public boolean isChildOf(@Nullable final WrapImpl wrap, LeafBlockWrapper leaf) {
if (getIgnoreParentWraps()) return false;
if (leaf != null && myIgnoredWraps != null) {
Collection<LeafBlockWrapper> leaves = myIgnoredWraps.get(wrap);
if (leaves != null && leaves.contains(leaf)) {
return false;
}
}
for (WrapImpl parent : myParents) {
if (parent == wrap) return true;
if (parent.isChildOf(wrap, leaf)) return true;
}
return false;
}
/**
* Allows to register given wrap as a parent of the current wrap.
*
* <p><code>'Parent'</code> wrap registration here means that {@link #isChildOf(WrapImpl,
* LeafBlockWrapper)} returns <code>'true'</code> if given wrap is used as a <code>'parent'</code>
* argument.
*
* @param parent parent wrap to register for the current wrap
*/
void registerParent(@Nullable WrapImpl parent) {
if (parent == this) return;
if (parent == null) return;
if (parent.isChildOf(this, null)) return;
if (myParents == emptyParentsSet) myParents = new HashSet<WrapImpl>(5);
myParents.add(parent);
}