public TReturnType Send(object command, CancellationToken token)
{
var commandType = Guard.NotNull(command, nameof(command)).GetType();
var handlerType = HandlerTypeFor(commandType);
var handler = GetHandler(handlerType) ?? throw UnresolvedCommandHandler.Type(handlerType);
return(Handle(handlerType, commandType)(handler, command, token));
}
private Func <object, object, CancellationToken, TReturnType> Handle(Type handlerType, Type commandType)
{
if (!handlers.TryGetValue(commandType, out var handle))
{
var method = GetMethod(handlerType, commandType)
?? throw UnresolvedCommandHandler.Method(typeof(TReturnType), handlerType, HandlerMethod, commandType);
handle = GetExpression(method).Compile();
handlers[commandType] = handle;
}
return(handle);
}
