public static boolean mapEquals(IPersistentMap m1, Object obj) {
if (m1 == obj) return true;
if (!(obj instanceof Map)) return false;
Map m = (Map) obj;
if (m.size() != m1.count()) return false;
for (ISeq s = m1.seq(); s != null; s = s.next()) {
Map.Entry e = (Map.Entry) s.first();
boolean found = m.containsKey(e.getKey());
if (!found || !Util.equals(e.getValue(), m.get(e.getKey()))) return false;
}
return true;
}
public static int mapHash(IPersistentMap m) {
int hash = 0;
for (ISeq s = m.seq(); s != null; s = s.next()) {
Map.Entry e = (Map.Entry) s.first();
hash +=
(e.getKey() == null ? 0 : e.getKey().hashCode())
^ (e.getValue() == null ? 0 : e.getValue().hashCode());
}
return hash;
}
public IPersistentCollection cons(Object o) {
if (o instanceof Map.Entry) {
Map.Entry e = (Map.Entry) o;
return assoc(e.getKey(), e.getValue());
} else if (o instanceof IPersistentVector) {
IPersistentVector v = (IPersistentVector) o;
if (v.count() != 2)
throw new IllegalArgumentException("Vector arg to map conj must be a pair");
return assoc(v.nth(0), v.nth(1));
}
IPersistentMap ret = this;
for (ISeq es = RT.seq(o); es != null; es = es.next()) {
Map.Entry e = (Map.Entry) es.first();
ret = ret.assoc(e.getKey(), e.getValue());
}
return ret;
}
