Accelerated C# 2008

Func<IList<T>,IList<T>> incrementer ) {

while( !finalState(theList) ) {

yield return theList.Head;

theList = incrementer( theList );

}

}

public static IList<T> Where<T>( this IList<T> theList,

Func<T, bool> predicate ) {

Func<IList<T>> whereTailFunc = null;

whereTailFunc = () => {

IList<T> result = null;

if( theList.Tail == null ) {

result = new MyList<T>( default(T), null );

}

if( predicate(theList.Head) ) {

result = new MyList<T>( theList.Head,

whereTailFunc );

}

theList = theList.Tail;

if( result == null ) {

result = whereTailFunc();

}

return result;

};

return whereTailFunc();

}

public static IList<R> Select<T,R>( this IList<T> theList,

Func<T,R> selector ) {

Func<IList<R>> selectorTailFunc = null;

selectorTailFunc = () => {

IList<R> result = null;

if( theList.Tail ...