private static IExpression GetMember(RuntimeData runtime, IExpression parent, Member searchToken)
{
// まずは変数を検索する
if (parent == null)
{
if (runtime.ContainsKey(searchToken.Text))
{
return(runtime.GetData(searchToken.Token));
}
}
// 親メンバーから検索
if (parent != null)
{
throw new NotImplementedException();
}
// フィールドメンバーから検索
if (parent == null)
{
if (runtime.ContainsFunc(searchToken.Text))
{
return(runtime.GetFunc(searchToken, false));
}
}
// 不明なものはとりあえず変数と見立てる
if (parent == null)
{
return(new Variable(searchToken.Token));
}
throw new SyntaxException(string.Format("'{0}'は見つかりませんでした", searchToken.Text),
searchToken.Token, new KeyNotFoundException());
}
public override INumber Execute(RuntimeData runtime, params INumber[] parameters)
{
var param = parameters[0];
if (param is Variable || param is Member)
{
string name = "";
if (param is Variable)
{
name = (param as Variable).Name;
}
if (param is Member)
{
name = (param as Member).Text;
}
if (runtime.ContainsFunc(name))
{
var func = runtime.GetFunc(param, false);
if (func is UserDefineFunction)
{
return((func as UserDefineFunction).Formula as INumber);
}
}
}
return(parameters[0].Eval(runtime));
}