/// <summary>
/// Evaluates a condition on the wrapped value.
/// </summary>
/// <typeparam name="TSource">The type of the wrapped value.</typeparam>
/// <param name="source">The wrapper.</param>
/// <param name="predicate">A function to test the wrapped value for a condition.</param>
/// <returns>
/// <paramref name="source"/> if <paramref name="predicate"/> yields true when evaluated on the wrapped value; a wrapped <see cref="InvalidOperationException"/> otherwise.
/// </returns>
public static Try <TSource> Where <TSource>(this Try <TSource> source, Func <TSource, bool> predicate)
=> source.Bind(val => predicate(val) ? source : Try.LiftException <TSource>(new InvalidOperationException("Predicate not satisfied")));
/// <summary> /// Projects the wrapped value into a new wrapper. /// </summary> /// <typeparam name="TSource">The type of the wrapped value.</typeparam> /// <typeparam name="TResult">The type to project the value into.</typeparam> /// <param name="source">The wrapper.</param> /// <param name="project">A transform function to apply on the wrapped value.</param> /// <returns>The projection of the wrapped value.</returns> public static Try <TResult> SelectMany <TSource, TResult>(this Try <TSource> source, Func <TSource, Try <TResult> > project) => source.Bind(val => project(val));
/// <summary>
/// Projects the wrapped value into a new wrapper and invokes a result selector function on it.
/// </summary>
/// <typeparam name="TSource">The type of the wrapped value.</typeparam>
/// <typeparam name="TIntermediate">The type to project the value into.</typeparam>
/// <typeparam name="TResult">The type of the selected value.</typeparam>
/// <param name="source">The wrapper.</param>
/// <param name="project">A transform function to apply on the wrapped value.</param>
/// <param name="select">A result selector function to apply on the projected value.</param>
/// <returns>The selected value wrapped.</returns>
public static Try <TResult> SelectMany <TSource, TIntermediate, TResult>(
this Try <TSource> source,
Func <TSource, Try <TIntermediate> > project,
Func <TSource, TIntermediate, TResult> select) => source.Bind(sourceVal => project(sourceVal).Select(interVal => select(sourceVal, interVal)));
/// <summary> /// Projects the wrapped value into a new one and wraps it. /// </summary> /// <typeparam name="TSource">The type of the wrapped value.</typeparam> /// <typeparam name="TResult">The type to project the value into.</typeparam> /// <param name="source">The wrapper.</param> /// <param name="project">A transform function to apply on the wrapped value.</param> /// <returns>The projection of the wrapped value in a wrapper.</returns> public static Try <TResult> Select <TSource, TResult>(this Try <TSource> source, Func <TSource, TResult> project) => source.Bind(val => Try.LiftValue(project(val)));