QJSEngine: Provide a method to coerce values in JS fashion

JavaScript has its own type coercion rules. We already have a methods
that coerce QVariants, QJSValues and QJSManagedValues to specific types.
The new method is a generalization of all of those and can coerce
everything to everything (as far as JavaScript can).

Change-Id: I9b6877fb40f67b6f2354781bbd4cf18cf996c7b0
Reviewed-by: Sami Shalayel <sami.shalayel@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/qml/jsruntime/qv4engine_p.h b/src/qml/jsruntime/qv4engine_p.h
index 067ddc7243..5434f55548 100644
--- a/src/qml/jsruntime/qv4engine_p.h
+++ b/src/qml/jsruntime/qv4engine_p.h
@@ -740,13 +740,14 @@ public:
     QV4::ReturnedValue callInContext(QV4::Function *function, QObject *self,
                                      QV4::ExecutionContext *ctxt, int argc, const QV4::Value *argv);
 
+    QV4::ReturnedValue fromData(
+            QMetaType type, const void *ptr,
+            Heap::Object *parent = nullptr, int property = -1, uint flags = 0);
+
 private:
     template<int Frames>
     friend struct ExecutionEngineCallDepthRecorder;
 
-    QV4::ReturnedValue fromData(
-            QMetaType type, const void *ptr,
-            Heap::Object *parent = nullptr, int property = -1, uint flags = 0);
     static void initializeStaticMembers();
 
     static int s_maxCallDepth;