Support JS Array.sort() function for sequence wrappers.

The V8 natve sort implementation calls some functions that are
incompatible with the way sequence wrappers work. In particular,
it calls an internal length() function which does not pass through
the length accessor provided by sequence wrappers, so the sort
function always thinks the array is zero length. Instead, clone the
array prototype and override the sort function with one that is
specific to sequence wrappers.

Task-number: QTBUG-25269
Change-Id: Ic83b9ee0bd3a0707e512f28057f0f99b432fded4
Reviewed-by: Matthew Vogt <matthew.vogt@nokia.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/tests/auto/qml/qqmlecmascript/testtypes.cpp b/tests/auto/qml/qqmlecmascript/testtypes.cpp
index b02e9963ab..77670f74da 100644
--- a/tests/auto/qml/qqmlecmascript/testtypes.cpp
+++ b/tests/auto/qml/qqmlecmascript/testtypes.cpp
@@ -190,6 +190,46 @@ void MyWorkerObject::doIt()
     new MyWorkerObjectThread(this);
 }
 
+class MyStringClass : public QObject
+{
+    Q_OBJECT
+public:
+    Q_INVOKABLE QStringList strings(QStringList stringList) const
+    {
+        return stringList;
+    }
+    Q_INVOKABLE QList<int> integers(QVariant v) const
+    {
+        QList<int> intList;
+        QList<QVariant> vList = v.toList();
+        for (int i=0 ; i < vList.size() ; ++i) {
+            int iv = vList[i].toInt();
+            intList.append(iv);
+        }
+        return intList;
+    }
+    Q_INVOKABLE QList<qreal> reals(QVariant v) const
+    {
+        QList<qreal> realList;
+        QList<QVariant> vList = v.toList();
+        for (int i=0 ; i < vList.size() ; ++i) {
+            qreal fv = vList[i].toReal();
+            realList.append(fv);
+        }
+        return realList;
+    }
+    Q_INVOKABLE QList<bool> bools(QVariant v) const
+    {
+        QList<bool> boolList;
+        QList<QVariant> vList = v.toList();
+        for (int i=0 ; i < vList.size() ; ++i) {
+            bool bv = vList[i].toBool();
+            boolList.append(bv);
+        }
+        return boolList;
+    }
+};
+
 void registerTypes()
 {
     qmlRegisterType<MyQmlObject>("Qt.test", 1,0, "MyQmlObjectAlias");
@@ -253,6 +293,8 @@ void registerTypes()
 
     qmlRegisterType<FallbackBindingsTypeObject>("Qt.test.fallbackBindingsObject", 1, 0, "FallbackBindingsType");
     qmlRegisterType<FallbackBindingsTypeDerived>("Qt.test.fallbackBindingsDerived", 1, 0, "FallbackBindingsType");
+
+    qmlRegisterType<MyStringClass>("Qt.test", 1, 0, "MyStringClass");
 }
 
 #include "testtypes.moc"