Swift

The Swift generator emits a SwiftPM System Library (CWeaveFFI) that references the generated C header and a thin Swift module (WeaveFFI) that wraps the C API with Swift types and throws-based error handling.

Generated artifacts

• generated/swift/Package.swift
• generated/swift/WeaveFFI/module.modulemap – points at ../c/weaveffi.h
• generated/swift/Sources/WeaveFFI/WeaveFFI.swift – thin wrapper

Try the example app

# Build the Rust sample
cargo build -p calculator

cd examples/swift
swiftc \
  -I ../../generated/swift/Sources/CWeaveFFI \
  -L ../../target/debug -lcalculator \
  -Xlinker -rpath -Xlinker ../../target/debug \
  Sources/App/main.swift -o .build/debug/App
DYLD_LIBRARY_PATH=../../target/debug .build/debug/App

Integration via SwiftPM in a real app can be done by adding the System Library and linking it with your target; see the module map for header linkage and name.