Dumpers: Add a dumper for QPointer

It has an internal QWeakPointer<QObject>, which is not helpful. Cast to the
QPointer's template argument instead.

Change-Id: I9308c5eb9ea3867a682c4e4cba5d8041547981d1
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

share/qtcreator/debugger/qttypes.py

@@ -1806,7 +1806,10 @@ def qdump__QSharedPointer(d, value):
 def qdump__QWeakPointer(d, value):
     qdump_QWeakPointerHelper(d, value, True)
 
-def qdump_QWeakPointerHelper(d, value, isWeak):
+def qdump__QPointer(d, value):
+    qdump_QWeakPointerHelper(d, value['wp'], True, value.type[0])
+
+def qdump_QWeakPointerHelper(d, value, isWeak, innerType = None):
     if isWeak:
         (d_ptr, val) = value.split('pp')
     else:
@@ -1828,7 +1831,8 @@ def qdump_QWeakPointerHelper(d, value, isWeak):
     d.check(strongref <= weakref)
     d.check(weakref <= 10*1000*1000)
 
-    innerType = value.type[0]
+    if innerType is None:
+        innerType = value.type[0]
     with Children(d):
         short = d.putSubItem('data', d.createValue(val, innerType))
         d.putIntItem('weakref', weakref)

tests/auto/debugger/tst_dumpers.cpp

@@ -3110,6 +3110,20 @@ void tst_Dumpers::dumper_data()
                 + Check("ppp.a", "1", "int");
 
 
+    QTest::newRow("QPointer")
+            << Data("#include <QPointer>\n"
+                    "#include <QTimer>\n",
+
+                    "QTimer timer; unused(&timer);\n"
+                    "QPointer<QTimer> ptr0; unused(&ptr0);\n"
+                    "QPointer<QTimer> ptr1(&timer); unused(&ptr1);\n\n")
+
+               + CoreProfile()
+
+               + Check("ptr0", "(null)", "@QPointer<QTimer>")
+               + Check("ptr1", "", "@QPointer<QTimer>");
+
+
     QTest::newRow("QScopedPointer")
             << Data("#include <QScopedPointer>\n"
                     "#include <QString>\n",