public static IEnumerable <ListTreeNode <T> > Traverse <T>(this ListTreeNode <T> self)
where T : IListTreeItem, IValue <T>
{
yield return(self);
if (self.IsArray())
{
foreach (var x in self.ArrayItems())
{
foreach (var y in x.Traverse())
{
yield return(y);
}
}
}
else if (self.IsMap())
{
foreach (var kv in self.ObjectItems())
{
foreach (var y in kv.Value.Traverse())
{
yield return(y);
}
}
}
}
public static int GetObjectCount <T>(this ListTreeNode <T> self)
where T : IListTreeItem, IValue <T>
{
if (!self.IsMap())
{
throw new DeserializationException("is not object");
}
return(self.Children.Count() / 2);
}
public static IEnumerable <KeyValuePair <ListTreeNode <T>, ListTreeNode <T> > > ObjectItems <T>(
this ListTreeNode <T> self)
where T : IListTreeItem, IValue <T>
{
if (!self.IsMap())
{
throw new DeserializationException("is not object");
}
var it = self.Children.GetEnumerator();
while (it.MoveNext())
{
var key = it.Current;
it.MoveNext();
yield return(new KeyValuePair <ListTreeNode <T>, ListTreeNode <T> >(key, it.Current));
}
}
public static IEnumerable <ListTreeNode <T> > GetNodes <T>(this ListTreeNode <T> self,
JsonPointer jsonPointer)
where T : IListTreeItem, IValue <T>
{
if (jsonPointer.Path.Count == 0)
{
yield return(self);
yield break;
}
if (self.IsArray())
{
// array
if (jsonPointer[0][0] == '*')
{
// wildcard
foreach (var child in self.ArrayItems())
{
foreach (var childChild in child.GetNodes(jsonPointer.Unshift()))
{
yield return(childChild);
}
}
}
else
{
var index = jsonPointer[0].ToInt32();
var child = self.ArrayItems().Skip(index).First();
foreach (var childChild in child.GetNodes(jsonPointer.Unshift()))
{
yield return(childChild);
}
}
}
else if (self.IsMap())
{
// object
if (jsonPointer[0][0] == '*')
{
// wildcard
foreach (var kv in self.ObjectItems())
{
foreach (var childChild in kv.Value.GetNodes(jsonPointer.Unshift()))
{
yield return(childChild);
}
}
}
else
{
ListTreeNode <T> child;
try
{
child = self.ObjectItems().First(x => x.Key.GetUtf8String() == jsonPointer[0]).Value;
}
catch (Exception)
{
// key
self.AddKey(jsonPointer[0]);
// value
self.AddValue(default(ArraySegment <byte>), ValueNodeType.Object);
child = self.ObjectItems().First(x => x.Key.GetUtf8String() == jsonPointer[0]).Value;
}
foreach (var childChild in child.GetNodes(jsonPointer.Unshift()))
{
yield return(childChild);
}
}
}
else
{
throw new NotImplementedException();
}
}