/// <summary>
/// Attempts to get the value of a Try* method with an out parameter, for example <see cref="Dictionary{TKey,TValue}.TryGetValue" /> or <see cref="ConcurrentQueue{T}.TryDequeue" />.
/// </summary>
/// <typeparam name="T">The type of the source object.</typeparam>
/// <typeparam name="TOut">The type the out parameter.</typeparam>
/// <param name="source">The source object exposing the Try* method.</param>
/// <param name="tryTryGetValue">A delegate to call the Try* method.</param>
/// <returns></returns>
public static Maybe <TOut> Out <T, TOut>(this T source, TryGetOutParameter <T, TOut> tryTryGetValue)
{
TOut result;
return(tryTryGetValue(source, out result)
? Maybe <TOut> .Yes(result)
: Maybe <TOut> .No());
}
/// <summary>
/// Attempts to get the value of a Try* method with an out parameter, for example <see cref="Dictionary{TKey,TValue}.TryGetValue" /> or <see cref="ConcurrentQueue{T}.TryDequeue" />.
/// </summary>
/// <typeparam name="T">The type of the source object.</typeparam>
/// <typeparam name="TOut">The type the out parameter.</typeparam>
/// <param name="source">The source object exposing the Try* method.</param>
/// <param name="tryTryGetValue">A delegate to call the Try* method.</param>
/// <returns></returns>
public static Maybe <TOut> Out <T, TOut>(this T source, TryGetOutParameter <T, TOut> tryTryGetValue)
{
TOut result;
if (tryTryGetValue(source, out result))
{
return(Recipes.Maybe <TOut> .Yes(result));
}
return(Recipes.Maybe <TOut> .No());
}
