Boo.Lang.Parser.BooParserBase.unless_stmt C# (CSharp) Method

        protected UnlessStatement unless_stmt()
        {
            UnlessStatement us;

            IToken  u = null;

                us = null;
                Expression condition = null;

            try {      // for error handling
            u = LT(1);
            match(UNLESS);
            condition=expression();
            if (0==inputState.guessing)
            {

                        us = new UnlessStatement(ToLexicalInfo(u));
                        us.Condition = condition;

            }
            compound_stmt(us.Block);
            }
            catch (RecognitionException ex)
            {
            if (0 == inputState.guessing)
            {
                reportError(ex, "unless_stmt");
                recover(ex,tokenSet_82_);
            }
            else
            {
                throw ex;
            }
            }
            return us;
        }