init

2024-03-13 00:33:46 +01:00
commit e124a47765
19374 changed files with 9806149 additions and 0 deletions
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+
+namespace Kreta.Ellenorzo.BL.VN.Helpers
+{
+    public class LambdaComparer<T> : IEqualityComparer<T>
+    {
+        private readonly Func<T, T, bool> _lambdaComparer;
+        private readonly Func<T, int> _lambdaHash;
+
+        public LambdaComparer(Func<T, T, bool> lambdaComparer) :
+            this(lambdaComparer, o => 0)
+        {
+        }
+
+        public LambdaComparer(Func<T, T, bool> lambdaComparer, Func<T, int> lambdaHash)
+        {
+            _lambdaComparer = lambdaComparer ?? throw new ArgumentNullException(nameof(lambdaComparer));
+            _lambdaHash = lambdaHash ?? throw new ArgumentNullException(nameof(lambdaHash));
+        }
+
+        public bool Equals(T x, T y) => _lambdaComparer(x, y);
+
+        public int GetHashCode(T obj) => _lambdaHash(obj);
+    }
+}