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Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/36030 Generate enum types in c++ turbo modules. For enums in the ts schema file such as: ``` export enum NumEnum { ONE = 1, TWO = 2, } ``` This would export enums and the relevant Bridging to js and from js code to the spec H files such as: ``` #pragma mark - SampleTurboModuleCxxNumEnum enum SampleTurboModuleCxxNumEnum { ONE, TWO }; template <> struct Bridging<SampleTurboModuleCxxNumEnum> { static SampleTurboModuleCxxNumEnum fromJs(jsi::Runtime &rt, int32_t value) { if (value == 1) { return SampleTurboModuleCxxNumEnum::ONE; } else if (value == 2) { return SampleTurboModuleCxxNumEnum::TWO; } else { throw jsi::JSError(rt, "No appropriate enum member found for value"); } } static jsi::Value toJs(jsi::Runtime &rt, SampleTurboModuleCxxNumEnum value) { if (value == SampleTurboModuleCxxNumEnum::ONE) { return bridging::toJs(rt, 1); } else if (value == SampleTurboModuleCxxNumEnum::TWO) { return bridging::toJs(rt, 2); } else { throw jsi::JSError(rt, "No appropriate enum member found for enum value"); } } }; ``` That code would allow us to use these enums in the cxx files like this: ``` NativeCxxModuleExampleCxxEnumInt getNumEnum( jsi::Runtime &rt, NativeCxxModuleExampleCxxEnumInt arg); ``` Changelog: [General] [Added] Generate enum types that would be allowed to be used as well as string/number in c++ turbo modules generators Reviewed By: christophpurrer Differential Revision: D42884147 fbshipit-source-id: d34d1fc7ba268b570821dc108444196f69a431b2
@react-native/codegen
Installation
yarn add --dev @react-native/codegen
Note: We're using yarn to install deps. Feel free to change commands to use npm 3+ and npx if you like
Testing
To run the tests in this package, run the following commands from the react Native root folder:
yarnto install the dependencies. You just need to run this onceyarn jest react-native-codegen.