private TN MapInternal <T, TN>(T src, TN dest = default(TN), bool dynamicTrial = false)
{
var srcType = typeof(T);
var destType = typeof(TN);
var cacheKey = CalculateCacheKey(srcType, destType);
if (CustomMappers.ContainsKey(cacheKey))
{
var customTypeMapper = CustomMappers[cacheKey];
var typeMapper = customTypeMapper() as ICustomTypeMapper <T, TN>;
var context = new DefaultMappingContext <T, TN> {
Source = src, Destination = dest
};
return(typeMapper.Map(context));
}
var mappingService = EqualityComparer <TN> .Default.Equals(dest, default(TN)) ? SourceService : DestinationService;
if (mappingService.TypeMappers.ContainsKey(cacheKey))
{
if (EqualityComparer <T> .Default.Equals(src, default(T)))
{
return(default(TN));
}
var mapper = mappingService.TypeMappers[cacheKey] as ITypeMapper <T, TN>;
return(mapper != null
? mapper.MapTo(src, dest)
: default(TN));
}
var tCol =
typeof(T).GetInfo().GetInterfaces()
.FirstOrDefault(t => t.GetInfo().IsGenericType&& t.GetGenericTypeDefinition() == GenericEnumerableType) ??
(typeof(T).GetInfo().IsGenericType &&
typeof(T).GetInfo().GetInterfaces().Any(t => t == typeof(IEnumerable)) ? typeof(T)
: null);
var tnCol = typeof(TN).GetInfo().GetInterfaces()
.FirstOrDefault(t => t.GetInfo().IsGenericType&& t.GetGenericTypeDefinition() == GenericEnumerableType) ??
(typeof(TN).GetInfo().IsGenericType&& typeof(TN).GetInfo().GetInterfaces().Any(t => t == typeof(IEnumerable)) ? typeof(TN)
: null);
if ((tCol == null || tnCol == null))
{
if (dynamicTrial)
{
throw new MapNotImplementedException(
$"There is no mapping has been found. Source Type: {srcType.FullName}, Destination Type: {destType.FullName}");
}
Register <T, TN>();
return(MapInternal(src, dest, true));
}
if (EqualityComparer <TN> .Default.Equals(dest, default(TN)))
{
PrecompileCollection <T, TN>(CompilationTypes.Source);
}
else
{
PrecompileCollection <T, TN>();
}
// todo: make same signature in both compiled funcs with destination
var result = (TN)(((EqualityComparer <TN> .Default.Equals(dest, default(TN)))
? SourceService.MapCollection(cacheKey).DynamicInvoke(src)
: DestinationService.MapCollection(cacheKey).DynamicInvoke(src, dest)));
return(result);
}