export swift module with turbo modules to react-native

[gurkan-baykan]

Description

Is it possible to call my swift modules with turbo modules without a bridge by react-native, codegen can generate the c++ code needed by turbo modules for swift modules, if it possible , can you show example

Steps to reproduce

no

React Native Version

0.76.5

Affected Platforms

Runtime - iOS

Areas

TurboModule - The New Native Module System

Output of npx react-native info

System:
  OS: macOS 14.2
  CPU: (12) arm64 Apple M2 Pro
  Memory: 1.43 GB / 32.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 22.0.0
    path: ~/.nvm/versions/node/v22.0.0/bin/node
  Yarn:
    version: 3.6.4
    path: /usr/local/bin/yarn
  npm:
    version: 10.5.1
    path: ~/.nvm/versions/node/v22.0.0/bin/npm
  Watchman:
    version: 2024.08.12.00
    path: /usr/local/bin/watchman
Managers:
  CocoaPods: Not Found
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 23.4
      - iOS 17.4
      - macOS 14.4
      - tvOS 17.4
      - visionOS 1.1
      - watchOS 10.4
  Android SDK:
    Android NDK: 22.1.7171670
IDEs:
  Android Studio: 2024.2 AI-242.23339.11.2421.12550806
  Xcode:
    version: 15.3/15E204a
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 20.0.2
    path: /usr/bin/javac
  Ruby:
    version: 3.2.2
    path: /Users/gurkan/.rvm/rubies/ruby-3.2.2/bin/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 15.0.0
    wanted: 15.0.0
  react:
    installed: 18.3.1
    wanted: 18.3.1
  react-native:
    installed: 0.76.1
    wanted: 0.76.1
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true

Stacktrace or Logs

no error

Reproducer

https://github.com/react-native-community/reproducer-react-native.git

Screenshots and Videos

No response

[react-native-bot]

Warning

Missing reproducer: We could not detect a reproducible example in your issue report. Please provide either:

• If your bug is UI related: a Snack
• If your bug is build/upgrade related: a project using our Reproducer Template
• Otherwise send us a Pull Request with the RNTesterPlayground.js edited to reproduce your bug.

[cipolleschi]

Hi @gurkan-baykan, thanks for the question.
It is currently not possible to do that. Codegen generates an objective-C++ interface for the module that contains some pure C++ code. Currently, it is not possible for Swift to directly import a header file that contains pure C++ code.

If you have a module in Swift, you need to wrap it inside an Objective-C++ wrapper that implements the Objective-C++ interface generate by codegen and forwards calls to the Swift implementation.

[gurkan-baykan]

so I need to create a bridge structure to call a swift module, am I correct?

Hi @gurkan-baykan, thanks for the question. It is currently not possible to do that. Codegen generates an objective-C++ interface for the module that contains some pure C++ code. Currently, it is not possible for Swift to directly import a header file that contains pure C++ code.

If you have a module in Swift, you need to wrap it inside an Objective-C++ wrapper that implements the Objective-C++ interface generate by codegen and forwards calls to the Swift implementation.