public static IDictionary <Type, MethodInfo> GetHandlers <T>(T target, InvocationHandlerType type)
{
string typestr;
switch (type)
{
case InvocationHandlerType.Event: typestr = "ApplyEvent"; break;
case InvocationHandlerType.Command: typestr = "ExecuteCommand"; break;
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
return(target.GetType()
.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
.Where(m => m.Name == typestr)
.Where(m => m.GetParameters().Length == 1)
.ToDictionary(m => m.GetParameters().First().ParameterType, m => m));
}
private static void Invoke <T>(T target, object arg, InvocationHandlerType handlerType)
{
var type = arg.GetType();
if (!GetHandlers(target, handlerType).TryGetValue(type, out var method))
{
return;
}
try
{
method.Invoke(target, new[] { arg });
}
catch (TargetInvocationException ex)
{
if (InternalPreserveStackTraceMethod != null)
{
InternalPreserveStackTraceMethod.Invoke(ex.InnerException, new object[0]);
}
}
}
