isParentOf method

bool isParentOf(LexicalNode target)

Whether this node is an ancestor of target.

Implementation

bool isParentOf(LexicalNode target) {
  if (_key == target._key) return false;
  var parent = target.getParent();
  while (parent != null) {
    if (parent.key == _key) return true;
    parent = parent.getParent();
  }
  return false;
}