コード例 #1
0
ファイル: ObjectContext.cs プロジェクト: pcluddite/tbasic
        /// <summary>
        /// Sets a constant that will be declared in this context. Once a constant is set, it cannot be changed.
        /// </summary>
        /// <param name="name">the constant name</param>
        /// <param name="obj">the object data</param>
        public void SetConstant(string name, object obj)
        {
            ObjectContext context = FindVariableContext(name);

            if (context == null)
            {
                context = FindConstantContext(name);
                if (context == null)
                {
                    _constants.Add(name, obj); // since you can set constants only once, we don't need to use the context in which a constant was set
                }
                else
                {
                    throw ThrowHelper.ConstantChange();
                }
            }
            else
            {
                throw ThrowHelper.AlreadyDefinedAsType(name, "variable", "constant");
            }
        }