initial commit

2017-06-19 17:30:18 -04:00
commit 6e265ea24b
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+/*
+ * Copyright (C) 2012-2017 CypherCore <http://github.com/CypherCore>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace System.Collections.Generic
+{
+    public class MultiMapEnumerator<TKey, TValue> : IEnumerator<KeyValuePair<TKey, TValue>>
+    {
+        MultiMap<TKey, TValue> _map;
+        IEnumerator<TKey> _keyEnumerator;
+        IEnumerator<TValue> _valueEnumerator;
+
+        public MultiMapEnumerator(MultiMap<TKey, TValue> map)
+        {
+            _map = map;
+            Reset();
+        }
+
+        object IEnumerator.Current
+        {
+            get
+            {
+                return Current;
+            }
+        }
+
+        public KeyValuePair<TKey, TValue> Current
+        {
+            get
+            {
+                return new KeyValuePair<TKey, TValue>(_keyEnumerator.Current, _valueEnumerator.Current);
+            }
+        }
+
+        public void Dispose()
+        {
+            _keyEnumerator = null;
+            _valueEnumerator = null;
+            _map = null;
+        }
+
+        public bool MoveNext()
+        {
+            if (!_valueEnumerator.MoveNext())
+            {
+                if (!_keyEnumerator.MoveNext())
+                    return false;
+                _valueEnumerator = _map[_keyEnumerator.Current].GetEnumerator();
+                _valueEnumerator.MoveNext();
+                return true;
+            }
+            return true;
+        }
+
+        public void Reset()
+        {
+            _keyEnumerator = _map.Keys.GetEnumerator();
+            _valueEnumerator = new List<TValue>().GetEnumerator();
+        }
+    }
+
+    public class SortedMultiMapEnumerator<TKey, TValue> : IEnumerator<KeyValuePair<TKey, TValue>>
+    {
+        SortedMultiMap<TKey, TValue> _map;
+        IEnumerator<TKey> _keyEnumerator;
+        IEnumerator<TValue> _valueEnumerator;
+
+        public SortedMultiMapEnumerator(SortedMultiMap<TKey, TValue> map)
+        {
+            _map = map;
+            Reset();
+        }
+
+        object IEnumerator.Current
+        {
+            get
+            {
+                return Current;
+            }
+        }
+
+        public KeyValuePair<TKey, TValue> Current
+        {
+            get
+            {
+                return new KeyValuePair<TKey, TValue>(_keyEnumerator.Current, _valueEnumerator.Current);
+            }
+        }
+
+        public void Dispose()
+        {
+            _keyEnumerator = null;
+            _valueEnumerator = null;
+            _map = null;
+        }
+
+        public bool MoveNext()
+        {
+            if (!_valueEnumerator.MoveNext())
+            {
+                if (!_keyEnumerator.MoveNext())
+                    return false;
+                _valueEnumerator = _map[_keyEnumerator.Current].GetEnumerator();
+                _valueEnumerator.MoveNext();
+                return true;
+            }
+            return true;
+        }
+
+        public void Reset()
+        {
+            _keyEnumerator = _map.Keys.GetEnumerator();
+            _valueEnumerator = new List<TValue>().GetEnumerator();
+        }
+    }
+}