1 files changed, 4 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4argumentsobject_p.h b/src/qml/jsruntime/qv4argumentsobject_p.h
index b300dcf805..42b749cbb5 100644
--- a/src/qml/jsruntime/qv4argumentsobject_p.h
+++ b/src/qml/jsruntime/qv4argumentsobject_p.h
@@ -84,6 +84,10 @@ struct ArgumentsObject: Object {
     ArgumentsObject(CallContext *context);
     ~ArgumentsObject() {}
 
+    static bool isNonStrictArgumentsObject(Managed *m) {
+        return m->internalClass->vtable->type == Type_ArgumentsObject &&
+                !static_cast<ArgumentsObject *>(m)->context->strictMode;
+    }
 
     enum {
         LengthPropertyIndex = 0,