private static TTarget ThrowCtor <TSource, TTarget>(TSource source, MapperContext context)
=> throw new InvalidOperationException($"Don't know how to create {typeof(TTarget).FullName} instances.");
private static void Identity <TSource, TTarget>(TSource source, TTarget target, MapperContext context)
{
}
private TTarget Map <TTarget>(object source, Type sourceType, MapperContext context)
{
if (source == null)
{
return(default);
/// <summary> /// Maps a source object to a new target object. /// </summary> /// <typeparam name="TSource">The source type.</typeparam> /// <typeparam name="TTarget">The target type.</typeparam> /// <param name="source">The source object.</param> /// <param name="context">A mapper context.</param> /// <returns>The target object.</returns> public TTarget Map <TSource, TTarget>(TSource source, MapperContext context) => Map <TTarget>(source, typeof(TSource), context);
/// <summary> /// Maps a source object to a new target object. /// </summary> /// <typeparam name="TTarget">The target type.</typeparam> /// <param name="source">The source object.</param> /// <param name="context">A mapper context.</param> /// <returns>The target object.</returns> public TTarget Map <TTarget>(object source, MapperContext context) => Map <TTarget>(source, source?.GetType(), context);
/// <summary>
/// Maps an enumerable of source objects to a new list of target objects.
/// </summary>
/// <typeparam name="TSourceElement">The type of the source objects.</typeparam>
/// <typeparam name="TTargetElement">The type of the target objects.</typeparam>
/// <param name="source">The source objects.</param>
/// <param name="context">A mapper context.</param>
/// <returns>A list containing the target objects.</returns>
public List <TTargetElement> MapEnumerable <TSourceElement, TTargetElement>(IEnumerable <TSourceElement> source, MapperContext context)
{
return(source.Select(x => Map <TSourceElement, TTargetElement>(x, context)).ToList());
}
private TTarget MapEnumerableInternal <TTarget>(IEnumerable source, Type targetGenericArg, Func <object, MapperContext, object> ctor, Action <object, object, MapperContext> map, MapperContext context)
{
var targetList = (IList)Activator.CreateInstance(typeof(List <>).MakeGenericType(targetGenericArg));
foreach (var sourceItem in source)
{
var targetItem = ctor(sourceItem, context);
map(sourceItem, targetItem, context);
targetList.Add(targetItem);
}
object target = targetList;
if (typeof(TTarget).IsArray)
{
var elementType = typeof(TTarget).GetElementType();
if (elementType == null)
{
throw new Exception("panic");
}
var targetArray = Array.CreateInstance(elementType, targetList.Count);
targetList.CopyTo(targetArray, 0);
target = targetArray;
}
return((TTarget)target);
}
