public void ScopeDisposed(ServiceProviderEngine engine, ScopeState state)
{
if (IsEnabled(EventLevel.Verbose, EventKeywords.All))
{
ScopeDisposed(engine.GetHashCode(), state.ResolvedServicesCount, state.DisposableServicesCount);
}
}
internal ServiceProvider(ICollection <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
// note that Root needs to be set before calling GetEngine(), because the engine may need to access Root
Root = new ServiceProviderEngineScope(this, isRootScope: true);
_engine = GetEngine();
_createServiceAccessor = CreateServiceAccessor;
_realizedServices = new ConcurrentDictionary <Type, Func <ServiceProviderEngineScope, object?> >();
CallSiteFactory = new CallSiteFactory(serviceDescriptors);
// The list of built in services that aren't part of the list of service descriptors
// keep this in sync with CallSiteFactory.IsService
CallSiteFactory.Add(typeof(IServiceProvider), new ServiceProviderCallSite());
CallSiteFactory.Add(typeof(IServiceScopeFactory), new ConstantCallSite(typeof(IServiceScopeFactory), Root));
CallSiteFactory.Add(typeof(IServiceProviderIsService), new ConstantCallSite(typeof(IServiceProviderIsService), CallSiteFactory));
if (options.ValidateScopes)
{
_callSiteValidator = new CallSiteValidator();
}
if (options.ValidateOnBuild)
{
List <Exception>?exceptions = null;
foreach (ServiceDescriptor serviceDescriptor in serviceDescriptors)
{
try
{
ValidateService(serviceDescriptor);
}
catch (Exception e)
{
exceptions ??= new List <Exception>();
exceptions.Add(e);
}
}
if (exceptions != null)
{
throw new AggregateException("Some services are not able to be constructed", exceptions.ToArray());
}
}
DependencyInjectionEventSource.Log.ServiceProviderBuilt(this);
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
_engine = GetEngine();
_createServiceAccessor = CreateServiceAccessor;
_realizedServices = new ConcurrentDictionary <Type, Func <ServiceProviderEngineScope, object> >();
Root = new ServiceProviderEngineScope(this);
CallSiteFactory = new CallSiteFactory(serviceDescriptors);
// The list of built in services that aren't part of the list of service descriptors
// keep this in sync with CallSiteFactory.IsService
CallSiteFactory.Add(typeof(IServiceProvider), new ServiceProviderCallSite());
CallSiteFactory.Add(typeof(IServiceScopeFactory), new ServiceScopeFactoryCallSite(Root));
CallSiteFactory.Add(typeof(IServiceProviderIsService), new ConstantCallSite(typeof(IServiceProviderIsService), CallSiteFactory));
if (options.ValidateScopes)
{
_callSiteValidator = new CallSiteValidator();
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (ServiceDescriptor serviceDescriptor in serviceDescriptors)
{
try
{
ValidateService(serviceDescriptor);
}
catch (Exception e)
{
exceptions = exceptions ?? new List <Exception>();
exceptions.Add(e);
}
}
if (exceptions != null)
{
throw new AggregateException("Some services are not able to be constructed", exceptions.ToArray());
}
}
}
public static ServiceProvider BuildServiceProvider(this IServiceCollection services, ServiceProviderMode mode, ServiceProviderOptions options = null)
{
options ??= ServiceProviderOptions.Default;
if (mode == ServiceProviderMode.Default)
{
return(services.BuildServiceProvider(options));
}
var provider = new ServiceProvider(services, ServiceProviderOptions.Default);
ServiceProviderEngine engine = mode switch
{
ServiceProviderMode.Dynamic => new DynamicServiceProviderEngine(provider),
ServiceProviderMode.Runtime => RuntimeServiceProviderEngine.Instance,
ServiceProviderMode.Expressions => new ExpressionsServiceProviderEngine(provider),
ServiceProviderMode.ILEmit => new ILEmitServiceProviderEngine(provider),
_ => throw new NotSupportedException()
};
provider._engine = engine;
return(provider);
}
}
private static Func <ServiceProviderEngineScope, object> CompileCallSite(ServiceCallSite callSite, ServiceProviderEngine engine)
{
return(new ExpressionResolverBuilder(CallSiteRuntimeResolver, engine, engine.Root).Build(callSite));
}
private static object Invoke(IServiceCallSite callSite, ServiceProviderEngine provider)
{
return(CallSiteRuntimeResolver.Resolve(callSite, provider.Root));
}
public void Track(ServiceProviderEngine engine)
{
DependencyInjectionEventSource.Log.ScopeDisposed(engine, this);
}
public ServiceProviderEngineScope(ServiceProviderEngine engine)
{
Engine = engine;
}