internal static void CollectConstituentTokensAndDiagnostics(this GreenNode node, InternalSyntax.SyntaxListBuilder <SyntaxToken.Green> tokenListBuilder, IList <DiagnosticInfo> nonTokenDiagnostics)
{
if (node == null)
{
return;
}
if (node.IsToken)
{
tokenListBuilder.Add((SyntaxToken.Green)node);
return;
}
DiagnosticInfo[] diagnostics = node.GetDiagnostics();
if (diagnostics != null && diagnostics.Length > 0)
{
foreach (var diag in diagnostics)
{
nonTokenDiagnostics.Add(diag);
}
}
// Recurse to subtrees.
for (var i = 0; i < node.SlotCount; i++)
{
var green = node.GetSlot(i);
if (green != null)
{
green.CollectConstituentTokensAndDiagnostics(tokenListBuilder, nonTokenDiagnostics);
}
}
}
public void Add(GreenNode item)
{
if (item == null)
{
return;
}
if (item.IsList)
{
int slotCount = item.SlotCount;
// Necessary, but not sufficient (e.g. for nested lists).
EnsureAdditionalCapacity(slotCount);
for (int i = 0; i < slotCount; i++)
{
this.Add(item.GetSlot(i));
}
}
else
{
EnsureAdditionalCapacity(1);
_nodes[Count++].Value = item;
}
}
internal GreenNode GetLastNonmissingTerminal()
{
GreenNode node = this;
do
{
GreenNode nonmissingChild = null;
for (int i = node.SlotCount - 1; i >= 0; i--)
{
var child = node.GetSlot(i);
if (child != null)
{
nonmissingChild = child;
break;
}
}
node = nonmissingChild;
}while (node?.SlotCount > 0);
return(node);
}
internal GreenNode GetFirstTerminal()
{
GreenNode node = this;
do
{
GreenNode firstChild = null;
for (int i = 0, n = node.SlotCount; i < n; i++)
{
var child = node.GetSlot(i);
if (child != null)
{
firstChild = child;
break;
}
}
node = firstChild;
} while (node?.SlotCount > 0);
return(node);
}