using Stashbox.Registration; using Stashbox.Resolution; using System; using System.Linq.Expressions; using System.Runtime.CompilerServices; namespace Stashbox.Lifetime { [System.Runtime.CompilerServices.NullableContext(1)] [System.Runtime.CompilerServices.Nullable(0)] public abstract class FactoryLifetimeDescriptor : LifetimeDescriptor { [return: System.Runtime.CompilerServices.Nullable(2)] private protected override Expression BuildLifetimeAppliedExpression(ServiceRegistration serviceRegistration, ResolutionContext resolutionContext, TypeInformation typeInformation) { Func<IResolutionScope, IRequestContext, object> factoryDelegateForRegistration = GetFactoryDelegateForRegistration(serviceRegistration, resolutionContext, typeInformation); if (factoryDelegateForRegistration != null) return ApplyLifetime(factoryDelegateForRegistration, serviceRegistration, resolutionContext, typeInformation.Type); return null; } [return: System.Runtime.CompilerServices.Nullable(new byte[] { 2, 1, 1, 1 })] private static Func<IResolutionScope, IRequestContext, object> GetFactoryDelegateForRegistration(ServiceRegistration serviceRegistration, ResolutionContext resolutionContext, TypeInformation typeInformation) { if (!LifetimeDescriptor.IsRegistrationOutputCacheable(serviceRegistration, resolutionContext)) return GetNewFactoryDelegate(serviceRegistration, resolutionContext.BeginSubGraph(), typeInformation); Func<IResolutionScope, IRequestContext, object> orDefault = resolutionContext.FactoryCache.GetOrDefault(serviceRegistration.RegistrationId); if (orDefault != null) return orDefault; orDefault = GetNewFactoryDelegate(serviceRegistration, resolutionContext.BeginSubGraph(), typeInformation); if (orDefault == null) return null; resolutionContext.FactoryCache.Add(serviceRegistration.RegistrationId, orDefault); return orDefault; } [return: System.Runtime.CompilerServices.Nullable(new byte[] { 2, 1, 1, 1 })] private static Func<IResolutionScope, IRequestContext, object> GetNewFactoryDelegate(ServiceRegistration serviceRegistration, ResolutionContext resolutionContext, TypeInformation typeInformation) { Expression expressionForRegistration = LifetimeDescriptor.GetExpressionForRegistration(serviceRegistration, resolutionContext, typeInformation); if (expressionForRegistration == null) return null; return expressionForRegistration.CompileDelegate(resolutionContext, resolutionContext.CurrentContainerContext.ContainerConfiguration); } protected abstract Expression ApplyLifetime(Func<IResolutionScope, IRequestContext, object> factory, ServiceRegistration serviceRegistration, ResolutionContext resolutionContext, Type resolveType); } }