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yuroyoro/Yコンビネータであばばば(ワンライナ—版).scala

Created December 16, 2010 09:05
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Yコンビネータであばばば(ワンライナ—版).scala
scala> Option({ def Y[Int,String](f:((Int => String),Int) => String,x:Int):String = f((y:Int) =>Y(f,y),x);Y( _:((Int => String),Int) => String,_:Int)}).map{y => y((f:Int => String,n:Int) => n match{case 0 => "ば";case 20 => "あ" + f(n-1);case m =>"ば" + f(n-1);},20)}.get
res42: String = あばばばばばばばばばばばばばばばばばばばば
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