CarbonGraph is a Swift dependency injection / lookup framework for iOS. You can use it to build loose coupling between modules.

The CarbonGraph project contains 2 frameworks:

Framework	Description
CarbonCore	Focused specifically on core DI implementations
CarbonObjC	CarbonCore's ObjC adaptation framework

Features

• Complete dependency injection capabilities
• Complete Objective-C support
• Convenient object definition DSL
• High-performance thread-safe solution
• Support resolving native Swift types
• Support resolving with external parameters
• Support resolving with circular dependencies
• Automatic scanning of configuration
• Additional module life cycle management capabilities

Requirements

• CarbonCore Requirements

CarbonCore Stable Version	Required iOS Version	Required Swift Version
1.2.2 - 1.3.2	9.0 +	5.2 +
1.3.3	9.0 +	5.5 +

• CarbonObjC Version Compatibility

CarbonObjC Version	CarbonCore Compatible Version
1.2.2	1.2.2
1.3.1	1.3.1 - 1.3.3

For more information see Compatibility

Installation

CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate CarbonGraph into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'CarbonCore', '~> 1.3.3'

Quick Start

• Basic object registration and resolving

let context = ObjectContext()
let definitionBuilder = Definition("filevc")
    .protocol(UIViewController.self)
    .object(FileViewController())
context.register(builder: definitionBuilder)
context[UIViewController.self, name: "filevc"]

let context = ObjectContext()
let definitionBuilder = Definition()
    .object(FileManager() as FileManagerProtocol)
context.register(builder: definitionBuilder)
context[FileManagerProtocol.self]

• Use configuration batch registration

class MyConfiguration: Configuration {
    static func definitions(of context: ObjectContext) -> Definitions {
        Definition()
            .object(FilePath())
        Definition()
            .constructor(FileModel.init(filePath:))
    }
}

let context = ObjectContext()
context.register(configuration: MyConfiguration.self)
context[FileModel.self]

Basic usage

Note: For convenience, the registration of object definitions and the creation of context that appear in the following will be omitted. All definitions in your project must be registered before they can be resolved.

• Use constructor for dependency injection

Definition()
    .protocol(FileViewControllerProtocol.self)
    .constructor(FileViewController.init(fileManager:))
context[FileViewControllerProtocol.self].fileManager

• Use property for dependency injection

Definition()
    .protocol(FileViewControllerProtocol.self)
    .object(FileViewController())
    .property(\.fileManager)
context[FileViewControllerProtocol.self].fileManager

• Use setter for dependency injection

Definition()
    .protocol(FileViewControllerProtocol.self)
    .object(FileViewController())
    .setter(FileViewController.setFileManager(fileManager:))
context[FileViewControllerProtocol.self].fileManager

• Use static factory for manual dependency injection

Definition()
    .factory(fileViewController(context:))
context[FileViewControllerProtocol.self].fileManager

static func fileViewController(context: ObjectContext) -> FileViewControllerProtocol {
    let fileVC = FileViewController()
    fileVC.fileManager = context[FileManagerProtocol]
    return fileVC
}

The same as:

Definition()
    .factory { context in 
        let fileVC = FileViewController()
        fileVC.fileManager = context[FileManagerProtocol]
        return fileVC as FileViewControllerProtocol
    }

• Create objects with external parameters

Definition()
    .factory(fileModel(context:path:name:))
context[FileModelProtocol.self, "/china/beijing", "family.png"]

static func fileModel(context: ObjectContext, path: String, name: String) -> FileModelProtocol {
    FileModel(path: path, name: name)
}

For more information see Basic usage

Documentation

The documentation of this project is written in DocC, please clone the repo and build the documentation yourself.

1. Clone this repo
2. Open Carbon.xcworkspace with Xcode
3. Product > Build Documentation

For more information see Unit Test and Example

Contribution

You are more than welcome to contribute code to the project，for more information see Contribution. You can also join the WeChat discussion group, check the QR code below.

 

License

CarbonGraph is released under the MIT license. See LICENSE for details.