[GHC] #9429: Alternative to type family Any
GHC
ghc-devs at haskell.org
Tue Aug 12 11:10:09 UTC 2014
#9429: Alternative to type family Any
-------------------------------------+-------------------------------------
Reporter: mboes | Owner:
Type: feature | Status: new
request | Milestone:
Priority: normal | Version: 7.9
Component: Compiler | Keywords:
Resolution: | Architecture: Unknown/Multiple
Operating System: | Difficulty: Unknown
Unknown/Multiple | Blocked By:
Type of failure: | Related Tickets: 9097, 9380
None/Unknown |
Test Case: |
Blocking: |
Differential Revisions: |
-------------------------------------+-------------------------------------
Comment (by mboes):
Making pattern-matching `Any`-aware makes sense to me. Again, I'm not
qualified to understand what the best way forward is here. But to answer
carter's question, ultimately for the purposes of `rank1dynamic` (and by
extension Cloud Haskell), what we need is way of reifying more polymorphic
types than we currently can.
Introducing some kind of `PolyTypeable` mechanism could certainly bypass
the question at hand. Really not sure how such an extension would work
though.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9429#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
More information about the ghc-tickets
mailing list