| Contributing to the Flutter engine |
| ================================== |
| |
| [][build_status] |
| |
| _See also: [Flutter's code of conduct][code_of_conduct]_ |
| |
| Welcome |
| ------- |
| |
| For an introduction to contributing to Flutter, see [our contributor |
| guide][contrib_guide]. |
| |
| For specific instructions regarding building Flutter's engine, see [Setting up |
| the Engine development environment][engine_dev_setup] on our wiki. Those |
| instructions are part of the broader onboarding instructions described in the |
| contributing guide. |
| |
| ### Style |
| |
| The Flutter engine follows Google style for the languages it uses: |
| - [C++](https://google.github.io/styleguide/cppguide.html) |
| - [Objective-C](https://google.github.io/styleguide/objcguide.html) (including |
| [Objective-C++](https://google.github.io/styleguide/objcguide.html#objective-c)) |
| - [Java](https://google.github.io/styleguide/javaguide.html) |
| |
| C++ and Objective-C/C++ files are formatted with `clang-format`, and GN files with `gn format`. |
| |
| [build_status]: https://cirrus-ci.com/github/flutter/engine |
| [code_of_conduct]: https://github.com/flutter/flutter/blob/master/CODE_OF_CONDUCT.md |
| [contrib_guide]: https://github.com/flutter/flutter/blob/master/CONTRIBUTING.md |
| [engine_dev_setup]: https://github.com/flutter/flutter/wiki/Setting-up-the-Engine-development-environment |
| |
| ### Fuchsia Contributions from Googlers |
| |
| Googlers contributing to Fuchsia should follow the additional steps at: go/flutter-fuchsia-pr-policy. |
