void GenenrateSubject(EmitExpContext context)
        {
            ILGenerator il    = context.ILout;
            bool        isgen = false;

            if ((ListExp is VarExp))
            {
                VarExp varexp = ListExp as VarExp;
                if (ReflectionUtil.IsStruct(varexp.RetType))
                {
                    if (varexp.VarSymbol is SymbolVar)
                    {
                        il.Emit(OpCodes.Ldloca, (varexp.VarSymbol as SymbolVar).VarBuilder);
                        isgen = true;
                    }
                    else if (varexp.VarSymbol is SymbolArg)
                    {
                        il.Emit(OpCodes.Ldarga, (varexp.VarSymbol as SymbolArg).ArgIndex);
                        isgen = true;
                    }
                }
            }
            if (!isgen)
            {
                ListExp.Generate(context);
            }
        }
        void generateList(EmitStmtContext context)
        {
            ILGenerator    il         = context.ILout;
            EmitExpContext expContext = new EmitExpContext(context);

            ListExp.Generate(expContext);
            EmitHelper.StormVar(il, listSymbol.VarBuilder);
        }