Re: Adding an interface to provide a list of listeners

On Sun, Jul 27, 2014 at 7:52 PM, Glenn Adams <[email protected]> wrote:
> On Sun, Jul 27, 2014 at 1:42 PM, Anne van Kesteren <[email protected]> wrote:
>> I did not talk about triggering the observers. How does adding a
>> listener clearly have side effects?
>
> (1) it mutates the list of listeners on some node

Perhaps I should have said observable side effect from the perspective
of those adding the listener.


> (2) it creates a future promise to invoke those listeners, which invocation
> may (and usually does) produce side effects

That's immaterial.


-- 
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