From dcad6175e43ae98f540f4b79f131906906897a82 Mon Sep 17 00:00:00 2001
From: liiir1985 <liiir1985@hotmail.com>
Date: Tue, 25 Aug 2020 12:55:39 +0800
Subject: [PATCH] Replaced c# 7 usage to improve compatibility

---
 ILRuntime/Runtime/Stack/StackObject.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ILRuntime/Runtime/Stack/StackObject.cs b/ILRuntime/Runtime/Stack/StackObject.cs
index 579616be..7438ca9c 100644
--- a/ILRuntime/Runtime/Stack/StackObject.cs
+++ b/ILRuntime/Runtime/Stack/StackObject.cs
@@ -223,7 +223,8 @@ public unsafe static void Initialized(StackObject* esp, IType type)
             }
             else if (type.IsEnum)
             {
-                if(type is ILType ilType)
+                ILType ilType = type as ILType;
+                if (ilType != null)
                 {
                     Initialized(esp, ilType.FieldTypes[0]);
                 }