no more windows??

2DGAMELIB/System.Diagnostics.CodeAnalysis/AllowNullAttribute.cs

@@ -1,6 +1,9 @@
-namespace System.Diagnostics.CodeAnalysis;
-
-[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter)]
-internal sealed class AllowNullAttribute : Attribute
+namespace System.Diagnostics.CodeAnalysis
 {
+
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter)]
+    internal sealed class AllowNullAttribute : Attribute
+    {
+    }
+
 }

2DGAMELIB/System.Diagnostics.CodeAnalysis/DoesNotReturnIfAttribute.cs

@@ -1,12 +1,13 @@
-namespace System.Diagnostics.CodeAnalysis;
-
-[AttributeUsage(AttributeTargets.Parameter)]
-internal class DoesNotReturnIfAttribute : Attribute
+namespace System.Diagnostics.CodeAnalysis
 {
-    public DoesNotReturnIfAttribute(bool parameterValue)
+    [AttributeUsage(AttributeTargets.Parameter)]
+    internal class DoesNotReturnIfAttribute : Attribute
     {
-        ParameterValue = parameterValue;
-    }
+        public DoesNotReturnIfAttribute(bool parameterValue)
+        {
+            ParameterValue = parameterValue;
+        }
 
-    public bool ParameterValue { get; }
+        public bool ParameterValue { get; }
+    }
 }

2DGAMELIB/System.Diagnostics.CodeAnalysis/MaybeNullAttribute.cs

@@ -1,7 +1,8 @@
-namespace System.Diagnostics.CodeAnalysis;
-
-[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter |
-                AttributeTargets.ReturnValue)]
-internal sealed class MaybeNullAttribute : Attribute
+namespace System.Diagnostics.CodeAnalysis
 {
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter |
+                    AttributeTargets.ReturnValue)]
+    internal sealed class MaybeNullAttribute : Attribute
+    {
+    }
 }

2DGAMELIB/System.Diagnostics.CodeAnalysis/NotNullAttribute.cs

@@ -1,8 +1,9 @@
-namespace System.Diagnostics.CodeAnalysis;
-
-[AttributeUsage(
-    AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter |
-    AttributeTargets.ReturnValue, AllowMultiple = true)]
-internal sealed class NotNullAttribute : Attribute
+namespace System.Diagnostics.CodeAnalysis
 {
+    [AttributeUsage(
+        AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter |
+        AttributeTargets.ReturnValue, AllowMultiple = true)]
+    internal sealed class NotNullAttribute : Attribute
+    {
+    }
 }

2DGAMELIB/System.Diagnostics.CodeAnalysis/NotNullWhenAttribute.cs

@@ -1,12 +1,13 @@
-namespace System.Diagnostics.CodeAnalysis;
-
-[AttributeUsage(AttributeTargets.Parameter)]
-internal sealed class NotNullWhenAttribute : Attribute
+namespace System.Diagnostics.CodeAnalysis
 {
-    public NotNullWhenAttribute(bool returnValue)
+    [AttributeUsage(AttributeTargets.Parameter)]
+    internal sealed class NotNullWhenAttribute : Attribute
     {
-        ReturnValue = returnValue;
-    }
+        public NotNullWhenAttribute(bool returnValue)
+        {
+            ReturnValue = returnValue;
+        }
 
-    public bool ReturnValue { get; }
+        public bool ReturnValue { get; }
+    }
 }