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 Eval(RuntimeData runtime)
{
if (runtime.ContainsKey(this.Text))
{
var res = runtime.GetData(this.Token).Eval(runtime).Clone();
res = res.Power(runtime, this.Pow);
return(res);
}
// 変数として処理する
// その際に変数を評価して渡す
return(GetVariable(runtime).Eval(runtime));
throw new RuntimeException(string.Format("'{0}'は見つかりませんでした。", this.Text), this.Token);
}
public static IntegralConstant Create(RuntimeData runtime)
{
int i = 1;
for (; ; i++)
{
if (!runtime.ContainsKey("C" + i, true))
{
break;
}
}
IntegralConstant res = new Expression.IntegralConstant();
res.id = i;
return(res);
}
public override INumber Eval(RuntimeData runtime)
{
if (runtime.ContainsKey(this.Token.Text))
{
var res = runtime.GetData(this.Token);
res = res.Multiple(runtime, this.multi);
res = res.Power(runtime, this.Pow);
if (res == this)
{
return(this);
}
return(res.Eval(runtime));
}
else
{
return(this);
}
}
public override INumber ExecuteDiff(RuntimeData runtime, string t)
{
INumber res = null;
if (runtime.ContainsKey(this.Name))
{
res = this.Eval(runtime).ExecuteDiff(runtime, t);
}
else
{
if (this.Name == t)
{
if (!(this.multi is IConstParameter))
{
throw new NotImplementedException();
}
var me = this.Clone();
me.Pow = me.Pow.Subtract(runtime, Number.New(1));
me = me.Optimise(runtime);
res = me;
}
else
{
res = new FuncedINumber(
runtime.Functions["diff"], new INumber[] { new Variable(new Token(t, Analyzer.TokenType.Member)), this });
}
}
var mf = Runtime.Func.Differential.DiffPow(runtime, t, this);
if (mf != null)
{
mf.AddItem(runtime, res);
return(mf);
}
else
{
return(res);
}
}