public override void EnterSetDecl(ExpressParser.SetDeclContext context)
        {
            var ci = ((CollectionInfo)currentTypeInfo);

            ci.Rank++;
            ci.CollectionType = CollectionType.Set;
            ci.Size           = int.Parse(context.setParameters().Integer()[0].GetText());
        }
 /// <summary>
 /// Exit a parse tree produced by the <c>SetDecl</c>
 /// labeled alternative in <see cref="ExpressParser.collectionParameters"/>.
 /// <para>The default implementation does nothing.</para>
 /// </summary>
 /// <param name="context">The parse tree.</param>
 public virtual void ExitSetDecl([NotNull] ExpressParser.SetDeclContext context)
 {
 }