Don't allow multiple values to be assigned to a singular property

Task-number: QTBUG-14005

7 files changed, 26 insertions, 1 deletions

diff --git a/src/declarative/qml/qdeclarativecompiler.cpp b/src/declarative/qml/qdeclarativecompiler.cpp
index dc28e22..7a29f24 100644
--- a/src/declarative/qml/qdeclarativecompiler.cpp
+++ b/src/declarative/qml/qdeclarativecompiler.cpp
@@ -1932,6 +1932,9 @@ bool QDeclarativeCompiler::buildPropertyAssignment(QDeclarativeParser::Property
 {
     obj->addValueProperty(prop);
 
+    if (prop->values.count() > 1)
+        COMPILE_EXCEPTION(prop->values.at(0), tr( "Cannot assign multiple values to a singular property") );
+
     for (int ii = 0; ii < prop->values.count(); ++ii) {
         Value *v = prop->values.at(ii);
         if (v->object) {
diff --git a/tests/auto/declarative/qdeclarativebehaviors/data/reassignedAnimation.qml b/tests/auto/declarative/qdeclarativebehaviors/data/reassignedAnimation.qml
index 9fca5c3..56ac216 100644
--- a/tests/auto/declarative/qdeclarativebehaviors/data/reassignedAnimation.qml
+++ b/tests/auto/declarative/qdeclarativebehaviors/data/reassignedAnimation.qml
@@ -7,9 +7,9 @@ Rectangle {
         objectName: "MyRect"
         width: 100; height: 100; color: "green"
         Behavior on x {
+            id: myBehavior
             objectName: "MyBehavior"
             NumberAnimation {id: na1; duration: 200 }
-            NumberAnimation {id: na2; duration: 1000 }
         }
     }
     MouseArea {
@@ -24,4 +24,9 @@ Rectangle {
             x: 200
         }
     }
+
+    NumberAnimation {id: na2; duration: 1000 }
+    Component.onCompleted: {
+        myBehavior.animation = na2;
+    }
 }
diff --git a/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.2.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.2.errors.txt
new file mode 100644
index 0000000..beae562
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.2.errors.txt
@@ -0,0 +1 @@
+5:10:Cannot assign multiple values to a singular property
diff --git a/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.2.qml b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.2.qml
new file mode 100644
index 0000000..2fd7fd2
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.2.qml
@@ -0,0 +1,7 @@
+import QtQuick 1.0
+
+QtObject {
+    property QtObject a
+    a: [ QtObject {}, QtObject {} ]
+}
+
diff --git a/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.errors.txt b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.errors.txt
new file mode 100644
index 0000000..beae562
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.errors.txt
@@ -0,0 +1 @@
+5:10:Cannot assign multiple values to a singular property
diff --git a/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.qml b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.qml
new file mode 100644
index 0000000..da56cb8
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativelanguage/data/singularProperty.qml
@@ -0,0 +1,6 @@
+import QtQuick 1.0
+
+QtObject {
+    property variant a
+    a: [ QtObject {}, QtObject {} ]
+}
diff --git a/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp b/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp
index 9a8c944..bb1312b 100644
--- a/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp
+++ b/tests/auto/declarative/qdeclarativelanguage/tst_qdeclarativelanguage.cpp
@@ -380,6 +380,8 @@ void tst_qdeclarativelanguage::errors_data()
     QTest::newRow("invalidProperty") << "invalidProperty.qml" << "invalidProperty.errors.txt" << false;
     QTest::newRow("nonScriptableProperty") << "nonScriptableProperty.qml" << "nonScriptableProperty.errors.txt" << false;
     QTest::newRow("notAvailable") << "notAvailable.qml" << "notAvailable.errors.txt" << false;
+    QTest::newRow("singularProperty") << "singularProperty.qml" << "singularProperty.errors.txt" << false;
+    QTest::newRow("singularProperty.2") << "singularProperty.2.qml" << "singularProperty.2.errors.txt" << false;
 }