private Expression CreateResolveExpressionRecursively(TypeKey requestedTypeKey, DependencyInjectionContainer container, DependencyOverrides dependencyOverrides, bool?tryResolveAll = null)
{
// Check if the instance is overridden
if (dependencyOverrides?.HasOverriddenInstance(requestedTypeKey) == true)
{
return(Expression.Convert(Expression.Call(Expression.Call(Constants.ResolveContextParameterExpression, Constants.GetDependencyOverridesProperty),
Constants.GetOverriddenInstanceMethod,
Expression.Constant(requestedTypeKey)),
requestedTypeKey.Type));
}
// Else ask the container for a ResolveInfo to identify how the returned expression should be composed
var resolveInfo = container.GetResolveInfo(requestedTypeKey, tryResolveAll);
if (resolveInfo is ResolveRegistrationInfo resolveRegistrationInfo)
{
return(CreateResolveExpressionRecursively(requestedTypeKey, resolveRegistrationInfo.Registration, dependencyOverrides, container));
}
if (resolveInfo is ResolveAllInfo resolveAllInfo)
{
return(CreateResolveAllExpressionRecursively(resolveAllInfo, dependencyOverrides, container));
}
throw new InvalidOperationException($"Cannot handle ResolveInfo \"{resolveInfo}\" in this current implementation of \"{nameof(CompiledLinqExpressionFactory)}\"");
}
