mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ramanpreet Nara
cb7f3f4499
Summary:
## Android API
```
// Before we initialize TurboModuleManager
ReactFeatureFlags.useTurboModuleJSCodegen = true
```
## iOS API
```
// Before we initialize RCTBridge
RCTEnableTurboModuleJSCodegen(true);
```
## How is the JS Codegen actually enabled?
The above native flags are translated to the following global variable in JavaScript:
```
global.RN$JSTurboModuleCodegenEnabled = true;
```
Then, all our NativeModule specs are transpiled to contain this logic:
```
interface Foo extends TurboModule {
// ...
}
function __getModuleSchema() {
if (!global.RN$JSTurboModuleCodegenEnabled) {
return undefined;
}
// Return the schema of this spec.
return {...};
}
export default TurboModuleRegistry.get<Foo>('foo', __getModuleSchema());
```
Then, in our C++ JavaTurboModule, and ObjCTurboModule classes, we use the TurboModule JS codegen when the jsi::Object schema is provided from JavaScript in the TurboModuleRegistry.get call.
Changelog: [Internal]
Reviewed By: PeteTheHeat
Differential Revision: D24636307
fbshipit-source-id: 80dcd604cc1121b8a69df875bbfc87e9bb8e4814
60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <string>
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#include <ReactCommon/TurboModule.h>
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#include <jsi/jsi.h>
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namespace facebook {
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namespace react {
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class JSCallInvoker;
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/**
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* Represents the JavaScript binding for the TurboModule system.
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*/
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class TurboModuleBinding {
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public:
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/*
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* Installs TurboModuleBinding into JavaScript runtime.
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* Thread synchronization must be enforced externally.
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*/
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static void install(
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jsi::Runtime &runtime,
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const TurboModuleProviderFunctionType &&moduleProvider,
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bool enableJSTurboModuleCodegen);
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TurboModuleBinding(const TurboModuleProviderFunctionType &&moduleProvider);
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virtual ~TurboModuleBinding();
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/**
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* Get an TurboModule instance for the given module name.
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*/
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std::shared_ptr<TurboModule> getModule(
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const std::string &name,
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const jsi::Value *schema);
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private:
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/**
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* A lookup function exposed to JS to get an instance of a TurboModule
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* for the given name.
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*/
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jsi::Value jsProxy(
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jsi::Runtime &runtime,
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const jsi::Value &thisVal,
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const jsi::Value *args,
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size_t count);
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TurboModuleProviderFunctionType moduleProvider_;
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};
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} // namespace react
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} // namespace facebook
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