public void NonEmptyTree_areNotFrozen_after_creating_or_changing()
{
// non empty tree are not frozen after creating
SigoAssert.False(tree.IsFrozen());
// not frozen after changing
tree = tree.Freeze().Set1("v", Sigo.From("v+"));
SigoAssert.False(tree.IsFrozen());
// leafs and elements are frozen always frozen
SigoAssert.True(leaf.IsFrozen());
SigoAssert.True(e3.IsFrozen());
}
private static ISigo Select(ISigo r, ISigo a, ISigo b)
{
if (a.IsFrozen() && Sigo.Equals(r, a))
{
return(a);
}
if (b.IsFrozen() && Sigo.Equals(r, b))
{
return(b);
}
return(r);
}
public static ISigo Clone(ISigo a)
{
if (a.IsFrozen())
{
return(a);
}
var ret = Sigo.Create(a.Flags & 7);
foreach (var e in a)
{
ret = ret.Set1(e.Key, Clone(e.Value));
}
return(ret);
}