Use explicit IsNull on BorrowedReference

filmor · filmor · commit 69ba86197ba0 · 2026-05-15T21:57:36.000+02:00
diff --git a/src/runtime/TypeManager.cs b/src/runtime/TypeManager.cs
@@ -171,7 +171,7 @@ public static int tp_setattro_dlr_proxy(BorrowedReference ob, BorrowedReference
                 // Try DLR member storage first
                 bool handled = false;
 
-                if (val == null)
+                if (val.IsNull)
                 {
                     handled = dynamicMemberAccessor.TryDeleteMember(dynamicObject, memberName);
                 }

Original file line number	Diff line number	Diff line change
`@@ -171,7 +171,7 @@ public static int tp_setattro_dlr_proxy(BorrowedReference ob, BorrowedReference`
`171`	`171`	`// Try DLR member storage first`
`172`	`172`	`bool handled = false;`
`173`	`173`
`174`		`- if (val == null)`
	`174`	`+ if (val.IsNull)`
`175`	`175`	`{`
`176`	`176`	`handled = dynamicMemberAccessor.TryDeleteMember(dynamicObject, memberName);`
`177`	`177`	`}`