private void AutoRegisterInternal()

in src/React.Core/TinyIoC/TinyIoC.cs [3419:3485]
58 lines of code
32 McCabe index (conditional complexity)

        private void AutoRegisterInternal(IEnumerable<Assembly> assemblies, DuplicateImplementationActions duplicateAction, Func<Type, bool> registrationPredicate)
        {
            lock (_AutoRegisterLock)
            {
                var types = assemblies.SelectMany(a => a.SafeGetTypes()).Where(t => !IsIgnoredType(t, registrationPredicate)).ToList();

                var concreteTypes = types
                    .Where(type => type.IsClass() && (type.IsAbstract() == false) && (type != this.GetType() && (type.DeclaringType != this.GetType()) && (!type.IsGenericTypeDefinition())))
                    .ToList();

                foreach (var type in concreteTypes)
                {
                    try
                    {
                        RegisterInternal(type, string.Empty, GetDefaultObjectFactory(type, type));
                    }
#if PORTABLE || NETSTANDARD1_0 || NETSTANDARD1_1 || NETSTANDARD1_2 || NETSTANDARD1_3 || NETSTANDARD1_4 || NETSTANDARD1_5 || NETSTANDARD1_6
                    catch (MemberAccessException)
#else
                    catch (MethodAccessException)
#endif
                    {
                        // Ignore methods we can't access - added for Silverlight
                    }
                }

                var abstractInterfaceTypes = from type in types
                                             where ((type.IsInterface() || type.IsAbstract()) && (type.DeclaringType != this.GetType()) && (!type.IsGenericTypeDefinition()))
                                             select type;

                foreach (var type in abstractInterfaceTypes)
                {
                    var localType = type;
                    var implementations = from implementationType in concreteTypes
                                          where localType.IsAssignableFrom(implementationType)
                                          select implementationType;

                    if (implementations.Skip(1).Any())
                    {
                        if (duplicateAction == DuplicateImplementationActions.Fail)
                            throw new TinyIoCAutoRegistrationException(type, implementations);

                        if (duplicateAction == DuplicateImplementationActions.RegisterMultiple)
                        {
                            RegisterMultiple(type, implementations);
                        }
                    }

                    var firstImplementation = implementations.FirstOrDefault();
                    if (firstImplementation != null)
                    {
                        try
                        {
                            RegisterInternal(type, string.Empty, GetDefaultObjectFactory(type, firstImplementation));
                        }
#if PORTABLE || NETSTANDARD1_0 || NETSTANDARD1_1 || NETSTANDARD1_2 || NETSTANDARD1_3 || NETSTANDARD1_4 || NETSTANDARD1_5 || NETSTANDARD1_6
                        catch (MemberAccessException)
#else
                        catch (MethodAccessException)
#endif
                        {
                            // Ignore methods we can't access - added for Silverlight
                        }
                    }
                }
            }
        }