private static void ValidateRequiredParameters(CommandTree tree)
{
var node = tree.GetRootCommand();
while (node != null)
{
foreach (var parameter in node.Unmapped)
{
if (parameter.Required)
{
switch (parameter)
{
case CommandArgument argument:
throw RuntimeException.MissingRequiredArgument(node, argument);
}
}
}
node = node.Next;
}
}