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Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/41645 Right now, when defining concrete structs and Bridging headers for Cxx TMs we need to define their member types twice: ``` using ConstantsStruct = NativeCxxModuleExampleCxxBaseConstantsStruct<bool, int32_t, std::string>; template <> struct Bridging<ConstantsStruct> : NativeCxxModuleExampleCxxBaseConstantsStructBridging< bool, int32_t, std::string> {}; ``` Now we only need to define those once ``` using ConstantsStruct = NativeCxxModuleExampleCxxConstantsStruct<bool, int32_t, std::string>; template <> struct Bridging<ConstantsStruct> : NativeCxxModuleExampleCxxConstantsStructBridging<ConstantsStruct> {}; ``` This change keeps the existing base types untouched - but they will be removed in the next RN version. Changelog: [Internal] Reviewed By: rshest Differential Revision: D51571453 fbshipit-source-id: 2783bd48bf786ffa80d322d06456b5d6f2d7ba8a
@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 packages/react-native-codegen.