451452453454455456457458459460461
key = val.elm(keypos1); IPersistentCollection coll = (IPersistentCollection) map.valAt(key); if (coll instanceof IPersistentSet) { IPersistentSet set = (IPersistentSet) coll; set = set.disjoin(val); if (set != coll) { count += 1; if (set.count() == 0) { map = map.without(key); } else {