Contributing to the Flutter engine

See also: Flutter's code of conduct

Welcome

For an introduction to contributing to Flutter, see our contributor guide.

For specific instructions regarding building Flutter's engine, see Setting up the Engine development environment 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++
• Objective-C (including Objective-C++)
• Java

C++ and Objective-C/C++ files are formatted with clang-format, and GN files with gn format.

Fuchsia Contributions from Googlers

Googlers contributing to Fuchsia should follow the additional steps at: go/flutter-fuchsia-pr-policy.