1 files changed, 14 insertions, 3 deletions
diff --git a/src/qml/memory/qv4mm_p.h b/src/qml/memory/qv4mm_p.h
index 6d6ce1bad7..c01866ff11 100644
--- a/src/qml/memory/qv4mm_p.h
+++ b/src/qml/memory/qv4mm_p.h
@@ -83,10 +83,10 @@ public:
     { return (size + 15) & ~0xf; }
 
     template<typename ManagedType>
-    inline typename ManagedType::Data *allocManaged(std::size_t size)
+    inline typename ManagedType::Data *allocManaged(std::size_t size, std::size_t unmanagedSize = 0)
     {
         size = align(size);
-        Heap::Base *o = allocData(size);
+        Heap::Base *o = allocData(size, unmanagedSize);
         o->setVtable(ManagedType::staticVTable());
         return static_cast<typename ManagedType::Data *>(o);
     }
@@ -109,6 +109,15 @@ public:
         return t->d();
     }
 
+    template <typename ManagedType, typename Arg1>
+    typename ManagedType::Data *allocWithStringData(std::size_t unmanagedSize, Arg1 arg1)
+    {
+        Scope scope(engine());
+        Scoped<ManagedType> t(scope, allocManaged<ManagedType>(sizeof(typename ManagedType::Data), unmanagedSize));
+        (void)new (t->d()) typename ManagedType::Data(this, arg1);
+        return t->d();
+    }
+
     template <typename ManagedType, typename Arg1, typename Arg2>
     typename ManagedType::Data *alloc(Arg1 arg1, Arg2 arg2)
     {
@@ -157,10 +166,12 @@ public:
     size_t getAllocatedMem() const;
     size_t getLargeItemsMem() const;
 
+    void growUnmanagedHeapSizeUsage(size_t delta); // called when a JS object grows itself. Specifically: Heap::String::append
+
 protected:
     /// expects size to be aligned
     // TODO: try to inline
-    Heap::Base *allocData(std::size_t size);
+    Heap::Base *allocData(std::size_t size, std::size_t unmanagedSize);
 
 #ifdef DETAILED_MM_STATS
     void willAllocate(std::size_t size);