private static int IndexOfNodeInParent(SyntaxNode node)
{
if (node.Parent == null)
{
return(0);
}
var children = node.Parent.ChildNodesAndTokens();
var index = SyntaxNodeOrToken.GetFirstChildIndexSpanningPosition(children, ((CSharp.CSharpSyntaxNode)node).Position);
for (int i = index, n = children.Count; i < n; i++)
{
var child = children[i];
if (child == node)
{
return(i);
}
}
throw ExceptionUtilities.Unreachable;
}