Choice of Short closure Symbol

[HallofFamer]

I noticed that in your most recent macro, you are using ~> as the symbol for short closures. I am interested in the reason behind this choice. Is it for technically reasons, as it may be difficult or impossible to just use => as symbol? Or could it be that you are anticipating that PHP will be using ~> for its own short closure implementation in future, so it is an attempt to be consistent with the language itself? Just curious.

[assertchris]

It's a combination of both. There was a lot of extra code to deal with edge-cases for =>, and one of the things I want to try and do with this library is ease folks into future PHP features (if the short-closures RFC ever lands).