Swift Java Codegeneration annotation processor

Annotation processor that generate Swift JNI code for Kotlin headers

Pre-requirements

This annotation process only generate Swift JNI code. For compiling swift code for Android please use Swift Android Gradle plugin

Setup

Add the following to your root build.gradle

allprojects {
    repositories {
        mavenCentral()
    }
}

Add the following to your project build.gradle

dependencies {
    kapt "com.readdle.swift.java.codegen:compiler:$swift-java-codegen-version"
    implementation "com.readdle.swift.java.codegen:annotations:$swift-java-codegen-version"
}

Usage

Documentation in progress...

Samples

There are few samples that use Swift Java Codegen:

FAQ

Why this project has Java in it name but doesn't support Java?

When this project was started Kotlin was in beta development. That's why we decide to move on with Java as primary language. After 4 year of development we moved to Kotlin and break Java support. If for some reason you would like to use this project with Java, latest Java support version us stil available on Maven Central.

Could I generate Swift JNI without writing Kotlin headers manually?

Very good question. Probably it's possible but it's quite complicated. We invest time to research code generation based on Swift and have a small prototype. But the development of this new tool is still at a very early stage.

PackageDescription not found in Package.swift

I am trying to opening and build the project. But I'm unable to get it building.
Swift Toolchain version: swift-android-5.0-8

And in https://github.com/readdle/swift-android-architecture I get the following errors:

> Task :app:swiftBuildArm64Debug FAILED
Swift PM flags: --configuration debug -Xswiftc -DDEBUG
/Users/geert/Projects/SwiftAndroid/swift-android-architecture/todoapp/app/src/main/swift: error: manifest parse error(s):
/Users/geert/Projects/SwiftAndroid/swift-android-architecture/todoapp/app/src/main/swift/Package.swift:55:15: error: 'init(name:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is unavailable
let package = Package(
              ^~~~~~~
PackageDescription.Package:27:12: note: 'init(name:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' was introduced in PackageDescription 4.2
    public init(name: String, pkgConfig: String? = nil, providers: [PackageDescription.SystemPackageProvider]? = nil, products: [PackageDescription.Product] = [], dependencies: [PackageDescription.Package.Dependency] = [], targets: [PackageDescription.Target] = [], swiftLanguageVersions: [PackageDescription.SwiftVersion]? = nil, cLanguageStandard: PackageDescription.CLanguageStandard? = nil, cxxLanguageStandard: PackageDescription.CXXLanguageStandard? = nil)
           ^
/Users/geert/Projects/SwiftAndroid/swift-android-architecture/todoapp/app/src/main/swift/Package.swift:65:10: error: 'target(name:dependencies:path:exclude:sources:publicHeadersPath:)' is unavailable
        .target(name: packageName, dependencies: ["java_swift", "JavaCoder"])
         ^~~~~~
PackageDescription.Target:34:24: note: 'target(name:dependencies:path:exclude:sources:publicHeadersPath:)' was introduced in PackageDescription 4
    public static func target(name: String, dependencies: [PackageDescription.Target.Dependency] = [], path: String? = nil, exclude: [String] = [], sources: [String]? = nil, publicHeadersPath: String? = nil) -> PackageDescription.Target
                       ^
/Users/geert/Projects/SwiftAndroid/swift-android-architecture/todoapp/app/src/main/swift/Package.swift:41:10: error: 'target(name:dependencies:path:exclude:sources:publicHeadersPath:)' is unavailable
        .target(
         ^~~~~~
PackageDescription.Target:34:24: note: 'target(name:dependencies:path:exclude:sources:publicHeadersPath:)' was introduced in PackageDescription 4
    public static func target(name: String, dependencies: [PackageDescription.Target.Dependency] = [], path: String? = nil, exclude: [String] = [], sources: [String]? = nil, publicHeadersPath: String? = nil) -> PackageDescription.Target
                       ^

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:swiftBuildArm64Debug'.
> Process 'command '/Users/geert/android/swift-android-current/build-tools/1.9.6-swift5/swift-build'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s

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swift-java-codegen's Introduction

Swift Java Codegeneration annotation processor

Pre-requirements

Setup

Usage

Samples

FAQ

Why this project has Java in it name but doesn't support Java?

Could I generate Swift JNI without writing Kotlin headers manually?

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