/// <inheritdoc />
public override Expression GetExpression(IContainerContext containerContext, IServiceRegistration serviceRegistration,
IObjectBuilder objectBuilder, ResolutionContext resolutionContext, Type resolveType)
{
var variable = resolutionContext.GetKnownVariableOrDefault(base.ScopeId);
if (variable != null)
{
return(variable);
}
var expression = base.GetExpression(containerContext, serviceRegistration, objectBuilder, resolutionContext, resolveType);
return(expression == null ? null : base.StoreExpressionIntoLocalVariable(expression, resolutionContext, resolveType));
}
internal Expression ApplyLifetime(ExpressionBuilder expressionBuilder, ServiceRegistration serviceRegistration,
ResolutionContext resolutionContext, Type requestedType)
{
if (resolutionContext.CurrentContainerContext.ContainerConfiguration.LifetimeValidationEnabled &&
this.LifeSpan > 0)
{
if (resolutionContext.CurrentLifeSpan > this.LifeSpan)
{
throw new LifetimeValidationFailedException(serviceRegistration.ImplementationType,
$"The life-span of {serviceRegistration.ImplementationType} ({this.Name}|{this.LifeSpan}) " +
$"is shorter than its direct or indirect parent's {resolutionContext.NameOfServiceLifeSpanValidatingAgainst}." + Environment.NewLine +
"This could lead to incidental lifetime promotions with longer life-span, it's recommended to double check your lifetime configurations.");
}
resolutionContext = resolutionContext.BeginLifetimeValidationContext(this.LifeSpan,
$"{serviceRegistration.ImplementationType} ({this.Name}|{this.LifeSpan})");
}
if (!this.StoreResultInLocalVariable)
{
return(this.BuildLifetimeAppliedExpression(expressionBuilder,
serviceRegistration, resolutionContext, requestedType));
}
var variable = resolutionContext.GetKnownVariableOrDefault(serviceRegistration.RegistrationId);
if (variable != null)
{
return(variable);
}
var resultExpression = this.BuildLifetimeAppliedExpression(expressionBuilder,
serviceRegistration, resolutionContext, requestedType);
if (resultExpression == null)
{
return(null);
}
variable = requestedType.AsVariable();
resolutionContext.AddDefinedVariable(serviceRegistration.RegistrationId, variable);
resolutionContext.AddInstruction(variable.AssignTo(resultExpression));
return(variable);
}
/// <inheritdoc />
public override Expression GetExpression(IContainerContext containerContext, IServiceRegistration serviceRegistration, IObjectBuilder objectBuilder, ResolutionContext resolutionContext, Type resolveType)
{
var variable = resolutionContext.GetKnownVariableOrDefault(base.ScopeId);
if (variable != null)
{
return(variable);
}
var factory = base.GetFactoryExpression(containerContext, serviceRegistration, objectBuilder, resolutionContext, resolveType);
if (factory == null)
{
return(null);
}
var expression = resolutionContext.CurrentScopeParameter
.CallMethod(Constants.GetOrAddScopedItemMethod, base.ScopeId.AsConstant(), base.Sync.AsConstant(), factory)
.ConvertTo(resolveType);
return(base.StoreExpressionIntoLocalVariable(expression, resolutionContext, resolveType));
}