) We may erroneously assume any previously-unannotated header was meant to be nonnull and cause future bugs
2) Another compiler flag (`-Wnullable-to-nonnull-conversion`) statically analyzes Obj-C implementation code to prevent us from ever passing null to one of these headers. Much existing Obj-C code will break here, and it's ambiguous if these are true or false positives because of the first point.
Instead, in this diff we add a new BUCK flag `ios_assume_nonnull` to let module authors opt into automatic nonnull for unannotated members so that Obj-C headers are generated correctly in alignment with Flow's type system. We can migrate all libraries individually as needed and eventually make this the RN native codegen default.
Reviewed By: RSNara
Differential Revision: D28396446
fbshipit-source-id: ad3a3a97ab19183df4ef504b1c3140596c8f69ca
Summary:
All throughout the Codegen schema, we re-declare the following shape:
```
{
type: 'ObjectTypeAnnotation',
properties: $ReadOnlyArray<{
name: string,
optional: boolean,
typeAnnotation: ...
}>
}
```
This diff introduces an `ObjectTypeAnnotation<T>` utility type and replaces those re-declarations with instantiations of this type.
**Motivation:** To reduce noise in the CodegenSchema. This should be a pure refactor, and shouldn't actually change any behaviour.
Changelog: [Internal]
Reviewed By: yungsters
Differential Revision: D24707963
fbshipit-source-id: 6b4eb711ddd041f3a041109ade5ad5644fb16924
Summary:
All ObjectTypeAnnotation *properties* in the codegen have the following shape:
```
{
name: string,
optional: boolean,
typeAnnotation: ...
}
```
EventObjectTypeProperty is a property of some ObjectTypeAnnotation, yet it doesn't follow this pattern. This diff cleans up EventObjectPropertyType. This is a part of a larger effort to clean up the Component Schema and unify the notion of a "type annotation" across the Component and Module schemas.
Reviewed By: yungsters
Differential Revision: D24701027
fbshipit-source-id: edc7dc632a217fb5a82ffd8a62aef990baf398c2
Summary:
For now, separate the definition of `modules` generator per platform to avoid file output collision. Additionally:
* For Android, produce files under java/ (plus nested subdirs based on packageName) and jni/ (for C++ files) - JavaPoet version already does it
* Allow configuring packageName for Android - JavaPoet version has this
* Avoid tmp directory dance in the CLI script, given the proper modules separation
Changelog: [Internal]
Reviewed By: hramos
Differential Revision: D24410864
fbshipit-source-id: 9bd6bc1d65bec037bfca32ec478f3af50d72e927
Summary:
NOTE: Flow and Jest won't pass on this diff. Sandcastle, should, however, be green on D24236405 (i.e: the tip of this stack).
## Changes
Previously, the "Module" schema could either contain a `components` property, or a `nativeModules` property. The existence of the `components` property was used to determine (1) if the generators would run and (2) filter schemas on which the generators would run. Now, we simply check whether the type of the "Module" schema is `Component`.
Changelog: [Internal]
(Note: this ignores all push blocking failures!)
Reviewed By: PeteTheHeat
Differential Revision: D24236508
fbshipit-source-id: 68cb3f25178b6757c9a4aee767bb6173db4932a6
Summary:
This diff moves fabric C++ code from ReactCommon/fabric to ReactCommon/react/renderer
As part of this diff I also refactored components, codegen and callsites on CatalystApp, FB4A and venice
Script: P137350694
changelog: [internal] internal refactor
Reviewed By: fkgozali
Differential Revision: D22852139
fbshipit-source-id: f85310ba858b6afd81abfd9cbe6d70b28eca7415
Summary:
Straightforward rename to clarify the purpose of this type.
Changelog: [Internal]
Reviewed By: TheSavior
Differential Revision: D21160790
fbshipit-source-id: eaf5e8c9f51e16134e153a6321857234be1aa338
Summary:
This gets us on the latest Prettier 2.x:
https://prettier.io/blog/2020/03/21/2.0.0.html
Notably, this adds support for TypeScript 3.8,
which introduces new syntax, such as `import type`.
Reviewed By: zertosh
Differential Revision: D20636268
fbshipit-source-id: fca5833d003804333a05ba16325bbbe0e06d6c8a
Summary:
In codegen we generate structs that represents events. These structs are later dispatched by generated `EventEmitter`.
They had unpleasant naming, for example `SliderOnValueChangeStruct`. This diff changes the code generated so it becomes `SliderEventEmitter::OnValueChange`, this better expresses the relationship of the two classes.
Changelog: [Internal]
Motivation: Better express relationship between EventEmitter and classes that represent events.
Reviewed By: rickhanlonii, shergin
Differential Revision: D19373850
fbshipit-source-id: a5eea085013dbc119169e2b06ba9f9fe44c7fcd9
Summary:
We are rolling out exact-by-default syntax to xplat/js.
I had to manually move around some comments to preserve proper placement.
Changelog: [Internal]
Reviewed By: jbrown215
Differential Revision: D18633611
fbshipit-source-id: 48f7468dcc55b1d00985419d035a61c6820b3abe
Summary: I realized my previous diff was incomplete. Adding parsing and generation code for Double for props, commands, and events.
Reviewed By: rickhanlonii
Differential Revision: D16823540
fbshipit-source-id: fbed9897bb84b789c502cf4153e81060590152b8
Summary: We'll need this helper in the prop files now so let's move it over to the generic cpp helpers
Reviewed By: TheSavior
Differential Revision: D16759164
fbshipit-source-id: 8765ffee3bd8219b5f0dc8677362ec45f0a8e2c5
Summary:
Following our internal discussion we want to change previously used name convention.
Now it looks like:
```
#import <FBReactNativeTestSpec/FBReactNativeTestSpec.h>
```
Name is a param of `rn_codegen` and `rn_library`. Also, I found it the easiest to move replacing `::_IMPORT_::` into buck rule
Reviewed By: fkgozali
Differential Revision: D16646616
fbshipit-source-id: 2c33c5b4d1c42b0e6f5a42d9a318bd8bda9745f4
Summary: Code generators for modules and components don't have a lot of in common so there's no point to keepo them in the same directory and mix their files.
Reviewed By: rickhanlonii
Differential Revision: D16183434
fbshipit-source-id: b6ee32c6b223e8d6e4bc843b2e111598bee94dc5
Riccardo Cipolleschi
Sam Zhou
Nicola Corti
Eli White
Tom Van Laerhoven
Dmitry Rykun
Ramanpreet Nara
Christoph Purrer
Moti Zilberman
Gijs Weterings
Alex Hunt
Genki Kondo
Pieter De Baets
Ruslan Shestopalyuk
Pieter Vanderwerff
Nicola Corti
Andres Suarez
Tim Yung
Ramanpreet Nara
Erich Graham
Kevin Gozali
David Vacca
Michael Bolin
Samuel Susla
George Zahariev
Joshua Gross
Rick Hanlon
Michał Osadnik
Min ho Kim