internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback); //实例化 DynamicServiceProviderEngine
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
#if IL_EMIT
case ServiceProviderMode.ILEmit:
_engine = new ILEmitServiceProviderEngine(serviceDescriptors, callback);
break;
#endif
case ServiceProviderMode.Expressions:
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new NotSupportedException(nameof(options.Mode));
}
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, IServiceProviderEngine engine, ServiceProviderOptions options)
{
_engine = engine;
if (options.ValidateScopes)
{
_engine.InitializeCallback(this);
_callSiteValidator = new CallSiteValidator();
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (ServiceDescriptor serviceDescriptor in serviceDescriptors)
{
try
{
_engine.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());
}
}
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Compiled:
_engine = new CompiledServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new ArgumentOutOfRangeException(nameof(options.Mode));
}
}
// This constructor is called exclusively to create a child scope from the parent
internal ServiceProvider(ServiceProvider parent)
{
Root = parent.Root;
ResolvedServices = new Dictionary <object, object>();
CallSiteFactory = parent.CallSiteFactory;
RealizedServices = parent.RealizedServices;
_callSiteValidator = parent._callSiteValidator;
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
#if IL_EMIT
case ServiceProviderMode.ILEmit:
_engine = new ILEmitServiceProviderEngine(serviceDescriptors, callback);
break;
#endif
case ServiceProviderMode.Expressions:
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new NotSupportedException(nameof(options.Mode));
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (var serviceDescriptor in serviceDescriptors)
{
try
{
_engine.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());
}
}
}
internal InterceptableServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options, IInterceptingProxyFactory interceptingProxyFactory)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback, interceptingProxyFactory);
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
Root = this;
if (options.ValidateScopes)
{
_callSiteValidator = new CallSiteValidator();
}
CallSiteFactory = new CallSiteFactory(serviceDescriptors);
ResolvedServices = new Dictionary <object, object>();
CallSiteFactory.Add(typeof(IServiceProvider), new ServiceProviderCallSite());
CallSiteFactory.Add(typeof(IServiceScopeFactory), new ServiceScopeFactoryCallSite());
}
public ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, bool validateScopes)
{
Root = this;
if (validateScopes)
{
_callSiteValidator = new CallSiteValidator();
}
_table = new ServiceTable(serviceDescriptors);
_table.Add(typeof(IServiceProvider), new ServiceProviderService());
_table.Add(typeof(IServiceScopeFactory), new ServiceScopeService());
_table.Add(typeof(IEnumerable <>), new OpenIEnumerableService(_table));
}
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 = 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());
}
}
}
// This constructor is called exclusively to create a child scope from the parent
internal ServiceProvider(ServiceProvider parent)
{
Root = parent.Root;
_table = parent._table;
_callSiteValidator = parent._callSiteValidator;
}
internal ServiceProvider(IEnumerable <ServiceDescriptor> serviceDescriptors, ServiceProviderOptions options)
{
IServiceProviderEngineCallback callback = null;
if (options.ValidateScopes)
{
callback = this;
_callSiteValidator = new CallSiteValidator();
}
switch (options.Mode)
{
case ServiceProviderMode.Default:
#if !NETCOREAPP
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
#else
if (RuntimeFeature.IsSupported("IsDynamicCodeCompiled"))
{
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
}
else
{
// Don't try to compile Expressions/IL if they are going to get interpreted
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
}
#endif
break;
case ServiceProviderMode.Dynamic:
_engine = new DynamicServiceProviderEngine(serviceDescriptors, callback);
break;
case ServiceProviderMode.Runtime:
_engine = new RuntimeServiceProviderEngine(serviceDescriptors, callback);
break;
#if IL_EMIT
case ServiceProviderMode.ILEmit:
_engine = new ILEmitServiceProviderEngine(serviceDescriptors, callback);
break;
#endif
case ServiceProviderMode.Expressions:
_engine = new ExpressionsServiceProviderEngine(serviceDescriptors, callback);
break;
default:
throw new NotSupportedException(nameof(options.Mode));
}
if (options.ValidateOnBuild)
{
List <Exception> exceptions = null;
foreach (ServiceDescriptor serviceDescriptor in serviceDescriptors)
{
try
{
_engine.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());
}
}
}