LightDependency
Inversion of Control Container for Swift
Installation
CocoaPods
# Podfile
use_frameworks!
target 'YOUR_TARGET_NAME' do
pod 'LightDependency'
endReplace YOUR_TARGET_NAME and then, in the Podfile directory, run command:
$ pod installCarthage
Add next line to Cartfile:
github "LightDependency/LightDependency"
Then run:
$ carthage update --platform iosUsage
Simple example
let container = LightContainer.createRootContainer()
container.configure(defaults: .registerSingletons) { context in
context.register { MyApiClient() as MyApiClientType }
context.register { resolver in
try MyService(apiClient: resolver.resolve())
}
}
let service: MyService = try container.resolve()Where definitions of the protocols and classes are:
protocol MyApiClientType {
// ...
}
final class MyApiClient: MyApiClientType {
// ...
}
final class MyService {
init(apiClient: MyApiClientType) {
// ...
}
// ...
}Example 2
let container = LightContainer.createRootContainer()
container.configure(defaults: .registerSingletons) { context in
context.register { ItemService() }
.asDependency(ofType: { $0 as ItemsProvider })
.asDependency(ofType: { $0 as DetailInfoProvider })
}
container.configure(defaults: .createNewInstancePerResolve) { context in
context.initContext.register(ItemListViewModel.init)
context.initContext.register(ItemDetailsViewModel.init)
context.factoryContext.register(ItemDetailsViewModelFactory.self)
}
let itemListViewModel: ItemListViewModel = try container.resolve()Definitions
final class ItemService: ItemsProvider, DetailInfoProvider {
// ...
}
protocol ItemsProvider {
// ...
}
protocol DetailInfoProvider {
// ...
}
typealias ItemDetailsViewModelFactory = (ItemModel) -> ItemDetailsViewModel
final class ItemModel {
// ...
}
final class ItemListViewModel {
init(itemsProvider: ItemsProvider, itemDetailsFactory: @escaping ItemDetailsViewModelFactory) {
// ...
}
// ...
}
final class ItemDetailsViewModel {
init(itemModel: ItemModel, detailInfoProvider: DetailInfoProvider) {
// ...
}
// ...
}