public static bool Register <T>(
this IDataLoaderRegistry registry)
where T : class, IDataLoader
{
Func <IServiceProvider, T> createInstance =
ActivatorHelper.CompileFactory <T>();
return(registry.Register(typeof(T).FullName, createInstance));
}
public static T DataLoader <T>(
this IResolverContext context,
string key)
where T : class, IDataLoader
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (string.IsNullOrEmpty(key))
{
throw new ArgumentException(
TypeResources.DataLoaderRegistry_KeyNullOrEmpty,
nameof(key));
}
if (TryGetDataLoader(context, key,
out T dataLoader,
out IDataLoaderRegistry registry))
{
return(dataLoader);
}
return(GetOrCreate <T>
(
key,
registry,
r => r.Register(key, services =>
{
var instance = (T)services.GetService(typeof(T));
return instance is null
? ActivatorHelper.CompileFactory <T>().Invoke(services)
: instance;
})
));
}
public object?CreateInstance(Type type) => ActivatorHelper.CompileFactory(type)(_services);
public T CreateInstance <T>() => ActivatorHelper.CompileFactory <T>()(_services);
