private object ConstructType()

in src/React.Core/TinyIoC/TinyIoC.cs [3995:4062]
54 lines of code
12 McCabe index (conditional complexity)

        private object ConstructType(Type requestedType, Type implementationType, ConstructorInfo constructor, NamedParameterOverloads parameters, ResolveOptions options)
        {
            var typeToConstruct = implementationType;

#if RESOLVE_OPEN_GENERICS
            if (implementationType.IsGenericTypeDefinition())
            {
                if (requestedType == null || !requestedType.IsGenericType() || !requestedType.GetGenericArguments().Any())
                    throw new TinyIoCResolutionException(typeToConstruct);

                typeToConstruct = typeToConstruct.MakeGenericType(requestedType.GetGenericArguments());
            }
#endif
            if (constructor == null)
            {
                // Try and get the best constructor that we can construct
                // if we can't construct any then get the constructor
                // with the least number of parameters so we can throw a meaningful
                // resolve exception
                constructor = GetBestConstructor(typeToConstruct, parameters, options) ?? GetTypeConstructors(typeToConstruct).LastOrDefault();
            }

            if (constructor == null)
                throw new TinyIoCResolutionException(typeToConstruct);

            var ctorParams = constructor.GetParameters();
            object[] args = new object[ctorParams.Count()];

            for (int parameterIndex = 0; parameterIndex < ctorParams.Count(); parameterIndex++)
            {
                var currentParam = ctorParams[parameterIndex];

                try
                {
                    args[parameterIndex] = parameters.ContainsKey(currentParam.Name) ?
                                            parameters[currentParam.Name] :
                                            ResolveInternal(
                                                new TypeRegistration(currentParam.ParameterType),
                                                NamedParameterOverloads.Default,
                                                options);
                }
                catch (TinyIoCResolutionException ex)
                {
                    // If a constructor parameter can't be resolved
                    // it will throw, so wrap it and throw that this can't
                    // be resolved.
                    throw new TinyIoCResolutionException(typeToConstruct, ex);
                }
                catch (Exception ex)
                {
                    throw new TinyIoCResolutionException(typeToConstruct, ex);
                }
            }

            try
            {
#if USE_OBJECT_CONSTRUCTOR
                var constructionDelegate = CreateObjectConstructionDelegateWithCache(constructor);
                return constructionDelegate.Invoke(args);
#else
                return constructor.Invoke(args);
#endif
            }
            catch (Exception ex)
            {
                throw new TinyIoCResolutionException(typeToConstruct, ex);
            }
        }