/// <summary>
/// Represents an script-based XML document.
/// </summary>
/// <param name="Root">Root element of document.</param>
/// <param name="ProcessingInstructions">Processing Instructions.</param>
/// <param name="Start">Start position in script expression.</param>
/// <param name="Length">Length of expression covered by node.</param>
/// <param name="Expression">Expression containing script.</param>
public XmlScriptDocument(XmlScriptElement Root, XmlScriptProcessingInstruction[] ProcessingInstructions,
int Start, int Length, Expression Expression)
: base(Start, Length, Expression)
{
this.root = Root;
this.processingInstructions = ProcessingInstructions;
}
/// <summary>
/// Calls the callback method for all child nodes.
/// </summary>
/// <param name="Callback">Callback method to call.</param>
/// <param name="State">State object to pass on to the callback method.</param>
/// <param name="DepthFirst">If calls are made depth first (true) or on each node and then its leaves (false).</param>
/// <returns>If the process was completed.</returns>
public override bool ForAllChildNodes(ScriptNodeEventHandler Callback, object State, bool DepthFirst)
{
int i, c = this.processingInstructions.Length;
ScriptNode Node;
if (DepthFirst)
{
for (i = 0; i < c; i++)
{
if (!this.processingInstructions[i].ForAllChildNodes(Callback, State, DepthFirst))
{
return(false);
}
}
if (!this.root.ForAllChildNodes(Callback, State, DepthFirst))
{
return(false);
}
}
for (i = 0; i < c; i++)
{
Node = this.processingInstructions[i];
if (!Callback(ref Node, State))
{
return(false);
}
if (Node != this.processingInstructions[i])
{
if (Node is XmlScriptProcessingInstruction PI)
{
this.processingInstructions[i] = PI;
}
else
{
throw new ScriptRuntimeException("Incompatible node change.", this);
}
}
}
Node = this.root;
if (!Callback(ref Node, State))
{
return(false);
}
if (Node != this.root)
{
if (Node is XmlScriptElement Root)
{
this.root = Root;
}
else
{
throw new ScriptRuntimeException("Incompatible node change.", this);
}
}
if (!DepthFirst)
{
for (i = 0; i < c; i++)
{
if (!this.processingInstructions[i].ForAllChildNodes(Callback, State, DepthFirst))
{
return(false);
}
}
if (!this.root.ForAllChildNodes(Callback, State, DepthFirst))
{
return(false);
}
}
return(true);
}
