/// <summary> /// Runs a setter with an update-function on an input, returns the modified input. /// Also known as <em>over</em>. /// </summary> public static T Update <S, T, A, B>(this ISetter <S, T, A, B> lens, S input, Func <A, B> f) => lens.SetFunc(a => new Identity <B>(f(a)))(input).Value;
/// <summary> /// Runs a setter on an input and returns the modified input. /// Also known as <em>set</em>. /// </summary> public static T Set <S, T, A, B>(this ISetter <S, T, A, B> lens, S input, B value) => lens.SetFunc(_ => new Identity <B>(value))(input).Value;
