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* Copyright by the contributors to the Dafny Project
* SPDX-License-Identifier: MIT
*******************************************************************************/
package DafnyLibraries;
import dafny.DafnySet;
import dafny.DafnyMap;
import dafny.Tuple2;
import dafny.TypeDescriptor;
import dafny.Helpers;
import java.util.concurrent.*;
import java.util.ArrayList;
import java.util.Map;
import java.math.BigInteger;
public class MutableMap<K,V> extends _ExternBase_MutableMap<K,V> {
private ConcurrentHashMap<K,V> m;
public MutableMap(dafny.TypeDescriptor<K> _td_K, dafny.TypeDescriptor<V> _td_V) {
super(_td_K, _td_V);
m = new ConcurrentHashMap<K,V>();
}
@Override
public DafnyMap<K,V> content() {
return new DafnyMap<K,V>(m);
}
@Override
public void Put(K k, V v) {
m.put(k, v);
}
@Override
public DafnySet<? extends K> Keys() {
return new DafnySet(m.keySet());
}
@Override
public boolean HasKey(K k) {
return m.containsKey(k);
}
@Override
public DafnySet<? extends V> Values() {
return new DafnySet(m.values());
}
@Override
public DafnySet<? extends Tuple2<K,V>> Items() {
ArrayList<Tuple2<K, V>> list = new ArrayList<Tuple2<K, V>>();
for (Map.Entry<K, V> entry : m.entrySet()) {
list.add(new Tuple2<K, V>(entry.getKey(), entry.getValue()));
}
return new DafnySet<Tuple2<K, V>>(list);
}
@Override
public V Select(K k) {
return m.get(k);
}
@Override
public void Remove(K k) {
m.remove(k);
}
@Override
public BigInteger Size() {
return BigInteger.valueOf(m.size());
}
} |