[swift-evolution] Smart KeyPaths

[Ricardo Parada]

> On Mar 22, 2017, at 9:30 AM, Vladimir.S <svabox at gmail.com> wrote:
> 
> let path = @Bag.things[0].name
> 
> bag at path
> bag at .things[0].name
> bag at Bag.things[0].name
> bag.things[0]@.name
> bag.things[0]@Thing.name

It sounds like the @ character is serving two different purposes which confused me at first.  

If I understood correctly, you are using it to get the key path but also to apply the key path to the bag struct and get the corresponding value.