static bool TryFind(Node n, ExpConstants id, out Node found)
{
if ((ExpConstants)n.Id == id)
{
found = n;
return(true);
}
for (var i = 0; i < n.GetChildCount(); ++i)
{
if (TryFind(n[i], id, out found))
{
return(true);
}
}
found = default;
return(false);
}
static Node Find(Node n, ExpConstants id)
{
Assert.IsTrue(TryFind(n, id, out var found));
return(found);
}