di-lite 1.0.0

DiLite /dɪˈlʌɪt/ is a minimalist, lightweight DI framework. Registrations and resolutions will look very familiar to those accustomed to Autofac.

Usage

Create a ContainerBuilder, make the registrations, then build your Container:

var containerBuilder = new ContainerBuilder();
containerBuilder.RegisterType<MyClass>().As<IMyClass>();
var container = containerBuilder.Build();

Then simply resolve what you need from the Container:

var myInstance = container.Resolve<IMyClass>();

Features

1. Single instance

Each resulution call to the container will create a new instance of the registered type, unless it is specified as a singleton during registration. To register a type as a singleton, just use the AsSingleInstance method:

containerBuilder.RegisterType<MyClass>().As<IMyClass>().AsSingleInstance();

2. As self

If no alias is specified during the registration of a type, it will be registered as itself.

containerBuilder.RegisterType<MyClass>();

It can be resolved as:

var myInstance = container.Resolve<MyClass>();

If another alias is specified, but the registration as itself is also needed, the AsSelf method must be used:

containerBuilder.RegisterType<MyClass>().As<IMyClass>().AsSelf();

3. Multiple registrations for the same alias

Multiple registrations can be made for the same alias:

containerBuilder.RegisterType<MyClassImplementation1>().As<IMyClass>();
containerBuilder.RegisterType<MyClassImplementation2>().As<IMyClass>();

In this case, the Resolve method will return an instance of MyClassImplementation2 because it was the last one registered for that alias. By using the ResolveAll method, all registrations for the alias will be returned:

IEnumerable<IMyClass> myInstances = container.ResolveAll<IMyClass>();

4. Factory method registrations

Factory methods can also be registered as Func<IContainer, T>:

containerBuilder.RegisterFactoryMethod(container =>
{
    var dep1 = container.Resolve<IDependency1>();
    var dep2 = container.Resolve<IDependency2>();
    return new MyClass(dep1, dep2);
}).As<IMyClass>();

These registrations can be resolved as their simple type counterparts:

var myInstance = container.Resolve<IMyClass>();