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      1 grammar t053heteroTP18;
      2 options {
      3     language=JavaScript;
      4     output=AST;
      5     tokenVocab=t053heteroT18;
      6 }
      7 tokens { ROOT; }
      8 @header {
      9 function V18(ttype, tree) {
     10     if (!tree) {
     11         V18.superclass.constructor.call(this, new org.antlr.runtime.CommonToken(ttype));
     12     } else {
     13         V18.superclass.constructor.call(this, tree);
     14         this.token.type = ttype;
     15     }
     16 };
     17 org.antlr.lang.extend(V18, org.antlr.runtime.tree.CommonTree, {
     18     toString: function() {
     19         return t053heteroTP18Parser.tokenNames[this.getType()] + "<V>@" +
     20             this.token.getLine();
     21     }
     22 });
     23 }
     24 a : ID -> ROOT<V18>[$ID]
     25   ;
     26 
     27