Example #1
0
        /// <summary>
        /// Called during the chain of responsibility for a build operation.
        /// </summary>
        /// <param name="context">The context for the operation.</param>
        public override void PreBuildUp(ref BuilderContext context)
        {
            var resolver = context.GetResolver();

            if (null == resolver)
            {
                // Check if can be created
                if (!(context.Registration is ExplicitRegistration) &&
#if NETCOREAPP1_0 || NETSTANDARD1_0
                    context.RegistrationType.GetTypeInfo().IsGenericTypeDefinition)
#else
                    context.RegistrationType.IsGenericTypeDefinition)
#endif
                {
                    throw new ArgumentException(string.Format(CultureInfo.CurrentCulture,
                                                              "The type {0} is an open generic type. An open generic type cannot be resolved.",
                                                              context.RegistrationType.FullName));
                }

                // Get resolver factory
                var factory = context.GetFactory();

                // Create plan
                if (null != factory)
                {
                    resolver = factory(ref context);

                    context.Registration.Set(typeof(ResolveDelegate <BuilderContext>), resolver);
                    context.Existing = resolver(ref context);
                }
                else
                {
                    throw new ResolutionFailedException(context.Type, context.Name, $"Failed to find Resolve Delegate Factory for Type {context.Type}");
                }
            }
            else
            {
                // Plan has been already created, just build the object
                context.Existing = resolver(ref context);
            }
        }