api: Audience#foreach and Audience#filter

[kashike]

No description provided.

[kezz]

I think this is a decent idea - there's a lot of good use cases for it at least. However, I wonder if it might just be worth implementing Iterable at this point?

[kezz]

I mentioned this in Discord and it got lost to time so I'll just repeat here. It could be a good idea to just provide a method to get the audience as an iterable directly. Maybe exposing a stream as well could be a more "standard" way of implementing the filter system.

[lucko]

To be honest, I don't see the usecase...

foreach: why iterate when all of the methods on the audience delegate anyway?
filter: can appreciate how this might be useful, but what properties do you have to filter by? Audience doesn't really give you much unless you try casting etc...

[kezz]

Needs updating in regards to @since tags and style changes, but I like the concept - especially so with the addition of pointers.