Handle enum literals that are not a defined value of the enum

Fixes #30832
dotnet · May 9, 2023 · 589ec1c · 589ec1c
1 parent a9a2411
commit 589ec1c
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Showing 2 changed files with 225 additions and 8 deletions.
diff --git a/src/EFCore.Design/Design/Internal/CSharpHelper.cs b/src/EFCore.Design/Design/Internal/CSharpHelper.cs
@@ -924,7 +924,9 @@ public virtual string Literal(Enum value, bool fullName = false)
         var name = Enum.GetName(type, value);
 
         return name == null
-            ? GetCompositeEnumValue(type, value, fullName)
+            ? type.IsDefined(typeof(FlagsAttribute), false)
+                ? GetCompositeEnumValue(type, value, fullName)
+                : $"({type.DisplayName(fullName: true, compilable: true)}){UnknownLiteral(Convert.ChangeType(value, Enum.GetUnderlyingType(type)))}"
             : GetSimpleEnumValue(type, name, fullName);
     }