Add CONSTANT attribute to Q_PROPERTY()

This will be used by the declarative module to determine if a property lacking a NOTIFY signal is truly constant, or just missing a NOTIFY signal.

Reviewed-by: Roberto Raggi

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/auto/qmetaobject/tst_qmetaobject.cpp b/tests/auto/qmetaobject/tst_qmetaobject.cpp
index dea0ffb..f4cff2b 100644
--- a/tests/auto/qmetaobject/tst_qmetaobject.cpp
+++ b/tests/auto/qmetaobject/tst_qmetaobject.cpp
@@ -108,6 +108,7 @@ class tst_QMetaObject : public QObject
     Q_PROPERTY(int value6 READ value6 NOTIFY value6Changed)
     Q_PROPERTY(MyStruct value7 READ value7 WRITE setVal7 NOTIFY value7Changed)
     Q_PROPERTY(int value8 READ value8 NOTIFY value8Changed)
+    Q_PROPERTY(int value9 READ value9 CONSTANT)
 
 public:
     enum EnumType { EnumType1 };
@@ -137,6 +138,8 @@ public:
 
     int value8() const { return 1; }
 
+    int value9() const { return 1; }
+
     QList<QVariant> value4;
     QVariantList value5;
 
@@ -159,6 +162,7 @@ private slots:
     void customPropertyType();
     void checkScope();
     void propertyNotify();
+    void propertyConstant();
 
     void stdSet();
     void classInfo();
@@ -785,6 +789,19 @@ void tst_QMetaObject::propertyNotify()
     QCOMPARE(signal.signature(), (const char *)0);
 }
 
+void tst_QMetaObject::propertyConstant()
+{
+    const QMetaObject *mo = metaObject();
+
+    QMetaProperty prop = mo->property(mo->indexOfProperty("value8"));
+    QVERIFY(prop.isValid());
+    QVERIFY(!prop.isConstant());
+
+    prop = mo->property(mo->indexOfProperty("value9"));
+    QVERIFY(prop.isValid());
+    QVERIFY(prop.isConstant());
+}
+
 class ClassInfoTestObjectA : public QObject
 {
     Q_OBJECT