/**
* Do a Shift style insert :
* 1) if there is no data "there", then just set it
* 2) if there is already a list "there", just add the data to the list
* 3) if there something other than a list there, grab it and stuff it and the data into a list
* and overwrite what is there with a list.
*/
public override JToken HandleFinalSet(ITraversalStep traversalStep, JToken tree, string key, JToken data)
{
var optSub = traversalStep.Get(tree, key);
if (optSub == null || optSub.Type == JTokenType.Null)
{
// nothing is here so just set the data
traversalStep.OverwriteSet(tree, key, data);
}
else if (optSub is JArray arr)
{
// there is a list here, so we just add to it
arr.Add(data);
}
else
{
// take whatever is there and make it the first element in an Array
var temp = new JArray();
temp.Add(optSub);
temp.Add(data);
traversalStep.OverwriteSet(tree, key, temp);
}
return(data);
}
/**
* Only make a new instance of a container object for SET, if there is nothing "there".
*/
public override JToken HandleIntermediateGet(ITraversalStep traversalStep, JToken tree, string key, TraversalStepOperation op)
{
var sub = traversalStep.Get(tree, key);
if ((sub == null || sub.Type == JTokenType.Null) && op == TraversalStepOperation.SET)
{
// get our child to make the container object, so it will be happy with it
sub = traversalStep.GetChild().NewContainer();
traversalStep.OverwriteSet(tree, key, sub);
}
return(sub);
}
public override JToken HandleFinalSet(ITraversalStep traversalStep, JToken tree, string key, JToken data)
{
return(traversalStep.OverwriteSet(tree, key, data));
}
