private static Node replaceCurrent(Node parent, Node previous, Node current, Node replacement)
{
if (previous == null)
{
if (!(current == parent.FirstChild))
{
Context.CodeBug();
}
parent.replaceChild(current, replacement);
}
else if (previous.next == current)
{
// Check cachedPrev.next == current is necessary due to possible
// tree mutations
parent.replaceChildAfter(previous, replacement);
}
else
{
parent.replaceChild(current, replacement);
}
return(replacement);
}
private static Node replaceCurrent (Node parent, Node previous, Node current, Node replacement)
{
if (previous == null) {
if (!(current == parent.FirstChild))
Context.CodeBug ();
parent.replaceChild (current, replacement);
}
else if (previous.next == current) {
// Check cachedPrev.next == current is necessary due to possible
// tree mutations
parent.replaceChildAfter (previous, replacement);
}
else {
parent.replaceChild (current, replacement);
}
return replacement;
}