centralize pointer-to-scriptvalue-attachment

Introduce attachPointerTo and attachedPointer
functions in scripttools.h.

Change-Id: I15ad41a51820035d621320b0a76978c7da0b75ed
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/lib/corelib/tools/scripttools.h b/src/lib/corelib/tools/scripttools.h
index 4230c898c..4aff3d397 100644
--- a/src/lib/corelib/tools/scripttools.h
+++ b/src/lib/corelib/tools/scripttools.h
@@ -88,6 +88,21 @@ private:
     QScriptEngine *m_scriptEngine;
 };
 
+template <class T>
+void attachPointerTo(QScriptValue &scriptValue, T *ptr)
+{
+    QVariant v;
+    v.setValue<quintptr>(reinterpret_cast<quintptr>(ptr));
+    scriptValue.setData(scriptValue.engine()->newVariant(v));
+}
+
+template <class T>
+T *attachedPointer(const QScriptValue &scriptValue)
+{
+    const quintptr ptr = scriptValue.data().toVariant().value<quintptr>();
+    return reinterpret_cast<T *>(ptr);
+}
+
 } // namespace Internal
 } // namespace qbs