public int indexOf(Object o) {
ISeq s = seq();
for (int i = 0; s != null; s = s.next(), i++) {
if (Util.equiv(s.first(), o)) return i;
}
return -1;
}
public boolean equiv(Object obj) {
if (!(obj instanceof Map)) return false;
if (obj instanceof IPersistentMap && !(obj instanceof MapEquivalence)) return false;
Map m = (Map) obj;
if (m.size() != size()) return false;
for (ISeq s = seq(); s != null; s = s.next()) {
Map.Entry e = (Map.Entry) s.first();
boolean found = m.containsKey(e.getKey());
if (!found || !Util.equiv(e.getValue(), m.get(e.getKey()))) return false;
}
return true;
}
public boolean contains(Object o) {
for (ISeq s = seq(); s != null; s = s.next()) {
if (Util.equiv(s.first(), o)) return true;
}
return false;
}