internal override InvocationExpression Rewrite(Expression lambda, Expression[] arguments)
{
Debug.Assert(lambda != null);
Debug.Assert(arguments == null || arguments.Length == 4);
if (arguments != null)
{
return Expression.Invoke(lambda, arguments[0], arguments[1], arguments[2], arguments[3]);
}
return Expression.Invoke(lambda, ReturnObject<Expression>(_arg0), _arg1, _arg2, _arg3);
}
}