From cdf7d2a0e268c1b5e1082a1fe062c2c6757121cb Mon Sep 17 00:00:00 2001
From: ndrwrbgs <ndrwrbgs@users.noreply.github.com>
Date: Fri, 28 Feb 2020 12:15:57 -0800
Subject: [PATCH] Fixes #303, add Rethrow() method

---
 src/CacheManager.Core/BaseCacheManager.cs |  3 ++-
 src/CacheManager.Core/Utility/Throw.cs    | 24 +++++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 src/CacheManager.Core/Utility/Throw.cs

diff --git a/src/CacheManager.Core/BaseCacheManager.cs b/src/CacheManager.Core/BaseCacheManager.cs
index 353f11bc..ff48a6ff 100644
--- a/src/CacheManager.Core/BaseCacheManager.cs
+++ b/src/CacheManager.Core/BaseCacheManager.cs
@@ -5,6 +5,7 @@
 using System.Linq;
 using CacheManager.Core.Internal;
 using CacheManager.Core.Logging;
+using CacheManager.Core.Utility;
 using static CacheManager.Core.Utility.Guard;
 
 namespace CacheManager.Core
@@ -127,7 +128,7 @@ private BaseCacheManager(string name, ICacheManagerConfiguration configuration)
             catch (Exception ex)
             {
                 Logger.LogError(ex, "Error occurred while creating the cache manager.");
-                throw ex.InnerException ?? ex;
+                Throw.Rethrow(ex.InnerException ?? ex);
             }
         }
 
diff --git a/src/CacheManager.Core/Utility/Throw.cs b/src/CacheManager.Core/Utility/Throw.cs
new file mode 100644
index 00000000..b6106ed3
--- /dev/null
+++ b/src/CacheManager.Core/Utility/Throw.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Runtime.ExceptionServices;
+
+namespace CacheManager.Core.Utility
+{
+    /// <summary>
+    /// <see cref="Exception"/> related helper.
+    /// </summary>
+    internal static class Throw
+    {
+        /// <summary>
+        /// Rethrows the supplied exception without losing its stack trace.
+        /// Prefer <code>throw;</code> where possible, this method is useful for rethrowing
+        /// <see cref="Exception.InnerException" />
+        /// which cannot be done with the <code>throw;</code> semantics.
+        /// </summary>
+        /// <param name="exception">The exception.</param>
+        public static void Rethrow(
+            this Exception exception)
+        {
+            ExceptionDispatchInfo.Capture(exception).Throw();
+        }
+    }
+}