public override object VisitWhileStatement([NotNull] TinyScriptParser.WhileStatementContext context)
 {
     while (true)
     {
         var condition = (bool)VisitExpression(context.expression());
         if (!(condition))
         {
             break;
         }
         VisitBlockStatement(context.blockStatement());
     }
     return(null);
 }
        public override object VisitWhileStatement([NotNull] TinyScriptParser.WhileStatementContext context)
        {
            var l1 = _builder.DefineLabel();

            _builder.MarkLabel(l1);
            AssertIsBool(context, VisitExpression(context.expression()));
            var l2 = _builder.DefineLabel();

            _builder.BrFalse(l2);
            VisitBlockStatement(context.blockStatement());
            _builder.Br(l1);
            _builder.MarkLabel(l2);
            _builder.Nop();
            return(null);
        }