[news.eclipse.modeling.tmf] Cross reference

[ouakib <m.ouakib@xxxxxxxxxxxxxx>]

Hi all ,
this is my grammar :

Root: (root+=Model)* ;
Class: "class" name=ID (elt+=Element)*  ;
Element : Attribute | Ref ;
Attribute : "var" name=ID ;
Ref : "ref" name=[Attribute|ID] ;

the attribute "name" in the element "Ref"  references all the elements "Attribute"  in the model 
How I can restrict this reference to reference only the "Attributres " which exists in then same  "Class"
for instance in this model :

class class1
    var var1 
    var var2
class class 2
   var var3
  var var4
  ref  var1

the reference to var1 from class2  must not work  because var1 must be in class1.