public void Listen(Action <TParam1> listener)
{
Assert.That(!_listeners.Contains(listener),
() => "Tried to add method '{0}' to signal '{1}' but it has already been added"
.Fmt(SignalInternalUtil.MethodToString(listener.Method), this.GetType().Name));
_listeners.Add(listener);
}
public void Unlisten(Action <TParam1> listener)
{
bool success = _listeners.Remove(listener);
Assert.That(success,
() => "Tried to remove method '{0}' from signal '{1}' without adding it first"
.Fmt(SignalInternalUtil.MethodToString(listener.Method), this.GetType().Name));
}
void IDisposable.Dispose()
{
Assert.That(!_hasDisposed, "Tried to dispose signal '{0}' twice", this.GetType().Name);
_hasDisposed = true;
// If you don't want to verify that all event handlers have been removed feel free to comment out this assert or remove
Assert.That(_listeners.IsEmpty(),
() => "Found {0} methods still added to signal '{1}'. Methods: {2}"
.Fmt(_listeners.Count, this.GetType().Name, _listeners.Select(x => SignalInternalUtil.MethodToString(x.Method)).Join(", ")));
}
