#11484: Type synonym using -XTypeInType can't be spliced with TH -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Template Haskell | Version: 8.0.1-rc1 Resolution: | Keywords: TypeInType Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): `getInitialKinds` produces the kind of a tycon from a `LHsQTyVars`. `kcTyClTyVars` and `tcTyClTyVars` then have to match up the bits in the `LHsQTyVars` with this produced kind, so that we know, for example, which kind variables are mentioned explicitly in the type and which aren't (affecting visibility). That is the point of `splitTelescopeTvs`, simply to find the correspondence between the `LHsQTyVars` and the kind of the tycon. With `TcTyCon`, we can just store this correspondence -- basically, storing in the `TcTyCon` exactly what `kcTyClTyVars` and `tcTyClTyVars` need to function. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11484#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler