nl_tokens: / * Node :: ( tokenizer optional init object ) - > node
pl_tokens: function Node ( t , init ) { var token = t . token ; if ( token ) { // If init.type exists it will override token.type. this . type = token . type ; this . value = token . value ; this . lineno = token . lineno ; // Start and end are file positions for error handling. this . <mask> = token . start ; this . end = token . end ; } else { this . lineno = t . lineno ; } // Node uses a tokenizer for debugging (getSource, filename getter). this . tokenizer = t ; this . children = [ ] ; for ( var prop in init ) this [ prop ] = init [ prop ] ; }