Re: Request for feedback: deriving strategies syntax

On Aug 3, 2016, at 8:50 PM, Ryan Scott wrote:

* Template Haskell: Not portable. Staging issues make it hard to use as a drop-in replacement for the `deriving` keyword

I do not understand "not portable" here. Do you mean that some architectures don't support TH? What staging issues? I'm imagining here having `deriving Blah` be surface syntax that desugars into some TH splice. You keep the nice user-facing syntax, but make the deriving mechanism itself specified in TH code. It's an interesting idea, but one probably best tackled after the current proposal. Richard