/// <summary>
/// Converts the inner object of a <see cref="TaskHost"/> to the specified type so that
/// actions can be performed on it. This extends <see cref="Executable"/> but it must
/// be castable to a <see cref="TaskHost"/> to function.
/// </summary>
/// <typeparam name="T">The type of the inner object.</typeparam>
/// <param name="executable">The Executable to evaluate.</param>
/// <returns>The converted inner object.</returns>
/// <exception cref="InvalidCastException">Thrown if the executable is not a TaskHost, or if the inner object can't be cast to the specified type.</exception>
public static T ConvertTo <T>(this Executable executable)
where T : class
{
if (executable == null)
{
throw new ArgumentNullException(nameof(executable));
}
TaskHost taskHost = executable as TaskHost;
if (taskHost == null)
{
throw new InvalidCastException();
}
return(taskHost.ConvertTo <T>());
}
/// <summary>
/// Converts the inner object of a <see cref="TaskHost"/> to the specified type so that
/// actions can be performed on it.
/// </summary>
/// <typeparam name="T">The type of the inner object.</typeparam>
/// <param name="taskHost">The TaskHost to evaluate.</param>
/// <param name="action">The action to take on the inner object.</param>
/// <returns>The <see cref="taskHost"/> that was passed in.</returns>
/// <exception cref="InvalidCastException">Thrown if the inner object can't be cast to the specified type.</exception>
public static TaskHost As <T>(this TaskHost taskHost, Action <T> action)
where T : class
{
if (taskHost == null)
{
throw new ArgumentNullException(nameof(taskHost));
}
if (action == null)
{
throw new ArgumentNullException(nameof(action));
}
var innerObject = taskHost.ConvertTo <T>();
action(innerObject);
return(taskHost);
}
