Немного легкой утренней наркомании

[love5an]

public static void CallWithEscapeContinuation(Action<Action> f)
{
  var escapeTag = new Exception();
  Action escapeProcedure = () => { throw escapeTag; };
  try
  {
    f(escapeProcedure);
  }
  catch (Exception e)
  {
    if (ReferenceEquals(escapeTag, e)) return;
    throw;
  }
}