#11011: Add type-indexed type representations (`TypeRep a`) -------------------------------------+------------------------------------- Reporter: bjmprice | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 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 bgamari): Actually, I forgot about a small wrinkle. `TyCon` is currently the only way one can query for the names of the package and module where a type constructor is defined. Perhaps we should just stick with the status quo: provide `TyCon` in unindexed form as essentially a record of basic metadata about a type constructor (perhaps even hiding the fingerprint, so users don't get any funny ideas). The important thing is that we don't provide a way to create a `TypeRep` from a `TyCon`. So long as this is the case the weakly-typed nature of `TyCon` should pose no threat. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11011#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler