Ejemplo n.º 1
0
        /// <summary>
        /// Evaluate a constant.
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public object VisitConstant(ConstantExpr expr)
        {
            var val = expr.Value;
            // 1. Null
            if (val == LObjects.Null)
                return val;

            if (val is LObject)
                return val;

            // 2. Actual value.
            var ltype = LangTypeHelper.ConvertToLangValue(val);
            return ltype;
        }
Ejemplo n.º 2
0
 /// <summary>
 /// Creates a variable expression with symbol scope, context, script refernce set.
 /// </summary>
 /// <param name="name"></param>
 /// <returns></returns>
 public static Expr Const(LObject obj, TokenData token)
 {
     var exp = new ConstantExpr();
     exp.Value = obj;
     SetupContext(exp, token);
     return exp;
 }
Ejemplo n.º 3
0
 /// <summary>
 /// Visits the condition expression tree
 /// </summary>
 /// <param name="exp"></param>
 public object VisitConstant(ConstantExpr exp)
 {
     return null;
 }