Make "on" syntax mandatory for value sources and interceptors

Where you would have written

   x: NumberAnimation {}
   y: Behavior {}

you now must write

   NumberAnimation on x {}
   Behavior on y {}

This change also makes the parser more strict with respect to multiple
assignments to a single property - they're no longer allowed.  For example
this

   x: 10
   x: 11

is now an error.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/declarative/qml/qdeclarativeparser_p.h b/src/declarative/qml/qdeclarativeparser_p.h
index aae507e..d0d7de1 100644
--- a/src/declarative/qml/qdeclarativeparser_p.h
+++ b/src/declarative/qml/qdeclarativeparser_p.h
@@ -320,6 +320,7 @@ namespace QDeclarativeParser
 
         Object *getValue();
         void addValue(Value *v);
+        void addOnValue(Value *v);
 
         // The QVariant::Type of the property, or 0 (QVariant::Invalid) if 
         // unknown.
@@ -333,6 +334,8 @@ namespace QDeclarativeParser
         // The list of values assigned to this property.  Content in values
         // and value are mutually exclusive
         QList<Value *> values;
+        // The list of values assigned to this property using the "on" syntax
+        QList<Value *> onValues;
         // The accessed property.  This is used to represent dot properties.
         // Content in value and values are mutually exclusive.
         Object *value;