if ( state.failed ) return;
if ( state.backtracking == 0 && input.index() > first ) {
// expression consumed something
String arg = input.toString( first,
input.LT( -1 ).getTokenIndex() );
literal.constructorArg( arg );
}
more = input.LA( 1 ) == DRL6Lexer.COMMA;
if ( more ) {
match( input,
DRL6Lexer.COMMA,