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      1 grammar t026actions;
      2 options {
      3   language = JavaScript;
      4 }
      5 
      6 @lexer::init {
      7     this.xlog = [];
      8     this.foobar = "attribute;";
      9 }
     10 
     11 prog
     12 @init {
     13     this.xlog = [];
     14     this.xlog.push("init;");
     15 }
     16 @after {
     17     this.xlog.push("after;");
     18 }
     19     :   IDENTIFIER EOF
     20     ;
     21     catch [ exc ] {
     22         this.xlog.push("catch;");
     23         throw new Error();
     24     }
     25     finally {
     26         this.xlog.push("finally;");
     27     }
     28 
     29 
     30 IDENTIFIER
     31     : ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'0'..'9'|'_')*
     32         {
     33           // a comment
     34           this.xlog.push("action;");
     35           this.xlog.push([$text, $type, $line, $pos, $index, $channel, $start, $stop].join(" "));
     36           if (true)
     37               this.xlog.push(this.foobar);
     38         }
     39     ;
     40 
     41 WS: (' ' | '\n')+;
     42