From db4912188c7f380c229b9cb0477d7bd2d07e6ed0 Mon Sep 17 00:00:00 2001
From: Austin Drenski <austin@austindrenski.io>
Date: Wed, 17 Jan 2024 09:20:58 -0500
Subject: [PATCH] Apply #if/#else patch for lower TFMs

Signed-off-by: Austin Drenski <austin@austindrenski.io>
---
 src/OpenFeature/Api.cs               | 21 ++++++++++++++++++++-
 src/OpenFeature/OpenFeatureClient.cs | 21 ++++++++++++++++++++-
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/src/OpenFeature/Api.cs b/src/OpenFeature/Api.cs
index 8d0e22f5..440242da 100644
--- a/src/OpenFeature/Api.cs
+++ b/src/OpenFeature/Api.cs
@@ -127,7 +127,26 @@ public FeatureClient GetClient(string name = null, string version = null, ILogge
         /// </para>
         /// </summary>
         /// <param name="hooks">A list of <see cref="Hook"/></param>
-        public void AddHooks(IEnumerable<Hook> hooks) => this._hooks.PushRange(hooks.ToArray());
+        public void AddHooks(IEnumerable<Hook> hooks)
+#if NET7_0_OR_GREATER
+            => this._hooks.PushRange(hooks as Hook[] ?? hooks.ToArray());
+#else
+        {
+            // See: https://github.com/dotnet/runtime/issues/62121
+            if (hooks is Hook[] array)
+            {
+                if (array.Length > 0)
+                    this._hooks.PushRange(array);
+
+                return;
+            }
+
+            array = hooks.ToArray();
+
+            if (array.Length > 0)
+                this._hooks.PushRange(array);
+        }
+#endif
 
         /// <summary>
         /// Adds a hook to global hooks list
diff --git a/src/OpenFeature/OpenFeatureClient.cs b/src/OpenFeature/OpenFeatureClient.cs
index 9ea9b13a..d979dae1 100644
--- a/src/OpenFeature/OpenFeatureClient.cs
+++ b/src/OpenFeature/OpenFeatureClient.cs
@@ -106,7 +106,26 @@ public void RemoveHandler(ProviderEventTypes type, EventHandlerDelegate handler)
         }
 
         /// <inheritdoc />
-        public void AddHooks(IEnumerable<Hook> hooks) => this._hooks.PushRange(hooks.ToArray());
+        public void AddHooks(IEnumerable<Hook> hooks)
+#if NET7_0_OR_GREATER
+            => this._hooks.PushRange(hooks as Hook[] ?? hooks.ToArray());
+#else
+        {
+            // See: https://github.com/dotnet/runtime/issues/62121
+            if (hooks is Hook[] array)
+            {
+                if (array.Length > 0)
+                    this._hooks.PushRange(array);
+
+                return;
+            }
+
+            array = hooks.ToArray();
+
+            if (array.Length > 0)
+                this._hooks.PushRange(array);
+        }
+#endif
 
         /// <inheritdoc />
         public IEnumerable<Hook> GetHooks() => this._hooks.Reverse();