1 files changed, 37 insertions, 0 deletions
diff --git a/Mammoth/Couscous/java/util/AbstractMap.cs b/Mammoth/Couscous/java/util/AbstractMap.cs
new file mode 100644
index 0000000..f619267
--- /dev/null
+++ b/Mammoth/Couscous/java/util/AbstractMap.cs
@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using System.Linq;
+using Mammoth.Couscous.java.lang;
+
+namespace Mammoth.Couscous.java.util {
+    internal abstract class AbstractMap<TKey, TValue> : Map<TKey, TValue> {
+        public override bool Equals(object other) {
+            var otherMap = other as Map;
+            if (otherMap == null) {
+                return false;
+            } else {
+                return Equals(otherMap);
+            }
+        }
+        
+        public bool Equals(Map other) {
+            var first = AsUntypedDictionary();
+            var second = other.AsUntypedDictionary();
+            return
+                first.Count == second.Count &&
+                first.Keys.Cast<object>().All(key => second.Contains(key) && first[key].Equals(second[key]));
+        }
+        
+        public override int GetHashCode() {
+            throw new System.NotSupportedException();
+        }
+        
+        public abstract void put(TKey key, TValue value);
+        public abstract bool containsKey(TKey key);
+        public abstract Set<Map__Entry<TKey, TValue>> entrySet();
+        public abstract Collection<TValue> values();
+	
+        public abstract Optional<TValue> _lookup(TKey key);
+        public abstract System.Collections.Generic.IDictionary<TKey, TValue> AsDictionary();
+        public abstract System.Collections.IDictionary AsUntypedDictionary();
+    }
+}