[new compiler] Initial support for attached properties

Attached properties are implemented similarly to group properties, except that
the object operated on isn't a QQmlValueType from a property (i.e. font) but the
QObject that implements the attached properties.

Change-Id: If73751162c191c65512ca1bddadd6270e6e33793
Reviewed-by: Lars Knoll <[email protected]>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/qml/compiler/qv4compileddata_p.h b/src/qml/compiler/qv4compileddata_p.h
index 0a404a454f..e11cdddcbb 100644
--- a/src/qml/compiler/qv4compileddata_p.h
+++ b/src/qml/compiler/qv4compileddata_p.h
@@ -334,9 +334,9 @@ struct Property
 
 struct Object
 {
-    // An empty inherited type name suggests that this object doesn't require to be instantiated
-    // by itself but is merely used for grouped properties. It can therefore only have bindings,
-    // so nProperties, nFunctions and nSignals must be zero.
+    // Depending on the use, this may be the type name to instantiate before instantiating this
+    // object. For grouped properties the type name will be empty and for attached properties
+    // it will be the name of the attached type.
     quint32 inheritedTypeNameIndex;
     quint32 idIndex;
     quint32 indexOfDefaultProperty;