#16300: Make TH always reify data types with explicit return kinds -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Template Haskell | Version: 8.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): I favor keeping the no-mixed-constructors and no-kind-sig-without-GADT- constructors restrictions: they keep TH closer to Haskell. I feel like every time TH diverges from Haskell, we regret it later. So, returning to the original question: how about non-`Type`-kinded datatypes/newtypes always reify as GADTs? The choice of syntax in reification is immaterial, so let's just change it. Also, we should reject the example in comment:2, as it would be rejected in Haskell. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16300#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler