Fully support operator[] on QCborValue and QCborValueRef

Added operator[] to QCborValueRef and mutating operator[] both there
and in QCborValue.  If the value (referenced) is not a container, it
is replaced with a map and a reference into the result is returned.
If the value is an array and the key is a string, negative, or more
than 0xffff, the array is first converted to a map.

Change-Id: Ibbc9e480fb25eb3d05547c8a1b99e762b2a68b68
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/corelib/serialization/qcbormap.h b/src/corelib/serialization/qcbormap.h
index 0eb163a0a8..15a3bcdcef 100644
--- a/src/corelib/serialization/qcbormap.h
+++ b/src/corelib/serialization/qcbormap.h
@@ -118,6 +118,8 @@ public:
         QCborValueRef item;     // points to the value
         friend class Iterator;
         friend class QCborMap;
+        friend class QCborValue;
+        friend class QCborValueRef;
         ConstIterator(QCborContainerPrivate *dd, qsizetype ii) : item(dd, ii) {}
     public:
         typedef std::random_access_iterator_tag iterator_category;
@@ -323,9 +325,10 @@ public:
     QJsonObject toJsonObject() const;
 
 private:
+    friend class QCborValue;
+    friend class QCborValueRef;
     void detach(qsizetype reserve = 0);
 
-    friend QCborValue;
     explicit QCborMap(QCborContainerPrivate &dd) noexcept;
     QExplicitlySharedDataPointer<QCborContainerPrivate> d;
 };