Implement support for WeakMap

Change-Id: Id23e80fe5918ba7dc897568123bf3db4d35e9092
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/qml/memory/qv4mm_p.h b/src/qml/memory/qv4mm_p.h
index e3a011caf9..da162d2dfe 100644
--- a/src/qml/memory/qv4mm_p.h
+++ b/src/qml/memory/qv4mm_p.h
@@ -274,6 +274,8 @@ public:
         return static_cast<typename ManagedType::Data *>(b);
     }
 
+    void registerWeakMap(Heap::MapObject *map);
+
 protected:
     /// expects size to be aligned
     Heap::Base *allocString(std::size_t unmanagedSize);
@@ -296,6 +298,7 @@ public:
     PersistentValueStorage *m_persistentValues;
     PersistentValueStorage *m_weakValues;
     QVector<Value *> m_pendingFreedObjectWrapperValue;
+    Heap::MapObject *weakMaps = nullptr;
 
     std::size_t unmanagedHeapSize = 0; // the amount of bytes of heap that is not managed by the memory manager, but which is held onto by managed items.
     std::size_t unmanagedHeapSizeGCLimit;