add net9 (#22)

Add .net 9 as this enable new compiler checks.
fsprojects · Dec 29, 2024 · 26788ff · 26788ff
1 parent a9545fa
commit 26788ff
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/FSharp.MongoDB.Bson/FSharp.MongoDB.Bson.fsproj b/src/FSharp.MongoDB.Bson/FSharp.MongoDB.Bson.fsproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.1</TargetFramework>
+    <TargetFrameworks>net9.0;netstandard2.1</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>

diff --git a/src/FSharp.MongoDB.Bson/Serialization/Serializers/FSharpMapSerializer.fs b/src/FSharp.MongoDB.Bson/Serialization/Serializers/FSharpMapSerializer.fs
@@ -21,7 +21,7 @@ open MongoDB.Bson.Serialization.Serializers
 /// <summary>
 /// Serializer for F# maps.
 /// </summary>
-type FSharpMapSerializer<'KeyType, 'ValueType when 'KeyType : comparison>() =
+type FSharpMapSerializer<'KeyType, 'ValueType when 'KeyType : comparison and 'KeyType: not null>() =
     inherit SerializerBase<Map<'KeyType, 'ValueType>>()
 
     let serializer = DictionaryInterfaceImplementerSerializer<Dictionary<'KeyType, 'ValueType>>()