Use variant instead of var in QML

In QML "var"s are not the same as JavaScript vars - they are QVariants
instead.  However, as they behave in a similar enough fashion to native
JavaScript it can be confusing to developers when they are called "var".

3 files changed, 10 insertions, 21 deletions

diff --git a/src/declarative/qml/qdeclarativebinding.cpp b/src/declarative/qml/qdeclarativebinding.cpp
index 6a99855..91eb915 100644
--- a/src/declarative/qml/qdeclarativebinding.cpp
+++ b/src/declarative/qml/qdeclarativebinding.cpp
@@ -170,19 +170,6 @@ void QDeclarativeBinding::update(QDeclarativePropertyPrivate::WriteFlags flags)
 
             if (data->error.isValid()) {
 
-            } else if (!scriptValue.isVariant() && value.userType() == QMetaType::QVariantList && 
-                       data->property.propertyType() == qMetaTypeId<QVariant>()) {
-
-                // This case catches QtScript's automatic conversion to QVariantList for arrays
-                QUrl url = QUrl(data->url);
-                int line = data->line;
-                if (url.isEmpty()) url = QUrl(QLatin1String("<Unknown File>"));
-
-                data->error.setUrl(url);
-                data->error.setLine(line);
-                data->error.setColumn(-1);
-                data->error.setDescription(QLatin1String("Unable to assign JavaScript array to QML variant property"));
-
             } else if (isUndefined && data->property.isResettable()) {
 
                 data->property.reset();
diff --git a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
index ec84da9..4601aaa 100644
--- a/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
+++ b/src/declarative/qml/qdeclarativeobjectscriptclass.cpp
@@ -361,12 +361,7 @@ void QDeclarativeObjectScriptClass::setProperty(QObject *obj,
         else
             v = enginePriv->scriptValueToVariant(value, lastData->propType);
 
-        if (!value.isVariant() && v.userType() == QMetaType::QVariantList &&
-            lastData->propType == qMetaTypeId<QVariant>()) {
-
-            QString error = QLatin1String("Cannot assign JavaScript array to QML variant property");
-            context->throwError(error);
-        } else if (!QDeclarativePropertyPrivate::write(obj, *lastData, v, evalContext)) {
+        if (!QDeclarativePropertyPrivate::write(obj, *lastData, v, evalContext)) {
             const char *valueType = 0;
             if (v.userType() == QVariant::Invalid) valueType = "null";
             else valueType = QMetaType::typeName(v.userType());
diff --git a/src/declarative/qml/qdeclarativescriptparser.cpp b/src/declarative/qml/qdeclarativescriptparser.cpp
index 507ff5b..92a10aa 100644
--- a/src/declarative/qml/qdeclarativescriptparser.cpp
+++ b/src/declarative/qml/qdeclarativescriptparser.cpp
@@ -535,7 +535,8 @@ bool ProcessAST::visit(AST::UiPublicMember *node)
         // { "time", Object::DynamicProperty::Time, "QTime" },
         // { "date", Object::DynamicProperty::Date, "QDate" },
         { "date", Object::DynamicProperty::DateTime, "QDateTime" },
-        { "var", Object::DynamicProperty::Variant, "QVariant" }
+        { "var", Object::DynamicProperty::Variant, "QVariant" },
+        { "variant", Object::DynamicProperty::Variant, "QVariant" }
     };
     const int propTypeNameToTypesCount = sizeof(propTypeNameToTypes) /
                                          sizeof(propTypeNameToTypes[0]);
@@ -563,7 +564,7 @@ bool ProcessAST::visit(AST::UiPublicMember *node)
                 _parser->_errors << error;
                 return false;
             }
-
+            
             signal.parameterTypes << qtType;
             signal.parameterNames << p->name->asString().toUtf8();
             p = p->finish();
@@ -646,6 +647,11 @@ bool ProcessAST::visit(AST::UiPublicMember *node)
         property.location = location(node->firstSourceLocation(),
                                      node->lastSourceLocation());
 
+        if (memberType == QByteArray("var")) 
+            qWarning().nospace() << qPrintable(_parser->_scriptFile) << ":" << property.location.start.line << ":" 
+                                 << property.location.start.column << ": var type has been replaced by variant.  "
+                                 << "Support will be removed entirely shortly.";
+
         if (node->expression) { // default value
             property.defaultValue = new Property;
             property.defaultValue->parent = _stateStack.top().object;
@@ -909,6 +915,7 @@ bool QDeclarativeScriptParser::parse(const QByteArray &qmldata, const QUrl &url)
     clear();
 
     const QString fileName = url.toString();
+    _scriptFile = fileName;
 
     QTextStream stream(qmldata, QIODevice::ReadOnly);
     stream.setCodec("UTF-8");