Rust FFI

Boilerplate project to make:

• iOS / MacOS:

  xcframework/Swift Package of Rust crate for apple platform

• Android: ( Not yet implemented - PR is welcomed )

Prerequisites

iOS / Darwin

• Rust (confirmed with 1.65.0)

  • targets (all has been set in build.sh)
    • aarch64-apple-darwin
    • x86_64-apple-darwin
    • x86_64-apple-ios
    • aarch64-apple-ios
    • aarch64-apple-ios-sim

• Xcode (confirmed with 14.1)

• uniffi_bindgen

  $ cargo install uniffi_bindgen
  

Compose UDL file

Compose your own lib.udl file.

Build

# debug build
bash build.sh debug

# release build
bash build.sh

Integrations

Use in Xcode

1. Package Dependencies -> Add -> Add Local -> ( Select package folder under generated iOS directory )
2. Targets -> General -> Frameworks, Libraries, and Embeded Content -> ( Select your framework )
3. ( Import in your Swift code )

Repository Tree Memo

.
├── Cargo.toml
├── generate (generated target folder)
│         └── iOS/Mac
│               └── MyPkg (generated Swift package)
├── build.rs
├── build.sh (build script)
├── misc (required files to create xcframework)
│         ├── Info.plist
│         └── Package.swift (Swift package descriptor template)
└── src (sources written in Rust)
    ├── lib.rs
    └── lib.udl (udl file. see uniffi-rs)