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feat: swift bindings
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‎.github/workflows/arkdrop-swift-bindings-release.yml‎

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name: ARK Drop Swift Bindings Release
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on:
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push:
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paths:
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- "drop-core/entities/**"
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- "drop-core/exchanges/**"
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- "drop-core/uniffi/**"
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- ".github/workflows/arkdrop-swift-bindings-release.yml"
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workflow_dispatch:
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jobs:
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build-and-publish:
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runs-on: macos-latest
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permissions:
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contents: write
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packages: write
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steps:
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- uses: actions/checkout@v4
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- name: Install Rust
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uses: dtolnay/rust-toolchain@stable
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with:
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targets: aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim,x86_64-apple-darwin,aarch64-apple-darwin
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- uses: Swatinem/rust-cache@v2
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with:
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workspaces: drop-core/uniffi
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- name: Install Xcode Command Line Tools
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run: |
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xcode-select --install 2>/dev/null || true
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xcode-select -p
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- name: Generate Swift Bindings
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working-directory: ./drop-core/uniffi/bindings/swift
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run: |
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chmod +x generate-bindings.sh
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./generate-bindings.sh
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- name: Build XCFramework
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working-directory: ./drop-core/uniffi/bindings/swift
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run: |
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chmod +x build-xcframework.sh
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./build-xcframework.sh
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- name: Create Swift Package Archive
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working-directory: ./drop-core/uniffi/bindings/swift
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run: |
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# Create a distributable package
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mkdir -p ArkDrop-Swift-Package
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cp -r arkdrop_uniffiFFI.xcframework ArkDrop-Swift-Package/
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cp drop.swift ArkDrop-Swift-Package/
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cp Package.swift ArkDrop-Swift-Package/
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cp arkdrop_uniffiFFI.h ArkDrop-Swift-Package/
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# Create a zip archive
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zip -r ArkDrop-Swift-Package.zip ArkDrop-Swift-Package/
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# Also create a checksum
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shasum -a 256 ArkDrop-Swift-Package.zip > ArkDrop-Swift-Package.zip.sha256
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- name: Upload Build Artifacts
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uses: actions/upload-artifact@v4
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with:
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name: swift-bindings
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path: |
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drop-core/uniffi/bindings/swift/ArkDrop-Swift-Package.zip
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drop-core/uniffi/bindings/swift/ArkDrop-Swift-Package.zip.sha256
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retention-days: 30
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- name: Create Release
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if: github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/'))
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uses: softprops/action-gh-release@v2
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with:
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tag_name: swift-bindings-${{ github.run_id }}
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name: Swift Bindings Release ${{ github.run_id }}
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draft: false
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prerelease: false
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files: |
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drop-core/uniffi/bindings/swift/ArkDrop-Swift-Package.zip
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drop-core/uniffi/bindings/swift/ArkDrop-Swift-Package.zip.sha256
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body: |
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## Swift Bindings for ARK Drop
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This release contains the Swift bindings for ARK Drop, including:
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- XCFramework for iOS (device and simulator) and macOS
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- Swift source files
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- Swift Package Manager configuration
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### Installation
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#### Swift Package Manager
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1. Download and extract `ArkDrop-Swift-Package.zip`
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2. Add the package to your Xcode project or include it in your `Package.swift`:
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```swift
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dependencies: [
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.package(path: "path/to/ArkDrop-Swift-Package")
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]
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```
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#### Manual Installation
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1. Download `ArkDrop-Swift-Package.zip`
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2. Extract and add `arkdrop_uniffiFFI.xcframework` to your Xcode project
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3. Add `drop.swift` to your project sources
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### Verification
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Verify the package integrity using the SHA256 checksum:
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```bash
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shasum -a 256 -c ArkDrop-Swift-Package.zip.sha256
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```
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Generated from commit: ${{ github.sha }}
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

‎drop-core/uniffi/Cargo.toml‎

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path = "uniffi-bindgen.rs"
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bench = false
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[[bin]]
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name = "uniffi-bindgen-swift"
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path = "uniffi-bindgen-swift.rs"
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bench = false
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[dependencies]
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arkdropx-sender = { path = "../exchanges/sender" }
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arkdropx-receiver = { path = "../exchanges/receiver" }

‎drop-core/uniffi/bindings/swift/.gitignore‎

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# Build artifacts
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build/
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*.xcframework
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# Generated files from uniffi-bindgen
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*.swift
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*.h
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*.modulemap
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# Swift Package Manager
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.build/
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.swiftpm/
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# Xcode
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xcuserdata/
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*.xcworkspace
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DerivedData/
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# macOS
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.DS_Store

‎drop-core/uniffi/bindings/swift/build-xcframework.sh‎

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#!/bin/bash
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set -e
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# Build the Rust library for iOS and macOS and create an XCFramework
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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UNIFFI_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
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BUILD_DIR="$SCRIPT_DIR/build"
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XCFRAMEWORK_NAME="arkdrop_uniffiFFI.xcframework"
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echo "Building Rust library for iOS and macOS..."
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# Clean previous builds
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rm -rf "$BUILD_DIR"
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rm -rf "$SCRIPT_DIR/$XCFRAMEWORK_NAME"
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mkdir -p "$BUILD_DIR"
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cd "$UNIFFI_DIR"
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# Build for iOS device (arm64)
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echo "Building for iOS (aarch64-apple-ios)..."
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cargo build --release --target aarch64-apple-ios
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# Build for iOS Simulator (x86_64 and arm64)
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echo "Building for iOS Simulator..."
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cargo build --release --target x86_64-apple-ios
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cargo build --release --target aarch64-apple-ios-sim
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# Build for macOS (x86_64 and arm64)
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echo "Building for macOS..."
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cargo build --release --target x86_64-apple-darwin
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cargo build --release --target aarch64-apple-darwin
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# Create fat libraries
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echo "Creating universal libraries..."
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mkdir -p "$BUILD_DIR/ios-simulator"
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mkdir -p "$BUILD_DIR/macos"
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lipo -create \
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"$UNIFFI_DIR/target/x86_64-apple-ios/release/libarkdrop_uniffi.a" \
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"$UNIFFI_DIR/target/aarch64-apple-ios-sim/release/libarkdrop_uniffi.a" \
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-output "$BUILD_DIR/ios-simulator/libarkdrop_uniffi.a"
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lipo -create \
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"$UNIFFI_DIR/target/x86_64-apple-darwin/release/libarkdrop_uniffi.a" \
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"$UNIFFI_DIR/target/aarch64-apple-darwin/release/libarkdrop_uniffi.a" \
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-output "$BUILD_DIR/macos/libarkdrop_uniffi.a"
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# Copy iOS device library
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mkdir -p "$BUILD_DIR/ios"
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cp "$UNIFFI_DIR/target/aarch64-apple-ios/release/libarkdrop_uniffi.a" "$BUILD_DIR/ios/"
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# Copy headers and modulemap to each platform directory
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for platform_dir in "$BUILD_DIR/ios" "$BUILD_DIR/ios-simulator" "$BUILD_DIR/macos"; do
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mkdir -p "$platform_dir/Headers"
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# Copy the C header
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if [ -f "$SCRIPT_DIR/arkdrop_uniffiFFI.h" ]; then
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cp "$SCRIPT_DIR/arkdrop_uniffiFFI.h" "$platform_dir/Headers/"
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else
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echo "Error: arkdrop_uniffiFFI.h not found. Run generate-bindings.sh first."
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exit 1
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fi
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# Copy the modulemap
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if [ -f "$SCRIPT_DIR/module.modulemap" ]; then
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cp "$SCRIPT_DIR/module.modulemap" "$platform_dir/Headers/"
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else
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echo "Error: module.modulemap not found. Run generate-bindings.sh first."
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exit 1
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fi
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done
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# Create XCFramework
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echo "Creating XCFramework..."
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xcodebuild -create-xcframework \
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-library "$BUILD_DIR/ios/libarkdrop_uniffi.a" \
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-headers "$BUILD_DIR/ios/Headers" \
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-library "$BUILD_DIR/ios-simulator/libarkdrop_uniffi.a" \
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-headers "$BUILD_DIR/ios-simulator/Headers" \
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-library "$BUILD_DIR/macos/libarkdrop_uniffi.a" \
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-headers "$BUILD_DIR/macos/Headers" \
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-output "$SCRIPT_DIR/$XCFRAMEWORK_NAME"
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echo "XCFramework created successfully: $SCRIPT_DIR/$XCFRAMEWORK_NAME"
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echo ""
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echo "You can now use the Swift package with Xcode or Swift Package Manager"

‎drop-core/uniffi/bindings/swift/generate-bindings.sh‎

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#!/bin/bash
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set -e
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# Generate Swift bindings using uniffi-bindgen
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# This creates the .swift file and .modulemap for the Swift module
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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UNIFFI_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
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OUTPUT_DIR="$SCRIPT_DIR"
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echo "Generating Swift bindings..."
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echo "UniFFI directory: $UNIFFI_DIR"
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echo "Output directory: $OUTPUT_DIR"
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cd "$UNIFFI_DIR"
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# Generate Swift bindings
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cargo run --bin uniffi-bindgen generate \
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./src/drop.udl \
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--language swift \
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--out-dir "$OUTPUT_DIR"
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# Rename modulemap to module.modulemap (required for XCFramework)
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if [ -f "$OUTPUT_DIR/arkdrop_uniffiFFI.modulemap" ]; then
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mv "$OUTPUT_DIR/arkdrop_uniffiFFI.modulemap" "$OUTPUT_DIR/module.modulemap"
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echo "Renamed modulemap to module.modulemap"
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fi
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echo "Swift bindings generated successfully!"
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echo "Generated files:"
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ls -la "$OUTPUT_DIR"/*.swift "$OUTPUT_DIR"/*.modulemap 2>/dev/null || true

‎drop-core/uniffi/uniffi-bindgen-swift.rs‎

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fn main() {
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uniffi::uniffi_bindgen_swift()
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}

‎drop-core/uniffi/uniffi.toml‎

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[bindings.kotlin]
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package_name = "dev.arkbuilders.drop"
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cdylib_name = "arkdrop_uniffi"
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[bindings.swift]
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module_name = "ArkDrop"
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cdylib_name = "arkdrop_uniffi"
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ffi_module_name = "arkdrop_uniffiFFI"

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