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// Note to JL: Changed Hashset to List
namespace Antlr.Runtime.Debug.Misc {
using System.Collections.Generic;
public class DoubleKeyMap<TKey1, TKey2, TValue> {
internal IDictionary<TKey1, IDictionary<TKey2, TValue>> data = new Dictionary<TKey1, IDictionary<TKey2, TValue>>();
public virtual TValue Put(TKey1 k1, TKey2 k2, TValue v) {
IDictionary<TKey2, TValue> data2;
data.TryGetValue(k1, out data2);
TValue prev = default(TValue);
if (data2 == null) {
data2 = new Dictionary<TKey2, TValue>();
data[k1] = data2;
} else {
data2.TryGetValue(k2, out prev);
}
data2[k2] = v;
return prev;
}
public virtual TValue Get(TKey1 k1, TKey2 k2) {
IDictionary<TKey2, TValue> data2;
data.TryGetValue(k1, out data2);
if (data2 == null)
return default(TValue);
TValue value;
data2.TryGetValue(k2, out value);
return value;
}
public virtual IDictionary<TKey2, TValue> Get(TKey1 k1) {
IDictionary<TKey2, TValue> value;
data.TryGetValue(k1, out value);
return value;
}
/** Get all values associated with primary key */
public virtual ICollection<TValue> Values(TKey1 k1) {
IDictionary<TKey2, TValue> data2;
data.TryGetValue(k1, out data2);
if (data2 == null)
return null;
return data2.Values;
}
/** get all primary keys */
public virtual ICollection<TKey1> KeySet() {
return data.Keys;
}
/** get all secondary keys associated with a primary key */
public virtual ICollection<TKey2> KeySet(TKey1 k1) {
IDictionary<TKey2, TValue> data2;
data.TryGetValue(k1, out data2);
if (data2 == null)
return null;
return data2.Keys;
}
public virtual ICollection<TValue> Values() {
List<TValue> s = new List<TValue>();
foreach (IDictionary<TKey2, TValue> k2 in data.Values) {
foreach (TValue v in k2.Values) {
s.Add(v);
}
}
return s;
}
}
}
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