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Dependency Injection (DI) for Swift inspired by JSR-330

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Dependency Injection

🚀 Dependency Injection

Dependency Injection (DI) solution for Swift projects. It is inspired by JSR-330 and uses a property wrapper named @Inject to inject dependencies into properties of classes, structs, and protocols.

✨ Features

  • 🔄 Support for both prototype and singleton scopes

  • 🏗️ Initialisable protocol for classes with an init method

  • 💉 Injectable protocol for objects conforming to Initialisable

  • 🔗 WeakObjectWrapper class for wrapping reference types as weak references

  • 🎁 Inject struct for property wrapper, enabling dependency injection into properties

  • 🧠 Context class for managing dependency registration and resolution

  • 🛠️ AssemblyBuilder class for creating and configuring dependency assemblies

🚀 Usage

  1. Import the DependencyInjection module in your project.

  2. Use the @Inject property wrapper on properties in your classes, structs, and protocols:

class MyClass {
    @Inject var dependency: MyDependency
}
  1. Utilize the AssemblyBuilder to register dependencies and configure their scope:
let assembly = AssemblyBuilder.instance
    .add(factory: { MyDependency() }, bindingName: "MyDependency", scope: .singleton)
    .build()
  1. Use the Context class to register the assembly and resolve dependencies (e.g., in AppDelegate):
Context.instance.register(assembly)

🔧 Compatibility

This library requires Swift 5.3 or later.

📦 Installation

Install DependencyInjection using the Swift Package Manager by adding it as a dependency in your Package.swift file or directly in your Xcode project.

📄 License

This code is licensed under the MIT License.