/// <summary>
/// 深拷贝
/// </summary>
/// <typeparam name="TSource">源类型</typeparam>
/// <typeparam name="TTarget">目标类型</typeparam>
/// <param name="source"></param>
/// <returns></returns>
public static TTarget MapTo <TSource, TTarget>(this TSource source)
where TTarget : class
where TSource : class
{
if (Cache.MapToCache.TryGetValue($"{typeof(TSource).FullName}+{typeof(TTarget).FullName}", out Delegate deleg))
{
return(((Func <TSource, TTarget>)deleg)?.Invoke(source));
}
deleg = SmartBuilder.DynamicMethod <Func <TSource, TTarget> >(string.Empty, IL =>
{
if (source is IDictionary)
{
}
if (source is Stream)
{
var _source = IL.NewObject(IL.ArgumentRef <TSource>(0));
var _target = IL.NewObject(new MemoryStream());
_source.Call("CopyTo", _target);
_target.Output();
}
else if (source.IsClass())
{
var _source = IL.NewEntity <TSource>(IL.ArgumentRef <TSource>(0));
var _target = IL.NewEntity <TTarget>();
foreach (var sourceItem in typeof(TSource).GetProperties())
{
var targetItem = typeof(TTarget).GetProperty(sourceItem.Name);
if (targetItem == null || sourceItem.PropertyType != targetItem.PropertyType)
{
continue;
}
_target.SetValue(sourceItem.Name, _source.GetValue(sourceItem.Name));
}
_target.Output();
}
else
{
throw new TypeAccessException();
}
IL.Return();
});
if (!Cache.MapToCache.TryAdd($"{typeof(TSource).FullName}+{typeof(TTarget).FullName}", deleg))
{
throw new ArgumentException();
}
return(((Func <TSource, TTarget>)deleg)?.Invoke(source));
}
