/// <summary>
/// Initializes a new instance of the <see cref="IxHost"/> class.
/// This is first build phase. Second phase performed by <see cref="Initialize"/>.
/// </summary>
public IxHost()
{
_argumentProvider = new IxArgumentProvider(this);
// TODO: Load priorities from configs.
InstanceFactoryBuilder.Add(ExistingInstanceRawFactoryBuilder, 100);
InstanceFactoryBuilder.Add(ClassInstanceFactoryBuilder, 200);
InstanceFactoryBuilder.Add(DelegateInstanceBuilder, 300);
VisibilityFilterBuilder.Add(StdVisibilityFilterBuilder, 100);
ProviderNodeBuilder.Add(StdProviderConfigDefaultsSetter, 100);
ProviderNodeBuilder.Add(ScopeBuilder, 200);
ProviderNodeBuilder.Add(SingletonProviderBuilder, 300);
ProviderNodeBuilder.Add(PerResolveProviderBuilder, 400);
ScopeBinderBuilder.Add(RegistrationScopeBinderBuilder, 100);
DisposeHandlerBuilder.Add(DisposableDisposeHandlerBuilder, 100);
DisposeHandlerBuilder.Add(AsyncDisposableDisposeHandlerBuilder, 200);
ResolveHandler.Add(SelfResolveInterceptor, 80);
ResolveHandler.Add(ResolverResolveInterceptor, 100);
ResolveHandler.Add(DirectCycleResolveInterceptor, 150);
ResolveHandler.Add(SelfToChildrenResolver, 200);
ResolveHandler.Add(StdResolveInterceptor, 300);
ResolveHandler.Add(ResolveContextResolveInterceptor, 400);
}
/// <summary>
/// Build instantiator that will produce this registration's instance.
/// </summary>
public void Compile()
{
if (InstanceFactory == null)
{
IInstanceFactory factory;
// Check if we have previously built this factory. If so, reuse that to save resource.
if (_instanceFactories.TryGetValue(RegisteredType, out factory))
{
InstanceFactory = factory;
}
else
{
// We have not previously build this factory, so build for the first time and cache.
// This is a resource intensive operation.
InstanceFactory = InstanceFactoryBuilder.BuildInstanceFactory();
// Add to cache.
_instanceFactories.Add(RegisteredType, InstanceFactory);
}
}
}
