Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.

My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.

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        public object Map(ResolutionContext context, IMappingEngineRunner mapper)
        {
            if (context.TypeMap.CustomMapper != null)
                return UseCustomMapper(context);

            var profileConfiguration = mapper.ConfigurationProvider.GetProfileConfiguration(context.TypeMap.Profile);
            if (context.SourceValue == null && profileConfiguration.MapNullSourceValuesAsNull)
                return AfterMapping(context, null);

            if (context.DestinationValue == null && context.InstanceCache.ContainsKey(context))
                return AfterMapping(context, context.InstanceCache[context]);

            return DoMap(context, mapper);
        }

        private object UseCutomMapper(ResolutionContext context)
        {
            context.TypeMap.BeforeMap(context.SourceValue, null);
            object mappedObject = context.TypeMap.CustomMapper(context);
            return AfterMapping(context, mappedObject);
        }

        private object DoMap(ResolutionContext context, IMappingEngineRunner mapper)
        {
            object mappedObject = GetMappedObject();

            context.TypeMap.BeforeMap(context.SourceValue, mappedObject);
            foreach (PropertyMap propertyMap in context.TypeMap.GetPropertyMaps())
            {
                MapPropertyValue(context, mapper, mappedObject, propertyMap);
            }

            return AfterMapping(context, mappedObject);            
        }

        private object GetMappedObject()
        {
            if (context.DestinationValue != null)
                return context.DestinationValue;

            object mappedObject = mapper.CreateObject(context.DestinationType);
            if (context.SourceValue != null)
                context.InstanceCache.Add(context, mappedObject);

            return mappedObject;
        }

        private object AfterMapping(ResolutionContext context, object mappedObject)
        {
            context.TypeMap.AfterMap(context.SourceValue, mappedObject);
            return mappedObject;
        }